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8045 Commits

Author SHA1 Message Date
Siddhesh Poyarekar
d755bba40f Preserve errno across _PC_CHOWN_RESTRICTED call on XFS 
Fix BZ #15305.

On kernel versions earlier than 2.6.29, the Linux kernel exported a
sysctl called restrict_chown for xfs, which could be used to allow
chown to users other than the owner.  2.6.29 removed this support,
causing the open_not_cancel_2 to fail and thus modify errno.  The fix
is to save and restore errno so that the caller sees it as unmodified.

Additionally, since the code to check the sysctl is not useful on
newer kernels, we add an ifdef so that in future the code block gets
rmeoved completely.
 2013-04-03 10:56:45 +05:30
Joseph Myers
52ce486045 Fix cacosh inaccuracy and spurious exceptions (bug 15327). 2013-04-02 22:54:00 +00:00
Siddhesh Poyarekar
e7906a4789 Use mantissa_t in mpexp 2013-04-02 17:53:09 +05:30
Thomas Schwinge
572676160d New <math.h> macro named issignaling to check for a signaling NaN (sNaN). 
It is based on draft TS 18661 and currently enabled as a GNU extension.
 2013-04-02 13:51:02 +02:00
Adhemerval Zanella
60c414c346 PowerPC: remove branch prediction from rint implementation 
The branch prediction hints is actually hurts performance in this case.
The assembly implementation make two assumptions: 1. 'fabs (x) < 2^52'
is unlikely and 2. 'x > 0.0' is unlike (if 1. is true). Since it a
general floating point function, expected input is not bounded and then
it is better to let the hardware handle the branches.
 2013-04-01 06:36:51 -05:00
Joseph Myers
ccc8cadf75 Fix casinh inaccuracy for imaginary part < 1.0, real part small (bug 10357). 2013-03-30 13:31:53 +00:00
Siddhesh Poyarekar
0d1029de12 Remove usage of ONE macro 
I missed this instance, which caused a build failure in powerpc.
 2013-03-29 16:53:05 +05:30
Siddhesh Poyarekar
c2d94018c6 Remove ONE and MONE 2013-03-29 16:40:36 +05:30
Siddhesh Poyarekar
27ec37f185 Format s_tan.c 2013-03-29 16:38:27 +05:30
Siddhesh Poyarekar
a64d7e0efb Remove ZERO and MZERO macros 2013-03-29 16:37:26 +05:30
Siddhesh Poyarekar
d26dd3eb00 Format s_atan.c 2013-03-29 16:34:28 +05:30
Siddhesh Poyarekar
0f6a8d4b0b Format e_log.c 2013-03-29 16:34:00 +05:30
Roland McGrath
288f7d79fe Use __ehdr_start, if available, as fallback for AT_PHDR. 2013-03-28 16:15:48 -07:00
Roland McGrath
dc0a026385 Make _dl_phdr pointer to const. 2013-03-28 15:39:32 -07:00
Roland McGrath
3d3436ae68 Consolidate declarations of _dl_phdr, _dl_phnum. 2013-03-28 15:33:57 -07:00
Roland McGrath
356b348023 Never call syslog in __libc_message. 2013-03-28 10:38:37 -07:00
Alan Modra
b0f1246ab4 PowerPC: .eh_frame info in crt1.o isn't useful and triggers gold bug 14675. 
The .eh_frame info in crt1.o isn't useful and this patch prevents it from
being generated on PowerPC.  It triggers the following gold bug:

