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target-*: Introduce and use cpu_breakpoint_test 

Reduce the boilerplate required for each target.  At the same time,
move the test for breakpoint after calling tcg_gen_insn_start.

Note that arm and aarch64 do not use cpu_breakpoint_test, but still
move the inline test down after tcg_gen_insn_start.

Reviewed-by: Aurelien Jarno <aurelien@aurel32.net>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <rth@twiddle.net>
This commit is contained in:
Richard Henderson 2015-09-17 15:58:10 -07:00
parent 959082fc4a
commit b933066ae0
18 changed files with 160 additions and 239 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
include/qom/cpu.h
View File

@ -721,6 +721,7 @@ void cpu_single_step(CPUState *cpu, int enabled);
/* 0x08 currently unused */
#define BP_GDB 0x10
#define BP_CPU 0x20
#define BP_ANY (BP_GDB | BP_CPU)
#define BP_WATCHPOINT_HIT_READ 0x40
#define BP_WATCHPOINT_HIT_WRITE 0x80
#define BP_WATCHPOINT_HIT (BP_WATCHPOINT_HIT_READ | BP_WATCHPOINT_HIT_WRITE)
@ -731,6 +732,21 @@ int cpu_breakpoint_remove(CPUState *cpu, vaddr pc, int flags);
void cpu_breakpoint_remove_by_ref(CPUState *cpu, CPUBreakpoint *breakpoint);
void cpu_breakpoint_remove_all(CPUState *cpu, int mask);
/* Return true if PC matches an installed breakpoint. */
static inline bool cpu_breakpoint_test(CPUState *cpu, vaddr pc, int mask)
{
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cpu->breakpoints))) {
QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) {
if (bp->pc == pc && (bp->flags & mask)) {
return true;
}
}
}
return false;
}
int cpu_watchpoint_insert(CPUState *cpu, vaddr addr, vaddr len,
int flags, CPUWatchpoint **watchpoint);
int cpu_watchpoint_remove(CPUState *cpu, vaddr addr,

13
target-alpha/translate.c
View File

@ -2868,7 +2868,6 @@ static inline void gen_intermediate_code_internal(AlphaCPU *cpu,
target_ulong pc_start;
target_ulong pc_mask;
uint32_t insn;
CPUBreakpoint *bp;
int j, lj = -1;
ExitStatus ret;
int num_insns;
@ -2913,14 +2912,6 @@ static inline void gen_intermediate_code_internal(AlphaCPU *cpu,
gen_tb_start(tb);
do {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == ctx.pc) {
gen_excp(&ctx, EXCP_DEBUG, 0);
break;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -2936,6 +2927,10 @@ static inline void gen_intermediate_code_internal(AlphaCPU *cpu,
tcg_gen_insn_start(ctx.pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
gen_excp(&ctx, EXCP_DEBUG, 0);
break;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

26
target-arm/translate-a64.c
View File

@ -11007,7 +11007,6 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
CPUState *cs = CPU(cpu);
CPUARMState *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
CPUBreakpoint *bp;
int j, lj;
target_ulong pc_start;
target_ulong next_page_start;
@ -11079,18 +11078,6 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
tcg_clear_temp_count();
do {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_exception_internal_insn(dc, 0, EXCP_DEBUG);
/* Advance PC so that clearing the breakpoint will
invalidate this TB. */
dc->pc += 2;
goto done_generating;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -11106,6 +11093,19 @@ void gen_intermediate_code_internal_a64(ARMCPU *cpu,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
CPUBreakpoint *bp;
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_exception_internal_insn(dc, 0, EXCP_DEBUG);
/* Advance PC so that clearing the breakpoint will
invalidate this TB. */
dc->pc += 2;
goto done_generating;
}
}
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

