| Commit message (Collapse) | Author | Age | Files | Lines |
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This patch removes the arch-specific x86 assembly implementation for
low level locking and consolidate both 64 bits and 32 bits in a
single implementation.
Different than other architectures, x86 lll_trylock, lll_lock, and
lll_unlock implements a single-thread optimization to avoid atomic
operation, using cmpxchgl instead. This patch implements by using
the new single-thread.h definitions in a generic way, although using
the previous semantic.
The lll_cond_trylock, lll_cond_lock, and lll_timedlock just use
atomic operations plus calls to lll_lock_wait*.
For __lll_lock_wait_private and __lll_lock_wait the generic implemtation
there is no indication that assembly implementation is required
performance-wise.
Checked on x86_64-linux-gnu and i686-linux-gnu.
* sysdeps/nptl/lowlevellock.h (__lll_trylock): New macro.
(lll_trylock): Call __lll_trylock.
* sysdeps/unix/sysv/linux/i386/libc-lowlevellock.S: Remove file.
* sysdeps/unix/sysv/linux/i386/lll_timedlock_wait.c: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lll_timedlock_wait.c: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/x86/lowlevellock.h: New file.
* sysdeps/unix/sysv/linux/x86_64/cancellation.S: Include
lowlevellock-futex.h.
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Patch ce7eb0e90315 ("nptl: Cleanup cancellation macros") changed the
join sequence for internal common __pthread_timedjoin_ex to use the
new macro lll_wait_tid. The idea was this macro would issue the
cancellable futex operation depending whether the timeout is used or
not. However if a timeout is used, __lll_timedwait_tid is called and
it is not a cancellable entrypoint.
This patch fixes it by simplifying the code in various ways:
- Instead of adding the cancellation handling on __lll_timedwait_tid,
it moves the generic implementation to pthread_join_common.c (called
now timedwait_tid with some fixes to use the correct type for pid).
- The llvm_wait_tid macro is removed, along with its replication on
x86_64, i686, and sparc arch-specific lowlevellock.h.
- sparc32 __lll_timedwait_tid is also removed, since the code is similar
to generic one.
- x86_64 and i386 provides arch-specific __lll_timedwait_tid which is
also removed since they are similar in functionality to generic C code
and there is no indication it is better than compiler generated code.
New tests, tst-join8 and tst-join9, are provided to check if
pthread_timedjoin_np acts as a cancellation point.
Checked on x86_64-linux-gnu, i686-linux-gnu, sparcv9-linux-gnu, and
aarch64-linux-gnu.
[BZ #24215]
* nptl/Makefile (lpthread-routines): Remove lll_timedwait_tid.
(tests): Add tst-join8 tst-join9.
* nptl/lll_timedwait_tid.c: Remove file.
* sysdeps/sparc/sparc32/lll_timedwait_tid.c: Likewise.
* sysdeps/unix/sysv/linux/i386/lll_timedwait_tid.c: Likewise.
* sysdeps/sysv/linux/x86_64/lll_timedwait_tid.c: Likewise.
* nptl/pthread_join_common.c (timedwait_tid): New function.
(__pthread_timedjoin_ex): Act as cancellation entrypoint is block
is set.
* nptl/tst-join5.c (thread_join): New function.
(tf1, tf2, do_test): Use libsupport and add pthread_timedjoin_np
check.
* nptl/tst-join8.c: New file.
* nptl/tst-join9.c: Likewise.
* sysdeps/nptl/lowlevellock-futex.h (lll_futex_wait_cancel,
lll_futex_timed_wait_cancel): Add generic macros.
* sysdeps/nptl/lowlevellock.h (__lll_timedwait_tid, lll_wait_tid):
Remove definitions.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/sparc/sparc32/lowlevellock.c (__lll_timedwait_tid):
Remove function.
* sysdeps/unix/sysv/linux/i386/lowlevellock.S (__lll_timedwait_tid):
Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/lowlevellock-futex.h
(lll_futex_timed_wait_cancel): New macro.
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In the i386 case, it appears that the sole remaining LIBC_PROBE was
removed in commit a9fe4c5aa8e53ee30f7d0a1c878391d5d6324e6e ("Support
six-argument syscalls from C for 32-bit x86, use generic
lowlevellock-futex.h (bug 18138)."), when
sysdeps/unix/sysv/linux/i386/lowlevellock-futex.h was replaced with
the generic version.
