Commit Graph

99 Commits

Author SHA1 Message Date
Chih-Hung Hsieh
356a6249d8 Disable Clang, due to x86 LDBL_MANT_DIG errors.
Clang -m32 has incorrect sizeof(long double) = 12.
With -m64, LDBL_MANT_DIG is incorrect 64.

BUG: 17163651
Change-Id: I4b157aa1a8572c3a10aece6070e119a292ab8e83
2014-09-04 12:35:19 -07:00
Elliott Hughes
e0c56efddf Use __GNUC_PREREQ rather than __GNUC_PREREQ__ to match glibc.
Bug: 16874785
Change-Id: I8512f8be3fd149d8720c5c3b4657bedd5ce2b1d1
2014-08-29 15:54:11 -07:00
Elliott Hughes
f4c948a9e9 Move the meat of <features.h> into <sys/cdefs.h>.
This way it's a lot harder for us to screw up (since we should always
be including <sys/cdefs.h> anyway).

Bug: 14659579
Change-Id: I23070fff3296b0d1c683bb5e3a6e214146327d53
2014-08-19 11:18:20 -07:00
Elliott Hughes
5f5cc45cf0 Fix <features.h> (_BSD_SOURCE and _GNU_SOURCE).
<features.h> is supposed to take user-settable stuff like _GNU_SOURCE
and _BSD_SOURCE and turn them into __USE_GNU and __USE_BSD for use in
the C library headers. Instead, bionic used to unconditionally define
_BSD_SOURCE and _GNU_SOURCE, and then test _GNU_SOURCE in the header
files (which makes no sense whatsoever).

Bug: 14659579
Change-Id: Ice4cf21a364ea2e559071dc8329e995277d5b987
2014-08-18 16:04:03 -07:00
Elliott Hughes
1e83245bae Revert "Switch libm to building with clang."
This reverts commit aadc4b2ff0.

The patch broke x86.

Change-Id: I0cda903732a685838bbd1877f94e1593a2a32acc
2014-07-11 01:24:15 +00:00
Elliott Hughes
aadc4b2ff0 Switch libm to building with clang.
Bug: 16211965
Change-Id: I81ec9706a4f2b5e8a840508a0f711cd25a5826ca
2014-07-10 16:58:07 -07:00
Dan Albert
71f9b34fbe Revert "Revert "Prevent symbols from libgcc from being reexported.""
This reverts commit 4e4e1a5d78.

Change-Id: I8e78c3a59598e052e02965dd37b3fba8f567eed9
2014-06-24 04:31:08 +00:00
Dan Albert
4e4e1a5d78 Revert "Prevent symbols from libgcc from being reexported."
This reverts commit 65e80cf622.

Change-Id: I5f94b123f73db8d0b03cd71a5cffa0662776a017
2014-06-23 20:12:05 +00:00
Dan Albert
65e80cf622 Prevent symbols from libgcc from being reexported.
Since this was not done earlier, there are binary compatibility concerns
that prevent us from being able to apply this to LP32.

Bug: 11156955
Change-Id: Ie717c3ae4b81c749548a45a993c834e109700b27
2014-06-21 00:09:31 -07:00
Elliott Hughes
b6ca747402 Merge "Add a flag control that PRIVATE libm can be chosen" 2014-06-17 20:56:23 +00:00
Elliott Hughes
4779a11a3d Merge "Move mips fenv implementation details into fenv.c." 2014-06-09 22:27:30 +00:00
Elliott Hughes
89d61243f2 Move mips fenv implementation details into fenv.c.
Change-Id: I2415e4808e40c2981d016c01969ba14ea22bf82e
2014-06-09 15:25:15 -07:00
Elliott Hughes
43bf81e544 Move x86 fenv implementation details into fenv.c.
Change-Id: I6cb8c730483c325dc3cb75c2b2fbdd2d8455a54c
2014-06-09 15:20:59 -07:00
Elliott Hughes
9812a0233c Clean up the ARM fenv.h, moving implementation details into fenv.c.
Change-Id: I919d35db27ec16a6f54a7a5c3c070f33f03d9bb9
2014-06-09 13:57:57 -07:00
Serban Constantinescu
a147a1da5c AArch64: libm: Fix ARM64 fenv_t and refactor ARM64 libm implementation.
This patch fixes the ARM64 ABI for libm. fenv_t is now split in 32bit status
and 32bit control. This mirrors the AArch64 FPU control and status
registers (FPCR, FPSR).

