diff options
Diffstat (limited to 'tools/perf')
| -rw-r--r-- | tools/perf/Makefile | 2 | ||||
| -rw-r--r-- | tools/perf/util/trace-event-parse.c | 3135 | ||||
| -rw-r--r-- | tools/perf/util/trace-event.h | 275 | ||||
| -rw-r--r-- | tools/perf/util/trace-parse-events.c | 3125 | ||||
| -rw-r--r-- | tools/perf/util/trace-parse-events.h | 273 |
5 files changed, 3405 insertions, 3405 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index e98e14c88532..819102342985 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -292,6 +292,7 @@ LIB_H += util/hist.h LIB_H += util/thread.h LIB_H += util/thread_map.h LIB_H += util/trace-event.h +LIB_H += util/trace-parse-events.h LIB_H += util/probe-finder.h LIB_H += util/dwarf-aux.h LIB_H += util/probe-event.h @@ -353,6 +354,7 @@ LIB_OBJS += $(OUTPUT)util/pmu-bison.o LIB_OBJS += $(OUTPUT)util/trace-event-read.o LIB_OBJS += $(OUTPUT)util/trace-event-info.o LIB_OBJS += $(OUTPUT)util/trace-event-scripting.o +LIB_OBJS += $(OUTPUT)util/trace-parse-events.o LIB_OBJS += $(OUTPUT)util/svghelper.o LIB_OBJS += $(OUTPUT)util/sort.o LIB_OBJS += $(OUTPUT)util/hist.o diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index dfd1bd8371a4..94775199644e 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -1,3142 +1,7 @@ -/* - * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License (not later!) - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * The parts for function graph printing was taken and modified from the - * Linux Kernel that were written by Frederic Weisbecker. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <string.h> -#include <errno.h> - #include "../perf.h" #include "util.h" #include "trace-event.h" -int header_page_ts_offset; -int header_page_ts_size; -int header_page_size_offset; -int header_page_size_size; -int header_page_overwrite_offset; -int header_page_overwrite_size; -int header_page_data_offset; -int header_page_data_size; - -bool latency_format; - -static char *input_buf; -static unsigned long long input_buf_ptr; -static unsigned long long input_buf_siz; - -static int cpus; -static int long_size; -static int is_flag_field; -static int is_symbolic_field; - -static struct format_field * -find_any_field(struct event *event, const char *name); - -static void init_input_buf(char *buf, unsigned long long size) -{ - input_buf = buf; - input_buf_siz = size; - input_buf_ptr = 0; -} - -struct cmdline { - char *comm; - int pid; -}; - -static struct cmdline *cmdlines; -static int cmdline_count; - -static int cmdline_cmp(const void *a, const void *b) -{ - const struct cmdline *ca = a; - const struct cmdline *cb = b; - - if (ca->pid < cb->pid) - return -1; - if (ca->pid > cb->pid) - return 1; - - return 0; -} - -void parse_cmdlines(char *file, int size __unused) -{ - struct cmdline_list { - struct cmdline_list *next; - char *comm; - int pid; - } *list = NULL, *item; - char *line; - char *next = NULL; - int i; - - line = strtok_r(file, "\n", &next); - while (line) { - item = malloc_or_die(sizeof(*item)); - sscanf(line, "%d %as", &item->pid, - (float *)(void *)&item->comm); /* workaround gcc warning */ - item->next = list; - list = item; - line = strtok_r(NULL, "\n", &next); - cmdline_count++; - } - - cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); - - i = 0; - while (list) { - cmdlines[i].pid = list->pid; - cmdlines[i].comm = list->comm; - i++; - item = list; - list = list->next; - free(item); - } - - qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); -} - -static struct func_map { - unsigned long long addr; - char *func; - char *mod; -} *func_list; -static unsigned int func_count; - -static int func_cmp(const void *a, const void *b) -{ - const struct func_map *fa = a; - const struct func_map *fb = b; - - if (fa->addr < fb->addr) - return -1; - if (fa->addr > fb->addr) - return 1; - - return 0; -} - -void parse_proc_kallsyms(char *file, unsigned int size __unused) -{ - struct func_list { - struct func_list *next; - unsigned long long addr; - char *func; - char *mod; - } *list = NULL, *item; - char *line; - char *next = NULL; - char *addr_str; - char ch; - int ret __used; - int i; - - line = strtok_r(file, "\n", &next); - while (line) { - item = malloc_or_die(sizeof(*item)); - item->mod = NULL; - ret = sscanf(line, "%as %c %as\t[%as", - (float *)(void *)&addr_str, /* workaround gcc warning */ - &ch, - (float *)(void *)&item->func, - (float *)(void *)&item->mod); - item->addr = strtoull(addr_str, NULL, 16); - free(addr_str); - - /* truncate the extra ']' */ - if (item->mod) - item->mod[strlen(item->mod) - 1] = 0; - - - item->next = list; - list = item; - line = strtok_r(NULL, "\n", &next); - func_count++; - } - - func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1)); - - i = 0; - while (list) { - func_list[i].func = list->func; - func_list[i].addr = list->addr; - func_list[i].mod = list->mod; - i++; - item = list; - list = list->next; - free(item); - } - - qsort(func_list, func_count, sizeof(*func_list), func_cmp); - - /* - * Add a special record at the end. - */ - func_list[func_count].func = NULL; - func_list[func_count].addr = 0; - func_list[func_count].mod = NULL; -} - -/* - * We are searching for a record in between, not an exact - * match. - */ -static int func_bcmp(const void *a, const void *b) -{ - const struct func_map *fa = a; - const struct func_map *fb = b; - - if ((fa->addr == fb->addr) || - - (fa->addr > fb->addr && - fa->addr < (fb+1)->addr)) - return 0; - - if (fa->addr < fb->addr) - return -1; - - return 1; -} - -static struct func_map *find_func(unsigned long long addr) -{ - struct func_map *func; - struct func_map key; - - key.addr = addr; - - func = bsearch(&key, func_list, func_count, sizeof(*func_list), - func_bcmp); - - return func; -} - -void print_funcs(void) -{ - int i; - - for (i = 0; i < (int)func_count; i++) { - printf("%016llx %s", - func_list[i].addr, - func_list[i].func); - if (func_list[i].mod) - printf(" [%s]\n", func_list[i].mod); - else - printf("\n"); - } -} - -static struct printk_map { - unsigned long long addr; - char *printk; -} *printk_list; -static unsigned int printk_count; - -static int printk_cmp(const void *a, const void *b) -{ - const struct func_map *fa = a; - const struct func_map *fb = b; - - if (fa->addr < fb->addr) - return -1; - if (fa->addr > fb->addr) - return 1; - - return 0; -} - -static struct printk_map *find_printk(unsigned long long addr) -{ - struct printk_map *printk; - struct printk_map key; - - key.addr = addr; - - printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), - printk_cmp); - - return printk; -} - -void