Commit Graph

35 Commits

Author SHA1 Message Date
Joseph Myers
d614a75396 Update copyright dates with scripts/update-copyrights. 2020-01-01 00:14:33 +00:00
Paul Eggert
5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:

sed -ri '
  s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
  s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
  $(find $(git ls-files) -prune -type f \
      ! -name '*.po' \
      ! -name 'ChangeLog*' \
      ! -path COPYING ! -path COPYING.LIB \
      ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
      ! -path manual/texinfo.tex ! -path scripts/config.guess \
      ! -path scripts/config.sub ! -path scripts/install-sh \
      ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
      ! -path INSTALL ! -path  locale/programs/charmap-kw.h \
      ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
      ! '(' -name configure \
            -execdir test -f configure.ac -o -f configure.in ';' ')' \
      ! '(' -name preconfigure \
            -execdir test -f preconfigure.ac ';' ')' \
      -print)

and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:

  chmod a+x sysdeps/unix/sysv/linux/riscv/configure
  # Omit irrelevant whitespace and comment-only changes,
  # perhaps from a slightly-different Autoconf version.
  git checkout -f \
    sysdeps/csky/configure \
    sysdeps/hppa/configure \
    sysdeps/riscv/configure \
    sysdeps/unix/sysv/linux/csky/configure
  # Omit changes that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
  git checkout -f \
    sysdeps/powerpc/powerpc64/ppc-mcount.S \
    sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
  # Omit change that caused a pre-commit check to fail like this:
  # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
  git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
2019-09-07 02:43:31 -07:00
Joseph Myers
04277e02d7 Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
2019-01-01 00:11:28 +00:00
Adhemerval Zanella
f0458cf4f9 powerpc: Only enable TLE with PPC_FEATURE2_HTM_NOSC
Linux from 3.9 through 4.2 does not abort HTM transaction on syscalls,
instead it suspend and resume it when leaving the kernel.  The
side-effects of the syscall will always remain visible, even if the
transaction is aborted.  This is an issue when transaction is used along
with futex syscall, on pthread_cond_wait for instance, where the futex
call might succeed but the transaction is rolled back leading the
pthread_cond object in an inconsistent state.

Glibc used to prevent it by always aborting a transaction before issuing
a syscall.  Linux 4.2 also decided to abort active transaction in
syscalls which makes the glibc workaround superfluous.  Worse, glibc
transaction abortion leads to a performance issue on recent kernels
where the HTM state is saved/restore lazily (v4.9).  By aborting a
transaction on every syscalls, regardless whether a transaction has being
initiated before, GLIBS makes the kernel always save/restore HTM state
(it can not even lazily disable it after a certain number of syscall
iterations).

Because of this shortcoming, Transactional Lock Elision is just enabled
when it has been explicitly set (either by tunables of by a configure
switch) and if kernel aborts HTM transactions on syscalls
(PPC_FEATURE2_HTM_NOSC).  It is reported that using simple benchmark [1],
the context-switch is about 5% faster by not issuing a tabort in every
syscall in newer kernels.

Checked on powerpc64le-linux-gnu with 4.4.0 kernel (Ubuntu 16.04).

	* NEWS: Add note about new TLE support on powerpc64le.
	* sysdeps/powerpc/nptl/tcb-offsets.sym (TM_CAPABLE): Remove.
	* sysdeps/powerpc/nptl/tls.h (tcbhead_t): Rename tm_capable to
	__ununsed1.
	(TLS_INIT_TP, TLS_DEFINE_INIT_TP): Remove tm_capable setup.
	(THREAD_GET_TM_CAPABLE, THREAD_SET_TM_CAPABLE): Remove macros.
	* sysdeps/powerpc/powerpc32/sysdep.h,
	sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION_IMPL,
	ABORT_TRANSACTION): Remove macros.
	* sysdeps/powerpc/sysdep.h (ABORT_TRANSACTION): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/elision-conf.c (elision_init): Set
	__pthread_force_elision iff PPC_FEATURE2_HTM_NOSC is set.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h,
	sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h
	sysdeps/unix/sysv/linux/powerpc/syscall.S (ABORT_TRANSACTION): Remove
	usage.
	* sysdeps/unix/sysv/linux/powerpc/not-errno.h: Remove file.

