Commit Graph

25821 Commits

Author SHA1 Message Date
Marcus Shawcroft
7b2991daea [AArch64] Fix up ChangeLog formatting for last commit. 2013-05-23 16:08:49 +01:00
Marcus Shawcroft
1fd885a5b3 [AArch64] Use generic "mcount" routine for profiling. 2013-05-23 14:47:15 +01:00
Carlos O'Donell
13e23af76e Update comments in ldconfig.c and dl-hwcaps.c.
In dl-hwcaps.c the comment read that rounding was done
to ElfW(Addr), but it's actually rounded to ElfW(Word).

In ldconfig.c we make each comment a sentence and
mention that the "tls" pseudo-hwcap is just for legacy
installations where TLS was optional.

---

2013-05-22  Carlos O'Donell  <carlos@redhat.com>

	* elf/ldconfig.c (is_hwcap_platform): Make comments full setences.
	(main): Mention "tls" pseudo-hwcap is legacy.
	* elf/dl-hwcaps.c (_dl_important_hwcaps): Correct rounding comment.
2013-05-22 23:22:36 -04:00
Joseph Myers
351fe55087 Don't include function names in test data in generated libm-test.c. 2013-05-22 21:01:44 +00:00
Edjunior Barbosa Machado
85118d4de3 Update bits/siginfo.h with Linux hwpoison SIGBUS changes
Adds new SIGBUS error codes for hardware poison signals, syncing with
the current kernel headers (v3.9). It also adds si_trapno field for
alpha.
2013-05-22 14:19:49 -05:00
Carlos O'Donell
7a44c18fb4 Fix _nl_find_msg malloc failure case, and callers.
This patch fixes two issues, and perhaps should be two distinct commits,
but I present it here as one for the sake of completeness.

Commit 006dd86111 fails to check malloc's
return in intl/dcigettext.c (_nl_find_msg):
~~~
      freemem_size = INITIAL_BLOCK_SIZE;
      newmem = (transmem_block_t *) malloc (freemem_size);
...
      newmem->next = transmem_list;
      transmem_list = newmem;
~~~
If malloc fails then newmem is NULL then newmem->next results in a
fault.

The fix is easy enough, check for newmem != NULL, and fall through to
the error condition below which returns (char *) -1 e.g. resource error.

The problem is that returning (char *) -1  will break all sorts of other
code, so while what we did is correct, the real failure case fix is
slightly broader.

There are 4 other places where _nl_find_msg is called, one is OK, the
other three are fixed to handle -1 error return value.

No regressions on x86-64 or x86.

However, no regressions isn't really a useful metric for this code.

The change was tested as documented here:
http://sourceware.org/glibc/wiki/Testing/WhiteBox
using SystemTap for fault injection to simulate malloc failure.

---

2013-05-03  Carlos O'Donell  <carlos at redhat.com>

	[BZ #15441]
	* intl/dcigettext.c (DCIGETTEXT): Skip translating if _nl_find_msg
	returns -1.
	(_nl_find_msg): Return -1 if recursive call returned -1. If newmem is
	null return -1.
	* intl/loadmsgcat.c (_nl_load_domain): If _nl_find_msg returns -1 abort
	loading the domain.
2013-05-22 14:50:26 -04:00
Joseph Myers
b50a71810b Don't include expected results in libm-test test names. 2013-05-22 11:49:36 +00:00
Siddhesh Poyarekar
3ce9e01097 Sort benchmark functions 2013-05-22 11:07:39 +05:30
Siddhesh Poyarekar
051063c88b Add benchmark inputs for math functions
Add benchmark inputs for inverse and hyperbolic trigonometric
functions and log.
2013-05-22 11:07:33 +05:30
Joseph Myers
04453c5625 Fix MIPS n32 cancellation in static libc (bug 15506). 2013-05-21 20:27:45 +00:00
Dmitry V. Levin
47c22455d4 Test getaddrinfo return value
This helps testing for regression of BZ#15339.  Creation of network
isolated environments is a privileged operation and therefore is not
included to the test.
2013-05-21 17:21:05 +00:00
Siddhesh Poyarekar
3d04f5db20 Set EAI_SYSTEM only when h_errno is NETDB_INTERNAL
Fixes BZ #15339.