31
target-arm/translate.c
View File

@ -11177,7 +11177,6 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
CPUState *cs = CPU(cpu);
CPUARMState *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
CPUBreakpoint *bp;
int j, lj;
target_ulong pc_start;
target_ulong next_page_start;
@ -11306,6 +11305,21 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
store_cpu_field(tmp, condexec_bits);
}
do {
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
lj++;
while (lj < j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
tcg_ctx.gen_opc_pc[lj] = dc->pc;
gen_opc_condexec_bits[lj] = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1);
tcg_ctx.gen_opc_instr_start[lj] = 1;
tcg_ctx.gen_opc_icount[lj] = num_insns;
}
tcg_gen_insn_start(dc->pc);
num_insns++;
#ifdef CONFIG_USER_ONLY
/* Intercept jump to the magic kernel page. */
if (dc->pc >= 0xffff0000) {
@ -11326,6 +11340,7 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
#endif
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
CPUBreakpoint *bp;
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_exception_internal_insn(dc, 0, EXCP_DEBUG);
@ -11336,20 +11351,6 @@ static inline void gen_intermediate_code_internal(ARMCPU *cpu,
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
lj++;
while (lj < j)
tcg_ctx.gen_opc_instr_start[lj++] = 0;
}
tcg_ctx.gen_opc_pc[lj] = dc->pc;
gen_opc_condexec_bits[lj] = (dc->condexec_cond << 4) | (dc->condexec_mask >> 1);
tcg_ctx.gen_opc_instr_start[lj] = 1;
tcg_ctx.gen_opc_icount[lj] = num_insns;
}
tcg_gen_insn_start(dc->pc);
num_insns++;
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();

27
target-cris/translate.c
View File

@ -3030,23 +3030,6 @@ static unsigned int crisv32_decoder(CPUCRISState *env, DisasContext *dc)
return insn_len;
}
static void check_breakpoint(CPUCRISState *env, DisasContext *dc)
{
CPUState *cs = CPU(cris_env_get_cpu(env));
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
cris_evaluate_flags(dc);
tcg_gen_movi_tl(env_pc, dc->pc);
t_gen_raise_exception(EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
#include "translate_v10.c"
/*
@ -3175,8 +3158,6 @@ gen_intermediate_code_internal(CRISCPU *cpu, TranslationBlock *tb,
gen_tb_start(tb);
do {
check_breakpoint(env, dc);
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -3196,6 +3177,14 @@ gen_intermediate_code_internal(CRISCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
cris_evaluate_flags(dc);
tcg_gen_movi_tl(env_pc, dc->pc);
t_gen_raise_exception(EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
break;
}
/* Pretty disas. */
LOG_DIS("%8.8x:\t", dc->pc);

17
target-i386/translate.c
View File

@ -7849,7 +7849,6 @@ static inline void gen_intermediate_code_internal(X86CPU *cpu,
CPUX86State *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
target_ulong pc_ptr;
CPUBreakpoint *bp;
int j, lj;
uint64_t flags;
target_ulong pc_start;
@ -7938,15 +7937,6 @@ static inline void gen_intermediate_code_internal(X86CPU *cpu,
gen_tb_start(tb);
for(;;) {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == pc_ptr &&
!((bp->flags & BP_CPU) && (tb->flags & HF_RF_MASK))) {
gen_debug(dc, pc_ptr - dc->cs_base);
goto done_generating;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -7962,6 +7952,13 @@ static inline void gen_intermediate_code_internal(X86CPU *cpu,
tcg_gen_insn_start(pc_ptr);
num_insns++;
/* If RF is set, suppress an internally generated breakpoint. */
if (unlikely(cpu_breakpoint_test(cs, pc_ptr,
tb->flags & HF_RF_MASK
? BP_GDB : BP_ANY))) {
gen_debug(dc, pc_ptr - dc->cs_base);
goto done_generating;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

25
target-lm32/translate.c
View File

@ -1032,22 +1032,6 @@ static inline void decode(DisasContext *dc, uint32_t ir)
decinfo[dc->opcode](dc);
}
static void check_breakpoint(CPULM32State *env, DisasContext *dc)
{
CPUState *cs = CPU(lm32_env_get_cpu(env));
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
tcg_gen_movi_tl(cpu_pc, dc->pc);
t_gen_raise_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
/* generate intermediate code for basic block 'tb'. */
static inline
void gen_intermediate_code_internal(LM32CPU *cpu,
@ -1088,8 +1072,6 @@ void gen_intermediate_code_internal(LM32CPU *cpu,
gen_tb_start(tb);
do {
check_breakpoint(env, dc);
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -1105,6 +1087,13 @@ void gen_intermediate_code_internal(LM32CPU *cpu,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
tcg_gen_movi_tl(cpu_pc, dc->pc);
t_gen_raise_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
break;
}
/* Pretty disas. */
LOG_DIS("%8.8x:\t", dc->pc);

