From: Richard Henderson <richard.henderson@linaro.org>
To: qemu-devel@nongnu.org
Cc: peter.maydell@linaro.org, mark.cave-ayland@ilande.co.uk,
alex.bennee@linaro.org, f4bug@amsat.org
Subject: [PATCH for-6.1 v4 13/15] accel/tcg: Remove TranslatorOps.breakpoint_check
Date: Mon, 19 Jul 2021 11:22:37 -1000 [thread overview]
Message-ID: <20210719212239.428740-14-richard.henderson@linaro.org> (raw)
In-Reply-To: <20210719212239.428740-1-richard.henderson@linaro.org>
The hook is now unused, with breakpoints checked outside translation.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
include/exec/translator.h | 11 -----------
target/alpha/translate.c | 16 ----------------
target/arm/translate-a64.c | 25 -------------------------
target/arm/translate.c | 29 -----------------------------
target/avr/translate.c | 10 ----------
target/cris/translate.c | 20 --------------------
target/hexagon/translate.c | 17 -----------------
target/hppa/translate.c | 11 -----------
target/i386/tcg/translate.c | 28 ----------------------------
target/m68k/translate.c | 18 ------------------
target/microblaze/translate.c | 18 ------------------
target/mips/tcg/translate.c | 19 -------------------
target/nios2/translate.c | 27 ---------------------------
target/openrisc/translate.c | 17 -----------------
target/ppc/translate.c | 18 ------------------
target/riscv/translate.c | 17 -----------------
target/rx/translate.c | 14 --------------
target/s390x/tcg/translate.c | 24 ------------------------
target/sh4/translate.c | 18 ------------------
target/sparc/translate.c | 17 -----------------
target/tricore/translate.c | 16 ----------------
target/xtensa/translate.c | 17 -----------------
22 files changed, 407 deletions(-)
diff --git a/include/exec/translator.h b/include/exec/translator.h
index dd9c06d40d..d318803267 100644
--- a/include/exec/translator.h
+++ b/include/exec/translator.h
@@ -89,15 +89,6 @@ typedef struct DisasContextBase {
* @insn_start:
* Emit the tcg_gen_insn_start opcode.
*
- * @breakpoint_check:
- * When called, the breakpoint has already been checked to match the PC,
- * but the target may decide the breakpoint missed the address
- * (e.g., due to conditions encoded in their flags). Return true to
- * indicate that the breakpoint did hit, in which case no more breakpoints
- * are checked. If the breakpoint did hit, emit any code required to
- * signal the exception, and set db->is_jmp as necessary to terminate
- * the main loop.
- *
* @translate_insn:
* Disassemble one instruction and set db->pc_next for the start
* of the following instruction. Set db->is_jmp as necessary to
@@ -113,8 +104,6 @@ typedef struct TranslatorOps {
void (*init_disas_context)(DisasContextBase *db, CPUState *cpu);
void (*tb_start)(DisasContextBase *db, CPUState *cpu);
void (*insn_start)(DisasContextBase *db, CPUState *cpu);
- bool (*breakpoint_check)(DisasContextBase *db, CPUState *cpu,
- const CPUBreakpoint *bp);
void (*translate_insn)(DisasContextBase *db, CPUState *cpu);
void (*tb_stop)(DisasContextBase *db, CPUState *cpu);
void (*disas_log)(const DisasContextBase *db, CPUState *cpu);
diff --git a/target/alpha/translate.c b/target/alpha/translate.c
index 949ba6ffde..de6c0a8439 100644
--- a/target/alpha/translate.c
+++ b/target/alpha/translate.c
@@ -2967,21 +2967,6 @@ static void alpha_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(dcbase->pc_next);
}
-static bool alpha_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- ctx->base.is_jmp = gen_excp(ctx, EXCP_DEBUG, 0);
-
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- ctx->base.pc_next += 4;
- return true;
-}
-
static void alpha_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
