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do not generate basic-block callback when translation is broken in the middle due to full cache (all the remaining archs)

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This commit is contained in:
Nguyen Anh Quynh
2015-08-27 21:09:00 +08:00
parent 2fcc8528ae
commit b335cf016c
5 changed files with 54 additions and 6 deletions
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11
qemu/target-m68k/translate.c
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@@ -3076,6 +3076,7 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
int num_insns;
int max_insns;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
bool block_full = false;
/* generate intermediate code */
pc_start = tb->pc;
@@ -3101,7 +3102,9 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
max_insns = CF_COUNT_MASK;
// Unicorn: trace this block on request
if (env->uc->hook_block) {
// Only hook this block if it is not broken from previous translation due to
// full translation cache
if (env->uc->hook_block && !env->uc->block_full) {
struct hook_struct *trace = hook_find((uch)env->uc, UC_HOOK_BLOCK, pc_start);
if (trace) {
// save block address to see if we need to patch block size later
@@ -3145,6 +3148,10 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
(pc_offset) < (TARGET_PAGE_SIZE - 32) &&
num_insns < max_insns);
/* if too long translation, save this info */
if (tcg_ctx->gen_opc_ptr >= gen_opc_end || num_insns >= max_insns)
block_full = true;
//if (tb->cflags & CF_LAST_IO)
// gen_io_end();
if (unlikely(cs->singlestep_enabled)) {
@@ -3187,6 +3194,8 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
//optimize_flags();
//expand_target_qops();
env->uc->block_full = block_full;
}
void gen_intermediate_code(CPUM68KState *env, TranslationBlock *tb)