18
target-m68k/translate.c
View File

@ -2969,7 +2969,6 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
CPUState *cs = CPU(cpu);
CPUM68KState *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
CPUBreakpoint *bp;
int j, lj;
target_ulong pc_start;
int pc_offset;
@ -2999,17 +2998,6 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
do {
pc_offset = dc->pc - pc_start;
gen_throws_exception = NULL;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_exception(dc, dc->pc, EXCP_DEBUG);
dc->is_jmp = DISAS_JUMP;
break;
}
}
if (dc->is_jmp)
break;
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -3024,6 +3012,12 @@ gen_intermediate_code_internal(M68kCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
gen_exception(dc, dc->pc, EXCP_DEBUG);
dc->is_jmp = DISAS_JUMP;
break;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

36
target-microblaze/translate.c
View File

@ -1626,21 +1626,6 @@ static inline void decode(DisasContext *dc, uint32_t ir)
}
}
static void check_breakpoint(CPUMBState *env, DisasContext *dc)
{
CPUState *cs = CPU(mb_env_get_cpu(env));
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
t_gen_raise_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
/* generate intermediate code for basic block 'tb'. */
static inline void
gen_intermediate_code_internal(MicroBlazeCPU *cpu, TranslationBlock *tb,
@ -1695,14 +1680,6 @@ gen_intermediate_code_internal(MicroBlazeCPU *cpu, TranslationBlock *tb,
gen_tb_start(tb);
do
{
#if SIM_COMPAT
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc);
gen_helper_debug();
}
#endif
check_breakpoint(env, dc);
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -1717,6 +1694,19 @@ gen_intermediate_code_internal(MicroBlazeCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(dc->pc);
num_insns++;
#if SIM_COMPAT
if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM)) {
tcg_gen_movi_tl(cpu_SR[SR_PC], dc->pc);
gen_helper_debug();
}
#endif
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
t_gen_raise_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
break;
}
/* Pretty disas. */
LOG_DIS("%8.8x:\t", dc->pc);

25
target-mips/translate.c
View File

@ -19544,7 +19544,6 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
DisasContext ctx;
target_ulong pc_start;
target_ulong next_page_start;
CPUBreakpoint *bp;
int j, lj = -1;
int num_insns;
int max_insns;
@ -19591,20 +19590,6 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
LOG_DISAS("\ntb %p idx %d hflags %04x\n", tb, ctx.mem_idx, ctx.hflags);
gen_tb_start(tb);
while (ctx.bstate == BS_NONE) {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == ctx.pc) {
save_cpu_state(&ctx, 1);
ctx.bstate = BS_BRANCH;
gen_helper_raise_exception_debug(cpu_env);
/* Include the breakpoint location or the tb won't
* be flushed when it must be. */
ctx.pc += 4;
goto done_generating;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -19621,6 +19606,16 @@ gen_intermediate_code_internal(MIPSCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(ctx.pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
save_cpu_state(&ctx, 1);
ctx.bstate = BS_BRANCH;
gen_helper_raise_exception_debug(cpu_env);
/* Include the breakpoint location or the tb won't
* be flushed when it must be. */
ctx.pc += 4;
goto done_generating;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

19
target-moxie/translate.c
View File

@ -822,7 +822,6 @@ gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
CPUState *cs = CPU(cpu);
DisasContext ctx;
target_ulong pc_start;
CPUBreakpoint *bp;
int j, lj = -1;
CPUMoxieState *env = &cpu->env;
int num_insns;
@ -838,17 +837,6 @@ gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
gen_tb_start(tb);
do {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (ctx.pc == bp->pc) {
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug(cpu_env);
ctx.bstate = BS_EXCP;
goto done_generating;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -864,6 +852,13 @@ gen_intermediate_code_internal(MoxieCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(ctx.pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug(cpu_env);
ctx.bstate = BS_EXCP;
goto done_generating;
}
ctx.opcode = cpu_lduw_code(env, ctx.pc);
ctx.pc += decode_opc(cpu, &ctx);

