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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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12
qemu/target-arm/translate-a64.c
View File

@ -11044,6 +11044,7 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
int num_insns;
int max_insns;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
bool block_full = false;
pc_start = tb->pc;
@ -11105,7 +11106,9 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
tcg_clear_temp_count();
// 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
@ -11186,6 +11189,11 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
dc->pc < next_page_start &&
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();
//}
@ -11251,4 +11259,6 @@ done_generating:
tb->size = dc->pc - pc_start;
tb->icount = num_insns;
}
env->uc->block_full = block_full;
}

12
qemu/target-arm/translate.c
View File

@ -11149,6 +11149,7 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
int num_insns;
int max_insns;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
bool block_full = false;
/* generate intermediate code */
@ -11228,7 +11229,9 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
tcg_clear_temp_count();
// 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
@ -11398,6 +11401,11 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
//gen_io_end();
}
/* if too long translation, save this info */
if (tcg_ctx->gen_opc_ptr >= gen_opc_end || num_insns >= max_insns) {
block_full = true;
}
/* At this stage dc->condjmp will only be set when the skipped
instruction was a conditional branch or trap, and the PC has
already been written. */
@ -11502,6 +11510,8 @@ done_generating:
tb->size = dc->pc - pc_start;
//tb->icount = num_insns;
}
env->uc->block_full = block_full;
}
void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb)

11
qemu/target-m68k/translate.c
View File

@ -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)

14
qemu/target-mips/translate.c
View File

@ -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)

11
qemu/target-sparc/translate.c
View File

@ -5383,6 +5383,7 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
int max_insns;
unsigned int insn;
TCGContext *tcg_ctx = env->uc->tcg_ctx;
bool block_full = false;
memset(dc, 0, sizeof(DisasContext));
dc->uc = env->uc;
@ -5405,7 +5406,9 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
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
@ -5473,6 +5476,10 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
(dc->pc - pc_start) < (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;
exit_gen_loop:
//if (tb->cflags & CF_LAST_IO) {
// gen_io_end();
@ -5506,6 +5513,8 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
tb->size = last_pc + 4 - pc_start;
tb->icount = num_insns;
}
env->uc->block_full = block_full;
}
void gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb)