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2013-12-19Update texinfo.tex, config.guess, config.sub from upstream.Joseph Myers
This patch updates various miscellaneous files we take from upstream GNU sources (texinfo.texi, config.guess, config.sub - various others haven't changed upstream since we last updated them) to their current upstream versions. Tested x86_64. * manual/texinfo.tex: Update to version 2013-11-26.10 with trailing whitespace removed. * scripts/config.guess: Update to version 2013-11-29. * scripts/config.sub: Update to version 2013-10-01.
2013-12-19Add _DEFAULT_SOURCE feature test macro.Joseph Myers
This patch adds a feature test macro _DEFAULT_SOURCE to enable the default set of header declarations. The intention is: if _DEFAULT_SOURCE is not used there is no change to the set of __USE_* macros glibc defines; if it's used on its own, and without compiler options such as -std=c99 that define __STRICT_ANSI__, again, there is no change; if it's used together with the macros it approximately (i.e., apart from __USE_POSIX_IMPLICITLY) implies (-D_BSD_SOURCE -D_SVID_SOURCE -D_POSIX_C_SOURCE=200809L), again, there is no change. Otherwise, it causes the relevant features to be enabled, even if __STRICT_ANSI__, or another feature test macro, would cause them to be disabled. This macro deliberately bundles the POSIX.1-2008 (non-X/Open) functionality with the BSD/SVID/"misc" functionality, rather than defining a macro that gives just the latter, as many of the header cleanups resulting from removing _BSD_SOURCE and _SVID_SOURCE support are only possible when BSD/SVID/"misc" is always bundled with POSIX.1-2008. Tested x86_64. * include/features.h: Update comment documenting feature test macros. Mention _DEFAULT_SOURCE in comment. [_GNU_SOURCE] (_DEFAULT_SOURCE): Undefine and redefine. [_DEFAULT_SOURCE]: Undefine and redefine _DEFAULT_SOURCE, _BSD_SOURCE and _SVID_SOURCE. [!__STRICT_ANSI__ && !_ISOC99_SOURCE && !_POSIX_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE && !_BSD_SOURCE && !_SVID_SOURCE]: Likewise. [_DEFAULT_SOURCE && !_POSIX_SOURCE && !_POSIX_C_SOURCE] (__USE_POSIX_IMPLICITLY): Define. [_DEFAULT_SOURCE && !_POSIX_SOURCE && !_POSIX_C_SOURCE] (_POSIX_SOURCE): Undefine and redefine. [_DEFAULT_SOURCE && !_POSIX_SOURCE && !_POSIX_C_SOURCE] (_POSIX_C_SOURCE): Likewise. * manual/creature.texi (_DEFAULT_SOURCE): Document. (Feature Test Macros): Update documentation of default features.
2013-12-19Stop partial menu generation in INSTALL fileAllan McRae
The commit d136c6dc resulted in menu text for the "Top" node being added to the INSTALL file on regeneration. As the full menu is not displayed in the plain text file anyway, suppress the menu section completely to avoid the additional text. Also regenerate the INSTALL file to commit a small formatting change introduced in the same commit.
2013-12-18Add error reporting (via errno) to getauxval().Brooks Moses
[BZ 15846] As discussed in the recent thread on my $EXEC_ORIGIN patch and in BZ 15846, getauxval() presently has no unambiguous way of reporting an error condition. It currently returns zero on error, but this may also be a valid result for some auxv entries. As there is no clear invalid result for all current and future auxv entries, this patch sets errno (following a suggestion in the BZ entry). This version of the patch also adds documentation and tests for the value-not-found conditions in getauxval().
2013-12-18Add missing deftp to fix commit 4d84e6addd62bdc256627af.Ondřej Bílka
2013-12-18Update documentation after dropping PER_THREAD conditional.Ondřej Bílka
In probes documentation we described what happens when PER_THREAD is disabled which is now not relevant.
2013-12-17Support TZ transition times < 00:00:00.Paul Eggert
This is needed for version-3 tz-format files; it supports time stamps past 2037 for America/Godthab (the only entry in the tz database for which this change is relevant). * manual/time.texi (TZ Variable): Document transition times from -167:59:59 through -00:00:01. * time/tzset.c (tz_rule): Time of day is now signed. (__tzset_parse_tz): Parse negative time of day.
2013-12-17Document TZ transition times >= 25:00:00.Paul Eggert
* manual/time.texi (TZ Variable): Document transition times from 25:00:00 through 167:59:59. These are already supported, and this support will help with version-3 tz-format files.
2013-12-17* manual/time.texi (TZ Variable): Modernize North America examplePaul Eggert
to reflect current (i.e., 2007-and-later) daylight saving rules.
2013-12-17* manual/time.texi (TZ Variable): POSIX.1 hour can be 24.Paul Eggert
2013-12-17Remove __FAVOR_BSD.Joseph Myers
2013-12-16manual/memory.texi: Document aligned_alloc.Will Newton
ChangeLog: 2013-12-16 Will Newton <will.newton@linaro.org> * manual/memory.texi (Malloc Examples): Mention aligned_alloc. (Aligned Memory Blocks): Add documentation for aligned_alloc and suggest it as an alternative to posix_memalign. (Hooks for Malloc): Document __memalign_hook is also called for aligned_alloc. (Summary of Malloc): Add summary for aligned alloc. Document __memalign_hook is also called for aligned_alloc.
2013-12-16manual/memory.texi: Bring aligned allocation docs up to date.Will Newton
The current documentation suggests using memalign and valloc which are now considered obsolete, so suggest using posix_memalign instead. Also document the possible error return and errno values for memalign and posix_memalign and improve documentation of __memalign_hook. ChangeLog: 2013-12-16 Will Newton <will.newton@linaro.org> * manual/memory.texi (Malloc Examples): Clarify default alignment documentation. Suggest posix_memalign rather than memalign or valloc. (Aligned Memory Blocks): Remove suggestion to use memalign or valloc. Remove obsolete comment about BSD. Document memalign errno values and mark the function obsolete. Document posix_memalign returned error codes. Mark valloc as obsolete. (Hooks for Malloc): __memalign_hook is also called for posix_memalign and valloc. (Summary of Malloc): Add posix_memalign to function summary. __memalign_hook is also called for posix_memalign and valloc.
2013-12-05BZ #15941: Fix INSTALL file regeneration failure with makeinfo 5.xSiddhesh Poyarekar
I have skipped regenerating the INSTALL file because we want to continue using the 4.x generator for now.
2013-12-04Clarify documentation on how functions use timezone. Fixes bug 926.Paul Eggert
2013-12-02Document shm_open.Ondřej Bílka
2013-11-28Document libm accuracy goals.Joseph Myers
2013-11-28Document some libm error handling intents.Joseph Myers
2013-11-20Consolidate valloc/pvalloc code.Ondřej Bílka
To make malloc code more maintainable we make malloc and pvalloc share logic with memalign.
2013-11-20Add systemtap probe markers for sin, cos, asin and acosSiddhesh Poyarekar
2013-11-06manual/memory.texi: Remove register keyword from examples.Will Newton
The register keyword doesn't add any information to the examples and is not useful for modern compilers. ChangeLog: 2013-11-06 Will Newton <will.newton@linaro.org> * manual/memory.texi (Malloc Examples): Remove register keyword from examples.
2013-11-01Fix description of random according to POSIX. Fixes bug 7003Bruno Haible
2013-10-30rename configure.in to configure.acMike Frysinger
Autoconf has been deprecating configure.in for quite a long time. Rename all our configure.in and preconfigure.in files to .ac. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
2013-10-25Fix gethostbyname_r example. Fixes bug 2801.Ondřej Bílka
2013-10-25Acknowledge that fnmatch can fail. Fixes bug 14029.Ondřej Bílka
2013-10-25Document that mmap() returns MAP_FAILED on error, as per the POSIX standard.Fabrice Bauzac
2013-10-19Mention FIPS 140-2 compliance and Sun RPC.Carlos O'Donell
The Secure RPC implementation in glibc uses DES encryption during authentication of the user. This use of DES means that anyone using Sun RPC will likely not be compliant with FIPS 140-2 which forbids the use of DES. One solution to the compliance issue is to disable AUTH_DES and AUTH_KERB, both use DES, when in FIPS compliance mode. This is not a good idea because it disables all of the even mildly secure methods of authentication allowing only plain text methods. Instead we leave AUTH_DES and AUTH_KERB enabled in FIPS compliance mode and document the compliance issue in the manual. FIPS allows this, that is to say that if you can't fix it you must document the non-compliance. This commit adds documentation to that effect in the "DES encryption and password handling" section of the manual.
2013-10-11Add systemtap markers to math function slow pathsSiddhesh Poyarekar
Add systemtap probes to various slow paths in libm so that application developers may use systemtap to find out if their applications are hitting these slow paths. We have added probes for pow, exp, log, tan, atan and atan2.
2013-10-08Update gethostbyname2_r documentation. Fixes bug #156.Yogesh Chaudhari
2013-10-04Fix typo in manualSiddhesh Poyarekar
2013-10-03BZ #431 Fix manual of strncat/wcsncat.Ondřej Bílka
2013-09-28Revert "Remove references to non-existent content items in install.texi"Allan McRae
This reverts commit 583c76a7ce305d24e0625a22caed317b3e001d91 which breaks building info pages during "make install". Conflicts: ChangeLog
2013-09-27Remove references to non-existent content items in install.texiAllan McRae
These were left in when the installation section was split out into its own file.
2013-09-24Update to canonical freemanuals.texi file.Roland McGrath
2013-09-23manual: Fix a typo in `POSIX Threads' sectionMaciej W. Rozycki
2013-09-20Add malloc probes for sbrk and heap resizing.Alexandre Oliva
for ChangeLog * malloc/arena.c (new_heap): New memory_heap_new probe. (grow_heap): New memory_heap_more probe. (shrink_heap): New memory_heap_less probe. (heap_trim): New memory_heap_free probe. * malloc/malloc.c (sysmalloc): New memory_sbrk_more probe. (systrim): New memory_sbrk_less probe. * manual/probes.texi: Document them.