http://sourceware.org/bugzilla/show_bug.cgi?id=14675
 2013-03-28 12:16:28 -05:00
Adhemerval Zanella
fbbe2b9a1f Fix e_logl (128ibm) spurious underflow 2013-03-28 09:52:48 -03:00
Siddhesh Poyarekar
1728ab378e Format and clean up s_atan2.c 2013-03-28 10:56:06 +05:30
Joseph Myers
3a7182a14b Fix casinh inaccuracy near i, imaginary part > 1 (bug 15307). 2013-03-27 14:38:44 +00:00
Siddhesh Poyarekar
5739f705ee Use integral constants 
The compiler is smart enough to convert those into double for powerpc,
but if we put them as doubles, it adds overhead by performing those
operations in floating point mode.
 2013-03-26 20:24:04 +05:30
Siddhesh Poyarekar
e375e83d17 Removed commented code 2013-03-26 20:14:18 +05:30
Siddhesh Poyarekar
6f2e90e78f Make mantissa type of mp_no configurable 
The mantissa of mp_no is intended to take only integral values.  This
is a relatively good choice for powerpc due to its 4 fpus, but not for
other architectures, which suffer due to this choice.  This change
makes the default mantissa a long integer and allows powerpc to
override it.  Additionally, some operations have been optimized for
integer manipulation, resulting in a significant improvement in
performance.
 2013-03-26 19:28:50 +05:30
Adhemerval Zanella
fce14d4e9c PowerPC: fix libm ABI issue for llroundl 2013-03-26 10:01:57 -03:00
David S. Miller
eb66fd21bf Update sparc ULPs. 
* sysdeps/sparc/fpu/libm-test-ulps: Update.
 2013-03-22 13:29:31 -07:00
Adhemerval Zanella
e42a38dd9d BZ#13889: expl (709.75) wrongly overflows for ldbl-128ibm 
The patch increase the high value to check if expl overflows. Current
high mark value is not really correct, the algorithm accepts high values.
It also adds a correct wrapper function to check for overflow and underflow.
 2013-03-22 12:39:10 -03:00
Dmitry V. Levin
2e0fb52187 BZ#11120: fix x86_64/strcmp.S NOT_IN_libc safeguards 
Due to a typo repeated several times, this bug hasn't been fixed yet,
despite being marked as resolved in glibc 2.12.

* sysdeps/x86_64/strcmp.S: Replace all occurrences of NOT_IN_lib
with NOT_IN_libc.
 2013-03-22 03:16:00 +00:00
Adhemerval Zanella
b5784d95bb PowerPC: fix sqrtl ABI issue 
This patch fixes a sqrtl ABI issue when building for powerpc64.
 2013-03-21 14:15:45 -03:00
Thomas Schwinge
5aa4a1a1fd On 32-bit x86, disable certain tests involving sNaN values. 
Follow-up to commit 495ded2c8c.
 2013-03-21 16:05:29 +01:00
Joseph Myers
98c48fe5cc Fix Bessel function spurious overflows for ldbl-128 / ldbl-128ibm (bug 15285). 2013-03-21 13:57:21 +00:00
Joseph Myers
0a1b2ae6f6 Fix casinh inaccuracy for argument with imaginary part 1 (bug 15287). 2013-03-21 10:27:10 +00:00
Siddhesh Poyarekar
b33d4ce4a2 Replace 8388608.0 with HALFRAD in mp code 
Minor cleanup
 2013-03-21 13:07:44 +05:30
Joseph Myers
bef0b50749 Move system-specific settings out of toplevel configure.in and config.make.in. 2013-03-20 22:37:06 +00:00
Roland McGrath
a600e5cef5 Consolidate Linux and POSIX libc_fatal code. 2013-03-19 17:07:15 -07:00
Andreas Schwab
446737706c s390x: Move rtld link to /lib 2013-03-19 12:08:35 +01:00
Ondrej Bilka
37bb363f03 Faster strlen on x64. 2013-03-18 07:39:12 +01:00
David S. Miller
cd18e90aa6 Update Sparc ULPs. 
* sysdeps/sparc/fpu/libm-test-ulps: Update.
 2013-03-17 08:38:10 -07:00
Joseph Myers
d2f9799e7c Fix y1l spurious overflows for ldbl-96 (bug 15283). 2013-03-16 17:51:48 +00:00
Joseph Myers
2a185d32e8 Fix spurious underflow exceptions for Bessel functions for ldbl-128 / ldbl-128ibm (bug 14155). 2013-03-16 17:50:28 +00:00
Roland McGrath
bc16e260d0 Move _dl_non_dynamic_init, _dl_aux_init declarations. 2013-03-15 14:32:04 -07:00
Thomas Schwinge
495ded2c8c Promote a math test for sNaN handling to the top-level. 2013-03-15 19:12:10 +01:00
Thomas Schwinge
777b0332c0 Use GCC's builtins for generating NaNs. 2013-03-15 19:10:20 +01:00
Thomas Schwinge
67e971f18f Better distinguish between NaN/qNaN/sNaN. 2013-03-15 19:06:02 +01:00
Siddhesh Poyarekar
1e3803454e Revert configurable mantissa patch 
Reverts d22ca8cdfb