@@ -3040,7 +3025,6 @@ static const TranslatorOps alpha_tr_ops = {
.init_disas_context = alpha_tr_init_disas_context,
.tb_start = alpha_tr_tb_start,
.insn_start = alpha_tr_insn_start,
- .breakpoint_check = alpha_tr_breakpoint_check,
.translate_insn = alpha_tr_translate_insn,
.tb_stop = alpha_tr_tb_stop,
.disas_log = alpha_tr_disas_log,
diff --git a/target/arm/translate-a64.c b/target/arm/translate-a64.c
index ca11a5fecd..422e2ac0c9 100644
--- a/target/arm/translate-a64.c
+++ b/target/arm/translate-a64.c
@@ -14844,30 +14844,6 @@ static void aarch64_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
dc->insn_start = tcg_last_op();
}
-static bool aarch64_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- if (bp->flags & BP_CPU) {
- gen_a64_set_pc_im(dc->base.pc_next);
- gen_helper_check_breakpoints(cpu_env);
- /* End the TB early; it likely won't be executed */
- dc->base.is_jmp = DISAS_TOO_MANY;
- } else {
- gen_exception_internal_insn(dc, dc->base.pc_next, EXCP_DEBUG);
- /* The address covered by the breakpoint must be
- included in [tb->pc, tb->pc + tb->size) in order
- to for it to be properly cleared -- thus we
- increment the PC here so that the logic setting
- tb->size below does the right thing. */
- dc->base.pc_next += 4;
- dc->base.is_jmp = DISAS_NORETURN;
- }
-
- return true;
-}
-
static void aarch64_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -14982,7 +14958,6 @@ const TranslatorOps aarch64_translator_ops = {
.init_disas_context = aarch64_tr_init_disas_context,
.tb_start = aarch64_tr_tb_start,
.insn_start = aarch64_tr_insn_start,
- .breakpoint_check = aarch64_tr_breakpoint_check,
.translate_insn = aarch64_tr_translate_insn,
.tb_stop = aarch64_tr_tb_stop,
.disas_log = aarch64_tr_disas_log,
diff --git a/target/arm/translate.c b/target/arm/translate.c
index e1a8152598..351afa43a2 100644
--- a/target/arm/translate.c
+++ b/target/arm/translate.c
@@ -9438,33 +9438,6 @@ static void arm_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
dc->insn_start = tcg_last_op();
}
-static bool arm_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- if (bp->flags & BP_CPU) {
- gen_set_condexec(dc);
- gen_set_pc_im(dc, dc->base.pc_next);
- gen_helper_check_breakpoints(cpu_env);
- /* End the TB early; it's likely not going to be executed */
- dc->base.is_jmp = DISAS_TOO_MANY;
- } else {
- gen_exception_internal_insn(dc, dc->base.pc_next, EXCP_DEBUG);
- /* The address covered by the breakpoint must be
- included in [tb->pc, tb->pc + tb->size) in order
- to for it to be properly cleared -- thus we
- increment the PC here so that the logic setting
- tb->size below does the right thing. */
- /* TODO: Advance PC by correct instruction length to
- * avoid disassembler error messages */
- dc->base.pc_next += 2;
- dc->base.is_jmp = DISAS_NORETURN;
- }
-
- return true;
-}
-
static bool arm_pre_translate_insn(DisasContext *dc)
{
#ifdef CONFIG_USER_ONLY
@@ -9827,7 +9800,6 @@ static const TranslatorOps arm_translator_ops = {
.init_disas_context = arm_tr_init_disas_context,
.tb_start = arm_tr_tb_start,
.insn_start = arm_tr_insn_start,
- .breakpoint_check = arm_tr_breakpoint_check,
.translate_insn = arm_tr_translate_insn,
.tb_stop = arm_tr_tb_stop,
.disas_log = arm_tr_disas_log,
@@ -9837,7 +9809,6 @@ static const TranslatorOps thumb_translator_ops = {
.init_disas_context = arm_tr_init_disas_context,
.tb_start = arm_tr_tb_start,
.insn_start = arm_tr_insn_start,
- .breakpoint_check = arm_tr_breakpoint_check,
.translate_insn = thumb_tr_translate_insn,
.tb_stop = arm_tr_tb_stop,
.disas_log = arm_tr_disas_log,
diff --git a/target/avr/translate.c b/target/avr/translate.c