For x86_64, the relevant change is commit
76f71081cd3fe355b9c18d1fc5e87643c788cfac ("Use generic
lowlevellock-futex.h in x86_64 lowlevellock.h."), again by using the
generic version of <lowlevellock-futex.h>.
Tested on i386 and x86_64, with and without --enable-systemtap.
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This patch wraps all uses of *_{enable,disable}_asynccancel and
and *_CANCEL_{ASYNC,RESET} in either already provided macros
(lll_futex_timed_wait_cancel) or creates new ones if the
functionality is not provided (SYSCALL_CANCEL_NCS, lll_futex_wait_cancel,
and lll_futex_timed_wait_cancel).
Also for some generic implementations, the direct call of the macros
are removed since the underlying symbols are suppose to provide
cancellation support.
This is a priliminary patch intended to simplify the work required
for BZ#12683 fix. It is a refactor change, no semantic changes are
expected.
Checked on x86_64-linux-gnu and i686-linux-gnu.
* nptl/pthread_join_common.c (__pthread_timedjoin_ex): Use
lll_wait_tid with timeout.
* nptl/sem_wait.c (__old_sem_wait): Use lll_futex_wait_cancel.
* sysdeps/nptl/aio_misc.h (AIO_MISC_WAIT): Use
futex_reltimed_wait_cancelable for cancelabla mode.
* sysdeps/nptl/gai_misc.h (GAI_MISC_WAIT): Likewise.
* sysdeps/posix/open64.c (__libc_open64): Do not call cancelation
macros.
* sysdeps/posix/sigwait.c (__sigwait): Likewise.
* sysdeps/posix/waitid.c (__sigwait): Likewise.
* sysdeps/unix/sysdep.h (__SYSCALL_CANCEL_CALL,
SYSCALL_CANCEL_NCS): New macro.
* sysdeps/nptl/lowlevellock.h (lll_wait_tid): Add timeout argument.
(lll_timedwait_tid): Remove macro.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_wait_tid):
Likewise.
(lll_timedwait_tid): Likewise.
* sysdeps/unix/sysv/linux/clock_nanosleep.c (__clock_nanosleep):
Use INTERNAL_SYSCALL_CANCEL.
* sysdeps/unix/sysv/linux/futex-internal.h
(futex_reltimed_wait_cancelable): Use LIBC_CANCEL_{ASYNC,RESET}
instead of __pthread_{enable,disable}_asynccancel.
* sysdeps/unix/sysv/linux/lowlevellock-futex.h
(lll_futex_wait_cancel): New macro.
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* 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.
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Glibc build generates header files to define constants from special .sym
files. If a .sym file includes the same header file which it generates,
it leads to circular dependency which may lead to build hang on a
many-core machine. Define GEN_AS_CONST_HEADERS when generating header
files to avoid circular dependency.
<tcb-offsets.h> is needed for i686 and it isn't needed for x86-64 at
least since glibc 2.23.
Tested on i686 and x86-64.
[BZ #22792]
* Makerules ($(common-objpfx)%.h): Pass -DGEN_AS_CONST_HEADERS
to $(CC).
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Include
<tcb-offsets.h> only if GEN_AS_CONST_HEADERS isn't defined.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Don't include
<tcb-offsets.h>.
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* 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.
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This patch consolidates the pthread_join and gnu extensions to avoid
code duplication. The function pthread_join, pthread_tryjoin_np, and
pthread_timedjoin_np are now based on pthread_timedjoin_ex.
It also fixes some inconsistencies on ESRCH, EINVAL, EDEADLK handling
(where each implementation differs from each other) and also on
clenup handler (which now always use a CAS).
Checked on i686-linux-gnu and x86_64-linux-gnu.
* nptl/pthreadP.h (__pthread_timedjoin_np): Define.
* nptl/pthread_join.c (pthread_join): Use __pthread_timedjoin_np.
* nptl/pthread_tryjoin.c (pthread_tryjoin): Likewise.
* nptl/pthread_timedjoin.c (cleanup): Use CAS on argument setting.
