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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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14
qemu/target-mips/translate.c
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@ -19172,6 +19172,7 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
int is_slot = 0;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
TCGArg *save_opparam_ptr = NULL;
bool block_full = false;
if (search_pc)
qemu_log("search pc %d\n", search_pc);
@ -19207,7 +19208,9 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
LOG_DISAS("\ntb %p idx %d hflags %04x\n", tb, ctx.mem_idx, ctx.hflags);
// 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
@ -19251,7 +19254,7 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
// Unicorn: end address tells us to stop emulation
if (ctx.pc == ctx.uc->addr_end) {
generate_exception(&ctx, EXCP_SYSCALL);
insn_bytes = 0;
break;
} else {
// Unicorn: save param buffer
if (env->uc->hook_insn)
@ -19315,6 +19318,11 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
//if (singlestep)
// break;
}
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();
//}
@ -19350,6 +19358,8 @@ done_generating:
tb->size = ctx.pc - pc_start;
tb->icount = num_insns;
}
env->uc->block_full = block_full;
}
void gen_intermediate_code (CPUMIPSState *env, struct TranslationBlock *tb)