index 8237a03c23..3055e84483 100644
--- a/target/avr/translate.c
+++ b/target/avr/translate.c
@@ -2944,15 +2944,6 @@ static void avr_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(ctx->npc);
}
-static bool avr_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- gen_breakpoint(ctx);
- return true;
-}
-
static void avr_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
@@ -3069,7 +3060,6 @@ static const TranslatorOps avr_tr_ops = {
.init_disas_context = avr_tr_init_disas_context,
.tb_start = avr_tr_tb_start,
.insn_start = avr_tr_insn_start,
- .breakpoint_check = avr_tr_breakpoint_check,
.translate_insn = avr_tr_translate_insn,
.tb_stop = avr_tr_tb_stop,
.disas_log = avr_tr_disas_log,
diff --git a/target/cris/translate.c b/target/cris/translate.c
index 9258c13e9f..a84b753349 100644
--- a/target/cris/translate.c
+++ b/target/cris/translate.c
@@ -3118,25 +3118,6 @@ static void cris_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(dc->delayed_branch == 1 ? dc->ppc | 1 : dc->pc);
}
-static bool cris_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- cris_evaluate_flags(dc);
- tcg_gen_movi_tl(env_pc, dc->pc);
- t_gen_raise_exception(EXCP_DEBUG);
- dc->base.is_jmp = DISAS_NORETURN;
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- dc->pc += 2;
- return true;
-}
-
static void cris_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -3315,7 +3296,6 @@ static const TranslatorOps cris_tr_ops = {
.init_disas_context = cris_tr_init_disas_context,
.tb_start = cris_tr_tb_start,
.insn_start = cris_tr_insn_start,
- .breakpoint_check = cris_tr_breakpoint_check,
.translate_insn = cris_tr_translate_insn,
.tb_stop = cris_tr_tb_stop,
.disas_log = cris_tr_disas_log,
diff --git a/target/hexagon/translate.c b/target/hexagon/translate.c
index b23d36adf5..54fdcaa5e8 100644
--- a/target/hexagon/translate.c
+++ b/target/hexagon/translate.c
@@ -540,22 +540,6 @@ static void hexagon_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(ctx->base.pc_next);
}
-static bool hexagon_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- gen_exception_end_tb(ctx, EXCP_DEBUG);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- ctx->base.pc_next += 4;
- return true;
-}
-
static bool pkt_crosses_page(CPUHexagonState *env, DisasContext *ctx)
{
target_ulong page_start = ctx->base.pc_first & TARGET_PAGE_MASK;
@@ -631,7 +615,6 @@ static const TranslatorOps hexagon_tr_ops = {
.init_disas_context = hexagon_tr_init_disas_context,
.tb_start = hexagon_tr_tb_start,
.insn_start = hexagon_tr_insn_start,
- .breakpoint_check = hexagon_tr_breakpoint_check,
.translate_insn = hexagon_tr_translate_packet,
.tb_stop = hexagon_tr_tb_stop,
.disas_log = hexagon_tr_disas_log,
diff --git a/target/hppa/translate.c b/target/hppa/translate.c
index 2552747138..b18150ef8d 100644
--- a/target/hppa/translate.c
+++ b/target/hppa/translate.c
@@ -4159,16 +4159,6 @@ static void hppa_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(ctx->iaoq_f, ctx->iaoq_b);
}
-static bool hppa_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- gen_excp(ctx, EXCP_DEBUG);
- ctx->base.pc_next += 4;
- return true;
-}
-
static void hppa_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
@@ -4330,7 +4320,6 @@ static const TranslatorOps hppa_tr_ops = {
.init_disas_context = hppa_tr_init_disas_context,
.tb_start = hppa_tr_tb_start,
.insn_start = hppa_tr_insn_start,
- .breakpoint_check = hppa_tr_breakpoint_check,
.translate_insn = hppa_tr_translate_insn,
.tb_stop = hppa_tr_tb_stop,
.disas_log = hppa_tr_disas_log,
diff --git a/target/i386/tcg/translate.c b/target/i386/tcg/translate.c
index 8520d5a1e2..aacb605eee 100644
