-d tb_stats[[,level=(+all+jit+exec+time)][,dump_limit=<number>]] "dump_limit" is used to limit the number of dumped TBStats in linux-user mode.
[all+jit+exec+time] control the profilling level used by the TBStats. Can be used as follow: -d tb_stats -d tb_stats,level=jit+time -d tb_stats,dump_limit=15 ... Signed-off-by: Vanderson M. do Rosario <vanderson...@gmail.com> --- include/exec/gen-icount.h | 1 + include/exec/tb-stats-flags.h | 42 +++++++++++++++++++++++++++++++++++ include/exec/tb-stats.h | 18 +++------------ include/qemu/log.h | 1 + util/log.c | 35 +++++++++++++++++++++++++++++ 5 files changed, 82 insertions(+), 15 deletions(-) create mode 100644 include/exec/tb-stats-flags.h diff --git a/include/exec/gen-icount.h b/include/exec/gen-icount.h index be006383b9..3987adfb0e 100644 --- a/include/exec/gen-icount.h +++ b/include/exec/gen-icount.h @@ -2,6 +2,7 @@ #define GEN_ICOUNT_H #include "qemu/timer.h" +#include "tb-stats-flags.h" /* Helpers for instruction counting code generation. */ diff --git a/include/exec/tb-stats-flags.h b/include/exec/tb-stats-flags.h new file mode 100644 index 0000000000..c936ac1084 --- /dev/null +++ b/include/exec/tb-stats-flags.h @@ -0,0 +1,42 @@ +/* + * QEMU System Emulator, Code Quality Monitor System + * + * Copyright (c) 2019 Vanderson M. do Rosario <vanderson...@gmail.com> + * + * Permission is hereby granted, free of charge, to any person obtaining a copy + * of this software and associated documentation files (the "Software"), to deal + * in the Software without restriction, including without limitation the rights + * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell + * copies of the Software, and to permit persons to whom the Software is + * furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, + * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN + * THE SOFTWARE. + */ +#ifndef TB_STATS_FLAGS +#define TB_STATS_FLAGS + +enum TBStatsStatus { + TB_STATS_DISABLED = 0, + TB_STATS_RUNNING, + TB_STATS_PAUSED, + TB_STATS_STOPPED +}; + +#define TB_NOTHING (1 << 0) +#define TB_EXEC_STATS (1 << 1) +#define TB_JIT_STATS (1 << 2) +#define TB_JIT_TIME (1 << 3) + +extern int tcg_collect_tb_stats; +extern uint32_t default_tbstats_flag; + +#endif diff --git a/include/exec/tb-stats.h b/include/exec/tb-stats.h index 0b9a6e2f72..6a53bef31b 100644 --- a/include/exec/tb-stats.h +++ b/include/exec/tb-stats.h @@ -30,6 +30,8 @@ #include "exec/tb-context.h" #include "tcg.h" +#include "exec/tb-stats-flags.h" + #define tb_stats_enabled(tb, JIT_STATS) \ (tb && tb->tb_stats && (tb->tb_stats->stats_enabled & JIT_STATS)) @@ -98,26 +100,12 @@ bool tb_stats_cmp(const void *ap, const void *bp); void dump_jit_exec_time_info(uint64_t dev_time); +void set_tbstats_flags(uint32_t flags); void init_tb_stats_htable_if_not(void); void dump_jit_profile_info(TCGProfile *s); /* TBStatistic collection controls */ -enum TBStatsStatus { - TB_STATS_DISABLED = 0, - TB_STATS_RUNNING, - TB_STATS_PAUSED, - TB_STATS_STOPPED -}; - -#define TB_NOTHING (1 << 0) -#define TB_EXEC_STATS (1 << 1) -#define