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[aarch64] use clone(SIGCHLD, 0) instead of fork()
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Authored by garious on May 23 2014, 3:53 PM.

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Summary

Compilation fix for the common sanitizer library on AArch64

garious retitled this revision from to [aarch64] use clone(SIGCHLD, 0) instead of fork().

garious updated this object.

garious edited the test plan for this revision. (Show Details)

garious added a reviewer: kcc.

garious added a subscriber: Unknown Object (MLST).

LGTM (assuming you've tested in x86_64 linux)

This revision is now accepted and ready to land.May 26 2014, 1:01 AM

Closed by commit rL209641 (authored by @garious).

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compiler-rt/

trunk/

lib/

sanitizer_common/

4 lines

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	#endif			#endif

	uptr internal_sigaltstack(const struct sigaltstack *ss,			uptr internal_sigaltstack(const struct sigaltstack *ss,
	struct sigaltstack *oss) {			struct sigaltstack *oss) {
	return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);			return internal_syscall(SYSCALL(sigaltstack), (uptr)ss, (uptr)oss);
	}			}

	int internal_fork() {			int internal_fork() {
				#if SANITIZER_USES_CANONICAL_LINUX_SYSCALLS
				return internal_syscall(SYSCALL(clone), SIGCHLD, 0);
				#else
	return internal_syscall(SYSCALL(fork));			return internal_syscall(SYSCALL(fork));
				#endif
	}			}

	#if SANITIZER_LINUX			#if SANITIZER_LINUX
	// Doesn't set sa_restorer, use with caution (see below).			// Doesn't set sa_restorer, use with caution (see below).
	int internal_sigaction_norestorer(int signum, const void act, void oldact) {			int internal_sigaction_norestorer(int signum, const void act, void oldact) {
	__sanitizer_kernel_sigaction_t k_act, k_oldact;			__sanitizer_kernel_sigaction_t k_act, k_oldact;
	internal_memset(&k_act, 0, sizeof(__sanitizer_kernel_sigaction_t));			internal_memset(&k_act, 0, sizeof(__sanitizer_kernel_sigaction_t));
	internal_memset(&k_oldact, 0, sizeof(__sanitizer_kernel_sigaction_t));			internal_memset(&k_oldact, 0, sizeof(__sanitizer_kernel_sigaction_t));
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