| #include "cache.h" |
| #include "config.h" |
| #include "json-writer.h" |
| #include "quote.h" |
| #include "run-command.h" |
| #include "sigchain.h" |
| #include "thread-utils.h" |
| #include "version.h" |
| #include "trace2/tr2_cfg.h" |
| #include "trace2/tr2_cmd_name.h" |
| #include "trace2/tr2_dst.h" |
| #include "trace2/tr2_sid.h" |
| #include "trace2/tr2_sysenv.h" |
| #include "trace2/tr2_tgt.h" |
| #include "trace2/tr2_tls.h" |
| |
| static int trace2_enabled; |
| |
| static int tr2_next_child_id; /* modify under lock */ |
| static int tr2_next_exec_id; /* modify under lock */ |
| static int tr2_next_repo_id = 1; /* modify under lock. zero is reserved */ |
| |
| /* |
| * A table of the builtin TRACE2 targets. Each of these may be independently |
| * enabled or disabled. Each TRACE2 API method will try to write an event to |
| * *each* of the enabled targets. |
| */ |
| /* clang-format off */ |
| static struct tr2_tgt *tr2_tgt_builtins[] = |
| { |
| &tr2_tgt_normal, |
| &tr2_tgt_perf, |
| &tr2_tgt_event, |
| NULL |
| }; |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| #define for_each_builtin(j, tgt_j) \ |
| for (j = 0, tgt_j = tr2_tgt_builtins[j]; \ |
| tgt_j; \ |
| j++, tgt_j = tr2_tgt_builtins[j]) |
| /* clang-format on */ |
| |
| /* clang-format off */ |
| #define for_each_wanted_builtin(j, tgt_j) \ |
| for_each_builtin(j, tgt_j) \ |
| if (tr2_dst_trace_want(tgt_j->pdst)) |
| /* clang-format on */ |
| |
| /* |
| * Force (rather than lazily) initialize any of the requested |
| * builtin TRACE2 targets at startup (and before we've seen an |
| * actual TRACE2 event call) so we can see if we need to setup |
| * the TR2 and TLS machinery. |
| * |
| * Return the number of builtin targets enabled. |
| */ |
| static int tr2_tgt_want_builtins(void) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| int sum = 0; |
| |
| for_each_builtin (j, tgt_j) |
| if (tgt_j->pfn_init()) |
| sum++; |
| |
| return sum; |
| } |
| |
| /* |
| * Properly terminate each builtin target. Give each target |
| * a chance to write a summary event and/or flush if necessary |
| * and then close the fd. |
| */ |
| static void tr2_tgt_disable_builtins(void) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| for_each_builtin (j, tgt_j) |
| tgt_j->pfn_term(); |
| } |
| |
| static int tr2main_exit_code; |
| |
| /* |
| * Our atexit routine should run after everything has finished. |
| * |
| * Note that events generated here might not actually appear if |
| * we are writing to fd 1 or 2 and our atexit routine runs after |
| * the pager's atexit routine (since it closes them to shutdown |
| * the pipes). |
| */ |
| static void tr2main_atexit_handler(void) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| /* |
| * Clear any unbalanced regions so that our atexit message |
| * does not appear nested. This improves the appearance of |
| * the trace output if someone calls die(), for example. |
| */ |
| tr2tls_pop_unwind_self(); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_atexit) |
| tgt_j->pfn_atexit(us_elapsed_absolute, |
| tr2main_exit_code); |
| |
| tr2_tgt_disable_builtins(); |
| |
| tr2tls_release(); |
| tr2_sid_release(); |
| tr2_cmd_name_release(); |
| tr2_cfg_free_patterns(); |
| tr2_cfg_free_env_vars(); |
| tr2_sysenv_release(); |
| |
| trace2_enabled = 0; |
| } |
| |
| static void tr2main_signal_handler(int signo) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_signal) |
| tgt_j->pfn_signal(us_elapsed_absolute, signo); |
| |
| sigchain_pop(signo); |
| raise(signo); |
| } |
| |
| void trace2_initialize_clock(void) |
| { |
| tr2tls_start_process_clock(); |
| } |
| |
| void trace2_initialize_fl(const char *file, int line) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (trace2_enabled) |
| return; |
| |
| tr2_sysenv_load(); |
| |
| if (!tr2_tgt_want_builtins()) |
| return; |
| trace2_enabled = 1; |
| |
| tr2_sid_get(); |
| |
| atexit(tr2main_atexit_handler); |
| sigchain_push(SIGPIPE, tr2main_signal_handler); |
| tr2tls_init(); |
| |
| /* |
| * Emit 'version' message on each active builtin target. |
| */ |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_version_fl) |
| tgt_j->pfn_version_fl(file, line); |
| } |
| |
| int trace2_is_enabled(void) |
| { |
| return trace2_enabled; |
| } |
| |
| void trace2_cmd_start_fl(const char *file, int line, const char **argv) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_start_fl) |
