diff options
Diffstat (limited to 'tools/perf/ui/browsers/scripts.c')
| -rw-r--r-- | tools/perf/ui/browsers/scripts.c | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/tools/perf/ui/browsers/scripts.c b/tools/perf/ui/browsers/scripts.c new file mode 100644 index 0000000000..47d2c7a8cb --- /dev/null +++ b/tools/perf/ui/browsers/scripts.c @@ -0,0 +1,193 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "../../builtin.h" +#include "../../perf.h" +#include "../../util/util.h" // perf_exe() +#include "../util.h" +#include "../../util/hist.h" +#include "../../util/debug.h" +#include "../../util/symbol.h" +#include "../browser.h" +#include "../libslang.h" +#include "config.h" +#include <linux/string.h> +#include <linux/zalloc.h> +#include <stdlib.h> + +#define SCRIPT_NAMELEN 128 +#define SCRIPT_MAX_NO 64 +/* + * Usually the full path for a script is: + * /home/username/libexec/perf-core/scripts/python/xxx.py + * /home/username/libexec/perf-core/scripts/perl/xxx.pl + * So 256 should be long enough to contain the full path. + */ +#define SCRIPT_FULLPATH_LEN 256 + +struct script_config { + const char **names; + char **paths; + int index; + const char *perf; + char extra_format[256]; +}; + +void attr_to_script(char *extra_format, struct perf_event_attr *attr) +{ + extra_format[0] = 0; + if (attr->read_format & PERF_FORMAT_GROUP) + strcat(extra_format, " -F +metric"); + if (attr->sample_type & PERF_SAMPLE_BRANCH_STACK) + strcat(extra_format, " -F +brstackinsn --xed"); + if (attr->sample_type & PERF_SAMPLE_REGS_INTR) + strcat(extra_format, " -F +iregs"); + if (attr->sample_type & PERF_SAMPLE_REGS_USER) + strcat(extra_format, " -F +uregs"); + if (attr->sample_type & PERF_SAMPLE_PHYS_ADDR) + strcat(extra_format, " -F +phys_addr"); +} + +static int add_script_option(const char *name, const char *opt, + struct script_config *c) +{ + c->names[c->index] = name; + if (asprintf(&c->paths[c->index], + "%s script %s -F +metric %s %s", + c->perf, opt, symbol_conf.inline_name ? " --inline" : "", + c->extra_format) < 0) + return -1; + c->index++; + return 0; +} + +static int scripts_config(const char *var, const char *value, void *data) +{ + struct script_config *c = data; + + if (!strstarts(var, "scripts.")) + return -1; + if (c->index >= SCRIPT_MAX_NO) + return -1; + c->names[c->index] = strdup(var + 7); + if (!c->names[c->index]) + return -1; + if (asprintf(&c->paths[c->index], "%s %s", value, + c->extra_format) < 0) + return -1; + c->index++; + return 0; +} + +/* + * When success, will copy the full path of the selected script + * into the buffer pointed by script_name, and return 0. + * Return -1 on failure. + */ +static int list_scripts(char *script_name, bool *custom, + struct evsel *evsel) +{ + char *buf, *paths[SCRIPT_MAX_NO], *names[SCRIPT_MAX_NO]; + int i, num, choice; + int ret = 0; + int max_std, custom_perf; + char pbuf[256]; + const char *perf = perf_exe(pbuf, sizeof pbuf); + struct script_config scriptc = { + .names = (const char **)names, + .paths = paths, + .perf = perf + }; + + script_name[0] = 0; + + /* Preset the script name to SCRIPT_NAMELEN */ + buf = malloc(SCRIPT_MAX_NO * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN)); + if (!buf) + return -1; + + if (evsel) + attr_to_script(scriptc.extra_format, &evsel->core.attr); + add_script_option("Show individual samples", "", &scriptc); + add_script_option("Show individual samples with assembler", "-F +insn --xed", + &scriptc); + add_script_option("Show individual samples with source", "-F +srcline,+srccode", + &scriptc); + perf_config(scripts_config, &scriptc); + custom_perf = scriptc.index; + add_script_option("Show samples with custom perf script arguments", "", &scriptc); + i = scriptc.index; + max_std = i; + + for (; i < SCRIPT_MAX_NO; i++) { + names[i] = buf + (i - max_std) * (SCRIPT_NAMELEN + SCRIPT_FULLPATH_LEN); + paths[i] = names[i] + SCRIPT_NAMELEN; + } + + num = find_scripts(names + max_std, paths + max_std, SCRIPT_MAX_NO - max_std, + SCRIPT_FULLPATH_LEN); + if (num < 0) + num = 0; + choice = ui__popup_menu(num + max_std, (char * const *)names, NULL); + if (choice < 0) { + ret = -1; + goto out; + } + if (choice == custom_perf) { + char script_args[50]; + int key = ui_browser__input_window("perf script command", + "Enter perf script command line (without perf script prefix)", + script_args, "", 0); + if (key != K_ENTER) { + ret = -1; + goto out; + } + sprintf(script_name, "%s script %s", perf, script_args); + } else if (choice < num + max_std) { + strcpy(script_name, paths[choice]); + } + *custom = choice >= max_std; + +out: + free(buf); + for (i = 0; i < max_std; i++) + zfree(&paths[i]); + return ret; +} + +void run_script(char *cmd) +{ + pr_debug("Running %s\n", cmd); + SLang_reset_tty(); + if (system(cmd) < 0) + pr_warning("Cannot run %s\n", cmd); + /* + * SLang doesn't seem to reset the whole terminal, so be more + * forceful to get back to the original state. + */ + printf("\033[c\033[H\033[J"); + fflush(stdout); + SLang_init_tty(0, 0, 0); + SLsmg_refresh(); +} + +int script_browse(const char *script_opt, struct evsel *evsel) +{ + char *cmd, script_name[SCRIPT_FULLPATH_LEN]; + bool custom = false; + + memset(script_name, 0, SCRIPT_FULLPATH_LEN); + if (list_scripts(script_name, &custom, evsel)) + return -1; + + if (asprintf(&cmd, "%s%s %s %s%s 2>&1 | less", + custom ? "perf script -s " : "", + script_name, + script_opt ? script_opt : "", + input_name ? "-i " : "", + input_name ? input_name : "") < 0) + return -1; + + run_script(cmd); + free(cmd); + + return 0; +} |