2013-09-20Add catch-all alloc retry probe.Alexandre Oliva
for ChangeLog * malloc/arena.c (arena_get_retry): Add memory_arena_retry probe. * manual/probes.texi: Document it.
2013-09-20Add probes for malloc retries.Alexandre Oliva
for ChangeLog * malloc/malloc.c (__libc_malloc): Add memory_malloc_retry probe. (__libc_realloc): Add memory_realloc_retry probe. (__libc_memalign): Add memory_memalign_retry probe. (__libc_valloc): Add memory_valloc_retry probe. (__libc_pvalloc): Add memory_pvalloc_retry probe. (__libc_calloc): Add memory_calloc_retry probe. * manual/probes.texi: Document them.
2013-09-20Add probes for malloc arena changes.Alexandre Oliva
for ChangeLog * malloc/arena.c (get_free_list): Add probe memory_arena_reuse_free_list. (reused_arena) [PER_THREAD]: Add probes memory_arena_reuse_wait and memory_arena_reuse. (arena_get2) [!PER_THREAD]: Likewise. * malloc/malloc.c (__libc_realloc) [!PER_THREAD]: Add probe memory_arena_reuse_realloc. * manual/probes.texi: Document them.
2013-09-20Add probes for all changes to malloc options.Alexandre Oliva
for ChangeLog * malloc/malloc.c (__libc_free): Add memory_mallopt_free_dyn_thresholds probe. (__libc_mallopt): Add multiple memory_mallopt probes. * manual/probes.texi: Document them.
2013-09-20Add first set of memory probes.Alexandre Oliva
for ChangeLog * malloc/malloc.c: Include stap-probe.h. (__libc_mallopt): Add memory_mallopt probe. * malloc/arena.c (_int_new_arena): Add memory_arena_new probe. * manual/probes.texi: New. * manual/Makefile (chapters): Add probes. * manual/threads.texi: Set next node.
2013-09-10Clarify documentation cross-referenceAllan McRae
The end of the "Parsing of Floats" subsection currently reads: The GNU C Library also provides '_l' versions of these functions, which take an additional argument, the locale to use in conversion. *Note Parsing of Integers::. Split the final note as it is unrelated to the above comment and reference it with "See also" instead.
2013-09-10Update pt_chown sections of the manualAllan McRae
The pt-chown binary is discussed in the "Running make install" section without clarification of the needed configure option. Clarify this and simplfy the discription which is already covered in the "Configuring and compiling" section.
2013-09-09Fix typo in strcoll exampleAllan McRae
2013-09-04Remove --disable-versioning.Joseph Myers
2013-08-30Fix then/than typos.Ondřej Bílka
2013-08-16CVE-2013-4237, BZ #14699: Buffer overflow in readdir_rFlorian Weimer
* sysdeps/posix/dirstream.h (struct __dirstream): Add errcode member. * sysdeps/posix/opendir.c (__alloc_dir): Initialize errcode member. * sysdeps/posix/rewinddir.c (rewinddir): Reset errcode member. * sysdeps/posix/readdir_r.c (__READDIR_R): Enforce NAME_MAX limit. Return delayed error code. Remove GETDENTS_64BIT_ALIGNED conditional. * sysdeps/unix/sysv/linux/wordsize-64/readdir_r.c: Do not define GETDENTS_64BIT_ALIGNED. * sysdeps/unix/sysv/linux/i386/readdir64_r.c: Likewise. * manual/filesys.texi (Reading/Closing Directory): Document ENAMETOOLONG return value of readdir_r. Recommend readdir more strongly. * manual/conf.texi (Limits for Files): Add portability note to NAME_MAX, PATH_MAX. (Pathconf): Add portability note for _PC_NAME_MAX, _PC_PATH_MAX.
2013-08-01Update manual/contrib.texiDavid S. Miller
* manual/contrib.texi: Update entry for Siddhesh Poyarekar. Add entries for Will Newton, Andi Kleen, David Holsgrove, and Ondrej Bilka.
2013-07-21CVE-2013-2207, BZ #15755: Disable pt_chown.Carlos O'Donell
The helper binary pt_chown tricked into granting access to another user's pseudo-terminal. Pre-conditions for the attack: * Attacker with local user account * Kernel with FUSE support * "user_allow_other" in /etc/fuse.conf * Victim with allocated slave in /dev/pts Using the setuid installed pt_chown and a weak check on whether a file descriptor is a tty, an attacker could fake a pty check using FUSE and trick pt_chown to grant ownership of a pty descriptor that the current user does not own. It cannot access /dev/pts/ptmx however. In most modern distributions pt_chown is not needed because devpts is enabled by default. The fix for this CVE is to disable building and using pt_chown by default. We still provide a configure option to enable hte use of pt_chown but distributions do so at their own risk.
2013-07-02Add a configure option to enable lock elision and disable by defaultAndi Kleen
Can be enabled with --enable-lock-elision=yes at configure time.
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