Commit Graph

40 Commits

Author SHA1 Message Date
Elliott Hughes
90e10d41c4 Rewrite <fenv.h> for ARM.
The old code was one big no-op.

Bug: http://code.google.com/p/android/issues/detail?id=38196
Change-Id: I201a6ffa477385b2629f45e8c948bdfbd47b5bf1
2012-11-05 08:50:19 -08:00
Elliott Hughes
0f7809d5c3 Start cleaning up libm.
We have two copies of fenv.h for every architecture, one of which
isn't used. We also have unused makefiles and files for architectures
we don't support.

This patch removes all the obviously useless files.

Bug: http://code.google.com/p/android/issues/detail?id=38196
Change-Id: I1919b6621ba513aa24aa947a34815bc51191487c
2012-10-31 13:32:34 -07:00
Andrew Hsieh
2f7d7c6538 Enclosed functions in fenv.h with __BEGIN_DECLS/__END_DECLS
Those are C funcitons

Related CL: https://android-review.googlesource.com/#/c/41833/

Change-Id: I4386bcf948ad31c3690c9b7a145103088133d041
2012-08-21 15:41:34 +08:00
Elliott Hughes
32dbc03c73 Regenerate all NOTICE files with the latest version of the script.
This sorts every entry, so we should have more stability and fewer
merge conflicts in future.

Change-Id: Ifc5347dc53352da22c82d41ca59b483966fcfc6b
2012-08-15 15:43:13 -07:00
Elliott Hughes
ae5c64413b Add dependencies on all the makefiles.
This should help prevent broken builds next time I'm messing with
assembler/compiler/linker flags...

Change-Id: I30f15a3ce3c3f3c60cad7bc59aaba9f42d792224
2012-08-13 14:06:05 -07:00
Elliott Hughes
387d4b7de9 Auto-generate a complete NOTICE file.
Remove the hand-collated ones, and switch to a script that pulls the
copyright headers out of every file and collects the unique ones.

Change-Id: Ied3b98b3f56241df97166c410ff81de4e0157c9d
2012-08-09 16:05:31 -07:00
Shih-wei Liao
4e86ebb4b6 Had include/arm/fenv.h, but missed include/mips/fenv.h.
Needed for the device-build for LLVM's constant folding pass.

Change-Id: I412a98d52458231650801a8b59fe3159a789b8b9
Author: fu@mips.com
2012-07-30 20:12:46 -07:00
xqian6
29aa009924 Enable sqrtf() x86 assembly code
This patch can improve the sqrtf() performance.

Change-Id: Ic9d11d6a9ecd9b263f54d4878e13595e136b95ce
2012-06-25 16:20:09 +08:00
Elliott Hughes
e33af61c70 Remove the last references to SuperH.
Change-Id: Icb44c1f94cb178d90b4c2b1e8f6d175586aec4e1
2012-05-15 17:08:41 -07:00
Chris Dearman
726800e8f4 MIPS support to libm, libdl and libthread_db
Change-Id: I9106721af7fe0cd45df82976250db0d300a20117
Signed-off-by: Raghu Gandham <raghu@mips.com>
2012-05-04 11:34:40 -07:00
Elliott Hughes
7735a38935 Update s_fabsl.c to upstream head.
Bug: http://code.google.com/p/android/issues/detail?id=29539
Change-Id: I843dcfcbfe49e8e9f43c49aae6ade1edb57a3053
2012-04-30 16:12:43 -07:00
Jack Ren
bd0383acf8 libm: fix invalid result of function remquo/remquof
Currently we will get the wrong result as follows:
remquof(0x7bb33336, 0x63000000) = -671088640, 0x00000000
remquo(0xbff0000000000003, 0x3ff0000000000003) = 1, 0x8000000000000000
remquo(0x9120000000000001, 0x0000000000000005) = -1288490188, 0x0000000000000004
while the correct one should be:
remquof(0x7bb33336, 0x63000000) = 1476395008, 0x00000000
remquo(0xbff0000000000003, 0x3ff0000000000003) = -1, 0x8000000000000000
remquo(0x9120000000000001, 0x0000000000000005) = -1288490189, 0x0000000000000001

Fixed in this patch.

Change-Id: I540b348cd10a539f3b39b1753945c893c4c7ec46
Signed-off-by: Jingwei Zhang <jingwei.zhang@intel.com>
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-04-10 12:55:43 +08:00
Jack Ren
1fa7b45df8 libm: cherry-pick one patch from freebsd to fix logb() denormals issue
from http://svnweb.freebsd.org/base?view=revision&revision=176101
"
Oops, fix the fix in rev.1.10.  logb() and logbf() were broken on
 denormals, and logb() remained broken after 1.10 because the fix for
 logbf() was incompletely translated.