parse_ftrace_printk(char *file, unsigned int size __unused) -{ - struct printk_list { - struct printk_list *next; - unsigned long long addr; - char *printk; - } *list = NULL, *item; - char *line; - char *next = NULL; - char *addr_str; - int i; - - line = strtok_r(file, "\n", &next); - while (line) { - addr_str = strsep(&line, ":"); - if (!line) { - warning("error parsing print strings"); - break; - } - item = malloc_or_die(sizeof(*item)); - item->addr = strtoull(addr_str, NULL, 16); - /* fmt still has a space, skip it */ - item->printk = strdup(line+1); - item->next = list; - list = item; - line = strtok_r(NULL, "\n", &next); - printk_count++; - } - - printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); - - i = 0; - while (list) { - printk_list[i].printk = list->printk; - printk_list[i].addr = list->addr; - i++; - item = list; - list = list->next; - free(item); - } - - qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); -} - -void print_printk(void) -{ - int i; - - for (i = 0; i < (int)printk_count; i++) { - printf("%016llx %s\n", - printk_list[i].addr, - printk_list[i].printk); - } -} - -static struct event *alloc_event(void) -{ - struct event *event; - - event = malloc_or_die(sizeof(*event)); - memset(event, 0, sizeof(*event)); - - return event; -} - -enum event_type { - EVENT_ERROR, - EVENT_NONE, - EVENT_SPACE, - EVENT_NEWLINE, - EVENT_OP, - EVENT_DELIM, - EVENT_ITEM, - EVENT_DQUOTE, - EVENT_SQUOTE, -}; - -static struct event *event_list; - -static void add_event(struct event *event) -{ - event->next = event_list; - event_list = event; -} - -static int event_item_type(enum event_type type) -{ - switch (type) { - case EVENT_ITEM ... EVENT_SQUOTE: - return 1; - case EVENT_ERROR ... EVENT_DELIM: - default: - return 0; - } -} - -static void free_arg(struct print_arg *arg) -{ - if (!arg) - return; - - switch (arg->type) { - case PRINT_ATOM: - if (arg->atom.atom) - free(arg->atom.atom); - break; - case PRINT_NULL: - case PRINT_FIELD ... PRINT_OP: - default: - /* todo */ - break; - } - - free(arg); -} - -static enum event_type get_type(int ch) -{ - if (ch == '\n') - return EVENT_NEWLINE; - if (isspace(ch)) - return EVENT_SPACE; - if (isalnum(ch) || ch == '_') - return EVENT_ITEM; - if (ch == '\'') - return EVENT_SQUOTE; - if (ch == '"') - return EVENT_DQUOTE; - if (!isprint(ch)) - return EVENT_NONE; - if (ch == '(' || ch == ')' || ch == ',') - return EVENT_DELIM; - - return EVENT_OP; -} - -static int __read_char(void) -{ - if (input_buf_ptr >= input_buf_siz) - return -1; - - return input_buf[input_buf_ptr++]; -} - -static int __peek_char(void) -{ - if (input_buf_ptr >= input_buf_siz) - return -1; - - return input_buf[input_buf_ptr]; -} - -static enum event_type __read_token(char **tok) -{ - char buf[BUFSIZ]; - int ch, last_ch, quote_ch, next_ch; - int i = 0; - int tok_size = 0; - enum event_type type; - - *tok = NULL; - - - ch = __read_char(); - if (ch < 0) - return EVENT_NONE; - - type = get_type(ch); - if (type == EVENT_NONE) - return type; - - buf[i++] = ch; - - switch (type) { - case EVENT_NEWLINE: - case EVENT_DELIM: - *tok = malloc_or_die(2); - (*tok)[0] = ch; - (*tok)[1] = 0; - return type; - - case EVENT_OP: - switch (ch) { - case '-': - next_ch = __peek_char(); - if (next_ch == '>') { - buf[i++] = __read_char(); - break; - } - /* fall through */ - case '+': - case '|': - case '&': - case '>': - case '<': - last_ch = ch; - ch = __peek_char(); - if (ch != last_ch) - goto test_equal; - buf[i++] = __read_char(); - switch (last_ch) { - case '>': - case '<': - goto test_equal; - default: - break; - } - break; - case '!': - case '=': - goto test_equal; - default: /* what should we do instead? */ - break; - } - buf[i] = 0; - *tok = strdup(buf); - return type; - - test_equal: - ch = __peek_char(); - if (ch == '=') - buf[i++] = __read_char(); - break; - - case EVENT_DQUOTE: - case EVENT_SQUOTE: - /* don't keep quotes */ - i--; - quote_ch = ch; - last_ch = 0; - do { - if (i == (BUFSIZ - 1)) { - buf[i] = 0; - if (*tok) { - *tok = realloc(*tok, tok_size + BUFSIZ); - if (!*tok) - return EVENT_NONE; - strcat(*tok, buf); - } else - *tok = strdup(buf); - - if (!*tok) - return EVENT_NONE; - tok_size += BUFSIZ; - i = 0; - } - last_ch = ch; - ch = __read_char(); - buf[i++] = ch; - /* the '\' '\' will cancel itself */ - if (ch == '\\' && last_ch == '\\') - last_ch = 0; - } while (ch != quote_ch || last_ch == '\\'); - /* remove the last quote */ - i--; - goto out; - - case EVENT_ERROR ... EVENT_SPACE: - case EVENT_ITEM: - default: - break; - } - - while (get_type(__peek_char()) == type) { - if (i == (BUFSIZ - 1)) { - buf[i] = 0; - if (*tok) { - *tok = realloc(*tok, tok_size + BUFSIZ); - if (!*tok) - return EVENT_NONE; - strcat(*tok, buf); - } else - *tok = strdup(buf); - - if (!*tok) - return EVENT_NONE; - tok_size += BUFSIZ; - i = 0; - } - ch = __read_char(); - buf[i++] = ch; - } - - out: - buf[i] = 0; - if (*tok) { - *tok = realloc(*tok, tok_size + i); - if (!*tok) - return EVENT_NONE; - strcat(*tok, buf); - } else - *tok = strdup(buf); - if (!*tok) - return EVENT_NONE; - - return type; -} - -static void free_token(char *tok) -{ - if (tok) - free(tok); -} - -static enum event_type read_token(char **tok) -{ - enum event_type type; - - for (;;) { - type = __read_token(tok); - if (type != EVENT_SPACE) - return type; - - free_token(*tok); - } - - /* not reached */ - return EVENT_NONE; -} - -/* no newline */ -static enum event_type read_token_item(char **tok) -{ - enum event_type type; - - for (;;) { - type = __read_token(tok); - if (type != EVENT_SPACE && type != EVENT_NEWLINE) - return type; - - free_token(*tok); - } - - /* not reached */ - return EVENT_NONE; -} - -static int test_type(enum event_type type, enum event_type expect) -{ - if (type != expect) { - warning("Error: expected type %d but read %d", - expect, type); - return -1; - } - return 0; -} - -static int __test_type_token(enum event_type type, char *token, - enum event_type expect, const char *expect_tok, - bool warn) -{ - if (type != expect) { - if (warn) - warning("Error: expected type %d but read %d", - expect, type); - return -1; - } - - if (strcmp(token, expect_tok) != 0) { - if (warn) - warning("Error: expected '%s' but read '%s'", - expect_tok, token); - return -1; - } - return 0; -} - -static int test_type_token(enum event_type type, char *token, - enum event_type expect, const char *expect_tok) -{ - return __test_type_token(type, token, expect, expect_tok, true); -} - -static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) -{ - enum event_type type; - - if (newline_ok) - type = read_token(tok); - else - type = read_token_item(tok); - return test_type(type, expect); -} - -static int read_expect_type(enum event_type expect, char **tok) -{ - return __read_expect_type(expect, tok, 1); -} - -static int __read_expected(enum event_type expect, const char *str, - int newline_ok, bool warn) -{ - enum event_type type; - char *token; - int ret; - - if (newline_ok) - type = read_token(&token); - else - type = read_token_item(&token); - - ret = __test_type_token(type, token, expect, str, warn); - - free_token(token); - - return ret; -} - -static int read_expected(enum event_type expect, const char *str) -{ - return __read_expected(expect, str, 1, true); -} - -static int read_expected_item(enum event_type expect, const char *str) -{ - return __read_expected(expect, str, 0, true); -} - -static char *event_read_name(void) -{ - char *token; - - if (read_expected(EVENT_ITEM, "name") < 0) - return NULL; - - if (read_expected(EVENT_OP, ":") < 0) - return NULL; - - if (read_expect_type(EVENT_ITEM, &token) < 0) - goto fail; - - return token; - - fail: - free_token(token); - return NULL; -} - -static int event_read_id(void) -{ - char *token; - int id = -1; - - if (read_expected_item(EVENT_ITEM, "ID") < 0) - return -1; - - if (read_expected(EVENT_OP, ":") < 0) - return -1; - - if (read_expect_type(EVENT_ITEM, &token) < 0) - goto free; - - id = strtoul(token, NULL, 0); - - free: - free_token(token); - return id; -} - -static int field_is_string(struct format_field *field) -{ - if ((field->flags & FIELD_IS_ARRAY) && - (!strstr(field->type, "char") || !strstr(field->type, "u8") || - !strstr(field->type, "s8"))) - return 1; - - return 0; -} - -static int field_is_dynamic(struct format_field *field) -{ - if (!strncmp(field->type, "__data_loc", 10)) - return 1; - - return 0; -} - -static int event_read_fields(struct event *event, struct format_field **fields) -{ - struct format_field *field = NULL; - enum event_type type; - char *token; - char *last_token; - int count = 0; - - do { - type = read_token(&token); - if (type == EVENT_NEWLINE) { - free_token(token); - return count; - } - - count++; - - if (test_type_token(type, token, EVENT_ITEM, "field")) - goto fail; - free_token(token); - - type = read_token(&token); - /* - * The ftrace fields may still use the "special" name. - * Just ignore it. - */ - if (event->flags & EVENT_FL_ISFTRACE && - type == EVENT_ITEM && strcmp(token, "special") == 0) { - free_token(token); - type = read_token(&token); - } - - if (test_type_token(type, token, EVENT_OP, ":") < 0) - return -1; - - if (read_expect_type(EVENT_ITEM, &token) < 0) - goto fail; - - last_token = token; - - field = malloc_or_die(sizeof(*field)); - memset(field, 0, sizeof(*field)); - - /* read the rest of the type */ - for (;;) { - type = read_token(&token); - if (type == EVENT_ITEM || - (type == EVENT_OP && strcmp(token, "*") == 0) || - /* - * Some of the ftrace fields are broken and have - * an illegal "." in them. - */ - (event->flags & EVENT_FL_ISFTRACE && - type == EVENT_OP && strcmp(token, ".") == 0)) { - - if (strcmp(token, "*") == 0) - field->flags |= FIELD_IS_POINTER; - - if (field->type) { - field->type = realloc(field->type, - strlen(field->type) + - strlen(last_token) + 2); - strcat(field->type, " "); - strcat(field->type, last_token); - } else - field->type = last_token; - last_token = token; - continue; - } - - break; - } - - if (!field->type) { - die("no type found"); - goto fail; - } - field->name = last_token; - - if (test_type(type, EVENT_OP)) - goto fail; - - if (strcmp(token, "[") == 0) { - enum event_type last_type = type; - char *brackets = token; - int len; - - field->flags |= FIELD_IS_ARRAY; - - type = read_token(&token); - while (strcmp(token, "]") != 0) { - if (last_type == EVENT_ITEM && - type == EVENT_ITEM) - len = 2; - else - len = 1; - last_type = type; - - brackets = realloc(brackets, - strlen(brackets) + - strlen(token) + len); - if (len == 2) - strcat(brackets, " "); - strcat(brackets, token); - free_token(token); - type = read_token(&token); - if (type == EVENT_NONE) { - die("failed to find token"); - goto fail; - } - } - - free_token(token); - - brackets = realloc(brackets, strlen(brackets) + 2); - strcat(brackets, "]"); - - /* add brackets to type */ - - type = read_token(&token); - /* - * If the next token is not an OP, then it is of - * the format: type [] item; - */ - if (type == EVENT_ITEM) { - field->type = realloc(field->type, - strlen(field->type) + - strlen(field->name) + - strlen(brackets) + 2); - strcat(field->type, " "); - strcat(field->type, field->name); - free_token(field->name); - strcat(field->type, brackets); - field->name = token; - type = read_token(&token); - } else { - field->type = realloc(field->type, - strlen(field->type) + - strlen(brackets) + 1); - strcat(field->type, brackets); - } - free(brackets); - } - - if (field_is_string(field)) { - field->flags |= FIELD_IS_STRING; - if (field_is_dynamic(field)) - field->flags |= FIELD_IS_DYNAMIC; - } - - if (test_type_token(type, token, EVENT_OP, ";")) - goto fail; - free_token(token); - - if (read_expected(EVENT_ITEM, "offset") < 0) - goto fail_expect; - - if (read_expected(EVENT_OP, ":") < 0) - goto fail_expect; - - if (read_expect_type(EVENT_ITEM, &token)) - goto fail; - field->offset = strtoul(token, NULL, 0); - free_token(token); - - if (read_expected(EVENT_OP, ";") < 0) - goto fail_expect; - - if (read_expected(EVENT_ITEM, "size") < 0) - goto fail_expect; - - if (read_expected(EVENT_OP, ":") < 0) - goto fail_expect; - - if (read_expect_type(EVENT_ITEM, &token)) - goto fail; - field->size = strtoul(token, NULL, 0); - free_token(token); - - if (read_expected(EVENT_OP, ";") < 0) - goto fail_expect; - - type = read_token(&token); - if (type != EVENT_NEWLINE) { - /* newer versions of the kernel have a "signed" type */ - if (test_type_token(type, token, EVENT_ITEM, "signed")) - goto fail; - - free_token(token); - - if (read_expected(EVENT_OP, ":") < 0) - goto fail_expect; - - if (read_expect_type(EVENT_ITEM, &token)) - goto fail; - - if (strtoul(token, NULL, 0)) - field->flags |= FIELD_IS_SIGNED; - - free_token(token); - if (read_expected(EVENT_OP, ";") < 0) - goto fail_expect; - - if (read_expect_type(EVENT_NEWLINE, &token)) - goto fail; - } - - free_token(token); - - *fields = field; - fields = &field->next; - - } while (1); - - return 0; - -fail: - free_token(token); -fail_expect: - if (field) - free(field); - return -1; -} - -static int event_read_format(struct event *event) -{ - char *token; - int ret; - - if (read_expected_item(EVENT_ITEM, "format") < 0) - return -1; - - if (read_expected(EVENT_OP, ":") < 0) - return -1; - - if (read_expect_type(EVENT_NEWLINE, &token)) - goto fail; - free_token(token); - - ret = event_read_fields(event, &event->format.common_fields); - if (ret < 0) - return ret; - event->format.nr_common = ret; - - ret = event_read_fields(event, &event->format.fields); - if (ret < 0) - return ret; - event->format.nr_fields = ret; - - return 0; - - fail: - free_token(token); - return -1; -} - -enum event_type -process_arg_token(struct event *event, struct print_arg *arg, - char **tok, enum event_type type); - -static enum event_type -process_arg(struct event *event, struct print_arg *arg, char **tok) -{ - enum event_type type; - char *token; - - type = read_token(&token); - *tok = token; - - return process_arg_token(event, arg, tok, type); -} - -static enum event_type -process_cond(struct event *event, struct print_arg *top, char **tok) -{ - struct print_arg *arg, *left, *right; - enum event_type type; - char *token = NULL; - - arg = malloc_or_die(sizeof(*arg)); - memset(arg, 0, sizeof(*arg)); - - left = malloc_or_die(sizeof(*left)); - - right = malloc_or_die(sizeof(*right)); - - arg->type = PRINT_OP; - arg->op.left = left; - arg->op.right = right; - - *tok = NULL; - type = process_arg(event, left, &token); - if (test_type_token(type, token, EVENT_OP, ":")) - goto out_free; - - arg->op.op = token; - - type = process_arg(event, right, &token); - - top->op.right = arg; - - *tok = token; - return type; - -out_free: - free_token(*tok); - free(right); - free(left); - free_arg(arg); - return EVENT_ERROR; -} - -static enum event_type -process_array(struct event *event, struct print_arg *top, char **tok) -{ - struct print_arg *arg; - enum event_type type; - char *token = NULL; - - arg = malloc_or_die(sizeof(*arg)); - memset(arg, 0, sizeof(*arg)); - - *tok = NULL; - type = process_arg(event, arg, &token); - if (test_type_token(type, token, EVENT_OP, "]")) - goto out_free; - - top->op.right = arg; - - free_token(token); - type = read_token_item(&token); - *tok = token; - - return type; - -out_free: - free_token(*tok); - free_arg(arg); - return EVENT_ERROR; -} - -static int get_op_prio(char *op) -{ - if (!op[1]) { - switch (op[0]) { - case '*': - case '/': - case '%': - return 6; - case '+': - case '-': - return 7; - /* '>>' and '<<' are 8 */ - case '<': - case '>': - return 9; - /* '==' and '!=' are 10 */ - case '&': - return 11; - case '^': - return 12; - case '|': - return 13; - case '?': - return 16; - default: - die("unknown op '%c'", op[0]); - return -1; - } - } else { - if (strcmp(op, "++") == 0 || - strcmp(op, "--") == 0) { - return 3; - } else if (strcmp(op, ">>") == 0 || - strcmp(op, "<<") == 0) { - return 8; - } else if (strcmp(op, ">=") == 0 || - strcmp(op, "<=") == 0) { - return 9; - } else if (strcmp(op, "==") == 0 || - strcmp(op, "!=") == 0) { - return 10; - } else if (strcmp(op, "&&") == 0) { - return 14; - } else if (strcmp(op, "||") == 0) { - return 15; - } else { - die("unknown op '%s'", op); - return -1; - } - } -} - -static void set_op_prio(struct print_arg *arg) -{ - - /* single ops are the greatest */ - if (!arg->op.left || arg->op.left->type == PRINT_NULL) { - arg->op.prio = 0; - return; - } - - arg->op.prio = get_op_prio(arg->op.op); -} - -static enum event_type -process_op(struct event *event, struct print_arg *arg, char **tok) -{ - struct print_arg *left, *right = NULL; - enum event_type type; - char *token; - - /* the op is passed in via tok */ - token = *tok; - - if (arg->type == PRINT_OP && !arg->op.left) { - /* handle single op */ - if (token[1]) { - die("bad op token %s", token); - return EVENT_ERROR; - } - switch (token[0]) { - case '!': - case '+': - case '-': - break; - default: - die("bad op token %s", token); - return EVENT_ERROR; - } - - /* make an empty left */ - left = malloc_or_die(sizeof(*left)); - left->type = PRINT_NULL; - arg->op.left = left; - - right = malloc_or_die(sizeof(*right)); - arg->op.right = right; - - type = process_arg(event, right, tok); - - } else if (strcmp(token, "?") == 0) { - - left = malloc_or_die(sizeof(*left)); - /* copy the top arg to the left */ - *left = *arg; - - arg->type = PRINT_OP; - arg->op.op = token; - arg->op.left = left; - arg->op.prio = 0; - - type = process_cond(event, arg, tok); - - } else if (strcmp(token, ">>") == 0 || - strcmp(token, "<<") == 0 || - strcmp(token, "&") == 0 || - strcmp(token, "|") == 0 || - strcmp(token, "&&") == 0 || - strcmp(token, "||") == 0 || - strcmp(token, "-") == 0 || - strcmp(token, "+") == 0 || - strcmp(token, "*") == 0 || - strcmp(token, "^") == 0 || - strcmp(token, "/") == 0 || - strcmp(token, "<") == 0 || - strcmp(token, ">") == 0 || - strcmp(token, "==") == 0 || - strcmp(token, "!=") == 0) { - - left = malloc_or_die(sizeof(*left)); - - /* copy the top arg to the left */ - *left = *arg; - - arg->type = PRINT_OP; - arg->op.op = token; - arg->op.left = left; - - set_op_prio(arg); - - right = malloc_or_die(sizeof(*right)); - - type = read_token_item(&token); - *tok = token; - - /* could just be a type pointer */ - if ((strcmp(arg->op.op, "*") == 0) && - type == EVENT_DELIM && (strcmp(token, ")") == 0)) { - if (left->type != PRINT_ATOM) - die("bad pointer type"); - left->atom.atom = realloc(left->atom.atom, - sizeof(left->atom.atom) + 3); - strcat(left->atom.atom, " *"); - *arg = *left; - free(arg); - - return type; - } - - type = process_arg_token(event, right, tok, type); - - arg->op.right = right; - - } else if (strcmp(token, "[") == 0) { - - left = malloc_or_die(sizeof(*left)); - *left = *arg; - - arg->type = PRINT_OP; - arg->op.op = token; - arg->op.left = left; - - arg->op.prio = 0; - type = process_array(event, arg, tok); - - } else { - warning("unknown op '%s'", token); - event->flags |= EVENT_FL_FAILED; - /* the arg is now the left side */ - return EVENT_NONE; - } - - if (type == EVENT_OP) { - int prio; - - /* higher prios need to be closer to the root */ - prio = get_op_prio(*tok); - - if (prio > arg->op.prio) - return process_op(event, arg, tok); - - return process_op(event, right, tok); - } - - return type; -} - -static enum event_type -process_entry(struct event *event __unused, struct print_arg *arg, - char **tok) -{ - enum event_type type; - char *field; - char *token; - - if (read_expected(EVENT_OP, "->") < 0) - return EVENT_ERROR; - - if (read_expect_type(EVENT_ITEM, &token) < 0) - goto fail; - field = token; - - arg->type = PRINT_FIELD; - arg->field.name = field; - - if (is_flag_field) { - arg->field.field = find_any_field(event, arg->field.name); - arg->field.field->flags |= FIELD_IS_FLAG; - is_flag_field = 0; - } else if (is_symbolic_field) { - arg->field.field = find_any_field(event, arg->field.name); - arg->field.field->flags |= FIELD_IS_SYMBOLIC; - is_symbolic_field = 0; - } - - type = read_token(&token); - *tok = token; - - return type; - -fail: - free_token(token); - return EVENT_ERROR; -} - -static char *arg_eval (struct print_arg *arg); - -static long long arg_num_eval(struct print_arg *arg) -{ - long long left, right; - long long val = 0; - - switch (arg->type) { - case PRINT_ATOM: - val = strtoll(arg->atom.atom, NULL, 0); - break; - case PRINT_TYPE: - val = arg_num_eval(arg->typecast.item); - break; - case PRINT_OP: - switch (arg->op.op[0]) { - case '|': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - if (arg->op.op[1]) - val = left || right; - else - val = left | right; - break; - case '&': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - if (arg->op.op[1]) - val = left && right; - else - val = left & right; - break; - case '<': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - switch (arg->op.op[1]) { - case 0: - val = left < right; - break; - case '<': - val = left << right; - break; - case '=': - val = left <= right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - case '>': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - switch (arg->op.op[1]) { - case 0: - val = left > right; - break; - case '>': - val = left >> right; - break; - case '=': - val = left >= right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - case '=': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - - if (arg->op.op[1] != '=') - die("unknown op '%s'", arg->op.op); - - val = left == right; - break; - case '!': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - - switch (arg->op.op[1]) { - case '=': - val = left != right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - case '+': - left = arg_num_eval(arg->op.left); - right = arg_num_eval(arg->op.right); - val = left + right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - - case PRINT_NULL: - case PRINT_FIELD ... PRINT_SYMBOL: - case PRINT_STRING: - default: - die("invalid eval type %d", arg->type); - - } - return val; -} - -static char *arg_eval (struct print_arg *arg) -{ - long long val; - static char buf[20]; - - switch (arg->type) { - case PRINT_ATOM: - return arg->atom.atom; - case PRINT_TYPE: - return arg_eval(arg->typecast.item); - case PRINT_OP: - val = arg_num_eval(arg); - sprintf(buf, "%lld", val); - return buf; - - case PRINT_NULL: - case PRINT_FIELD ... PRINT_SYMBOL: - case PRINT_STRING: - default: - die("invalid eval type %d", arg->type); - break; - } - - return NULL; -} - -static enum event_type -process_fields(struct event *event, struct print_flag_sym **list, char **tok) -{ - enum event_type type; - struct print_arg *arg = NULL; - struct print_flag_sym *field; - char *token = NULL; - char *value; - - do { - free_token(token); - type = read_token_item(&token); - if (test_type_token(type, token, EVENT_OP, "{")) - break; - - arg = malloc_or_die(sizeof(*arg)); - - free_token(token); - type = process_arg(event, arg, &token); - - if (type == EVENT_OP) - type = process_op(event, arg, &token); - - if (type == EVENT_ERROR) - goto out_free; - - if (test_type_token(type, token, EVENT_DELIM, ",")) - goto out_free; - - field = malloc_or_die(sizeof(*field)); - memset(field, 0, sizeof(*field)); - - value = arg_eval(arg); - field->value = strdup(value); - - free_token(token); - type = process_arg(event, arg, &token); - if (test_type_token(type, token, EVENT_OP, "}")) - goto out_free; - - value = arg_eval(arg); - field->str = strdup(value); - free_arg(arg); - arg = NULL; - - *list = field; - list = &field->next; - - free_token(token); - type = read_token_item(&token); - } while (type == EVENT_DELIM && strcmp(token, ",") == 0); - - *tok = token; - return type; - -out_free: - free_arg(arg); - free_token(token); - - return EVENT_ERROR; -} - -static enum event_type -process_flags(struct event *event, struct print_arg *arg, char **tok) -{ - struct print_arg *field; - enum event_type type; - char *token; - - memset(arg, 0, sizeof(*arg)); - arg->type = PRINT_FLAGS; - - if (read_expected_item(EVENT_DELIM, "(") < 0) - return EVENT_ERROR; - - field = malloc_or_die(sizeof(*field)); - - type = process_arg(event, field, &token); - while (type == EVENT_OP) - type = process_op(event, field, &token); - if (test_type_token(type, token, EVENT_DELIM, ",")) - goto out_free; - - arg->flags.field = field; - - type = read_token_item(&token); - if (event_item_type(type)) { - arg->flags.delim = token; - type = read_token_item(&token); - } - - if (test_type_token(type, token, EVENT_DELIM, ",")) - goto out_free; - - type = process_fields(event, &arg->flags.flags, &token); - if (test_type_token(type, token, EVENT_DELIM, ")")) - goto out_free; - - free_token(token); - type = read_token_item(tok); - return type; - -out_free: - free_token(token); - return EVENT_ERROR; -} - -static enum event_type -process_symbols(struct event *event, struct print_arg *arg, char **tok) -{ - struct print_arg *field; - enum event_type type; - char *token; - - memset(arg, 0, sizeof(*arg)); - arg->type = PRINT_SYMBOL; - - if (read_expected_item(EVENT_DELIM, "(") < 0) - return EVENT_ERROR; - - field = malloc_or_die(sizeof(*field)); - - type = process_arg(event, field, &token); - if (test_type_token(type, token, EVENT_DELIM, ",")) - goto out_free; - - arg->symbol.field = field; - - type = process_fields(event, &arg->symbol.symbols, &token); - if (test_type_token(type, token, EVENT_DELIM, ")")) - goto out_free; - - free_token(token); - type = read_token_item(tok); - return type; - -out_free: - free_token(token); - return EVENT_ERROR; -} - -static enum event_type -process_paren(struct event *event, struct print_arg *arg, char **tok) -{ - struct print_arg *item_arg; - enum event_type type; - char *token; - - type = process_arg(event, arg, &token); - - if (type == EVENT_ERROR) - return EVENT_ERROR; - - if (type == EVENT_OP) - type = process_op(event, arg, &token); - - if (type == EVENT_ERROR) - return EVENT_ERROR; - - if (test_type_token(type, token, EVENT_DELIM, ")")) { - free_token(token); - return EVENT_ERROR; - } - - free_token(token); - type = read_token_item(&token); - - /* - * If the next token is an item or another open paren, then - * this was a typecast. - */ - if (event_item_type(type) || - (type == EVENT_DELIM && strcmp(token, "(") == 0)) { - - /* make this a typecast and contine */ - - /* prevous must be an atom */ - if (arg->type != PRINT_ATOM) - die("previous needed to be PRINT_ATOM"); - - item_arg = malloc_or_die(sizeof(*item_arg)); - - arg->type = PRINT_TYPE; - arg->typecast.type = arg->atom.atom; - arg->typecast.item = item_arg; - type = process_arg_token(event, item_arg, &token, type); - - } - - *tok = token; - return type; -} - - -static enum event_type -process_str(struct event *event __unused, struct print_arg *arg, char **tok) -{ - enum event_type type; - char *token; - - if (read_expected(EVENT_DELIM, "(") < 0) - return EVENT_ERROR; - - if (read_expect_type(EVENT_ITEM, &token) < 0) - goto fail; - - arg->type = PRINT_STRING; - arg->string.string = token; - arg->string.offset = -1; - - if (read_expected(EVENT_DELIM, ")") < 0) - return EVENT_ERROR; - - type = read_token(&token); - *tok = token; - - return type; -fail: - free_token(token); - return EVENT_ERROR; -} - -enum event_type -process_arg_token(struct event *event, struct print_arg *arg, - char **tok, enum event_type type) -{ - char *token; - char *atom; - - token = *tok; - - switch (type) { - case EVENT_ITEM: - if (strcmp(token, "REC") == 0) { - free_token(token); - type = process_entry(event, arg, &token); - } else if (strcmp(token, "__print_flags") == 0) { - free_token(token); - is_flag_field = 1; - type = process_flags(event, arg, &token); - } else if (strcmp(token, "__print_symbolic") == 0) { - free_token(token); - is_symbolic_field = 1; - type = process_symbols(event, arg, &token); - } else if (strcmp(token, "__get_str") == 0) { - free_token(token); - type = process_str(event, arg, &token); - } else { - atom = token; - /* test the next token */ - type = read_token_item(&token); - - /* atoms can be more than one token long */ - while (type == EVENT_ITEM) { - atom = realloc(atom, strlen(atom) + strlen(token) + 2); - strcat(atom, " "); - strcat(atom, token); - free_token(token); - type = read_token_item(&token); - } - - /* todo, test for function */ - - arg->type = PRINT_ATOM; - arg->atom.atom = atom; - } - break; - case EVENT_DQUOTE: - case EVENT_SQUOTE: - arg->type = PRINT_ATOM; - arg->atom.atom = token; - type = read_token_item(&token); - break; - case EVENT_DELIM: - if (strcmp(token, "(") == 0) { - free_token(token); - type = process_paren(event, arg, &token); - break; - } - case EVENT_OP: - /* handle single ops */ - arg->type = PRINT_OP; - arg->op.op = token; - arg->op.left = NULL; - type = process_op(event, arg, &token); - - break; - - case EVENT_ERROR ... EVENT_NEWLINE: - default: - die("unexpected type %d", type); - } - *tok = token; - - return type; -} - -static int event_read_print_args(struct event *event, struct print_arg **list) -{ - enum event_type type = EVENT_ERROR; - struct print_arg *arg; - char *token; - int args = 0; - - do { - if (type == EVENT_NEWLINE) { - free_token(token); - type = read_token_item(&token); - continue; - } - - arg = malloc_or_die(sizeof(*arg)); - memset(arg, 0, sizeof(*arg)); - - type = process_arg(event, arg, &token); - - if (type == EVENT_ERROR) { - free_arg(arg); - return -1; - } - - *list = arg; - args++; - - if (type == EVENT_OP) { - type = process_op(event, arg, &token); - list = &arg->next; - continue; - } - - if (type == EVENT_DELIM && strcmp(token, ",") == 0) { - free_token(token); - *list = arg; - list = &arg->next; - continue; - } - break; - } while (type != EVENT_NONE); - - if (type != EVENT_NONE) - free_token(token); - - return args; -} - -static int event_read_print(struct event *event) -{ - enum event_type type; - char *token; - int ret; - - if (read_expected_item(EVENT_ITEM, "print") < 0) - return -1; - - if (read_expected(EVENT_ITEM, "fmt") < 0) - return -1; - - if (read_expected(EVENT_OP, ":") < 0) - return -1; - - if (read_expect_type(EVENT_DQUOTE, &token) < 0) - goto fail; - - concat: - event->print_fmt.format = token; - event->print_fmt.args = NULL; - - /* ok to have no arg */ - type = read_token_item(&token); - - if (type == EVENT_NONE) - return 0; - - /* Handle concatination of print lines */ - if (type == EVENT_DQUOTE) { - char *cat; - - cat = malloc_or_die(strlen(event->print_fmt.format) + - strlen(token) + 1); - strcpy(cat, event->print_fmt.format); - strcat(cat, token); - free_token(token); - free_token(event->print_fmt.format); - event->print_fmt.format = NULL; - token = cat; - goto concat; - } - - if (test_type_token(type, token, EVENT_DELIM, ",")) - goto fail; - - free_token(token); - - ret = event_read_print_args(event, &event->print_fmt.args); - if (ret < 0) - return -1; - - return ret; - - fail: - free_token(token); - return -1; -} - -static struct format_field * -find_common_field(struct event *event, const char *name) -{ - struct format_field *format; - - for (format = event->format.common_fields; - format; format = format->next) { - if (strcmp(format->name, name) == 0) - break; - } - - return format; -} - -static struct format_field * -find_field(struct event *event, const char *name) -{ - struct format_field *format; - - for (format = event->format.fields; - format; format = format->next) { - if (strcmp(format->name, name) == 0) - break; - } - - return format; -} - -static struct format_field * -find_any_field(struct event *event, const char *name) -{ - struct format_field *format; - - format = find_common_field(event, name); - if (format) - return format; - return find_field(event, name); -} - -unsigned long long read_size(void *ptr, int size) -{ - switch (size) { - case 1: - return *(unsigned char *)ptr; - case 2: - return data2host2(ptr); - case 4: - return data2host4(ptr); - case 8: - return data2host8(ptr); - default: - /* BUG! */ - return 0; - } -} - -unsigned long long -raw_field_value(struct event *event, const char *name, void *data) -{ - struct format_field *field; - - field = find_any_field(event, name); - if (!field) - return 0ULL; - - return read_size(data + field->offset, field->size); -} - -void *raw_field_ptr(struct event *event, const char *name, void *data) -{ - struct format_field *field; - - field = find_any_field(event, name); - if (!field) - return NULL; - - if (field->flags & FIELD_IS_DYNAMIC) { - int offset; - - offset = *(int *)(data + field->offset); - offset &= 0xffff; - - return data + offset; - } - - return data + field->offset; -} - -static int get_common_info(const char *type, int *offset, int *size) -{ - struct event *event; - struct format_field *field; - - /* - * All events should have the same common elements. - * Pick any event to find where the type is; - */ - if (!event_list) - die("no event_list!"); - - event = event_list; - field = find_common_field(event, type); - if (!field) - die("field '%s' not found", type); - - *offset = field->offset; - *size = field->size; - - return 0; -} - -static int __parse_common(void *data, int *size, int *offset, - const char *name) -{ - int ret; - - if (!