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* Make __ffs hiddenAndreas Schwab2013-09-205-0/+5
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* Consolidate common code into macrosSiddhesh Poyarekar2013-09-191-74/+62
| | | | | Consolidated common Taylor series polynomials into macros in s_sin.c to make it a bit cleaner.
* Consolidate sin/cos table lookup codeSiddhesh Poyarekar2013-09-191-114/+35
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* Consolidate sin/cos computation for large inputsSiddhesh Poyarekar2013-09-191-47/+36
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* Remove redundant goto linesSiddhesh Poyarekar2013-09-191-40/+3
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* MIPS: IEEE 754-2008 NaN encoding supportMaciej W. Rozycki2013-09-181-18/+21
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It has been a long practice for software using IEEE 754 floating-point arithmetic run on MIPS processors to use an encoding of Not-a-Number (NaN) data different to one used by software run on other processors. And as of IEEE 754-2008 revision [1] this encoding does not follow one recommended in the standard, as specified in section 6.2.1, where it is stated that quiet NaNs should have the first bit (d1) of their significand set to 1 while signalling NaNs should have that bit set to 0, but MIPS software interprets the two bits in the opposite manner. As from revision 3.50 [2][3] the MIPS Architecture provides for processors that support the IEEE 754-2008 preferred NaN encoding format. As the two formats (further referred to as "legacy NaN" and "2008 NaN") are incompatible to each other, tools have to provide support for the two formats to help people avoid using incompatible binary modules. The change is comprised of two functional groups of features, both of which are required for correct support. 1. Dynamic linker support. To enforce the NaN encoding requirement in dynamic linking a new ELF file header flag has been defined. This flag is set for 2008-NaN shared modules and executables and clear for legacy-NaN ones. The dynamic linker silently ignores any incompatible modules it encounters in dependency processing. To avoid unnecessary processing of incompatible modules in the presence of a shared module cache, a set of new cache flags has been defined to mark 2008-NaN modules for the three ABIs supported. Changes to sysdeps/unix/sysv/linux/mips/readelflib.c have been made following an earlier code quality suggestion made here: http://sourceware.org/ml/libc-ports/2009-03/msg00036.html and are therefore a little bit more extensive than the minimum required. Finally a new name has been defined for the dynamic linker so that 2008-NaN and legacy-NaN binaries can coexist on a single system that supports dual-mode operation and that a legacy dynamic linker that does not support verifying the 2008-NaN ELF file header flag is not chosen to interpret a 2008-NaN binary by accident. 2. Floating environment support. IEEE 754-2008 features are controlled in the Floating-Point Control and Status (FCSR) register and updates are needed to floating environment support so that the 2008-NaN flag is set correctly and the kernel default, inferred from the 2008-NaN ELF file header flag at the time an executable is loaded, respected. As the NaN encoding format is a property of GCC code generation that is both a user-selected GCC configuration default and can be overridden with GCC options, code that needs to know what NaN encoding standard it has been configured for checks for the __mips_nan2008 macro that is defined internally by GCC whenever the 2008-NaN mode has been selected. This mode is determined at the glibc configuration time and therefore a few consistency checks have been added to catch cases where compilation flags have been overridden by the user. The 2008 NaN set of features relies on kernel support as the in-kernel floating-point emulator needs to be aware of the NaN encoding used even on hard-float processors and configure the FPU context according to the value of the 2008 NaN ELF file header flag of the executable being started. As at this time work on kernel support is still in progress and the relevant changes have not made their way yet to linux.org master repository. Therefore the minimum version supported has been artificially set to 10.0.0 so that 2008-NaN code is not accidentally run on a Linux kernel that does not suppport it. It is anticipated that the version is adjusted later on to the actual initial linux.org kernel version to support this feature. Legacy NaN encoding support is unaffected, older kernel versions remain supported. [1] "IEEE Standard for Floating-Point Arithmetic", IEEE Computer Society, IEEE Std 754-2008, 29 August 2008 [2] "MIPS Architecture For Programmers, Volume I-A: Introduction to the MIPS32 Architecture", MIPS Technologies, Inc., Document Number: MD00082, Revision 3.50, September 20, 2012 [3] "MIPS Architecture For Programmers, Volume I-A: Introduction to the MIPS64 Architecture", MIPS Technologies, Inc., Document Number: MD00083, Revision 3.50, September 20, 2012
* e500 port: fpu_control.h.Joseph Myers2013-09-181-1/+38
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* e500 port: setjmp/longjmp.Joseph Myers2013-09-182-36/+47
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* Don't force -msoft-float for powerpc --without-fp.Joseph Myers2013-09-181-5/+0
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* Format sincos32.cSiddhesh Poyarekar2013-09-181-236/+254
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* Fix powerpc fpu_control.h namespace and parenthesis issues (bug 15966).Joseph Myers2013-09-171-12/+12
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* Faster strchr implementation.Ondřej Bílka2013-09-114-200/+160
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* Update powerpc-fpu ULPs.Adhemerval Zanella2013-09-111-2/+63
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* Add O_TMPFILE to <fcntl.h>Andreas Schwab2013-09-112-0/+5
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* Remove DO_NOT_USE_THIS conditionals.Ondřej Bílka2013-09-105-97/+0
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* Coordinate IPv6 definitions for Linux and glibcCarlos O'Donell2013-09-061-0/+12
| | | | | | | | | | This change synchronizes the glibc headers with the Linux kernel headers and arranges to coordinate the definition of structures already defined the Linux kernel UAPI headers. It is now safe to include glibc's netinet/in.h or Linux's linux/in6.h in any order in a userspace application and you will get the same ABI. The ABI is guaranteed by UAPI and glibc.
