($(all-subdirs-targets)): Use it in place of -C option.
* Rules: Use $(..) instead of ../ if it's already defined.
* Makeconfig (subdir-srcdirs): New variable.
* csu/Makefile (all-Banner-files): Use it.
* configure.in (--enable-add-ons): Set to "yes" by default.
Handle absolute add-on directory names when looking for configure
fragments. Also look for sysdeps/*/preconfigure fragments in add-ons.
Require add-on configure to set $libc_add_on_canonical, use
that in $add_ons_sfx. Substitute add_on_subdirs with computed list
of subdir names each add-on configure set in libc_add_on_subdirs.
* configure: Regenerated.
* Makefile (%/preconfigure: %/preconfigure.in): New pattern rule.
* config.make.in (add-on-subdirs): New substituted variable.
* Makeconfig (all-subdirs): Include $(add-on-subdirs).
Remove $(add-ons), $(sysdep-subdirs).
Don't filter out $(sysdep-inhibit-subdirs).
($(common-objpfx)sysd-dirs): Target removed. Don't include it.
($(common-objpfx)sysd-sorted): Rewritten to feed Depend and Subdirs
files together to gen-sorted.awk, and $(subdirs) via -v.
(subdirs): Remove magic reordering for mach and hurd.
* scripts/gen-sorted.awk: Use subdirs from command line.
Process Subdirs and Depend files directly.
Let Subdirs files use "first dir" and "inhibit dir".
Always move elf to the end of the list.
* hurd/Depend: New file.
* sysdeps/mach/Subdirs: Use "first mach".
* Makefile (dist-separate): Remove linuxthreads.
(dist-separate-linuxthreads): Variable removed.
(glibc-%.tar rule): Use $(sysdeps-add-ons).
* Makerules ($(common-objpfx)Versions.v.i): Use $(subdirs),
not $(all-subdirs).
(sysdep-makefiles): Use $(sysdirs).
(sysdirs): Remove export.
($(+sysdir_pfx)sysd-rules): Handle absolute directory names in
$(config-sysdirs).
(+sysdir_pfx): Variable removed.
(sysd-rules): Use $(common-objpfx) in place of it.
(sysdirs): Variable moved to ...
* Makeconfig (sysdirs): ... here.
Handle absolute directory names in $(config-sysdirs).
(full_config_sysdirs): Variable removed.
* csu/Makefile: Use $(sysdirs) in vpath directive.
* math/Makefile (ulps-file): Use $(sysdirs).
* sysdeps/gnu/Makefile (errlist-c): Likewise.
($(objpfx)errlist-compat.c): Likewise.
* Makeconfig (all-Subdirs-files): Likewise.
($(common-objpfx)config.status): Likewise.
* configure.in (sysnames): Handle absolute add-on directory names.
(sysdeps_add_ons): New variable, AC_SUBST it.
Compute which add-ons contributed sysdeps directories.
* configure: Regenerated.
* config.make.in (sysdeps-add-ons): New substituted variable.
* Makerules (+sysdep_dirs, +sysdep-includes): Variables moved ...
* Makeconfig: ... to here.
(+sysdep_dirs): Append $(sysdeps-add-ons) here.
(+includes): Remove $(objpfx) include, already in $(+sysdep_dirs).
Remove $(includes).
(sysdep-makeconfigs): Use $(+sysdep_dirs).
($(common-objpfx)shlib-versions.v.i): Likewise.
* Makeconfig: Remove hair to set Makeconfig-add-on.
* sysdeps/unix/Makefile (sysdirs): Remove export.
(asm_CPP): Variable removed.
($(common-objpfx)sysd-syscalls): Pass them directly for the script.
* sysdeps/posix/Makefile: New file.
* Makerules (L_tmpnam, TMP_MAX, L_ctermid, L_cuserid): Set non-posix
values here with ?=.
* stdlib/gen-mpn-copy: File removed.
* stdlib/Makefile (distribute): Remove it.
* configure.in: Don't grok --with-gmp.
* configure: Regenerated.
* configure.in (libc_cv_idn): Don't check it; libidn/configure does it.
* configure: Regenerated.
* bare: Directory removed, saved in ports repository.
__openat64_not_cancel): Remove prototypes.
(__openat_nocancel, __openat64_nocancel): New prototypes or defines.
(openat_not_cancel, openat_not_cancel_3, openat64_not_cancel,
openat64_not_cancel_3): Use them.
Don't give the union a name because it changes the mangled name.
Instead name the struct for __data.
* sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
* pthread_create.c (start_thread): Adjust robust mutex free loop.
