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That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, Thomas Huth , =?utf-8?q?Al?= =?utf-8?q?ex_Benn=C3=A9e?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" Instead of creating GStrings and passing them into log_disas, just print the annotations directly in tb_gen_code. Fix the annotations for the slow paths of the TB, after the part implementing the final guest instruction. Reviewed-by: Thomas Huth Reviewed-by: Alex Bennée Signed-off-by: Richard Henderson --- include/disas/disas.h | 2 +- include/exec/log.h | 4 ++-- accel/tcg/translate-all.c | 24 +++++++++++++++--------- disas.c | 29 +++++++++-------------------- tcg/tcg.c | 4 ++-- 5 files changed, 29 insertions(+), 34 deletions(-) diff --git a/include/disas/disas.h b/include/disas/disas.h index 1b6e035e32..36c33f6f19 100644 --- a/include/disas/disas.h +++ b/include/disas/disas.h @@ -7,7 +7,7 @@ #include "cpu.h" /* Disassemble this for me please... (debugging). */ -void disas(FILE *out, void *code, unsigned long size, const char *note); +void disas(FILE *out, void *code, unsigned long size); void target_disas(FILE *out, CPUState *cpu, target_ulong code, target_ulong size); diff --git a/include/exec/log.h b/include/exec/log.h index 3ed797c1c8..fcc7b9e00b 100644 --- a/include/exec/log.h +++ b/include/exec/log.h @@ -56,13 +56,13 @@ static inline void log_target_disas(CPUState *cpu, target_ulong start, rcu_read_unlock(); } -static inline void log_disas(void *code, unsigned long size, const char *note) +static inline void log_disas(void *code, unsigned long size) { QemuLogFile *logfile; rcu_read_lock(); logfile = atomic_rcu_read(&qemu_logfile); if (logfile) { - disas(logfile->fd, code, size, note); + disas(logfile->fd, code, size); } rcu_read_unlock(); } diff --git a/accel/tcg/translate-all.c b/accel/tcg/translate-all.c index 2d83013633..2874104a6a 100644 --- a/accel/tcg/translate-all.c +++ b/accel/tcg/translate-all.c @@ -1815,10 +1815,9 @@ TranslationBlock *tb_gen_code(CPUState *cpu, qemu_log_in_addr_range(tb->pc)) { FILE *logfile = qemu_log_lock(); int code_size, data_size = 0; - g_autoptr(GString) note = g_string_new("[tb header & initial instruction]"); - size_t chunk_start = 0; + size_t chunk_start; int insn = 0; - qemu_log("OUT: [size=%d]\n", gen_code_size); + if (tcg_ctx->data_gen_ptr) { code_size = tcg_ctx->data_gen_ptr - tb->tc.ptr; data_size = gen_code_size - code_size; @@ -1827,26 +1826,33 @@ TranslationBlock *tb_gen_code(CPUState *cpu, } /* Dump header and the first instruction */ + qemu_log("OUT: [size=%d]\n", gen_code_size); + qemu_log(" -- guest addr 0x" TARGET_FMT_lx " + tb prologue\n", + tcg_ctx->gen_insn_data[insn][0]); chunk_start = tcg_ctx->gen_insn_end_off[insn]; - log_disas(tb->tc.ptr, chunk_start, note->str); + log_disas(tb->tc.ptr, chunk_start); /* * Dump each instruction chunk, wrapping up empty chunks into * the next instruction. The whole array is offset so the * first entry is the beginning of the 2nd instruction. */ - while (insn <= tb->icount && chunk_start < code_size) { + while (insn < tb->icount) { size_t chunk_end = tcg_ctx->gen_insn_end_off[insn]; if (chunk_end > chunk_start) { - g_string_printf(note, "[guest addr: " TARGET_FMT_lx "]", - tcg_ctx->gen_insn_data[insn][0]); - log_disas(tb->tc.ptr + chunk_start, chunk_end - chunk_start, - note->str); + qemu_log(" -- guest addr 0x" TARGET_FMT_lx "\n", + tcg_ctx->gen_insn_data[insn][0]); + log_disas(tb->tc.ptr + chunk_start, chunk_end - chunk_start); chunk_start = chunk_end; } insn++; } + if (chunk_start < code_size) { + qemu_log(" -- tb slow paths + alignment\n"); + log_disas(tb->tc.ptr + chunk_start, code_size - chunk_start); + } + /* Finally dump any data we may have after the block */ if (data_size) { int i; diff --git a/disas.c b/disas.c index c1397d3933..a4304e8137 100644 --- a/disas.c +++ b/disas.c @@ -262,8 +262,7 @@ static void cap_dump_insn_units(disassemble_info *info, cs_insn *insn, } } -static void cap_dump_insn(disassemble_info *info, cs_insn *insn, - const char *note) +static void cap_dump_insn(disassemble_info *info, cs_insn *insn) { fprintf_function print = info->fprintf_func; int i, n, split; @@ -284,11 +283,7 @@ static void cap_dump_insn(disassemble_info *info, cs_insn *insn, } /* Print the actual instruction. */ - print(info->stream, " %-8s %s", insn->mnemonic, insn->op_str); - if (note) { - print(info->stream, "\t\t%s", note); - } - print(info->stream, "\n"); + print(info->stream, " %-8s %s\n", insn->mnemonic, insn->op_str); /* Dump any remaining part of the insn on subsequent lines. */ for (i = split; i < n; i += split) { @@ -320,7 +315,7 @@ static bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size) size -= tsize; while (cs_disasm_iter(handle, &cbuf, &csize, &pc, insn)) { - cap_dump_insn(info, insn, NULL); + cap_dump_insn(info, insn); } /* If the target memory is not consumed, go back for more... */ @@ -349,8 +344,7 @@ static bool cap_disas_target(disassemble_info *info, uint64_t pc, size_t size) } /* Disassemble SIZE bytes at CODE for the host. */ -static bool cap_disas_host(disassemble_info *info, void *code, size_t size, - const char *note) +static bool cap_disas_host(disassemble_info *info, void *code, size_t size) { csh handle; const uint8_t *cbuf; @@ -366,8 +360,7 @@ static bool cap_disas_host(disassemble_info *info, void *code, size_t size, pc = (uintptr_t)code; while (cs_disasm_iter(handle, &cbuf, &size, &pc, insn)) { - cap_dump_insn(info, insn, note); - note = NULL; + cap_dump_insn(info, insn); } if (size != 0) { (*info->fprintf_func)(info->stream, @@ -411,7 +404,7 @@ static bool cap_disas_monitor(disassemble_info *info, uint64_t pc, int count) csize += tsize; if (cs_disasm_iter(handle, &cbuf, &csize, &pc, insn)) { - cap_dump_insn(info, insn, NULL); + cap_dump_insn(info, insn); if (--count <= 0) { break; } @@ -425,7 +418,7 @@ static bool cap_disas_monitor(disassemble_info *info, uint64_t pc, int count) #endif /* !CONFIG_USER_ONLY */ #else # define cap_disas_target(i, p, s) false -# define cap_disas_host(i, p, s, n) false +# define cap_disas_host(i, p, s) false # define cap_disas_monitor(i, p, c) false # define cap_disas_plugin(i, p, c) false #endif /* CONFIG_CAPSTONE */ @@ -595,7 +588,7 @@ char *plugin_disas(CPUState *cpu, uint64_t addr, size_t size) } /* Disassemble this for me please... (debugging). */ -void disas(FILE *out, void *code, unsigned long size, const char *note) +void disas(FILE *out, void *code, unsigned long size) { uintptr_t pc; int count; @@ -673,7 +666,7 @@ void disas(FILE *out, void *code, unsigned long size, const char *note) print_insn = print_insn_hppa; #endif - if (s.info.cap_arch >= 0 && cap_disas_host(&s.info, code, size, note)) { + if (s.info.cap_arch >= 0 && cap_disas_host(&s.info, code, size)) { return; } @@ -683,10 +676,6 @@ void disas(FILE *out, void *code, unsigned long size, const char *note) for (pc = (uintptr_t)code; size > 0; pc += count, size -= count) { fprintf(out, "0x%08" PRIxPTR ": ", pc); count = print_insn(pc, &s.info); - if (note) { - fprintf(out, "\t\t%s", note); - note = NULL; - } fprintf(out, "\n"); if (count < 0) { break; diff --git a/tcg/tcg.c b/tcg/tcg.c index 62f299e36e..9a111ce604 100644 --- a/tcg/tcg.c +++ b/tcg/tcg.c @@ -1101,7 +1101,7 @@ void tcg_prologue_init(TCGContext *s) size_t data_size = prologue_size - code_size; size_t i; - log_disas(buf0, code_size, NULL); + log_disas(buf0, code_size); for (i = 0; i < data_size; i += sizeof(tcg_target_ulong)) { if (sizeof(tcg_target_ulong) == 8) { @@ -1115,7 +1115,7 @@ void tcg_prologue_init(TCGContext *s) } } } else { - log_disas(buf0, prologue_size, NULL); + log_disas(buf0, prologue_size); } qemu_log("\n"); qemu_log_flush();