diff options
Diffstat (limited to 'arch/um/os-Linux/signal.c')
| -rw-r--r-- | arch/um/os-Linux/signal.c | 18 |
1 files changed, 13 insertions, 5 deletions
diff --git a/arch/um/os-Linux/signal.c b/arch/um/os-Linux/signal.c index b1469fe9329..7b605e4dfff 100644 --- a/arch/um/os-Linux/signal.c +++ b/arch/um/os-Linux/signal.c @@ -15,7 +15,7 @@ #include <sysdep/mcontext.h> #include "internal.h" -void (*sig_info[NSIG])(int, siginfo_t *, struct uml_pt_regs *) = { +void (*sig_info[NSIG])(int, struct siginfo *, struct uml_pt_regs *) = { [SIGTRAP] = relay_signal, [SIGFPE] = relay_signal, [SIGILL] = relay_signal, @@ -25,7 +25,7 @@ void (*sig_info[NSIG])(int, siginfo_t *, struct uml_pt_regs *) = { [SIGIO] = sigio_handler, [SIGVTALRM] = timer_handler }; -static void sig_handler_common(int sig, siginfo_t *si, mcontext_t *mc) +static void sig_handler_common(int sig, struct siginfo *si, mcontext_t *mc) { struct uml_pt_regs r; int save_errno = errno; @@ -61,7 +61,7 @@ static void sig_handler_common(int sig, siginfo_t *si, mcontext_t *mc) static int signals_enabled; static unsigned int signals_pending; -void sig_handler(int sig, siginfo_t *si, mcontext_t *mc) +void sig_handler(int sig, struct siginfo *si, mcontext_t *mc) { int enabled; @@ -120,7 +120,7 @@ void set_sigstack(void *sig_stack, int size) panic("enabling signal stack failed, errno = %d\n", errno); } -static void (*handlers[_NSIG])(int sig, siginfo_t *si, mcontext_t *mc) = { +static void (*handlers[_NSIG])(int sig, struct siginfo *si, mcontext_t *mc) = { [SIGSEGV] = sig_handler, [SIGBUS] = sig_handler, [SIGILL] = sig_handler, @@ -162,7 +162,7 @@ static void hard_handler(int sig, siginfo_t *si, void *p) while ((sig = ffs(pending)) != 0){ sig--; pending &= ~(1 << sig); - (*handlers[sig])(sig, si, mc); + (*handlers[sig])(sig, (struct siginfo *)si, mc); } /* @@ -304,3 +304,11 @@ int set_signals(int enable) return ret; } + +int os_is_signal_stack(void) +{ + stack_t ss; + sigaltstack(NULL, &ss); + + return ss.ss_flags & SS_ONSTACK; +} |