| commit | ef6a778ea2af4ebcf08a84cc9314cfe7cf2a2299 | |
| author | Timothy E Baldwin <T.E.Baldwin99@members.leeds.ac.uk> | |
| Fri, 27 May 2016 14:51:54 +0000 (27 15:51 +0100) | ||
| committer | Riku Voipio <riku.voipio@linaro.org> | |
| Tue, 7 Jun 2016 13:39:07 +0000 (7 16:39 +0300) | ||
| tree | 372288a3d559a323da1debc51cd987eaed7938d2 | treesnapshot (tar.gz zip) |
| parent | 655ed67c2a248cf0a887229d8492d6ddc0518545 | commitdiff |
linux-user: Block signals during sigaction() handling
Block signals while emulating sigaction. This is a non-interruptible
syscall, and using block_signals() avoids races where the host
signal handler is invoked and tries to examine the signal handler
data structures while we are updating them.
Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Message-id: 1441497448-32489-29-git-send-email-T.E.Baldwin99@members.leeds.ac.uk
[PMM: expanded commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Block signals while emulating sigaction. This is a non-interruptible
syscall, and using block_signals() avoids races where the host
signal handler is invoked and tries to examine the signal handler
data structures while we are updating them.
Signed-off-by: Timothy Edward Baldwin <T.E.Baldwin99@members.leeds.ac.uk>
Message-id: 1441497448-32489-29-git-send-email-T.E.Baldwin99@members.leeds.ac.uk
[PMM: expanded commit message]
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
| linux-user/signal.c | diffblobblamehistory |