The patch also refactors the libm implementation for ARM64 into a finer
grained control over the FPU registers.

Bionic-benchmarks has been expanded with 3 more benchmarks for floating
point operations. The new libm implementation for ARM64 performs better
over all the math benchmarks available.

Change-Id: I2a7f81d6b4e55c91f8a63a4c69614fc8b1bcf2db
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
2014-06-09 13:52:28 -07:00
Ben Cheng
ff00dc8565 Workaround the GCC "(long)fn -> lfn" optimization bug.
Pass "-fno-builtin-rint -fno-builtin-rintl -fno-builtin-rintf" to avoid
generating self recursions in lrint, lrintl, and lrintf.

BUG: 14225968
Change-Id: Iffc4d8f0692580d636a529f4c8aa9a7a10d7acd8
2014-05-29 16:32:00 -07:00
Elliott Hughes
de9ac71053 Use -fvisibility=hidden to build libm.
Bug: 11156955
Change-Id: I77b7772a44313a1eb3970f5d2c8e2af63690efa4
2014-05-19 16:58:52 -07:00
Elliott Hughes
b4f2f28054 Declare sincos/sincosf/sincosl in <math.h>.
Change-Id: If7b98f98c7ab4d3d77d310be082bff64512d51a8
2014-05-08 21:19:12 -07:00
Elliott Hughes
9a5a3e8e74 Fix <math.h> to quieten most of our warnings.
I've reported the wcsftime bug upstream, but we really just want to use -D
to ensure the buggy code isn't built. (I've also brought our strftime a bit
closer to upstream now we have the right define.)

I don't think upstream is likely to fix all their sign-compare and
uninitialized warnings, so let's just silence them.

As for libm, again upstream isn't likely to fix all their warnings, and
silencing those made the ones that were our fault stand out. I've fixed
our <math.h> to fix the warnings caused by our lack of definitions for
the non-imprecise long-double functions. I checked the C99 standard, and
all these functions are there.

Change-Id: Iee8e1182c1db375058fb2c451eceb212bab47a37
2014-05-05 21:19:47 -07:00
Elliott Hughes
bfa582d032 Update the NOTICE files and improve the script slightly.
Change-Id: Ia131634cd97ca9523e1b63dce41f66247cbaa311
2014-05-05 16:23:15 -07:00
Calin Juravle
1abc9ff6a5 Clean-up _fpmath and fake_long_doubles
- promoted IEEEld2bits to fpmath since most of the where the same for
diffrent archs
- removed _fpmath
- reinstated weak_references
- moved isfinite and isnormal to libc
- clean up fake_long_doubles
- clean up some useless ifdefs
- added missing nexttoward* tests

Bug: 14134235
Change-Id: I95639c4885653fe47fd7dc0570ee5bb3389bbc6b
2014-04-23 19:03:06 +01:00
Elliott Hughes
acbe322e82 Regenerate the NOTICE files.
Change-Id: Iac666f69b930e31bbeac3438812d544c6af55b0f
2014-04-16 17:01:12 -07:00
Elliott Hughes
0f95a55322 Fix arm64 floating point definitions.
Change-Id: I6836da8fc9f66465435a21c51cb18851e20e9645
2014-04-14 15:33:32 -07:00
Elliott Hughes
02c78a3867 Reimplement isinf/isnan/fpclassify.
Also move isinf and isnan into libc like everyone else.

Also move fpclassify to libc like the BSDs (but unlike glibc). We need
this to be able to upgrade our float/double/long double parsing to gdtoa.