Reported-by: Breno Leitão <leitao@debian.org>
2018-09-21 10:18:03 -07:00
Adhemerval Zanella
e921c89e01 powerpc: Fix TLE build for SPE (BZ #22926)
Some SPE opcodes clashes with some recent PowerISA opcodes and
until recently gas did not complain about it.  However binutils
recently changed it and now VLE configured gas does not support to
assembler some instruction that might class with VLE (HTM for
instance).  It also does not help that glibc build hardware lock
elision support as default (regardless of assembler support).

Although runtime will not actually enables TLE on SPE hardware
(since kernel will not advertise it), I see little advantage on
adding HTM support on SPE built glibc.  SPE uses an incompatible
ABI which does not allow share the same build with default
powerpc and HTM code slows down SPE without any benefict.

This patch fixes it by only building HTM when SPE configuration
is not used.

Checked with a powerpc-linux-gnuspe build. I also did some sniff
tests on a e500 hardware without any issue.

	[BZ #22926]
	* sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Define
	empty for __SPE__.
	* sysdeps/powerpc/sysdep.h (ABORT_TRANSACTION): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/elision-lock.c (__lll_lock_elision):
	Do not build hardware transactional code for __SPE__.
	* sysdeps/unix/sysv/linux/powerpc/elision-trylock.c
	(__lll_trylock_elision): Likewise.
	* sysdeps/unix/sysv/linux/powerpc/elision-unlock.c
	(__lll_unlock_elision): Likewise.
2018-03-07 17:39:44 -03:00
Joseph Myers
688903eb3e Update copyright dates with scripts/update-copyrights.
* All files with FSF copyright notices: Update copyright dates
	using scripts/update-copyrights.
	* locale/programs/charmap-kw.h: Regenerated.
	* locale/programs/locfile-kw.h: Likewise.
2018-01-01 00:32:25 +00:00
Rogerio Alves
07ed18d26a Add elision tunables
This patch adds several new tunables to control the behavior of
elision on supported platforms[1].   Since elision now depends
on tunables, we should always *compile* with elision enabled,
and leave the code disabled, but available for runtime
selection.  This gives us *much* better compile-time testing of
the existing code to avoid bit-rot[2].

Tested on ppc, ppc64, ppc64le, s390x and x86_64.

[1] This part of the patch was initially proposed by
Paul Murphy but was "staled" because the framework have changed
since the patch was originally proposed:

https://patchwork.sourceware.org/patch/10342/

[2] This part of the patch was inititally proposed as a RFC by
Carlos O'Donnell.  Make sense to me integrate this on the patch:

