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

History

Bobby Bingham e31c8c2d79 ppc64: fix setjmp/longjmp handling of TOC pointer The TOC pointer is constant within a single dso, but needs to be saved and restored around cross-dso calls. The PLT stub saves it to the caller's stack frame, and the linker adds code to the caller to restore it. With a local call, as within a single dso or with static linking, this doesn't happen and the TOC pointer is always in r2. Therefore, setjmp/longjmp need to save/restore the TOC pointer from/to different locations depending on whether the call to setjmp was a local or non-local call. It is always safe for longjmp to restore to both r2 and the caller's stack. If the call to setjmp was local, and only r2 matters and the stack location will be ignored, but is required by the ABI to be reserved for the TOC pointer. If the call was non-local, then only the stack location matters, and whatever is restored into r2 will be clobbered anyway when the caller reloads r2 from the stack. A little extra care is required for sigsetjmp, because it uses setjmp internally. After the second return from this setjmp call, r2 will contain the caller's TOC pointer instead of libc's TOC pointer. We need to save and restore the correct libc pointer before we can tail call to __sigsetjmp_tail.		9 years ago
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aarch64	fix build regression in aarch64 sigsetjmp	11 years ago
arm	explicitly assemble all arm asm sources as UAL	11 years ago
i386	remove the last of possible-textrels from i386 asm	11 years ago
microblaze	remove invalid PLT calls from microblaze asm	11 years ago
mips	redesign sigsetjmp so that signal mask is restored after longjmp	11 years ago
mips64	add mips64 port	10 years ago
mipsn32	add mips n32 port (ILP32 ABI for mips64)	10 years ago
or1k	remove invalid PLT calls from or1k asm	11 years ago
powerpc	remove possible-textrels from powerpc asm	11 years ago
powerpc64	ppc64: fix setjmp/longjmp handling of TOC pointer	9 years ago
s390x	fix crashing sigsetjmp on s390x	10 years ago
sh	fix signal return for sh/fdpic	11 years ago
x32	work around gdb issues recognizing sigreturn trampoline on x86_64	10 years ago
x86_64	work around gdb issues recognizing sigreturn trampoline on x86_64	10 years ago
block.c	transition to using functions for internal signal blocking/restoring	13 years ago
getitimer.c	global cleanup to use the new syscall interface	15 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	fix missing prototypes/wrong signature for psiginfo, psignal	15 years ago
psignal.c	implement psignal and psiginfo	15 years ago
raise.c	use tkill instead of tgkill in implementing raise	12 years ago
restore.c	changes to kernel sigaction struct handling in preparation for mips port	14 years ago
setitimer.c	use restrict everywhere it's required by c99 and/or posix 2008	14 years ago
sigaction.c	fix crash when signal number 0 is passed to sigaction	11 years ago
sigaddset.c	change sigset_t functions to restrict to _NSIG	13 years ago
sigaltstack.c	use restrict everywhere it's required by c99 and/or posix 2008	14 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	change sigset_t functions to restrict to _NSIG	13 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	add __sysv_signal abi-compat alias for the signal function	12 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	use a separate signal from SIGCANCEL for SIGEV_THREAD timers	15 years ago
sigset.c	use 0 instead of NULL for null pointer constants	13 years ago
sigsetjmp.c	remove unused (and invalid) C version of sigsetjmp	11 years ago
sigsetjmp_tail.c	eliminate use of SHARED macro to suppress visibility attributes	11 years ago
sigsuspend.c	remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG	13 years ago
sigtimedwait.c	remove __SYSCALL_SSLEN arch macro in favor of using public _NSIG	13 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