diff options
98 files changed, 2663 insertions, 2300 deletions
@@ -1,73 +1,48 @@ + uClibc-ng - a small C Library for Linux - uClibc - a Small C Library for Linux - Erik Andersen <andersen@codepoet.org> +uClibc-ng (aka µClibc-ng/pronounced yew-see-lib-see-next-generation) is a C +library for developing embedded Linux systems. It is much smaller than the GNU +C Library, but nearly all applications supported by glibc also work perfectly +with uClibc-ng. -uClibc (aka µClibc/pronounced yew-see-lib-see) is a C library for -developing embedded Linux systems. It is much smaller than the -GNU C Library, but nearly all applications supported by glibc -also work perfectly with uClibc. Porting applications from glibc -to uClibc typically involves just recompiling the source code. -uClibc even supports shared libraries and threading. It currently -runs on standard Linux and MMU-less (also known as µClinux) -systems with support for alpha, ARM, cris, e1, h8300, i386, i960, -m68k, microblaze, mips/mipsel, PowerPC, SH, SPARC, and v850 -processors. +uClibc-ng is a spin-off of uClibc from http://www.uclibc.org +from Erik Andersen and others. + +Porting applications from glibc to uClibc-ng typically involves just +recompiling the source code. uClibc-ng even supports shared libraries and +threading. It currently runs on standard Linux and MMU-less (also +known as µClinux) systems with support for ARC, ARM, Blackfin, i386, M68K/Coldfire +MIPS, MIPS64, PowerPC, SH, Sparc, X86_64 and XTENSA processors. If you are building an embedded Linux system and you find that glibc is eating up too much space, you should consider using -uClibc. If you are building a huge fileserver with 12 Terabytes +uClibc-ng. If you are building a huge fileserver with 12 Terabytes of storage, then using glibc may make more sense. Unless, for example, that 12 Terabytes will be Network Attached Storage and you plan to burn Linux into the system's firmware... -uClibc is maintained by Erik Andersen and is licensed under the +uClibc-ng is maintained by Waldemar Brodkorb and is licensed under the GNU LESSER GENERAL PUBLIC LICENSE. This license allows you to make closed source commercial applications using an unmodified -version of uClibc (Please consider sharing some of the money you -make ;-). You do not need to give away all your source code just -because you use uClibc and/or run on Linux. You should, however, +version of uClibc-ng. You do not need to give away all your source code just +because you use uClibc-ng and/or run on Linux. You should, however, carefuly review the license and make certain you understand and abide by it strictly. - For installation instructions, see the file INSTALL. -uClibc strives to be standards compliant, which means that most +uClibc-ng strives to be standards compliant, which means that most documentation written for SuSv3, or for glibc also applies to -uClibc functions. However, many GNU extensions are not supported +uClibc-ng functions. However, many GNU extensions are not supported because they have not been ported, or more importantly, would -increase the size of uClibc disproportional to the added -functionality. There is some discussion of these differences -in the "docs" directory. +increase the size of uClibc-ng disproportional to the added +functionality. -Additional information (recent releases, FAQ, mailing list, bugs, -etc.) can be found at http://www.uclibc.org/. +Additional information can be found at http://www.uclibc-ng.org/. -uClibc may be freely modified and distributed under the terms of +uClibc-ng may be freely modified and distributed under the terms of the GNU Lesser General Public License, which can be found in the -file COPYING.LIB. - -Please Note: - - There is an unwholesomely huge amount of code out there - that depends on the presence of GNU libc header files. - We have GNU libc compatible header files. So we have - committed a horrible sin in uClibc. We _lie_ and claim - to be GNU libc in order to force these applications to - work as their developers intended. This is IMHO, - pardonable, since these defines are not really intended - to check for the presence of a particular library, but - rather are used to define an _interface_. Some programs - are especially chummy with glibc, and may need this - behavior disabled by adding CFLAGS+=-D__FORCE_NOGLIBC - - If you want to make special exceptions in your code which are - specifically for uClibc, you can make certain to include features.h, - and then have your code check for uClibc as follows: - - #ifdef __UCLIBC__ - do_something_special(); - #endif +file COPYING. And most of all, be sure to have some fun! :-) - -Erik + -Waldemar @@ -127,9 +127,9 @@ export RUNTIME_PREFIX DEVEL_PREFIX KERNEL_HEADERS MULTILIB_DIR # Now config hard core -MAJOR_VERSION := 0 -MINOR_VERSION := 9 -SUBLEVEL := 34 +MAJOR_VERSION := 1 +MINOR_VERSION := 0 +SUBLEVEL := 0 EXTRAVERSION :=-git VERSION := $(MAJOR_VERSION).$(MINOR_VERSION).$(SUBLEVEL) ABI_VERSION := $(MAJOR_VERSION) @@ -810,11 +810,7 @@ ASFLAGS += $(ASFLAG_--noexecstack) LIBGCC_CFLAGS ?= $(CFLAGS) $(CPU_CFLAGS-y) $(eval $(call cache-output-var,LIBGCC,$(CC) $(LIBGCC_CFLAGS) -print-libgcc-file-name)) -$(eval $(call cache-output-var,LIBGCC_EH,$(CC) $(LIBGCC_CFLAGS) -print-file-name=libgcc_eh.a)) -# with -O0 we (e.g. lockf) might end up with references to -# _Unwind_Resume, so pull in gcc_eh in this case.. LIBGCC_DIR:=$(dir $(LIBGCC)) -LIBGCC += $(if $(DODEBUG),$(LIBGCC_EH)) # moved from libpthread/linuxthreads ifeq ($(UCLIBC_CTOR_DTOR),y) diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index 32180f72d..2dbd45540 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -45,8 +45,8 @@ choice help The architecture of your target. -config TARGET_alpha - bool "alpha" +#config TARGET_alpha +# bool "alpha" config TARGET_arc bool "arc" @@ -60,50 +60,52 @@ config TARGET_avr32 config TARGET_bfin bool "bfin" -config TARGET_c6x - bool "c6x" +# someone could sync this tree: +# http://linux-c6x.org/git/?p=uClibc.git;a=summary +#config TARGET_c6x +# bool "c6x" config TARGET_cris bool "cris" -config TARGET_e1 - bool "e1 (BROKEN)" +#config TARGET_e1 +# bool "e1 (BROKEN)" -config TARGET_frv - bool "frv (BROKEN)" +#config TARGET_frv +# bool "frv (BROKEN)" -config TARGET_h8300 - bool "h8300 (BROKEN)" +#config TARGET_h8300 +# bool "h8300 (BROKEN)" -config TARGET_hppa - bool "hppa" +#config TARGET_hppa +# bool "hppa" config TARGET_i386 bool "i386" -config TARGET_i960 - bool "i960 (BROKEN)" +#config TARGET_i960 +# bool "i960 (BROKEN)" -config TARGET_ia64 - bool "ia64" +#config TARGET_ia64 +# bool "ia64" config TARGET_m68k bool "m68k" -config TARGET_metag - bool "metag" +#config TARGET_metag +# bool "metag" -config TARGET_microblaze - bool "microblaze" +#config TARGET_microblaze +# bool "microblaze" config TARGET_mips bool "mips" -config TARGET_nios - bool "nios" +#config TARGET_nios +# bool "nios" -config TARGET_nios2 - bool "nios2" +#config TARGET_nios2 +# bool "nios2" config TARGET_powerpc bool "powerpc" @@ -111,17 +113,17 @@ config TARGET_powerpc config TARGET_sh bool "superh" -config TARGET_sh64 - bool "sh64" +#config TARGET_sh64 +# bool "sh64" config TARGET_sparc bool "sparc" -config TARGET_v850 - bool "v850 (BROKEN)" +#config TARGET_v850 +# bool "v850 (BROKEN)" -config TARGET_vax - bool "vax" +#config TARGET_vax +# bool "vax" config TARGET_x86_64 bool "x86_64" @@ -462,7 +464,7 @@ config LDSO_NO_CLEANUP Unless you know you need this, you should answer N. config UCLIBC_CTOR_DTOR - bool "Support global constructors and destructors" + boolean default y help If you wish to build uClibc with support for global constructor @@ -512,6 +514,16 @@ config LINUXTHREADS_OLD bool "older (stable) version of linuxthreads" # linuxthreads and linuxthreads.old need nanosleep() select UCLIBC_HAS_REALTIME + depends on !TARGET_arc && \ + !TARGET_arm && \ + !TARGET_i386 && \ + !TARGET_metag && \ + !TARGET_mips && \ + !TARGET_powerpc && \ + !TARGET_sh && \ + !TARGET_sparc && \ + !TARGET_x86_64 && \ + !TARGET_xtensa help There are two versions of linuxthreads. The older (stable) version has been in uClibc for quite a long time but hasn't seen too many @@ -521,6 +533,16 @@ config LINUXTHREADS_OLD config LINUXTHREADS_NEW bool "slightly newer version of linuxthreads" depends on ARCH_HAS_DEPRECATED_SYSCALLS + depends on !TARGET_arc && \ + !TARGET_arm && \ + !TARGET_i386 && \ + !TARGET_metag && \ + !TARGET_mips && \ + !TARGET_powerpc && \ + !TARGET_sh && \ + !TARGET_sparc && \ + !TARGET_x86_64 && \ + !TARGET_xtensa help The new version has not been tested much, and lacks ports for arches which glibc does not support (like bfin/frv/etc...), but is based on @@ -533,24 +555,21 @@ config UCLIBC_HAS_THREADS_NATIVE select UCLIBC_HAS_STDIO_FUTEXES select UCLIBC_HAS_REALTIME # i386 has no lowlevellock support (yet) as opposed to i486 onward - depends on !CONFIG_386 + depends on !CONFIG_386 && \ + !TARGET_alpha && \ + !TARGET_avr32 && \ + !TARGET_bfin && \ + !TARGET_c6x && \ + !TARGET_cris && \ + !TARGET_hppa && \ + !TARGET_ia64 && \ + !TARGET_m68k && \ + !TARGET_microblaze && \ + !TARGET_nios2 && \ + !TARGET_vax help If you want to compile uClibc with NPTL support, then answer Y. - IMPORTANT NOTE! NPTL requires a Linux 2.6 kernel, binutils - at least version 2.16 and GCC with at least version 4.1.0. NPTL - will not work with older versions of any above sources. If you - ignore any of these guidelines, you do so at your own risk. Do - not ask for help on any of the development mailing lists. - - !!!! WARNING !!!! BIG FAT WARNING !!!! REALLY BIG FAT WARNING !!!! - - This is experimental code and at times it may not even build and - even if it does it might decide to do random damage. This code is - potentially hazardous to your health and sanity. It will remain - that way until further notice at which point this notice will - disappear. Thank you for your support and for not smoking. - endchoice config UCLIBC_HAS_THREADS diff --git a/include/elf.h b/include/elf.h index 1979209cd..fc6086489 100644 --- a/include/elf.h +++ b/include/elf.h @@ -3072,8 +3072,11 @@ typedef Elf32_Addr Elf32_Conflict; #define R_XTENSA_SLOT12_ALT 47 #define R_XTENSA_SLOT13_ALT 48 #define R_XTENSA_SLOT14_ALT 49 +#define R_XTENSA_TLSDESC_FN 50 +#define R_XTENSA_TLSDESC_ARG 51 +#define R_XTENSA_TLS_TPOFF 53 /* Keep this the last entry. */ -#define R_XTENSA_NUM 50 +#define R_XTENSA_NUM 54 /* C6X specific relocs */ #define R_C6000_NONE 0 diff --git a/include/link.h b/include/link.h index 147b79384..67bc80062 100644 --- a/include/link.h +++ b/include/link.h @@ -132,6 +132,8 @@ struct link_map size_t l_tls_modid; /* Nonzero if _dl_init_static_tls should be called for this module */ unsigned int l_need_tls_init:1; + /* Address of TLS descriptor hash table. */ + void *l_tlsdesc_table; #endif #endif }; diff --git a/include/math.h b/include/math.h index ecb9aa6f6..40dd90ef0 100644 --- a/include/math.h +++ b/include/math.h @@ -118,6 +118,7 @@ __BEGIN_DECLS # define _Mfloat_ float # endif # define _Mdouble_ _Mfloat_ +# define _Mdouble_is_float_ # ifdef __STDC__ # define __MATH_PRECNAME(name,r) name##f##r # else @@ -126,6 +127,7 @@ __BEGIN_DECLS # define _Mdouble_BEGIN_NAMESPACE __BEGIN_NAMESPACE_C99 # define _Mdouble_END_NAMESPACE __END_NAMESPACE_C99 # include <bits/mathcalls.h> +# undef _Mdouble_is_float_ # undef _Mdouble_ # undef _Mdouble_BEGIN_NAMESPACE # undef _Mdouble_END_NAMESPACE diff --git a/ldso/include/dl-hash.h b/ldso/include/dl-hash.h index e1e3e3f95..18f21aefa 100644 --- a/ldso/include/dl-hash.h +++ b/ldso/include/dl-hash.h @@ -70,6 +70,8 @@ struct elf_resolve { size_t l_tls_modid; /* Nonzero if _dl_init_static_tls should be called for this module */ unsigned int l_need_tls_init:1; + /* Address of TLS descriptor hash table. */ + void *l_tlsdesc_table; #endif ElfW(Addr) mapaddr; diff --git a/ldso/include/inline-hashtab.h b/ldso/include/inline-hashtab.h new file mode 100644 index 000000000..4a4812027 --- /dev/null +++ b/ldso/include/inline-hashtab.h @@ -0,0 +1,265 @@ +/* + * The hashcode handling code below is heavily inspired in libiberty's + * hashtab code, but with most adaptation points and support for + * deleting elements removed. + * + * Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. + * Contributed by Vladimir Makarov (vmakarov@cygnus.com). + */ + +#ifndef INLINE_HASHTAB_H +# define INLINE_HASHTAB_H 1 + +static __always_inline unsigned long +higher_prime_number(unsigned long n) +{ + /* These are primes that are near, but slightly smaller than, a power of two. */ + static const unsigned long primes[] = { + 7, + 13, + 31, + 61, + 127, + 251, + 509, + 1021, + 2039, + 4093, + 8191, + 16381, + 32749, + 65521, + 131071, + 262139, + 524287, + 1048573, + 2097143, + 4194301, + 8388593, + 16777213, + 33554393, + 67108859, + 134217689, + 268435399, + 536870909, + 1073741789, + /* 4294967291 */ + ((unsigned long) 2147483647) + ((unsigned long) 2147483644), + }; + const unsigned long *low = &primes[0]; + const unsigned long *high = &primes[ARRAY_SIZE(primes)]; + + while (low != high) { + const unsigned long *mid = low + (high - low) / 2; + if (n > *mid) + low = mid + 1; + else + high = mid; + } + +#if 0 + /* If we've run out of primes, abort. */ + if (n > *low) { + fprintf(stderr, "Cannot find prime bigger than %lu\n", n); + abort(); + } +#endif + + return *low; +} + +struct funcdesc_ht +{ + /* Table itself */ + void **entries; + + /* Current size (in entries) of the hash table */ + size_t size; + + /* Current number of elements */ + size_t n_elements; +}; + +static __always_inline struct funcdesc_ht * +htab_create(void) +{ + struct funcdesc_ht *ht = _dl_malloc(sizeof(*ht)); + size_t ent_size; + + if (!ht) + return NULL; + ht->size = 3; + ent_size = sizeof(void *) * ht->size; + ht->entries = _dl_malloc(ent_size); + if (!ht->entries) + return NULL; + + ht->n_elements = 0; + _dl_memset(ht->entries, 0, ent_size); + + return ht; +} + +/* + * This is only called from _dl_loadaddr_unmap, so it's safe to call + * _dl_free(). See the discussion below. + */ +static __always_inline void +htab_delete(struct funcdesc_ht *htab) +{ + size_t i; + + for (i = htab->size - 1; i >= 0; i--) + if (htab->entries[i]) + _dl_free(htab->entries[i]); + + _dl_free(htab->entries); + _dl_free(htab); +} + +/* + * Similar to htab_find_slot, but without several unwanted side effects: + * - Does not call htab->eq_f when it finds an existing entry. + * - Does not change the count of elements/searches/collisions in the + * hash table. + * This function also assumes there are no deleted entries in the table. + * HASH is the hash value for the element to be inserted. + */ +static __always_inline void ** +find_empty_slot_for_expand(struct funcdesc_ht *htab, int hash) +{ + size_t size = htab->size; + unsigned int index = hash % size; + void **slot = htab->entries + index; + int hash2; + + if (!*slot) + return slot; + + hash2 = 1 + hash % (size - 2); + for (;;) { + index += hash2; + if (index >= size) + index -= size; + + slot = htab->entries + index; + if (!*slot) + return slot; + } +} + +/* + * The following function changes size of memory allocated for the + * entries and repeatedly inserts the table elements. The occupancy + * of the table after the call will be about 50%. Naturally the hash + * table must already exist. Remember also that the place of the + * table entries is changed. If memory allocation failures are allowed, + * this function will return zero, indicating that the table could not be + * expanded. If all goes well, it will return a non-zero value. + */ +static __always_inline int +htab_expand(struct funcdesc_ht *htab, int (*hash_fn) (void *)) +{ + void **oentries; + void **olimit; + void **p; + void **nentries; + size_t nsize; + + oentries = htab->entries; + olimit = oentries + htab->size; + + /* + * Resize only when table after removal of unused elements is either + * too full or too empty. + */ + if (htab->n_elements * 2 > htab->size) + nsize = higher_prime_number(htab->n_elements * 2); + else + nsize = htab->size; + + nentries = _dl_malloc(sizeof(*nentries) * nsize); + _dl_memset(nentries, 0, sizeof(*nentries) * nsize); + if (nentries == NULL) + return 0; + htab->entries = nentries; + htab->size = nsize; + + p = oentries; + do { + if (*p) + *find_empty_slot_for_expand(htab, hash_fn(*p)) = *p; + p++; + } while (p < olimit); + +#if 0 + /* + * We can't tell whether this was allocated by the _dl_malloc() + * built into ld.so or malloc() in the main executable or libc, + * and calling free() for something that wasn't malloc()ed could + * do Very Bad Things (TM). Take the conservative approach + * here, potentially wasting as much memory as actually used by + * the hash table, even if multiple growths occur. That's not + * so bad as to require some overengineered solution that would + * enable us to keep track of how it was allocated. + */ + _dl_free(oentries); +#endif + return 1; +} + +/* + * This function searches for a hash table slot containing an entry + * equal to the given element. To delete an entry, call this with + * INSERT = 0, then call htab_clear_slot on the slot returned (possibly + * after doing some checks). To insert an entry, call this with + * INSERT = 1, then write the value you want into the returned slot. + * When inserting an entry, NULL may be returned if memory allocation + * fails. + */ +static __always_inline void ** +htab_find_slot(struct funcdesc_ht *htab, void *ptr, int insert, + int (*hash_fn)(void *), int (*eq_fn)(void *, void *)) +{ + unsigned int index; + int hash, hash2; + size_t size; + void **entry; + + if (htab->size * 3 <= htab->n_elements * 4 && + htab_expand(htab, hash_fn) == 0) + return NULL; + + hash = hash_fn(ptr); + + size = htab->size; + index = hash % size; + + entry = &htab->entries[index]; + if (!*entry) + goto empty_entry; + else if (eq_fn(*entry, ptr)) + return entry; + + hash2 = 1 + hash % (size - 2); + for (;;) { + index += hash2; + if (index >= size) + index -= size; + + entry = &htab->entries[index]; + if (!