24
target-openrisc/translate.c
View File

@ -1618,22 +1618,6 @@ static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu)
}
}
static void check_breakpoint(OpenRISCCPU *cpu, DisasContext *dc)
{
CPUState *cs = CPU(cpu);
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
tcg_gen_movi_tl(cpu_pc, dc->pc);
gen_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
TranslationBlock *tb,
int search_pc)
@ -1674,7 +1658,6 @@ static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
gen_tb_start(tb);
do {
check_breakpoint(cpu, dc);
if (search_pc) {
j = tcg_op_buf_count();
if (k < j) {
@ -1690,6 +1673,13 @@ static inline void gen_intermediate_code_internal(OpenRISCCPU *cpu,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
tcg_gen_movi_tl(cpu_pc, dc->pc);
gen_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
break;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

14
target-ppc/translate.c
View File

@ -11418,7 +11418,6 @@ static inline void gen_intermediate_code_internal(PowerPCCPU *cpu,
DisasContext ctx, *ctxp = &ctx;
opc_handler_t **table, *handler;
target_ulong pc_start;
CPUBreakpoint *bp;
int j, lj = -1;
int num_insns;
int max_insns;
@ -11483,14 +11482,6 @@ static inline void gen_intermediate_code_internal(PowerPCCPU *cpu,
tcg_clear_temp_count();
/* Set env in case of segfault during code fetch */
while (ctx.exception == POWERPC_EXCP_NONE && !tcg_op_buf_full()) {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == ctx.nip) {
gen_debug_exception(ctxp);
break;
}
}
}
if (unlikely(search_pc)) {
j = tcg_op_buf_count();
if (lj < j) {
@ -11505,6 +11496,11 @@ static inline void gen_intermediate_code_internal(PowerPCCPU *cpu,
tcg_gen_insn_start(ctx.nip);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, ctx.nip, BP_ANY))) {
gen_debug_exception(ctxp);
break;
}
LOG_DISAS("----------------\n");
LOG_DISAS("nip=" TARGET_FMT_lx " super=%d ir=%d\n",
ctx.nip, ctx.mem_idx, (int)msr_ir);

16
target-s390x/translate.c
View File

@ -5330,7 +5330,6 @@ static inline void gen_intermediate_code_internal(S390CPU *cpu,
uint64_t next_page_start;
int j, lj = -1;
int num_insns, max_insns;
CPUBreakpoint *bp;
ExitStatus status;
bool do_debug;
@ -5373,20 +5372,17 @@ static inline void gen_intermediate_code_internal(S390CPU *cpu,
tcg_gen_insn_start(dc.pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc.pc, BP_ANY))) {
status = EXIT_PC_STALE;
do_debug = true;
break;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}
status = NO_EXIT;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc.pc) {
status = EXIT_PC_STALE;
do_debug = true;
break;
}
}
}
if (status == NO_EXIT) {
status = translate_one(env, &dc);
}

20
target-sh4/translate.c
View File

@ -1824,7 +1824,6 @@ gen_intermediate_code_internal(SuperHCPU *cpu, TranslationBlock *tb,
CPUSH4State *env = &cpu->env;
DisasContext ctx;
target_ulong pc_start;
CPUBreakpoint *bp;
int i, ii;
int num_insns;
int max_insns;
@ -1849,17 +1848,6 @@ gen_intermediate_code_internal(SuperHCPU *cpu, TranslationBlock *tb,
max_insns = CF_COUNT_MASK;
gen_tb_start(tb);
while (ctx.bstate == BS_NONE && !tcg_op_buf_full()) {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (ctx.pc == bp->pc) {
/* We have hit a breakpoint - make sure PC is up-to-date */
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug(cpu_env);
ctx.bstate = BS_BRANCH;
break;
}
}
}
if (search_pc) {
i = tcg_op_buf_count();
if (ii < i) {
@ -1875,6 +1863,14 @@ gen_intermediate_code_internal(SuperHCPU *cpu, TranslationBlock *tb,
tcg_gen_insn_start(ctx.pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, ctx.pc, BP_ANY))) {
/* We have hit a breakpoint - make sure PC is up-to-date */
tcg_gen_movi_i32(cpu_pc, ctx.pc);
gen_helper_debug(cpu_env);
ctx.bstate = BS_BRANCH;
break;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

