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We only need to set/restore rounding mode to ensure correct
computation for non-default rounding modes.
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In 128-bit IBM long double the precision of the type
decreases as you approach subnormal numbers, equaling
that of a double for subnormal numbers. Therefore
adjust the computation in ulp to use 2^(MIN_EXP - MANT_DIG)
which is correct for FP_SUBNORMAL for all types.
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Upstream TP should modify PO files and POT file
should be empty template.
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[BZ #15553] Increased the current limits large enough to load large
key and data values, but small enough to not pose a DoS threat.
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* manual/errno.texi (ESTALE): Update to account for more than
just NFS file systems.
* sysdeps/gnu/errlist.c: Regenerated.
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Resolves: #15465
The program name may be unavailable if the user application tampers
with argc and argv[]. Some parts of the dynamic linker caters for
this while others don't, so this patch consolidates the check and
fallback into a single macro and updates all users.
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Added descriptive titles to the Belarusian,
English (American), and Chinese (simplified)
po/pot files.
---
2013-05-28 Carlos O'Donell <carlos@redhat.com>
* po/be.po: Add descriptive title.
* po/zh_CN.po: Likewise.
* po/header.pot: Likewise.
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When mkstemp fails, the error message the user gets back is:
cannot create temporary file: No such file or directory
That isn't terribly useful in figuring out why, so include the full
filename we tried to create in the error output.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
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It is the magnitude of the return value which lies
in [0.5, 1), not the return value itself.
---
2013-05-28 Ben North <ben@redfrontdoor.org>
* manual/arith.texi (frexp): It is the magnitude of the return
value which lies in [0.5, 1), not the return value itself.
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Fixup for commit 6ecec3b616aeaf121c68c1053cd17fdcf0cdb5a2.
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* sysdeps/mach/hurd/dl-sysdep.c (_dl_sysdep_start:go): Don't
declare _dl_skip_args.
Continuation of commit 8347c74cc5c972aa9e57747177b1f5f4b1cbcac8.
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* sysdeps/mach/hurd/i386/init-first.c (_dl_non_dynamic_init):
Don't declare.
Continuation of commit bc16e260d0e74b36e48d30edc6ea4f1152700c09.
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Fixup for commit d116b7c414c8239b677e341ac517745db689ac2d.
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This patch add inline functions to change the Program Priority Register
from ISA 2.05.
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The current value used for ulp near zero is wrong,
and this commit fixes it such that ulp(0) is the smallest
subnormal value nearest to zero, which makes the most
sense for testing values near zero. Note that this is not
what Java does; they use the nearest normal value, which
is less accurate than what we want for glibc. Note that
there is no correct implementation of ulp since there
is no strict mathmatical definition that is accepted by
all groups using IEEE 754.
Previously with the large ulp values near zero there
were tests that previously passed, but were in fact
billions of ulp away from the precise answer. With this
commit we now need to disable one of the cpow tests which
is revealed to be inaccurate (bug 14473).
---
2013-05-24 Carlos O'Donell <carlos@redhat.com>
* math/libm-test.inc (MAX_EXP): Define.
(ULPDIFF): Define.
(ulp): New function.
(check_float_internal): Use ULPDIFF.
(cpow_test): Disable failing test.
(check_ulp): Test ulp() implemetnation.
(main): Call check_ulp before starting tests.
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Fixes 15381.
Using wide character function is on byte oriented memstream is undefined
behaviour. This behaviour was masked by not initializing wide struct
info. We now initialize it to cause a predictable crash.
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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.
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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.
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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 006dd86111c44572dbd3b26e9c63dd0f834d7762 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.
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Add benchmark inputs for inverse and hyperbolic trigonometric
functions and log.
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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.
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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.
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Move instructions from the Makefile here and expand on them.
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Update ChangLog bugzilla number and NEWS for commit
13d3b41a36c4f28d171a144f8a9baad3a8835981 (PowerPC: fix hypot/hypotf
check for -INF).
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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
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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
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