*entry) + goto empty_entry; + else if (eq_fn(*entry, ptr)) + return entry; + } + + empty_entry: + if (!insert) + return NULL; + + htab->n_elements++; + return entry; +} + +#endif diff --git a/ldso/include/ldsodefs.h b/ldso/include/ldsodefs.h index 4063d00f4..f17ac0ca0 100644 --- a/ldso/include/ldsodefs.h +++ b/ldso/include/ldsodefs.h @@ -62,13 +62,18 @@ extern void _dl_get_tls_static_info (size_t *sizep, size_t *alignp) extern void _dl_allocate_static_tls (struct link_map *map) internal_function attribute_hidden; +extern int _dl_try_allocate_static_tls (struct link_map* map) + internal_function attribute_hidden; /* Taken from glibc/elf/dl-reloc.c */ #define CHECK_STATIC_TLS(sym_map) \ do { \ - if (unlikely((sym_map)->l_tls_offset == NO_TLS_OFFSET)) \ + if (__builtin_expect ((sym_map)->l_tls_offset == NO_TLS_OFFSET, 0)) \ _dl_allocate_static_tls (sym_map); \ } while (0) +#define TRY_STATIC_TLS(sym_map) \ + (__builtin_expect ((sym_map)->l_tls_offset != NO_TLS_OFFSET, 1) \ + || _dl_try_allocate_static_tls (sym_map) == 0) /* These are internal entry points to the two halves of _dl_allocate_tls, only used within rtld.c itself at startup time. */ diff --git a/ldso/include/tlsdeschtab.h b/ldso/include/tlsdeschtab.h new file mode 100644 index 000000000..86baea148 --- /dev/null +++ b/ldso/include/tlsdeschtab.h @@ -0,0 +1,119 @@ +/* Hash table for TLS descriptors. + Copyright (C) 2005-2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Alexandre Oliva <aoliva@redhat.com> + + uClibc port by Baruch Siach <baruch@tkos.co.il> + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef TLSDESCHTAB_H +# define TLSDESCHTAB_H 1 + +# ifdef SHARED + +# include <inline-hashtab.h> + +inline static int +hash_tlsdesc (void *p) +{ + struct tlsdesc_dynamic_arg *td = p; + + /* We know all entries are for the same module, so ti_offset is the + only distinguishing entry. */ + return td->tlsinfo.ti_offset; +} + +inline static int +eq_tlsdesc (void *p, void *q) +{ + struct tlsdesc_dynamic_arg *tdp = p, *tdq = q; + + return tdp->tlsinfo.ti_offset == tdq->tlsinfo.ti_offset; +} + +inline static int +map_generation (struct link_map *map) +{ + size_t idx = map->l_tls_modid; + struct dtv_slotinfo_list *listp = GL(dl_tls_dtv_slotinfo_list); + + /* Find the place in the dtv slotinfo list. */ + do + { + /* Does it fit in the array of this list element? */ + if (idx < listp->len) + { + /* We should never get here for a module in static TLS, so + we can assume that, if the generation count is zero, we + still haven't determined the generation count for this + module. */ + if (listp->slotinfo[idx].gen) + return listp->slotinfo[idx].gen; + else + break; + } + idx -= listp->len; + listp = listp->next; + } + while (listp != NULL); + + /* If we get to this point, the module still hasn't been assigned an + entry in the dtv slotinfo data structures, and it will when we're + done with relocations. At that point, the module will get a + generation number that is one past the current generation, so + return exactly that. */ + return GL(dl_tls_generation) + 1; +} + +void * +internal_function +_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset) +{ + struct funcdesc_ht *ht; + void **entry; + struct tlsdesc_dynamic_arg *td, test; + + ht = map->l_tlsdesc_table; + if (! ht) + { + ht = htab_create (); + if (! ht) + return 0; + map->l_tlsdesc_table = ht; + } + + test.tlsinfo.ti_module = map->l_tls_modid; + test.tlsinfo.ti_offset = ti_offset; + entry = htab_find_slot (ht, &test, 1, hash_tlsdesc, eq_tlsdesc); + if (*entry) + { + td = *entry; + return td; + } + + *entry = td = _dl_malloc (sizeof (struct tlsdesc_dynamic_arg)); + /* This may be higher than the map's generation, but it doesn't + matter much. Worst case, we'll have one extra DTV update per + thread. */ + td->gen_count = map_generation (map); + td->tlsinfo = test.tlsinfo; + + return td; +} + +# endif /* SHARED */ + +#endif diff --git a/ldso/ldso/dl-tls.c b/ldso/ldso/dl-tls.c index 6679693f4..5d6d3b9d3 100644 --- a/ldso/ldso/dl-tls.c +++ b/ldso/ldso/dl-tls.c @@ -100,20 +100,16 @@ _dl_realloc (void * __ptr, size_t __size) * the static TLS area already allocated for each running thread. If this * object's TLS segment is too big to fit, we fail. If it fits, * we set MAP->l_tls_offset and return. - * This function intentionally does not return any value but signals error - * directly, as static TLS should be rare and code handling it should - * not be inlined as much as possible. */ -void -internal_function __attribute_noinline__ -_dl_allocate_static_tls (struct link_map *map) +int +internal_function +_dl_try_allocate_static_tls (struct link_map* map) { /* If the alignment requirements are too high fail. */ if (map->l_tls_align > _dl_tls_static_align) { fail: - _dl_dprintf(2, "cannot allocate memory in static TLS block"); - _dl_exit(30); + return -1; } # ifdef TLS_TCB_AT_TP @@ -169,6 +165,23 @@ fail: } else map->l_need_tls_init = 1; + + return 0; +} + +/* + * This function intentionally does not return any value but signals error + * directly, as static TLS should be rare and code handling it should + * not be inlined as much as possible. + */ +void +internal_function __attribute_noinline__ +_dl_allocate_static_tls (struct link_map *map) +{ + if (_dl_try_allocate_static_tls (map)) { + _dl_dprintf(2, "cannot allocate memory in static TLS block"); + _dl_exit(30); + } } #ifdef SHARED diff --git a/ldso/ldso/fdpic/dl-inlines.h b/ldso/ldso/fdpic/dl-inlines.h index 14a491689..ebbd0334c 100644 --- a/ldso/ldso/fdpic/dl-inlines.h +++ b/ldso/ldso/fdpic/dl-inlines.h @@ -5,6 +5,8 @@ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. */ +#include <inline-hashtab.h> + /* Initialize a DL_LOADADDR_TYPE given a got pointer and a complete load map. */ static __always_inline void __dl_init_loadaddr_map(struct elf32_fdpic_loadaddr *loadaddr, Elf32_Addr dl_boot_got_pointer, @@ -143,269 +145,18 @@ __dl_addr_in_loadaddr(void *p, struct elf32_fdpic_loadaddr loadaddr) return 0; } -/* - * The hashcode handling code below is heavily inspired in libiberty's - * hashtab code, but with most adaptation points and support for - * deleting elements removed. - * - * Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - * Contributed by Vladimir Makarov (vmakarov@cygnus.com). - */ -static __always_inline unsigned long -higher_prime_number(unsigned long n) -{ - /* These are primes that are near, but slightly smaller than, a power of two. */ - static const unsigned long primes[] = { - 7, - 13, - 31, - 61, - 127, - 251, - 509, - 1021, - 2039, - 4093, - 8191, - 16381, - 32749, - 65521, - 131071, - 262139, - 524287, - 1048573, - 2097143, - 4194301, - 8388593, - 16777213, - 33554393, - 67108859, - 134217689, - 268435399, - 536870909, - 1073741789, - /* 4294967291 */ - ((unsigned long) 2147483647) + ((unsigned long) 2147483644), - }; - const unsigned long *low = &primes[0]; - const unsigned long *high = &primes[ARRAY_SIZE(primes)]; - - while (low != high) { - const unsigned long *mid = low + (high - low) / 2; - if (n > *mid) - low = mid + 1; - else - high = mid; - } - -#if 0 - /* If we've run out of primes, abort. */ - if (n > *low) { - fprintf(stderr, "Cannot find prime bigger than %lu\n", n); - abort(); - } -#endif - - return *low; -} - -struct funcdesc_ht -{ - /* Table itself */ - struct funcdesc_value **entries; - - /* Current size (in entries) of the hash table */ - size_t size; - - /* Current number of elements */ - size_t n_elements; -}; - -static __always_inline int -hash_pointer(const void *p) +static int +hash_pointer(void *p) { return (int) ((long)p >> 3); } -static __always_inline struct funcdesc_ht * -htab_create(void) -{ - struct funcdesc_ht *ht = _dl_malloc(sizeof(*ht)); - size_t ent_size; - - if (!ht) - return NULL; - ht->size = 3; - ent_size = sizeof(struct funcdesc_ht_value *) * ht->size; - ht->entries = _dl_malloc(ent_size); - if (!ht->entries) - return NULL; - - ht->n_elements = 0; - _dl_memset(ht->entries, 0, ent_size); - - return ht; -} - -/* - * This is only called from _dl_loadaddr_unmap, so it's safe to call - * _dl_free(). See the discussion below. - */ -static __always_inline void -htab_delete(struct funcdesc_ht *htab) +static int +eq_pointer(void *p, void *q) { - size_t i; - - for (i = htab->size - 1; i >= 0; i--) - if (htab->entries[i]) - _dl_free(htab->entries[i]); - - _dl_free(htab->entries); - _dl_free(htab); -} - -/* - * Similar to htab_find_slot, but without several unwanted side effects: - * - Does not call htab->eq_f when it finds an existing entry. - * - Does not change the count of elements/searches/collisions in the - * hash table. - * This function also assumes there are no deleted entries in the table. - * HASH is the hash value for the element to be inserted. - */ -static __always_inline struct funcdesc_value ** -find_empty_slot_for_expand(struct funcdesc_ht *htab, int hash) -{ - size_t size = htab->size; - unsigned int index = hash % size; - struct funcdesc_value **slot = htab->entries + index; - int hash2; - - if (!*slot) - return slot; - - hash2 = 1 + hash % (size - 2); - for (;;) { - index += hash2; - if (index >= size) - index -= size; - - slot = htab->entries + index; - if (!*slot) - return slot; - } -} - -/* - * The following function changes size of memory allocated for the - * entries and repeatedly inserts the table elements. The occupancy - * of the table after the call will be about 50%. Naturally the hash - * table must already exist. Remember also that the place of the - * table entries is changed. If memory allocation failures are allowed, - * this function will return zero, indicating that the table could not be - * expanded. If all goes well, it will return a non-zero value. - */ -static __always_inline int -htab_expand(struct funcdesc_ht *htab) -{ - struct funcdesc_value **oentries; - struct funcdesc_value **olimit; - struct funcdesc_value **p; - struct funcdesc_value **nentries; - size_t nsize; - - oentries = htab->entries; - olimit = oentries + htab->size; - - /* - * Resize only when table after removal of unused elements is either - * too full or too empty. - */ - if (htab->n_elements * 2 > htab->size) - nsize = higher_prime_number(htab->n_elements * 2); - else - nsize = htab->size; - - nentries = _dl_malloc(sizeof(*nentries) * nsize); - _dl_memset(nentries, 0, sizeof(*nentries) * nsize); - if (nentries == NULL) - return 0; - htab->entries = nentries; - htab->size = nsize; - - p = oentries; - do { - if (*p) - *find_empty_slot_for_expand(htab, hash_pointer((*p)->entry_point)) = *p; - p++; - } while (p < olimit); - -#if 0 - /* - * We can't tell whether this was allocated by the _dl_malloc() - * built into ld.so or malloc() in the main executable or libc, - * and calling free() for something that wasn't malloc()ed could - * do Very Bad Things (TM). Take the conservative approach - * here, potentially wasting as much memory as actually used by - * the hash table, even if multiple growths occur. That's not - * so bad as to require some overengineered solution that would - * enable us to keep track of how it was allocated. - */ - _dl_free(oentries); -#endif - return 1; -} - -/* - * This function searches for a hash table slot containing an entry - * equal to the given element. To delete an entry, call this with - * INSERT = 0, then call htab_clear_slot on the slot returned (possibly - * after doing some checks). To insert an entry, call this with - * INSERT = 1, then write the value you want into the returned slot. - * When inserting an entry, NULL may be returned if memory allocation - * fails. - */ -static __always_inline struct funcdesc_value ** -htab_find_slot(struct funcdesc_ht *htab, void *ptr, int insert) -{ - unsigned int index; - int hash, hash2; - size_t size; - struct funcdesc_value **entry; - - if (htab->size * 3 <= htab->n_elements * 4 && - htab_expand(htab) == 0) - return NULL; - - hash = hash_pointer(ptr); - - size = htab->size; - index = hash % size; - - entry = &htab->entries[index]; - if (!*entry) - goto empty_entry; - else if ((*entry)->entry_point == ptr) - return entry; - - hash2 = 1 + hash % (size - 2); - for (;;) { - index += hash2; - if (index >= size) - index -= size; - - entry = &htab->entries[index]; - if (!*entry) - goto empty_entry; - else if ((*entry)->entry_point == ptr) - return entry; - } - - empty_entry: - if (!insert) - return NULL; + struct funcdesc_value *entry = p; - htab->n_elements++; - return entry; + return entry->entry_point == q; } void * @@ -424,7 +175,7 @@ _dl_funcdesc_for (void *entry_point, void *got_value) tpnt->funcdesc_ht = ht; } - entry = htab_find_slot(ht, entry_point, 1); + entry = htab_find_slot(ht, entry_point, 1, hash_pointer, eq_pointer); if (*entry) { _dl_assert((*entry)->entry_point == entry_point); return _dl_stabilize_funcdesc(*entry); @@ -459,7 +210,8 @@ _dl_lookup_address(void const *address) if (fd->got_value != rpnt->loadaddr.got_value) continue; - address = htab_find_slot(rpnt->funcdesc_ht, (void *)fd->entry_point, 0); + address = htab_find_slot(rpnt->funcdesc_ht, (void *)fd->entry_point, 0, + hash_pointer, eq_pointer); if (address && *(struct funcdesc_value *const*)address == fd) { address = (*(struct funcdesc_value *const*)address)->entry_point; diff --git a/ldso/ldso/xtensa/dl-debug.h b/ldso/ldso/xtensa/dl-debug.h index 4128d9452..18beae5ca 100644 --- a/ldso/ldso/xtensa/dl-debug.h +++ b/ldso/ldso/xtensa/dl-debug.h @@ -8,54 +8,31 @@ static const char * const _dl_reltypes_tab[] = { - "R_XTENSA_NONE", - "R_XTENSA_32", - "R_XTENSA_RTLD", - "R_XTENSA_GLOB_DAT", - "R_XTENSA_JMP_SLOT", - "R_XTENSA_RELATIVE", - "R_XTENSA_PLT", - "R_XTENSA_UNUSED7", - "R_XTENSA_OP0", - "R_XTENSA_OP1", - "R_XTENSA_OP2", - "R_XTENSA_ASM_EXPAND", - "R_XTENSA_ASM_SIMPLIFY", - "R_XTENSA_UNUSED13", - "R_XTENSA_UNUSED14", - "R_XTENSA_GNU_VTINHERIT", - "R_XTENSA_GNU_VTENTRY", - "R_XTENSA_DIFF8", - "R_XTENSA_DIFF16", - "R_XTENSA_DIFF32", - "R_XTENSA_SLOT0_OP", - "R_XTENSA_SLOT1_OP", - "R_XTENSA_SLOT2_OP", - "R_XTENSA_SLOT3_OP", - "R_XTENSA_SLOT4_OP", - "R_XTENSA_SLOT5_OP", - "R_XTENSA_SLOT6_OP", - "R_XTENSA_SLOT7_OP", - "R_XTENSA_SLOT8_OP", - "R_XTENSA_SLOT9_OP", - "R_XTENSA_SLOT10_OP", - "R_XTENSA_SLOT11_OP", - "R_XTENSA_SLOT12_OP", - "R_XTENSA_SLOT13_OP", - "R_XTENSA_SLOT14_OP", - "R_XTENSA_SLOT0_ALT", - "R_XTENSA_SLOT1_ALT", - "R_XTENSA_SLOT2_ALT", - "R_XTENSA_SLOT3_ALT", - "R_XTENSA_SLOT4_ALT", - "R_XTENSA_SLOT5_ALT", - "R_XTENSA_SLOT6_ALT", - "R_XTENSA_SLOT7_ALT", - "R_XTENSA_SLOT8_ALT", - "R_XTENSA_SLOT9_ALT", - "R_XTENSA_SLOT10_ALT", - "R_XTENSA_SLOT11_ALT", - "R_XTENSA_SLOT12_ALT", - "R_XTENSA_SLOT13_ALT", - "R_XTENSA_SLOT14_ALT" + [0] "R_XTENSA_NONE", "R_XTENSA_32", + [2] "R_XTENSA_RTLD", "R_XTENSA_GLOB_DAT", + [4] "R_XTENSA_JMP_SLOT", "R_XTENSA_RELATIVE", + [6] "R_XTENSA_PLT", "R_XTENSA_UNUSED7", + [8] "R_XTENSA_OP0", "R_XTENSA_OP1", + [10] "R_XTENSA_OP2", "R_XTENSA_ASM_EXPAND", + [12] "R_XTENSA_ASM_SIMPLIFY", "R_XTENSA_UNUSED13", + [14] "R_XTENSA_UNUSED14", "R_XTENSA_GNU_VTINHERIT", + [16] "R_XTENSA_GNU_VTENTRY", "R_XTENSA_DIFF8", + [18] "R_XTENSA_DIFF16", "R_XTENSA_DIFF32", + [20] "R_XTENSA_SLOT0_OP", "R_XTENSA_SLOT1_OP", + [22] "R_XTENSA_SLOT2_OP", "R_XTENSA_SLOT3_OP", + [24] "R_XTENSA_SLOT4_OP", "R_XTENSA_SLOT5_OP", + [26] "R_XTENSA_SLOT6_OP", "R_XTENSA_SLOT7_OP", + [28] "R_XTENSA_SLOT8_OP", "R_XTENSA_SLOT9_OP", + [30] "R_XTENSA_SLOT10_OP", "R_XTENSA_SLOT11_OP", + [32] "R_XTENSA_SLOT12_OP", "R_XTENSA_SLOT13_OP", + [34] "R_XTENSA_SLOT14_OP", "R_XTENSA_SLOT0_ALT", + [36] "R_XTENSA_SLOT1_ALT", "R_XTENSA_SLOT2_ALT", + [38] "R_XTENSA_SLOT3_ALT", "R_XTENSA_SLOT4_ALT", + [40] "R_XTENSA_SLOT5_ALT", "R_XTENSA_SLOT6_ALT", + [42] "R_XTENSA_SLOT7_ALT", "R_XTENSA_SLOT8_ALT", + [44] "R_XTENSA_SLOT9_ALT", "R_XTENSA_SLOT10_ALT", + [46] "R_XTENSA_SLOT11_ALT", "R_XTENSA_SLOT12_ALT", + [48] "R_XTENSA_SLOT13_ALT", "R_XTENSA_SLOT14_ALT", + [50] "R_XTENSA_TLSDESC_FN", "R_XTENSA_TLSDESC_ARG", + [52] "R_XTENSA_TLS_TPOFF" }; diff --git a/ldso/ldso/xtensa/dl-startup.h b/ldso/ldso/xtensa/dl-startup.h index b135a4cb8..70a6255d9 100644 --- a/ldso/ldso/xtensa/dl-startup.h +++ b/ldso/ldso/xtensa/dl-startup.h @@ -11,7 +11,7 @@ __asm__ ( " .text\n" " .align 4\n" - " .literal_position\n" + " .literal_position\n" " .global _start\n" " .type _start, @function\n" " .hidden _start\n" diff --git a/ldso/ldso/xtensa/dl-sysdep.h b/ldso/ldso/xtensa/dl-sysdep.h index a0ed4e5f2..148de5b95 100644 --- a/ldso/ldso/xtensa/dl-sysdep.h +++ b/ldso/ldso/xtensa/dl-sysdep.h @@ -78,10 +78,13 @@ typedef struct xtensa_got_location_struct { struct elf_resolve; extern unsigned long _dl_linux_resolver (struct elf_resolve *, int); -/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so - undefined references should not be allowed to define the value. */ +/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry or + TLS variable, so undefined references should not be allowed to define + the value. */ #define elf_machine_type_class(type) \ - (((type) == R_XTENSA_JMP_SLOT) * ELF_RTYPE_CLASS_PLT) + (((type) == R_XTENSA_JMP_SLOT || (type) == R_XTENSA_TLS_TPOFF \ + || (type) == R_XTENSA_TLSDESC_FN || (type) == R_XTENSA_TLSDESC_ARG) \ + * ELF_RTYPE_CLASS_PLT) /* Return the link-time address of _DYNAMIC. */ static __always_inline Elf32_Addr diff --git a/ldso/ldso/xtensa/dl-tlsdesc.S b/ldso/ldso/xtensa/dl-tlsdesc.S new file mode 100644 index 000000000..a6ebc949e --- /dev/null +++ b/ldso/ldso/xtensa/dl-tlsdesc.S @@ -0,0 +1,96 @@ +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2012-2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <sysdep.h> +#include <tls.h> +#include "tlsdesc.h" + + + .text + .align 4 + .hidden _dl_tlsdesc_return + .global _dl_tlsdesc_return + .type _dl_tlsdesc_return, @function +_dl_tlsdesc_return: + entry a1, 16 + rur.threadptr a3 + add a2, a2, a3 + retw + .size _dl_tlsdesc_return, .-_dl_tlsdesc_return + +#ifdef SHARED + + + /* This function is used for symbols that need dynamic TLS. + + The argument passed to this function points to the TLS descriptor. + + The assembly code that follows is a rendition of the following + C code, hand-optimized a little bit. + + ptrdiff_t + _dl_tlsdesc_dynamic(struct tlsdesc_dynamic_arg *td) + { + dtv_t *dtv = (dtv_t *)THREAD_DTV(); + if (td->gen_count <= dtv[0].counter + && dtv[td->tlsinfo.ti_module].pointer.val + != TLS_DTV_UNALLOCATED) + return dtv[td->tlsinfo.ti_module].pointer.val + + td->tlsinfo.ti_offset - __builtin_thread_pointer(); + return __tls_get_addr (&td->tlsinfo) - __builtin_thread_pointer(); + } + */ + + .align 4 + .hidden _dl_tlsdesc_dynamic + .global _dl_tlsdesc_dynamic + .type _dl_tlsdesc_dynamic, @function +_dl_tlsdesc_dynamic: + entry a1, 32 + + /* dtv_t *dtv = (dtv_t *)THREAD_DTV(); */ + rur.threadptr a3 + l32i a4, a3, 0 + + /* if (td->gen_count <= dtv[0].counter */ + l32i a6, a2, TLSDESC_GEN_COUNT + l32i a7, a4, 0 + blt a7, a6, .Lslow + + /* && dtv[td->tlsinfo.ti_module].pointer.val != TLS_DTV_UNALLOCATED) */ + l32i a6, a2, TLSDESC_MODID + addx8 a6, a3, a6 + l32i a6, a6, 0 + beqi a6, -1, .Lslow + + /* return dtv[td->tlsinfo.ti_module].pointer.val + + td->tlsinfo.ti_offset - __builtin_thread_pointer(); */ + l32i a6, a2, TLSDESC_MODOFF + sub a2, a6, a3 + retw + + /* return __tls_get_addr (&td->tlsinfo) - __builtin_thread_pointer(); */ +.Lslow: + mov a10, a2 + movi a8, __tls_get_addr + callx8 a8 + sub a2, a10, a3 + retw + .size _dl_tlsdesc_dynamic, .