From: Sergey Fedorov <serge.f...@gmail.com> Ensure direct jump patching in SPARC is atomic by using atomic_read()/atomic_set() for code patching.
Signed-off-by: Sergey Fedorov <serge.f...@gmail.com> Signed-off-by: Sergey Fedorov <sergey.fedo...@linaro.org> Reviewed-by: Alex Bennée <alex.ben...@linaro.org> Message-Id: <1461341333-19646-10-git-send-email-sergey.fedo...@linaro.org> Signed-off-by: Richard Henderson <r...@twiddle.net> --- tcg/sparc/tcg-target.inc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/tcg/sparc/tcg-target.inc.c b/tcg/sparc/tcg-target.inc.c index d641cfd..c6479e2 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); } -- 2.5.5