Also add some missing aliases. We now have all of:

  isnan, __isnan, isnanf, __isnanf, isnanl, __isnanl,
  isinf, __isinf, isinff, __isinff, isinfl, __isinfl,
  __fpclassify, __fpclassifyd, __fpclassifyf, __fpclassifyl.

Bug: 13469877
Change-Id: I407ffbac06c765a6c5fffda8106c37d7db04f27d
2014-04-14 14:35:47 -07:00
Calin Juravle
f723b70fe0 Emit warnings when linking against imprecise math functions
Change-Id: I3da7b8396a64d7899fcb89452c879806a8a511ff
2014-04-02 19:16:54 +01:00
Calin Juravle
4d77c1151c Fix LP64 libm for 128-bit long doubles
* reworked amd64/_fpmath.h and arm64/_fpmath.h to support 128-bit long
doubles.
* improved tests to cover long double cases
* made modfl an alias for LP32

Tests pass on x86, x86_64, arm, arm64 and mips.

Bug: 12921273

Change-Id: Ibe39acde57972447a8950fa45b1e702acc68ebeb
2014-03-24 11:48:42 +00:00
Calin Juravle
bd3155dc5d Update libm to the upstream head (2014.03.13)
The most relevant changes are the ones in s_erff.c which should improve
the overall speed of exececution and the maximum error in ULP.

Change-Id: I7bd867f902db418db67f02cd58578624357b1ee8
2014-03-13 16:20:36 +00:00
Elliott Hughes
4e54b114f9 Update the NOTICE files.
Change-Id: Ie72a01cddd5b813393656f603689e497b0f88ddd
2014-03-06 15:06:11 -08:00
Pavel Chupin
7ba84d3108 Fix x86_64 build
Fix types after recent update:
https://android-review.googlesource.com/#/c/83435/

Change-Id: I17ed28af84b7adeb8572e18834e66f3264ec061d
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2014-02-28 00:52:09 +04:00
Calin Juravle
26349d8c2e Fix mips build
Change-Id: Ica843d387e115d0b27afd961af73237ec9109ed9
2014-02-26 21:33:36 +00:00
Calin Juravle
2d367905a2 Moved to a more openbsd-like fenv.h
Factored out common declarations to include/fenv.h and pushed
the implementation to .c files.

Bug: 11050744
Change-Id: I446b13cc4bc599d328343a8d392b07de280f6304
2014-02-26 12:30:44 +00:00
Elliott Hughes
a38cb08861 Clean up various warnings in bionic.
Change-Id: Ic57541d0a567fd4ae79f0ad59b2ffde1130eb7d2
2014-02-18 12:04:54 -08:00
Elliott Hughes
c16a453291 Merge "Remove <sys/_types.h>." 2014-02-08 00:23:50 +00:00
Elliott Hughes
9f87a0b285 Remove <sys/_types.h>.
Bug: 12213562
Change-Id: I0d10664f9da60739bdbad0408be0dd61eea3c1fe
2014-02-07 14:55:58 -08:00
Chris Dearman
645d0312c2 [MIPS64] libc/libm support
libc/libm support for MIPS64 targets

Change-Id: I8271941d418612a286be55495f0e95822f90004f
Signed-off-by: Chris Dearman <chris.dearman@imgtec.com>
Signed-off-by: Raghu Gandham <raghu.gandham@imgtec.com>
2014-02-06 16:22:20 -08:00
Ying Wang
609526f97f Use arch-specific LOCAL_ variables to build libm.
Use arch-specific LOCAL_ variables to build libm for both
TARGET_ARCH and TARGET_2ND_ARCH.

Bug: 11654773
Change-Id: I6da794ba722bb68e7484d8869c6eb0425b7d17cb
2014-02-03 17:19:41 -08:00
Colin Cross
d1973ca513 bionic: rename aarch64 target to arm64
Rename aarch64 build targets to arm64.  The gcc toolchain is still
aarch64.

Change-Id: Ia92d8a50824e5329cf00fd6f4f92eae112b7f3a3
2014-01-23 18:35:39 -08:00
Elliott Hughes
54a7494f17 Regenerate the NOTICE files.
Also standardize the orthography in a few places to reduce near-duplicates
in the NOTICE files.