* descr.h (ENQUEUE_MUTEX, DEQUEUE_MUTEX): Adjust.
and ENOTRECOVERABLE if not already defined.
* sysdeps/unix/sysv/linux/alpha/bits/errno.h: Likewise.
2005-12-27 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/alpha/Versions: Add new errlist-compat
entry for up to 138 errnos.
2004-12-15 Jakub Jelinek <jakub@redhat.com>
* nis/nis_domain_of_r.c (nis_domain_of_r): Use libnsl_hidden_def,
not libnsl_hidden_proto.
* sysdeps/unix/sysv/linux/s390/s390-32/clone.S (__clone): Add support
for NPTL where the PID is stored at userlevel and needs to be reset
when CLONE_THREAD is not used.
* sysdeps/unix/sysv/linux/s390/s390-64/clone.S (__clone): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone): Save
and restore r2 around call to fn.
* posix/tst-getaddrinfo2.c: Include stdlib.h and string.h.
(do_test): Use %p instead of 0x%08X to print a pointer.
* malloc/malloc.c: Include stdio-common/_itoa.h.
Update.
* misc/syslog.c (vsyslog): Fix copying of PID in case of
out-of-memory situation. [BZ #365].
* sysdeps/alpha/fpu/bits/mathinline.h: Use __NTH instead of
__THROW in inline function definitions.
2004-07-05 Ulrich Drepper <drepper@redhat.com>
* elf/dl-init.c: Don't define and use _dl_starting_up if
HAVE_INLINED_SYSCALLS is defined and the variable is not used.
* elf/dl-support.c: Likewise.
* elf/rtld.c: Likewise.
* elf/dl-misc.c (_dl_debug_vdprintf): Use writev syscall directly
if HAVE_INLINED_SYSCALLS is defined.
* sysdeps/powerpc/powerpc64/dl-machine.h: Don't rest _dl_starting_up
here.
* sysdeps/powerpc/powerpc32/dl-start.S: Likewise.
* sysdeps/unix/sysv/linux/configure.in: Define HAVE_INLINED_SYSCALLS.
* config.h.in: Add entry for HAVE_INLINED_SYSCALLS.
* sysdeps/posix/profil.c: If compiled for ld.so, omit code which
is needed to stop profiling.
* elf/dl-open.c (dl_open_worker): If a newly opened object is to be
profile make sure it cannot be unloaded.
* sysdeps/unix/sysv/linux/dl-origin.c: Inline readlink syscall.
* sysdeps/unix/sysv/linux/fcntl.c: If compiled without cancellation
support, make sure the helper function is inlined.
* sysdeps/unix/sysv/linux/pread.c: Likewise.
* sysdeps/unix/sysv/linux/pwrite.c: Likewise.
* sysdeps/unix/sysv/linux/i386/fcntl.c: Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/fcntl.c: Likewise.
Update.
2004-05-18 Petter Reinholdtsen <pere@hungry.com>
* locales/sl_SI [LC_TIME]: Correct d_fmt date format from
'22.06.2003' to '22. 06. 2003'. Change requested from Aleks
Reinhardt, and approved by the locale author Borka
Jerman-Blazic. [BZ #163]
2004-03-11 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/s390/s390-64/vfork.S (__vfork): Use jgnl
instead of jnl instruction to jump to SYSCALL_ERROR_LABEL.
* sysdeps/unix/sysv/linux/s390/s390-64/pt-vfork.S (__vfork): Likewise.
2004-03-11 Jakub Jelinek <jakub@redhat.com>
* forward.c (__pthread_cond_broadcast_2_0,
__pthread_cond_destroy_2_0, __pthread_cond_init_2_0,
__pthread_cond_signal_2_0, __pthread_cond_wait_2_0,
__pthread_cond_timedwait_2_0): Use return 0 as defaction instead of 0.
2004-03-10 Jakub Jelinek <jakub@redhat.com>
* include/libc-symbols.h [__ASSEMBLY__] (compat_text_section,
compat_data_section): Define.
* sysdeps/unix/sysv/linux/alpha/adjtime.c (ADJTIME): Add
attribute_compat_text_section.
* sysdeps/unix/sysv/linux/alpha/wordexp.c (__old_wordexp): Likewise.
* sysdeps/unix/sysv/linux/alpha/oldglob.c (__old_glob,
__old_globfree): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/chown.c (__chown_is_lchown):
Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/posix_fadvise64.c
(__posix_fadvise64_l32): Likewise.