23
target-sparc/translate.c
View File

@ -5217,7 +5217,6 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
CPUSPARCState *env = &cpu->env;
target_ulong pc_start, last_pc;
DisasContext dc1, *dc = &dc1;
CPUBreakpoint *bp;
int j, lj = -1;
int num_insns;
int max_insns;
@ -5242,18 +5241,6 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
max_insns = CF_COUNT_MASK;
gen_tb_start(tb);
do {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
if (dc->pc != pc_start)
save_state(dc);
gen_helper_debug(cpu_env);
tcg_gen_exit_tb(0);
dc->is_br = 1;
goto exit_gen_loop;
}
}
}
if (spc) {
qemu_log("Search PC...\n");
j = tcg_op_buf_count();
@ -5270,6 +5257,16 @@ static inline void gen_intermediate_code_internal(SPARCCPU *cpu,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
if (dc->pc != pc_start) {
save_state(dc);
}
gen_helper_debug(cpu_env);
tcg_gen_exit_tb(0);
dc->is_br = 1;
goto exit_gen_loop;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

24
target-unicore32/translate.c
View File

@ -1872,7 +1872,6 @@ static inline void gen_intermediate_code_internal(UniCore32CPU *cpu,
CPUState *cs = CPU(cpu);
CPUUniCore32State *env = &cpu->env;
DisasContext dc1, *dc = &dc1;
CPUBreakpoint *bp;
int j, lj;
target_ulong pc_start;
uint32_t next_page_start;
@ -1912,19 +1911,6 @@ static inline void gen_intermediate_code_internal(UniCore32CPU *cpu,
gen_tb_start(tb);
do {
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
gen_set_pc_im(dc->pc);
gen_exception(EXCP_DEBUG);
dc->is_jmp = DISAS_JUMP;
/* Advance PC so that clearing the breakpoint will
invalidate this TB. */
dc->pc += 2; /* FIXME */
goto done_generating;
}
}
}
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -1940,6 +1926,16 @@ static inline void gen_intermediate_code_internal(UniCore32CPU *cpu,
tcg_gen_insn_start(dc->pc);
num_insns++;
if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) {
gen_set_pc_im(dc->pc);
gen_exception(EXCP_DEBUG);
dc->is_jmp = DISAS_JUMP;
/* Advance PC so that clearing the breakpoint will
invalidate this TB. */
dc->pc += 2; /* FIXME */
goto done_generating;
}
if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}

25
target-xtensa/translate.c
View File

@ -2984,22 +2984,6 @@ static inline unsigned xtensa_insn_len(CPUXtensaState *env, DisasContext *dc)
return xtensa_op0_insn_len(OP0);
}
static void check_breakpoint(CPUXtensaState *env, DisasContext *dc)
{
CPUState *cs = CPU(xtensa_env_get_cpu(env));
CPUBreakpoint *bp;
if (unlikely(!QTAILQ_EMPTY(&cs->breakpoints))) {
QTAILQ_FOREACH(bp, &cs->breakpoints, entry) {
if (bp->pc == dc->pc) {
tcg_gen_movi_i32(cpu_pc, dc->pc);
gen_exception(dc, EXCP_DEBUG);
dc->is_jmp = DISAS_UPDATE;
}
}
}
}
static void gen_ibreak_check(CPUXtensaState *env, DisasContext *dc)
{
unsigned i;
@ -3062,8 +3046,6 @@ void gen_intermediate_code_internal(XtensaCPU *cpu,
}
do {
check_breakpoint(env, &dc);
if (search_pc) {
j = tcg_op_buf_count();
if (lj < j) {
@ -3081,6 +3063,13 @@ void gen_intermediate_code_internal(XtensaCPU *cpu,
++dc.ccount_delta;
if (unlikely(cpu_breakpoint_test(cs, dc.pc, BP_ANY))) {
tcg_gen_movi_i32(cpu_pc, dc.pc);
gen_exception(&dc, EXCP_DEBUG);
dc.is_jmp = DISAS_UPDATE;
break;
}
if (insn_count == max_insns && (tb->cflags & CF_LAST_IO)) {
gen_io_start();
}