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* Deduplicate setenv.Ondřej Bílka2014-02-101-0/+2
| | | | | Setenv contained a code path that was redundant as it could be handled in general case.
* Remove am33 port.Joseph Myers2014-02-081-0/+2
| | | | | | This patch removes the am33 port (no other port #includes any files from it), as previously discussed (see <https://sourceware.org/ml/libc-ports/2014-01/msg00046.html>).
* Open development for 2.20 glibc-2.19.90Allan McRae2014-02-081-0/+5
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* Bug 15968 was fixed by commit 0748546f660d27a2ad29fa6174d456e2f6490758.Joseph Myers2014-02-071-8/+8
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* Bug 6981 was fixed by commit 1484e65736f4cab27e5051e0f06be8470e69af82.Joseph Myers2014-02-071-18/+18
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* BZ #16529: Fix pedantic warning with netinet/in.h.Carlos O'Donell2014-02-061-1/+1
| | | | | | | | | | | | | | | | | When compiling with pedantic the following warning is seen: gcc -Wall -pedantic -O0 -o test test.c In file included from test.c:3:0: /path/inet/netinet/in.h:111:21: warning: comma at end of \ enumerator list [-Wpedantic] IPPROTO_MH = 135, /* IPv6 mobility header. */ ^ It is valid C99 to have a trailing comma after the last item in an enumeration. However it is not valid C90. If possible glibc attempts to keep all headers C90 + long long without requiring C99 features. In this case it's easy to fix the headers and it removes the warning seem with -pedantic.
* Revert "microblaze BZ #15705: Define MMAP2_PAGE_SHIFT"David Holsgrove2014-02-061-12/+12
| | | | | | | | | | | This reverts commit 79b846ecc0275ceb02b5e2d3b03a34d7c43e6bf9. Conflicts: NEWS ports/ChangeLog.microblaze Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
* Revert "BZ 16133 has been fixed (async signal safe TLS)."Allan McRae2014-02-061-6/+6
| | | | | | | This reverts commit a494421f5268df333c589d71104a39bb6a9cff19. Conflicts: NEWS
* microblaze BZ #15705: Define MMAP2_PAGE_SHIFTDavid Holsgrove2014-02-051-12/+12
| | | | | | | | | | | | | Define MMAP2_PAGE_SHIFT to -1 for microblaze so the correct shift for the syscall is determined dynamically using getpagesize ports/ChangeLog.microblaze 2014-02-04 David Holsgrove <david.holsgrove@xilinx.com> * sysdeps/unix/sysv/linux/microblaze/mmap64.c: New file. Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
* Update NEWS for #16398Siddhesh Poyarekar2014-02-051-2/+2
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* [BZ #12751]Alexandre Oliva2014-01-311-1/+1
| | | | * manual/memory.texi: Document MTASC-safety properties.
* [BZ #16046] Static dlopen correction fallout fixes.Maciej W. Rozycki2014-01-311-7/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Fixes to address issues from BZ #15022 resolution, as follows: * TLS updates to csu/libc-tls.c -- we now have a proper main map, so there's no longer a need to create a separate fake one to keep TLS structures, * random updates to elf/dl-close.c -- LM_ID_BASE is now a valid name space ID for static executables as well, so assert that we don't unload the main map. Similarly dl_nns isn't supposed to be 0 for static executables anymore, * actual BZ #16046 fix to elf/dl-iteratephdr.c -- the dl_iterate_phdr special function for static executables isn't needed anymore, provided that l_phdr and l_phnum members of the main map have been properly initialized (done in _dl_non_dynamic_init in elf/dl-support.c now), * ld.so.cache loader update to elf/dl-load.c -- GL(dl_ns)[LM_ID_BASE]._ns_loaded is now always initialized in static executables so can become the fallback loader map to check for DF_1_NODEFLIB, provided that the l_flags_1 member of the main map has been properly initialized (done in elf/dl-support.c now); this also ensures previous semantics elsewhere in elf/dl-load.c, * matching updates to elf/dl-support.c -- to complement the two fixes above.
* Disable x87 inline functions for SSE2 mathH.J. Lu2014-01-291-1/+2
| | | | | | | When i386 and x86-64 mathinline.h was merged into a single mathinline.h, "gcc -m32" enables x87 inline functions on x86-64 even when -mfpmath=sse and SSE2 is enabled. It is a regression on x86-64. We should check __SSE2_MATH__ instead of __x86_64__ when disabling x87 inline functions.
* * manual/macros.texi: Introduce macros to document multiAlexandre Oliva2014-01-291-0/+3
| | | | | | thread, asynchronous signal and asynchronous cancellation safety properties. * manual/intro.texi: Introduce the properties themselves.
