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linux-user: avoid treading on gprof's SIGPROF signals

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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>
This commit is contained in:
Alex Bennée 2019-05-02 15:58:46 +01:00 committed by Laurent Vivier
parent d87146bce0
commit 716cdbe0e8
1 changed files with 5 additions and 0 deletions
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5
linux-user/signal.c
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@ -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) {