(pthread_timedjoin_np): Define internal symbol and common code from
pthread_join.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (__lll_timedwait_tid):
Remove superflous checks.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (__lll_timedwait_tid):
Likewise.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
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lll_robust_unlock on i386 and x86_64 first sets the futex word to
FUTEX_WAITERS|0 before calling __lll_unlock_wake, which will set the
futex word to 0. If the thread is killed between these steps, then the
futex word will be FUTEX_WAITERS|0, and the kernel (at least current
upstream) will not set it to FUTEX_OWNER_DIED|FUTEX_WAITERS because 0 is
not equal to the TID of the crashed thread.
The lll_robust_lock assembly code on i386 and x86_64 is not prepared to
deal with this case because the fastpath tries to only CAS 0 to TID and
not FUTEX_WAITERS|0 to TID; the slowpath simply waits until it can CAS 0
to TID or the futex_word has the FUTEX_OWNER_DIED bit set.
This issue is fixed by removing the custom x86 assembly code and using
the generic C code instead. However, instead of adding more duplicate
code to the custom x86 lowlevellock.h, the code of the lll_robust* functions
is inlined into the single call sites that exist for each of these functions
in the pthread_mutex_* functions. The robust mutex paths in the latter
have been slightly reorganized to make them simpler.
This patch is meant to be easy to backport, so C11-style atomics are not
used.
[BZ #20985]
* nptl/Makefile: Adapt.
* nptl/pthread_mutex_cond_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
* nptl/pthread_mutex_lock.c (LLL_ROBUST_MUTEX_LOCK): Remove.
(LLL_ROBUST_MUTEX_LOCK_MODIFIER): New.
(__pthread_mutex_lock_full): Inline lll_robust* functions and adapt.
* nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Inline
lll_robust* functions and adapt.
* nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock_full): Likewise.
* sysdeps/nptl/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h (lll_robust_lock,
lll_robust_cond_lock, lll_robust_timedlock, lll_robust_unlock): Remove.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h (__lll_robust_lock_wait,
__lll_robust_lock, lll_robust_cond_lock, __lll_robust_timedlock_wait,
__lll_robust_timedlock, __lll_robust_unlock): Remove.
* nptl/lowlevelrobustlock.c: Remove file.
* nptl/lowlevelrobustlock.sym: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevelrobustlock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevelrobustlock.S: Likewise.
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Adding this parameter will give architectures more freedom in
how they choose to update this variable. This change has no
effect on architectures which choose not to use it.
* nptl/pthread_mutex_unlock.c(lll_unlock_elision):
Add elision adapt_count parameter to list of arguments.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h
(lll_unlock_elision): Update with new parameter list
* sysdeps/unix/sysv/linux/s390/lowlevellock.h
(lll_unlock_elision): Likewise
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h
(lll_unlock_elision): Likewise
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This patch combines BUSY_WAIT_NOP and atomic_delay into a new
atomic_spin_nop function and adjusts all clients. The new function is
put into atomic.h because what is best done in a spin loop is
architecture-specific, and atomics must be used for spinning. The
function name is meant to tell users that this has no effect on
synchronization semantics but is a performance aid for spinning.
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Replace with !IS_IN (libc). This completes the transition from
the IS_IN/NOT_IN macros to the IN_MODULE macro set.
The generated code is unchanged on x86_64.
* stdlib/isomac.c (fmt): Replace NOT_IN_libc with IN_MODULE.
(get_null_defines): Adjust.
* sunrpc/Makefile: Adjust comment.
* Makerules (CPPFLAGS-nonlib): Remove NOT_IN_libc.
* elf/Makefile (CPPFLAGS-sotruss-lib): Likewise.
(CFLAGS-interp.c): Likewise.
(CFLAGS-ldconfig.c): Likewise.
(CPPFLAGS-.os): Likewise.
* elf/rtld-Rules (rtld-CPPFLAGS): Likewise.
* extra-lib.mk (CPPFLAGS-$(lib)): Likewise.
* extra-modules.mk (extra-modules.mk): Likewise.
* iconv/Makefile (CPPFLAGS-iconvprogs): Likewise.
* locale/Makefile (CPPFLAGS-locale_programs): Likewise.
* malloc/Makefile (CPPFLAGS-memusagestat): Likewise.
* nscd/Makefile (CPPFLAGS-nscd): Likewise.