-_dl_tlsdesc_dynamic + +#endif /* SHARED */ diff --git a/ldso/ldso/xtensa/elfinterp.c b/ldso/ldso/xtensa/elfinterp.c index b4cf9752d..1397e95c9 100644 --- a/ldso/ldso/xtensa/elfinterp.c +++ b/ldso/ldso/xtensa/elfinterp.c @@ -31,6 +31,8 @@ */ #include "ldso.h" +#include "dl-tls.h" +#include "tlsdeschtab.h" unsigned long _dl_linux_resolver (struct elf_resolve *tpnt, int reloc_entry) @@ -146,6 +148,9 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, int reloc_type; int symtab_index; char *symname; +#if defined USE_TLS && USE_TLS + struct elf_resolve *tls_tpnt = NULL; +#endif struct symbol_ref sym_ref; ElfW(Addr) *reloc_addr; ElfW(Addr) symbol_addr; @@ -172,15 +177,22 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, * here, so all bases should be covered. */ if (unlikely (!symbol_addr && + ELF_ST_TYPE (sym_ref.sym->st_info) != STT_TLS && ELF_ST_BIND (sym_ref.sym->st_info) != STB_WEAK)) { - _dl_dprintf (2, "%s: can't resolve symbol '%s'\n", - _dl_progname, symname); - _dl_exit (1); + return 1; } if (_dl_trace_prelink) { _dl_debug_lookup (symname, tpnt, &symtab[symtab_index], &sym_ref, elf_machine_type_class(reloc_type)); } +#if defined USE_TLS && USE_TLS + tls_tpnt = sym_ref.tpnt; +#endif + } else { + symbol_addr =symtab[symtab_index].st_value; +#if defined USE_TLS && USE_TLS + tls_tpnt = tpnt; +#endif } #if defined (__SUPPORT_LD_DEBUG__) @@ -198,8 +210,8 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, case R_XTENSA_RTLD: if (rpnt->r_addend == 1) { - /* Grab the function pointer stashed at the beginning of the - GOT by the GOT_INIT function. */ + /* Grab the function pointer stashed at the beginning + of the GOT by the GOT_INIT function. */ *reloc_addr = *(ElfW(Addr) *) tpnt->dynamic_info[DT_PLTGOT]; } else if (rpnt->r_addend == 2) { /* Store the link map for the object. */ @@ -213,6 +225,35 @@ _dl_do_reloc (struct elf_resolve *tpnt, struct r_scope_elem *scope, *reloc_addr += tpnt->loadaddr + rpnt->r_addend; break; +#if defined USE_TLS && USE_TLS + case R_XTENSA_TLS_TPOFF: + CHECK_STATIC_TLS((struct link_map *) tls_tpnt); + *reloc_addr = symbol_addr + tls_tpnt->l_tls_offset + rpnt->r_addend; + break; + case R_XTENSA_TLSDESC_FN: +#ifndef SHARED + CHECK_STATIC_TLS((struct link_map *) tls_tpnt); +#else + if (!TRY_STATIC_TLS ((struct link_map *) tls_tpnt)) + *reloc_addr = (ElfW(Addr)) _dl_tlsdesc_dynamic; + else +#endif + *reloc_addr = (ElfW(Addr)) _dl_tlsdesc_return; + break; + case R_XTENSA_TLSDESC_ARG: +#ifndef SHARED + CHECK_STATIC_TLS((struct link_map *) tls_tpnt); +#else + if (!TRY_STATIC_TLS ((struct link_map *) tls_tpnt)) + *reloc_addr = (ElfW(Addr)) + _dl_make_tlsdesc_dynamic((struct link_map *) tls_tpnt, + symbol_addr + *reloc_addr); + else +#endif + *reloc_addr += symbol_addr + tls_tpnt->l_tls_offset; + break; +#endif + default: return -1; /* Calls _dl_exit(1). */ } diff --git a/libc/stdlib/system.c b/libc/stdlib/system.c index 3ef9a8b1c..7f81f947a 100644 --- a/libc/stdlib/system.c +++ b/libc/stdlib/system.c @@ -91,9 +91,6 @@ libc_hidden_proto(waitpid) #elif defined __sparc__ # define FORK() \ INLINE_CLONE_SYSCALL (CLONE_PARENT_SETTID | SIGCHLD, 0, &pid, NULL, NULL) -#elif defined __s390__ -# define FORK() \ - INLINE_SYSCALL (clone, 3, 0, CLONE_PARENT_SETTID | SIGCHLD, &pid) #else # define FORK() \ INLINE_SYSCALL (clone, 3, CLONE_PARENT_SETTID | SIGCHLD, 0, &pid) diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in index a175ab64c..9d41771e2 100644 --- a/libc/sysdeps/linux/common/Makefile.in +++ b/libc/sysdeps/linux/common/Makefile.in @@ -25,6 +25,8 @@ CSRC-$(UCLIBC_LINUX_SPECIFIC) += \ capset.c \ dup3.c \ eventfd.c \ + eventfd_read.c \ + eventfd_write.c \ inotify.c \ ioperm.c \ iopl.c \ diff --git a/libc/sysdeps/linux/common/bits/mathcalls.h b/libc/sysdeps/linux/common/bits/mathcalls.h index 84b793c96..427027355 100644 --- a/libc/sysdeps/linux/common/bits/mathcalls.h +++ b/libc/sysdeps/linux/common/bits/mathcalls.h @@ -271,7 +271,9 @@ __END_NAMESPACE_C99 #ifdef __USE_ISOC99 __BEGIN_NAMESPACE_C99 /* True gamma function. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (tgamma,, (_Mdouble_)) +# endif __END_NAMESPACE_C99 #endif @@ -299,7 +301,9 @@ __MATHCALLI (rint,, (_Mdouble_ __x)) /* Return X + epsilon if X < Y, X - epsilon if X > Y. */ __MATHCALLX (nextafter,, (_Mdouble_ __x, _Mdouble_ __y), (__const__)) # if defined __USE_ISOC99 && !defined __LDBL_COMPAT +# ifndef _Mdouble_is_float_ __MATHCALLX (nexttoward,, (_Mdouble_ __x, long double __y), (__const__)) +# endif # endif /* Return the remainder of integer divison X / Y with infinite precision. */ @@ -316,11 +320,15 @@ __MATHDECLI (int,ilogb,, (_Mdouble_ __x)) #ifdef __USE_ISOC99 /* Return X times (2 to the Nth power). */ +# ifndef _Mdouble_is_float_ __MATHCALLI (scalbln,, (_Mdouble_ __x, long int __n)) +# endif /* Round X to integral value in floating-point format using current rounding direction, but do not raise inexact exception. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (nearbyint,, (_Mdouble_ __x)) +# endif /* Round X to nearest integral value, rounding halfway cases away from zero. */ @@ -333,7 +341,9 @@ __MATHCALLX (trunc,, (_Mdouble_ __x), (__const__)) /* Compute remainder of X and Y and put in *QUO a value with sign of x/y and magnitude congruent `mod 2^n' to the magnitude of the integral quotient x/y, with n >= 3. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (remquo,, (_Mdouble_ __x, _Mdouble_ __y, int *__quo)) +# endif /* Conversion functions. */ @@ -350,13 +360,19 @@ __MATHDECLI (long long int,llround,, (_Mdouble_ __x)) /* Return positive difference between X and Y. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (fdim,, (_Mdouble_ __x, _Mdouble_ __y)) +# endif /* Return maximum numeric value from X and Y. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (fmax,, (_Mdouble_ __x, _Mdouble_ __y)) +# endif /* Return minimum numeric value from X and Y. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (fmin,, (_Mdouble_ __x, _Mdouble_ __y)) +# endif /* Classify given number. */ @@ -367,7 +383,9 @@ __MATHDECL_PRIV (int, signbit,, (_Mdouble_ __value), (__const__)) /* Multiply-add function computed as a ternary operation. */ +# ifndef _Mdouble_is_float_ __MATHCALLI (fma,, (_Mdouble_ __x, _Mdouble_ __y, _Mdouble_ __z)) +# endif #endif /* Use ISO C99. */ #if defined __USE_MISC || defined __USE_XOPEN_EXTENDED || defined __USE_ISOC99 diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/pt-vfork.S b/libc/sysdeps/linux/common/eventfd_read.c index 37231a8c3..75f2aaa11 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/pt-vfork.S +++ b/libc/sysdeps/linux/common/eventfd_read.c @@ -1,6 +1,5 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. +/* Copyright (C) 2007-2014 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -16,29 +15,13 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> -#include <tcb-offsets.h> +#include <errno.h> +#include <unistd.h> +#include <sys/eventfd.h> - .text - .globl __syscall_error -ENTRY(__vfork) - ld [%g7 + PID], %o5 - sub %g0, %o5, %o4 - st %o4, [%g7 + PID] - LOADSYSCALL(vfork) - ta 0x10 - bcc 2f - mov %o7, %g1 - st %o5, [%g7 + PID] - call __syscall_error - mov %g1, %o7 -2: sub %o1, 1, %o1 - andcc %o0, %o1, %o0 - bne,a 1f - st %o5, [%g7 + PID] -1: retl - nop -END(__vfork) - -weak_alias (__vfork, vfork) +int +eventfd_read (int fd, eventfd_t *value) +{ + return read (fd, value, sizeof (eventfd_t)) != sizeof (eventfd_t) ? -1 : 0; +} diff --git a/libc/sysdeps/linux/common/eventfd_write.c b/libc/sysdeps/linux/common/eventfd_write.c new file mode 100644 index 000000000..e1509cf5c --- /dev/null +++ b/libc/sysdeps/linux/common/eventfd_write.c @@ -0,0 +1,28 @@ +/* Copyright (C) 2007-2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <unistd.h> +#include <sys/eventfd.h> + + +int +eventfd_write (int fd, eventfd_t value) +{ + return write (fd, &value, + sizeof (eventfd_t)) != sizeof (eventfd_t) ? -1 : 0; +} diff --git a/libc/sysdeps/linux/common/sys/eventfd.h b/libc/sysdeps/linux/common/sys/eventfd.h index 1bf785f32..91b265b2c 100644 --- a/libc/sysdeps/linux/common/sys/eventfd.h +++ b/libc/sysdeps/linux/common/sys/eventfd.h @@ -33,16 +33,12 @@ __BEGIN_DECLS value to COUNT. */ extern int eventfd (int __count, int __flags) __THROW; -#if 0 /* not (yet) implemented in uClibc */ - /* Read event counter and possibly wait for events. */ extern int eventfd_read (int __fd, eventfd_t *__value); /* Increment event counter. */ extern int eventfd_write (int __fd, eventfd_t __value); -#endif - __END_DECLS #endif /* sys/eventfd.h */ diff --git a/libc/sysdeps/linux/cris/sys/procfs.h b/libc/sysdeps/linux/cris/sys/procfs.h index d4ee05134..65b57ba4e 100644 --- a/libc/sysdeps/linux/cris/sys/procfs.h +++ b/libc/sysdeps/linux/cris/sys/procfs.h @@ -28,10 +28,14 @@ #include <sys/types.h> #include <sys/ucontext.h> #include <sys/user.h> -#include <asm/elf.h> __BEGIN_DECLS +typedef unsigned long elf_greg_t; + +#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t)) +typedef elf_greg_t elf_gregset_t[ELF_NGREG]; + struct elf_siginfo { int si_signo; /* Signal number. */ diff --git a/libc/sysdeps/linux/cris/sysdep.S b/libc/sysdeps/linux/cris/sysdep.S index 8f25fb722..a23bb260f 100644 --- a/libc/sysdeps/linux/cris/sysdep.S +++ b/libc/sysdeps/linux/cris/sysdep.S @@ -35,7 +35,7 @@ ENTRY (__syscall_error) /* Note that __syscall_error is only visible within this library, and no-one passes it on as a pointer, so can assume that R0 (GOT pointer) is correctly set up. */ - PLTCALL (HIDDEN_JUMPTARGET(__errno_location)) + PLTCALL (__errno_location) move [sp+],srp move.d [sp+],r11 diff --git a/libc/sysdeps/linux/m68k/sys/reg.h b/libc/sysdeps/linux/m68k/sys/reg.h deleted file mode 100644 index 984898100..000000000 --- a/libc/sysdeps/linux/m68k/sys/reg.h +++ /dev/null @@ -1,88 +0,0 @@ -/* Copyright (C) 1998 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _SYS_REG_H -#define _SYS_REG_H 1 - -/* Index into an array of 4 byte integers returned from ptrace for - location of the users' stored general purpose registers. */ - -enum -{ - PT_D1 = 0, -#define PT_D1 PT_D1 - PT_D2 = 1, -#define PT_D2 PT_D2 - PT_D3 = 2, -#define PT_D3 PT_D3 - PT_D4 = 3, -#define PT_D4 PT_D4 - PT_D5 = 4, -#define PT_D5 PT_D5 - PT_D6 = 5, -#define PT_D6 PT_D6 - PT_D7 = 6, -#define PT_D7 PT_D7 - PT_A0 = 7, -#define PT_A0 PT_A0 - PT_A1 = 8, -#define PT_A1 PT_A1 - PT_A2 = 9, -#define PT_A2 PT_A2 - PT_A3 = 10, -#define PT_A3 PT_A3 - PT_A4 = 11, -#define PT_A4 PT_A4 - PT_A5 = 12, -#define PT_A5 PT_A5 - PT_A6 = 13, -#define PT_A6 PT_A6 - PT_D0 = 14, -#define PT_D0 PT_D0 - PT_USP = 15, -#define PT_USP PT_USP - PT_ORIG_D0 = 16, -#define PT_ORIG_D0 PT_ORIG_D0 - PT_SR = 17, -#define PT_SR PT_SR - PT_PC = 18, -#define PT_PC PT_PC - PT_FP0 = 21, -#define PT_FP0 PT_FP0 - PT_FP1 = 24, -#define PT_FP1 PT_FP1 - PT_FP2 = 27, -#define PT_FP2 PT_FP2 - PT_FP3 = 30, -#define PT_FP3 PT_FP3 - PT_FP4 = 33, -#define PT_FP4 PT_FP4 - PT_FP5 = 36, -#define PT_FP5 PT_FP5 - PT_FP6 = 39, -#define PT_FP6 PT_FP6 - PT_FP7 = 42, -#define PT_FP7 PT_FP7 - PT_FPCR = 45, -#define PT_FPCR PT_FPCR - PT_FPSR = 46, -#define PT_FPSR PT_FPSR - PT_FPIAR = 47 -#define PT_FPIAR PT_FPIAR -}; - -#endif /* _SYS_REG_H */ diff --git a/libc/sysdeps/linux/xtensa/Makefile.arch b/libc/sysdeps/linux/xtensa/Makefile.arch index 277a1e325..b9b6b87d5 100644 --- a/libc/sysdeps/linux/xtensa/Makefile.arch +++ b/libc/sysdeps/linux/xtensa/Makefile.arch @@ -5,7 +5,10 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -CSRC-y := brk.c fork.c sigaction.c __syscall_error.c +CSRC-y := brk.c sigaction.c __syscall_error.c SSRC-y := bsd-_setjmp.S bsd-setjmp.S setjmp.S clone.S \ sigrestorer.S syscall.S mmap.S windowspill.S __longjmp.S vfork.S + +CSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += fork.c +SSRC-$(if $(UCLIBC_HAS_THREADS_NATIVE),,y) += clone.S diff --git a/libc/sysdeps/linux/xtensa/clone.S b/libc/sysdeps/linux/xtensa/clone.S index aa79aa736..34d68a875 100644 --- a/libc/sysdeps/linux/xtensa/clone.S +++ b/libc/sysdeps/linux/xtensa/clone.S @@ -1,34 +1,38 @@ -/* Copyright (C) 2001, 2005, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2001, 2005 Free Software Foundation, Inc. The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. + modify it under the terms of the GNU Library General Public License as + published by the Free Software Foundation; either version 2 of the + License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. + Library General Public License for more details. - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ + You should have received a copy of the GNU Library General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, + Boston, MA 02111-1307, USA. */ /* clone is even more special than fork as it mucks with stacks - and invokes a function in the right context after it's all over. */ + and invokes a function in the right context after its all over. */ -#include "sysdep.h" -#include <sys/syscall.h> +#include <features.h> +#include <sysdep.h> #define _ERRNO_H 1 #include <bits/errno.h> +#ifdef RESET_PID +#include <tls.h> +#endif +#define __ASSEMBLY__ +#include <linux/sched.h> -/* int clone (a2 = int (*fn)(void *arg), - a3 = void *child_stack, - a4 = int flags, - a5 = void *arg, - a6 = pid_t *ptid, - a7 = struct user_desc *tls, - 16(sp) = pid_t *ctid) */ +/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg, + a2 a3 a4 a5 + pid_t *ptid, struct user_desc *tls, pid_t *ctid) + a6 a7 16(sp) +*/ .text ENTRY (__clone) @@ -39,7 +43,7 @@ ENTRY (__clone) /* a2 and a3 are candidates for destruction by system-call return parameters. We don't need the stack pointer after the system - call. We trust that the kernel will preserve a7, a9, and a6. */ + call. We trust that the kernel will preserve a6, a7 and a9. */ mov a9, a5 /* save function argument */ mov a5, a7 @@ -48,19 +52,18 @@ ENTRY (__clone) mov a6, a4 mov a4, a8 l32i a8, a1, 16 /* child_tid */ - movi a2, SYS_ify (clone) - - /* syscall (a2 = NR_clone, - a6 = clone_flags, - a3 = usp, - a4 = parent_tid, - a5 = child_tls, - a8 = child_tid) */ + movi a2, SYS_ify(clone) + + /* syscall(NR_clone,clone_flags, usp, parent_tid, child_tls, child_tid) + a2 a6 a3 a4 a5 a8 + */ + syscall bltz a2, SYSCALL_ERROR_LABEL beqz a2, .Lthread_start - /* Fall through for parent. */ + /* fall through for parent */ + .Lpseudo_end: retw @@ -69,32 +72,38 @@ ENTRY (__clone) j SYSCALL_ERROR_LABEL .Lthread_start: - /* Start child thread. */ - movi a0, 0 /* terminate the stack frame */ + +#if CLONE_THREAD != 0x00010000 || CLONE_VM != 0x00000100 +# error invalid values for CLONE_THREAD or CLONE_VM +#endif #ifdef RESET_PID - /* Check and see if we need to reset the PID. */ - bbsi.l a6, 16, 1f /* CLONE_THREAD = 0x00010000 */ + bbsi.l a6, 16, .Lskip_restore_pid /* CLONE_THREAD = 0x00010000 */ movi a2, -1 - bbsi.l a6, 8, 2f /* CLONE_VM = 0x00000100 */ - movi a2, SYS_ify (getpid) + bbsi a6, 8, .Lgotpid /* CLONE_VM = 0x00000100 */ + movi a2, SYS_ify(getpid) syscall -2: rur a3, THREADPTR - movi a4, PID_OFFSET - add a4, a4, a3 - s32i a2, a4, 0 - movi a4, TID_OFFSET - add a4, a4, a3 - s32i a2, a3, 0 -1: -#endif /* RESET_PID */ - +.Lgotpid: + rur a3, threadptr + movi a0, TLS_PRE_TCB_SIZE + sub a3, a3, a0 + s32i a2, a3, PID + s32i a2, a3, TID +.Lskip_restore_pid: +#endif + + /* start child thread */ + movi a0, 0 /* terminate the stack frame */ mov a6, a9 /* load up the 'arg' parameter */ callx4 a7 /* call the user's function */ /* Call _exit. Note that any return parameter from the user's - function in a6 is seen as inputs to _exit. */ - movi a2, JUMPTARGET(_exit) + function in a6 is seen as inputs to _exit. */ +#ifdef PIC + movi a2, _exit@PLT +#else + movi a2, _exit +#endif callx4 a2 PSEUDO_END (__clone) diff --git a/libc/sysdeps/linux/xtensa/fork.c b/libc/sysdeps/linux/xtensa/fork.c index e9b681c67..4e4f937a0 100644 --- a/libc/sysdeps/linux/xtensa/fork.c +++ b/libc/sysdeps/linux/xtensa/fork.c @@ -20,6 +20,10 @@ pid_t fork(void) { return (pid_t) INLINE_SYSCALL(clone, 2, SIGCHLD, 0); } -lt_strong_alias(fork) -lt_libc_hidden(fork) +# ifdef __UCLIBC_HAS_THREADS__ +strong_alias(fork,__libc_fork) +libc_hidden_weak(fork) +# else +libc_hidden_def(fork) +# endif #endif diff --git a/libc/sysdeps/linux/xtensa/jmpbuf-unwind.h b/libc/sysdeps/linux/xtensa/jmpbuf-unwind.h index 41f81dbad..4516d9398 100644 --- a/libc/sysdeps/linux/xtensa/jmpbuf-unwind.h +++ b/libc/sysdeps/linux/xtensa/jmpbuf-unwind.h @@ -1,25 +1,23 @@ -/* Copyright (C) 1997, 1998, 2007 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -/* Test if longjmp to JMPBUF would unwind the frame containing a local - variable at ADDRESS. */ - +/* + * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org> + * + * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. + */ #include <setjmp.h> #include <jmpbuf-offsets.h> +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ #define _JMPBUF_UNWINDS(jmpbuf, address) \ ((void *) (address) < (void *) (jmpbuf)[JB_SP]) + +#ifdef __UCLIBC_HAS_THREADS_NATIVE__ +#include <stdint.h> +#include <unwind.h> + +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) + +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj)) +#endif diff --git a/libc/sysdeps/linux/xtensa/sys/ptrace.h b/libc/sysdeps/linux/xtensa/sys/ptrace.h new file mode 100644 index 000000000..882b8c8ed --- /dev/null +++ b/libc/sysdeps/linux/xtensa/sys/ptrace.h @@ -0,0 +1,155 @@ +/* `ptrace' debugger support interface. Linux version. + Copyright (C) 1996, 1997, 1998, 1999, 2000, 2007 + Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _SYS_PTRACE_H +#define _SYS_PTRACE_H 1 + +#include <features.h> + +/* Kludge away careless namespace pollution from the kernel. */ + +#undef PTRACE_GETREGS +#undef PTRACE_SETREGS +#undef PTRACE_GETFPREGS +#undef PTRACE_SETFPREGS +#undef PTRACE_GETFPREGSIZE + + +__BEGIN_DECLS + +/* Type of the REQUEST argument to `ptrace.' */ +enum __ptrace_request +{ + /* Indicate that the process making this request should be traced. + All signals received by this process can be intercepted by its + parent, and its parent can use the other `ptrace' requests. */ + PTRACE_TRACEME = 0, +#define PT_TRACE_ME PTRACE_TRACEME + + /* Return the word in the process's text space at address ADDR. */ + PTRACE_PEEKTEXT = 1, +#define PT_READ_I PTRACE_PEEKTEXT + + /* Return the word in the process's data space at address ADDR. */ + PTRACE_PEEKDATA = 2, +#define