| tgt_j->pfn_start_fl(file, line, us_elapsed_absolute, |
| argv); |
| } |
| |
| int trace2_cmd_exit_fl(const char *file, int line, int code) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| code &= 0xff; |
| |
| if (!trace2_enabled) |
| return code; |
| |
| trace_git_fsync_stats(); |
| trace2_collect_process_info(TRACE2_PROCESS_INFO_EXIT); |
| |
| tr2main_exit_code = code; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_exit_fl) |
| tgt_j->pfn_exit_fl(file, line, us_elapsed_absolute, |
| code); |
| |
| return code; |
| } |
| |
| void trace2_cmd_error_va_fl(const char *file, int line, const char *fmt, |
| va_list ap) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| /* |
| * We expect each target function to treat 'ap' as constant |
| * and use va_copy (because an 'ap' can only be walked once). |
| */ |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_error_va_fl) |
| tgt_j->pfn_error_va_fl(file, line, fmt, ap); |
| } |
| |
| void trace2_cmd_path_fl(const char *file, int line, const char *pathname) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_command_path_fl) |
| tgt_j->pfn_command_path_fl(file, line, pathname); |
| } |
| |
| void trace2_cmd_ancestry_fl(const char *file, int line, const char **parent_names) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_command_ancestry_fl) |
| tgt_j->pfn_command_ancestry_fl(file, line, parent_names); |
| } |
| |
| void trace2_cmd_name_fl(const char *file, int line, const char *name) |
| { |
| struct tr2_tgt *tgt_j; |
| const char *hierarchy; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| tr2_cmd_name_append_hierarchy(name); |
| hierarchy = tr2_cmd_name_get_hierarchy(); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_command_name_fl) |
| tgt_j->pfn_command_name_fl(file, line, name, hierarchy); |
| } |
| |
| void trace2_cmd_mode_fl(const char *file, int line, const char *mode) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_command_mode_fl) |
| tgt_j->pfn_command_mode_fl(file, line, mode); |
| } |
| |
| void trace2_cmd_alias_fl(const char *file, int line, const char *alias, |
| const char **argv) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_alias_fl) |
| tgt_j->pfn_alias_fl(file, line, alias, argv); |
| } |
| |
| void trace2_cmd_list_config_fl(const char *file, int line) |
| { |
| if (!trace2_enabled) |
| return; |
| |
| tr2_cfg_list_config_fl(file, line); |
| } |
| |
| void trace2_cmd_list_env_vars_fl(const char *file, int line) |
| { |
| if (!trace2_enabled) |
| return; |
| |
| tr2_list_env_vars_fl(file, line); |
| } |
| |
| void trace2_cmd_set_config_fl(const char *file, int line, const char *key, |
| const char *value) |
| { |
| if (!trace2_enabled) |
| return; |
| |
| tr2_cfg_set_fl(file, line, key, value); |
| } |
| |
| void trace2_child_start_fl(const char *file, int line, |
| struct child_process *cmd) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| cmd->trace2_child_id = tr2tls_locked_increment(&tr2_next_child_id); |
| cmd->trace2_child_us_start = us_now; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_child_start_fl) |
| tgt_j->pfn_child_start_fl(file, line, |
| us_elapsed_absolute, cmd); |
| } |
| |
| void trace2_child_exit_fl(const char *file, int line, struct child_process *cmd, |
| int child_exit_code) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_child; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| if (cmd->trace2_child_us_start) |
| us_elapsed_child = us_now - cmd->trace2_child_us_start; |
| else |
| us_elapsed_child = 0; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_child_exit_fl) |
| tgt_j->pfn_child_exit_fl(file, line, |
| us_elapsed_absolute, |
| cmd->trace2_child_id, cmd->pid, |
| child_exit_code, |
| us_elapsed_child); |
| } |
| |
| void trace2_child_ready_fl(const char *file, int line, |
| struct child_process *cmd, |
| const char *ready) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_child; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| if (cmd->trace2_child_us_start) |
| us_elapsed_child = us_now - cmd->trace2_child_us_start; |
| else |
| us_elapsed_child = 0; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_child_ready_fl) |
| tgt_j->pfn_child_ready_fl(file, line, |
| us_elapsed_absolute, |
| cmd->trace2_child_id, |
| cmd->pid, |
| ready, |
| us_elapsed_child); |
| } |
| |
