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| author | Joseph Myers <joseph@codesourcery.com> | 2014-01-03 20:56:18 +0000 |
|---|---|---|
| committer | Joseph Myers <joseph@codesourcery.com> | 2014-01-03 20:56:40 +0000 |
| commit | 22562bb222a91e0ecc416b19accd98e10c0d26be (patch) | |
| tree | ca6a3b3c34c8f2cce47ba4bcb982bfd4d0c481a1 | |
| parent | 0da43124a9b5c24fe2e877e3d94a4f3d859f0486 (diff) | |
| download | glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.zip glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.tar.gz glibc-22562bb222a91e0ecc416b19accd98e10c0d26be.tar.bz2 | |
Fix soft-float ldbl-128ibm atan2l signs of zero results (bug 16390).
This patch fixes bug 16390, incorrect signs of zero results from
ldbl-128ibm atan2l, soft-float only. The problem is a longstanding
GCC bug with fabsl not being correct for signed zero for soft float,
and the fix is using -fno-builtin-fabsl as a workaround, as already
done for various other source files. Tested powerpc-nofpu.
* sysdeps/powerpc/nofpu/Makefile [$(subdir) = math]
(CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl.
| -rw-r--r-- | ChangeLog | 6 | ||||
| -rw-r--r-- | NEWS | 2 | ||||
| -rw-r--r-- | sysdeps/powerpc/nofpu/Makefile | 1 |
3 files changed, 8 insertions, 1 deletions
@@ -1,3 +1,9 @@ +2014-01-03 Joseph Myers <joseph@codesourcery.com> + + [BZ #16390] + * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] + (CFLAGS-e_atan2l.c): Use -fno-builtin-fabsl. + 2014-01-03 Adhemerval Zanella <azanella@linux.vnet.ibm.com> * sysdeps/powerpc/powerpc64/multiarch/strcasecmp-power7.S: Remove @@ -24,7 +24,7 @@ Version 2.19 16143, 16144, 16146, 16150, 16151, 16153, 16167, 16172, 16195, 16214, 16245, 16271, 16274, 16283, 16289, 16293, 16314, 16316, 16330, 16337, 16338, 16356, 16365, 16366, 16369, 16372, 16375, 16379, 16384, 16385, - 16386. + 16386, 16390. * Slovenian translations for glibc messages have been contributed by the Translation Project's Slovenian team of translators. diff --git a/sysdeps/powerpc/nofpu/Makefile b/sysdeps/powerpc/nofpu/Makefile index 9de7c43..99761ef 100644 --- a/sysdeps/powerpc/nofpu/Makefile +++ b/sysdeps/powerpc/nofpu/Makefile @@ -15,6 +15,7 @@ CPPFLAGS += -I../soft-fp/ # gcc-4.1.1 and may be too late for gcc-4.2. So we need these flags # until the fix in a gcc release and glibc drops support for earlier # versions of gcc. +CFLAGS-e_atan2l.c += -fno-builtin-fabsl CFLAGS-e_hypotl.c += -fno-builtin-fabsl CFLAGS-e_powl.c += -fno-builtin-fabsl CFLAGS-s_ccoshl.c += -fno-builtin-fabsl |