--- a/target/i386/tcg/translate.c
+++ b/target/i386/tcg/translate.c
@@ -2604,14 +2604,6 @@ static void gen_interrupt(DisasContext *s, int intno,
s->base.is_jmp = DISAS_NORETURN;
}
-static void gen_debug(DisasContext *s)
-{
- gen_update_cc_op(s);
- gen_jmp_im(s, s->base.pc_next - s->cs_base);
- gen_helper_debug(cpu_env);
- s->base.is_jmp = DISAS_NORETURN;
-}
-
static void gen_set_hflag(DisasContext *s, uint32_t mask)
{
if ((s->flags & mask) == 0) {
@@ -8635,25 +8627,6 @@ static void i386_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(dc->base.pc_next, dc->cc_op);
}
-static bool i386_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
- /* If RF is set, suppress an internally generated breakpoint. */
- int flags = dc->base.tb->flags & HF_RF_MASK ? BP_GDB : BP_ANY;
- if (bp->flags & flags) {
- gen_debug(dc);
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the generic logic setting tb->size later does the right thing. */
- dc->base.pc_next += 1;
- return true;
- } else {
- return false;
- }
-}
-
static void i386_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -8721,7 +8694,6 @@ static const TranslatorOps i386_tr_ops = {
.init_disas_context = i386_tr_init_disas_context,
.tb_start = i386_tr_tb_start,
.insn_start = i386_tr_insn_start,
- .breakpoint_check = i386_tr_breakpoint_check,
.translate_insn = i386_tr_translate_insn,
.tb_stop = i386_tr_tb_stop,
.disas_log = i386_tr_disas_log,
diff --git a/target/m68k/translate.c b/target/m68k/translate.c
index 1fee04b8dd..c34d9aed61 100644
--- a/target/m68k/translate.c
+++ b/target/m68k/translate.c
@@ -6208,23 +6208,6 @@ static void m68k_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(dc->base.pc_next, dc->cc_op);
}
-static bool m68k_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- gen_exception(dc, dc->base.pc_next, EXCP_DEBUG);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- dc->base.pc_next += 2;
-
- return true;
-}
-
static void m68k_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -6310,7 +6293,6 @@ static const TranslatorOps m68k_tr_ops = {
.init_disas_context = m68k_tr_init_disas_context,
.tb_start = m68k_tr_tb_start,
.insn_start = m68k_tr_insn_start,
- .breakpoint_check = m68k_tr_breakpoint_check,
.translate_insn = m68k_tr_translate_insn,
.tb_stop = m68k_tr_tb_stop,
.disas_log = m68k_tr_disas_log,
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c
index c68a84a219..a14ffed784 100644
--- a/target/microblaze/translate.c
+++ b/target/microblaze/translate.c
@@ -1673,23 +1673,6 @@ static void mb_tr_insn_start(DisasContextBase *dcb, CPUState *cs)
dc->insn_start = tcg_last_op();
}
-static bool mb_tr_breakpoint_check(DisasContextBase *dcb, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcb, DisasContext, base);
-
- gen_raise_exception_sync(dc, EXCP_DEBUG);
-
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- dc->base.pc_next += 4;
- return true;
-}
-
static void mb_tr_translate_insn(DisasContextBase *dcb, CPUState *cs)
{
DisasContext *dc = container_of(dcb, DisasContext, base);
@@ -1854,7 +1837,6 @@ static const TranslatorOps mb_tr_ops = {
.init_disas_context = mb_tr_init_disas_context,
.tb_start = mb_tr_tb_start,
.insn_start = mb_tr_insn_start,
- .breakpoint_check = mb_tr_breakpoint_check,
.translate_insn = mb_tr_translate_insn,
.tb_stop = mb_tr_tb_stop,
.disas_log = mb_tr_disas_log,
diff --git a/target/mips/tcg/translate.c b/target/mips/tcg/translate.c
index fd980ea966..5b03545f09 100644
--- a/target/mips/tcg/translate.c
+++ b/target/mips/tcg/translate.c
@@ -16178,24 +16178,6 @@ static void mips_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
ctx->btarget);
}
