diff options
Diffstat (limited to 'libpthread/nptl/sysdeps/sparc')
19 files changed, 639 insertions, 0 deletions
diff --git a/libpthread/nptl/sysdeps/sparc/Makefile b/libpthread/nptl/sysdeps/sparc/Makefile new file mode 100644 index 000000000..81bddf688 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/Makefile @@ -0,0 +1,3 @@ +ifeq ($(subdir),csu) +gen-as-const-headers += tcb-offsets.sym +endif diff --git a/libpthread/nptl/sysdeps/sparc/Makefile.arch b/libpthread/nptl/sysdeps/sparc/Makefile.arch new file mode 100644 index 000000000..632b75b4f --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/Makefile.arch @@ -0,0 +1,53 @@ +# Makefile for uClibc NPTL +# +# Copyright (C) 2005 Steven J. Hill <sjhill@uclibc.org> +# +# Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball. +# + +libpthread_CSRC = sparc32/pthread_spin_lock.c \ + sparc32/pthread_spin_trylock.c + +CFLAGS-pthread_spin_lock.c += -D_GNU_SOURCE + +CFLAGS-sparc = $(SSP_ALL_CFLAGS) +#CFLAGS:=$(CFLAGS:-O1=-O2) + +PTHREAD_ARCH_DIR := $(top_srcdir)libpthread/nptl/sysdeps/sparc +PTHREAD_ARCH_OUT := $(top_builddir)libpthread/nptl/sysdeps/sparc +PTHREAD_ARCH_OBJ := $(patsubst %.S,$(PTHREAD_ARCH_OUT)/%.o,$(libpthread_SSRC)) +PTHREAD_ARCH_OBJ += $(patsubst %.c,$(PTHREAD_ARCH_OUT)/%.o,$(libpthread_CSRC)) + +ifeq ($(DOPIC),y) +libpthread-a-y += $(PTHREAD_ARCH_OBJ:.o=.os) +else +libpthread-a-y += $(PTHREAD_ARCH_OBJ) +endif +libpthread-so-y += $(PTHREAD_ARCH_OBJ:.o=.oS) + +libpthread-nomulti-y += $(PTHREAD_ARCH_OBJ) + +objclean-y += nptl_arch_clean +headers_clean-y += nptl_arch_headers_clean + +# +# Create 'tcb-offsets.h' header file. +# +CFLAGS-tcb-offsets.c = -S + +$(PTHREAD_ARCH_OUT)/tcb-offsets.c: $(PTHREAD_ARCH_DIR)/tcb-offsets.sym + $(do_awk) $(top_srcdir)extra/scripts/gen-as-const.awk $< > $@ + +$(PTHREAD_ARCH_OUT)/tcb-offsets.s: $(PTHREAD_ARCH_OUT)/tcb-offsets.c + $(compile.c) + +$(PTHREAD_ARCH_OUT)/tcb-offsets.h: $(PTHREAD_ARCH_OUT)/tcb-offsets.s + $(do_sed) -n "s/^.*@@@name@@@\([^@]*\)@@@value@@@[^0-9Xxa-fA-F-]*\([0-9Xxa-fA-F-][0-9Xxa-fA-F-]*\).*@@@end@@@.*$\/#define \1 \2/p" $< > $@ + +pregen-headers-$(UCLIBC_HAS_THREADS_NATIVE) += $(PTHREAD_ARCH_OUT)/tcb-offsets.h + +nptl_arch_headers_clean: + $(do_rm) $(addprefix $(PTHREAD_ARCH_OUT)/tcb-offsets., c s h) + +nptl_arch_clean: + $(do_rm) $(addprefix $(PTHREAD_ARCH_OUT)/*., o os oS) diff --git a/libpthread/nptl/sysdeps/sparc/dl-tls.h b/libpthread/nptl/sysdeps/sparc/dl-tls.h new file mode 100644 index 000000000..6edf8d525 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/dl-tls.h @@ -0,0 +1,29 @@ +/* Thread-local storage handling in the ELF dynamic linker. SPARC 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + + +/* 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); diff --git a/libpthread/nptl/sysdeps/sparc/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/sparc/jmpbuf-unwind.h new file mode 100644 index 000000000..6cbb37baf --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/jmpbuf-unwind.h @@ -0,0 +1,5 @@ +#if defined(__arch64__) +#include "sparc64/jmpbuf-unwind.h" +#else +#include "sparc32/jmpbuf-unwind.h" +#endif diff --git a/libpthread/nptl/sysdeps/sparc/pthreaddef.h b/libpthread/nptl/sysdeps/sparc/pthreaddef.h new file mode 100644 index 000000000..d4695c47d --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/pthreaddef.h @@ -0,0 +1,5 @@ +#if defined(__arch64__) +#include "sparc64/pthreaddef.h" +#else +#include "sparc32/pthreaddef.h" +#endif diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h new file mode 100644 index 000000000..71a358209 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/jmpbuf-unwind.h @@ -0,0 +1,32 @@ +/* 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <setjmp.h> +#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)) + +/* We use the normal longjmp for unwinding. */ +extern __typeof(longjmp) __libc_longjmp attribute_noreturn; +#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c b/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c new file mode 100644 index 000000000..d3c6e3049 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_lock.c @@ -0,0 +1,40 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" + +int +pthread_spin_lock (pthread_spinlock_t *lock) +{ + __asm __volatile + ("1: ldstub [%0], %%g2\n" + " orcc %%g2, 0x0, %%g0\n" + " bne,a 2f\n" + " ldub [%0], %%g2\n" + ".subsection 2\n" + "2: orcc %%g2, 0x0, %%g0\n" + " bne,a 2b\n" + " ldub [%0], %%g2\n" + " b,a 1b\n" + ".previous" + : /* no outputs */ + : "r" (lock) + : "g2", "memory", "cc"); + return 0; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c new file mode 100644 index 000000000..bcc3158fd --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/pthread_spin_trylock.c @@ -0,0 +1,29 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include "pthreadP.h" + +int +pthread_spin_trylock (pthread_spinlock_t *lock) +{ + int res; + __asm __volatile ("ldstub [%1], %0" : "=r" (res) : "r" (lock) : "memory"); + return res == 0 ? 