* sysdeps/unix/sysv/linux/msgctl.c (__old_msgctl): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/posix_fadvise64.c
(__posix_fadvise64_l32): Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/semctl.c (__old_semctl):
Likewise.
* sysdeps/unix/sysv/linux/semctl.c (__old_semctl): Likewise.
* sysdeps/unix/sysv/linux/posix_fadvise64.c (__posix_fadvise64_l32):
Likewise.
* sysdeps/unix/sysv/linux/shmctl.c (__old_shmctl): Likewise.
* hurd/compat-20.c (_hurd_proc_init_compat_20): Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext.S
(__swapcontext, __novec_swapcontext): Use END instead of PSEUDO_END.
(__novec_swapcontext, __swapcontext_stub): Add compat_text_section.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/makecontext.S
(__makecontext_stub): Likewise.
(__novec_makecontext): Likewise. Fix name in END () to match
function name.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext.S
(__setcontext): Use END instead of PSEUDO_END.
(__novec_setcontext): Add compat_text_section. Use END instead of
PSEUDO_END, fix the name in END () to match function name.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext.S
(__getcontext, __novec_getcontext): Use END instead of PSEUDO_END.
(__novec_getcontext, __getcontext_stub): Add compat_text_section.
2004-03-10 Kaz Kojima <kkojima@rr.iij4u.or.jp>
* sysdeps/sh/dl-machine.h: Don't use GL macro if not appropriate.
(COPY_UNALIGNED_WORD): Remove cast used as lvalue.
2004-03-10 Ulrich Drepper <drepper@redhat.com>
* sysdeps/i386/dl-procinfo.h (HWCAP_IMPORTANT): Remove mmx, add sse2.
2003-09-08 Jakub Jelinek <jakub@redhat.com>
* sysdeps/generic/bits/types.h (__quad_t): Make long int if 64-bit.
(__u_quad_t): Make unsigned long int if 64-bit.
(__SQUAD_TYPE): Make long int if 64-bit.
(__UQUAD_TYPE): Make unsigned long int if 64-bit.
* sysdeps/unix/sysv/linux/s390/bits/typesizes.h: Remove.
2003-09-08 Ulrich Drepper <drepper@redhat.com>
* Makefile (tests): Run check-c++-types.sh if possible.
* scripts/check-c++-types.h: New file.
* scripts/data/c++-ctypes-i386-linux-gnu.data: New file.
contiguous case. Bug report from Prem Gopalan <prem@mazunetworks.com>.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep-cancel.h (PSEUDO): Also
defined symbol for entry point to avoid cancellation.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h (PSEUDO):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h (PSEUDO):
Likewise.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h (PSEUDO):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc32/sysdep-cancel.h (PSEUDO):
Likewise.
* sysdeps/unix/sysv/linux/sparc/sparc64/sysdep-cancel.h (PSEUDO):
Likewise.
* sysdeps/unix/sysv/linux/i386/not-cancel.h (__open_nocancel,
__close_nocancel, __read_nocancel, __write_nocancel,
__waitpid_nocancel): Add attribute_hidden. If not in libc.so,
libpthread.so or librt.so, define to corresponding function
without _nocancel suffix.
* sysdeps/unix/sysv/linux/s390/not-cancel.h: New file.
* sysdeps/unix/sysv/linux/powerpc/not-cancel.h: New file.
* sysdeps/unix/sysv/linux/sparc/not-cancel.h: New file.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* dlfcn/dlerror.c (once): New.
(dlerror): Call __libc_once.
(_dlerror_run): Remove once.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/ia64/bits/sigcontext.h (struct sigcontext):
Sync with 2.5.7 and 2.5.73 kernel changes.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* dlfcn/eval.c (funcall): Add noinline attribute to shut up warnings.
* elf/rtld.c (dl_main): Cast ElfW(Addr) arguments with %Zx/%Zd
formats to size_t.
* elf/dl-lookup.c (_dl_debug_bindings): Likewise.
* elf/tst-tls6.c (do_test): Use %zd format for l_tls_modid.
* elf/tst-tls8.c (do_test): Use %zd format for modid1 and modid2.
* gmon/tst-sprofil.c (main): Add parens to shut up warning.
* iconv/tst-iconv3.c (main): Use %td instead of %zd for pointer
difference argument.
* stdio-common/tst-wc-printf.c (main): Cast arguments with %C
format to wint_t.
* stdlib/tst-limits.c (main): For WORD_BIT and LONG_BIT, use
%d format and cast expected value to int.
* sysdeps/generic/libc-start.c (STATIC): Add
__attribute__((always_inline) if LIBC_START_MAIN is already defined.
* sysdeps/powerpc/fpu/w_sqrt.c (a_nan, a_inf): Change from uint32_t
to ieee_float_shape_type.
