riscv/musl - musl - Gitea: Git with a cup of tea

History

Rich Felker 0b87551bdf lift sigaction abort locking to fix posix_spawn child deadlock commit `25ea9f712c` introduced a deadlock to the posix_spawn child whereby, if abort was called in the parent and ended up taking the abort lock to terminate the process, the __libc_sigaction calls in the child would wait forever to obtain a lock that would not be released. this could be fixed by having abort set the abort lock as the exit futex address, but it's cleaner to just remove the SIGABRT special handling from the internal __libc_sigaction and lift it to the public sigaction function. nothing but the posix_spawn child calls __libc_sigaction on SIGABRT, and since commit `b7bc966522` the abort lock is held at the time of __clone, which precludes the child inheriting a kernel-level signal disposition inconsistent with the disposition on the abstract machine. this means it's fine to inspect and modify the disposition in the child without a lock.		6 years ago
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aarch64	apply hidden visibility to sigreturn code fragments	8 years ago
arm	arm: avoid conditional branch to PLT in sigsetjmp	7 years ago
i386	apply hidden visibility to sigreturn code fragments	8 years ago
m68k	add m68k port	8 years ago
microblaze	apply hidden visibility to sigreturn code fragments	8 years ago
mips	apply hidden visibility to sigreturn code fragments	8 years ago
mips64	apply hidden visibility to sigreturn code fragments	8 years ago
mipsn32	apply hidden visibility to sigreturn code fragments	8 years ago
or1k	remove invalid PLT calls from or1k asm	11 years ago
powerpc	apply hidden visibility to sigreturn code fragments	8 years ago
powerpc64	apply hidden visibility to sigreturn code fragments	8 years ago
riscv64	add riscv64 architecture support	7 years ago
s390x	apply hidden visibility to sigreturn code fragments	8 years ago
sh	apply hidden visibility to sigreturn code fragments	8 years ago
x32	setitimer, getitimer: decouple time_t from long	7 years ago
x86_64	apply hidden visibility to sigreturn code fragments	8 years ago
block.c	transition to using functions for internal signal blocking/restoring	13 years ago
getitimer.c	setitimer, getitimer: decouple time_t from long	7 years ago
kill.c	global cleanup to use the new syscall interface	15 years ago
killpg.c	initial check-in, version 0.5.0	15 years ago
psiginfo.c	prevent psignal/psiginfo from clobbering stderr orientation, errno	8 years ago
psignal.c	prevent psignal/psiginfo from clobbering stderr orientation, errno	8 years ago
raise.c	optimize raise not to make a syscall for getting tid	8 years ago
restore.c	apply hidden visibility to sigreturn code fragments	8 years ago
setitimer.c	setitimer, getitimer: decouple time_t from long	7 years ago
sigaction.c	lift sigaction abort locking to fix posix_spawn child deadlock	6 years ago
sigaddset.c	change sigset_t functions to restrict to _NSIG	13 years ago
sigaltstack.c	fix sigaltstack to ignore ss_size with SS_DISABLE, per POSIX	7 years ago
sigandset.c	fix const-correctness in sigandset/sigorset arguments	13 years ago
sigdelset.c	change sigset_t functions to restrict to _NSIG	13 years ago
sigemptyset.c	fix sigemptyset and sigfillset for mips	13 years ago
sigfillset.c	include cleanups: remove unused headers and add feature test macros	13 years ago
sighold.c	use 0 instead of NULL for null pointer constants	13 years ago
sigignore.c	use 0 instead of NULL for null pointer constants	13 years ago
siginterrupt.c	use 0 instead of NULL for null pointer constants	13 years ago
sigisemptyset.c	optimize sigisemptyset	8 years ago
sigismember.c	include cleanups: remove unused headers and add feature test macros	13 years ago
siglongjmp.c	redesign sigsetjmp so that signal mask is restored after longjmp	11 years ago
signal.c	reduce spurious inclusion of libc.h	8 years ago
sigorset.c	fix const-correctness in sigandset/sigorset arguments	13 years ago
sigpause.c	include cleanups: remove unused headers and add feature test macros	13 years ago
sigpending.c	remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG	13 years ago
sigprocmask.c	use restrict everywhere it's required by c99 and/or posix 2008	14 years ago
sigqueue.c	include cleanups: remove unused headers and add feature test macros	13 years ago
sigrelse.c	use 0 instead of NULL for null pointer constants	13 years ago
sigrtmax.c	fix _NSIG and SIGRTMAX on mips	13 years ago
sigrtmin.c	add public interface headers to implementation files	8 years ago
sigset.c	fix restrict violations in internal use of several functions	7 years ago
sigsetjmp.c	remove unused (and invalid) C version of sigsetjmp	11 years ago
sigsetjmp_tail.c	reduce spurious inclusion of libc.h	8 years ago
sigsuspend.c	reduce spurious inclusion of libc.h	8 years ago
sigtimedwait.c	sigtimedwait: add time64 syscall support, decouple 32-bit time_t	7 years ago
sigwait.c	use 0 instead of NULL for null pointer constants	13 years ago
sigwaitinfo.c	use 0 instead of NULL for null pointer constants	13 years ago