Convert to __FBSDID().
"

Change-Id: I54f33648db7c421b06eee1ea8e63c57a179fae0d
Signed-off-by: Jack Ren <jack.ren@intel.com>
Signed-off-by: Jin Wei <wei.a.jin@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-02-28 12:28:05 +08:00
David 'Digit' Turner
70b1668a76 remove obsolete SuperH support
We don't have a toolchain anymore, we don't have working original
kernel headers, and nobody is maintaining this so there is really
no point in keeping this here. Details of the patch:

- removed code paths from Android.mk files related to the SuperH
  architecture ("sh")

- removed libc/arch-sh, linker/arch-sh, libc/kernel/arch-sh

- simplified libc/SYSCALLS.TXT

- simplified the scripts in libc/tools/ and libc/kernel/tools

Change-Id: I26b0e1422bdc347489e4573e2fbec0e402f75560

Signed-off-by: David 'Digit' Turner <digit@android.com>
2012-01-31 20:28:23 +01:00
David 'Digit' Turner
0a1b306fe1 am 32ca348e: am ce0d646c: resolved conflicts for merge of 6cda7b62 to gingerbread-plus-aosp
* commit '32ca348eecb114b9b2a9393f178c82310f590ddb':
  Bionic: x86: Fix libm macro definitions
2011-09-29 21:09:08 -07:00
David 'Digit' Turner
ce0d646cc0 resolved conflicts for merge of 6cda7b62 to gingerbread-plus-aosp
Change-Id: I85bd5291c2a9cd29bff538b6d5a4dcd73f85a1fd
2011-09-30 05:56:51 +02:00
Bruce Beare
6cda7b6249 Bionic: x86: Fix libm macro definitions
http://code.google.com/p/android/issues/detail?id=19276

GCC would remove inline asm due to lack of knowledge
of FPU register changes.

Change-Id: I9f9e8623fa6580843b7cd8178439ace8c2db2d51
Signed-off-by: Mark D Horn <mark.d.horn@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
Author: Jingwei Zhang <jingwei.zhang@intel.com>
2011-09-29 17:35:33 +02:00
Jing Yu
d50225ad20 Disable sincos optimization for sincos calls.
sincos() functions would be turned into infinite calls to
itself if sincos optimization is applied to itself. See
gcc bugzilla http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46926

arm-linux-androideabi-4.4.3 toolchain does not have this problem
because sincos optimization is entirely disabled. Starting
from arm-linux-androideabi-4.6 toolchain, we enable sincos optimization
in gcc.

This patch simply enforce -O0 on this function to minimize the
change.

Change-Id: I0fc00b5f1dd71c0a024943bdedfed29b0d195e82
2011-08-17 10:29:41 -07:00
Bruce Beare
18142abc06 Remove extra/unneeded copy of fenv.h
Orig-Change-Id: I80da2521c50df7e8967af48164cc834abf499c50
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-07-07 22:46:15 +02:00
Bruce Beare
4029e0e7cb Use proper variable typing
Orig-Change-Id: If5c33d90b33f538448ac12e7bee94b4b9173d39c
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2011-07-07 22:46:15 +02:00
David 'Digit' Turner
8e2ff164cc libm: Add nanf() and tgammaf() implementations.
Requested by b/3370708 to export these through RenderScript.

Change-Id: I1ae69f87a1ad4765b2dee8e4a6f2f3a6eb7c5ad4
2011-01-25 17:07:26 +01:00
Chih-Wei Huang
b9aedb2c57 android-x86: use proper variable typing
Change-Id: Iff99932acd2f6cb482fc5da9ff586d7ab2a8b209
2010-12-23 09:32:12 +08:00
David Turner
572fced5b0 am 9691ecc9: Merge "Remove extra/unneeded copy of fenv.h"
* commit '9691ecc9a768e7e08cb6af0b454029195ffc285f':
  Remove extra/unneeded copy of fenv.h
2010-12-14 07:19:17 -08:00
David Turner
9691ecc9a7 Merge "Remove extra/unneeded copy of fenv.h" 2010-12-14 07:09:35 -08:00
David Turner
48bebaeca8 am 4efbf95d: Merge "Use proper variable typing"
* commit '4efbf95d8c88a3a203d687d9048b51e256ef3641':
  Use proper variable typing
2010-12-07 06:38:26 -08:00
David Turner
4efbf95d8c Merge "Use proper variable typing" 2010-12-07 06:27:23 -08:00
Rodrigo Obregon
fddaafceda Bionic: Aliasing problems with frexpf
This patch fixes a known bug in bionic libm
due to aliasing issues in gcc 4.2 and 4.4; more
specifically in frexpf.