(__sqrt): Avoid type punning.
* sysdeps/powerpc/fpu/w_sqrtf.c (a_nan, a_inf): Change from uint32_t
to ieee_float_shape_type.
(__sqrtf): Avoid type punning.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_rela): Don't define
refsym if in dl-conflict.c.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_rela): Likewise.
* sysdeps/unix/sysv/linux/i386/semctl.c (union semun): Add __old_buf.
(__new_semctl): Shut up warning.
* sysdeps/unix/sysv/linux/semctl.c (union semun): Add __old_buf.
(__new_semctl): Shut up warning.
* sysdeps/unix/sysv/linux/shmctl.c (__new_shmctl): Wrap long lines.
Change old into union of __old_shmid_ds and __old_shminfo structs.
Adjust all users.
* wcsmbs/wcsmbs-tst1.c (main): Cast arguments with %C format to wint_t.
2003-07-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/utimes.c (__utimes): Fix actime and
modtime computation.
* sysdeps/unix/sysv/linux/futimes.c (__futimes): Likewise.
* sysdeps/posix/utimes.c (__utimes): Likewise.
* sysdeps/unix/sysv/linux/sigwait.c: Include string.h.
* sysdeps/unix/sysv/linux/sigwaitinfo.c: Likewise.
* sysdeps/unix/sysv/linux/sigtimedwait.c: Likewise.
* sysdeps/unix/sysv/linux/sleep.c (__sleep): Cast value to unsigned
int before assigning to max to avoid warnings.
2003-07-11 Jakub Jelinek <jakub@redhat.com>
2003-06-15 Ulrich Drepper <drepper@redhat.com>
Fix cancellation point handling wrt exception based cleanup.
* io/Makefile: Compile fcntl.c, poll.c, and lockf.c with exceptions.
* misc/Makefile: Compile pselect.c, readv.c, writev.c, and usleep.c
with exceptions.
* posix/Makefile: Compile pread.c, pread64.c, pwrite.c, pwrite64.c,
sleep.c, wait.c, waitid.c, and waitpid.c with exceptions.
* rt/Makefile: Compile aio_suspend.c and clock_nanosleep.c with
exceptions.
* signal/Makefile: Compile sigpause.c, sigsuspend.c, sigtimedwait.c,
sigwait.c, and sigwaitinfo.c with exceptions.
* stdlib/Makefile: Compile system.c with exceptions.
* sysvipc/Makefile: Compile msgrcv.c and msgsnd.c with exceptions.
* termios/Makefile: Compile tcdrain.c with exceptions.
* sysdeps/generic/lockf.c: Add comment explaining the cancellation
situation.
* sysdeps/generic/pselect.c: Likewise.
* sysdeps/posix/sigpause.c: Likewise.
* sysdeps/posix/system.c: Likewise.
* sysdeps/posix/waitid.c: Likewise.
* sysdeps/unix/sysv/linux/sleep.c: Likewise.
* sysdeps/unix/sysv/linux/usleep.c: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep.h: Major rewrite of
INTERNAL_SYSCALL to not use push inside asm statement so that
unwind info is correct around the syscall.
* sysdeps/unix/clock_nanosleep.c: Add cancellation support.
* sysdeps/unix/sysv/linux/clock_nanosleep.c: Likewise.
2003-05-02 Ulrich Drepper <drepper@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h
(pthread_condattr_t): Size is only an int, don't use long for
alignment.
(pthread_mutexattr_t): Likewise.
(pthread_barrierattr_t): Likewise.
* sysdeps/unix/sysv/linux/ia64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/x86_64/bits/pthreadtypes.h: Likewise.
* sysdeps/unix/sysv/linux/s390/bits/pthreadtypes.h: Likewise.
2003-03-25 Ulrich Drepper <drepper@redhat.com>
* csu/tst-atomic.c: Adjust tests to what atomic_add_negative and
atomic_add_zero were supposed to do.
* include/atomic.h: Adjust atomic_add_negative and atomic_add_zero
to x86 behavior.
* sysdeps/generic/bits/typesizes.h (__TIMER_T_TYPE): Define as void*.
This matches the new timer implementation.
* sysdeps/unix/sysv/linux/bits/siginfo.h (struct siginfo): Adjust
timer info for what the kernel provides these days.
(struct sigevent): Add _tid field.
Define SIGEV_THREAD_ID.
* Versions.def (librt): Add GLIBC_2.3.3.