-static bool mips_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- save_cpu_state(ctx, 1);
- ctx->base.is_jmp = DISAS_NORETURN;
- gen_helper_raise_exception_debug(cpu_env);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- ctx->base.pc_next += 4;
- return true;
-}
-
static void mips_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
CPUMIPSState *env = cs->env_ptr;
@@ -16303,7 +16285,6 @@ static const TranslatorOps mips_tr_ops = {
.init_disas_context = mips_tr_init_disas_context,
.tb_start = mips_tr_tb_start,
.insn_start = mips_tr_insn_start,
- .breakpoint_check = mips_tr_breakpoint_check,
.translate_insn = mips_tr_translate_insn,
.tb_stop = mips_tr_tb_stop,
.disas_log = mips_tr_disas_log,
diff --git a/target/nios2/translate.c b/target/nios2/translate.c
index 17742cebc7..08d7ac5398 100644
--- a/target/nios2/translate.c
+++ b/target/nios2/translate.c
@@ -744,16 +744,6 @@ static const char * const regnames[] = {
#include "exec/gen-icount.h"
-static void gen_exception(DisasContext *dc, uint32_t excp)
-{
- TCGv_i32 tmp = tcg_const_i32(excp);
-
- tcg_gen_movi_tl(cpu_R[R_PC], dc->pc);
- gen_helper_raise_exception(cpu_env, tmp);
- tcg_temp_free_i32(tmp);
- dc->base.is_jmp = DISAS_NORETURN;
-}
-
/* generate intermediate code for basic block 'tb'. */
static void nios2_tr_init_disas_context(DisasContextBase *dcbase, CPUState *cs)
{
@@ -777,22 +767,6 @@ static void nios2_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(dcbase->pc_next);
}
-static bool nios2_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- gen_exception(dc, EXCP_DEBUG);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- dc->base.pc_next += 4;
- return true;
-}
-
static void nios2_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -870,7 +844,6 @@ static const TranslatorOps nios2_tr_ops = {
.init_disas_context = nios2_tr_init_disas_context,
.tb_start = nios2_tr_tb_start,
.insn_start = nios2_tr_insn_start,
- .breakpoint_check = nios2_tr_breakpoint_check,
.translate_insn = nios2_tr_translate_insn,
.tb_stop = nios2_tr_tb_stop,
.disas_log = nios2_tr_disas_log,
diff --git a/target/openrisc/translate.c b/target/openrisc/translate.c
index 059da48475..d6ea536744 100644
--- a/target/openrisc/translate.c
+++ b/target/openrisc/translate.c
@@ -1609,22 +1609,6 @@ static void openrisc_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
| (dc->base.num_insns > 1 ? 2 : 0));
}
-static bool openrisc_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- tcg_gen_movi_tl(cpu_pc, dc->base.pc_next);
- gen_exception(dc, EXCP_DEBUG);
- dc->base.is_jmp = DISAS_NORETURN;
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- dc->base.pc_next += 4;
- return true;
-}
-
static void openrisc_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -1727,7 +1711,6 @@ static const TranslatorOps openrisc_tr_ops = {
.init_disas_context = openrisc_tr_init_disas_context,
.tb_start = openrisc_tr_tb_start,
.insn_start = openrisc_tr_insn_start,
- .breakpoint_check = openrisc_tr_breakpoint_check,
.translate_insn = openrisc_tr_translate_insn,
.tb_stop = openrisc_tr_tb_stop,
.disas_log = openrisc_tr_disas_log,
diff --git a/target/ppc/translate.c b/target/ppc/translate.c
index 0a55cb7181..171b216e17 100644
--- a/target/ppc/translate.c
+++ b/target/ppc/translate.c
@@ -8565,23 +8565,6 @@ static void ppc_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(dcbase->pc_next);
}
-static bool ppc_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- gen_update_nip(ctx, ctx->base.pc_next);
- gen_debug_exception(ctx);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be properly
- * cleared -- thus we increment the PC here so that the logic
- * setting tb->size below does the right thing.