Change-Id: I347c75e817be61ec1b9c5b4b96226feedc8d09ab
2014-01-07 13:46:11 -08:00
Elliott Hughes
28ddd91c49 Fix __isnanl on aarch64.
This fixes the math.__isnanl, math.powl, and math.fdiml tests.

Change-Id: I0086e4a1a82d0e2708fa07cf580a6d9778c548f2
2013-12-19 17:13:56 -08:00
Elliott Hughes
20adf52cf2 We actually have modfl.
Change-Id: I22bb4d14f99a418819f2941c2dfec49094807c5f
2013-12-19 11:30:51 -08:00
Elliott Hughes
241608e9ce Don't use weak aliases in libm.
The aarch64 toolchain doesn't support them, and we were already implementing
most of the fake long-double functions differently anyway.

Change-Id: I4a2f2df81972ee9c34ddfe96cec81b126506d881
2013-12-18 17:18:53 -08:00
Serban Constantinescu
1c4f101a9b AArch64: Initial AArch64 port of libm
This patch adds intial support for AArch64 to bionic's libm.

Change-Id: I9ae0f895bbdd7fe67815e6ca1ead627581163a27
Signed-off-by: Serban Constantinescu <serban.constantinescu@arm.com>
2013-12-16 17:05:37 -08:00
Elliott Hughes
ab61eb366a Switch to upstream sleep(3) and usleep(3).
Also fix the signature of usleep, and the definition of useconds_t which
should be unsigned, as the 'u' in its name implies.

This patch also cleans up the existing FreeBSD hacks by moving the libm
stuff from <sys/cdefs.h> to a libm-private header, and adding comments
about the hacks we use to build FreeBSD source.

Change-Id: Ibe5067a380502df94a0a3a7901969b35411085b6
2013-11-20 16:24:16 -08:00
Elliott Hughes
361847f9ac Fix the x86_64 fenv.h.
We should clean all the fenv.h files up, but not now. I've raised
bug 11050744 as a reminder.

Change-Id: I640c15b0f0477ec1a7891c031860404875bbe4b5
2013-10-02 17:02:58 -07:00
Elliott Hughes
770a349560 Fix libm build for x86_64.
Change-Id: If89da2d5c3d9a88f78ffd8b260ad0f2fd391c608
2013-10-01 17:57:19 -07:00
Pavel Chupin
ce7add19d8 x86_64: libm fixes
* Makefile update for x86_64 target
* amd64 arch files

Change-Id: I8f17e3338bffd89a3086fbddd1e91bb4619eac1b
Signed-off-by: Pavel Chupin <pavel.v.chupin@intel.com>
2013-10-01 11:38:54 -07:00
Elliott Hughes
78419467a2 Take upstream libm changes.
Mostly workarounds for GCC and Clang bugs.

Change-Id: I4ef428a42d4ac6d622659053711a8cc416925727
2013-06-12 16:37:58 -07:00
Elliott Hughes
0493a6f7be Regenerate NOTICE files.
Also clean up some obsolete cruft.

Change-Id: Iec3b36f6607f7a08b72de99294ed5b6cd910dd5f
2013-03-07 11:51:10 -08:00
Elliott Hughes
6260553d48 Revert "Pull the pthread_key_t functions out of pthread.c."
This reverts commit ad59322ae4

somehow my unfinished libm/Android.mk change got into here.

Change-Id: I46be626c5269d60fb1ced9862f2ebaa380b4e0af
2013-02-11 20:18:16 +00:00
Elliott Hughes
ad59322ae4 Pull the pthread_key_t functions out of pthread.c.
This was originally motivated by noticing that we were setting the
wrong bits for the well-known tls entries. That was a harmless bug
because none of the well-known tls entries has a destructor, but
it's best not to leave land mines lying around.

Also add some missing POSIX constants, a new test, and fix
pthread_key_create's return value when we hit the limit.

Change-Id: Ife26ea2f4b40865308e8410ec803b20bcc3e0ed1
2013-02-11 12:00:48 -08:00