diff mbox series

[PULL,v2,6/7] linux-user: avoid treading on gprof's SIGPROF signals

Message ID 20190510104536.17483-7-laurent@vivier.eu
State Accepted
Commit 716cdbe0e846f1b75a1ee629619bfc9337ddb914
Headers show
Series None | expand

Commit Message

Laurent Vivier May 10, 2019, 10:45 a.m. UTC 
From: Alex Bennée <alex.bennee@linaro.org>


The guest tends to get confused when it receives signals it doesn't
know about. Given the gprof magic has also set up it's own handler we
would do well to avoid stomping on it as well.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>

Message-Id: <20190502145846.26226-1-alex.bennee@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>

---
 linux-user/signal.c | 5 +++++
 1 file changed, 5 insertions(+)

-- 
2.20.1
diff mbox series

Patch

diff --git a/linux-user/signal.c b/linux-user/signal.c
index e2c0b3717357..44b2d3b35a0d 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -508,6 +508,11 @@  void signal_init(void)
     act.sa_flags = SA_SIGINFO;
     act.sa_sigaction = host_signal_handler;
     for(i = 1; i <= TARGET_NSIG; i++) {
+#ifdef TARGET_GPROF
+        if (i == SIGPROF) {
+            continue;
+        }
+#endif
         host_sig = target_to_host_signal(i);
         sigaction(host_sig, NULL, &oact);
         if (oact.sa_sigaction == (void *)SIG_IGN) {