https://sourceware.org/ml/libc-alpha/2017-05/msg00335.html

	* elf/dl-tunables.list: Add elision parameters.
	* manual/tunables.texi: Add entries about elision tunable.
	* sysdeps/unix/sysv/linux/powerpc/elision-conf.c:
	Add callback functions to dynamically enable/disable elision.
	Add multiple callbacks functions to set elision parameters.
	Deleted __libc_enable_secure check.
	* sysdeps/unix/sysv/linux/s390/elision-conf.c: Likewise.
	* sysdeps/unix/sysv/linux/x86/elision-conf.c: Likewise.
	* configure: Regenerated.
	* configure.ac: Option enable_lock_elision was deleted.
	* config.h.in: ENABLE_LOCK_ELISION flag was deleted.
	* config.make.in: Remove references to enable_lock_elision.
	* manual/install.texi: Elision configure option was removed.
	* INSTALL: Regenerated to remove enable_lock_elision.
	* nptl/Makefile:
	Disable elision so it can verify error case for destroying a mutex.
	* sysdeps/powerpc/nptl/elide.h:
	Cleanup ENABLE_LOCK_ELISION check.
	Deleted macros for the case when ENABLE_LOCK_ELISION was not defined.
	* sysdeps/s390/configure: Regenerated.
	* sysdeps/s390/configure.ac: Remove references to enable_lock_elision..
	* nptl/tst-mutex8.c:
	Deleted all #ifndef ENABLE_LOCK_ELISION from the test.
	* sysdeps/powerpc/powerpc32/sysdep.h:
	Deleted all ENABLE_LOCK_ELISION checks.
	* sysdeps/powerpc/powerpc64/sysdep.h: Likewise.
	* sysdeps/powerpc/sysdep.h: Likewise.
	* sysdeps/s390/nptl/bits/pthreadtypes-arch.h: Likewise.
	* sysdeps/unix/sysv/linux/powerpc/force-elision.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/elision-conf.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/force-elision.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
	* sysdeps/unix/sysv/linux/s390/Makefile: Remove references to
	enable-lock-elision.

Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com>
2017-12-05 17:48:48 -02:00
Joseph Myers
bfff8b1bec Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Tulio Magno Quites Machado Filho
42bf1c8971 powerpc: Enforce compiler barriers on hardware transactions
Work around a GCC behavior with hardware transactional memory built-ins.
GCC doesn't treat the PowerPC transactional built-ins as compiler
barriers, moving instructions past the transaction boundaries and
altering their atomicity.
2016-01-08 17:47:33 -02:00
Joseph Myers
f7a9f785e5 Update copyright dates with scripts/update-copyrights. 2016-01-04 16:05:18 +00:00
Adhemerval Zanella
56cf276381 powerpc: abort transaction in syscalls
Linux kernel powerpc documentation states issuing a syscall inside a
transaction is not recommended and may lead to undefined behavior. It
also states syscalls does not abort transactoin neither they run in
transactional state.

To avoid side-effects being visible outside transactions, GLIBC with
lock elision enabled will issue a transaction abort instruction just
before all syscalls if hardware supports hardware transactions.
2015-01-12 06:32:08 -05:00
Joseph Myers
b168057aaa Update copyright dates with scripts/update-copyrights. 2015-01-02 16:29:47 +00:00
Adam Conrad
105fa38156 Allow sys/auxv.h to be used from the testsuite on powerpc and sparc.
elf/tst-auxv.c includes misc/sys/auxv.h, which ends up not actually
being included due to the guard overlap, and getauxval becomes an
implicit declaration and implicit pointer conversion which means, at
best, the test isn't actually testing what it thinks it is and, at
worst, it'll crash and burn on platforms where implict pointer
conversion is a Very Bad Thing.

	* sysdeps/powerpc/bits/hwcap.h: Allow _SYSDEPS_SYSDEP_H guard as a
	synonym for _SYS_AUXV_H to allow direct inclusion.
	* sysdeps/sparc/bits/hwcap.h: Likewise.
	* sysdeps/powerpc/sysdep.h: Define _SYSDEPS_SYSDEP_H instead of
	_SYS_AUXV_H so we can include sysdep.h and sys/auxv.h together.
	* sysdeps/sparc/sysdep.h: Likewise.
2014-02-21 00:24:03 -07:00
Allan McRae
d4697bc93d Update copyright notices with scripts/update-copyrights 2014-01-01 22:00:23 +10:00
Alan Modra
7b88401f3b PowerPC floating point little-endian [12 of 15]
http://sourceware.org/ml/libc-alpha/2013-08/msg00087.html

Fixes for little-endian in 32-bit assembly.