* Add bug entry for previous commit in NEWSSiddhesh Poyarekar2014-01-271-1/+1
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* Adjust pointers to triplets in netgroup query data (BZ #16474)Siddhesh Poyarekar2014-01-241-1/+1
| | | | | | | | | The _nss_*_getnetgrent_r query populates the netgroup results in the allocated buffer and then sets the result triplet to point to strings in the buffer. This is a problem when the buffer is reallocated since the pointers to the triplet strings are no longer valid. The pointers need to be adjusted so that they now point to strings in the reallocated buffer.
* PowerPC: Fix gettimeofday ifunc selectionAdhemerval Zanella2014-01-201-1/+1
| | | | | | | | | | | | The IFUNC selector for gettimeofday runs before _libc_vdso_platform_setup where __vdso_gettimeofday is set. The selector then sets __gettimeofday (the internal version used within GLIBC) to use the system call version instead of the vDSO one. This patch changes the check if vDSO is available to get its value directly instead of rely on __vdso_gettimeofday. This patch changes it by getting the vDSO value directly. It fixes BZ#16431.
* [AArch64] BZ #16169 Add CFI directives to clone.STom Tromey2014-01-201-4/+4
| | | | | | [BZ #16169] Add CFI directives to the AArch64 clone.S implementation and ensure that the FP in the child is zero'd in order to comply with AAPCS.
* Add BZ#16430 to NEWS.Adhemerval Zanella2014-01-161-1/+1
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* Mention addition of multiple precision fallback libm probes in NEWSSiddhesh Poyarekar2014-01-161-0/+3
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* Don't use alloca in addgetnetgrentX (BZ #16453)Siddhesh Poyarekar2014-01-161-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | addgetnetgrentX has a buffer which is grown as per the needs of the requested size either by using alloca or by falling back to malloc if the size is larger than 1K. There are two problems with the alloca bits: firstly, it doesn't really extend the buffer since it does not use the return value of the extend_alloca macro, which is the location of the reallocated buffer. Due to this the buffer does not actually extend itself and hence a subsequent write may overwrite stuff on the stack. The second problem is more subtle - the buffer growth on the stack is discontinuous due to block scope local variables. Combine that with the fact that unlike realloc, extend_alloca does not copy over old content and you have a situation where the buffer just has garbage in the space where it should have had data. This could have been fixed by adding code to copy over old data whenever we call extend_alloca, but it seems unnecessarily complicated. This code is not exactly a performance hotspot (it's called when there is a cache miss, so factors like network lookup or file reads will dominate over memory allocation/reallocation), so this premature optimization is unnecessary. Thanks Brad Hubbard <bhubbard@redhat.com> for his help with debugging the problem.
* Do not enable asynchronous cancellation in system. Fixes bug 14782.Ondřej Bílka2014-01-151-14/+14
| | | | | | We needlessly enabled thread cancellation before it was necessary. As only call that needs to be guarded is waitpid which is cancellation point we could remove cancellation altogether.
* Mention BZ 9721Paul Pluzhnikov2014-01-121-16/+16
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* BZ 16133 has been fixed (async signal safe TLS).Paul Pluzhnikov2014-01-111-5/+5
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* Add 15850 to NEWS.Ondřej Bílka2014-01-111-8/+9
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* Fix a thinko/typo in i686's memmove (aka __memmove_ia32).Yuriy Kaminskiy2014-01-091-1/+1
| | | | | * sysdeps/i386/i686/memmove.S (memmove): Compare distance between SRC and DEST against LEN.
* PowerPC: remove wrong truncl implementation for PowerPC64Adhemerval Zanella2014-01-081-1/+1
| | | | | | | | | | | | | | | The truncl assembly implementation (sysdeps/powerpc/powerpc64/fpu/s_truncl.S) returns wrong results for some inputs where first double is a exact integer and the precision is determined by second long double. Checking on implementation comments and history, I am very confident the assembly implementation was based on a version before commit 5c68d401698a58cf7da150d9cce769fa6679ba5f that fixes BZ#2423 (Errors in long double (ldbl-128ibm) rounding functions in glibc-2.4). By just removing the implementation and make the build select sysdeps/ieee754/ldbl-128ibm/s_truncl.c instead it fixes tgammal issues regarding wrong result sign.
