X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng%2Fcommands%2Flist.c;h=b436777d671b74bb2165d97eae9a5e6a1c6604e7;hp=96ccdb039e53ef2d9e84609c75f087f7243f2480;hb=2fa605f7de6b95f50fc864072bc1445c61eb2c79;hpb=8e20a4c7bb936a4e919e499dfe4c975e80aaa80a diff --git a/src/bin/lttng/commands/list.c b/src/bin/lttng/commands/list.c index 96ccdb039..b436777d6 100644 --- a/src/bin/lttng/commands/list.c +++ b/src/bin/lttng/commands/list.c @@ -16,6 +16,7 @@ */ #define _GNU_SOURCE +#define _LGPL_SOURCE #include #include #include @@ -31,14 +32,11 @@ static int opt_userspace; static int opt_kernel; static int opt_jul; static int opt_log4j; +static int opt_python; static char *opt_channel; static int opt_domain; static int opt_fields; -#if 0 -/* Not implemented yet */ -static char *opt_cmd_name; -static pid_t opt_pid; -#endif +static int opt_syscall; const char *indent4 = " "; const char *indent6 = " "; @@ -55,20 +53,16 @@ static struct mi_writer *writer; static struct poptOption long_options[] = { /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */ - {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, - {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, - {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, - {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, -#if 0 - /* Not implemented yet */ - {"userspace", 'u', POPT_ARG_STRING | POPT_ARGFLAG_OPTIONAL, &opt_cmd_name, OPT_USERSPACE, 0, 0}, - {"pid", 'p', POPT_ARG_INT, &opt_pid, 0, 0, 0}, -#else - {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, -#endif - {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, - {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, - {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, + {"help", 'h', POPT_ARG_NONE, 0, OPT_HELP, 0, 0}, + {"kernel", 'k', POPT_ARG_VAL, &opt_kernel, 1, 0, 0}, + {"jul", 'j', POPT_ARG_VAL, &opt_jul, 1, 0, 0}, + {"log4j", 'l', POPT_ARG_VAL, &opt_log4j, 1, 0, 0}, + {"python", 'p', POPT_ARG_VAL, &opt_python, 1, 0, 0}, + {"userspace", 'u', POPT_ARG_NONE, 0, OPT_USERSPACE, 0, 0}, + {"channel", 'c', POPT_ARG_STRING, &opt_channel, 0, 0, 0}, + {"domain", 'd', POPT_ARG_VAL, &opt_domain, 1, 0, 0}, + {"fields", 'f', POPT_ARG_VAL, &opt_fields, 1, 0, 0}, + {"syscall", 'S', POPT_ARG_VAL, &opt_syscall, 1, 0, 0}, {"list-options", 0, POPT_ARG_NONE, NULL, OPT_LIST_OPTIONS, NULL, NULL}, {0, 0, 0, 0, 0, 0, 0} }; @@ -90,10 +84,10 @@ static void usage(FILE *ofp) fprintf(ofp, " -k, --kernel Select kernel domain\n"); fprintf(ofp, " -u, --userspace Select user-space domain.\n"); fprintf(ofp, " -j, --jul Apply for Java application using JUL\n"); + fprintf(ofp, " -l, --log4j Apply for Java application using LOG4J\n"); + fprintf(ofp, " -p, --python Apply for Python application using logging\n"); fprintf(ofp, " -f, --fields List event fields.\n"); -#if 0 - fprintf(ofp, " -p, --pid PID List user-space events by PID\n"); -#endif + fprintf(ofp, " --syscall List available system calls.\n"); fprintf(ofp, "\n"); fprintf(ofp, "Session Options:\n"); fprintf(ofp, " -c, --channel NAME List details of a channel\n"); @@ -110,7 +104,7 @@ static void usage(FILE *ofp) static char *get_cmdline_by_pid(pid_t pid) { int ret; - FILE *fp; + FILE *fp = NULL; char *cmdline = NULL; char path[20]; /* Can't go bigger than /proc/65535/cmdline */ @@ -121,18 +115,20 @@ static char *get_cmdline_by_pid(pid_t pid) } /* Caller must free() *cmdline */ - cmdline = malloc(PATH_MAX); + cmdline = zmalloc(PATH_MAX); if (!cmdline) { - perror("malloc cmdline"); + PERROR("malloc cmdline"); goto end; } ret = fread(cmdline, 1, PATH_MAX, fp); if (ret < 0) { - perror("fread proc list"); + PERROR("fread proc list"); } - fclose(fp); end: + if (fp) { + fclose(fp); + } return cmdline; } @@ -200,6 +196,21 @@ static const char *logleveltype_string(enum lttng_loglevel_type value) } } +static const char *bitness_event(enum lttng_event_flag flags) +{ + if (flags & LTTNG_EVENT_FLAG_SYSCALL_32) { + if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { + return " [32/64-bit]"; + } else { + return " [32-bit]"; + } + } else if (flags & LTTNG_EVENT_FLAG_SYSCALL_64) { + return " [64-bit]"; + } else { + return ""; + } +} + /* * Pretty print single event. */ @@ -213,7 +224,7 @@ static void print_events(struct lttng_event *event) indent6, event->name, logleveltype_string(event->loglevel_type), - mi_lttng_loglevel_string(event->loglevel), + mi_lttng_loglevel_string(event->loglevel, handle->domain.type), event->loglevel, enabled_string(event->enabled), exclusion_string(event->exclusion), @@ -257,9 +268,10 @@ static void print_events(struct lttng_event *event) MSG("%ssymbol: \"%s\"", indent8, event->attr.ftrace.symbol_name); break; case LTTNG_EVENT_SYSCALL: - MSG("%ssyscalls (type: syscall)%s%s", indent6, + MSG("%s%s%s%s%s", indent6, event->name, + (opt_syscall ? "" : " (type:syscall)"), enabled_string(event->enabled), - filter_string(event->filter)); + bitness_event(event->flags)); break; case LTTNG_EVENT_NOOP: MSG("%s (type: noop)%s%s", indent6, @@ -369,7 +381,7 @@ static int mi_list_agent_ust_events(struct lttng_event *events, int count, } /* Write an event */ - ret = mi_lttng_event(writer, &events[i], 0); + ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); if (ret) { goto end; } @@ -405,6 +417,8 @@ static int list_agent_events(void) domain.type = LTTNG_DOMAIN_JUL; } else if (opt_log4j) { domain.type = LTTNG_DOMAIN_LOG4J; + } else if (opt_python) { + domain.type = LTTNG_DOMAIN_PYTHON; } agent_domain_str = get_domain_str(domain.type); @@ -619,7 +633,8 @@ static int mi_list_ust_event_fields(struct lttng_event_field *fields, int count, if (!event_element_open) { /* Open and write the event */ - ret = mi_lttng_event(writer, &cur_event, 1); + ret = mi_lttng_event(writer, &cur_event, 1, + handle->domain.type); if (ret) { goto end; } @@ -757,7 +772,7 @@ static int mi_list_kernel_events(struct lttng_event *events, int count, } for (i = 0; i < count; i++) { - ret = mi_lttng_event(writer, &events[i], 0); + ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); if (ret) { goto end; } @@ -830,6 +845,79 @@ error: return ret; } +/* + * Machine interface + * Print a list of system calls. + */ +static int mi_list_syscalls(struct lttng_event *events, int count) +{ + int ret, i; + + /* Open events */ + ret = mi_lttng_events_open(writer); + if (ret) { + goto end; + } + + for (i = 0; i < count; i++) { + ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); + if (ret) { + goto end; + } + } + + /* Close events. */ + ret = mi_lttng_writer_close_element(writer); + if (ret) { + goto end; + } + +end: + return ret; +} + +/* + * Ask for kernel system calls. + */ +static int list_syscalls(void) +{ + int i, size, ret = CMD_SUCCESS; + struct lttng_event *event_list; + + DBG("Getting kernel system call events"); + + size = lttng_list_syscalls(&event_list); + if (size < 0) { + ERR("Unable to list system calls: %s", lttng_strerror(size)); + ret = CMD_ERROR; + goto error; + } + + if (lttng_opt_mi) { + /* Mi print */ + ret = mi_list_syscalls(event_list, size); + if (ret) { + ret = CMD_ERROR; + goto end; + } + } else { + MSG("System calls:\n-------------"); + + for (i = 0; i < size; i++) { + print_events(&event_list[i]); + } + + MSG(""); + } + +end: + free(event_list); + return ret; + +error: + return ret; +} + /* * Machine Interface * Print a list of agent events @@ -845,7 +933,7 @@ static int mi_list_session_agent_events(struct lttng_event *events, int count) } for (i = 0; i < count; i++) { - ret = mi_lttng_event(writer, &events[i], 0); + ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); if (ret) { goto end; } @@ -894,7 +982,8 @@ static int list_session_agent_events(void) MSG("%s- %s%s (loglevel%s %s)", indent4, events[i].name, enabled_string(events[i].enabled), logleveltype_string(events[i].loglevel_type), - mi_lttng_loglevel_string(events[i].loglevel)); + mi_lttng_loglevel_string(events[i].loglevel, + handle->domain.type)); } MSG(""); @@ -921,7 +1010,7 @@ static int mi_list_events(struct lttng_event *events, int