diff options
| author | Sergey Fedorov <serge.fdrv@gmail.com> | 2016-04-22 19:08:51 +0300 |
|---|---|---|
| committer | Richard Henderson <rth@twiddle.net> | 2016-05-12 14:06:41 -1000 |
| commit | 84f79fb7c6e857edc807e4a251338243ce0cbac3 (patch) | |
| tree | 0b8e17ad6af0c3e3767d802c941c26fdf265c1cf | |
| parent | 9e269112953be4d670cb0d25042bd6546fcf3e45 (diff) | |
tcg/sparc: Make direct jump patching thread-safe
Ensure direct jump patching in SPARC 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>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Message-Id: <1461341333-19646-10-git-send-email-sergey.fedorov@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
| -rw-r--r-- | tcg/sparc/tcg-target.inc.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index d641cfd8c5..c6479e2507 100644 --- a/tcg/sparc/tcg-target.inc.c +++ b/tcg/sparc/tcg-target.inc.c @@ -1647,6 +1647,6 @@ void tb_set_jmp_target1(uintptr_t jmp_addr, uintptr_t addr) the code_gen_buffer can't be larger than 2GB. */ tcg_debug_assert(disp == (int32_t)disp); - *ptr = CALL | (uint32_t)disp >> 2; + atomic_set(ptr, deposit32(CALL, 0, 30, disp >> 2)); flush_icache_range(jmp_addr, jmp_addr + 4); } |