	* sysdeps/powerpc/sysdep.h (LOWORD, HIWORD, HISHORT): Define.
	* sysdeps/powerpc/powerpc32/fpu/s_copysign.S: Load little-endian
	words of double from correct stack offsets.
	* sysdeps/powerpc/powerpc32/fpu/s_copysignl.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_lrint.S: Likewise.
	* sysdeps/powerpc/powerpc32/fpu/s_lround.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llrint.S: Likewise.
	* sysdeps/powerpc/powerpc32/power4/fpu/s_llrintf.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_llround.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5+/fpu/s_lround.S: Likewise.
	* sysdeps/powerpc/powerpc32/power5/fpu/s_isnan.S: Likewise.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_isnan.S: Likewise.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llrint.S: Likewise.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llrintf.S: Likewise.
	* sysdeps/powerpc/powerpc32/power6/fpu/s_llround.S: Likewise.
	* sysdeps/powerpc/powerpc32/power7/fpu/s_finite.S: Likewise.
	* sysdeps/powerpc/powerpc32/power7/fpu/s_isinf.S: Likewise.
	* sysdeps/powerpc/powerpc32/power7/fpu/s_isnan.S: Likewise.
	* sysdeps/powerpc/powerpc64/power7/fpu/s_finite.S: Use HISHORT.
	* sysdeps/powerpc/powerpc64/power7/fpu/s_isinf.S: Likewise.
2013-10-04 10:35:43 +09:30
Joseph Myers
9c84384cc1 Remove trailing whitespace. 2013-06-05 20:44:03 +00:00
Joseph Myers
568035b787 Update copyright notices with scripts/update-copyrights. 2013-01-02 19:05:09 +00:00
Joseph Myers
9003570a49 Define _SYS_AUXV_H to 1 not empty in sysdeps/powerpc/sysdep.h. 2012-12-04 21:45:01 +00:00
Marek Polacek
b67e9372b2 Get rid of ASM_TYPE_DIRECTIVE{,_PREFIX}. 2012-08-02 21:04:29 +02:00
Richard Henderson
c7683a6d02 Add <sys/auxv.h> and getauxval. 2012-05-20 10:40:35 -07:00
Paul Eggert
59ba27a63a Replace FSF snail mail address with URLs. 2012-02-09 23:18:22 +00:00
Marek Polacek
622c86f480 Remove __ELF__ conditionals 2012-02-07 00:41:11 +01:00
Andreas Schwab
2123d5815e Fix wrong PPC_FEATURE_* values.
Nothing uses these wrong values yet, but it fixes a warning due to
conflicting definitions in <asm/cputable.h>.
2009-07-05 23:46:03 -07:00
Ulrich Drepper
1642331d30 [BZ #6817]
2008-08-01  Steven Munroe  <sjmunroe@us.ibm.com>
	    Carlos Eduardo Seo  <cseo@linux.vnet.ibm.com>

	[BZ #6817]
	* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags):
	Added the members 'vsx' and 'arch_2_06'.
	(_dl_powerpc_platforms): Add the member 'power7'.
	* sysdeps/powerpc/dl-procinfo.h: Modify _DL_HWCAP_FIRST
	to reflect the changes required by VSX and ISA 2.06.
	Modify _DL_PLATFORMS_COUNT to reflect the addition of
	'power7'.
	Defined PPC_PLATFORM_POWER7.
	(_dl_string_platform): Add support for POWER7.
	* sysdeps/powerpc/sysdep.h: Define bit masks for VSX
	capability and ISA 2.06.
2008-08-08 04:51:57 +00:00
Ulrich Drepper
594d423aa3 * elf/dl-support.c: Include dl-procinfo.h.
* sysdeps/powerpc/dl-procinfo.h (PPC_PLATFORM_POWER4,
	PPC_PLATFORM_PPC970, PPC_PLATFORM_POWER5, PPC_PLATFORM_POWER5_PLUS,
	PPC_PLATFORM_POWER6, PPC_PLATFORM_CELL_BE, PPC_PLATFORM_POWER6X):
	Define.
	(_dl_string_platform): Use PPC_PLATFORM_* macros instead of
	hardcoded constants.
	* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_platform): Use
	PPC_PLATFORM_* macros for array designators.

