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5c3e322d3b
glibc/sysdeps/x86_64
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H.J. Lu 5c3e322d3b x86-64: Implement memmove family IFUNC selectors in C 
Implement memmove family IFUNC selectors in C.

All internal calls within libc.so can use IFUNC on x86-64 since unlike
x86, x86-64 supports PC-relative addressing to access the GOT entry so
that it can call via PLT without using an extra register.  For libc.a,
we can't use IFUNC for functions which are called before IFUNC has been
initialized.  Use IFUNC internally reduces the icache footprint since
libc.so and other codes in the process use the same implementations.
This patch uses IFUNC for memmove family functions within libc.

	* sysdeps/x86_64/multiarch/Makefile (sysdep_routines): Add
	memmove-sse2-unaligned-erms, memcpy_chk-nonshared,
	mempcpy_chk-nonshared and memmove_chk-nonshared.
	* sysdeps/x86_64/multiarch/ifunc-impl-list.c
	(__libc_ifunc_impl_list): Add tests for __memmove_chk_erms,
	__memcpy_chk_erms and __mempcpy_chk_erms.  Update comments.
	* sysdeps/x86_64/multiarch/ifunc-memmove.h: New file.
	* sysdeps/x86_64/multiarch/memcpy.c: Likewise.
	* sysdeps/x86_64/multiarch/memcpy_chk-nonshared.S: Likewise.
	* sysdeps/x86_64/multiarch/memcpy_chk.c: Likewise.
	* sysdeps/x86_64/multiarch/memmove-sse2-unaligned-erms.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove.c: Likewise.
	* sysdeps/x86_64/multiarch/memmove_chk-nonshared.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove_chk.c: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy.c: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy_chk-nonshared.S: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy_chk.c: Likewise.
	* sysdeps/x86_64/multiarch/memcpy.S: Removed.
	* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
	* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
	* sysdeps/x86_64/multiarch/memmove-vec-unaligned-erms.S
	(__mempcpy_chk_erms): New function.
	(__memmove_chk_erms): Likewise.
	(__memcpy_chk_erms): New alias.
2017-06-14 12:11:10 -07:00
..
64
fpu Remove __need macros from errno.h (__need_Emath, __need_error_t). 2017-06-14 08:14:34 -04:00
multiarch x86-64: Implement memmove family IFUNC selectors in C 2017-06-14 12:11:10 -07:00
nptl Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
x32 Remove CALL_THREAD_FCT macro 2017-04-04 18:03:35 -03:00
____longjmp_chk.S
__longjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
_mcount.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
abort-instr.h
add_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
addmul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Optimize generic spinlock code and use C11 like atomic macros. 2017-06-06 09:41:56 +02:00
backtrace.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-_setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bsd-setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bzero.S
configure Require binutils 2.24 to build x86-64 glibc [BZ #20139] 2016-07-01 06:03:05 -07:00
configure.ac Require binutils 2.24 to build x86-64 glibc [BZ #20139] 2016-07-01 06:03:05 -07:00
crti.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
crtn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-irel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-lookupcfg.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h PowerPC64 ELFv2 PPC64_OPT_LOCALENTRY 2017-06-14 10:47:25 +09:30
dl-procinfo.c Add sysdeps/x86/dl-procinfo.c 2017-04-10 12:01:45 -07:00
dl-runtime.c
dl-tls.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-tlsdesc.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-trampoline.h x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
dl-trampoline.S x86-64: Improve branch predication in _dl_runtime_resolve_avx512_opt [BZ #21258] 2017-03-21 11:00:12 -07:00
ffs.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ffsll.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
hp-timing.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
htonl.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmain8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ifuncmod8.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies
jmpbuf-offsets.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
jmpbuf-unwind.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
l10nflist.c
ldbl2mpn.c
ldsodefs.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
link-defines.sym
locale-defines.sym
localplt.data Document and fix --enable-bind-now [BZ #21015] 2017-03-02 14:44:28 +01:00
lshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
machine-gmon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
memchr.S x86-64: Optimize memchr/rawmemchr/wmemchr with SSE2/AVX2 2017-06-09 05:13:31 -07:00
memcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcopy.h X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00
memcpy_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memmove_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memmove.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mempcpy_chk.S x86_64: fix static build of __mempcpy_chk for compilers defaulting to PIC/PIE 2017-03-15 16:10:05 -07:00
mempcpy.S X86-64: Remove previous default/SSE2/AVX2 memcpy/memmove 2016-06-08 13:58:08 -07:00
memrchr.S x86_64: Remove redundant REX bytes from memrchr.S 2017-06-05 07:41:26 -07:00
memset_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
memset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
memusage.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mp_clz_tab.c
mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
preconfigure
preconfigure.ac
rawmemchr.S x86_64: Remove L(return_null) from rawmemchr.S 2017-05-20 06:13:38 -07:00
rshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sched_cpucount.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stack-aliasing.h
stackguard-macros.h
stackinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strchrnul.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcpy.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strcspn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strlen.S x86-64: Update strlen.S to support wcslen/wcsnlen 2017-06-05 07:58:23 -07:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S
strrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strspn.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sub_n.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
submul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tls-macros.h
tlsdesc.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit4.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit10.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-audit.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod3a.c
tst-auditmod3b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod4a.c
tst-auditmod4b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod5a.c
tst-auditmod5b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6a.c
tst-auditmod6b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod6c.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod7a.c
tst-auditmod7b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-auditmod10a.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-auditmod10b.c Add missing header files throughout the testsuite. 2017-02-16 17:33:18 -05:00
tst-avx512-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx512mod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx-aux.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avx.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-avxmod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-mallocalign1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod1pie.S
tst-quadmod2.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
tst-quadmod2pie.S
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-ssemod.c x86-64: Verify that _dl_runtime_resolve preserves vector registers 2017-02-09 12:19:58 -08:00
tst-stack-align.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Versions
wcschr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcscmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcslen.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wcsrchr.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
wmemset_chk.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wmemset.S x86-64: Optimize wmemset with SSE2/AVX2/AVX512 2017-06-05 11:09:59 -07:00
wordcopy.c X86-64: Add dummy memcopy.h and wordcopy.c 2016-06-09 04:38:34 -07:00