The function frexpf is used to extract the
mantissa and exponent from a double precision number.

The bug has already been reported here:
https://code.google.com/p/android/issues/detail?id=6697

Change-Id: I2e1f2e0a45906642d2225b9d150ed391d2bf331c
Signed-off-by: Rodrigo Obregon <robregon@ti.com>
2010-11-05 12:15:26 -05:00
Bruce Beare
52eed0aeb7 Remove extra/unneeded copy of fenv.h
Change-Id: I80da2521c50df7e8967af48164cc834abf499c50
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2010-10-11 12:34:26 -07:00
Bruce Beare
58f2b7ed66 Use proper variable typing
Change-Id: If5c33d90b33f538448ac12e7bee94b4b9173d39c
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2010-10-11 12:34:10 -07:00
David 'Digit' Turner
ce2ebf8d73 libm: remove aliasing issue.
See http://code.google.com/p/android/issues/detail?id=6697
for details about this change.

Change-Id: I516f00c6f3bc99b22be51669e4573246bdd6e33d
2010-09-27 17:35:48 +02:00
David 'Digit' Turner
2beac0f5c6 DO NOT MERGE - add sincos.c to libm compilation
For some reason, a previous backport from master didn't get this.

Change-Id: I59eb96ad9de495a659808fdfb557033476c3d123
2010-06-09 15:49:35 -07:00
David 'Digit' Turner
410b2ae7fb Add sincosl() function to bionic. So that sincos optimization can - DO NOT MERGE
be enabled.

Change-Id: I672cb319689aa4fb3f1f7cd868dda76842bebae9
2010-06-09 14:35:29 -07:00
Jean-Baptiste Queru
c3581dc78a Merge "Sometimes the compiler is very right! Found bug in bessel routines for float." 2010-05-11 10:43:56 -07:00
David Turner
7911e057a5 Merge "Reduce compiler anxiety." 2010-05-11 10:20:15 -07:00
Scott Turner
c1f8dd9f0b Sometimes the compiler is very right! Found bug in bessel routines for float.
Original compiler error:

target arm C: libm <= bionic/libm/src/e_j0f.c
bionic/libm/src/e_j0f.c: In function 'j0f':
bionic/libm/src/e_j0f.c:66: warning: comparison between signed and unsigned integer expressions
bionic/libm/src/e_j0f.c: In function 'y0f':
bionic/libm/src/e_j0f.c:140: warning: comparison between signed and unsigned integer expressions
target arm C: libm <= bionic/libm/src/e_j1.c

It's subtle but ix is masked with 0x7f000000 so it can never ever have a value
greater than 0x80000000. So I switched to using the unmasked hx and added a
cast as a reward to the compiler for being right.

I checked the original routines that e_j0f.c was ported from (in e_j0.c) and
the double's don't use 0x80000000 so this issue didn't exist there.

Let that be a warning to those that just slap on casts to shut up the compiler,
sometimes it's sniffed out a bug for you. :-)

Similar fixes in the other functions.

Change-Id: I7a776e5d4721fc3a9e3bd89179b67e9af3a2ebfa
2010-05-07 15:02:36 -07:00
Scott Turner
72d3489612 Reduce compiler anxiety.
Warning from compiler:

target arm C: libm <= bionic/libm/src/e_atan2.c
bionic/libm/src/e_atan2.c: In function 'atan2':
bionic/libm/src/e_atan2.c:71: warning: suggest parentheses around arithmetic in operand of '|'
target arm C: libm <= bionic/libm/src/e_atan2f.c
2010-01-16 10:39:00 -05:00
Scott Turner
fb02ec25e9 Reversed order of const and static to hush warning from compiler. 2010-01-16 10:23:18 -05:00
Shin-ichiro KAWASAKI
d87945b4e7 added and modified libm to support SuperH architecture 2009-08-31 16:25:42 +09:00
The Android Open Source Project
4e468ed2eb Code drop from //branches/cupcake/...@124589 2008-12-17 18:03:48 -08:00
The Android Open Source Project
a27d2baa0c Initial Contribution 2008-10-21 07:00:00 -07:00