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Set SA_RESTORER in sigaction()

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GDB looks for specific opcode sequences when trying to recognize a stack
frame as a signal trampoline.  The sequences it looks for happen to be those
created when SA_RESTORER is set, since glibc always sets a restorer.  This
patch does the same here, so that the trampolines can be correctly identified.

Change-Id: I0ac574a68818cb24d939c3527f3aaeb04b853d04
This commit is contained in:
Matt Fischer
2010-01-11 10:02:06 +08:00
committed by Garmin Android technology group
parent c3581dc78a
commit e4fa46e75c
8 changed files with 50 additions and 6 deletions
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libc/include/sys/linux-unistd.h
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@@ -141,6 +141,7 @@ int __rt_sigaction (int sig, const struct sigaction *act, struct si
int __rt_sigprocmask (int how, const sigset_t *set, sigset_t *oset, size_t sigsetsize);
int __rt_sigtimedwait (const sigset_t *set, struct siginfo_t *info, struct timespec_t *timeout, size_t sigset_size);
int sigpending (sigset_t *);
int __sigaction (int, const struct sigaction *, struct sigaction *);
int socket (int, int, int);
int socketpair (int, int, int, int*);
int bind (int, struct sockaddr *, int);