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| author | Clement Deschamps <clement.deschamps@greensocs.com> | 2019-10-22 16:00:16 +0200 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2019-10-28 10:35:23 +0100 |
| commit | 1b1940026c95b941d9cf75bd38b37fe3feaa78a7 (patch) | |
| tree | 802e2c4bdf87cbaee41511203213b88e7b6da4af /accel | |
| parent | 7f445c8c7aad0d8fca7d99a48cc8118dc82aa0f3 (diff) | |
| download | qemu-1b1940026c95b941d9cf75bd38b37fe3feaa78a7.zip qemu-1b1940026c95b941d9cf75bd38b37fe3feaa78a7.tar.gz qemu-1b1940026c95b941d9cf75bd38b37fe3feaa78a7.tar.bz2 | |
translate-all: fix uninitialized tb->orig_tb
This fixes a segmentation fault in icount mode when executing
from an IO region.
TB is marked as CF_NOCACHE but tb->orig_tb is not initialized
(equals previous value in code_gen_buffer).
The issue happens in cpu_io_recompile() when it tries to invalidate orig_tb.
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Clement Deschamps <clement.deschamps@greensocs.com>
Message-Id: <20191022140016.918371-1-clement.deschamps@greensocs.com>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Diffstat (limited to 'accel')
| -rw-r--r-- | accel/tcg/translate-all.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 66d4bc4..f9b7ba1 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -1722,6 +1722,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu, tb->cs_base = cs_base; tb->flags = flags; tb->cflags = cflags; + tb->orig_tb = NULL; tb->trace_vcpu_dstate = *cpu->trace_dstate; tcg_ctx->tb_cflags = cflags; tb_overflow: |