* PowerPC: fix POWER7 memrchr for some large inputsAdhemerval Zanella2013-09-052-4/+4
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* tst-fanotify: skip when we get back EPERMMike Frysinger2013-09-051-5/+8
| | | | | | | | Since fanotify_init requires CAP_SYS_ADMIN in order to work (which usually means running as root), we need to handle that error case too. Reported-by: Andreas Jaeger <aj@suse.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Remove --disable-versioning.Joseph Myers2013-09-046-13/+5
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* Fix lgammaf spurious underflow (bug 15427).Joseph Myers2013-09-033-2/+110
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* Add unaligned strcmp.Ondřej Bílka2013-09-034-2/+222
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* tst-fanotify: new simple testMike Frysinger2013-09-022-1/+57
| | | | | | Basic test for the fanotify functions. Signed-off-by: Mike Frysinger <vapier@gentoo.org>
* Fix spurious jnf underflows (bug 14155).Joseph Myers2013-09-023-6/+37
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* Fix typo.Ondřej Bílka2013-09-021-1/+1
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* Fix then/than typos.Ondřej Bílka2013-08-305-19/+19
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* Fix typos.Ondřej Bílka2013-08-3012-12/+12
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* Fix rawmemchr regression on bulldozer.Ondřej Bílka2013-08-302-109/+0
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* Remove aix specific files.Ondřej Bílka2013-08-299-869/+0
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* Hurd: Add ESUCCESS error_t value.Thomas Schwinge2013-08-292-1/+17
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* Hurd: Use __executable_start symbol instead of _start.Samuel Thibault2013-08-291-2/+2
| | | | | _start points to the first instruction, not to the ELF header. __executable_start does point on the ELF header.
* Support ELFOSABI_GNU on all GNU systems.Thomas Schwinge2013-08-292-23/+48
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* Use ELFOSABI_GNU instead of ELFOSABI_LINUX.Thomas Schwinge2013-08-291-4/+4
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* [BZ #15522] strtod ("nan(N)") returning a sNaN in some casesThomas Schwinge2013-08-295-20/+41
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* Fix typos.Ondřej Bílka2013-08-297-7/+7
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* Use __glibc_unlikely instead of __builtin_expect (..., 0)Siddhesh Poyarekar2013-08-281-1/+1
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* True stub __ifreq.Roland McGrath2013-08-271-0/+79
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* Clean up __libc_sa_len helper.Roland McGrath2013-08-273-66/+13
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* Replace generic bits/socket.h with 4.4 file.Roland McGrath2013-08-271-358/+0
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* Flesh out 4.4 bits/socket.h with SOCK_CLOEXEC, SOCK_NONBLOCK.Roland McGrath2013-08-271-1/+17
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* Fix handling LC_CTYPE nonascii-case fallback in i686 SSE4.2 and SSSE3 ↵Andreas Schwab2013-08-272-0/+24
| | | | strcasecmp/strncasecmp
* Fix typos.Ondřej Bílka2013-08-2121-26/+26
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* i686: Skip SSE4_2 version for strcmp, strncmp, strncase, strcasecmpLiubov Dmitrieva2013-08-213-0/+12
| | | | if bit_Slow_SSE4_2 is set.
* PowerPC: fix backtrace to handle signal trampolinesAdhemerval Zanella2013-08-204-2/+123
| | | | | | This patch fixes backtrace for PPC32 and PPC64 to correctly handle signal trampolines. The 'debug/tst-backtrace6.c' also check for SA_SIGINFO handling, where is triggers another vDSO symbols for PPC32.
* Fix cproj handling of (finite, NaN) arguments (bug 15531).Joseph Myers2013-08-201-3/+1
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* Include <string.h> in sysdeps/unix/sysv/linux/mmap64.c.Joseph Myers2013-08-201-0/+1
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* Use __getpagesize and __ffs in MMAP2_PAGE_SHIFT == -1 case of mmap64.Joseph Myers2013-08-201-3/+2
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* * sysdeps/unix/sysv/linux/s390/sys/procfs.h (struct elf_prstatus):Andreas Krebbel2013-08-201-1/+2
| | | | Align 32 bit compat elf_greg to 8 bytes.
* CVE-2013-4237, BZ #14699: Buffer overflow in readdir_rFlorian Weimer2013-08-166-14/+34
| | | | | | | | | | | | | | | | | | | | * 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.
* Fix cbrtl for ldbl-96Andreas Schwab2013-08-131-1/+1
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* PowerPC: use _dl_static_init to set GLRO(gl_pagesize)Adhemerval Zanella2013-07-234-0/+129
| | | | | | This patch fixes dlfcn/tststatic5 for PowerPC where pagesize variable was not properly initialized in certain cases. This patch is based on other architecture code.
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