since it is severely broken on 32-bit.
 2013-03-15 23:18:51 +05:30
Adhemerval Zanella
83a6b66ae9 Reverting wrong commit. 
Restore sysdeps/gnu/configure wrongly modified on
ef26eece63.
 2013-03-15 14:40:37 -03:00
Adhemerval Zanella
ef26eece63 PowerPC: gettimeofday optimization by using IFUNC 2013-03-15 10:58:56 -03:00
Siddhesh Poyarekar
d22ca8cdfb Make mantissa type configurable 
This allows the default mantissa to be integral, with powerpc
overriding it to take advantage of its FPUs.
 2013-03-15 10:44:03 +05:30
Joseph Myers
06d5adfbda Regenerate sysdeps/x86_64/preconfigure. 2013-03-15 01:18:32 +00:00
Joseph Myers
41c7328e85 Fix spurious underflow exceptions for Bessel functions for double (bug 14155). 2013-03-14 17:47:30 +00:00
Siddhesh Poyarekar
e25cfa6005 Fix formatting in last change 2013-03-14 08:18:48 +05:30
Petr Baudis
58a1335e76 Fix __times() handling of EFAULT when buf is NULL 2013-03-14 01:16:53 +01:00
Roland McGrath
9967e003b3 Add sysdeps/init_array to produce empty crt[in].o and use .preinit_array for gcrt1.o 2013-03-12 12:50:13 -07:00
Ondrej Bilka
80f844c9d8 Remove Prefer_SSE_for_memop on x64 2013-03-11 15:39:08 +01:00
Andreas Schwab
fb6b0fcbf1 Remove extra pthread_atfork compat symbols 2013-03-11 09:47:01 +01:00
Adhemerval Zanella
edf66e57fc PowerPC: unify math_ldbl.h implementations 
This patch removes redudant definition from PowerPC specific
math_ldbl, using the definitions from ieee754 math_ldbl.h.
 2013-03-08 11:07:15 -03:00
Siddhesh Poyarekar
6d9145d817 Consolidate copies of mp code in powerpc 
Retain a single copy of the mp code in power4 instead of the two
identical copies in powerpc32 and powerpc64.
 2013-03-08 11:38:41 +05:30
Andreas Jaeger
4dd4e15794 Install <bits/mman-linux.h> 
* sysdeps/unix/sysv/linux/Makefile (sysdep_headers): Add
	bits/mman-linux.h.
 2013-03-07 13:06:20 +01:00
Siddhesh Poyarekar
ce544b5bda Merge powerpc slowexp.c into generic code 2013-03-07 13:25:02 +05:30
Siddhesh Poyarekar
4cc149fd8e Merge powerpc slowpow.c into generic code 2013-03-07 13:23:07 +05:30
Siddhesh Poyarekar
e6ebd4a7d5 Use an intermediate variable to sum exponents in powerpc __mul and __sqr 2013-03-07 13:18:56 +05:30
Siddhesh Poyarekar
82a9811d29 Use generic mpa.c code for everything except __mul and __sqr 2013-03-07 12:23:29 +05:30
Siddhesh Poyarekar
adbb8027be Remove PIPE_BUF Linux-specific code 
Fixes BZ #12723

