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bbabb868cd
glibc/sysdeps/powerpc/powerpc32
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Tulio Magno Quites Machado Filho bbabb868cd powerpc: Fix syscalls during early process initialization [BZ #22685] 
The tunables framework needs to execute syscall early in process
initialization, before the TCB is available for consumption.  This
behavior conflicts with powerpc{|64|64le}'s lock elision code, that
checks the TCB before trying to abort transactions immediately before
executing a syscall.

This patch adds a powerpc-specific implementation of __access_noerrno
that does not abort transactions before the executing syscall.

Tested on powerpc{|64|64le}.

	[BZ #22685]
	* sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Renamed
	from ABORT_TRANSACTION.
	(ABORT_TRANSACTION): Redirect to ABORT_TRANSACTION_IMPL.
	* sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION,
	ABORT_TRANSACTION_IMPL): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/not-errno.h: New file.  Reuse
	Linux code, but remove the code that aborts transactions.

Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
Tested-by: Aurelien Jarno <aurelien@aurel32.net>
(cherry picked from commit 4612268a0a)
2018-01-29 14:50:19 -02:00
..
405 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +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. 2017-01-01 00:14:16 +00:00
970
a2 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
bits Define wordsize.h macros everywhere 2016-11-04 09:37:44 -07:00
cell Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
e500/nofpu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fpu Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
power4 Remove bits/string.h. 2017-06-20 08:21:24 -04:00
power5 Move wrappers to libm-compat-calls-auto 2017-01-04 16:25:04 -02:00
power5+ Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
power6 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
power6x Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
power7 Use locale_t, not __locale_t, throughout glibc 2017-06-20 20:30:06 -04:00
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. 2017-01-01 00:14:16 +00:00
__longjmp.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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 Rename struct ucontext tag (bug 21457). 2017-06-26 22:03:58 +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 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
compat-ppc-mcount.S
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. 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-dtprocnum.h
dl-irel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-machine.h Fix TLS relocations against local symbols on powerpc32, sparc32 and sparc64 2017-11-14 21:07:52 +01:00
dl-start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-trampoline.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gprrest0.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gprrest1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gprsave0.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gprsave1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies
libgcc-compat.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Move powerpc ports pieces to libc. 2013-10-04 16:02:33 +00:00
mcount.c
memset.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
mul_1.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ppc-mcount.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rshift.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
rtld-memset.c
setjmp-common.S 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
stackguard-macros.h
start.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
stpcpy.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
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
strlen.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
strncmp.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
symbol-hacks.h Build divdi3 only for architecture that required it 2017-04-06 15:14:34 -03:00
sysdep.h powerpc: Fix syscalls during early process initialization [BZ #22685] 2018-01-29 14:50:19 -02:00
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. 2017-01-01 00:14:16 +00:00
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