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Diffstat (limited to 'arch/um/os-Linux/skas/process.c')
-rw-r--r--arch/um/os-Linux/skas/process.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/um/os-Linux/skas/process.c b/arch/um/os-Linux/skas/process.c
index 50418a5e713..88ff0de95cd 100644
--- a/arch/um/os-Linux/skas/process.c
+++ b/arch/um/os-Linux/skas/process.c
@@ -189,14 +189,25 @@ static int userspace_tramp(void *stack)
}
}
if(!ptrace_faultinfo && (stack != NULL)){
+ struct sigaction sa;
+
unsigned long v = UML_CONFIG_STUB_CODE +
(unsigned long) stub_segv_handler -
(unsigned long) &__syscall_stub_start;
set_sigstack((void *) UML_CONFIG_STUB_DATA, page_size());
- set_handler(SIGSEGV, (void *) v, SA_ONSTACK,
- SIGIO, SIGWINCH, SIGALRM, SIGVTALRM,
- SIGUSR1, -1);
+ sigemptyset(&sa.sa_mask);
+ sigaddset(&sa.sa_mask, SIGIO);
+ sigaddset(&sa.sa_mask, SIGWINCH);
+ sigaddset(&sa.sa_mask, SIGALRM);
+ sigaddset(&sa.sa_mask, SIGVTALRM);
+ sigaddset(&sa.sa_mask, SIGUSR1);
+ sa.sa_flags = SA_ONSTACK;
+ sa.sa_handler = (void *) v;
+ sa.sa_restorer = NULL;
+ if(sigaction(SIGSEGV, &sa, NULL) < 0)
+ panic("userspace_tramp - setting SIGSEGV handler "
+ "failed - errno = %d\n", errno);
}
os_stop_process(os_getpid());