The variable pipe buffer size does nothing to the value of PIPE_BUF,
since the number of bytes that are atomically written is still
PIPE_BUF on Linux.
 2013-03-07 12:15:08 +05:30
Ondrej Bilka
87bd9bc4bd Revert " * sysdeps/x86_64/strlen.S: Replace with new SSE2 based implementation" 
This reverts commit b79188d717.
 2013-03-06 22:27:18 +01:00
Ondrej Bilka
b79188d717 * sysdeps/x86_64/strlen.S: Replace with new SSE2 based implementation 
which is faster on all x86_64 architectures.
	Tested on AMD, Intel Nehalem, SNB, IVB.
 2013-03-06 21:54:01 +01:00
Andreas Jaeger
664a9ce4ca Use <bits/mman-linux.h> for MIPS 
* sysdeps/unix/sysv/linux/bits/mman-linux.h (MAP_ANONYMOUS):
	Allow definition via __MAP_ANONYMOUS.

	* sysdeps/unix/sysv/linux/mips/bits/mman.h: Remove all defines
	provided by bits/mman-linux.h and include <bits/mman-linux.h>.
	(__MAP_ANONYMOUS): Define.
 2013-03-06 17:36:37 +01:00
Andreas Jaeger
8e39047d31 Remove MAP_GROWSUP on s390 
* sysdeps/unix/sysv/linux/s390/bits/mman.h (MAP_GROWSUP):
	Remove, it's not part of Linux headers.
 2013-03-06 16:39:56 +01:00
Andreas Jaeger
67525cb832 Sync with Linux 3.8 2013-03-06 16:35:19 +01:00
Joseph Myers
2d67d91ac0 Remove powerpc64 bounded-pointers code. 2013-03-06 00:10:21 +00:00
Andreas Jaeger
890b58d3bd Define MCL_CURRENT, MCL_FUTURE in bits/mman-linux.h 
* sysdeps/unix/sysv/linux/s390/bits/mman.h: Include
	<bits/mman-linux.h>.
	(MCL_CURRENT, MCL_FUTURE): Do not define here, the generic value
	is fine.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h: Move include of
	<bits/mman-linux.h> to end of file.
	(MCL_CURRENT, MCL_FUTURE): Do not define here, the generic value
	is fine.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h: Move include of
	<bits/mman-linux.h> to end of file.
	(MCL_CURRENT, MCL_FUTURE): Do not define here, the generic value
	is fine.
	* sysdeps/unix/sysv/linux/sparc/bits/mman.h: Move include of
	<bits/mman-linux.h> to end of file.

	* sysdeps/unix/sysv/linux/bits/mman-linux.h [!MCL_CURRENT]
	(MCL_CURRENT, MCL_FUTURE): Define here.
 2013-03-05 19:40:13 +01:00
Andreas Krebbel
5f67c04f5e S/390: Use attribute_hidden in ifunc-resolve.c 2013-03-05 13:19:03 +01:00
Andreas Krebbel
c3e94a9533 S/390: Fix rt_sigprocmask syscall invocation in get/set/swapcontext. 2013-03-05 08:15:33 +01:00
Joseph Myers
cfb6382a4f Remove powerpc32 strncmp comments about bounded pointers. 2013-03-04 23:53:05 +00:00
Andreas Jaeger
539d8e0188 Create <bits/mman-linux.h> 
* sysdeps/unix/sysv/linux/bits/mman-linux.h: New file, with
	Linux common definitions.