NSS_STATUS_UNAVAIL may mean that a necessary input resource is not
available.  This could occur in a number of cases including when the
network is down, system runs out of file descriptors, etc.  The
correct differentiator in such a case is the h_errno, which gives the
nature of failure.  In case of failures other than a simple 'not
found', we set h_errno as NETDB_INTERNAL and let errno be the
identifier for the exact error.
2013-05-21 21:54:41 +05:30
Andreas Schwab
d5dd6189d5 Fix parsing of numeric hosts in gethostbyname_r 2013-05-21 12:26:33 +02:00
Siddhesh Poyarekar
fef94eab0b Add a README for benchtests
Move instructions from the Makefile here and expand on them.
2013-05-21 14:59:50 +05:30
Andreas Schwab
e39adf43c7 AArch64: Don't clobber argument for tail call to __sigjmp_save in sigsetjmp 2013-05-21 10:52:46 +02:00
Marcus Shawcroft
6c14f68aab [AArch64] Update libm-test-ulps. 2013-05-21 09:01:19 +01:00
Adhemerval Zanella
68191c1d59 PowerPC: update missing CL/NEWS bug reference
Update ChangLog bugzilla number and NEWS for commit
13d3b41a36 (PowerPC: fix hypot/hypotf
check for -INF).
2013-05-20 09:35:01 -05:00
Ondrej Bilka
b2b671b677 Faster memset on x64
This implementation speed up memset in several ways. First is avoiding
expensive computed jump. Second is using fact that arguments of memset
are most of time aligned to 8 bytes.

Benchmark results on:
kam.mff.cuni.cz/~ondra/benchmark_string/memset_profile_result27_04_13.tar.bz2
2013-05-20 08:32:45 +02:00
Ondrej Bilka
2d48b41c8f Faster memcpy on x64.
We add new memcpy version that uses unaligned loads which are fast
on modern processors. This allows second improvement which is avoiding
computed jump which is relatively expensive operation.

Tests available here:
http://kam.mff.cuni.cz/~ondra/memcpy_profile_result27_04_13.tar.bz2
2013-05-20 08:24:41 +02:00
Joseph Myers
3e69426875 Fix nearbyint scheduling of arithmetic past fesetenv (bug 15490). 2013-05-19 18:40:25 +00:00
Joseph Myers
db62a90753 Handle sincos with generic libm-test logic. 2013-05-19 14:45:41 +00:00
Joseph Myers
f16cc3eb81 Simplify gen-libm-test.pl handling of tests with extra outputs. 2013-05-19 14:40:40 +00:00
Joseph Myers
2ee094ff75 Don't disable CMPLXL macro for __NO_LONG_DOUBLE_MATH (bug 15488). 2013-05-18 12:12:38 +00:00
Joseph Myers
3779b5b64a Make libm-test look up ulps by name at runtime. 2013-05-18 12:10:59 +00:00
Joseph Myers
bb38759d6d Fix remainder exceptions and directed-rounding results (bugs 15480, 15485). 2013-05-17 19:04:08 +00:00
Joseph Myers
a00bdcf0e0 Simplify libm-test extra-output initialization. 2013-05-17 19:02:19 +00:00
Joseph Myers
de407f79a2 Don't handle ulps for integer tests in libm-test.inc. 2013-05-17 19:01:27 +00:00
Joseph Myers
8269107fe6 Test more cases of "inexact" exceptions in libm-test.inc. 2013-05-17 14:45:50 +00:00
Siddhesh Poyarekar
48a18de1e1 Prevent optimizing out of benchmark function call
Resolves: #15424

The compiler would optimize the benchmark function call out of the
loop and call it only once, resulting in blazingly fast times for some
benchmarks (notably atan, sin and cos).  Mark the inputs as volatile
so that the code is forced to read again from the input for each
iteration.
2013-05-17 19:10:33 +05:30
Adhemerval Zanella
13d3b41a36 PowerPC: fix hypot/hypotf check for -INF 2013-05-17 08:15:59 -05:00
Maciej W. Rozycki
2848b10585 MIPS: soft-fp NaN representation corrections
[BZ #15442] This adds support for the inverse interpretation of the
quiet bit of IEEE 754 floating-point NaN data that some processors
use.  This includes in particular MIPS architecture processors; the
payload used for the canonical qNaN encoding is updated accordingly
so as not to interfere with the quiet bit.
2013-05-16 23:33:55 +01:00
Joseph Myers
c58b274f01 Test for errno setting in more pole error cases. 2013-05-16 21:57:25 +00:00
Joseph Myers
0ab349044b Remove ENOSYS tests in libm-test.inc. 2013-05-16 19:09:54 +00:00
Joseph Myers
323e5cb792 Remove libm-test support for TEST_* inside functions. 2013-05-16 19:09:03 +00:00
Ryan S. Arnold
e054f49430 Add #include <stdint.h> for uint[32|64]_t usage (except installed headers). 2013-05-16 11:32:54 -05:00
Joseph Myers
8c75f67421 Convert TEST_extra tests from code to data. 2013-05-16 15:53:40 +00:00
Richard Henderson
e6e49e59c1 De-stringify constants in math/atest-exp2.c. 2013-05-16 06:34:01 -07:00
Joseph Myers
105a07dfc0 Support testing "inexact" exceptions in libm-test.inc. 2013-05-16 13:19:38 +00:00
Joseph Myers
e9eee333b9 Test for errno setting in more overflow error cases. 2013-05-16 13:18:48 +00:00
Joseph Myers
1c38ff73fd Convert TEST_cc_c tests from code to data. 2013-05-16 13:17:55 +00:00
Joseph Myers
15c7c18dc6 Convert TEST_f_L tests from code to data. 2013-05-16 13:16:56 +00:00
Peter Collingbourne
f137ff1383 Remove const attribute on get_log2
This function is not const, as it can modify log2_m and log2_m_inited.
2013-05-15 14:27:53 -07:00
Carlos O'Donell
c5d9b39ce6 hppa: Cleanup libm-test-ulps.
Joseph Myers noted that there were several old and really very
incorrect values in the hppa libm-test-ulps. This patch removes
all of the ulps values for ceil, floor, rint, round, trun,
llrint, and llround, all of which were previously incorreclty
added (including some negative values which are really wrong).