2006-11-11  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 3 new cap
	names to the beginning.
	(_dl_powerpc_platforms): Add "power6x".
	* sysdeps/powerpc/dl-procinfo.h (_DL_HWCAP_FIRST): Decrease.
	(HWCAP_IMPORTANT): Add PPC_FEATURE_HAS_DFP.
	(_DL_PLATFORMS_COUNT): Increase.
	(_dl_string_platform): Handle power6x case.
	* sysdeps/powerpc/sysdep.h (PPC_FEATURE_PA6T, PPC_FEATURE_HAS_DFP,
	PPC_FEATURE_POWER6_EXT): Define.
	(PPC_FEATURE_POWER5, PPC_FEATURE_POWER5_PLUS): Correct Comment.
2006-12-19 15:30:39 +00:00
Ulrich Drepper
4cd3633d1a 2006-09-14 Jakub Jelinek <jakub@redhat.com>
Steven Munroe  <sjmunroe@us.ibm.com>
	    
	* sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add 4 new cap
	names to the beginning.  Rename "cell" to "cellbe".
	(_dl_powerpc_platforms): New.
	* sysdeps/powerpc/dl-procinfo.h (_DL_HWCAP_FIRST): Decrease.
	(HWCAP_IMPORTANT): Remove power{4,5,5+} and cell.
	(_DL_PLATFORMS_COUNT, _DL_FIRST_PLATFORM): Define.
	(_DL_HWCAP_PLATFORM): Define to new mask.
	(_dl_platform_string, _dl_string_platform): New functions.
	* sysdeps/powerpc/sysdep.h (PPC_FEATURE_BOOKE, PPC_FEATURE_SMT,
	PPC_FEATURE_ICACHE_SNOOP, PPC_FEATURE_ARCH_2_05): Define.
2006-09-15 07:48:10 +00:00
Ulrich Drepper
8f84d93108 [BZ #1877]
2005-11-17  Steven Munroe  <sjmunroe@us.ibm.com>
	[BZ #1877]
	* string/test-strncmp.c (do_test_limit): Handle zero length and
	non-zero align values.
	(test_main): Correct do_test_limit tests for 64-bit.

2005-11-15  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/sysdep.h (PPC_FEATURE_HAS_SPE,
	PPC_FEATURE_HAS_EFP_SINGLE, PPC_FEATURE_HAS_EFP_DOUBLE,
	PPC_FEATURE_NO_TB, PPC_FEATURE_POWER4, PPC_FEATURE_POWER5,
	PPC_FEATURE_POWER5_PLUS, PPC_FEATURE_CELL, PPC_FEATURE_970):
	Define to match 2.6.15 kernel.

	* sysdeps/powerpc/fpu/e_sqrt.c: Remove dl-procinfo.h include.
	* sysdeps/powerpc/fpu/e_sqrtf.c: Likewise.
	* sysdeps/powerpc/fpu/w_sqrtf.c: Likewise.
2005-11-18 00:12:44 +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
Ulrich Drepper
ffdd5e50e1 Update.
2004-05-25  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/powerpc/fpu/Makefile: Make ld.so a dependency of libm.so.
	* sysdeps/powerpc/fpu/bits/mathinline.h [__LIBC_INERNAL_MATH_INLINES]
	(__ieee754_sqrt): Define as __MATH_INLINE using fsqrt instruction.
	(__ieee754_sqrtf): Define as __MATH_INLINE using fsqrts instruction.
	* sysdeps/powerpc/fpu/e_sqrt.c (__slow_ieee754_sqrt): Moved
	implementation from w_sqrt.c.
	* sysdeps/powerpc/fpu/e_sqrtf.c (__slow_ieee754_sqrtf): Moved
	implementation from w_sqrtf.c.
	* sysdeps/powerpc/fpu/w_sqrt.c (__sqrt): Wrapper implementation
	using inline __ieee754_sqrt().
	* sysdeps/powerpc/fpu/w_sqrtf.c (__sqrtf): Wrapper implementation
	using inline __ieee754_sqrtf().
	* sysdeps/powerpc/powerpc32/sysdep.h [__ASSEMBLER__]: Include
	<sysdeps/powerpc/sysdep.h> independent of __ASSEMBLER__.
	* sysdeps/powerpc/sysdep.h [__ASSEMBLER__] (PPC_FEATURE_*): Define
	PPC_FEATURE_*  independent of __ASSEMBLER__.

