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2011-03-03guard IPv6 stuffPeter S. Mazinger
disable IPv6 related stuff if feature is disabled. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-03-03add UCLIBC_STRICT_HEADERS config optionPeter S. Mazinger
Add config option to disable the visibility of structures/constants that should not be visible unless a feature is enabled. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-03-03include features.hPeter S. Mazinger
include features.h to make the next ifdef work. Signed-off-by: Peter S. Mazinger <ps.m@gmx.net>
2011-03-03ldso: use ADDR_ALIGN instead of hard-coded valueCarmelo Amoroso
Use ADDR_ALIGN to align the minvma when loading shared libraries instead of the hard coded 0xffffU value. This fixes teh stand/alone support on ARM as reported in bug #3133. Signed-off-by: Sven Ola <sven-ola@gmx.de> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-02-25nptl:arm: add a wrapper for .cfi_sections pseudo-opsCarmelo Amoroso
ARM disables by default the support for ASM CFI directives. Anyway using an old version of binutils that does not support some new pseudo-op, the build fails as below: AS libpthread/nptl/sysdeps/unix/sysv/linux/close.oS libpthread/nptl/sysdeps/unix/sysv/linux/close.S: Assembler messages: libpthread/nptl/sysdeps/unix/sysv/linux/close.S:9: Error: unknown pseudo-op: `.cfi_sections' The problem is that the .cfi_sections pseudo should be wrapped by a macro that expands to nothing when the CFI is off. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com> CC: Khem Ray <ray.khem@gmail.com>
2011-02-24linuxthreads.old: fix nommu initial thread stack detectionMike Frysinger
Because the nommu address space is flat, and the application stack can literally be located anywhere, we cannot rely on the assumptions that the mmu port gets away with. Namely, that the first thread's stack lives at the top of memory and nothing will be created above it. Currently, the code rounds the current stack up a page and sets that as the "top" of the stack, and then marks the "bottom" of the stack as "1". Then as new threads are created, this assumption is further refined by slowly backing off the "bottom" when a new stack is created within the range of the initial stack. Simple ascii example (tid0 is the initial thread): 1 thread: [bos tid0 stack tos] 2 threads: [ tid0 stack ] [tid1 stack] 3 threads: [ tid0 stack ] [tid1 stack] [tid2 stack] As you can kind of see, this algorithm operates on one basic assumption: the initial top of stack calculation is the absolute top of the stack. While this assumption was fairly safe in the original nommu days of yore where the only file format was FLAT (which defaults to a 4KiB stack -- exactly 1 page), and memory was fairly tight, we can see that this falls apart pretty quickly as soon as the initial stack is larger than a page. The issue that crops up now is simple to hit: start an application with an 8KiB stack, execute some functions that put pressure on the stack so that it exceeds 4KiB, then start up some threads. The initial tos will be rounded up by a page, but this is actually the middle of the stack. Now when the initial thread returns from its functions (thus unwinding the stack) and tries to call something which calls back into libpthread, the thread_self() func fails to detect itself as the initial thread as the current stack is now above the tos. The __pthread_find_self() func kicks in, walks all the thread arrays, fails to find a hit, and then walks into uninitialized memory for the thread descriptor. Use of this garbage memory has obvious results -- things fall down & go boom. To address this, I extend the current algorithm to automatically scale back both the bottom and the top stack limits of the initial thread. We use the current stack pointer at "thread boot time" only as a single known point. The initial thread stack bottom is set to the bottom of memory and the initial thread stack top is set to the top of memory. Then as we create new stack threads, we figure out whether the new stack is above or below the single known good address, and then scale back either the tos or the bos accordingly. Reviewed-by: Steven J. Magnani <steve@digidescorp.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-24unify stub logicMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-22bfin: fix fp reference in _JMPBUF_UNWINDSMike Frysinger
We want to access the frame pointer, so do so directly rather than "overflowing" the pregs array and ending up at the fp member. This fixes the Blackfin build warnings: libpthread/linuxthreads.old/ptlongjmp.c: In function 'pthread_cleanup_upto': libpthread/linuxthreads.old/ptlongjmp.c:35: warning: array subscript is above array bounds libpthread/linuxthreads.old/ptlongjmp.c:56: warning: array subscript is above array bounds Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-22tempname: fix int precision warningsMike Frysinger
