system/glibc
3
0
Fork 0
Code Issues Projects Releases Wiki Activity
glibc/sysdeps/x86_64
History
Joseph Myers 4060283dec Fix x86/x86_64 expm1l spurious underflow exceptions (bug 16539). 
This patch fixes bug 16539, spurious underflow exceptions from x86 /
x86-64 expm1l.  The problem is that the computation of a base-2
exponent with extra precision involves spurious underflows for
arguments that are small but not subnormal, so a check is added to
just return the argument in those cases.  (If the argument *is*
subnormal, underflowing is correct and the existing code will always
underflow, so it suffices to keep using the existing code in that
case; some expm1 implementations have a bug (bug 16353) with missing
underflow exceptions, but I don't think there's such a bug in this
particular version.)

Tested x86_64 and x86; no ulps updates needed.

(auto-libm-test-out diffs omitted below.)

	[BZ #16539]
	* sysdeps/i386/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]: Just
	return the argument for normal arguments with exponent below -64.
	* sysdeps/x86_64/fpu/e_expl.S (IEEE754_EXPL) [USE_AS_EXPM1L]:
	Likewise.
	* math/auto-libm-test-in: Add another test of expm1.
	* math/auto-libm-test-out: Regenerated.
2014-06-24 21:00:08 +00:00
..
64
Move x86_64 code out of nptl/ subdirectory.
2014-06-11 21:33:32 -07:00
bits
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
fpu
Fix x86/x86_64 expm1l spurious underflow exceptions (bug 16539).
2014-06-24 21:00:08 +00:00
multiarch
Add ifunc tests for x86_64 memset_chk and memset
2014-06-20 14:52:29 -07:00
nptl
Clean up stack-coloring macros.
2014-06-20 19:50:16 -07:00
x32
Move x86_64 code out of nptl/ subdirectory.
2014-06-11 21:33:32 -07:00
____longjmp_chk.S
…
__longjmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
_mcount.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
abort-instr.h
…
add_n.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
addmul_1.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
backtrace.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
bsd-_setjmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
bsd-setjmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
bzero.S
…
cacheinfo.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
configure
Save/restore bound registers in _dl_runtime_resolve
2014-04-09 15:38:09 -07:00
configure.ac
Save/restore bound registers in _dl_runtime_resolve
2014-04-09 15:38:09 -07:00
crti.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
crtn.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
dl-irel.h
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
dl-lookupcfg.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
dl-machine.h
Use glibc_likely instead __builtin_expect.
2014-02-10 15:07:12 +01:00
dl-runtime.c
…
dl-tls.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
dl-tlsdesc.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
dl-tlsdesc.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
dl-trampoline.h
Save/restore bound registers for _dl_runtime_profile
2014-04-16 14:46:49 -07:00
dl-trampoline.S
Save/restore bound registers for _dl_runtime_profile
2014-04-16 14:46:49 -07:00
ffs.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
ffsll.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
hp-timing.c
…
hp-timing.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
htonl.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
Implies
Use x86-64 bits/byteswap.h for both i386 and x86_64
2012-05-30 14:13:18 -07:00
jmpbuf-offsets.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
jmpbuf-unwind.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
l10nflist.c
Minor optimization of popcount in l10nflist
2011-08-11 14:07:04 -04:00
ldbl2mpn.c
…
ldsodefs.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
link-defines.sym
Replace __int128 with __int128_t
2014-05-30 10:50:21 -07:00
locale-defines.sym
…
lshift.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
machine-gmon.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
Makefile
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
memchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memcmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memcpy_chk.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memcpy.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memmove.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
mempcpy_chk.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
mempcpy.S
Remove bounded-pointers handling from x86_64 assembly sources.
2013-02-17 21:57:26 +00:00
memrchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memset_chk.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memset.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
memusage.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
mp_clz_tab.c
…
mul_1.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
preconfigure
rename configure.in to configure.ac
2013-10-30 17:32:08 +10:00
preconfigure.ac
rename configure.in to configure.ac
2013-10-30 17:32:08 +10:00
rawmemchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
rshift.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
rtld-memcmp.c
…
rtld-memset.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
rtld-strchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
rtld-strlen.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
sched_cpucount.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
setjmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
stack-aliasing.h
Clean up stack-coloring macros.
2014-06-20 19:50:16 -07:00
stackguard-macros.h
BZ #15754: CVE-2013-4788
2013-09-23 00:52:09 -04:00
stackinfo.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
start.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
stpcpy_chk.S
…
stpcpy.S
…
strcasecmp_l-nonascii.c
Remove pre-ISO C support
2012-01-07 23:57:22 -05:00
strcasecmp_l.S
…
strcasecmp.S
…
strcat.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strchrnul.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strcmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strcpy_chk.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strcpy.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strcspn.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strlen.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strncase_l-nonascii.c
Remove pre-ISO C support
2012-01-07 23:57:22 -05:00
strncase_l.S
…
strncase.S
…
strncmp.S
…
strnlen.S
Faster strlen on x64.
2013-03-18 07:39:12 +01:00
strpbrk.S
…
strrchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strspn.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
strtok_r.S
Remove bounded-pointers handling from x86_64 assembly sources.
2013-02-17 21:57:26 +00:00
strtok.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
sub_n.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
submul_1.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
sysdep.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tls-macros.h
Split tls-macros.h into sysdeps directories.
2012-07-17 11:30:58 +00:00
tlsdesc.c
Factor mmap/munmap of PT_LOAD segments out of _dl_map_object_from_fd et al.
2014-04-03 10:47:14 -07:00
tlsdesc.sym
…
tst-audit3.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit4.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit5.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit6.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit7.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-audit10.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-audit.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tst-auditmod3a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod3b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod4a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod4b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod5a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod5b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod6c.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod7a.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod7b.c
Move x86_64-specific audit tests to sysdeps/x86_64/.
2013-04-25 19:23:11 +00:00
tst-auditmod10a.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-auditmod10b.c
Save and restore AVX-512 zmm registers to x86-64 ld.so
2014-03-13 11:19:08 -07:00
tst-mallocalign1.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tst-quad1.c
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tst-quad1pie.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quad2.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quad2pie.c
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quadmod1.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tst-quadmod1pie.S
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-quadmod2.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
tst-quadmod2pie.S
Handle R_X86_64_RELATIVE64 and R_X86_64_64 for x32
2012-05-10 17:05:06 -07:00
tst-stack-align.h
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
Versions
…
wcschr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
wcscmp.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
wcslen.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00
wcsrchr.S
Update copyright notices with scripts/update-copyrights
2014-01-01 22:00:23 +10:00