TB_JIT_STATS (1 << 2) -#define TB_JIT_TIME (1 << 3) - -extern int tcg_collect_tb_stats; -extern uint32_t default_tbstats_flag; - void enable_collect_tb_stats(void); void disable_collect_tb_stats(void); void pause_collect_tb_stats(void); diff --git a/include/qemu/log.h b/include/qemu/log.h index b097a6cae1..a8d1997cde 100644 --- a/include/qemu/log.h +++ b/include/qemu/log.h @@ -45,6 +45,7 @@ static inline bool qemu_log_separate(void) /* LOG_TRACE (1 << 15) is defined in log-for-trace.h */ #define CPU_LOG_TB_OP_IND (1 << 16) #define CPU_LOG_TB_FPU (1 << 17) +#define CPU_LOG_TB_STATS (1 << 18) /* Lock output for a series of related logs. Since this is not needed * for a single qemu_log / qemu_log_mask / qemu_log_mask_and_addr, we diff --git a/util/log.c b/util/log.c index 29021a4584..c3805b331b 100644 --- a/util/log.c +++ b/util/log.c @@ -19,17 +19,20 @@ #include "qemu/osdep.h" #include "qemu/log.h" +#include "qemu/qemu-print.h" #include "qemu/range.h" #include "qemu/error-report.h" #include "qapi/error.h" #include "qemu/cutils.h" #include "trace/control.h" +#include "exec/tb-stats-flags.h" static char *logfilename; FILE *qemu_logfile; int qemu_loglevel; static int log_append = 0; static GArray *debug_regions; +int32_t max_num_hot_tbs_to_dump; int tcg_collect_tb_stats; uint32_t default_tbstats_flag; @@ -276,6 +279,9 @@ const QEMULogItem qemu_log_items[] = { { CPU_LOG_TB_NOCHAIN, "nochain", "do not chain compiled TBs so that \"exec\" and \"cpu\" show\n" "complete traces" }, + { CPU_LOG_TB_STATS, "tb_stats[[,level=(+all+jit+exec+time)][,dump_limit=<number>]]", + "enable collection of TBs statistics" + "(and dump until given a limit if in user mode).\n" }, { 0, NULL, NULL }, }; @@ -297,6 +303,35 @@ int qemu_str_to_log_mask(const char *str) trace_enable_events((*tmp) + 6); mask |= LOG_TRACE; #endif + } else if (g_str_has_prefix(*tmp, "tb_stats")) { + mask |= CPU_LOG_TB_STATS; + default_tbstats_flag = TB_JIT_STATS | TB_EXEC_STATS | TB_JIT_TIME; + tcg_collect_tb_stats = TB_STATS_RUNNING; + } else if (tcg_collect_tb_stats == TB_STATS_RUNNING && + g_str_has_prefix(*tmp, "dump_limit=")) { + + max_num_hot_tbs_to_dump = atoi((*tmp) + 11); + } else if (tcg_collect_tb_stats == TB_STATS_RUNNING && + g_str_has_prefix(*tmp, "level=")) { + + default_tbstats_flag = 0; + char **level_parts = g_strsplit(*tmp + 6, "+", 0); + char **level_tmp; + for (level_tmp = level_parts; level_tmp && *level_tmp; level_tmp++) { + if (g_str_equal(*level_tmp, "jit")) { + default_tbstats_flag |= TB_JIT_STATS; + } else if (g_str_equal(*level_tmp, "exec")) { + default_tbstats_flag |= TB_EXEC_STATS; + } else if (g_str_equal(*level_tmp, "time")) { + default_tbstats_flag |= TB_JIT_TIME; + } else if (g_str_equal(*level_tmp, "all")) { + default_tbstats_flag |= TB_JIT_STATS | TB_EXEC_STATS | TB_JIT_TIME; + } else { + fprintf(stderr, "no option level=%s, valid options are:" + "all, jit, exec or/and time\n", *level_tmp); + exit(1); + } + } } else { for (item = qemu_log_items; item->mask != 0; item++) { if (g_str_equal(*tmp, item->name)) { -- 2.22.0