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05f3ed0a79
glibc/sysdeps/powerpc/powerpc32
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Joseph Myers 05f3ed0a79 Stop powerpc copysignl raising "invalid" for sNaN argument (bug 20718). 
The powerpc (hard-float) implementations of copysignl, both 32-bit and
64-bit, raise spurious "invalid" exceptions when the first argument is
a signaling NaN.  copysign functions should never raise exceptions
even for signaling NaNs.

The problem is the use of an fcmpu instruction to test the sign of the
high part of the long double argument.  This patch fixes the functions
to use fsel instead (as used for fabsl following my fixes for a
similar bug there), or to examine the integer representation for older
32-bit processors without fsel.

Tested for powerpc64 and powerpc32 (configurations with and without
fsel used).

	[BZ #20718]
	* sysdeps/powerpc/powerpc32/fpu/s_copysignl.S (__copysignl): Do
	not use floating-point comparisons to test sign.
	* sysdeps/powerpc/powerpc64/fpu/s_copysignl.S (__copysignl):
	Likewise.
2016-10-19 22:58:34 +00:00
..
405 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
440 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
464 Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
476 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
970 powerpc: Re-work the Implies structure 2010-06-30 09:57:38 -07:00
a2 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bits Move bits/atomic.h to atomic-machine.h (bug 14912). 2015-09-11 20:00:19 +00:00
cell Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
e500/nofpu Add e500 version of fetestexceptflag. 2016-09-07 17:47:11 +00:00
fpu Stop powerpc copysignl raising "invalid" for sNaN argument (bug 20718). 2016-10-19 22:58:34 +00:00
power4 Use gcc attribute ifunc in libc_ifunc macro instead of inline assembly due to false debuginfo. 2016-10-07 10:03:20 +02:00
power5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
power5+ Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
power6 powerpc: Rearrange cfi_offset calls 2016-03-11 11:31:58 -03:00
power6x Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
power7 powerpc: Rearrange cfi_offset calls 2016-03-11 11:31:58 -03:00
power8 PowerPC: Adjust multiarch Implies for PowerPC32 2013-12-06 05:47:05 -06:00
power9 powerpc: Fix POWER9 implies 2016-09-19 09:35:38 -03:00
__longjmp-common.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
__longjmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
add_n.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
atomic-machine.h Remove atomic_compare_and_exchange_bool_rel. 2016-06-24 23:04:40 +03:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
bzero.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
compat-ppc-mcount.S Fix missing _mcount@GLIBC_2.0 on powerpc32 2012-07-06 23:43:56 +02:00
configure powerpc: drop R_PPC_REL16 check 2015-02-10 06:09:22 -05:00
configure.ac powerpc: drop R_PPC_REL16 check 2015-02-10 06:09:22 -05:00
crti.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-dtprocnum.h * sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_runtime_setup): 2005-06-17 23:11:35 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-machine.c Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-machine.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-start.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gprrest0.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gprrest1.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gprsave0.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
gprsave1.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Implies 2006-01-27 Dwayne Grant McConnell <decimal@us.ibm.com> 2006-01-28 00:15:15 +00:00
libgcc-compat.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
lshift.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Makefile Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
mcount.c PowerPC ugly symbol versioning 2013-10-04 10:38:28 +09:30
memset.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
ppc-mcount.S powerpc32: make PLT call in _mcount compatible with -msecure-plt (bug 20554) 2016-10-09 21:43:50 +02:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
rtld-memset.c powerpc: Use generic memset for RTLD for ppc32/64 2010-09-29 12:21:14 -04:00
setjmp-common.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stackguard-macros.h BZ #15754: CVE-2013-4788 2013-09-23 00:52:09 -04:00
start.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
stpcpy.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strlen.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
strncmp.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
tls-macros.h Remove HAVE_ASM_PPC_REL16 references 2015-03-23 15:33:59 +10:30
tst-audit.h Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Versions Move __mcount_internal from GLIBC_PRIVATE to GLIBC_2.16 2012-06-02 21:21:15 +02:00