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tcg/s390: Make direct jump patching thread-safe
authorSergey Fedorov <serge.fdrv@gmail.com>
Fri, 22 Apr 2016 16:08:48 +0000 (19:08 +0300)
committerRichard Henderson <rth@twiddle.net>
Fri, 13 May 2016 00:06:41 +0000 (14:06 -1000)
commited3d51ecd7fe248d3959e469d53890ac9ffe0cd2
tree2bb706344e30ab4fddf8a7c2ade4424f9afa1070tree
parent0d07abf05e98903c7faf204a9a90f7d45b7554dccommit | diff
tcg/s390: Make direct jump patching thread-safe

Ensure direct jump patching in s390 is atomic by:
 * naturally aligning a location of direct jump address;
 * using atomic_read()/atomic_set() for code patching.

Signed-off-by: Sergey Fedorov <serge.fdrv@gmail.com>
Signed-off-by: Sergey Fedorov <sergey.fedorov@linaro.org>
Message-Id: <1461341333-19646-7-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
include/exec/exec-all.h diff | blob | history
tcg/s390/tcg-target.inc.c diff | blob | history
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