---
ports/

2013-05-15  Carlos O'Donell  <carlos@redhat.com>

	* sysdeps/hppa/fpu/libm-test-ulps: Remove old values for ceil, floor,
	rint, round, trunc, llrint, and llround.
2013-05-15 17:19:20 -04:00
Joseph Myers
3608cb241e Convert TEST_f_l tests from code to data. 2013-05-15 19:48:17 +00:00
Peter Collingbourne
1deff3dca1 Use movq for 64-bit operations
The EXTRACT_WORDS64 and INSERT_WORDS64 macros use movd for a 64-bit
operation.  Somehow gcc manages to turn this into movq, but LLVM won't.

2013-05-15  Peter Collingbourne  <pcc@google.com>

	* sysdeps/x86_64/fpu/math_private.h (MOVQ): New macro.
	(EXTRACT_WORDS64) Use where appropriate.
	(INSERT_WORDS64) Likewise.
2013-05-15 20:33:45 +02:00
Peter Collingbourne
791f3ba0db Use x constraints for operands to vfmaddss and vfmaddsd
While these instructions accept memory operands, only one operand
may be a memory operand.  Giving two operands xm constraints gives
the compiler the option of using memory for both operands, which
would result in invalid assembly code.  Using x for all operands is
more appropriate, as most x86_64 calling conventions will pass the
arguments in registers anyway.

2013-05-15  Peter Collingbourne  <pcc@google.com>

	* sysdeps/x86_64/fpu/multiarch/s_fma.c (__fma_fma4): Replace xm
	constraints with x constraints.
	* sysdeps/x86_64/fpu/multiarch/s_fmaf.c (__fmaf_fma4): Likewise.
2013-05-15 20:31:53 +02:00
Peter Collingbourne
39b1f6172a Move _obstack_compat out of common
it is impossible to create an alias of a common symbol (as
compat_symbol does), because common symbols do not have a section or
an offset until linked.  GNU as tolerates aliases of common symbols by
simply creating another common symbol, but other assemblers (notably
LLVM's integrated assembler) are less tolerant.

2013-05-15  Peter Collingbourne  <pcc@google.com>

	* malloc/obstack.c (_obstack_compat): Add initializer.
-
2013-05-15 20:29:20 +02:00
Andreas Jaeger
ecbf434213 Reserve new TLS field for x86 and x86_64
[BZ #10686]
	* sysdeps/x86_64/tls.h (struct tcbhead_t): Add __private_ss
	field.
	* sysdeps/i386/tls.h (struct tcbhead_t): Likewise.
2013-05-15 20:20:54 +02:00
Edjunior Machado
12fba011bd Update s390/bits/siginfo.h
2013-05-15  Edjunior Machado  <emachado@linux.vnet.ibm.com>

	* sysdeps/unix/sysv/linux/s390/bits/siginfo.h (siginfo_t):
	Remove si_trapno and add si_addr_lsb to _sifields.sigfault.
	(si_trapno): Remove macro.
	(si_addr_lsb): Define new macro.
	(BUS_MCEERR_AR, BUS_MCEERR_AO): Define new values.
2013-05-15 20:15:19 +02:00
Joseph Myers
b861c6c4c9 Consistently use TEST_f_L in tests of llrint and llround. 2013-05-15 16:58:41 +00:00