* Fix ldbl-128ibm expm1l on large arguments (bug 16408).Joseph Myers2014-01-081-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16408, ldbl-128ibm expm1l returning NaN for some large arguments. The basic problem is that the approach of converting the exponent to the form n * log(2) + y, where -0.5 <= y <= 0.5, then computing 2^n * expm1(y) + (2^n - 1) falls over when 2^n overflows (starting slightly before the point where expm1 overflows, when y is negative and n is the least integer for which 2^n overflows). The ldbl-128 code, and the x86/x86_64 code, make expm1l fall back to expl for large positive arguments to avoid this issue. This patch makes the ldbl-128ibm code do the same. (The problem appears for the particular argument in the testsuite because the ldbl-128ibm code also uses an overflow threshold that's for ldbl-128 and is too big for ldbl-128ibm, but the problem described applies for large non-overflowing cases as well, although during the freeze is not a suitable time for making the expm1 tests cover cases close to overflow more thoroughly.) This leaves some code for large positive arguments in expm1l that is now dead. To keep the code for ldbl-128 and ldbl-128ibm similar, and to avoid unnecessary changes during the freeze, the patch doesn't remove it; instead I propose to file a bug in Bugzilla as a reminder that this code (for overflow, including errno setting, and for arguments of +Inf) is no longer needed and should be removed from both those expm1l implementations. Tested powerpc32. * sysdeps/ieee754/ldbl-128ibm/s_expm1l.c (__expm1l): Use __expl for large positive arguments.
* Fix ldbl-128ibm coshl spurious overflows (bug 16407).Joseph Myers2014-01-071-1/+1
| | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16407, spurious overflows from ldbl-128ibm coshl. The implementation assumed that a high part (reinterpreted as an integer) of the absolute value of the argument of 0x408633ce8fb9f87dLL or more meant overflow, but the actual threshold has high part 0x408633ce8fb9f87eLL (and a negative low part). The patch adjusts the threshold accordingly. sinhl probably has the same issue, but I didn't get that far in adding tests of special cases (such as just below and above overflow) before the freeze and during the freeze is not a suitable time to add them (as they'd require ulps to be regenerated again), so I'm not changing that function for now; when I add more tests of special cases, we'll discover whether sinhl indeed has this problem. Tested powerpc32. * sysdeps/ieee754/ldbl-128ibm/e_coshl.c (__ieee754_coshl): Increase overflow threshold.
* [AArch64] Fix FP_ROUNDMODE.Marcus Shawcroft2014-01-071-1/+1
| | | | [BZ #16387] Fix FP_ROUNDMODE to extract the correct bits from FPCR.
* Fix integer overflow in vfwprintf. Fixes bug 14286.Ondřej Bílka2014-01-071-14/+14
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* Fix ldbl-128 / ldbl-128ibm lgammal spurious underflow (bug 16400).Joseph Myers2014-01-061-1/+1
| | | | | | | | | | | | | | This patch fixes bug 16400, spurious underflow exceptions for ldbl-128 / ldbl-128ibm lgammal with small positive arguments, by just using -__logl (x) as the result in the problem cases (similar to the previous fix for problems with small negative arguments). Tested powerpc32, and also tested on mips64 that this does not require ulps regeneration for the ldbl-128 case. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Return -__logl (x) for small positive arguments without evaluating a polynomial.
* ia64: add __ prefix to pt_all_user_regs/ia64_fpreg [BZ #762]Mike Frysinger2014-01-061-16/+16
| | | | | | | | | | | | This addresses a long standing collision between userspace headers and kernel headers only on ia64 systems. All other types have a __ prefix in the ptrace headers except these two. Let's finally namespace these. Verified that at least strace still builds after this change, as well as after deleting all the struct hacks it has specifically for ia64. URL: https://sourceware.org/bugzilla/show_bug.cgi?id=762 Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).Joseph Myers2014-01-031-1/+1
| | | | | | | | | | | This patch fixes bug 16390, incorrect signs of zero results from ldbl-128ibm atan2l, soft-float only. The problem is a longstanding GCC bug with fabsl not being correct for signed zero for soft float, and the fix is using -fno-builtin-fabsl as a workaround, as already done for various other source files. Tested powerpc-nofpu. * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
* Fix ldbl-128ibm logl inaccuracy (bug 16386).Joseph Myers2014-01-021-1/+2
| | | | | | | | | | | | This patch fixes bug 16386, ldbl-128ibm logl inaccuracy (with consequent inaccuracy for lgammal) for arguments where the high double is subnormal, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. The problem here is logic failing to allow for subnormals when calculating the exponent of the argument. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/e_logl.c (__ieee754_logl): Adjust numbers with subnormal high part when calculating exponent.
* Fix ldbl-128ibm asinhl inaccuracy (bug 16385).Joseph Myers2014-01-021-1/+1
| | | | | | | | | | | This patch fixes bug 16385, ldbl-128ibm asinhl inaccuracy, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. The problem here was use of fabs instead of fabsl meaning large arguments were reduced to the precision of double. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/s_asinhl.c (__asinhl): Use fabsl not fabs.
