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Undo the disaster that was the patch to unicorn github issue #266 and fix it correctly. makes normal self-modifying code work.

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This commit is contained in:
Andrew Dutcher
2016-07-14 09:40:45 -07:00
parent 236b6e9085
commit 97b10da133
9 changed files with 24 additions and 8 deletions
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8
qemu/target-i386/translate.c
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@@ -8388,15 +8388,17 @@ static inline void gen_intermediate_code_internal(uint8_t *gen_opc_cc_op,
dc->is_jmp = DISAS_NEXT;
lj = -1;
max_insns = tb->cflags & CF_COUNT_MASK;
if (max_insns <= 1)
if (max_insns == 0)
max_insns = CF_COUNT_MASK;
// Unicorn: trace this block on request
// Only hook this block if it is not broken from previous translation due to
// full translation cache
// Only hook this block if the previous block was not truncated due to space
if (!env->uc->block_full && HOOK_EXISTS_BOUNDED(env->uc, UC_HOOK_BLOCK, pc_start)) {
env->uc->block_addr = pc_start;
env->uc->size_arg = tcg_ctx->gen_opparam_buf - tcg_ctx->gen_opparam_ptr + 1;
gen_uc_tracecode(tcg_ctx, 0xf8f8f8f8, UC_HOOK_BLOCK_IDX, env->uc, pc_start);
} else {
env->uc->size_arg = -1;
}
gen_tb_start(tcg_ctx);