2004-05-25  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/pthread/aio_notify.c: Use <> instead of "" for aio_misc.h
	include.
	(aio_start_notify_thread): Define if not defined.
	(notify_func_wrapper): Use it.
	* sysdeps/pthread/aio_misc.c: Use <> instead of "" for aio_misc.h
	include.
	(aio_create_helper_thread): Define if not defined.
	(__aio_create_helper_thread): New function.
	(__aio_enqueue_request): Use aio_create_helper_thread.

	* nis/ypclnt.c (ypall_data, ypall_foreach): Remove.
	(struct ypresp_all_data): New type.
	(__xdr_ypresp_all): Change second argument to
	struct ypresp_all_data *.  Replace ypall_foreach and
	ypall_data with objp->foreach and objp->data.
	(yp_all): Remove status variable, add data.  Replace
	all uses of status with data.status.  Initialize data.foreach
	and data.data instead of ypall_foreach and ypall_data.

2004-05-24  Jakub Jelinek  <jakub@redhat.com>

	* elf/dl-lookup.c (add_dependency): Set DF_1_NODELETE bit
	in l_flags_1, not in l_flags.
2004-05-26 04:47:00 +00:00
Ulrich Drepper
5ef6ae4bdb Update.
2004-01-14  Steven Munroe  <sjmunroe@us.ibm.com>

	* include/libc-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME]
	(_symbol_version): Use C_SYMBOL_DOT_NAME to create '.'ed symbols.
	(_default_symbol_version): Use C_SYMBOL_DOT_NAME to create '.'ed
	symbols.
	* sysdeps/powerpc/Makefile: Add rtld-global-offsets.sym to
	gen-as-const-headers.
	* sysdeps/powerpc/elf/rtld-global-offsets.sym: New file.
	* sysdeps/powerpc/sysdep.h: Define v# symbols for vector registers.
	Define PPC_FEATURE_* masks for Aux Vector AT_HWCAP.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_SWAPCONTEXT_SYSCALL): Define for PPC and 2.6.0 kernels.
	* sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h [!__WORDSIZE == 32]:
	Declare mcontext_t inline and include altivec state for 64-bit.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions: Add GLIBC_2.3.4
	versions for setcontext, getcontext, and swapcontext.

	* sysdeps/unix/sysv/linux/powerpc/powerpc64/Versions: Add GLIBC_2.3.4
	versions for setcontext, getcontext, swapcontext, and makecontext.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/getcontext.S
	(__getcontext):  Upgrade to save Altivec regs and version GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)](__novec_getcontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/makecontext.S
	(__makecontext): Use parm save area instead of compiler_dw to hold
	context pointer.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S
	(__setcontext):  Upgrade to restore Altivec regs and version
	GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)](__novec_setcontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S
	(__swapcontext): Upgrade to swap Altivec regs and version GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3, GLIBC_2_3_4)](__novec_swapcontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc64/ucontext_i.h
	(SIGCONTEXT_V_REGS_PTR, SIGCONTEXT_V_RESERVE): Defined.