	* sysdeps/unix/sysv/linux/sh/bits/mman.h: Remove all defines
	provided by bits/mman-linux.h and include <bits/mman-linux.h>.
	* sysdeps/unix/sysv/linux/x86/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sh/bits/mman.h: Likewise.
	* sysdeps/unix/sysv/linux/sparc/bits/mman.h: Likewise.
 2013-03-04 20:26:59 +01:00
Adhemerval Zanella
e0b780ad5b BZ #15055: Use __ieee754_sqrl in acoshl for lbdl-128ibm 2013-03-04 11:37:51 -03:00
Joseph Myers
6850863319 Use same installed powerpc headers for hard and soft float. 2013-03-01 22:53:27 +00:00
Roland McGrath
7775448e57 Fix NEED_DL_SYSINFO_DSO conditionals. 2013-03-01 14:44:44 -08:00
Joseph Myers
b551088322 Remove powerpc32 bounded-pointers code. 2013-02-28 21:23:47 +00:00
Siddhesh Poyarekar
8d19fe64ee Sync up ppc add_magnitudes and sub_magnitudes with default code 2013-02-28 11:13:05 +05:30
Siddhesh Poyarekar
09c14ed23e Format mpsqrt.c 2013-02-27 11:28:20 +05:30
Siddhesh Poyarekar
a688864eed Format mpatan2.c 2013-02-27 11:27:41 +05:30
Siddhesh Poyarekar
6295157a77 Format mpatan.c 2013-02-27 11:26:22 +05:30
Siddhesh Poyarekar
b8de22026d Format mptan.c 2013-02-27 11:25:39 +05:30
Siddhesh Poyarekar
11d6e2f237 Format mplog.c 2013-02-27 11:24:45 +05:30
Siddhesh Poyarekar
45f058844c Another tweak to the multiplication algorithm 
Reduce the formula to calculate mantissa so that we reduce the net
number of multiplications performed.
 2013-02-26 21:28:16 +05:30
Siddhesh Poyarekar
2236d3595a Don't duplicate mpone and mptwo 2013-02-26 15:15:27 +05:30
Siddhesh Poyarekar
2a983a2e0a Remove commented declarations 2013-02-25 18:11:14 +05:30
Siddhesh Poyarekar
e69804d14e Use long wherever possible in mpa.c 
Using long throughout like powerpc does is beneficial since it reduces
the need to switch to 32-bit instructions.  It gives a very minor
performance improvement.
 2013-02-25 16:43:03 +05:30
Siddhesh Poyarekar
2f22a1e8dd Format slowexp.c 2013-02-25 16:13:35 +05:30
Siddhesh Poyarekar
8930ddc705 Reformat slowpow.c 2013-02-25 16:08:38 +05:30
Siddhesh Poyarekar
dc60cb110b Remove commented code 2013-02-25 14:51:57 +05:30
Siddhesh Poyarekar
60f5a8b534 Sync up powerpc __mp_dbl with default code 2013-02-25 12:01:45 +05:30
Joseph Myers
2366713d87 Remove remaining bounded-pointers support from i386 .S files. 2013-02-21 22:21:52 +00:00
Siddhesh Poyarekar
8094523147 Mark __inv as static in powerpc 2013-02-21 15:05:28 +05:30
Siddhesh Poyarekar
bab8a695ee Fix whitespace differences between generic and powerpc mpa.c 2013-02-21 14:31:42 +05:30
Andreas Krebbel
e21d7aa71c S/390: Fix _dl_runtime_profile for 32 bit. 2013-02-21 09:47:55 +01:00
Siddhesh Poyarekar
4c7a4263af Mark ZERO inputs to __mul as unlikely on powerpc 
Syncs up with generic code.
 2013-02-21 12:17:29 +05:30
Thomas Schwinge
50022a93fc Respect the user's namespace in installed header files. 
Fixup for commit c7b275d6b3.
 2013-02-20 18:51:56 +01:00
Thomas Schwinge
c7b275d6b3 bits/nan.h: Change __attribute_used__ to __attribute__ ((unused)). 2013-02-20 16:49:58 +01:00
Siddhesh Poyarekar
20cd7fb3ae Copy comment about inner loop from powerpc mpa.c to the default one 2013-02-20 18:56:20 +05:30
Joseph Myers
92945b5261 Remove some bounded-pointers support from i386 .S files. 2013-02-19 21:58:08 +00:00