* nss/Makefile (CPPFLAGS-nss_test1): Likewise.
* stdlib/Makefile (CFLAGS-tst-putenvmod.c): Likewise.
* sysdeps/gnu/Makefile ($(objpfx)errlist-compat.c): Likewise.
* sysdeps/unix/sysv/linux/Makefile (CPPFLAGS-lddlibc4): Likewise.
* iconvdata/Makefile (CPPFLAGS): Likewise.
(cpp-srcs-left): Add libof for all iconvdata routines.
* bits/stdio-lock.h: Replace NOT_IN_libc with IS_IN.
* include/assert.h: Likewise.
* include/ctype.h: Likewise.
* include/errno.h: Likewise.
* include/libc-symbols.h: Likewise.
* include/math.h: Likewise.
* include/netdb.h: Likewise.
* include/resolv.h: Likewise.
* include/stdio.h: Likewise.
* include/stdlib.h: Likewise.
* include/string.h: Likewise.
* include/sys/stat.h: Likewise.
* include/wctype.h: Likewise.
* intl/l10nflist.c: Likewise.
* libidn/idn-stub.c: Likewise.
* libio/libioP.h: Likewise.
* nptl/libc_multiple_threads.c: Likewise.
* nptl/pthreadP.h: Likewise.
* posix/regex_internal.h: Likewise.
* resolv/res_hconf.c: Likewise.
* sysdeps/arm/armv7/multiarch/memcpy.S: Likewise.
* sysdeps/arm/memmove.S: Likewise.
* sysdeps/arm/sysdep.h: Likewise.
* sysdeps/generic/_itoa.h: Likewise.
* sysdeps/generic/symbol-hacks.h: Likewise.
* sysdeps/gnu/errlist.awk: Likewise.
* sysdeps/gnu/errlist.c: Likewise.
* sysdeps/i386/i586/memcpy.S: Likewise.
* sysdeps/i386/i586/memset.S: Likewise.
* sysdeps/i386/i686/memcpy.S: Likewise.
* sysdeps/i386/i686/memmove.S: Likewise.
* sysdeps/i386/i686/mempcpy.S: Likewise.
* sysdeps/i386/i686/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/bcopy.S: Likewise.
* sysdeps/i386/i686/multiarch/bzero.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr-sse2-bsf.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/memchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp-sse4.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/memcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy-ssse3-rep.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/memcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove.S: Likewise.
* sysdeps/i386/i686/multiarch/memmove_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr-c.c: Likewise.
* sysdeps/i386/i686/multiarch/memrchr-sse2-bsf.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/memrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/memset-sse2-rep.S: Likewise.
* sysdeps/i386/i686/multiarch/memset-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/memset.S: Likewise.
* sysdeps/i386/i686/multiarch/memset_chk.S: Likewise.
* sysdeps/i386/i686/multiarch/rawmemchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/strcat.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr-sse2-bsf.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/strchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp-sse4.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/strcmp.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/strcpy.S: Likewise.
* sysdeps/i386/i686/multiarch/strcspn.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen-sse2-bsf.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/strlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strnlen.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr-sse2-bsf.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/strrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/strspn.S: Likewise.
* sysdeps/i386/i686/multiarch/wcschr-c.c: Likewise.
* sysdeps/i386/i686/multiarch/wcschr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/wcschr.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscmp.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy-c.c: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy-ssse3.S: Likewise.
* sysdeps/i386/i686/multiarch/wcscpy.S: Likewise.
* sysdeps/i386/i686/multiarch/wcslen-c.c: Likewise.
* sysdeps/i386/i686/multiarch/wcslen-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/wcslen.S: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr-c.c: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr-sse2.S: Likewise.
* sysdeps/i386/i686/multiarch/wcsrchr.S: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp-c.c: Likewise.
* sysdeps/i386/i686/multiarch/wmemcmp.S: Likewise.
* sysdeps/ia64/fpu/libm-symbols.h: Likewise.
* sysdeps/nptl/bits/libc-lock.h: Likewise.
* sysdeps/nptl/bits/libc-lockP.h: Likewise.
* sysdeps/nptl/bits/stdio-lock.h: Likewise.
* sysdeps/posix/closedir.c: Likewise.
