The sigsegv protection is done by forcing the catch (needed in qemu-user)
and then taking it off from the return mask (well, adding it in fact)
---
linux-user/signal.c | 9 ++++++++-
1 files changed, 8 insertions(+), 1 deletions(-)
diff --git a/linux-user/signal.c b/linux-user/signal.c
index b8b8268..8764f57 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -5468,7 +5468,14 @@ long do_rt_sigreturn(CPUArchState *env)
*/
int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset)
{
- return sigprocmask(how, set, oldset);
+ int ret;
+ sigset_t temp = *set;
+ if (set) {
+ sigdelset(&temp, SIGSEGV);
+ }
+ ret = sigprocmask(how, &temp, oldset);
+ sigaddset(oldset, SIGSEGV);
+ return ret;
}
void process_pending_signals(CPUArchState *cpu_env)
--
1.7.5.4