PT_READ_D PTRACE_PEEKDATA + + /* Return the word in the process's user area at offset ADDR. */ + PTRACE_PEEKUSER = 3, +#define PT_READ_U PTRACE_PEEKUSER + + /* Write the word DATA into the process's text space at address ADDR. */ + PTRACE_POKETEXT = 4, +#define PT_WRITE_I PTRACE_POKETEXT + + /* Write the word DATA into the process's data space at address ADDR. */ + PTRACE_POKEDATA = 5, +#define PT_WRITE_D PTRACE_POKEDATA + + /* Write the word DATA into the process's user area at offset ADDR. */ + PTRACE_POKEUSER = 6, +#define PT_WRITE_U PTRACE_POKEUSER + + /* Continue the process. */ + PTRACE_CONT = 7, +#define PT_CONTINUE PTRACE_CONT + + /* Kill the process. */ + PTRACE_KILL = 8, +#define PT_KILL PTRACE_KILL + + /* Single step the process. + This is not supported on all machines. */ + PTRACE_SINGLESTEP = 9, +#define PT_STEP PTRACE_SINGLESTEP + + /* Get all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETREGS = 12, +#define PT_GETREGS PTRACE_GETREGS + + /* Set all general purpose registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETREGS = 13, +#define PT_SETREGS PTRACE_SETREGS + + /* Get all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_GETFPREGS = 14, +#define PT_GETFPREGS PTRACE_GETFPREGS + + /* Set all floating point registers used by a processes. + This is not supported on all machines. */ + PTRACE_SETFPREGS = 15, +#define PT_SETFPREGS PTRACE_SETFPREGS + + /* Attach to a process that is already running. */ + PTRACE_ATTACH = 16, +#define PT_ATTACH PTRACE_ATTACH + + /* Detach from a process attached to with PTRACE_ATTACH. */ + PTRACE_DETACH = 17, +#define PT_DETACH PTRACE_DETACH + + /* Get size required for the buffer holding the floating point registers. + This is not supported on all machines. */ + PTRACE_GETFPREGSIZE = 18, +#define PT_GETFPREGSIZE PTRACE_GETFPREGSIZE + + /* Continue and stop at the next (return from) syscall. */ + PTRACE_SYSCALL = 24 +#define PT_SYSCALL PTRACE_SYSCALL +}; + +/* Options set using PTRACE_SETOPTIONS. */ +enum __ptrace_setoptions { + PTRACE_O_TRACESYSGOOD = 0x00000001, + PTRACE_O_TRACEFORK = 0x00000002, + PTRACE_O_TRACEVFORK = 0x00000004, + PTRACE_O_TRACECLONE = 0x00000008, + PTRACE_O_TRACEEXEC = 0x00000010, + PTRACE_O_TRACEVFORKDONE = 0x00000020, + PTRACE_O_TRACEEXIT = 0x00000040, + PTRACE_O_MASK = 0x0000007f +}; + +/* Wait extended result codes for the above trace options. */ +enum __ptrace_eventcodes { + PTRACE_EVENT_FORK = 1, + PTRACE_EVENT_VFORK = 2, + PTRACE_EVENT_CLONE = 3, + PTRACE_EVENT_EXEC = 4, + PTRACE_EVENT_VFORK_DONE = 5, + PTRACE_EVENT_EXIT = 6 +}; + +/* Perform process tracing functions. REQUEST is one of the values + above, and determines the action to be taken. + For all requests except PTRACE_TRACEME, PID specifies the process to be + traced. + + PID and the other arguments described above for the various requests should + appear (those that are used for the particular request) as: + pid_t PID, void *ADDR, int DATA, void *ADDR2 + after REQUEST. */ +extern long int ptrace (enum __ptrace_request __request, ...) __THROW; + +__END_DECLS + +#endif /* _SYS_PTRACE_H */ diff --git a/libc/sysdeps/linux/xtensa/sysdep.h b/libc/sysdeps/linux/xtensa/sysdep.h index afe95cc6a..cab4a2f8d 100644 --- a/libc/sysdeps/linux/xtensa/sysdep.h +++ b/libc/sysdeps/linux/xtensa/sysdep.h @@ -16,6 +16,10 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ +#ifndef _LINUX_XTENSA_SYSDEP_H +#define _LINUX_XTENSA_SYSDEP_H 1 + +#include <common/sysdep.h> #include <sys/syscall.h> #ifdef __ASSEMBLER__ @@ -24,12 +28,6 @@ #define ASM_TYPE_DIRECTIVE(name, typearg) .type name, typearg #define ASM_SIZE_DIRECTIVE(name) .size name, . - name -#ifdef __STDC__ -#define C_LABEL(name) name : -#else -#define C_LABEL(name) name/**/: -#endif - #define ENTRY(name) \ ASM_GLOBAL_DIRECTIVE C_SYMBOL_NAME(name); \ ASM_TYPE_DIRECTIVE (C_SYMBOL_NAME(name), @function); \ @@ -52,6 +50,15 @@ #undef END #define END(name) ASM_SIZE_DIRECTIVE(name) +/* Local label name for asm code. */ +#ifndef L +# ifdef HAVE_ELF +# define L(name) .L##name +# else +# define L(name) name +# endif +#endif + /* Define a macro for this directive so it can be removed in a few places. */ #define LITERAL_POSITION .literal_position @@ -123,19 +130,7 @@ #define PSEUDO_END_ERRVAL(name) \ END (name) -#undef ret_ERRVAL -#define ret_ERRVAL retw - -#if defined RTLD_PRIVATE_ERRNO -# define SYSCALL_ERROR_HANDLER \ -0: movi a4, rtld_errno; \ - neg a2, a2; \ - s32i a2, a4, 0; \ - movi a2, -1; \ - j .Lpseudo_end; - -#elif defined _LIBC_REENTRANT - +#if defined _LIBC_REENTRANT # if defined USE___THREAD # ifndef NOT_IN_libc # define SYSCALL_ERROR_ERRNO __libc_errno @@ -170,3 +165,9 @@ #endif /* _LIBC_REENTRANT */ #endif /* __ASSEMBLER__ */ + +/* Pointer mangling is not yet supported for Xtensa. */ +#define PTR_MANGLE(var) (void) (var) +#define PTR_DEMANGLE(var) (void) (var) + +#endif /* _LINUX_XTENSA_SYSDEP_H */ diff --git a/libc/sysdeps/linux/xtensa/vfork.S b/libc/sysdeps/linux/xtensa/vfork.S index f094ae38f..6aced0a50 100644 --- a/libc/sysdeps/linux/xtensa/vfork.S +++ b/libc/sysdeps/linux/xtensa/vfork.S @@ -1,4 +1,4 @@ -/* Copyright (C) 2005, 2007 Free Software Foundation, Inc. +/* Copyright (C) 2005-2013 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -19,72 +19,67 @@ #include <sys/syscall.h> #define _SIGNAL_H #include <bits/signum.h> +#define __ASSEMBLY__ +#include <linux/sched.h> -/* Clone the calling process, but without copying the whole address space. +/* + Clone the calling process, but without copying the whole address space. The calling process is suspended until the new process exits or is replaced by a call to `execve'. Return -1 for errors, 0 to the new process, and the process ID of the new process to the old process. Note that it is important that we don't create a new stack frame for the - caller. */ + caller. - -/* The following are defined in linux/sched.h, which unfortunately - is not safe for inclusion in an assembly file. */ -#define CLONE_VM 0x00000100 /* set if VM shared between processes */ -#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to - wake it up on mm_release */ +*/ #ifndef SAVE_PID -#define SAVE_PID +#define SAVE_PID(a,b,c,d) #endif - #ifndef RESTORE_PID -#define RESTORE_PID +#define RESTORE_PID(a,b,c) +#endif +#ifndef RESTORE_PID12 +#define RESTORE_PID12(a,b,c) #endif +/* + pid_t vfork(void); + Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) + */ -/* pid_t vfork(void); - Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */ HIDDEN_ENTRY (__vfork) + .literal .Ljumptable, 0, .L4, .L8, .L12 - movi a6, .Ljumptable - extui a2, a0, 30, 2 /* call-size: call4/8/12 = 1/2/3 */ - addx4 a4, a2, a6 /* find return address in jumptable */ - l32i a4, a4, 0 - add a4, a4, a6 - + mov a3, a0 # move return address out of the way + movi a0, .Ljumptable + extui a2, a3, 30, 2 # call-size: call4/8/12 = 1/2/3 + addx4 a0, a2, a0 # find return address in jumptable slli a2, a2, 30 - xor a3, a0, a2 /* remove call-size from return addr */ - extui a5, a4, 30, 2 /* get high bits of jump target */ - slli a5, a5, 30 - or a3, a3, a5 /* stuff them into the return address */ - xor a4, a4, a5 /* clear high bits of jump target */ - or a0, a4, a2 /* create temporary return address */ - retw /* "return" to .L4, .L8, or .L12 */ - - .align 4 -.Ljumptable: - .word 0 - .word .L4 - .Ljumptable - .word .L8 - .Ljumptable - .word .L12 - .Ljumptable + l32i a0, a0, 0 + + xor a3, a3, a2 # remove call-size from return address + or a0, a0, a2 # create temporary return address + retw /* a7: return address */ + .L4: mov a12, a2 mov a13, a3 - SAVE_PID + SAVE_PID(a5,a15,a2,a3) + + /* use syscall 'clone' and set new stack pointer to the same address */ - /* Use syscall 'clone'. Set new stack pointer to the same address. */ - movi a2, SYS_ify (clone) + movi a2, SYS_ify(clone) movi a3, 0 movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD + syscall - RESTORE_PID + RESTORE_PID(a5,a15,a2) movi a5, -4096 @@ -94,22 +89,24 @@ HIDDEN_ENTRY (__vfork) bgeu a6, a5, 1f jx a7 -1: call4 .Lerr /* returns to original caller */ +1: call4 .Lerr /* a11: return address */ + .L8: mov a12, a2 mov a13, a3 mov a14, a6 - SAVE_PID + SAVE_PID(a9,a15,a2,a3) - movi a2, SYS_ify (clone) + movi a2, SYS_ify(clone) movi a3, 0 movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD + syscall - RESTORE_PID + RESTORE_PID(a9,a15,a2) movi a9, -4096 @@ -120,22 +117,25 @@ HIDDEN_ENTRY (__vfork) bgeu a10, a9, 1f jx a11 -1: call8 .Lerr /* returns to original caller */ + +1: call8 .Lerr /* a15: return address */ + .L12: mov a12, a2 mov a13, a3 mov a14, a6 - SAVE_PID + SAVE_PID (a2,a3,a2,a6) - movi a2, SYS_ify (clone) + movi a2, SYS_ify(clone) movi a3, 0 movi a6, CLONE_VM | CLONE_VFORK | SIGCHLD + syscall - RESTORE_PID + RESTORE_PID12(a3,a6,a15) mov a3, a13 movi a13, -4096 @@ -147,18 +147,18 @@ HIDDEN_ENTRY (__vfork) bgeu a14, a13, 1f jx a15 -1: call12 .Lerr /* returns to original caller */ +1: call12 .Lerr .align 4 + .Lerr: entry a1, 16 - /* Restore the return address. */ - extui a4, a0, 30, 2 /* get the call-size bits */ + /* Restore return address */ + + extui a4, a0, 30, 2 slli a4, a4, 30 - slli a3, a3, 2 /* clear high bits of target address */ - srli a3, a3, 2 - or a0, a3, a4 /* combine them */ + or a0, a3, a4 PSEUDO_END (__vfork) .Lpseudo_end: diff --git a/libc/unistd/daemon.c b/libc/unistd/daemon.c index 435d4f1ff..8fa292850 100644 --- a/libc/unistd/daemon.c +++ b/libc/unistd/daemon.c @@ -69,7 +69,6 @@ /* use clone() to get fork() like behavior here -- we just want to disassociate * from the controlling terminal */ -static inline attribute_optimize("O3") pid_t _fork_parent(void) { INTERNAL_SYSCALL_DECL(err); diff --git a/libpthread/linuxthreads/Makefile.in b/libpthread/linuxthreads/Makefile.in index 4a499f78e..c1ec1c9c7 100644 --- a/libpthread/linuxthreads/Makefile.in +++ b/libpthread/linuxthreads/Makefile.in @@ -65,7 +65,7 @@ CFLAGS-OMIT-libc_pthread_init.c := $(CFLAGS-dir_linuxthreads) libpthread_libc_CSRC := \ forward.c libc-cancellation.c libc_pthread_init.c # alloca_cutoff.c libpthread_libc_OBJ := $(patsubst %.c, $(libpthread_OUT)/%.o,$(libpthread_libc_CSRC)) -libc-static-y += $(libpthread_OUT)/libc_pthread_init.o +libc-static-y += $(libpthread_OUT)/libc_pthread_init.o $(libpthread_OUT)/libc-cancellation.o libc-shared-y += $(libpthread_libc_OBJ:.o=.oS) libpthread-static-y += $(patsubst %,$(libpthread_OUT)/%.o,$(libpthread_static_SRC)) diff --git a/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c b/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c index c26a2786f..af77c2a9d 100644 --- a/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c +++ b/libpthread/linuxthreads/sysdeps/m68k/pspinlock.c @@ -27,10 +27,15 @@ __pthread_spin_lock (pthread_spinlock_t *lock) unsigned int val; do - __asm__ __volatile__ ("tas %1; sne %0" - : "=dm" (val), "=m" (*lock) - : "m" (*lock) - : "cc"); + __asm__ __volatile__ ( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif + : "=dm" (val), "=m" (*lock) + : "m" (*lock) + : "cc"); while (val); return 0; @@ -43,7 +48,12 @@ __pthread_spin_trylock (pthread_spinlock_t *lock) { unsigned int val; - __asm__ __volatile__ ("tas %1; sne %0" + __asm__ __volatile__ ( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif : "=dm" (val), "=m" (*lock) : "m" (*lock) : "cc"); diff --git a/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h b/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h index e2d7bdc81..1eb9fd57b 100644 --- a/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h +++ b/libpthread/linuxthreads/sysdeps/m68k/pt-machine.h @@ -28,12 +28,18 @@ #endif /* Spinlock implementation; required. */ +PT_EI long int testandset (int *spinlock); PT_EI long int testandset (int *spinlock) { char ret; - __asm__ __volatile__("tas %1; sne %0" + __asm__ __volatile__( +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__m68000) + "tas %1; sne %0" +#else + "bset #7,%1; sne %0" +#endif : "=dm"(ret), "=m"(*spinlock) : "m"(*spinlock) : "cc"); @@ -50,6 +56,7 @@ register char * stack_pointer __asm__ ("%sp"); /* Compare-and-swap for semaphores. */ +#if !defined(__mcoldfire__) && !defined(__mcf5200__) && !defined(__mc68000) #define HAS_COMPARE_AND_SWAP PT_EI int __compare_and_swap (long int *p, long int oldval, long int newval) @@ -63,5 +70,5 @@ __compare_and_swap (long int *p, long int oldval, long int newval) return ret; } - +#endif #endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c index 706faeff3..634c75245 100644 --- a/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c +++ b/libpthread/linuxthreads/sysdeps/pthread/herrno-loc.c @@ -16,7 +16,9 @@ <http://www.gnu.org/licenses/>. */ #include <netdb.h> +#ifdef __UCLIBC_HAS_TLS__ #include <tls.h> +#endif #include <linuxthreads/internals.h> #include <sysdep-cancel.h> diff --git a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c b/libpthread/linuxthreads/sysdeps/s390/pspinlock.c deleted file mode 100644 index be7578642..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/pspinlock.c +++ /dev/null @@ -1,90 +0,0 @@ -/* POSIX spinlock implementation. S/390 version. - Copyright (C) 2000, 2004 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#include <errno.h> -#include <pthread.h> -#include "internals.h" - -/* This implementation is similar to the one used in the Linux kernel. - But the kernel is byte instructions for the memory access. This is - faster but unusable here. The problem is that only 128 - threads/processes could use the spinlock at the same time. If (by - a design error in the program) a thread/process would hold the - spinlock for a time long enough to accumulate 128 waiting - processes, the next one will find a positive value in the spinlock - and assume it is unlocked. We cannot accept that. */ - -int -__pthread_spin_lock (pthread_spinlock_t *lock) -{ - __asm__ __volatile__(" basr 1,0\n" - "0: slr 0,0\n" - " cs 0,1,%1\n" - " jl 0b\n" - : "=m" (*lock) - : "m" (*lock) : "0", "1", "cc" ); - return 0; -} -weak_alias (__pthread_spin_lock, pthread_spin_lock) - -int -__pthread_spin_trylock (pthread_spinlock_t *lock) -{ - int oldval; - - __asm__ __volatile__(" slr %1,%1\n" - " basr 1,0\n" - "0: cs %1,1,%0" - : "=m" (*lock), "=&d" (oldval) - : "m" (*lock) : "1", "cc" ); - return oldval == 0 ? 0 : EBUSY; -} -weak_alias (__pthread_spin_trylock, pthread_spin_trylock) - - -int -__pthread_spin_unlock (pthread_spinlock_t *lock) -{ - __asm__ __volatile__(" xc 0(4,%0),0(%0)\n" - " bcr 15,0" - : : "a" (lock) : "memory" ); - return 0; -} -weak_alias (__pthread_spin_unlock, pthread_spin_unlock) - - -int -__pthread_spin_init (pthread_spinlock_t *lock, int pshared) -{ - /* We can ignore the `pshared' parameter. Since we are busy-waiting - all processes which can access the memory location `lock' points - to can use the spinlock. */ - *lock = 0; - return 0; -} -weak_alias (__pthread_spin_init, pthread_spin_init) - - -int -__pthread_spin_destroy (pthread_spinlock_t *lock) -{ - /* Nothing to do. */ - return 0; -} -weak_alias (__pthread_spin_destroy, pthread_spin_destroy) diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h deleted file mode 100644 index 51505a97d..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/s390-32/pt-machine.h +++ /dev/null @@ -1,119 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - S390 version. - Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI __extern_always_inline -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "cc"); - - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("15"); - -#ifdef __UCLIBC_HAS_TLS__ -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - S/390 registers uses access register 0 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ ("ear %0,%%a0" : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ ("sar %%a0,%0" : : "d" (descr) ); \ -}) -#endif - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap(long int *p, long int oldval, long int newval) -{ - int retval; - - __asm__ __volatile__( - " la 1,%1\n" - " lr 0,%2\n" - " cs 0,%3,0(1)\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0", "1" ); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h b/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h deleted file mode 100644 index 4bff85aec..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/s390-64/pt-machine.h +++ /dev/null @@ -1,124 +0,0 @@ -/* Machine-dependent pthreads configuration and inline functions. - 64 bit S/390 version. - Copyright (C) 2001, 2002, 2003 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public License as - published by the Free Software Foundation; either version 2.1 of the - License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If - not, see <http://www.gnu.org/licenses/>. */ - -#ifndef _PT_MACHINE_H -#define _PT_MACHINE_H 1 - -#ifndef PT_EI -# define PT_EI __extern_always_inline -#endif - -extern long int testandset (int *spinlock); -extern int __compare_and_swap (long int *p, long int oldval, long int newval); - -/* For multiprocessor systems, we want to ensure all memory accesses - are completed before we reset a lock. On other systems, we still - need to make sure that the compiler has flushed everything to memory. */ -#define MEMORY_BARRIER() __asm__ __volatile__ ("bcr 15,0" : : : "memory") - -/* Spinlock implementation; required. */ -PT_EI long int -testandset (int *spinlock) -{ - int ret; - - __asm__ __volatile__( - " la 1,%1\n" - " lhi 0,1\n" - " l %0,%1\n" - "0: cs %0,0,0(1)\n" - " jl 0b" - : "=&d" (ret), "+m" (*spinlock) - : : "0", "1", "cc"); - - return ret; -} - - -/* Get some notion of the current stack. Need not be exactly the top - of the stack, just something somewhere in the current frame. */ -#define CURRENT_STACK_FRAME stack_pointer -register char * stack_pointer __asm__ ("15"); - -#ifdef __UCLIBC_HAS_TLS__ -/* Return the thread descriptor for the current thread. */ -# define THREAD_SELF ((pthread_descr) __builtin_thread_pointer ()) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) __builtin_set_thread_pointer (descr) -#else -/* Return the thread descriptor for the current thread. - 64 bit S/390 uses access register 0 and 1 as "thread register". */ -#define THREAD_SELF ({ \ - register pthread_descr __self; \ - __asm__ (" ear %0,%%a0\n" \ - " sllg %0,%0,32\n" \ - " ear %0,%%a1\n" \ - : "=d" (__self) ); \ - __self; \ -}) - -/* Initialize the thread-unique value. */ -#define INIT_THREAD_SELF(descr, nr) ({ \ - __asm__ (" sar %%a1,%0\n" \ - " srlg 0,%0,32\n" \ - " sar %%a0,0\n" \ - : : "d" (descr) : "0" ); \ -}) -#endif - -/* Access to data in the thread descriptor is easy. */ -#define THREAD_GETMEM(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_GETMEM_NC(descr, member) \ - ((void) sizeof (descr), THREAD_SELF->member) -#define THREAD_SETMEM(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) -#define THREAD_SETMEM_NC(descr, member, value) \ - ((void) sizeof (descr), THREAD_SELF->member = (value)) - -/* We want the OS to assign stack addresses. */ -#define FLOATING_STACKS 1 - -/* Maximum size of the stack if the rlimit is unlimited. */ -#define ARCH_STACK_MAX_SIZE 8*1024*1024 - -/* Compare-and-swap for semaphores. */ - -#define HAS_COMPARE_AND_SWAP - -PT_EI int -__compare_and_swap(long int *p, long int oldval, long int newval) -{ - int retval; - - __asm__ __volatile__( - " lgr 0,%2\n" - " csg 0,%3,%1\n" - " ipm %0\n" - " srl %0,28\n" - "0:" - : "=&d" (retval), "+m" (*p) - : "d" (oldval) , "d" (newval) - : "cc", "0"); - return retval == 0; -} - -#endif /* pt-machine.h */ diff --git a/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym b/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym deleted file mode 100644 index aee6be257..