| int trace2_exec_fl(const char *file, int line, const char *exe, |
| const char **argv) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| int exec_id; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return -1; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| exec_id = tr2tls_locked_increment(&tr2_next_exec_id); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_exec_fl) |
| tgt_j->pfn_exec_fl(file, line, us_elapsed_absolute, |
| exec_id, exe, argv); |
| |
| return exec_id; |
| } |
| |
| void trace2_exec_result_fl(const char *file, int line, int exec_id, int code) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_exec_result_fl) |
| tgt_j->pfn_exec_result_fl( |
| file, line, us_elapsed_absolute, exec_id, code); |
| } |
| |
| void trace2_thread_start_fl(const char *file, int line, const char *thread_name) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| if (tr2tls_is_main_thread()) { |
| /* |
| * We should only be called from the new thread's thread-proc, |
| * so this is technically a bug. But in those cases where the |
| * main thread also runs the thread-proc function (or when we |
| * are built with threading disabled), we need to allow it. |
| * |
| * Convert this call to a region-enter so the nesting looks |
| * correct. |
| */ |
| trace2_region_enter_printf_fl(file, line, NULL, NULL, NULL, |
| "thread-proc on main: %s", |
| thread_name); |
| return; |
| } |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| tr2tls_create_self(thread_name, us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_thread_start_fl) |
| tgt_j->pfn_thread_start_fl(file, line, |
| us_elapsed_absolute); |
| } |
| |
| void trace2_thread_exit_fl(const char *file, int line) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_thread; |
| |
| if (!trace2_enabled) |
| return; |
| |
| if (tr2tls_is_main_thread()) { |
| /* |
| * We should only be called from the exiting thread's |
| * thread-proc, so this is technically a bug. But in |
| * those cases where the main thread also runs the |
| * thread-proc function (or when we are built with |
| * threading disabled), we need to allow it. |
| * |
| * Convert this call to a region-leave so the nesting |
| * looks correct. |
| */ |
| trace2_region_leave_printf_fl(file, line, NULL, NULL, NULL, |
| "thread-proc on main"); |
| return; |
| } |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| /* |
| * Clear any unbalanced regions and then get the relative time |
| * for the outer-most region (which we pushed when the thread |
| * started). This gives us the run time of the thread. |
| */ |
| tr2tls_pop_unwind_self(); |
| us_elapsed_thread = tr2tls_region_elasped_self(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_thread_exit_fl) |
| tgt_j->pfn_thread_exit_fl(file, line, |
| us_elapsed_absolute, |
| us_elapsed_thread); |
| |
| tr2tls_unset_self(); |
| } |
| |
| void trace2_def_param_fl(const char *file, int line, const char *param, |
| const char *value) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_param_fl) |
| tgt_j->pfn_param_fl(file, line, param, value); |
| } |
| |
| void trace2_def_repo_fl(const char *file, int line, struct repository *repo) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| |
| if (!trace2_enabled) |
| return; |
| |
| if (repo->trace2_repo_id) |
| return; |
| |
| repo->trace2_repo_id = tr2tls_locked_increment(&tr2_next_repo_id); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_repo_fl) |
| tgt_j->pfn_repo_fl(file, line, repo); |
| } |
| |
| void trace2_region_enter_printf_va_fl(const char *file, int line, |
| const char *category, const char *label, |
| const struct repository *repo, |
| const char *fmt, va_list ap) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| /* |
| * Print the region-enter message at the current nesting |
| * (indentation) level and then push a new level. |
| * |
| * We expect each target function to treat 'ap' as constant |
| * and use va_copy. |
| */ |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_region_enter_printf_va_fl) |
| tgt_j->pfn_region_enter_printf_va_fl( |
| file, line, us_elapsed_absolute, category, |
| label, repo, fmt, ap); |
| |
| tr2tls_push_self(us_now); |
| } |
| |
| void trace2_region_enter_fl(const char *file, int line, const char *category, |
| const char *label, const struct repository *repo, ...) |
| { |
| va_list ap; |
| va_start(ap, repo); |