count) } for (i = 0; i < count; i++) { - ret = mi_lttng_event(writer, &events[i], 0); + ret = mi_lttng_event(writer, &events[i], 0, handle->domain.type); if (ret) { goto end; } @@ -1105,7 +1194,7 @@ static int list_channels(const char *channel_name) } } else { /* Pretty print */ - if (channel_name == NULL) { + if (count) { MSG("Channels:\n-------------"); } @@ -1143,6 +1232,36 @@ error_channels: return ret; } +/* + * List tracker PID(s) of session and domain. + */ +static int list_tracker_pids(void) +{ + int enabled, ret; + int *pids = NULL; + size_t nr_pids; + + ret = lttng_list_tracker_pids(handle, + &enabled, &pids, &nr_pids); + if (ret) { + return ret; + } + if (enabled) { + int i; + _MSG("PID tracker: ["); + + for (i = 0; i < nr_pids; i++) { + if (i) { + _MSG(","); + } + _MSG(" %d", pids[i]); + } + _MSG(" ]\n\n"); + } + free(pids); + return 0; +} + /* * Machine interface * Find the session with session_name as name @@ -1275,8 +1394,11 @@ static int list_sessions(const char *session_name) active_string(sessions[i].enabled), snapshot_string(sessions[i].snapshot_mode)); MSG("%sTrace path: %s", indent4, sessions[i].path); - MSG("%sLive timer interval (usec): %u\n", indent4, - sessions[i].live_timer_interval); + if (sessions[i].live_timer_interval != 0) { + MSG("%sLive timer interval (usec): %u", indent4, + sessions[i].live_timer_interval); + } + MSG(""); } } @@ -1372,6 +1494,9 @@ static int list_domains(const char *session_name) case LTTNG_DOMAIN_LOG4J: MSG(" - LOG4j (Logging for Java)"); break; + case LTTNG_DOMAIN_PYTHON: + MSG(" - Python (logging)"); + break; default: break; } @@ -1464,9 +1589,17 @@ int cmd_list(int argc, const char **argv) domain.type = LTTNG_DOMAIN_JUL; } else if (opt_log4j) { domain.type = LTTNG_DOMAIN_LOG4J; + } else if (opt_python) { + domain.type = LTTNG_DOMAIN_PYTHON; } - if (opt_kernel || opt_userspace || opt_jul || opt_log4j) { + if (!opt_kernel && opt_syscall) { + WARN("--syscall will only work with the Kernel domain (-k)"); + ret = CMD_ERROR; + goto end; + } + + if (opt_kernel || opt_userspace || opt_jul || opt_log4j || opt_python) { handle = lttng_create_handle(session_name, &domain); if (handle == NULL) { ret = CMD_FATAL; @@ -1475,16 +1608,24 @@ int cmd_list(int argc, const char **argv) } if (session_name == NULL) { - if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j) { + if (!opt_kernel && !opt_userspace && !opt_jul && !opt_log4j + && !opt_python) { ret = list_sessions(NULL); if (ret) { goto end; } } if (opt_kernel) { - ret = list_kernel_events(); - if (ret) { - goto end; + if (opt_syscall) { + ret = list_syscalls(); + if (ret) { + goto end; + } + } else { + ret = list_kernel_events(); + if (ret) { + goto end; + } } } if (opt_userspace) { @@ -1497,7 +1638,7 @@ int cmd_list(int argc, const char **argv) goto end; } } - if (opt_jul || opt_log4j) { + if (opt_jul || opt_log4j || opt_python) { ret = list_agent_events(); if (ret) { goto end; @@ -1545,6 +1686,11 @@ int cmd_list(int argc, const char **argv) } + ret = list_tracker_pids(); + if (ret) { + goto end; + } + ret = list_channels(opt_channel); if (ret) { goto end; @@ -1595,6 +1741,9 @@ int cmd_list(int argc, const char **argv) case LTTNG_DOMAIN_LOG4J: MSG("=== Domain: LOG4j (Logging for Java) ===\n"); break; + case LTTNG_DOMAIN_PYTHON: + MSG("=== Domain: Python (logging) ===\n"); + break; default: MSG("=== Domain: Unimplemented ===\n"); break; @@ -1620,7 +1769,8 @@ int cmd_list(int argc, const char **argv) } if (domains[i].type == LTTNG_DOMAIN_JUL || - domains[i].type == LTTNG_DOMAIN_LOG4J) { + domains[i].type == LTTNG_DOMAIN_LOG4J || + domains[i].type == LTTNG_DOMAIN_PYTHON) { ret = list_session_agent_events(); if (ret) { goto end; @@ -1628,6 +1778,18 @@ int cmd_list(int argc, const char **argv) continue; } + switch (domains[i].type) { + case LTTNG_DOMAIN_KERNEL: + case LTTNG_DOMAIN_UST: + ret = list_tracker_pids(); + if (ret) { + goto end; + } + break; + default: + break; + } + ret = list_channels(opt_channel); if (ret) { goto end;