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accel/tcg: Assert that tb->size != 0 after translation 

If arch-specific code generates a translation block of size 0,
tb_gen_code() may generate a spurious exception. Add an assertion in
order to catch such situations early.

Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Message-Id: <20210416154939.32404-5-iii@linux.ibm.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
master
Ilya Leoshkevich 2021-04-16 17:49:39 +02:00 committed by Cornelia Huck
parent f689befde6
commit 0b00b0c1e0
1 changed files with 1 additions and 0 deletions
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accel/tcg/translate-all.c
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@ -1912,6 +1912,7 @@ TranslationBlock *tb_gen_code(CPUState *cpu,
tcg_ctx->cpu = env_cpu(env);
gen_intermediate_code(cpu, tb, max_insns);
assert(tb->size != 0);
tcg_ctx->cpu = NULL;
max_insns = tb->icount;