* sysdeps/posix/opendir.c: Likewise.
* sysdeps/posix/readdir.c: Likewise.
* sysdeps/posix/rewinddir.c: Likewise.
* sysdeps/powerpc/novmx-sigjmp.c: Likewise.
* sysdeps/powerpc/powerpc32/__longjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/bsd-_setjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/__longjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/setjmp.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/bzero.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memchr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memcmp-ppc32.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memcmp.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memcpy-ppc32.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memcpy.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memmove.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/mempcpy.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr-ppc32.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memrchr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memset-ppc32.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/memset.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/rawmemchr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strcasecmp_l.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strchr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strchrnul.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strlen-ppc32.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strlen.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncase.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncase_l.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp-ppc32.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strncmp.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/strnlen.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/wordcopy.c: Likewise.
* sysdeps/powerpc/powerpc32/power6/memset.S: Likewise.
* sysdeps/powerpc/powerpc32/setjmp.S: Likewise.
* sysdeps/powerpc/powerpc64/__longjmp.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/bzero.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcmp-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcmp.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memmove-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memmove.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/mempcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memrchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/memset.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/rawmemchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/stpcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/stpncpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcasecmp.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcat.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strchrnul.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcmp-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcmp.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strcspn.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strlen-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strlen.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncase.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncase_l.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncat.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncmp-ppc64.S: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncmp.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncpy-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strncpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strnlen.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strpbrk.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strrchr-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strrchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strspn-ppc64.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/strspn.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/wcschr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise.
* sysdeps/powerpc/powerpc64/multiarch/wordcopy.c: Likewise.
* sysdeps/powerpc/powerpc64/setjmp.S: Likewise.
* sysdeps/s390/s390-32/multiarch/ifunc-resolve.c: Likewise.
* sysdeps/s390/s390-32/multiarch/memcmp.S: Likewise.
* sysdeps/s390/s390-32/multiarch/memcpy.S: Likewise.
* sysdeps/s390/s390-32/multiarch/memset.S: Likewise.
* sysdeps/s390/s390-64/multiarch/ifunc-resolve.c: Likewise.
* sysdeps/s390/s390-64/multiarch/memcmp.S: Likewise.
* sysdeps/s390/s390-64/multiarch/memcpy.S: Likewise.
* sysdeps/s390/s390-64/multiarch/memset.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara2.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-niagara4.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memcpy.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memset-niagara1.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memset-niagara4.S: Likewise.
* sysdeps/sparc/sparc64/multiarch/memset.S: Likewise.
* sysdeps/unix/alpha/sysdep.S: Likewise.
* sysdeps/unix/alpha/sysdep.h: Likewise.
* sysdeps/unix/make-syscalls.sh: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/alpha/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/arm/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/arm/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/getpid.c: Likewise.
* sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/hppa/nptl/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/i386/i486/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/microblaze/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/mips/mips64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/mips/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/not-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/longjmp_chk.c: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sh/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sh/vfork.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/brk.S: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/tile/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/tile/waitpid.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep-cancel.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/wordsize-32/symbol-hacks.h: Likewise.
* sysdeps/x86_64/memcpy.S: Likewise.
* sysdeps/x86_64/memmove.c: Likewise.
* sysdeps/x86_64/memset.S: Likewise.
* sysdeps/x86_64/multiarch/init-arch.h: Likewise.
* sysdeps/x86_64/multiarch/memcmp-sse4.S: Likewise.
* sysdeps/x86_64/multiarch/memcmp-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/memcmp.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy-avx-unaligned.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy-ssse3-back.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy.S: Likewise.
* sysdeps/x86_64/multiarch/memcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memmove.c: Likewise.
* sysdeps/x86_64/multiarch/mempcpy.S: Likewise.
* sysdeps/x86_64/multiarch/mempcpy_chk.S: Likewise.
* sysdeps/x86_64/multiarch/memset-avx2.S: Likewise.
* sysdeps/x86_64/multiarch/memset.S: Likewise.
* sysdeps/x86_64/multiarch/memset_chk.S: Likewise.
* sysdeps/x86_64/multiarch/strcat-sse2-unaligned.S: Likewise.
* sysdeps/x86_64/multiarch/strcat-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/strcat.S: Likewise.