0 : EBUSY; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/pthreaddef.h b/libpthread/nptl/sysdeps/sparc/sparc32/pthreaddef.h new file mode 100644 index 000000000..9908df9e9 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/pthreaddef.h @@ -0,0 +1,40 @@ +/* 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. */ + +/* 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 (stack_pointer + (2 * 64)) +register char *stack_pointer __asm__("%sp"); + +/* XXX Until we have a better place keep the definitions here. */ + +/* While there is no such syscall. */ +#define __exit_thread_inline(val) \ + INLINE_SYSCALL (exit, 1, (val)) diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c new file mode 100644 index 000000000..8880f535b --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_lock.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" + +int +pthread_spin_lock (pthread_spinlock_t *lock) +{ + __asm __volatile + ("1: ldstub [%0], %%g2\n" + " brnz,pn %%g2, 2f\n" + " membar #StoreLoad | #StoreStore\n" + ".subsection 2\n" + "2: ldub [%0], %%g2\n" + " brnz,pt %%g2, 2b\n" + " membar #LoadLoad\n" + " b,a,pt %%xcc, 1b\n" + ".previous" + : /* no outputs */ + : "r" (lock) + : "g2", "memory"); + return 0; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c new file mode 100644 index 000000000..3b20a2180 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_trylock.c @@ -0,0 +1 @@ +#include <sparc64/pthread_spin_trylock.c> diff --git a/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c new file mode 100644 index 000000000..482cbe3d7 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc32/sparcv9/pthread_spin_unlock.c @@ -0,0 +1 @@ +#include <sparc64/pthread_spin_unlock.c> diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h b/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h new file mode 100644 index 000000000..5cef8b1cf --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc64/jmpbuf-unwind.h @@ -0,0 +1,31 @@ +/* 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <setjmp.h> +#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)) + +/* We use the normal lobngjmp for unwinding. */ +#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val) diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c new file mode 100644 index 000000000..77171d9b9 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_lock.c @@ -0,0 +1,39 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" + +int +pthread_spin_lock (pthread_spinlock_t *lock) +{ + __asm __volatile + ("1: ldstub [%0], %%g5\n" + " brnz,pn %%g5, 2f\n" + " membar #StoreLoad | #StoreStore\n" + ".subsection 2\n" + "2: ldub [%0], %%g5\n" + " brnz,pt %%g5, 2b\n" + " membar #LoadLoad\n" + " b,a,pt %%xcc, 1b\n" + ".previous" + : /* no outputs */ + : "r" (lock) + : "g5", "memory"); + return 0; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c new file mode 100644 index 000000000..2bda809da --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_trylock.c @@ -0,0 +1,34 @@ +/* Copyright (C) 2003 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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include <errno.h> +#include "pthreadP.h" + +int +pthread_spin_trylock (pthread_spinlock_t *lock) +{ + int res; + __asm __volatile + ("ldstub [%1], %0\n" + "membar #StoreLoad | #StoreStore" + : "=r" (res) + : "r" (lock) + : "memory"); + return res == 0 ? 0 : EBUSY; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c new file mode 100644 index 000000000..7037675a2 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthread_spin_unlock.c @@ -0,0 +1,30 @@ +/* pthread_spin_unlock -- unlock a spin lock. Generic version. + Copyright (C) 2003 Free Software Foundation, Inc. + This file is part of the GNU C Library. + Contributed by Paul Mackerras <paulus@au.ibm.