* Fix ldbl-128ibm acoshl inaccuracy (bug 16384).Joseph Myers2014-01-021-1/+1
| | | | | | | | | | | | | | | This patch fixes bug 16384, ldbl-128ibm acoshl inaccuracy, which showed up while attempting to regenerate ulps for powerpc-nofpu for 2.19. There were two separate problems, use of __log1p instead of __log1pl and an insufficiently accurate constant value for log 2 (which this patch replaces by use of M_LN2l), each of which could cause substantial inaccuracy in affected cases. Tested for powerpc-nofpu. * sysdeps/ieee754/ldbl-128ibm/e_acoshl.c (ln2): Initialize with M_LN2l. (__ieee754_acoshl): Use __log1pl not __log1p.
* Fix return code from getent netgroup when the netgroup is not found (bz #16366)Siddhesh Poyarekar2014-01-021-1/+1
| | | | | | | nscd incorrectly returns a success even when the netgroup in question is not found and adds a positive result in the cache. this patch fixes this behaviour by adding a negative lookup entry to cache and returning an error when the netgroup is not found.
* Fix infinite loop in nscd when netgroup is empty (bz #16365)Siddhesh Poyarekar2014-01-021-1/+1
| | | | | | | | | Currently, when a user looks up a netgroup that does not have any members, nscd goes into an infinite loop trying to find members in the group. This is because it does not handle cases when getnetgrent returns an NSS_STATUS_NOTFOUND (which is what it does on empty group). Fixed to handle this in the same way as NSS_STATUS_RETURN, similar to what getgrent does by itself.
* Update remaining copyright datesAllan McRae2014-01-011-1/+1
| | | | Update copyright years that are not handled by scripts/update-copyright.
* Update copyright notices with scripts/update-copyrightsAllan McRae2014-01-011-1/+1
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* NEWS: mention 16379 as fixedMike Frysinger2013-12-311-1/+1
| | | | | Reported-by: Joseph S. Myers <joseph@codesourcery.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* ia64: longjmp_chk: support signal stacks [BZ #16372]Mike Frysinger2013-12-301-1/+1
| | | | | | | | The sp check has to be moved up to the start of the func since it now makes a system call and that'll clobber a lot of registers. URL: https://sourceware.org/bugzilla/show_bug.cgi?id=16372 Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix spelling in manual, as in bug 16376Ville Skytta2013-12-301-1/+1
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* Add Solvenian translations for glibc messages.Carlos O'Donell2013-12-271-0/+3
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* Fix typo in csloww()Allan McRae2013-12-271-1/+1
| | | | | An incorrect variable name was used during the refactoring done in commit 4aafb73c.
* Restore accidentally deleted bug-fix entries in NEWS.Maxim Kuvyrkov2013-12-241-1/+2
| | | | * NEWS: Restore accidentally deleted bug-fix entries.
* Fix race in free() of fastbin chunk: BZ #15073Maxim Kuvyrkov2013-12-241-11/+11
| | | | | | | | | | | | Perform sanity check only if we have_lock. Due to lockless nature of fastbins we need to be careful derefencing pointers to fastbin entries (chunksize(old) in this case) in multithreaded environments. The fix is to add have_lock to the if-condition checks. The rest of the patch only makes code more readable. * malloc/malloc.c (_int_free): Perform sanity check only if we have_lock.
* Add Changelog and news entry.Ondřej Bílka2013-12-231-13/+13
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* Fix ldbl-128 lgammal for small negative arguments (bug 16337).Joseph Myers2013-12-221-1/+1
| | | | | | | | | | | | | | | | | | | | | This patch fixes bug 16337, ldbl-128 lgammal spurious overflows for small negative arguments (the arguments in question are already in the testsuite). The implementation uses the reflection formula to compute lgamma of negative x from lgamma of -x, effectively resulting in a calculation -log(x^2) + log(-x); cancellation isn't problematic in this case (bugs for problematic cancellation in lgamma are 2542, 2543, 2558), but the x^2 calculation can underflow (in which case there is spurious logic to return an overflowing value - lgamma can only ever correctly overflow for large positive arguments, though tgamma can overflow for small arguments of either sign as well as large positive arguments). The fix is simply to calculate the result directly with logl when the argument is a small enough negative number. Tested mips64. * sysdeps/ieee754/ldbl-128/e_lgammal_r.c (__ieee754_lgammal_r): Calculate results for small negative arguments directly rather than using reflection formula with special underflow handling.
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