* sysdeps/x86_64/multiarch/strchr-sse2-no-bsf.S: Likewise.
* sysdeps/x86_64/multiarch/strchr.S: Likewise.
* sysdeps/x86_64/multiarch/strcmp-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/strcmp.S: Likewise.
* sysdeps/x86_64/multiarch/strcpy-sse2-unaligned.S: Likewise.
* sysdeps/x86_64/multiarch/strcpy-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/strcpy.S: Likewise.
* sysdeps/x86_64/multiarch/strcspn.S: Likewise.
* sysdeps/x86_64/multiarch/strspn.S: Likewise.
* sysdeps/x86_64/multiarch/wcscpy-c.c: Likewise.
* sysdeps/x86_64/multiarch/wcscpy-ssse3.S: Likewise.
* sysdeps/x86_64/multiarch/wcscpy.S: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp-c.c: Likewise.
* sysdeps/x86_64/multiarch/wmemcmp.S: Likewise.
* sysdeps/x86_64/strcmp.S: Likewise.
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Replace with IS_IN (rtld). Generated code is unchanged on
x86_64.
* elf/Makefile (CPPFLAGS-.os): Remove IS_IN_rtld.
* elf/dl-open.c: Use IS_IN (rtld) instead if IS_IN_rtld.
* elf/rtld-Rules: Likewise.
* elf/setup-vdso.h: Likewise.
* include/assert.h: Likewise.
* include/bits/stdlib-float.h: Likewise.
* include/errno.h: Likewise.
* include/sys/stat.h: Likewise.
* include/unistd.h: Likewise.
* sysdeps/aarch64/setjmp.S: Likewise.
* sysdeps/alpha/setjmp.S: Likewise.
* sysdeps/arm/__longjmp.S: Likewise.
* sysdeps/arm/aeabi_unwind_cpp_pr1.c: Likewise.
* sysdeps/arm/setjmp.S: Likewise.
* sysdeps/arm/sysdep.h: Likewise.
* sysdeps/generic/_itoa.h: Likewise.
* sysdeps/generic/dl-sysdep.h: Likewise.
* sysdeps/generic/ldsodefs.h: Likewise.
* sysdeps/i386/dl-tls.h: Likewise.
* sysdeps/i386/setjmp.S: Likewise.
* sysdeps/m68k/setjmp.c: Likewise.
* sysdeps/mach/hurd/dl-execstack.c: Likewise.
* sysdeps/mach/hurd/opendir.c: Likewise.
* sysdeps/posix/getcwd.c: Likewise.
* sysdeps/posix/opendir.c: Likewise.
* sysdeps/posix/profil.c: Likewise.
* sysdeps/powerpc/dl-procinfo.h: Likewise.
* sysdeps/powerpc/powerpc32/fpu/__longjmp-common.S: Likewise.
* sysdeps/powerpc/powerpc32/fpu/setjmp-common.S: Likewise.
* sysdeps/powerpc/powerpc32/power4/multiarch/init-arch.h: Likewise.
* sysdeps/powerpc/powerpc32/setjmp-common.S: Likewise.
* sysdeps/powerpc/powerpc64/__longjmp-common.S: Likewise.
* sysdeps/powerpc/powerpc64/setjmp-common.S: Likewise.
* sysdeps/s390/dl-tls.h: Likewise.
* sysdeps/s390/s390-32/setjmp.S: Likewise.
* sysdeps/s390/s390-64/setjmp.S: Likewise.
* sysdeps/sh/sh3/setjmp.S: Likewise.
* sysdeps/sh/sh4/setjmp.S: Likewise.
* sysdeps/unix/alpha/sysdep.h: Likewise.
* sysdeps/unix/arm/sysdep.S: Likewise.
* sysdeps/unix/i386/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/aarch64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/getcwd.c: Likewise.
* sysdeps/unix/sysv/linux/hppa/nptl/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/ia64/setjmp.S: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/bits/m68k-vdso.h: Likewise.
* sysdeps/unix/sysv/linux/m68k/m68k-helpers.S: Likewise.
* sysdeps/unix/sysv/linux/microblaze/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sh/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/tile/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/tile/sysdep.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/x86_64/sysdep.S: Likewise.
* sysdeps/x86_64/setjmp.S: Likewise.
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