* abilist/libpthread.abilist: Update for nptl.
int for variable OLDVAL and correct inline assembler contraint.
* sysdeps/s390/pthread_spin_trylock.c (pthread_spin_trylock): Use
type int for variable OLD.
* sysdeps/s390/tls.h (TLS_MULTIPLE_THREADS_IN_TCB): Define it
only for s390-32.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
(SINGLE_THREAD_P): Use global variable __local_multiple_threads
instead of multiple_threads field in the TCB.
* sysdeps/pthread/pthread_spin_init.c: New file.
* sysdeps/pthread/pthread_spin_unlock.c: New file.
* sysdeps/powerpc/Makefile: New file.
* sysdeps/powerpc/pthread_spin_lock.c: New file.
* sysdeps/powerpc/pthread_spin_trylock.c: New file.
* sysdeps/powerpc/pthreaddef.h: New file.
* sysdeps/powerpc/tcb-offsets.sym: New file.
* sysdeps/powerpc/td_ta_map_lwp2thr.c: New file.
* sysdeps/powerpc/tls.h: New file.
* sysdeps/powerpc/bits/atomic.h: New file.
* sysdeps/unix/sysv/linux/libc-lowlevelmutex.c: New file.
* sysdeps/unix/sysv/linux/libc-lowlevellock.c: New file.
* sysdeps/unix/sysv/linux/lowlevellock.c: New file.
* sysdeps/unix/sysv/linux/lowlevelmutex.c: New file.
* sysdeps/unix/sysv/linux/sem_post.c: New file.
* sysdeps/unix/sysv/linux/sem_timedwait.c: New file.
* sysdeps/unix/sysv/linux/sem_trywait.c: New file.
* sysdeps/unix/sysv/linux/sem_wait.c: New file.
* sysdeps/unix/sysv/linux/powerpc/Makefile: New file.
* sysdeps/unix/sysv/linux/powerpc/createthread.c: New file.
* sysdeps/unix/sysv/linux/powerpc/fork.c: New file.
* sysdeps/unix/sysv/linux/powerpc/lowlevellock.h: New file.
* sysdeps/unix/sysv/linux/powerpc/pt-vfork.S: New file.
* sysdeps/unix/sysv/linux/powerpc/pthread_once.c: New file.
* sysdeps/unix/sysv/linux/powerpc/bits/pthreadtypes.h: New file.
* sysdeps/unix/sysv/linux/powerpc/bits/semaphore.h: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc32/sysdep-cancel.h: New file.
* sysdeps/unix/sysv/linux/powerpc/powerpc64/sysdep-cancel.h: New file.
* sysdeps/unix/sysv/linux/ia64/lowlevellock.c: Use __gettimeofday,
not gettimeofday.
* sysdeps/unix/sysv/linux/ia64/lowlevelmutex.c: Likewise.
* sysdeps/unix/sysv/linux/ia64/sem_timedwait.c: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevellock.c: Likewise.
* sysdeps/unix/sysv/linux/s390/lowlevelmutex.c: Likewise.
* sysdeps/unix/sysv/linux/s390/sem_timedwait.c: Likewise.
* descr.h (struct pthread): Move the union out of [!TLS_DTV_AT_TP], so
we always define the padding space.
[!TLS_DTV_AT_TP]: Give tcbhead_t field a name, `header', since GCC
stopped supporting its own extensions fully.
[TLS_MULTIPLE_THREADS_IN_TCB]: Put `multiple_threads' inside a wrapper
struct also called `header', so `header.multiple_threads' is the field
name to use on all machines.
* allocatestack.c (allocate_stack): Use `header.' prefix.
* sysdeps/pthread/createthread.c (create_thread): Likewise.
* pthread_create.c (__pthread_create_2_1): Likewise.
* sysdeps/i386/tls.h (INSTALL_NEW_DTV, THREAD_DTV): Likewise.
(THREAD_SELF): Likewise.
* sysdeps/x86_64/tls.h: Likewise.
* sysdeps/unix/sysv/linux/i386/sysdep-cancel.h
(SINGLE_THREAD_P): Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep-cancel.h
(SINGLE_THREAD_P): Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep-cancel.h
(SINGLE_THREAD_P): Likewise.
* sysdeps/unix/sysv/linux/ia64/system.c: New file.
* sysdeps/unix/sysv/linux/kernel-features.h
(__ASSUME_CLONE_THREAD_FLAGS): Define for IA-64 and s390* with
kernel >= 2.5.64.
2003-03-11 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S: Don't clobber R7.
Roland McGrath
Ulrich Drepper
Jakub Jelinek