The printf precision takes an integer, not a size_t. Otherwise we get: libc/misc/internals/tempname.c: In function '___path_search': libc/misc/internals/tempname.c:116: warning: field precision should have type 'int', but argument 3 has type 'size_t' field precision should have type 'int', but argument 5 has type 'size_t' Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-22nptl: imit waitpid just for MIPS O32Bernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-21ldso: fix fdpic buildsMike Frysinger
Commit 33cb7f0b4 tried to add a small optimization for skipping unnecessary .dynamic adjustments, but did so by referencing an opaque type. While this works for non-fdpic targets (since the type can be cast to an integer), it falls apart for fdpic targets where the type is actually a structure. Since FDPIC can't support this optimization without walking a series of linked structures, just skip it. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-21bfin: add support for new cacheflush syscallSteve Kilbane
Newer gcc's will generate a call to cacheflush when updating jump tables, and that has to be done in kernel space (to avoid hardware anomalies). So make sure uClibc provides that symbol. Signed-off-by: Steve Kilbane <steve@whitecrow.demon.co.uk> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-21bfin: fix sram/dma syscall definitionsSteve Kilbane
Once we pull in the header, we're forced to declare the syscall with all the right types. Signed-off-by: Steve Kilbane <steve@whitecrow.demon.co.uk> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-21bfin: add missing GNU-stack markings to __longjmpMike Frysinger
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2011-02-16buildsys: fix inverted logic with thread implsBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14buildsys: use kbuild styleBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14buildsys: remove wrong fileBernhard Reutner-Fischer
Somehow Makefile.in ended in there, remove it. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14arm: use EABI per defaultBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14regex: remove set but not used variableBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14ldso: remove now unused variableBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14nptl: fix typo in buildsysBernhard Reutner-Fischer
0f85b228 used 'filter-pout' instead of 'filter-out'. Fix that. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-14FORMAT_FDPIC_ELF: only for FRV and BFINBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-11Fix memory leak in dlopen()/dlclose().Philip Craig
The linked list of library dependencies created by dlopen() was not being freed by dlclose(). Signed-off-by: Philip Craig <philipjcraig@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-11Fix GNU make v3.80 compatibilityKevin Cernekee
Commits 1f6601a and 094d82d introduced the "else ifeq" construct, which requires GNU make v3.81 or higher. This breaks the build on RHEL4 hosts. Signed-off-by: Kevin Cernekee <cernekee@gmail.com> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-11arm: use CAS gcc builtin if SI-mode pattern is availableBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-09TODO: updateBernhard Reutner-Fischer
Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-09i386: extend IMA guards to also cover LTOBernhard Reutner-Fischer
See GCC PR47577; TODO: Remove them. Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-09*printf: Violation of precision with null stringJones Desougi
When a string format is processed and the argument is NULL, this yields "(null)" regardless of precision. This does not make sense, precision should not be exceeded. A simple test shows that glibc outputs nothing if precision is smaller than six and the attached patch implements this same behaviour. Consider the not uncommon case of strings implemented like this: struct string { int len; char *ptr; }; There is often no nultermination and they may be printed like this: printf("%.*s", string.len, string.ptr); If len is 0 then ptr may be anything, but NULL is a common value. Obviously the empty string would be expected, not "(null)". Signed-off-by: Jones Desougi <jones.desougi@27m.se> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-09sync bits/socket.h PF_* / AF_* values with 2.6.38-rc3Peter Korsgaard
A number of new address / protocol families have been added over the years, so sync with Linux 2.6.38-rc3, adding CAN, ISDN, Phonet, Zigbee, .. which are starting to be used by applications. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-09arm: mv nptl specific atomic impl to common placeBernhard Reutner-Fischer
Thanks to Nitin Garg for notincing! Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-02-06fix a problem with hidden getutent in non-threaded buildsDenys Vlasenko
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
2011-02-02arm: fix the static link problem for ARM due to undefined __tls_get_addrNitin Garg
Signed-off-by: Nitin Garg <nitingarg98@gmail.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-02-01nios2: Name architecture correctly in endian.h headerTobias Klauser
Nios II is not i386 :-) Signed-off-by: Tobias Klauser <tklauser@distanz.ch> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-29nptl/mips64: Fix build when using mips64 and ABIs other than o32Khem Raj
Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-01-29mips: avoid segmentation fault when RLD_MAP is 0Richard Braun
Signed-off-by: Richard Braun <rbraun@sceen.net> Acked-by: Joakim Tjernlund <joakim.tjernlund@transmode.se> Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-01-25libc: fix linker script generation for libubacktrace.soFilippo Arcidiacono
Fix libc.so linker script generation to add libubacktrace AS_NEEDED entry using MULTILIB_DIR instead of hard-coded "lib". Signed-off-by: Filippo Arcidiacono <filippo.arcidiacono@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-21stdio: fix diagnostic messageBernhard Reutner-Fischer
harmless copy'n paste error in #error Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-01-21bump version to 0.9.32-rc2-gitCarmelo Amoroso
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20release 0.9.32-rc2Carmelo Amoroso
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20nptl: Fix __USER_LABEL_PREFIX__ concatenatioWill Newton
The current C macro magic does not correctly concatenate the __USER_LABEL_PREFIX__ string on architectures where it has a non-empty value. We need to use __stringify to get the desired behaviour. Signed-off-by: Will Newton <will.newton@imgtec.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20nptl: fix start_thread() for _STACK_GROWS_UPWill Newton
This patch adds a working implementation of pthread_create for architectures where STACK_GROWS_UP. Signed-off-by: Matt Fleming <matthew.fleming@imgtec.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20ldso: get rid of _dl_lookup_hashCarmelo Amoroso
Now _dl_find_hash and _dl_lookup_hash are exactly the same, we can get rid of the _dl_lookup_hash, reverting the _dl_find_hash from a wrapper of _dl_lookup_hash to its original role. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Add protected symbols support for all architecturesSalvatore Cro
Protected symbols are global symbols for which interposition is not allowed. We manage them in generic _dl_lookup_hash function. To handle protected symbols we need to get a reference to the module that defines the symbol itself. So we pass a new parameter 'struct symbol_ref' to the __dl_lookup_hash that is defined as below: struct symbol_ref { const ElfW(Sym) *sym; struct elf_resolve *tpnt; }; The tpnt field is used as an ouput parameter and refers to the module which defines the protected symbol. Further it can be used as output parameter for TLS relocations and FDPIC case. The sym field is instead used as an input parameter to detect the visibility of the symbol we are looking-up. In this way we get rid of different signatures for _dl_lookup_hash, allowing to remove the _dl_find_hash wrapper. This new structure is also suitable for prelink integration. Signed-off-by: Salvatore Cro <salvatore.cro@st.com> Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Revert "ldso/arm: Correct protected symbol resolution"Carmelo Amoroso
This reverts commit 48fb264beaac8114e5ac3e80e70dda473fbce96d. The generic implementation will cover all the architectures handling the protected symbols in _dl_lookup_hash [ldso/ldso/dl-hash.c] Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Revert "ldso_sh: add support for protected symbols to SH"Carmelo Amoroso
This reverts commit 74407db52d3953c7f3c6b8a53661cfc96cb07e22. The generic implementation will cover all the architectures handling the protected symbols in _dl_lookup_hash [ldso/ldso/dl-hash.c] Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-20Revert "ldso/i386: support protected symbols"Carmelo Amoroso
This reverts commit ba38f0cec27b91cc7c605417ad047c4dc77d732f. The generic implementation will cover all the architectures handling the protected symbols in _dl_lookup_hash [ldso/ldso/dl-hash.c] Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
2011-01-15cris: Fix build issuesKhem Raj
Thanks Waldemar Brodkorb for reporting Signed-off-by: Khem Raj <raj.khem@gmail.com>
2011-01-11syslog: fix 'everyone logs with user facility'Roman I Khimov
It's been found that on uclibc-based system most of the programs log with 'user' facility despite the calls to openlog() with other facilities explicitly set. Most but not all. Investigating that I've found that the ones logging with proper facilities used LOG_NDELAY in openlog(). The problem is that LogFacility is overwritten in openlog_intern and LOG_USER is passed to it from vsyslog() no matter what the program set with openlog(). Signed-off-by: Roman I Khimov <khimov@altell.ru> Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-01-11__psfs_parse_spec: always use long int for %pBernhard Reutner-Fischer
closes bug #3037 Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
2011-01-06buildsys: headers target should not depend on sysnum.hCarmelo Amoroso
The generation of the sysnum.h has to be a prerequisite of 'pregen' target instead of headers, because it needs the compiler already available. The so called C bootstrap headers are required to build the compiler by invoking 'make headers', so the 'headers' target cannot relies itself on the compiler to be invoked. Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
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