diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-22 19:08:52 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:41 -1000 |
| commit | c82460a560176ef69c2f0662bd280612e274db96 (patch) | |
| tree | 3ef38c09e6084a63a633a85d46684f1c6b9c181d /tcg/mips | |
| parent | 84f79fb7c6e857edc807e4a251338243ce0cbac3 (diff) | |
tcg/mips: Make direct jump patching thread-safe
Ensure direct jump patching in MIPS is atomic by 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: <1461341333-19646-11-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
[rth: Merged the deposit32 followup.]
[rth: Merged the following followup.]
Message-Id: <1462210518-26522-1-git-send-email-sergey.fedorov@linaro.org>
Diffstat (limited to 'tcg/mips')
| -rw-r--r-- | tcg/mips/tcg-target.inc.c | 3 |
1 files changed, 1 insertions, 2 deletions
diff --git a/tcg/mips/tcg-target.inc.c b/tcg/mips/tcg-target.inc.c index aaf881cfd0..1e5a6b41fa 100644 --- a/tcg/mips/tcg-target.inc.c +++ b/tcg/mips/tcg-target.inc.c @@ -1885,7 +1885,6 @@ static void tcg_target_init(TCGContext *s) void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) { - uint32_t *ptr = (uint32_t *)jmp_addr; - *ptr = deposit32(*ptr, 0, 26, addr >> 2); + atomic_set((uint32_t *)jmp_addr, deposit32(OPC_J, 0, 26, addr >> 2)); flush_icache_range(jmp_addr, jmp_addr + 4); } |