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/tcb-offsets.sym +++ /dev/null @@ -1,4 +0,0 @@ -#include <sysdep.h> -#include <tls.h> - -MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) diff --git a/libpthread/linuxthreads/sysdeps/s390/tls.h b/libpthread/linuxthreads/sysdeps/s390/tls.h deleted file mode 100644 index d987bdbc2..000000000 --- a/libpthread/linuxthreads/sysdeps/s390/tls.h +++ /dev/null @@ -1,144 +0,0 @@ -/* Definitions for thread-local data handling. linuxthreads/s390 version. - Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _TLS_H -#define _TLS_H - -#ifndef __ASSEMBLER__ - -# include <pt-machine.h> -# include <stdbool.h> -# include <stddef.h> - -/* Type for the dtv. */ -typedef union dtv -{ - size_t counter; - struct - { - void *val; - bool is_static; - } pointer; -} dtv_t; - -typedef struct -{ - void *tcb; /* Pointer to the TCB. Not necessary the - thread descriptor used by libpthread. */ - dtv_t *dtv; - void *self; /* Pointer to the thread descriptor. */ - int multiple_threads; -} tcbhead_t; - -#else /* __ASSEMBLER__ */ -# include <tcb-offsets.h> -#endif /* __ASSEMBLER__ */ - -/* TLS is always supported if the tools support it. There are no - kernel dependencies. To avoid bothering with the TLS support code - at all, use configure --without-tls. - - We need USE_TLS to be consistently defined, for ldsodefs.h - conditionals. */ - -#ifdef HAVE_TLS_SUPPORT - -/* Signal that TLS support is available. */ -# define USE_TLS 1 - -# ifndef __ASSEMBLER__ -/* Get system call information. */ -# include <sysdep.h> - - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -/* This is the size of the initial TCB. */ -# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) - -/* Alignment requirements for the initial TCB. */ -# define TLS_INIT_TCB_ALIGN __alignof__ (tcbhead_t) - -/* This is the size of the TCB. */ -# define TLS_TCB_SIZE sizeof (struct _pthread_descr_struct) - -/* Alignment requirements for the TCB. */ -# define TLS_TCB_ALIGN __alignof__ (struct _pthread_descr_struct) - -/* The TCB can have any size and the memory following the address the - thread pointer points to is unspecified. Allocate the TCB there. */ -# define TLS_TCB_AT_TP 1 - - -/* Install the dtv pointer. The pointer passed is to the element with - index -1 which contain the length. */ -# define INSTALL_DTV(descr, dtvp) \ - ((tcbhead_t *) (descr))->dtv = (dtvp) + 1 - -/* Install new dtv for current thread. */ -# define INSTALL_NEW_DTV(dtv) \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv = (dtv)) - -/* Return dtv of given thread descriptor. */ -# define GET_DTV(descr) \ - (((tcbhead_t *) (descr))->dtv) - -/* Code to initially initialize the thread pointer. This might need - special attention since 'errno' is not yet available and if the - operation can cause a failure 'errno' must not be touched. - - The value of this macro is null if successful, or an error string. */ -# define TLS_INIT_TP(descr, secondcall) \ - ({ \ - void *_descr = (descr); \ - tcbhead_t *head = _descr; \ - \ - head->tcb = _descr; \ - /* For now the thread descriptor is at the same address. */ \ - head->self = _descr; \ - \ - __builtin_set_thread_pointer (_descr); \ - NULL; \ - }) - -/* Return the address of the dtv for the current thread. */ -# define THREAD_DTV() \ - (((tcbhead_t *) __builtin_thread_pointer ())->dtv) - -# endif /* __ASSEMBLER__ */ - -#else /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -# ifndef __ASSEMBLER__ - -/* Get the thread descriptor definition. */ -# include <linuxthreads/descr.h> - -# define NONTLS_INIT_TP \ - do { \ - static const tcbhead_t nontls_init_tp \ - = { .multiple_threads = 0 }; \ - INIT_THREAD_SELF (&nontls_init_tp, 0); \ - } while (0) - -# endif /* __ASSEMBLER__ */ - -#endif /* HAVE_TLS_SUPPORT && (FLOATING_STACKS || !IS_IN_libpthread) */ - -#endif /* tls.h */ diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h deleted file mode 100644 index 6b588257d..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/bits/typesizes.h +++ /dev/null @@ -1,71 +0,0 @@ -/* bits/typesizes.h -- underlying types for *_t. Linux/s390 version. - Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#ifndef _BITS_TYPES_H -# error "Never include <bits/typesizes.h> directly; use <sys/types.h> instead." -#endif - -#ifndef _BITS_TYPESIZES_H -#define _BITS_TYPESIZES_H 1 - -/* See <bits/types.h> for the meaning of these macros. This file exists so - that <bits/types.h> need not vary across different GNU platforms. */ - -#define __DEV_T_TYPE __UQUAD_TYPE -#define __UID_T_TYPE __U32_TYPE -#define __GID_T_TYPE __U32_TYPE -#define __INO_T_TYPE __ULONGWORD_TYPE -#define __INO64_T_TYPE __UQUAD_TYPE -#define __MODE_T_TYPE __U32_TYPE -#define __NLINK_T_TYPE __UWORD_TYPE -#define __OFF_T_TYPE __SLONGWORD_TYPE -#define __OFF64_T_TYPE __SQUAD_TYPE -#define __PID_T_TYPE __S32_TYPE -#define __RLIM_T_TYPE __ULONGWORD_TYPE -#define __RLIM64_T_TYPE __UQUAD_TYPE -#define __BLKCNT_T_TYPE __SLONGWORD_TYPE -#define __BLKCNT64_T_TYPE __SQUAD_TYPE -#define __FSBLKCNT_T_TYPE __ULONGWORD_TYPE -#define __FSBLKCNT64_T_TYPE __UQUAD_TYPE -#define __FSFILCNT_T_TYPE __ULONGWORD_TYPE -#define __FSFILCNT64_T_TYPE __UQUAD_TYPE -#define __ID_T_TYPE __U32_TYPE -#define __CLOCK_T_TYPE __SLONGWORD_TYPE -#define __TIME_T_TYPE __SLONGWORD_TYPE -#define __USECONDS_T_TYPE __U32_TYPE -#define __SUSECONDS_T_TYPE __SLONGWORD_TYPE -#define __DADDR_T_TYPE __S32_TYPE -#define __SWBLK_T_TYPE __SLONGWORD_TYPE -#define __KEY_T_TYPE __S32_TYPE -#define __CLOCKID_T_TYPE __S32_TYPE -#define __TIMER_T_TYPE __S32_TYPE -#define __BLKSIZE_T_TYPE __SLONGWORD_TYPE -#define __FSID_T_TYPE struct { int __val[2]; } -#if defined __GNUC__ && __GNUC__ <= 2 -/* Compatibility with g++ 2.95.x. */ -#define __SSIZE_T_TYPE __SWORD_TYPE -#else -/* size_t is unsigned long int on s390 -m31. */ -#define __SSIZE_T_TYPE __SLONGWORD_TYPE -#endif - -/* Number of descriptors that can fit in an `fd_set'. */ -#define __FD_SETSIZE 1024 - - -#endif /* bits/typesizes.h */ diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c deleted file mode 100644 index cde418307..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/pt-initfini.c +++ /dev/null @@ -1,153 +0,0 @@ -/* Special .init and .fini section support for S/390. - Copyright (C) 2000, 2001 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - see <http://www.gnu.org/licenses/>. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN1_0\n\ -.LT1_0:\n\ -.LC13:\n\ - .long __pthread_initialize_minimal@PLT-.LT1_0\n\ -.LC14:\n\ - .long __gmon_start__@GOT\n\ -.LC15:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT1_0\n\ -.LTN1_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC15-.LT1_0(13)\n\ - AR 12,13\n\ - L 1,.LC13-.LT1_0(13)\n\ - LA 1,0(1,13)\n\ - BASR 14,1\n\ - L 1,.LC14-.LT1_0(13)\n\ - L 1,0(1,12)\n\ - LTR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STM 6,15,24(15)\n\ - BRAS 13,.LTN2_0\n\ -.LT2_0:\n\ -.LC17:\n\ - .long _GLOBAL_OFFSET_TABLE_-.LT2_0\n\ -.LTN2_0:\n\ - LR 1,15\n\ - AHI 15,-96\n\ - ST 1,0(15)\n\ - L 12,.LC17-.LT2_0(13)\n\ - AR 12,13\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - L 4,152(15)\n\ - LM 6,15,120(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\ -"); diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h deleted file mode 100644 index 2431129e5..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h +++ /dev/null @@ -1,136 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# if !defined NOT_IN_libc || defined IS_IN_libpthread - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r12,%r15,48(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r1,1f-0b(%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r12,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r12; \ - lm %r12,%r15,48+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE-0b; \ -2: .long CDISABLE-0b; - -# else /* !libc.so && !libpthread.so */ - -# define PSEUDO_CANCEL(name, syscall_name, args) \ -L(pseudo_cancel): \ - STM_##args \ - stm %r11,%r15,44(%r15); \ - lr %r14,%r15; \ - ahi %r15,-96; \ - st %r14,0(%r15); \ - basr %r13,0; \ -0: l %r12,3f-0b(%r13); \ - l %r1,1f-0b(%r13); \ - la %r12,0(%r12,%r13); \ - bas %r14,0(%r1,%r13); \ - lr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - l %r1,2f-0b(%r13); \ - lr %r11,%r2; \ - lr %r2,%r0; \ - bas %r14,0(%r1,%r13); \ - lr %r2,%r11; \ - lm %r11,%r15,44+96(%r15); \ - j L(pseudo_check); \ -1: .long CENABLE@PLT-0b; \ -2: .long CDISABLE@PLT-0b; \ -3: .long _GLOBAL_OFFSET_TABLE_-0b; - -# endif - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -PSEUDO_CANCEL(name, syscall_name, args) \ -ENTRY(name) \ - SINGLE_THREAD_P(%r1) \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lhi %r4,-4095; \ - clr %r2,%r4; \ - jnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# else -# define CENABLE __librt_enable_asynccancel -# define CDISABLE __librt_disable_asynccancel -# endif - -#define STM_0 /* Nothing */ -#define STM_1 st %r2,8(%r15); -#define STM_2 stm %r2,%r3,8(%r15); -#define STM_3 stm %r2,%r4,8(%r15); -#define STM_4 stm %r2,%r5,8(%r15); -#define STM_5 stm %r2,%r5,8(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 l %r2,8+96(%r15); -#define LM_2 lm %r2,%r3,8+96(%r15); -#define LM_3 lm %r2,%r4,8+96(%r15); -#define LM_4 lm %r2,%r5,8+96(%r15); -#define LM_5 lm %r2,%r5,8+96(%r15); - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P(reg) \ - ear reg,%a0; \ - icm reg,15,MULTIPLE_THREADS_OFFSET(reg); -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S deleted file mode 100644 index 078c730fd..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-32/vfork.S +++ /dev/null @@ -1,68 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - basr %r1,0 -0: -#ifdef SHARED - al %r1,4f-0b(%r1) - l %r1,0(%r1) - ltr %r1,%r1 -#else - icm %r1,15,4f-0b(%r1) -#endif - jne 1f - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lhi %r4,-4095 - clr %r2,%r4 - jnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -1: - basr %r1,0 -2: - al %r1,3f-2b(%r1) - br %r1 -3: - .long HIDDEN_JUMPTARGET(fork)-2b -4: -#ifdef SHARED - .long __libc_pthread_functions-0b -#else - .weak pthread_create - .long pthread_create -#endif -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c deleted file mode 100644 index 136ce5442..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-initfini.c +++ /dev/null @@ -1,136 +0,0 @@ -/* Special .init and .fini section support for 64 bit S/390. - Copyright (C) 2001 Free Software Foundation, Inc. - Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com). - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it - and/or modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - In addition to the permissions in the GNU Lesser General Public - License, the Free Software Foundation gives you unlimited - permission to link the compiled version of this file with other - programs, and to distribute those programs without any restriction - coming from the use of this file. (The Lesser General Public - License restrictions do apply in other respects; for example, they - cover modification of the file, and distribution when not linked - into another program.) - - The GNU C Library is distributed in the hope that it will be - useful, but WITHOUT ANY WARRANTY; without even the implied warranty - of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - see <http://www.gnu.org/licenses/>. */ - -/* This file is compiled into assembly code which is then munged by a sed - script into two files: crti.s and crtn.s. - - * crti.s puts a function prologue at the beginning of the - .init and .fini sections and defines global symbols for - those addresses, so they can be called as functions. - - * crtn.s puts the corresponding function epilogues - in the .init and .fini sections. */ - -__asm__ ("\ -\n\ -#include \"defs.h\"\n\ -\n\ -/*@HEADER_ENDS*/\n\ -\n\ -/*@TESTS_BEGIN*/\n\ -\n\ -/*@TESTS_END*/\n\ -\n\ -/*@_init_PROLOG_BEGINS*/\n\ -\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ -.globl _init\n\ - .type _init,@function\n\ -_init:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 36\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ - BRASL 14,__pthread_initialize_minimal@PLT\n\ - LARL 1,__gmon_start__@GOTENT\n\ - LG 1,0(1)\n\ - LTGR 1,1\n\ - JE .L22\n\ - BASR 14,1\n\ -.L22:\n\ -#APP\n\ - .align 4,0x07\n\ - END_INIT\n\ -\n\ -/*@_init_PROLOG_ENDS*/\n\ -\n\ -/*@_init_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .init\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_INIT\n\ -\n\ -/*@_init_EPILOG_ENDS*/\n\ -\n\ -/*@_fini_PROLOG_BEGINS*/\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ -.globl _fini\n\ - .type _fini,@function\n\ -_fini:\n\ -# leaf function 0\n\ -# automatics 0\n\ -# outgoing args 0\n\ -# need frame pointer 0\n\ -# call alloca 0\n\ -# has varargs 0\n\ -# incoming args (stack) 0\n\ -# function length 30\n\ - STMG 6,15,48(15)\n\ - LGR 1,15\n\ - AGHI 15,-160\n\ - STG 1,0(15)\n\ - LARL 12,_GLOBAL_OFFSET_TABLE_\n\ -#APP\n\ - .align 4,0x07\n\ - END_FINI\n\ -\n\ -/*@_fini_PROLOG_ENDS*/\n\ -\n\ -/*@_fini_EPILOG_BEGINS*/\n\ - .align 4\n\ - .section .fini\n\ -#NO_APP\n\ - .align 4\n\ - LG 4,272(15)\n\ - LMG 6,15,208(15)\n\ - BR 4\n\ -#APP\n\ - END_FINI\n\ -\n\ -/*@_fini_EPILOG_ENDS*/\n\ -\n\ -/*@TRAILER_BEGINS*/\n\ - "); diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c deleted file mode 100644 index d57283ad2..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/pt-sigsuspend.c +++ /dev/null @@ -1 +0,0 @@ -#include "../../ia64/pt-sigsuspend.c" diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h deleted file mode 100644 index cf3124ebb..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h +++ /dev/null @@ -1,115 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2003. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#include <tls.h> -#ifndef __ASSEMBLER__ -# include <linuxthreads/internals.h> -#endif - -#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt - -# undef PSEUDO -# define PSEUDO(name, syscall_name, args) \ - .text; \ -L(pseudo_cancel): \ - STM_##args \ - stmg %r13,%r15,104(%r15); \ - lgr %r14,%r15; \ - aghi %r15,-160; \ - stg %r14,0(%r15); \ - brasl %r14,CENABLE; \ - lgr %r0,%r2; \ - LM_##args \ - DO_CALL(syscall_name, args); \ - lgr %r13,%r2; \ - lgr %r2,%r0; \ - brasl %r14,CDISABLE; \ - lgr %r2,%r13; \ - lmg %r13,%r15,104+160(%r15); \ - j L(pseudo_check); \ -ENTRY(name) \ - SINGLE_THREAD_P \ - jne L(pseudo_cancel); \ - DO_CALL(syscall_name, args); \ -L(pseudo_check): \ - lghi %r4,-4095; \ - clgr %r2,%r4; \ - jgnl SYSCALL_ERROR_LABEL; \ -L(pseudo_end): - -# ifdef IS_IN_libpthread -# define CENABLE __pthread_enable_asynccancel -# define CDISABLE __pthread_disable_asynccancel -# define __local_multiple_threads __pthread_multiple_threads -# elif !defined NOT_IN_libc -# define CENABLE __libc_enable_asynccancel -# define CDISABLE __libc_disable_asynccancel -# define __local_multiple_threads __libc_multiple_threads -# else -# define CENABLE __librt_enable_asynccancel@PLT -# define CDISABLE __librt_disable_asynccancel@PLT -# endif - -#define STM_0 /* Nothing */ -#define STM_1 stg %r2,16(%r15); -#define STM_2 stmg %r2,%r3,16(%r15); -#define STM_3 stmg %r2,%r4,16(%r15); -#define STM_4 stmg %r2,%r5,16(%r15); -#define STM_5 stmg %r2,%r5,16(%r15); - -#define LM_0 /* Nothing */ -#define LM_1 lg %r2,16+160(%r15); -#define LM_2 lmg %r2,%r3,16+160(%r15); -#define LM_3 lmg %r2,%r4,16+160(%r15); -#define LM_4 lmg %r2,%r5,16+160(%r15); -#define LM_5 lmg %r2,%r5,16+160(%r15); - -# if !defined NOT_IN_libc || defined IS_IN_libpthread -# ifndef __ASSEMBLER__ -extern int __local_multiple_threads attribute_hidden; -# define SINGLE_THREAD_P \ - __builtin_expect (__local_multiple_threads == 0, 1) -# else -# define SINGLE_THREAD_P \ - larl %r1,__local_multiple_threads; \ - icm %r0,15,0(%r1); -# endif - -# else - -# ifndef __ASSEMBLER__ -# define SINGLE_THREAD_P \ - __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ - p_header.data.multiple_threads) == 0, 1) -# else -# define SINGLE_THREAD_P \ - ear %r1,%a0; \ - sllg %r1,%r1,32; \ - ear %r1,%a1; \ - icm %r1,15,MULTIPLE_THREADS_OFFSET(%r1); -# endif - -# endif - -#elif !defined __ASSEMBLER__ - -/* This code should never be used but we define it anyhow. */ -# define SINGLE_THREAD_P (1) - -#endif diff --git a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S b/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S deleted file mode 100644 index 109d4f6dc..000000000 --- a/libpthread/linuxthreads/sysdeps/unix/sysv/linux/s390/s390-64/vfork.S +++ /dev/null @@ -1,53 +0,0 @@ -/* Copyright (C) 2003 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Martin Schwidefsky <schwidefsky@de.ibm.com> - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep-cancel.h> -#define _ERRNO_H 1 -#include <bits/errno.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) -#ifdef SHARED - larl %r1,__libc_pthread_functions - lg %r1,0(%r1) -#else - .weak pthread_create - larl %r1,pthread_create -#endif - ltgr %r1,%r1 - jgne HIDDEN_JUMPTARGET(fork) - - /* Do vfork system call. */ - svc SYS_ify (vfork) - - /* Check for error. */ - lghi %r4,-4095 - clgr %r2,%r4 - jgnl SYSCALL_ERROR_LABEL - - /* Normal return. */ - br %r14 -PSEUDO_END(__vfork) - -libc_hidden_def (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch index 8e3c7b0bc..3b9db6a61 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c lowlevellock.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S deleted file mode 100644 index f222dca43..