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c32c868ab8
glibc/sysdeps/unix/sysv/linux/alpha
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Adhemerval Zanella c32c868ab8 posix: Add _Fork [BZ #4737] 
Austin Group issue 62 [1] dropped the async-signal-safe requirement
for fork and provided a async-signal-safe _Fork replacement that
does not run the atfork handlers.  It will be included in the next
POSIX standard.

It allow to close a long standing issue to make fork AS-safe (BZ#4737).
As indicated on the bug, besides the internal lock for the atfork
handlers itself; there is no guarantee that the handlers itself will
not introduce more AS-safe issues.

The idea is synchronize fork with the required internal locks to allow
children in multithread processes to use mostly of standard function
(even though POSIX states only AS-safe function should be used).  On
signal handles, _Fork should be used intead and only AS-safe functions
should be used.

For testing, the new tst-_Fork only check basic usage.  I also added
a new tst-mallocfork3 which uses the same strategy to check for
deadlock of tst-mallocfork2 but using threads instead of subprocesses
(and it does deadlock if it replaces _Fork with fork).

[1] https://austingroupbugs.net/view.php?id=62
2021-06-28 15:55:56 -03:00
..
alpha Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
alphaev6/fpu Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
alphaev67/fpu Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
bits Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fpu Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
sys Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
a.out.h Break lines before not after operators, batch 4. 2019-03-07 20:20:25 +00:00
adjtime.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
adjtimex.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
aio_cancel.c Linux: Move aio_cancel, aio_cancel64 into libc 2021-06-25 11:48:46 +02:00
arch-syscall.h Update syscall lists for Linux 5.12. 2021-04-28 17:19:24 +00:00
brk.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
c++-types.data alpha: Move remaining files out of sysdeps/unix/sysv/linux/alpha/nptl/ 2014-05-23 11:20:48 -07:00
clone.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
configure Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
configure.ac Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
dl-auxv.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
dl-support.c Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
dl-sysdep.c Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
errlist-compat.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fraiseexcpt.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fstatfs64.c linux: Consolidate fstatfs implementations 2021-02-11 07:58:31 -03:00
fstatfs.c linux: Consolidate fstatfs implementations 2021-02-11 07:58:31 -03:00
fxstat64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
fxstatat64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getclktck.c Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
getcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getdents64.c Consolidate Linux getdents{64} implementation 2018-04-19 08:49:52 -03:00
getdents.c Consolidate Linux getdents{64} implementation 2018-04-19 08:49:52 -03:00
getegid.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
geteuid.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gethostname.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getppid.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
getrlimit64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
gettimeofday.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
glob-lstat-compat.c posix: Add compat glob symbol to not follow dangling symbols 2017-09-25 18:04:16 -07:00
globfree.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ieee_get_fp_control.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ieee_set_fp_control.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
ioperm.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ipc_priv.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
jmp_buf-macros.h Add jmp_buf-macros.h 2017-11-09 05:10:03 -08:00
kernel_sigaction.h alpha: Use Linux generic sigaction implementation 2018-12-18 19:52:21 -02:00
kernel_stat.h alpha: Remove anonymous union in struct stat [BZ #27042] 2020-12-21 09:09:43 -03:00
kernel_sysinfo.h Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
kernel_termios.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
kernel-features.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
ld.abilist ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] 2020-02-15 11:01:23 +01:00
libanl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libBrokenLocale.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libc.abilist posix: Add _Fork [BZ #4737] 2021-06-28 15:55:56 -03:00
libcrypt.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libdl.abilist dlfcn: Move dlopen into libc 2021-06-03 08:26:04 +02:00
libm.abilist New exp10f version without SVID compat wrapper 2020-06-19 12:08:47 -03:00
libnsl.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libpthread.abilist nptl: Remove remaining code from libpthread 2021-05-21 22:35:01 +02:00
libresolv.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
librt-compat.c Linux: Move timer_settime, __timer_settime64 from librt to libc 2021-06-28 09:51:01 +02:00
librt.abilist Linux: Move timer_settime, __timer_settime64 from librt to libc 2021-06-28 09:51:01 +02:00
libthread_db.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
libutil.abilist Ignore absolute symbols in ABI tests. 2018-05-04 15:46:32 +00:00
localplt.data ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486] 2020-02-15 11:01:23 +01:00
lxstat64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
makecontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
Makefile nptl: Remove remaining code from libpthread 2021-05-21 22:35:01 +02:00
nldbl-abi.h Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
oldglob.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_adjtime.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_getitimer.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_getrusage.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_gettimeofday.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_setitimer.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_settimeofday.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_utimes.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
osf_wait4.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
pipe.S Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
register-dump.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
rt_sigaction.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
select.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setfpucw.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
setrlimit64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
settimeofday.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
shlib-versions Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sizes.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
statfs64.c linux: Consolidate statfs implementations 2021-02-11 08:00:11 -03:00
statfs.c linux: Consolidate statfs implementations 2021-02-11 08:00:11 -03:00
swapcontext.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
syscall.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
syscalls.list linux: Consolidate statfs implementations 2021-02-11 08:00:11 -03:00
sysconf.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
sysdep.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
timer_t_was_int_compat.h Linux: Define TIMER_T_WAS_INT_COMPAT in kernel-posix-timers.h 2021-06-28 09:51:00 +02:00
ucontext-offsets.sym Fix mcontext_t sigcontext namespace (bug 21457). 2017-08-30 22:02:04 +00:00
Versions Linux: Move timer_settime, __timer_settime64 from librt to libc 2021-06-28 09:51:01 +02:00
vfork.S Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
wait4.c alpha: Provide wait4 for static library [BZ #27150] 2021-01-05 11:22:25 -03:00
wordexp.c Relocate alpha from ports to libc 2014-02-12 07:00:06 -08:00
xstat64.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
xstatconv.c Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
xstatconv.h Update copyright dates with scripts/update-copyrights 2021-01-02 12:17:34 -08:00
xstatver.h Remove mknod wrapper functions, move them to symbols 2020-10-09 17:02:06 -03:00