- */
- ctx->base.pc_next += 4;
- return true;
-}
-
static bool is_prefix_insn(DisasContext *ctx, uint32_t insn)
{
REQUIRE_INSNS_FLAGS2(ctx, ISA310);
@@ -8710,7 +8693,6 @@ static const TranslatorOps ppc_tr_ops = {
.init_disas_context = ppc_tr_init_disas_context,
.tb_start = ppc_tr_tb_start,
.insn_start = ppc_tr_insn_start,
- .breakpoint_check = ppc_tr_breakpoint_check,
.translate_insn = ppc_tr_translate_insn,
.tb_stop = ppc_tr_tb_stop,
.disas_log = ppc_tr_disas_log,
diff --git a/target/riscv/translate.c b/target/riscv/translate.c
index deda0c8a44..6983be5723 100644
--- a/target/riscv/translate.c
+++ b/target/riscv/translate.c
@@ -961,22 +961,6 @@ static void riscv_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(ctx->base.pc_next);
}
-static bool riscv_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- tcg_gen_movi_tl(cpu_pc, ctx->base.pc_next);
- ctx->base.is_jmp = DISAS_NORETURN;
- gen_exception_debug();
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- ctx->base.pc_next += 4;
- return true;
-}
-
static void riscv_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
@@ -1029,7 +1013,6 @@ static const TranslatorOps riscv_tr_ops = {
.init_disas_context = riscv_tr_init_disas_context,
.tb_start = riscv_tr_tb_start,
.insn_start = riscv_tr_insn_start,
- .breakpoint_check = riscv_tr_breakpoint_check,
.translate_insn = riscv_tr_translate_insn,
.tb_stop = riscv_tr_tb_stop,
.disas_log = riscv_tr_disas_log,
diff --git a/target/rx/translate.c b/target/rx/translate.c
index 23a626438a..a3cf720455 100644
--- a/target/rx/translate.c
+++ b/target/rx/translate.c
@@ -2309,19 +2309,6 @@ static void rx_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(ctx->base.pc_next);
}
-static bool rx_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- /* We have hit a breakpoint - make sure PC is up-to-date */
- tcg_gen_movi_i32(cpu_pc, ctx->base.pc_next);
- gen_helper_debug(cpu_env);
- ctx->base.is_jmp = DISAS_NORETURN;
- ctx->base.pc_next += 1;
- return true;
-}
-
static void rx_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *ctx = container_of(dcbase, DisasContext, base);
@@ -2373,7 +2360,6 @@ static const TranslatorOps rx_tr_ops = {
.init_disas_context = rx_tr_init_disas_context,
.tb_start = rx_tr_tb_start,
.insn_start = rx_tr_insn_start,
- .breakpoint_check = rx_tr_breakpoint_check,
.translate_insn = rx_tr_translate_insn,
.tb_stop = rx_tr_tb_stop,
.disas_log = rx_tr_disas_log,
diff --git a/target/s390x/tcg/translate.c b/target/s390x/tcg/translate.c
index 92fa7656c2..0632b0374b 100644
--- a/target/s390x/tcg/translate.c
+++ b/target/s390x/tcg/translate.c
@@ -6552,29 +6552,6 @@ static void s390x_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
{
}
-static bool s390x_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- /*
- * Emit an insn_start to accompany the breakpoint exception.
- * The ILEN value is a dummy, since this does not result in
- * an s390x exception, but an internal qemu exception which
- * brings us back to interact with the gdbstub.
