diff options
| -rw-r--r-- | tools/perf/Documentation/perf-script.txt | 20 | ||||
| -rw-r--r-- | tools/perf/builtin-script.c | 2 | ||||
| -rw-r--r-- | tools/perf/util/event.c | 24 | ||||
| -rw-r--r-- | tools/perf/util/symbol.c | 49 | ||||
| -rw-r--r-- | tools/perf/util/symbol_conf.h | 4 |
5 files changed, 98 insertions, 1 deletions
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 6347cfb97ed3..5b8b61075039 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -422,9 +422,29 @@ include::itrace.txt[] Only consider the listed symbols. Symbols are typically a name but they may also be hexadecimal address. + The hexadecimal address may be the start address of a symbol or + any other address to filter the trace records + For example, to select the symbol noploop or the address 0x4007a0: perf script --symbols=noploop,0x4007a0 + Support filtering trace records by symbol name, start address of + symbol, any hexadecimal address and address range. + + The comparison order is: + + 1. symbol name comparison + 2. symbol start address comparison. + 3. any hexadecimal address comparison. + 4. address range comparison (see --addr-range). + +--addr-range:: + Use with -S or --symbols to list traced records within address range. + + For example, to list the traced records within the address range + [0x4007a0, 0x0x4007a9]: + perf script -S 0x4007a0 --addr-range 10 + --dsos=:: Only consider symbols in these DSOs. diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index 62bb0f1c35c3..1ff72647b416 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -3552,6 +3552,8 @@ int cmd_script(int argc, const char **argv) "only consider symbols in these DSOs"), OPT_STRING('S', "symbols", &symbol_conf.sym_list_str, "symbol[,symbol...]", "only consider these symbols"), + OPT_INTEGER(0, "addr-range", &symbol_conf.addr_range, + "Use with -S to list traced records within address range"), OPT_CALLBACK_OPTARG(0, "insn-trace", &itrace_synth_opts, NULL, NULL, "Decode instructions from itrace", parse_insn_trace), OPT_CALLBACK_OPTARG(0, "xed", NULL, NULL, NULL, diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 208b6c141d98..ac706304afe9 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -645,6 +645,19 @@ struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode, return al->sym; } +static bool check_address_range(struct intlist *addr_list, int addr_range, + unsigned long addr) +{ + struct int_node *pos; + + intlist__for_each_entry(pos, addr_list) { + if (addr >= pos->i && addr < pos->i + addr_range) + return true; + } + + return false; +} + /* * Callers need to drop the reference to al->thread, obtained in * machine__findnew_thread() @@ -711,6 +724,17 @@ int machine__resolve(struct machine *machine, struct addr_location *al, ret = strlist__has_entry(symbol_conf.sym_list, al_addr_str); } + if (!ret && symbol_conf.addr_list && al->map) { + unsigned long addr = al->map->unmap_ip(al->map, al->addr); + + ret = intlist__has_entry(symbol_conf.addr_list, addr); + if (!ret && symbol_conf.addr_range) { + ret = check_address_range(symbol_conf.addr_list, + symbol_conf.addr_range, + addr); + } + } + if (!ret) al->filtered |= (1 << HIST_FILTER__SYMBOL); } diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 64a039cbba1b..40844d0ef6cc 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2406,6 +2406,49 @@ int setup_intlist(struct intlist **list, const char *list_str, return 0; } +static int setup_addrlist(struct intlist **addr_list, struct strlist *sym_list) +{ + struct str_node *pos, *tmp; + unsigned long val; + char *sep; + const char *end; + int i = 0, err; + + *addr_list = intlist__new(NULL); + if (!*addr_list) + return -1; + + strlist__for_each_entry_safe(pos, tmp, sym_list) { + errno = 0; + val = strtoul(pos->s, &sep, 16); + if (errno || (sep == pos->s)) + continue; + + if (*sep != '\0') { + end = pos->s + strlen(pos->s) - 1; + while (end >= sep && isspace(*end)) + end--; + + if (end >= sep) + continue; + } + + err = intlist__add(*addr_list, val); + if (err) + break; + + strlist__remove(sym_list, pos); + i++; + } + + if (i == 0) { + intlist__delete(*addr_list); + *addr_list = NULL; + } + + return 0; +} + static bool symbol__read_kptr_restrict(void) { bool value = false; @@ -2489,6 +2532,10 @@ int symbol__init(struct perf_env *env) symbol_conf.sym_list_str, "symbol") < 0) goto out_free_tid_list; + if (symbol_conf.sym_list && + setup_addrlist(&symbol_conf.addr_list, symbol_conf.sym_list) < 0) + goto out_free_sym_list; + if (setup_list(&symbol_conf.bt_stop_list, symbol_conf.bt_stop_list_str, "symbol") < 0) goto out_free_sym_list; @@ -2512,6 +2559,7 @@ int symbol__init(struct perf_env *env) out_free_sym_list: strlist__delete(symbol_conf.sym_list); + intlist__delete(symbol_conf.addr_list); out_free_tid_list: intlist__delete(symbol_conf.tid_list); out_free_pid_list: @@ -2533,6 +2581,7 @@ void symbol__exit(void) strlist__delete(symbol_conf.comm_list); intlist__delete(symbol_conf.tid_list); intlist__delete(symbol_conf.pid_list); + intlist__delete(symbol_conf.addr_list); vmlinux_path__exit(); symbol_conf.sym_list = symbol_conf.dso_list = symbol_conf.comm_list = NULL; symbol_conf.bt_stop_list = NULL; diff --git a/tools/perf/util/symbol_conf.h b/tools/perf/util/symbol_conf.h index b18f9c8dbb75..a70b3ec09dac 100644 --- a/tools/perf/util/symbol_conf.h +++ b/tools/perf/util/symbol_conf.h @@ -70,11 +70,13 @@ struct symbol_conf { *sym_to_list, *bt_stop_list; struct intlist *pid_list, - *tid_list; + *tid_list, + *addr_list; const char *symfs; int res_sample; int pad_output_len_dso; int group_sort_idx; + int addr_range; }; extern struct symbol_conf symbol_conf; |