2004-01-12  Steven Munroe  <sjmunroe@us.ibm.com>

	* sysdeps/unix/sysv/linux/powerpc/powerpc32/Versions: Add GLIBC_2.3.4
	versions for setcontext, getcontext, swapcontext, and makecontext.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
	(__getcontext):  Upgrade to save Altivec regs and version GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)](__novec_getcontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
	(__makecontext): Upgrade to align for Altivec regs and version
	GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)](__novec_makecontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
	(__setcontext):  Upgrade to restore Altivec regs and version
	GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)](__novec_setcontext):
	Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
	(__swapcontext): Upgrade to swap Altivec regs and version GLIBC_2_3_4.
	[SHLIB_COMPAT (libc, GLIBC_2_3_3, GLIBC_2_3_4)]
	(__novec_swapcontext): Compatible with GLIBC_2.3.3 release.
	* sysdeps/unix/sysv/linux/powerpc/powerpc32/ucontext_i.h:
	(_UC_VSCR, _UC_VRSAVE): Define.
	(_FRAME_BACKCHAIN, _FRAME_LR_SAVE,_FRAME_PARM_SAVE1,_FRAME_PARM_SAVE2,
	_FRAME_PARM_SAVE3, _FRAME_PARM_SAVE4): Defined.
2004-01-16 04:50:59 +00:00
Roland McGrath
b80a3db02e * sysdeps/powerpc/sysdep.h: Remove powerpc32 specific macros.
* sysdeps/powerpc/powerpc32/sysdep.h: New file.  Define powerpc32
	specific macros copied from sysdeps/powerpc/sysdep.h.
	* sysdeps/powerpc/powerpc64/sysdep.h: New file.  Define powerpc64
	specific macros.
	* sysdeps/unix/powerpc/sysdep.h: Include <bits/wordsize.h>.
	[__WORDSIZE==64]: Include sysdeps/powerpc/powerpc64/sysdep.h.
	[!__WORDSIZE==64]: Include sysdeps/powerpc/powerpc32/sysdep.h.
2002-09-20 23:46:03 +00:00
Roland McGrath
7ac887d438 2001-11-05 Roland McGrath <roland@frob.com>
* sysdeps/powerpc/elf/sysdep.h: Remove this file, because it overrides
	the more-specific unix/sysv/linux/powerpc file and breaks everything.
	* sysdeps/powerpc/sysdep.h (ALIGNARG, ASM_TYPE_DIRECTIVE,
	ASM_SIZE_DIRECTIVE, CALL_MCOUNT, ENTRY, EALIGN, DO_CALL, JUMPTARGET,
	PSEUDO, PSEUDO_RET, PSEUDO_END, L, C_TEXT): These macros moved here
	here, put under [__ELF__].
2001-11-05 09:30:21 +00:00
Andreas Jaeger
41bdb6e20c Update to LGPL v2.1.
2001-07-06  Paul Eggert  <eggert@twinsun.com>

	* manual/argp.texi: Remove ignored LGPL copyright notice; it's
	not appropriate for documentation anyway.
	* manual/libc-texinfo.sh: "Library General Public License" ->
	"Lesser General Public License".

2001-07-06  Andreas Jaeger  <aj@suse.de>

	* All files under GPL/LGPL version 2: Place under LGPL version
	2.1.
2001-07-06 04:58:11 +00:00
Ulrich Drepper
be9cd93a78 Update.
1999-10-10  Ulrich Drepper  <drepper@cygnus.com>

	* sysdeps/powerpc/sysdep.h: New file.
	* sysdeps/unix/powerpc/sysdep.h: New file.
	* sysdeps/unix/sysv/linux/powerpc/sysdep.h: Include
	sysdeps/unix/powerpc/sysdep.h, not sysdeps/unix/sysdep.h.
	* sysdeps/powerpc/fpu/s_copysign.S: Use symbolic names for registers
	instead of bare numbers.
	* sysdeps/powerpc/fpu/s_fabs.S: Likewise.
	* sysdeps/powerpc/fpu/s_fmax.S: Likewise.
	* sysdeps/powerpc/fpu/s_fmin.S: Likewise.

	* sysdeps/hppa/sysdep.h: New file.
1999-10-10 20:36:40 +00:00