- */
- tcg_gen_insn_start(dc->base.pc_next, dc->cc_op, 2);
-
- dc->base.is_jmp = DISAS_PC_STALE;
- dc->do_debug = true;
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size does the right thing. */
- dc->base.pc_next += 2;
- return true;
-}
-
static void s390x_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
CPUS390XState *env = cs->env_ptr;
@@ -6642,7 +6619,6 @@ static const TranslatorOps s390x_tr_ops = {
.init_disas_context = s390x_tr_init_disas_context,
.tb_start = s390x_tr_tb_start,
.insn_start = s390x_tr_insn_start,
- .breakpoint_check = s390x_tr_breakpoint_check,
.translate_insn = s390x_tr_translate_insn,
.tb_stop = s390x_tr_tb_stop,
.disas_log = s390x_tr_disas_log,
diff --git a/target/sh4/translate.c b/target/sh4/translate.c
index 40898e2393..8704fea1ca 100644
--- a/target/sh4/translate.c
+++ b/target/sh4/translate.c
@@ -2289,23 +2289,6 @@ static void sh4_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
tcg_gen_insn_start(ctx->base.pc_next, ctx->envflags);
}
-static bool sh4_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
-
- /* We have hit a breakpoint - make sure PC is up-to-date */
- gen_save_cpu_state(ctx, true);
- gen_helper_debug(cpu_env);
- ctx->base.is_jmp = DISAS_NORETURN;
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- ctx->base.pc_next += 2;
- return true;
-}
-
static void sh4_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
CPUSH4State *env = cs->env_ptr;
@@ -2369,7 +2352,6 @@ static const TranslatorOps sh4_tr_ops = {
.init_disas_context = sh4_tr_init_disas_context,
.tb_start = sh4_tr_tb_start,
.insn_start = sh4_tr_insn_start,
- .breakpoint_check = sh4_tr_breakpoint_check,
.translate_insn = sh4_tr_translate_insn,
.tb_stop = sh4_tr_tb_stop,
.disas_log = sh4_tr_disas_log,
diff --git a/target/sparc/translate.c b/target/sparc/translate.c
index e530cb4aa8..11de5a4963 100644
--- a/target/sparc/translate.c
+++ b/target/sparc/translate.c
@@ -5854,22 +5854,6 @@ static void sparc_tr_insn_start(DisasContextBase *dcbase, CPUState *cs)
}
}
-static bool sparc_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cs,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- if (dc->pc != dc->base.pc_first) {
- save_state(dc);
- }
- gen_helper_debug(cpu_env);
- tcg_gen_exit_tb(NULL, 0);
- dc->base.is_jmp = DISAS_NORETURN;
- /* update pc_next so that the current instruction is included in tb->size */
- dc->base.pc_next += 4;
- return true;
-}
-
static void sparc_tr_translate_insn(DisasContextBase *dcbase, CPUState *cs)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -5932,7 +5916,6 @@ static const TranslatorOps sparc_tr_ops = {
.init_disas_context = sparc_tr_init_disas_context,
.tb_start = sparc_tr_tb_start,
.insn_start = sparc_tr_insn_start,
- .breakpoint_check = sparc_tr_breakpoint_check,
.translate_insn = sparc_tr_translate_insn,
.tb_stop = sparc_tr_tb_stop,
.disas_log = sparc_tr_disas_log,
diff --git a/target/tricore/translate.c b/target/tricore/translate.c
index 865020754d..a0cc0f1cb3 100644
--- a/target/tricore/translate.c
+++ b/target/tricore/translate.c
@@ -8810,21 +8810,6 @@ static void tricore_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(ctx->base.pc_next);
}
-static bool tricore_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *ctx = container_of(dcbase, DisasContext, base);
- generate_qemu_excp(ctx, EXCP_DEBUG);
- /*
- * The address covered by the breakpoint must be included in
- * [tb->pc, tb->pc + tb->size) in order to for it to be
- * properly cleared -- thus we increment the PC here so that
- * the logic setting tb->size below does the right thing.