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, write to the Free + Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA + 02111-1307 USA. */ + +#include "pthreadP.h" +#include <atomic.h> + +int +pthread_spin_unlock (pthread_spinlock_t *lock) +{ + __asm __volatile ("membar #StoreStore | #LoadStore"); + *lock = 0; + return 0; +} diff --git a/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h b/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h new file mode 100644 index 000000000..ec7651211 --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/sparc64/pthreaddef.h @@ -0,0 +1,40 @@ +/* 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. */ + +/* Default stack size. */ +#define ARCH_STACK_DEFAULT_SIZE (4 * 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 4096 + +/* Alignment requirement for TCB. */ +#define TCB_ALIGNMENT 16 + + +/* Location of current stack frame. */ +#define CURRENT_STACK_FRAME (stack_pointer + (2 * 128)) +register char *stack_pointer __asm__("%sp"); + +/* XXX Until we have a better place keep the definitions here. */ + +/* While there is no such syscall. */ +#define __exit_thread_inline(val) \ + INLINE_SYSCALL (exit, 1, (val)) diff --git a/libpthread/nptl/sysdeps/sparc/tcb-offsets.sym b/libpthread/nptl/sysdeps/sparc/tcb-offsets.sym new file mode 100644 index 000000000..923af8a5b --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/tcb-offsets.sym @@ -0,0 +1,7 @@ +#include <sysdep.h> +#include <tls.h> + +MULTIPLE_THREADS_OFFSET offsetof (tcbhead_t, multiple_threads) +POINTER_GUARD offsetof (tcbhead_t, pointer_guard) +PID offsetof (struct pthread, pid) +TID offsetof (struct pthread, tid) diff --git a/libpthread/nptl/sysdeps/sparc/tls.h b/libpthread/nptl/sysdeps/sparc/tls.h new file mode 100644 index 000000000..e93542c9f --- /dev/null +++ b/libpthread/nptl/sysdeps/sparc/tls.h @@ -0,0 +1,181 @@ +/* Definitions for thread-local data handling. NPTL/sparc version. + Copyright (C) 2003, 2005, 2006, 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, 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> +# include <stdlib.h> +# include <list.h> +# include <bits/kernel-features.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; + int multiple_threads; +#if __WORDSIZE == 64 + int gscope_flag; +#endif + uintptr_t sysinfo; + uintptr_t stack_guard; + uintptr_t pointer_guard; +#if __WORDSIZE != 64 + int gscope_flag; +#endif +#ifndef __ASSUME_PRIVATE_FUTEX + int private_futex; +#endif +} tcbhead_t; + +#else /* __ASSEMBLER__ */ +# include <tcb-offsets.h> +#endif /* __ASSEMBLER__ */ + +/* We require TLS support in the tools. */ +#define HAVE_TLS_SUPPORT +#define HAVE___THREAD 1 +#define HAVE_TLS_MODEL_ATTRIBUTE 1 + +/* 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 <descr.h> + +register struct pthread *__thread_self __asm__("%g7"); + +/* This is the size of the initial TCB. Can't be just sizeof (tcbhead_t), + because NPTL getpid, __libc_alloca_cutoff etc. need (almost) the whole + struct pthread even when not linked with -lpthread. */ +# define TLS_INIT_TCB_SIZE sizeof (struct pthread) + +/* Alignment requirements for the initial TCB. */ +# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread) + +/* This is the size of the TCB. */ +# define TLS_TCB_SIZE sizeof (struct pthread) + +/* Alignment requirements for the TCB. */ +# define TLS_TCB_ALIGN __alignof__ (struct pthread) + +/* 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 *) __thread_self)->dtv = (DTV)) + +/* Return dtv of given thread descriptor. */ +# define GET_DTV(descr) \ + (((tcbhead_t *) (descr))->dtv) + +/* Code to initially initialize the thread pointer. */ +# define TLS_INIT_TP(descr, secondcall) \ + (__thread_self = (__typeof (__thread_self)) (descr), NULL) + +/* Return the address of the dtv for the current thread. */ +# define THREAD_DTV() \ + (((tcbhead_t *) __thread_self)->dtv) + +/* Return the thread descriptor for the current thread. */ +#define THREAD_SELF __thread_self + +/* Magic for libthread_db to know how to do THREAD_SELF. */ +# define DB_THREAD_SELF_INCLUDE <sys/ucontext.h> +# define DB_THREAD_SELF \ + REGISTER (32, 32, REG_G7 * 4, 0) REGISTER (64, 64, REG_G7 * 8, 0) + +/* 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) + +/* Set the stack guard field in TCB head. */ +#define THREAD_SET_STACK_GUARD(value) \ + THREAD_SETMEM (THREAD_SELF, header.stack_guard, value) +# define THREAD_COPY_STACK_GUARD(descr) \ + ((descr)->header.stack_guard \ + = THREAD_GETMEM (THREAD_SELF, header.stack_guard)) + +/* Get/set the stack guard field in TCB head. */ +#define THREAD_GET_POINTER_GUARD() \ + THREAD_GETMEM (THREAD_SELF, header.pointer_guard) +#define THREAD_SET_POINTER_GUARD(value) \ + THREAD_SETMEM (THREAD_SELF, header.pointer_guard, value) +# define THREAD_COPY_POINTER_GUARD(descr) \ + ((descr)->header.pointer_guard = THREAD_GET_POINTER_GUARD ()) + +/* 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 */ |