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arc/pt-vfork.S +++ /dev/null @@ -1,7 +0,0 @@ -/* - * Copyright (C) 2013 Synopsys, Inc. (www.synopsys.com) - * - * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. - */ - -#include "vfork.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch index 3a3259884..861ae9e64 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c \ lowlevellock.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S deleted file mode 100644 index df18f0304..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/arm/pt-vfork.S +++ /dev/null @@ -1,37 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <tcb-offsets.h> - -/* Save the PID value. */ -#define SAVE_PID \ - str lr, [sp, #-4]!; /* Save LR. */ \ - mov r0, #0xffff0fff; /* Point to the high page. */ \ - mov lr, pc; /* Save our return address. */ \ - sub pc, r0, #31; /* Jump to the TLS entry. */ \ - ldr lr, [sp], #4; /* Restore LR. */ \ - mov r2, r0; /* Save the TLS addr in r2. */ \ - ldr r3, [r2, #PID_OFFSET]; /* Load the saved PID. */ \ - rsb r0, r3, #0; /* Negate it. */ \ - str r0, [r2, #PID_OFFSET] /* Store the temporary PID. */ - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - cmp r0, #0; /* If we are the parent... */ \ - strne r3, [r2, #PID_OFFSET] /* ... restore the saved PID. */ - -#include "../../../../../../../libc/sysdeps/linux/arm/vfork.S" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch index fff0dae89..9dc878c4c 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S pthread_spin_unlock.S pthread_once.S +libpthread_linux_arch_SSRC = clone.S pthread_spin_unlock.S pthread_once.S libpthread_linux_arch_CSRC = pthread_spin_init.c pt-__syscall_error.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S deleted file mode 100644 index 5bba782df..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/i386/pt-vfork.S +++ /dev/null @@ -1,67 +0,0 @@ -/* Copyright (C) 1999, 2002, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Andreas Schwab <schwab@gnu.org>. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> - -/* Save the PID value. */ -#define SAVE_PID \ - movl %gs:PID, %edx; \ - movl %edx, %eax; \ - negl %eax; \ - movl %eax, %gs:PID - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - testl %eax, %eax; \ - je 1f; \ - movl %edx, %gs:PID; \ -1: - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - /* Pop the return PC value into ECX. */ - popl %ecx - - SAVE_PID - - /* Stuff the syscall number in EAX and enter into the kernel. */ - movl $SYS_ify (vfork), %eax - int $0x80 - - RESTORE_PID - - /* Jump to the return PC. Don't jump directly since this - disturbs the branch target cache. Instead push the return - address back on the stack. */ - pushl %ecx - - cmpl $-4095, %eax - jae SYSCALL_ERROR_LABEL /* Branch forward if it failed. */ -L(pseudo_end): - ret -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c b/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c index 2a5bf6dd9..75369bd70 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.c @@ -22,8 +22,6 @@ #include <lowlevellock.h> #include <sys/time.h> #include <tls.h> -#include <tcb-offsets.h> - void #ifndef IS_IN_libpthread diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch index 4d02d0c9a..ddc768085 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/metag/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c \ pt-__syscall_rt_sigaction.c pt-__syscall_error.c \ lowlevellock.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch index 4a3d0f248..f87dedca4 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S +libpthread_linux_arch_SSRC = clone.S libpthread_linux_arch_CSRC = pthread_once.c pt-__syscall_rt_sigaction.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S deleted file mode 100644 index 52fbde337..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/mips/pt-vfork.S +++ /dev/null @@ -1,37 +0,0 @@ -/* Copyright (C) 2005 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <features.h> -#include <tls.h> - -/* Save the PID value. */ -#define SAVE_PID \ - READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ - lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ - subu a2, $0, a2; /* Negate it. */ \ - sw a2, PID_OFFSET(v1); /* Store the temporary PID. */ - -/* Restore the old PID value in the parent. */ -#define RESTORE_PID \ - beqz v0, 1f; /* If we are the parent... */ \ - READ_THREAD_POINTER(v1); /* Get the thread pointer. */ \ - lw a2, PID_OFFSET(v1); /* Load the saved PID. */ \ - subu a2, $0, a2; /* Re-negate it. */ \ - sw a2, PID_OFFSET(v1); /* Restore the PID. */ \ -1: - -#include <../../../../../../../libc/sysdeps/linux/mips/vfork.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch index 21b9b7239..df4bb6963 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S +libpthread_linux_arch_SSRC = libpthread_linux_arch_CSRC = pthread_once.c pt-__syscall_error.c libc_linux_arch_CSRC = fork.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S deleted file mode 100644 index 12e47b39c..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc64/pt-vfork.S +++ /dev/null @@ -1,48 +0,0 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - lwz 0,PID(13) - neg 0,0 - stw 0,PID(13) - - DO_CALL (SYS_ify (vfork)) - - cmpwi 1,3,0 - beqlr- 1 - - lwz 0,PID(13) - neg 0,0 - stw 0,PID(13) - - PSEUDO_RET - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S deleted file mode 100644 index 0225219d9..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/pt-vfork.S +++ /dev/null @@ -1,5 +0,0 @@ -#if defined __powerpc64__ -# include "powerpc64/pt-vfork.S" -#else -# include "powerpc32/pt-vfork.S" -#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch index 154dd6e66..908d9e15d 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S pthread_once.S pthread_rwlock_wrlock.S \ +libpthread_linux_arch_SSRC = pthread_once.S pthread_rwlock_wrlock.S \ pthread_rwlock_rdlock.S pthread_rwlock_unlock.S \ lowlevellock.S lowlevelrobustlock.S pthread_barrier_wait.S \ pthread_cond_broadcast.S pthread_cond_signal.S \ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S deleted file mode 100644 index 56aa6d0af..000000000 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sh/pt-vfork.S +++ /dev/null @@ -1,64 +0,0 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. - This file is part of the GNU C Library. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - <http://www.gnu.org/licenses/>. */ - -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <tcb-offsets.h> - -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ - -ENTRY (__vfork) - /* Save the PID value. */ - stc gbr, r2 - mov.w .L2, r0 - mov.l @(r0,r2), r4 - neg r4, r1 - mov.l r1, @(r0,r2) - - mov.w .L1, r3 - trapa #0x10 - mov r0, r1 - - /* Restore the old PID value in the parent. */ - tst r0, r0 - bt/s 2f - stc gbr, r2 - mov.w .L2, r0 - mov.l r4, @(r0,r2) - mov r1, r0 -2: - mov #-12, r2 - shad r2, r1 - not r1, r1 // r1=0 means r0 = -1 to -4095 - tst r1, r1 // i.e. error in linux - bf .Lpseudo_end - SYSCALL_ERROR_HANDLER -.Lpseudo_end: - rts - nop -.L1: - .word __NR_vfork -.L2: - .word PID - TLS_PRE_TCB_SIZE - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch index 2b2b5f579..01a9e879a 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/sparc/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S +libpthread_linux_arch_SSRC = clone.S libpthread_linux_arch_CSRC = pthread_once.c lowlevellock.c \ pthread_barrier_init.c pthread_barrier_wait.c pthread_barrier_destroy.c \ pt-__syscall_error.c diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch index ebd506047..af1416485 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/Makefile.arch @@ -5,7 +5,7 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. # -libpthread_linux_arch_SSRC = pt-vfork.S clone.S pthread_once.S \ +libpthread_linux_arch_SSRC = clone.S pthread_once.S \ lowlevellock.S pthread_barrier_wait.S pthread_cond_signal.S pthread_cond_broadcast.S \ sem_post.S sem_timedwait.S lowlevelrobustlock.S \ sem_trywait.S sem_wait.S pthread_rwlock_rdlock.S pthread_rwlock_wrlock.S \ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch new file mode 100644 index 000000000..8ebe28773 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/Makefile.arch @@ -0,0 +1,15 @@ +# uClibc-ng project +# Licensed under the LGPL v2.1, see the file COPYING and LICENSE. + +libc_linux_arch_CSRC = fork.c +libc_linux_arch_SSRC = clone.S vfork.S +libpthread_linux_arch_CSRC = pthread_once.c +libpthread_linux_arch_SSRC = + +CFLAGS-OMIT-fork.c = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-pt-vfork.S = -DNOT_IN_libc -DIS_IN_libpthread -D_LIBC_REENTRANT + +ASFLAGS-clone.S = -D_LIBC_REENTRANT +ASFLAGS-vfork.S = -D_LIBC_REENTRANT +ASFLAGS-syscall.S = -D_LIBC_REENTRANT +ASFLAGS-mmap.S = -D_LIBC_REENTRANT diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h new file mode 100644 index 000000000..5e4402088 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/pthreadtypes.h @@ -0,0 +1,184 @@ +/* Copyright (C) 2002-2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _BITS_PTHREADTYPES_H +#define _BITS_PTHREADTYPES_H 1 + +#include <endian.h> + +#define __SIZEOF_PTHREAD_ATTR_T 36 +#define __SIZEOF_PTHREAD_MUTEX_T 24 +#define __SIZEOF_PTHREAD_MUTEXATTR_T 4 +#define __SIZEOF_PTHREAD_COND_T 48 +#define __SIZEOF_PTHREAD_COND_COMPAT_T 12 +#define __SIZEOF_PTHREAD_CONDATTR_T 4 +#define __SIZEOF_PTHREAD_RWLOCK_T 32 +#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8 +#define __SIZEOF_PTHREAD_BARRIER_T 20 +#define __SIZEOF_PTHREAD_BARRIERATTR_T 4 + + +/* Thread identifiers. The structure of the attribute type is not + exposed on purpose. */ +typedef unsigned long int pthread_t; + + +union pthread_attr_t +{ + char __size[__SIZEOF_PTHREAD_ATTR_T]; + long int __align; +}; +#ifndef __have_pthread_attr_t +typedef union pthread_attr_t pthread_attr_t; +# define __have_pthread_attr_t 1 +#endif + + +typedef struct __pthread_internal_slist +{ + struct __pthread_internal_slist *__next; +} __pthread_slist_t; + + +/* Data structures for mutex handling. The structure of the attribute + type is not exposed on purpose. */ +typedef union +{ + struct __pthread_mutex_s + { + int __lock; + unsigned int __count; + int __owner; + /* KIND must stay at this position in the structure to maintain + binary compatibility. */ + int __kind; + unsigned int __nusers; + __extension__ union + { + int __spins; + __pthread_slist_t __list; + }; + } __data; + char __size[__SIZEOF_PTHREAD_MUTEX_T]; + long int __align; +} pthread_mutex_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_MUTEXATTR_T]; + long int __align; +} pthread_mutexattr_t; + + +/* Data structure for conditional variable handling. The structure of + the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __futex; + __extension__ unsigned long long int __total_seq; + __extension__ unsigned long long int __wakeup_seq; + __extension__ unsigned long long int __woken_seq; + void *__mutex; + unsigned int __nwaiters; + unsigned int __broadcast_seq; + } __data; + char __size[__SIZEOF_PTHREAD_COND_T]; + __extension__ long long int __align; +} pthread_cond_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_CONDATTR_T]; + long int __align; +} pthread_condattr_t; + + +/* Keys for thread-specific data */ +typedef unsigned int pthread_key_t; + + +/* Once-only execution */ +typedef int pthread_once_t; + + +#if defined __USE_UNIX98 || defined __USE_XOPEN2K +/* Data structure for read-write lock variable handling. The + structure of the attribute type is not exposed on purpose. */ +typedef union +{ + struct + { + int __lock; + unsigned int __nr_readers; + unsigned int __readers_wakeup; + unsigned int __writer_wakeup; + unsigned int __nr_readers_queued; + unsigned int __nr_writers_queued; +#if __BYTE_ORDER == __BIG_ENDIAN + unsigned char __pad1; + unsigned char __pad2; + unsigned char __shared; + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; +#else + /* FLAGS must stay at this position in the structure to maintain + binary compatibility. */ + unsigned char __flags; + unsigned char __shared; + unsigned char __pad1; + unsigned char __pad2; +#endif + int __writer; + } __data; + char __size[__SIZEOF_PTHREAD_RWLOCK_T]; + long int __align; +} pthread_rwlock_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_RWLOCKATTR_T]; + long int __align; +} pthread_rwlockattr_t; +#endif + + +#ifdef __USE_XOPEN2K +/* POSIX spinlock data type. */ +typedef volatile int pthread_spinlock_t; + + +/* POSIX barriers data type. The structure of the type is + deliberately not exposed. */ +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIER_T]; + long int __align; +} pthread_barrier_t; + +typedef union +{ + char __size[__SIZEOF_PTHREAD_BARRIERATTR_T]; + int __align; +} pthread_barrierattr_t; +#endif + + +#endif /* bits/pthreadtypes.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h new file mode 100644 index 000000000..8845cf009 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/bits/semaphore.h @@ -0,0 +1,35 @@ +/* Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _SEMAPHORE_H +# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead." +#endif + + +#define __SIZEOF_SEM_T 16 + + +/* Value returned if `sem_open' failed. */ +#define SEM_FAILED ((sem_t *) 0) + + +typedef union +{ + char __size[__SIZEOF_SEM_T]; + long int __align; +} sem_t; diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S new file mode 100644 index 000000000..539b9ef38 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/clone.S @@ -0,0 +1,3 @@ +#define RESET_PID +#include <tcb-offsets.h> +#include <libc/sysdeps/linux/xtensa/clone.S> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c new file mode 100644 index 000000000..2bb96e91a --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/createthread.c @@ -0,0 +1,24 @@ +/* Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Value passed to 'clone' for initialization of the thread register. */ +#define TLS_VALUE (pd + 1) + + +/* Get the real implementation. */ +#include <sysdeps/pthread/createthread.c> diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c index 08a085ce4..ba5c700da 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/x86_64/pt-vfork.S +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/fork.c @@ -1,4 +1,4 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. +/* Copyright (C) 2013 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -15,18 +15,15 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <tcb-offsets.h> +#include <sched.h> +#include <signal.h> +#include <sysdep.h> +#include <tls.h> -#define SAVE_PID \ - movl %fs:PID, %esi; \ - movl %esi, %edx; \ - negl %edx; \ - movl %edx, %fs:PID -#define RESTORE_PID \ - testq %rax, %rax; \ - je 1f; \ - movl %esi, %fs:PID; \ -1: +#define ARCH_FORK() \ + INLINE_SYSCALL (clone, 5, \ + CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, 0, \ + NULL, NULL, &THREAD_SELF->tid) -#include <../../../../../../../libc/sysdeps/linux/x86_64/vfork.S> +#include "../fork.c" diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c new file mode 100644 index 000000000..756f39fd4 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.c @@ -0,0 +1,132 @@ +/* low level locking for pthread library. Generic futex-using version. + Copyright (C) 2003-2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <sysdep.h> +#include <lowlevellock.h> +#include <sys/time.h> + +void +__lll_lock_wait_private (int *futex) +{ + do + { + int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, LLL_PRIVATE); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); +} + + +/* These functions don't get included in libc.so */ +#ifdef IS_IN_libpthread +void +__lll_lock_wait (int *futex, int private) +{ + do + { + int oldval = atomic_compare_and_exchange_val_acq (futex, 2, 1); + if (oldval != 0) + lll_futex_wait (futex, 2, private); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); +} + + +int +__lll_timedlock_wait (int *futex, const struct timespec *abstime, int private) +{ + struct timespec rt; + + /* Reject invalid timeouts. */ + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Upgrade the lock. */ + if (atomic_exchange_acq (futex, 2) == 0) + return 0; + + do + { + struct timeval tv; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + // XYZ: Lost the lock to check whether it was private. + lll_futex_timed_wait (futex, 2, &rt, private); + } + while (atomic_compare_and_exchange_bool_acq (futex, 2, 0) != 0); + + return 0; +} + + +int +__lll_timedwait_tid (int *tidp, const struct timespec *abstime) +{ + int tid; + + if (abstime->tv_nsec < 0 || abstime->tv_nsec >= 1000000000) + return EINVAL; + + /* Repeat until thread terminated. */ + while ((tid = *tidp) != 0) + { + struct timeval tv; + struct timespec rt; + + /* Get the current time. */ + (void) __gettimeofday (&tv, NULL); + + /* Compute relative timeout. */ + rt.tv_sec = abstime->tv_sec - tv.tv_sec; + rt.tv_nsec = abstime->tv_nsec - tv.tv_usec * 1000; + if (rt.tv_nsec < 0) + { + rt.tv_nsec += 1000000000; + --rt.tv_sec; + } + + /* Already timed out? */ + if (rt.tv_sec < 0) + return ETIMEDOUT; + + /* Wait until thread terminates. */ + // XYZ: Lost the lock to check whether it was private. + if (lll_futex_timed_wait (tidp, tid, &rt, LLL_SHARED) == -ETIMEDOUT) + return ETIMEDOUT; + } + + return 0; +} +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h new file mode 100644 index 000000000..abe6e9c37 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/lowlevellock.h @@ -0,0 +1,293 @@ +/* Copyright (C) 2005-2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#ifndef _LOWLEVELLOCK_H +#define _LOWLEVELLOCK_H 1 + +#include <time.h> +#include <sys/param.h> +#include <bits/pthreadtypes.h> +#include <atomic.h> +#include <sysdep.h> +#include <bits/kernel-features.h> + +#define FUTEX_WAIT 0 +#define FUTEX_WAKE 1 +#define FUTEX_REQUEUE 3 +#define FUTEX_CMP_REQUEUE 4 +#define FUTEX_WAKE_OP 5 +#define FUTEX_OP_CLEAR_WAKE_IF_GT_ONE ((4 << 24) | 1) +#define FUTEX_LOCK_PI 6 +#define FUTEX_UNLOCK_PI 7 +#define FUTEX_TRYLOCK_PI 8 +#define FUTEX_WAIT_BITSET 9 +#define FUTEX_WAKE_BITSET 10 +#define FUTEX_PRIVATE_FLAG 128 +#define FUTEX_CLOCK_REALTIME 256 + +#define FUTEX_BITSET_MATCH_ANY 0xffffffff + +/* Values for 'private' parameter of locking macros. Yes, the + definition seems to be backwards. But it is not. The bit will be + reversed before passing to the system call. */ +#define LLL_PRIVATE 0 +#define LLL_SHARED FUTEX_PRIVATE_FLAG + + +#if !defined NOT_IN_libc || defined IS_IN_rtld +/* In libc.so or ld.so all futexes are private. */ +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + ((fl) | FUTEX_PRIVATE_FLAG) +# else +# define __lll_private_flag(fl, private) \ + ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) +# endif +#else +# ifdef __ASSUME_PRIVATE_FUTEX +# define __lll_private_flag(fl, private) \ + (((fl) | FUTEX_PRIVATE_FLAG) ^ (private)) +# else +# define __lll_private_flag(fl, private) \ + (__builtin_constant_p (private) \ + ? ((private) == 0 \ + ? ((fl) | THREAD_GETMEM (THREAD_SELF, header.private_futex)) \ + : (fl)) \ + : ((fl) | (((private) ^ FUTEX_PRIVATE_FLAG) \ + & THREAD_GETMEM (THREAD_SELF, header.private_futex)))) +# endif +#endif + + +#define lll_futex_wait(futexp, val, private) \ + lll_futex_timed_wait(futexp, val, NULL, private) + +#define lll_futex_timed_wait(futexp, val, timespec, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAIT, private), \ + (val), (timespec)); \ + __ret; \ + }) + +#define lll_futex_timed_wait_bitset(futexp, val, timespec, clockbit, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + int __op = FUTEX_WAIT_BITSET | clockbit; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (__op, private), \ + (val), (timespec), NULL /* Unused. */, \ + FUTEX_BITSET_MATCH_ANY); \ + __ret; \ + }) + +#define lll_futex_wake(futexp, nr, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 4, (futexp), \ + __lll_private_flag (FUTEX_WAKE, private), \ + (nr), 0); \ + __ret; \ + }) + +#define lll_robust_dead(futexv, private) \ + do \ + { \ + int *__futexp = &(futexv); \ + atomic_or (__futexp, FUTEX_OWNER_DIED); \ + lll_futex_wake (__futexp, 1, private); \ + } \ + while (0) + +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_requeue(futexp, nr_wake, nr_move, mutex, val, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_CMP_REQUEUE, private),\ + (nr_wake), (nr_move), (mutex), (val)); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + + +/* Returns non-zero if error happened, zero if success. */ +#define lll_futex_wake_unlock(futexp, nr_wake, nr_wake2, futexp2, private) \ + ({ \ + INTERNAL_SYSCALL_DECL (__err); \ + long int __ret; \ + __ret = INTERNAL_SYSCALL (futex, __err, 6, (futexp), \ + __lll_private_flag (FUTEX_WAKE_OP, private), \ + (nr_wake), (nr_wake2), (futexp2), \ + FUTEX_OP_CLEAR_WAKE_IF_GT_ONE); \ + INTERNAL_SYSCALL_ERROR_P (__ret, __err); \ + }) + + +#define lll_trylock(lock) \ + atomic_compare_and_exchange_val_acq(&(lock), 1, 0) + +#define lll_cond_trylock(lock) \ + atomic_compare_and_exchange_val_acq(&(lock), 2, 0) + +#define __lll_robust_trylock(futex, id) \ + (atomic_compare_and_exchange_val_acq (futex, id, 0) != 0) +#define lll_robust_trylock(lock, id) \ + __lll_robust_trylock (&(lock), id) + +extern void __lll_lock_wait_private (int *futex) attribute_hidden; +extern void __lll_lock_wait (int *futex, int private) attribute_hidden; +extern int __lll_robust_lock_wait (int *futex, int private) attribute_hidden; + +#define __lll_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_compare_and_exchange_val_acq (__futex, \ + 1, 0), 0)) \ + { \ + if (__builtin_constant_p (private) && (private) == LLL_PRIVATE) \ + __lll_lock_wait_private (__futex); \ + else \ + __lll_lock_wait (__futex, private); \ + } \ + })) +#define lll_lock(futex, private) __lll_lock (&(futex), private) + + +#define __lll_robust_lock(futex, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_lock_wait (__futex, private); \ + __val; \ + }) +#define lll_robust_lock(futex, id, private) \ + __lll_robust_lock (&(futex), id, private) + + +#define __lll_cond_lock(futex, private) \ + ((void) ({ \ + int *__futex = (futex); \ + if (__builtin_expect (atomic_exchange_acq (__futex, 2), 0)) \ + __lll_lock_wait (__futex, private); \ + })) +#define lll_cond_lock(futex, private) __lll_cond_lock (&(futex), private) + + +#define lll_robust_cond_lock(futex, id, private) \ + __lll_robust_lock (&(futex), (id) | FUTEX_WAITERS, private) + + +extern int __lll_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; +extern int __lll_robust_timedlock_wait (int *futex, const struct timespec *, + int private) attribute_hidden; + +#define __lll_timedlock(futex, abstime, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_exchange_acq (__futex, 1), 0)) \ + __val = __lll_timedlock_wait (__futex, abstime, private); \ + __val; \ + }) +#define lll_timedlock(futex, abstime, private) \ + __lll_timedlock (&(futex), abstime, private) + + +#define __lll_robust_timedlock(futex, abstime, id, private) \ + ({ \ + int *__futex = (futex); \ + int __val = 0; \ + \ + if (__builtin_expect (atomic_compare_and_exchange_bool_acq (__futex, id, \ + 0), 0)) \ + __val = __lll_robust_timedlock_wait (__futex, abstime, private); \ + __val; \ + }) +#define lll_robust_timedlock(futex, abstime, id, private) \ + __lll_robust_timedlock (&(futex), abstime, id, private) + + +#define __lll_unlock(futex, private) \ + (void) \ + ({ int *__futex = (futex); \ + int __oldval = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__oldval > 1, 0)) \ + lll_futex_wake (__futex, 1, private); \ + }) +#define lll_unlock(futex, private) __lll_unlock(&(futex), private) + + +#define __lll_robust_unlock(futex, private) \ + (void) \ + ({ int *__futex = (futex); \ + int __oldval = atomic_exchange_rel (__futex, 0); \ + if (__builtin_expect (__oldval & FUTEX_WAITERS, 0)) \ + lll_futex_wake (__futex, 1, private); \ + }) +#define lll_robust_unlock(futex, private) \ + __lll_robust_unlock(&(futex), private) + + +#define lll_islocked(futex) \ + (futex != 0) + + +/* Our internal lock implementation is identical to the binary-compatible + mutex implementation. */ + +/* Initializers for lock. */ +#define LLL_LOCK_INITIALIZER (0) +#define LLL_LOCK_INITIALIZER_LOCKED (1) + +/* The states of a lock are: + 0 - untaken + 1 - taken by one user + >1 - taken by more users */ + +/* The kernel notifies a process which uses CLONE_CHILD_CLEARTID via futex + wakeup when the clone terminates. The memory location contains the + thread ID while the clone is running and is reset to zero + afterwards. */ +#define lll_wait_tid(tid) \ + do { \ + __typeof (tid) __tid; \ + while ((__tid = (tid)) != 0) \ + lll_futex_wait (&(tid), __tid, LLL_SHARED);\ + } while (0) + +extern int __lll_timedwait_tid (int *, const struct timespec *) + attribute_hidden; + +#define lll_timedwait_tid(tid, abstime) \ + ({ \ + int __res = 0; \ + if ((tid) != 0) \ + __res = __lll_timedwait_tid (&(tid), (abstime)); \ + __res; \ + }) + +#endif /* lowlevellock.h */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c new file mode 100644 index 000000000..4e6d26e81 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pt-initfini.c @@ -0,0 +1,134 @@ +/* Special .init and .fini section support. Linuxthread version. + Copyright (C) 1995,1996,1997,2000,2001,2002 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it + and/or modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2 of the License, or (at your option) any later version. + + In addition to the permissions in the GNU Lesser General Public + License, the Free Software Foundation gives you unlimited + permission to link the compiled version of this file with other + programs, and to distribute those programs without any restriction + coming from the use of this file. (The Library General Public + License restrictions do apply in other respects; for example, they + cover modification of the file, and distribution when not linked + into another program.) + + The GNU C Library is distributed in the hope that it will be + useful, but WITHOUT ANY WARRANTY; without even the implied warranty + of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; see the file COPYING.LIB. If not, + see <http://www.gnu.org/licenses/>. */ + +/* This file is compiled into assembly code which is then munged by a sed + script into two files: crti.s and crtn.s. + + * crti.s puts a function prologue at the beginning of the + .init and .fini sections and defines global symbols for + those addresses, so they can be called as functions. + + * crtn.s puts the corresponding function epilogues + in the .init and .fini sections. */ + +#include <stdlib.h> + +/* We use embedded asm for .section unconditionally, as this makes it + easier to insert the necessary directives into crtn.S. */ +#define SECTION(x) __asm__ (".section " x ) + +/* Embed an #include to pull in the alignment and .end directives. */ +__asm__ ("\n#include \"defs.h\""); +__asm__ ("\n#if defined __i686 && defined __ASSEMBLER__"); +__asm__ ("\n#undef __i686"); +__asm__ ("\n#define __i686 __i686"); +__asm__ ("\n#endif"); + +/* The initial common code ends here. */ +__asm__ ("\n/*@HEADER_ENDS*/"); + +/* To determine whether we need .end and .align: */ +__asm__ ("\n/*@TESTS_BEGIN*/"); +extern void dummy (void (*foo) (void)); +void +dummy (void (*foo) (void)) +{ + if (foo) + (*foo) (); +} +__asm__ ("\n/*@TESTS_END*/"); + +/* The beginning of _init: */ +__asm__ ("\n/*@_init_PROLOG_BEGINS*/"); + +static void +call_initialize_minimal (void) +{ + extern void __pthread_initialize_minimal_internal (void) + __attribute ((visibility ("hidden"))); + + __pthread_initialize_minimal_internal (); +} + +SECTION (".init"); +extern void __attribute__ ((section (".init"))) _init (void); +void +_init (void) +{ + /* The very first thing we must do is to set up the registers. */ + call_initialize_minimal (); + + __asm__ ("ALIGN"); + __asm__("END_INIT"); + /* Now the epilog. */ + __asm__ ("\n/*@_init_PROLOG_ENDS*/"); + __asm__ ("\n/*@_init_EPILOG_BEGINS*/"); + SECTION(".init"); +} +__asm__ ("END_INIT"); + +/* End of the _init epilog, beginning of the _fini prolog. */ +__asm__ ("\n/*@_init_EPILOG_ENDS*/"); +__asm__ ("\n/*@_fini_PROLOG_BEGINS*/"); + +SECTION (".fini"); +extern void __attribute__ ((section (".fini"))) _fini (void); +void +_fini (void) +{ + + /* End of the _fini prolog. */ + __asm__ ("ALIGN"); + __asm__ ("END_FINI"); + __asm__ ("\n/*@_fini_PROLOG_ENDS*/"); + + /* Xtensa: It doesn't really matter whether GCC thinks this is a leaf + function or not, and the scripts that are supposed to remove the + call don't catch the literal, resulting in an undefined symbol + reference. */ +#if 0 + { + /* Let GCC know that _fini is not a leaf function by having a dummy + function call here. We arrange for this call to be omitted from + either crt file. */ + extern void i_am_not_a_leaf (void); + i_am_not_a_leaf (); + } +#endif + + /* Beginning of the _fini epilog. */ + __asm__ ("\n/*@_fini_EPILOG_BEGINS*/"); + SECTION (".fini"); +} +__asm__ ("END_FINI"); + +/* End of the _fini epilog. Any further generated assembly (e.g. .ident) + is shared between both crt files. */ +__asm__ ("\n/*@_fini_EPILOG_ENDS*/"); +__asm__ ("\n/*@TRAILER_BEGINS*/"); + +/* End of file. */ diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c new file mode 100644 index 000000000..46085d3b5 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/pthread_once.c @@ -0,0 +1,89 @@ +/* Copyright (C) 2004-2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include "pthreadP.h" +#include <lowlevellock.h> + +unsigned long int __fork_generation attribute_hidden; + +static void +clear_once_control (void *arg) +{ + pthread_once_t *once_control = (pthread_once_t *) arg; + + *once_control = 0; + lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE); +} + +int +__pthread_once (pthread_once_t *once_control, void (*init_routine) (void)) +{ + for (;;) + { + int oldval; + int newval; + + /* Pseudo code: + newval = __fork_generation | 1; + oldval = *once_control; + if ((oldval & 2) == 0) + *once_control = newval; + Do this atomically. + */ + do + { + newval = __fork_generation | 1; + oldval = *once_control; + if (oldval & 2) + break; + } while (atomic_compare_and_exchange_val_acq (once_control, newval, oldval) != oldval); + + /* Check if the initializer has already been done. */ + if ((oldval & 2) != 0) + return 0; + + /* Check if another thread already runs the initializer. */ + if ((oldval & 1) == 0) + break; + + /* Check whether the initializer execution was interrupted by a fork. */ + if (oldval != newval) + break; + + /* Same generation, some other thread was faster. Wait. */ + lll_futex_wait (once_control, oldval, LLL_PRIVATE); + } + + /* This thread is the first here. Do the initialization. + Register a cleanup handler so that in case the thread gets + interrupted the initialization can be restarted. */ + pthread_cleanup_push (clear_once_control, once_control); + + init_routine (); + + pthread_cleanup_pop (0); + + /* Say that the initialisation is done. */ + *once_control = __fork_generation | 2; + + /* Wake up all other threads. */ + lll_futex_wake (once_control, INT_MAX, LLL_PRIVATE); + + return 0; +} +weak_alias (__pthread_once, pthread_once) +strong_alias (__pthread_once, __pthread_once_internal) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h new file mode 100644 index 000000000..6bb2aeb56 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/sysdep-cancel.h @@ -0,0 +1,108 @@ +/* Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <sysdep.h> +#include <tls.h> +/* #include <pt-machine.h> */ +#ifndef __ASSEMBLER__ +# include <pthreadP.h> +#endif + +#if !defined NOT_IN_libc || defined IS_IN_libpthread || defined IS_IN_librt +// FIXME: ENTRY includes an entry instruction, here we'd want entry sp, 48! +# undef PSEUDO +# define PSEUDO(name, syscall_name, args) \ + .text; \ + ENTRY (name) \ + SINGLE_THREAD_P(a15); \ + bnez a15, .Lpseudo_cancel; \ + DO_CALL (syscall_name, args); \ + bgez a2, .Lpseudo_done; \ + movi a4, -4095; \ + blt a2, a4, .Lpseudo_done; \ + j SYSCALL_ERROR_LABEL; \ + .Lpseudo_done: \ + retw; \ + .Lpseudo_cancel: \ + /* The syscall args are in a2...a7; no need to save */ \ + CENABLE; \ + /* The return value is in a10 and preserved across the syscall */ \ + DO_CALL (syscall_name, args); \ + CDISABLE; \ + bgez a2, .Lpseudo_end; \ + movi a4, -4095; \ + blt a2, a4, .Lpseudo_end; \ + j SYSCALL_ERROR_LABEL; \ + .Lpseudo_end: + + +# ifdef IS_IN_libpthread +# define CENABLE_FUNC __pthread_enable_asynccancel +# define CDISABLE_FUNC __pthread_disable_asynccancel +# define __local_multiple_threads __pthread_multiple_threads +# elif !defined NOT_IN_libc +# define CENABLE_FUNC __libc_enable_asynccancel +# define CDISABLE_FUNC __libc_disable_asynccancel +# define __local_multiple_threads __libc_multiple_threads +# elif defined IS_IN_librt +# define CENABLE_FUNC __librt_enable_asynccancel +# define CDISABLE_FUNC __librt_disable_asynccancel +# else +# error Unsupported library +# endif + +# define CENABLE movi a8, CENABLE_FUNC; \ + callx8 a8 +# define CDISABLE movi a8, CDISABLE_FUNC; \ + callx8 a8 + +# if defined IS_IN_libpthread || !defined NOT_IN_libc +# ifndef __ASSEMBLER__ +extern int __local_multiple_threads attribute_hidden; +# define SINGLE_THREAD_P __builtin_expect (__local_multiple_threads == 0, 1) +# else +# define SINGLE_THREAD_P(reg) movi reg, __local_multiple_threads; \ + l32i reg, reg, 0; +# endif + +# else +# ifndef __ASSEMBLER__ +# define SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +# else +# define SINGLE_THREAD_P(reg) \ + rur reg, threadptr; \ + l32i reg, reg, MULTIPLE_THREADS_OFFSET; +# endif +# endif + +#else + +/* This code should never be used but we define it anyhow. */ +# define SINGLE_THREAD_P (1) +# define NO_CANCELLATION 1 + +#endif + + +#ifndef __ASSEMBLER__ +# define RTLD_SINGLE_THREAD_P \ + __builtin_expect (THREAD_GETMEM (THREAD_SELF, \ + header.multiple_threads) == 0, 1) +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S new file mode 100644 index 000000000..46eb76dd6 --- /dev/null +++ b/libpthread/nptl/sysdeps/unix/sysv/linux/xtensa/vfork.S @@ -0,0 +1,59 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library. If not, see + <http://www.gnu.org/licenses/>. */ + +#include <tls.h> + +/* + Save the PID value, save 0x80000000 if PID was 0. + Registers a2 and a3 are available; ar should return the PID and as threadptr + */ + +#define SAVE_PID(pid,tp,ar,as) \ + rur tp, threadptr; \ + movi ar, TLS_PRE_TCB_SIZE; \ + sub tp, tp, ar; \ + l32i pid, tp, PID; \ + neg ar, pid; \ + movi as, 0x80000000; \ + moveqz ar, as, ar; \ + s32i ar, tp, PID; \ + +/* + Restore the PID value, restore to 0 if saved value was 0x80000000 + Return value from the syscall is in a2. + */ +#define RESTORE_PID(pid,tp,res) \ + beqz res, 1f; \ + s32i pid, tp, PID; \ +1: + +/* + Special version for call12, where we don't have enough registers + available to preserve the original PID. + */ +#define RESTORE_PID12(ar, as, at) \ + rur as, threadptr; \ + movi ar, TLS_PRE_TCB_SIZE; \ + sub as, as, ar; \ + l32i ar, as, PID; \ + movi at, 0x80000000; \ + sub at, at, ar; \ + neg ar, ar; \ + moveqz ar, at, at; \ + s32i ar, as, PID; + +#include <libc/sysdeps/linux/xtensa/vfork.S> diff --git a/libpthread/nptl/sysdeps/xtensa/Makefile.arch b/libpthread/nptl/sysdeps/xtensa/Makefile.arch new file mode 100644 index 000000000..5bbd409c6 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/Makefile.arch @@ -0,0 +1,40 @@ +# Copyright (C) 2012 Free Software Foundation, Inc. +# This file is part of the GNU C Library. +# +# The GNU C Library is free software; you can redistribute it and/or +# modify it under the terms of the GNU Lesser General Public +# License as published by the Free Software Foundation; either +# version 2.1 of the License, or (at your option) any later version. +# +# The GNU C Library is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +# Lesser General Public License for more details. +# +# You should have received a copy of the GNU Lesser General Public +# License along with the GNU C Library; if not, write to the Free +# Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA +# 02111-1307 USA. + +CFLAGS-pt-raise.c = -DNOT_IN_libc -DIS_IN_libpthread + +ASFLAGS-dl-tlsdesc.S = -DNOT_IN_libc=1 +ASFLAGS-pthread_spin_lock.S = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-pthread_spin_trylock.S = -DNOT_IN_libc -DIS_IN_libpthread +ASFLAGS-nptl-sysdep.S = -DNOT_IN_libc -DIS_IN_libpthread \ + -D_LIBC_REENTRANT \ + -I$(top_srcdir)libc/sysdeps/linux/xtensa + +libc_arch_a_CSRC = libc-tls.c +librt_arch_a_SSRC = dl-tlsdesc.S + +CFLAGS-gen_tlsdesc.c = -S +$(libpthread_arch_OUT)/gen_tlsdesc.c: $(libpthread_arch_DIR)/tlsdesc.sym | $(libpthread_arch_OUT) + $(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@ +$(libpthread_arch_OUT)/gen_tlsdesc.s: $(libpthread_arch_OUT)/gen_tlsdesc.c | headers + $(compile.c) +libpthread-generated-y += $(libpthread_arch_OUT)/gen_tlsdesc.s +$(libpthread_arch_OUT)/tlsdesc.h: $(libpthread_arch_OUT)/gen_tlsdesc.s + $(do_sed) $(PTHREAD_GENERATE_MANGLE) $< > $@ + @if test ! -s $@ ; then rm -f $@ ; false ; fi +pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(libpthread_arch_OUT)/tlsdesc.h diff --git a/libpthread/nptl/sysdeps/xtensa/dl-tls.h b/libpthread/nptl/sysdeps/xtensa/dl-tls.h new file mode 100644 index 000000000..29008dbb9 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/dl-tls.h @@ -0,0 +1,58 @@ +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2013 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _XTENSA_DL_TLS_H +#define _XTENSA_DL_TLS_H 1 + +/* Type used for the representation of TLS information in the GOT. */ +typedef struct +{ + unsigned long int ti_module; + unsigned long int ti_offset; +} tls_index; + +extern void *__tls_get_addr (tls_index *ti); + +/* Type used to represent a TLS descriptor. */ +struct tlsdesc +{ + union + { + void *pointer; + long value; + } argument; + ptrdiff_t (*entry)(struct tlsdesc *); +}; + +/* Type used as the argument in a TLS descriptor for a symbol that + needs dynamic TLS offsets. */ +struct tlsdesc_dynamic_arg +{ + tls_index tlsinfo; + size_t gen_count; +}; + +extern ptrdiff_t attribute_hidden + _dl_tlsdesc_return(struct tlsdesc_dynamic_arg *); + +extern void *_dl_make_tlsdesc_dynamic (struct link_map *map, size_t ti_offset); +extern ptrdiff_t attribute_hidden + _dl_tlsdesc_dynamic(struct tlsdesc_dynamic_arg *); + +#endif diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/jmpbuf-unwind.h index 2f82504a2..bda498b8a 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/powerpc/powerpc32/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/jmpbuf-unwind.h @@ -1,6 +1,5 @@ -/* Copyright (C) 2004 Free Software Foundation, Inc. +/* Copyright (C) 2005,2006 Free Software Foundation, Inc. This file is part of the GNU C Library. - Contributed by Jakub Jelinek <jakub@redhat.com>, 2004. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public @@ -16,33 +15,18 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> -#define _ERRNO_H 1 -#include <bits/errno.h> -#include <bits/kernel-features.h> -#include <tcb-offsets.h> +#include <setjmp.h> +#include <stdint.h> +#include <unwind.h> -/* Clone the calling process, but without copying the whole address space. - The calling process is suspended until the new process exits or is - replaced by a call to `execve'. Return -1 for errors, 0 to the new process, - and the process ID of the new process to the old process. */ +/* Test if longjmp to JMPBUF would unwind the frame + containing a local variable at ADDRESS. */ +#undef _JMPBUF_UNWINDS +#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \ + ((void *) (address) < (void *) demangle (jmpbuf[JB_SP])) -ENTRY (__vfork) - lwz 0,PID(2) - neg 0,0 - stw 0,PID(2) +#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \ + _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj) - DO_CALL (SYS_ify (vfork)) - - cmpwi 1,3,0 - beqlr- 1 - - lwz 0,PID(2) - neg 0,0 - stw 0,PID(2) - - PSEUDO_RET - -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) +#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \ + ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf)[JB_SP] - (_adj)) diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/libc-tls.c index a6005c1ab..80494c56f 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/alpha/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/libc-tls.c @@ -1,4 +1,5 @@ -/* Copyright (C) 2003, 2004 Free Software Foundation, Inc. +/* Thread-local storage handling in the ELF dynamic linker. Xtensa version. + Copyright (C) 2005 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -15,28 +16,21 @@ License along with the GNU C Library; if not, see <http://www.gnu.org/licenses/>. */ -#include <sysdep.h> -#include <tcb-offsets.h> +#include <sysdeps/generic/libc-tls.c> +#include <dl-tls.h> -#undef PSEUDO_PREPARE_ARGS -#define PSEUDO_PREPARE_ARGS \ - /* Load the current cached pid value across the vfork. */ \ - rduniq; \ - ldl a2, PID_OFFSET(v0); \ - mov v0, a1; \ - /* Write back its negation, to indicate that the pid value is \ - uninitialized in the the child, and in the window between \ - here and the point at which we restore the value. */ \ - negl a2, t0; \ - stl t0, PID_OFFSET(v0); +#if defined(USE_TLS) && USE_TLS -PSEUDO (__vfork, vfork, 0) +/* On Xtensa, linker optimizations are not required, so __tls_get_addr + can be called even in statically linked binaries. In this case module + must be always 1 and PT_TLS segment exist in the binary, otherwise it + would not link. */ - /* If we're back in the parent, restore the saved pid. */ - beq v0, 1f - stl a2, PID_OFFSET(a1) -1: ret +void * +__tls_get_addr (tls_index *ti) +{ + dtv_t *dtv = THREAD_DTV (); + return (char *) dtv[1].pointer.val + ti->ti_offset; +} -PSEUDO_END (__vfork) - -weak_alias (__vfork, vfork) +#endif diff --git a/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S b/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S new file mode 100644 index 000000000..1e220a863 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/pthread_spin_lock.S @@ -0,0 +1,37 @@ +/* Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + .text + .align 4 + + .globl pthread_spin_lock +pthread_spin_lock: + + entry a1, 16 + + movi a3, 0 + wsr a3, scompare1 + movi a3, 1 +1: s32c1i a3, a2, 0 + bnez a3, 1b + movi a2, 0 + + retw + + .type pthread_spin_lock, @function + .size pthread_spin_lock, .-pthread_spin_lock diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/pt-vfork.S b/libpthread/nptl/sysdeps/xtensa/pthread_spin_trylock.S index 489c74936..a736b010f 100644 --- a/libpthread/nptl/sysdeps/unix/sysv/linux/metag/pt-vfork.S +++ b/libpthread/nptl/sysdeps/xtensa/pthread_spin_trylock.S @@ -16,36 +16,25 @@ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */ -#include <tcb-offsets.h> -#include <asm/unistd.h> - -#ifdef __PIC__ -#define __VFORK_METAG_LOAD_TP ___metag_load_tp@PLT -#else -#define __VFORK_METAG_LOAD_TP ___metag_load_tp -#endif - -/* Save the PID value. */ -#define SAVE_PID \ - SETL [A0StP++], D0FrT, D1RtP; \ - CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ - GETD D0FrT, [D0Re0 + #PID]; \ - NEG D0FrT, D0FrT; \ - SETD [D0Re0 + #PID], D0FrT; \ - GETL D0FrT, D1RtP, [--A0StP]; - -#define RESTORE_PID \ - CMP D0Re0, #0; \ - BEQ 1f; \ - MSETL [A0StP++], D0Re0, D0FrT; \ - CALLR D1RtP, __VFORK_METAG_LOAD_TP; \ - SUB D0Re0, D0Re0, #TLS_PRE_TCB_SIZE; \ - GETD D0FrT, [D0Re0 + #PID]; \ - NEG D0FrT, D0FrT; \ - SETD [D0Re0 + #PID], D0FrT; \ - GETL D0FrT, D1RtP, [--A0StP]; \ - GETL D0Re0, D1Re0, [--A0StP]; \ -1: - -#include <../../../../../../../libc/sysdeps/linux/metag/vfork.S> +#define _ERRNO_H 1 +#include <bits/errno.h> + + .text + .align 4 + + .globl pthread_spin_trylock +pthread_spin_trylock: + + entry a1, 16 + + movi a3, 0 + wsr a3, scompare1 + movi a3, 1 + s32c1i a3, a2, 0 + movi a2, EBUSY + moveqz a2, a3, a3 + + retw + + .type pthread_spin_trylock, @function + .size pthread_spin_trylock, .-pthread_spin_trylock diff --git a/libpthread/nptl/sysdeps/xtensa/pthreaddef.h b/libpthread/nptl/sysdeps/xtensa/pthreaddef.h new file mode 100644 index 000000000..e72b4bc58 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/pthreaddef.h @@ -0,0 +1,39 @@ +/* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024) + +/* Required stack pointer alignment at beginning. */ +#define STACK_ALIGN 16 + +/* Minimal stack size after allocating thread descriptor and guard size. */ +#define MINIMAL_REST_STACK 2048 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME __builtin_frame_address (0) + + +/* XXX Until we have a better place keep the definitions here. */ + +#define __exit_thread_inline(val) \ + INLINE_SYSCALL (exit, 1, (val)) diff --git a/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym b/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym new file mode 100644 index 000000000..4c8687647 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tcb-offsets.sym @@ -0,0 +1,7 @@ +#include <sysdep.h> +#include <tls.h> + +TLS_PRE_TCB_SIZE sizeof (struct pthread) +MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) +PID offsetof (struct pthread, pid) +TID offsetof (struct pthread, tid) diff --git a/libpthread/nptl/sysdeps/xtensa/tls.h b/libpthread/nptl/sysdeps/xtensa/tls.h new file mode 100644 index 000000000..f0cb27c01 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tls.h @@ -0,0 +1,159 @@ +/* Definition for thread-local data handling. NPTL/Xtensa version. + Copyright (C) 2012 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#ifndef _TLS_H +#define _TLS_H + +#ifndef __ASSEMBLER__ + +# include <stdbool.h> +# include <stddef.h> +# include <stdint.h> + +/* Type for the dtv. */ +typedef union dtv +{ + size_t counter; + struct + { + void *val; + bool is_static; + } pointer; +} dtv_t; + + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif /* __ASSEMBLER__ */ + +/* We require TLS support in the tools. */ +#define HAVE_TLS_SUPPORT 1 +#define HAVE_TLS_MODEL_ATTRIBUTE 1 +#define HAVE___THREAD 1 + +/* Signal that TLS support is available. */ +#define USE_TLS 1 + +#ifndef __ASSEMBLER__ + +/* Get system call information. */ +# include <sysdep.h> + +/* The TLS blocks start right after the TCB. */ +# define TLS_DTV_AT_TP 1 + +/* Get the thread descriptor definition. */ +# include <../../descr.h> + +typedef struct +{ + dtv_t *dtv; + void *private; +} tcbhead_t; + +/* This is the size of the initial TCB. */ +# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN 16 + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (tcbhead_t) + +/* This is the size we need before TCB. */ +# define TLS_PRE_TCB_SIZE sizeof (struct pthread) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN 16 + + +/* Install the dtv pointer. The pointer passed is to the element with + index -1 which contain the length. */ +# define INSTALL_DTV(tcbp, dtvp) \ + (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1) + +/* Install new dtv for current thread. */ +# define INSTALL_NEW_DTV(dtv) \ + ({ tcbhead_t *__tcbp; \ + __asm__ __volatile__ ("rur %0, threadptr" : "=r" (__tcbp)); \ + __tcbp->dtv = (dtv); }) \ + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(tcbp) \ + (((tcbhead_t *) (tcbp))->dtv) + +/* Code to initially initialize the thread pointer. This might need + special attention since 'errno' is not yet available and if the + operation can cause a failure 'errno' must not be touched. */ +# define TLS_INIT_TP(tcbp, secondcall) \ + ({ __asm__ __volatile__ ("wur %0, threadptr" : : "r" (tcbp)); 0; }) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + ({ tcbhead_t *__tcbp; \ + __asm__ __volatile__ ("rur %0, threadptr" : "=r" (__tcbp)); \ + __tcbp->dtv; }) + +/* Return the thread descriptor for the current thread. */ +# define THREAD_SELF \ + ({ struct pthread *__self; \ + __asm__ ("rur %0, threadptr" : "=r" (__self)); \ + __self - 1; }) + +/* Magic for libthread_db to know how to do THREAD_SELF. */ +# define DB_THREAD_SELF \ + CONST_THREAD_AREA (32, sizeof (struct pthread)) + +/* Access to data in the thread descriptor is easy. */ +#define THREAD_GETMEM(descr, member) \ + descr->member +#define THREAD_GETMEM_NC(descr, member, idx) \ + descr->member[idx] +#define THREAD_SETMEM(descr, member, value) \ + descr->member = (value) +#define THREAD_SETMEM_NC(descr, member, idx, value) \ + descr->member[idx] = (value) + +/* Get and set the global scope generation counter in struct pthread. */ +#define THREAD_GSCOPE_FLAG_UNUSED 0 +#define THREAD_GSCOPE_FLAG_USED 1 +#define THREAD_GSCOPE_FLAG_WAIT 2 +#define THREAD_GSCOPE_RESET_FLAG() \ + do \ + { int __res \ + = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \ + THREAD_GSCOPE_FLAG_UNUSED); \ + if (__res == THREAD_GSCOPE_FLAG_WAIT) \ + lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \ + } \ + while (0) +#define THREAD_GSCOPE_SET_FLAG() \ + do \ + { \ + THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \ + atomic_write_barrier (); \ + } \ + while (0) + +#define THREAD_GSCOPE_WAIT() \ + GL(dl_wait_lookup_done) () + +#endif /* __ASSEMBLER__ */ + +#endif /* tls.h */ diff --git a/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym b/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym new file mode 100644 index 000000000..b18bf5fb9 --- /dev/null +++ b/libpthread/nptl/sysdeps/xtensa/tlsdesc.sym @@ -0,0 +1,10 @@ +#include <stddef.h> +#include <sysdep.h> +#include <tls.h> +#include <link.h> +#include <dl-tls.h> + +TLSDESC_ARG offsetof(struct tlsdesc, argument) +TLSDESC_GEN_COUNT offsetof(struct tlsdesc_dynamic_arg, gen_count) +TLSDESC_MODID offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_module) +TLSDESC_MODOFF offsetof(struct tlsdesc_dynamic_arg, tlsinfo.ti_offset) diff --git a/test/Makefile b/test/Makefile index 787c530d4..e4f64181e 100644 --- a/test/Makefile +++ b/test/Makefile @@ -18,7 +18,7 @@ endif ifneq ($(findstring -static,$(LDFLAGS)),) DIRS := $(filter-out dlopen,$(DIRS)) endif -ifneq ($(UCLIBC_HAS_THREADS),y) +ifneq ($(UCLIBC_HAS_THREADS)$(ARCH_USE_MMU),yy) DIRS := $(filter-out pthread,$(DIRS)) endif ifneq ($(UCLIBC_HAS_FULL_RPC),y) diff --git a/test/misc/Makefile.in b/test/misc/Makefile.in index 52a3e7164..3dfe6179c 100644 --- a/test/misc/Makefile.in +++ b/test/misc/Makefile.in @@ -2,6 +2,11 @@ # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. TESTS_DISABLED := outb tst-fnmatch bug-glob1 tst-gnuglob + +ifeq ($(TARGET_avr32),y) +TESTS_DISABLED += tst-inotify +endif + ifeq ($(UCLIBC_HAS_LFS),) TESTS_DISABLED += dirent64 TESTS_DISABLED += tst-statfs # assuming host has LFS on diff --git a/test/nptl/Makefile.in b/test/nptl/Makefile.in index dd53f9102..d20d2c1a5 100644 --- a/test/nptl/Makefile.in +++ b/test/nptl/Makefile.in @@ -38,11 +38,10 @@ TESTS := tst-align tst-align2 tst-atfork1 tst-attr1 tst-attr2 tst-attr3 \ tst-cancelx12 tst-cancelx13 tst-cancelx14 tst-cancelx15 tst-cancelx16 \ tst-cancelx18 tst-cancelx20 tst-cancelx21 tst-cleanupx0 tst-cleanupx1 \ tst-cleanupx2 tst-cleanupx3 tst-cleanupx4 tst-cond22 tst-cond23 \ - tst-dlsym1 tst-getpid1 tst-getpid2 tst-getpid3 tst-join6 tst-tsd6 \ + tst-getpid1 tst-getpid2 tst-getpid3 tst-join6 tst-tsd6 \ tst-oddstacklimit tst-oncex3 tst-oncex4 tst-rwlock2a \ - tst-basic7 tst-fini1 tst-signal7 \ - tst-unload tst-vfork1x tst-vfork2x tst-sem10 tst-sem11 tst-sem12 \ - tst-typesizes tst-initializers1-c89 tst-initializers1-c99 \ + tst-basic7 tst-signal7 tst-vfork1x tst-vfork2x tst-sem10 tst-sem11 \ + tst-sem12 tst-typesizes tst-initializers1-c89 tst-initializers1-c99 \ tst-initializers1-gnu89 tst-initializers1-gnu99 # @@ -68,7 +67,8 @@ GLIBC_TESTS_DISABLED := tst-eintr1_glibc tst-eintr2_glibc \ ifeq ($(HAVE_SHARED),) -TESTS_DISABLED += tst-tls3 tst-tls4 tst-tls5 +TESTS_DISABLED += tst-tls3 tst-tls4 tst-tls5 tst-dlsym1 tst-fini1 \ + tst-unload else GLIBC_TESTS_DISABLED += tst-tls3_glibc tst-tls4_glibc tst-tls5_glibc endif @@ -109,7 +109,7 @@ LDFLAGS_tst-rwlock14 = -lrt LDFLAGS_tst-fini1 = -Wl,-rpath=./ tst-fini1mod.so LDFLAGS_tst-fini1mod.so = -Wl,-soname=tst-fini1mod.so LDFLAGS_tst-unload = -ldl -LDFLAGS_tst-cancel5 := -lpthread -lpthread_nonshared +LDFLAGS_tst-cancel5 := -lpthread LDFLAGS_tst-cancel23 := -lc -lpthread LDFLAGS_tst-vfork1x := -lc -lpthread LDFLAGS_tst-vfork2x := -lc -lpthread diff --git a/test/nptl/tst-unload.c b/test/nptl/tst-unload.c index c7de2cb91..74a714ecb 100644 --- a/test/nptl/tst-unload.c +++ b/test/nptl/tst-unload.c @@ -23,17 +23,17 @@ static int do_test (void) { - void *p = dlopen ("libpthread.so.0", RTLD_LAZY); + void *p = dlopen ("libpthread.so.1", RTLD_LAZY); if (p == NULL) { - puts ("failed to load libpthread.so.0"); + puts ("failed to load libpthread.so.1"); return 1; } if (dlclose (p) != 0) { - puts ("dlclose (libpthread.so.0) failed"); + puts ("dlclose (libpthread.so.1) failed"); return 1; } diff --git a/test/time/Makefile.in b/test/time/Makefile.in index bb11e18bd..83bc07dbb 100644 --- a/test/time/Makefile.in +++ b/test/time/Makefile.in @@ -4,6 +4,10 @@ TESTS_DISABLED := bug-asctime bug-asctime_r time tst-mktime2 tst-posixtz \ tst-strftime tst-strptime tst-timezone +ifeq ($(TARGET_avr32),y) +TESTS_DISABLED += tst-timerfd +endif + ifneq ($(UCLIBC_HAS_XLOCALE),y) TESTS_DISABLED += tst-ftime_l endif diff --git a/test/tls/Makefile.in b/test/tls/Makefile.in index 7ab4e2ad3..0a9833757 100644 --- a/test/tls/Makefile.in +++ b/test/tls/Makefile.in @@ -12,6 +12,10 @@ ifeq ($(HAVE_SHARED),) TESTS_DISABLED := $(TESTS) endif +ifeq ($(TARGET_ARCH),arc) +TESTS_DISABLED += tst-tls12 tst-tls-at-ctor +endif + # All these tests need tls.h, which is not installed with glibc GLIBC_TESTS_DISABLED := $(addsuffix _glibc,$(filter-out $(TESTS_DISABLED),$(TESTS))) diff --git a/test/tls/tls-macros.h b/test/tls/tls-macros.h index 2787809f5..a41aef688 100644 --- a/test/tls/tls-macros.h +++ b/test/tls/tls-macros.h @@ -885,6 +885,43 @@ register void *__gp __asm__("$29"); : "=&r" (__result) : "r" (tp)); \ __result; }) +#elif defined __xtensa__ + +#define TLS_GD(x) \ + ({ int *__l; \ + __asm__ ("movi a8, " #x "@TLSFUNC\n\t" \ + "movi a10, " #x "@TLSARG\n\t" \ + "callx8.tls a8, " #x "@TLSCALL\n\t" \ + "mov %0, a10\n\t" \ + : "=r" (__l) \ + : \ + : "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15"); \ + __l; }) + +#define TLS_LD(x) \ + ({ int *__l; \ + __asm__ ("movi a8, " #x "@TLSFUNC\n\t" \ + "movi a10, " #x "@TLSARG\n\t" \ + "callx8.tls a8, " #x "@TLSCALL\n\t" \ + "movi %0, " #x "@TPOFF\n\t" \ + "add %0, %0, a10\n\t" \ + : "=r" (__l) \ + : \ + : "a8", "a9", "a10", "a11", "a12", "a13", "a14", "a15"); \ + __l; }) + +#define TLS_IE(x) TLS_LE(x) + +#define TLS_LE(x) \ + ({ int *__l; \ + int __t; \ + __asm__ ("rur %0, threadptr\n\t" \ + "movi %1, " #x "@TPOFF\n\t" \ + "add %0, %0, %1\n\t" \ + : "=r" (__l), "=r" (__t) ); \ + __l; }); \ + + #elif !defined TLS_LE || !defined TLS_IE \ || !defined TLS_LD || !defined TLS_GD # error "No support for this architecture so far." diff --git a/test/unistd/Makefile.in b/test/unistd/Makefile.in index ed33d9ae8..44ff36087 100644 --- a/test/unistd/Makefile.in +++ b/test/unistd/Makefile.in @@ -11,6 +11,10 @@ ifeq ($(UCLIBC_LINUX_SPECIFIC),) TESTS_DISABLED += tst-fallocate endif +ifeq ($(TARGET_avr32),y) +TESTS_DISABLED += tst-fallocate tst-posix_fallocate tst-fallocate64 +endif + # The logic is similar for HAS_ADVANCED_REALTIME and # tst-posix_fallocate/tst-posix_fallocate64 ifeq ($(UCLIBC_HAS_ADVANCED_REALTIME),) @@ -25,6 +29,8 @@ else # reordering is not supported, behaves as if POSIXLY_CORRECT would be set OPTS_tstgetopt := -a -b -cfoobar --required foobar --optional=bazbug --none --colou --color --colour random endif +# for embedded systems 4 GB disk space is not available +TESTS_DISABLED += tst-posix_fallocate64 # getconf.c lives in utils/ # Testsuite cannot currently be built with O= anyway, so hardcode path here |