Commit Graph

17 Commits

Author SHA1 Message Date
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Stefan Liebler
a4d7fe35cd ppc: Use libc_ifunc macro for time, gettimeofday.
This patch uses the libc_ifunc_hidden macro to create already existing ifunc functions
time and gettimeofday on power. This way, the libc_hidden_def macro can be used
instead of inline assemblies.
On ppc32, the __GI_* symbols do not target the ifunc symbol and thus the
redirection construct has to be applied here.

ChangeLog:

	* sysdeps/unix/sysv/linux/powerpc/gettimeofday.c (__gettimeofday):
	Use libc_ifunc_hidden and libc_hidden_def macro. Redirect ifunced function
	in header for using it as type for ifunc function because __GI_* symbols
	for ppc32 do not target the ifunc symbols.
	* sysdeps/unix/sysv/linux/powerpc/time.c (time): Likewise.
2016-10-07 10:12:46 +02:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Adhemerval Zanella
7bf8fb1042 libc-vdso.h place consolidation
This patch moves the libc-vdso.h internal header from bits folder to
default architecture one and also corrects the remaning includes in
the files.
2015-04-20 08:51:17 -03:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Adhemerval Zanella
d98720e07f PowerPC: Fix gettimeofday ifunc selection
The IFUNC selector for gettimeofday runs before _libc_vdso_platform_setup where
__vdso_gettimeofday is set. The selector then sets __gettimeofday (the internal
version used within GLIBC) to use the system call version instead of the vDSO one.
This patch changes the check if vDSO is available to get its value directly
instead of rely on __vdso_gettimeofday.

This patch changes it by getting the vDSO value directly.

It fixes BZ#16431.
2014-01-20 12:29:51 -06:00
Adhemerval Zanella
736c304a1a PowerPC: Fix ftime gettimeofday internal call returning bogus data
This patches fixes BZ#16430 by setting a different symbol for internal
GLIBC calls that points to ifunc resolvers. For PPC32, if the symbol
is defined as hidden (which is the case for gettimeofday and time) the
compiler will create local branches (symbol@local) and linker will not
create PLT calls (required for IFUNC). This will leads to internal symbol
calling the IFUNC resolver instead of the resolved symbol.
For PPC64 this behavior does not occur because a call to a function in
another translation unit might use a different toc pointer thus requiring
a PLT call.
2014-01-16 06:53:18 -06:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Adhemerval Zanella
76a9b99861 PowerPC: Fix vDSO missing ODP entries
This patch fixes the vDSO symbol used directed in IFUNC resolver where
they do not have an associated ODP entry leading to undefined behavior
in some cases. It adds an artificial OPD static entry to such cases
and set its TOC to non 0 to avoid triggering lazy resolutions.
2013-11-08 05:04:25 -06:00
Adhemerval Zanella
ef26eece63 PowerPC: gettimeofday optimization by using IFUNC 2013-03-15 10:58:56 -03:00
Joseph Myers
f3aae3f3eb Remove CHECK_1 and CHECK_1_NULL_OK. 2013-02-08 01:12:11 +00:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Roland McGrath
d6c33fda03 Switch gettimeofday from INTUSE to libc_hidden_proto. 2012-05-24 13:12:34 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Ulrich Drepper
8c2e201ba9 2005-12-08 Steven Munroe <sjmunroe@us.ibm.com>
Tom Gall <tom_gall@vnet.ibm.com>

	* elf/rtld.c (dl_main): Initialize l_local_scope for sysinfo_map.
	* sysdeps/powerpc/elf/libc-start.c: Move this...
	* sysdeps/unix/sysv/linux/powerpc/libc-start.c: ...to here.
	* sysdeps/powerpc/powerpc32/dl-start.S: Add _dl_main_dispatch label.
	* sysdeps/powerpc/powerpc32/hp-timing.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/Versions: New file.
	* sysdeps/unix/sysv/linux/clock_getres.c: If HAVE_CLOCK_GETRES_VSYSCALL
	is not defined, redefine INTERNAL_VSYSCALL and INLINE_VSYSCALL to
	INTERNAL_SYSCALL and INLINE_SYSCALL respectively.  Otherwise include
	<bits/libc-vdso.h>.  Use INLINE_VSYSCALL and INTERNAL_SYSCALL instead
	of the normal versions throughout the code.
	* sysdeps/unix/sysv/linux/clock_gettime.c: Likewise if
	HAVE_CLOCK_GETTIME_VSYSCALL is defined.
	* sysdeps/unix/sysv/linux/powerpc/bits/libc-vdso.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/dl-vdso.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/dl-vdso.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/get_clockfreq.c: Use vDSO.
	* sysdeps/unix/sysv/linux/powerpc/gettimeofday.c: New file.
	* sysdeps/unix/sysv/linux/powerpc/Makefile: Add dl-vdso to routines.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Define
	INLINE_VSYSCALL, INTERNAL_VSYSCALL, INTERNAL_SYSCALL_NCS,
	INTERNAL_VSYSCALL_NO_SYSCALL_FALLBACK, HAVE_CLOCK_GETRES_VSYSCALL,
	and HAVE_CLOCK_GETTIME_VSYSCALL.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
2005-12-30 07:32:48 +00:00
Ulrich Drepper
a334319f65 (CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4. 2004-12-22 20:10:10 +00:00
Jakub Jelinek
0ecb606cb6 2.5-18.1 2007-07-12 18:26:36 +00:00