glibc/sysdeps
Joseph Myers 9124ccf76a Fix lgamma implementations for -Wuninitialized.
If you remove the "override CFLAGS += -Wno-uninitialized" in
math/Makefile, you get errors from lgamma implementations of the form:

../sysdeps/ieee754/dbl-64/e_lgamma_r.c: In function '__ieee754_lgamma_r':
../sysdeps/ieee754/dbl-64/e_lgamma_r.c:297:13: error: 'nadj' may be used uninitialized in this function [-Werror=maybe-uninitialized]
  if(hx<0) r = nadj - r;

This is one of the standard kinds of false positive uninitialized
warnings: nadj is set under a certain condition, and then later used
under the same condition.  This patch uses DIAG_* macros to suppress
the warning on the use of nadj.  The ldbl-128 / ldbl-128ibm
implementation has a substantially different structure that avoids
this issue.

Tested for x86_64.  (In fact this patch eliminates the need for that
-Wno-uninitialized on x86_64, but I want to test on more architectures
before removing it.)

	* sysdeps/ieee754/dbl-64/e_lgamma_r.c: Include <libc-internal.h>.
	(__ieee754_lgamma_r): Ignore uninitialized warnings around use of
	NADJ.
	* sysdeps/ieee754/flt-32/e_lgammaf_r.c: Include <libc-internal.h>.
	(__ieee754_lgammaf_r): Ignore uninitialized warnings around use of
	NADJ.
	* sysdeps/ieee754/ldbl-96/e_lgammal_r.c: Include <libc-internal.h>.
	(__ieee754_lgammal_r): Ignore uninitialized warnings around use of
	NADJ.
2015-05-21 23:44:33 +00:00
..
aarch64 [AArch64] Fix inline asm clobber list in tls-macros.h 2015-05-13 15:46:24 +01:00
alpha alpha: Update libm-test-ulps 2015-05-19 09:43:54 -07:00
arm NaCl: Provide non-default values for uname. 2015-05-12 10:54:47 -07:00
generic Refactoring of START for conditions in individual tests 2015-05-14 18:07:06 +03:00
gnu hurd: fix unwind-resume.c build 2015-02-08 18:46:00 +01:00
hppa hppa: Fix feupdateenv and fesetexceptflag (Bug 18111). 2015-03-11 02:48:59 -04:00
i386 Fix i386 atanhl spurious underflows (bug 18049). 2015-05-19 23:05:22 +00:00
ia64 Set errno for log1p on pole/domain error. 2015-04-13 21:19:27 +02:00
ieee754 Fix lgamma implementations for -Wuninitialized. 2015-05-21 23:44:33 +00:00
init_array NPTL: Initializer for .init_array-only configurations. 2015-02-13 13:19:11 -08:00
m68k Set errno for log1p on pole/domain error. 2015-04-13 21:19:27 +02:00
mach Fix warnings 2015-03-21 04:49:44 +01:00
microblaze Replace ELF_RTYPE_CLASS_NOCOPY with ELF_RTYPE_CLASS_COPY 2015-03-05 08:40:41 -08:00
mips Fix mips16 __fpu_control static linking (bug 18397). 2015-05-11 22:58:10 +00:00
nacl NaCl: Set tid field to a unique value. 2015-05-20 14:52:05 -07:00
nios2 Replace ELF_RTYPE_CLASS_NOCOPY with ELF_RTYPE_CLASS_COPY 2015-03-05 08:40:41 -08:00
nptl NPTL: Remove duplicate definition of PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP 2015-03-28 01:50:12 -04:00
posix Move usleep.c using nanosleep to sysdeps/posix. 2015-05-20 14:18:21 -07:00
powerpc libc-vdso.h place consolidation 2015-04-20 08:51:17 -03:00
pthread Fix aio_error thread-safety. 2015-03-06 11:32:24 +01:00
s390 S/390: Regenerate ULPs 2015-04-24 13:37:48 +02:00
sh Replace ELF_RTYPE_CLASS_NOCOPY with ELF_RTYPE_CLASS_COPY 2015-03-05 08:40:41 -08:00
sparc BZ#18434: Fix sem_post EOVERFLOW check for [!__HAVE_64B_ATOMICS]. 2015-05-19 15:04:41 -07:00
tile tile: Enable PI_STATIC_AND_HIDDEN 2015-04-16 09:40:21 -04:00
unix NaCl: Set tid field to a unique value. 2015-05-20 14:52:05 -07:00
wordsize-32 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
wordsize-64 Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
x86 Fix atan / atan2 missing underflows (bug 15319). 2015-02-18 21:10:49 +00:00
x86_64 Remove various ABS macros and replace uses with fabs (or in one case abs) 2015-05-15 11:04:40 +00:00