- */
- ctx->base.pc_next += 4;
- return true;
-}
-
static bool insn_crosses_page(CPUTriCoreState *env, DisasContext *ctx)
{
/*
@@ -8898,7 +8883,6 @@ static const TranslatorOps tricore_tr_ops = {
.init_disas_context = tricore_tr_init_disas_context,
.tb_start = tricore_tr_tb_start,
.insn_start = tricore_tr_insn_start,
- .breakpoint_check = tricore_tr_breakpoint_check,
.translate_insn = tricore_tr_translate_insn,
.tb_stop = tricore_tr_tb_stop,
.disas_log = tricore_tr_disas_log,
diff --git a/target/xtensa/translate.c b/target/xtensa/translate.c
index 7094cfcf1d..20399d6a04 100644
--- a/target/xtensa/translate.c
+++ b/target/xtensa/translate.c
@@ -1232,22 +1232,6 @@ static void xtensa_tr_insn_start(DisasContextBase *dcbase, CPUState *cpu)
tcg_gen_insn_start(dcbase->pc_next);
}
-static bool xtensa_tr_breakpoint_check(DisasContextBase *dcbase, CPUState *cpu,
- const CPUBreakpoint *bp)
-{
- DisasContext *dc = container_of(dcbase, DisasContext, base);
-
- tcg_gen_movi_i32(cpu_pc, dc->base.pc_next);
- gen_exception(dc, EXCP_DEBUG);
- dc->base.is_jmp = DISAS_NORETURN;
- /* The address covered by the breakpoint must be included in
- [tb->pc, tb->pc + tb->size) in order to for it to be
- properly cleared -- thus we increment the PC here so that
- the logic setting tb->size below does the right thing. */
- dc->base.pc_next += 2;
- return true;
-}
-
static void xtensa_tr_translate_insn(DisasContextBase *dcbase, CPUState *cpu)
{
DisasContext *dc = container_of(dcbase, DisasContext, base);
@@ -1330,7 +1314,6 @@ static const TranslatorOps xtensa_translator_ops = {
.init_disas_context = xtensa_tr_init_disas_context,
.tb_start = xtensa_tr_tb_start,
.insn_start = xtensa_tr_insn_start,
- .breakpoint_check = xtensa_tr_breakpoint_check,
.translate_insn = xtensa_tr_translate_insn,
.tb_stop = xtensa_tr_tb_stop,
.disas_log = xtensa_tr_disas_log,
--
2.25.1
next prev parent reply other threads:[~2021-07-19 21:35 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-07-19 21:22 [PATCH for-6.1 v4 00/15] tcg: breakpoint reorg Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 01/15] accel/tcg: Reduce CF_COUNT_MASK to match TCG_MAX_INSNS Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 02/15] accel/tcg: Move curr_cflags into cpu-exec.c Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 03/15] target/alpha: Drop goto_tb path in gen_call_pal Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 04/15] accel/tcg: Add CF_NO_GOTO_TB and CF_NO_GOTO_PTR Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 05/15] accel/tcg: Drop CF_NO_GOTO_PTR from -d nochain Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 06/15] accel/tcg: Handle -singlestep in curr_cflags Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 07/15] accel/tcg: Use CF_NO_GOTO_{TB, PTR} in cpu_exec_step_atomic Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 08/15] accel/tcg: Move cflags lookup into tb_find Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 09/15] hw/core: Introduce TCGCPUOps.debug_check_breakpoint Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 10/15] target/arm: Implement debug_check_breakpoint Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 11/15] target/i386: " Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 12/15] accel/tcg: Move breakpoint recognition outside translation Richard Henderson
2021-07-19 21:22 ` Richard Henderson [this message]
2021-07-19 21:22 ` [PATCH for-6.1 v4 14/15] accel/tcg: Hoist tb_cflags to a local in translator_loop Richard Henderson
2021-07-19 21:22 ` [PATCH for-6.1 v4 15/15] accel/tcg: Record singlestep_enabled in tb->cflags Richard Henderson
2021-07-19 21:45 ` Richard Henderson
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