| trace2_region_enter_printf_va_fl(file, line, category, label, repo, |
| NULL, ap); |
| va_end(ap); |
| |
| } |
| |
| void trace2_region_enter_printf_fl(const char *file, int line, |
| const char *category, const char *label, |
| const struct repository *repo, |
| const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| trace2_region_enter_printf_va_fl(file, line, category, label, repo, fmt, |
| ap); |
| va_end(ap); |
| } |
| |
| void trace2_region_leave_printf_va_fl(const char *file, int line, |
| const char *category, const char *label, |
| const struct repository *repo, |
| const char *fmt, va_list ap) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_region; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| /* |
| * Get the elapsed time in the current region before we |
| * pop it off the stack. Pop the stack. And then print |
| * the perf message at the new (shallower) level so that |
| * it lines up with the corresponding push/enter. |
| */ |
| us_elapsed_region = tr2tls_region_elasped_self(us_now); |
| |
| tr2tls_pop_self(); |
| |
| /* |
| * We expect each target function to treat 'ap' as constant |
| * and use va_copy. |
| */ |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_region_leave_printf_va_fl) |
| tgt_j->pfn_region_leave_printf_va_fl( |
| file, line, us_elapsed_absolute, |
| us_elapsed_region, category, label, repo, fmt, |
| ap); |
| } |
| |
| void trace2_region_leave_fl(const char *file, int line, const char *category, |
| const char *label, const struct repository *repo, ...) |
| { |
| va_list ap; |
| va_start(ap, repo); |
| trace2_region_leave_printf_va_fl(file, line, category, label, repo, |
| NULL, ap); |
| va_end(ap); |
| } |
| |
| void trace2_region_leave_printf_fl(const char *file, int line, |
| const char *category, const char *label, |
| const struct repository *repo, |
| const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| trace2_region_leave_printf_va_fl(file, line, category, label, repo, fmt, |
| ap); |
| va_end(ap); |
| } |
| |
| void trace2_data_string_fl(const char *file, int line, const char *category, |
| const struct repository *repo, const char *key, |
| const char *value) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_region; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| us_elapsed_region = tr2tls_region_elasped_self(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_data_fl) |
| tgt_j->pfn_data_fl(file, line, us_elapsed_absolute, |
| us_elapsed_region, category, repo, |
| key, value); |
| } |
| |
| void trace2_data_intmax_fl(const char *file, int line, const char *category, |
| const struct repository *repo, const char *key, |
| intmax_t value) |
| { |
| struct strbuf buf_string = STRBUF_INIT; |
| |
| if (!trace2_enabled) |
| return; |
| |
| strbuf_addf(&buf_string, "%" PRIdMAX, value); |
| trace2_data_string_fl(file, line, category, repo, key, buf_string.buf); |
| strbuf_release(&buf_string); |
| } |
| |
| void trace2_data_json_fl(const char *file, int line, const char *category, |
| const struct repository *repo, const char *key, |
| const struct json_writer *value) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| uint64_t us_elapsed_region; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| us_elapsed_region = tr2tls_region_elasped_self(us_now); |
| |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_data_json_fl) |
| tgt_j->pfn_data_json_fl(file, line, us_elapsed_absolute, |
| us_elapsed_region, category, |
| repo, key, value); |
| } |
| |
| void trace2_printf_va_fl(const char *file, int line, const char *fmt, |
| va_list ap) |
| { |
| struct tr2_tgt *tgt_j; |
| int j; |
| uint64_t us_now; |
| uint64_t us_elapsed_absolute; |
| |
| if (!trace2_enabled) |
| return; |
| |
| us_now = getnanotime() / 1000; |
| us_elapsed_absolute = tr2tls_absolute_elapsed(us_now); |
| |
| /* |
| * We expect each target function to treat 'ap' as constant |
| * and use va_copy. |
| */ |
| for_each_wanted_builtin (j, tgt_j) |
| if (tgt_j->pfn_printf_va_fl) |
| tgt_j->pfn_printf_va_fl(file, line, us_elapsed_absolute, |
| fmt, ap); |
| } |
| |
| void trace2_printf_fl(const char *file, int line, const char *fmt, ...) |
| { |
| va_list ap; |
| |
| va_start(ap, fmt); |
| trace2_printf_va_fl(file, line, fmt, ap); |
| va_end(ap); |
| } |
| |
| const char *trace2_session_id(void) |
| { |
| return tr2_sid_get(); |
| } |