*size) { - ret = get_common_info(name, offset, size); - if (ret < 0) - return ret; - } - return read_size(data + *offset, *size); -} - -int trace_parse_common_type(void *data) -{ - static int type_offset; - static int type_size; - - return __parse_common(data, &type_size, &type_offset, - "common_type"); -} - -int trace_parse_common_pid(void *data) -{ - static int pid_offset; - static int pid_size; - - return __parse_common(data, &pid_size, &pid_offset, - "common_pid"); -} - -int parse_common_pc(void *data) -{ - static int pc_offset; - static int pc_size; - - return __parse_common(data, &pc_size, &pc_offset, - "common_preempt_count"); -} - -int parse_common_flags(void *data) -{ - static int flags_offset; - static int flags_size; - - return __parse_common(data, &flags_size, &flags_offset, - "common_flags"); -} - -int parse_common_lock_depth(void *data) -{ - static int ld_offset; - static int ld_size; - int ret; - - ret = __parse_common(data, &ld_size, &ld_offset, - "common_lock_depth"); - if (ret < 0) - return -1; - - return ret; -} - -struct event *trace_find_event(int id) -{ - struct event *event; - - for (event = event_list; event; event = event->next) { - if (event->id == id) - break; - } - return event; -} - -struct event *trace_find_next_event(struct event *event) -{ - if (!event) - return event_list; - - return event->next; -} - -static unsigned long long eval_num_arg(void *data, int size, - struct event *event, struct print_arg *arg) -{ - unsigned long long val = 0; - unsigned long long left, right; - struct print_arg *larg; - - switch (arg->type) { - case PRINT_NULL: - /* ?? */ - return 0; - case PRINT_ATOM: - return strtoull(arg->atom.atom, NULL, 0); - case PRINT_FIELD: - if (!arg->field.field) { - arg->field.field = find_any_field(event, arg->field.name); - if (!arg->field.field) - die("field %s not found", arg->field.name); - } - /* must be a number */ - val = read_size(data + arg->field.field->offset, - arg->field.field->size); - break; - case PRINT_FLAGS: - case PRINT_SYMBOL: - break; - case PRINT_TYPE: - return eval_num_arg(data, size, event, arg->typecast.item); - case PRINT_STRING: - return 0; - break; - case PRINT_OP: - if (strcmp(arg->op.op, "[") == 0) { - /* - * Arrays are special, since we don't want - * to read the arg as is. - */ - if (arg->op.left->type != PRINT_FIELD) - goto default_op; /* oops, all bets off */ - larg = arg->op.left; - if (!larg->field.field) { - larg->field.field = - find_any_field(event, larg->field.name); - if (!larg->field.field) - die("field %s not found", larg->field.name); - } - right = eval_num_arg(data, size, event, arg->op.right); - val = read_size(data + larg->field.field->offset + - right * long_size, long_size); - break; - } - default_op: - left = eval_num_arg(data, size, event, arg->op.left); - right = eval_num_arg(data, size, event, arg->op.right); - switch (arg->op.op[0]) { - case '|': - if (arg->op.op[1]) - val = left || right; - else - val = left | right; - break; - case '&': - if (arg->op.op[1]) - val = left && right; - else - val = left & right; - break; - case '<': - switch (arg->op.op[1]) { - case 0: - val = left < right; - break; - case '<': - val = left << right; - break; - case '=': - val = left <= right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - case '>': - switch (arg->op.op[1]) { - case 0: - val = left > right; - break; - case '>': - val = left >> right; - break; - case '=': - val = left >= right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - case '=': - if (arg->op.op[1] != '=') - die("unknown op '%s'", arg->op.op); - val = left == right; - break; - case '-': - val = left - right; - break; - case '+': - val = left + right; - break; - default: - die("unknown op '%s'", arg->op.op); - } - break; - default: /* not sure what to do there */ - return 0; - } - return val; -} - -struct flag { - const char *name; - unsigned long long value; -}; - -static const struct flag flags[] = { - { "HI_SOFTIRQ", 0 }, - { "TIMER_SOFTIRQ", 1 }, - { "NET_TX_SOFTIRQ", 2 }, - { "NET_RX_SOFTIRQ", 3 }, - { "BLOCK_SOFTIRQ", 4 }, - { "BLOCK_IOPOLL_SOFTIRQ", 5 }, - { "TASKLET_SOFTIRQ", 6 }, - { "SCHED_SOFTIRQ", 7 }, - { "HRTIMER_SOFTIRQ", 8 }, - { "RCU_SOFTIRQ", 9 }, - - { "HRTIMER_NORESTART", 0 }, - { "HRTIMER_RESTART", 1 }, -}; - -unsigned long long eval_flag(const char *flag) -{ - int i; - - /* - * Some flags in the format files do not get converted. - * If the flag is not numeric, see if it is something that - * we already know about. - */ - if (isdigit(flag[0])) - return strtoull(flag, NULL, 0); - - for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) - if (strcmp(flags[i].name, flag) == 0) - return flags[i].value; - - return 0; -} - -static void print_str_arg(void *data, int size, - struct event *event, struct print_arg *arg) -{ - struct print_flag_sym *flag; - unsigned long long val, fval; - char *str; - int print; - - switch (arg->type) { - case PRINT_NULL: - /* ?? */ - return; - case PRINT_ATOM: - printf("%s", arg->atom.atom); - return; - case PRINT_FIELD: - if (!arg->field.field) { - arg->field.field = find_any_field(event, arg->field.name); - if (!arg->field.field) - die("field %s not found", arg->field.name); - } - str = malloc_or_die(arg->field.field->size + 1); - memcpy(str, data + arg->field.field->offset, - arg->field.field->size); - str[arg->field.field->size] = 0; - printf("%s", str); - free(str); - break; - case PRINT_FLAGS: - val = eval_num_arg(data, size, event, arg->flags.field); - print = 0; - for (flag = arg->flags.flags; flag; flag = flag->next) { - fval = eval_flag(flag->value); - if (!val && !fval) { - printf("%s", flag->str); - break; - } - if (fval && (val & fval) == fval) { - if (print && arg->flags.delim) - printf("%s", arg->flags.delim); - printf("%s", flag->str); - print = 1; - val &= ~fval; - } - } - break; - case PRINT_SYMBOL: - val = eval_num_arg(data, size, event, arg->symbol.field); - for (flag = arg->symbol.symbols; flag; flag = flag->next) { - fval = eval_flag(flag->value); - if (val == fval) { - printf("%s", flag->str); - break; - } - } - break; - - case PRINT_TYPE: - break; - case PRINT_STRING: { - int str_offset; - - if (arg->string.offset == -1) { - struct format_field *f; - - f = find_any_field(event, arg->string.string); - arg->string.offset = f->offset; - } - str_offset = *(int *)(data + arg->string.offset); - str_offset &= 0xffff; - printf("%s", ((char *)data) + str_offset); - break; - } - case PRINT_OP: - /* - * The only op for string should be ? : - */ - if (arg->op.op[0] != '?') - return; - val = eval_num_arg(data, size, event, arg->op.left); - if (val) - print_str_arg(data, size, event, arg->op.right->op.left); - else - print_str_arg(data, size, event, arg->op.right->op.right); - break; - default: - /* well... */ - break; - } -} - -static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) -{ - static struct format_field *field, *ip_field; - struct print_arg *args, *arg, **next; - unsigned long long ip, val; - char *ptr; - void *bptr; - - if (!field) { - field = find_field(event, "buf"); - if (!field) - die("can't find buffer field for binary printk"); - ip_field = find_field(event, "ip"); - if (!ip_field) - die("can't find ip field for binary printk"); - } - - ip = read_size(data + ip_field->offset, ip_field->size); - - /* - * The first arg is the IP pointer. - */ - args = malloc_or_die(sizeof(*args)); - arg = args; - arg->next = NULL; - next = &arg->next; - - arg->type = PRINT_ATOM; - arg->atom.atom = malloc_or_die(32); - sprintf(arg->atom.atom, "%lld", ip); - - /* skip the first "%pf : " */ - for (ptr = fmt + 6, bptr = data + field->offset; - bptr < data + size && *ptr; ptr++) { - int ls = 0; - - if (*ptr == '%') { - process_again: - ptr++; - switch (*ptr) { - case '%': - break; - case 'l': - ls++; - goto process_again; - case 'L': - ls = 2; - goto process_again; - case '0' ... '9': - goto process_again; - case 'p': - ls = 1; - /* fall through */ - case 'd': - case 'u': - case 'x': - case 'i': - /* the pointers are always 4 bytes aligned */ - bptr = (void *)(((unsigned long)bptr + 3) & - ~3); - switch (ls) { - case 0: - case 1: - ls = long_size; - break; - case 2: - ls = 8; - default: - break; - } - val = read_size(bptr, ls); - bptr += ls; - arg = malloc_or_die(sizeof(*arg)); - arg->next = NULL; - arg->type = PRINT_ATOM; - arg->atom.atom = malloc_or_die(32); - sprintf(arg->atom.atom, "%lld", val); - *next = arg; - next = &arg->next; - break; - case 's': - arg = malloc_or_die(sizeof(*arg)); - arg->next = NULL; - arg->type = PRINT_STRING; - arg->string.string = strdup(bptr); - bptr += strlen(bptr) + 1; - *next = arg; - next = &arg->next; - default: - break; - } - } - } - - return args; -} - -static void free_args(struct print_arg *args) -{ - struct print_arg *next; - - while (args) { - next = args->next; - - if (args->type == PRINT_ATOM) - free(args->atom.atom); - else - free(args->string.string); - free(args); - args = next; - } -} - -static char *get_bprint_format(void *data, int size __unused, struct event *event) -{ - unsigned long long addr; - static struct format_field *field; - struct printk_map *printk; - char *format; - char *p; - - if (!field) { - field = find_field(event, "fmt"); - if (!field) - die("can't find format field for binary printk"); - printf("field->offset = %d size=%d\n", field->offset, field->size); - } - - addr = read_size(data + field->offset, field->size); - - printk = find_printk(addr); - if (!printk) { - format = malloc_or_die(45); - sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", - addr); - return format; - } - - p = printk->printk; - /* Remove any quotes. */ - if (*p == '"') - p++; - format = malloc_or_die(strlen(p) + 10); - sprintf(format, "%s : %s", "%pf", p); - /* remove ending quotes and new line since we will add one too */ - p = format + strlen(format) - 1; - if (*p == '"') - *p = 0; - - p -= 2; - if (strcmp(p, "\\n") == 0) - *p = 0; - - return format; -} - -static void pretty_print(void *data, int size, struct event *event) -{ - struct print_fmt *print_fmt = &event->print_fmt; - struct print_arg *arg = print_fmt->args; - struct print_arg *args = NULL; - const char *ptr = print_fmt->format; - unsigned long long val; - struct func_map *func; - const char *saveptr; - char *bprint_fmt = NULL; - char format[32]; - int show_func; - int len; - int ls; - - if (event->flags & EVENT_FL_ISFUNC) - ptr = " %pF <-- %pF"; - - if (event->flags & EVENT_FL_ISBPRINT) { - bprint_fmt = get_bprint_format(data, size, event); - args = make_bprint_args(bprint_fmt, data, size, event); - arg = args; - ptr = bprint_fmt; - } - - for (; *ptr; ptr++) { - ls = 0; - if (*ptr == '\\') { - ptr++; - switch (*ptr) { - case 'n': - printf("\n"); - break; - case 't': - printf("\t"); - break; - case 'r': - printf("\r"); - break; - case '\\': - printf("\\"); - break; - default: - printf("%c", *ptr); - break; - } - - } else if (*ptr == '%') { - saveptr = ptr; - show_func = 0; - cont_process: - ptr++; - switch (*ptr) { - case '%': - printf("%%"); - break; - case 'l': - ls++; - goto cont_process; - case 'L': - ls = 2; - goto cont_process; - case 'z': - case 'Z': - case '0' ... '9': - goto cont_process; - case 'p': - if (long_size == 4) - ls = 1; - else - ls = 2; - - if (*(ptr+1) == 'F' || - *(ptr+1) == 'f') { - ptr++; - show_func = *ptr; - } - - /* fall through */ - case 'd': - case 'i': - case 'x': - case 'X': - case 'u': - if (!arg) - die("no argument match"); - - len = ((unsigned long)ptr + 1) - - (unsigned long)saveptr; - - /* should never happen */ - if (len > 32) - die("bad format!"); - - memcpy(format, saveptr, len); - format[len] = 0; - - val = eval_num_arg(data, size, event, arg); - arg = arg->next; - - if (show_func) { - func = find_func(val); - if (func) { - printf("%s", func->func); - if (show_func == 'F') - printf("+0x%llx", - val - func->addr); - break; - } - } - switch (ls) { - case 0: - printf(format, (int)val); - break; - case 1: - printf(format, (long)val); - break; - case 2: - printf(format, (long long)val); - break; - default: - die("bad count (%d)", ls); - } - break; - case 's': - if (!arg) - die("no matching argument"); - - print_str_arg(data, size, event, arg); - arg = arg->next; - break; - default: - printf(">%c<", *ptr); - - } - } else - printf("%c", *ptr); - } - - if (args) { - free_args(args); - free(bprint_fmt); - } -} - -static inline int log10_cpu(int nb) -{ - if (nb / 100) - return 3; - if (nb / 10) - return 2; - return 1; -} - -static void print_lat_fmt(void *data, int size __unused) -{ - unsigned int lat_flags; - unsigned int pc; - int lock_depth; - int hardirq; - int softirq; - - lat_flags = parse_common_flags(data); - pc = parse_common_pc(data); - lock_depth = parse_common_lock_depth(data); - - hardirq = lat_flags & TRACE_FLAG_HARDIRQ; - softirq = lat_flags & TRACE_FLAG_SOFTIRQ; - - printf("%c%c%c", - (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' : - (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ? - 'X' : '.', - (lat_flags & TRACE_FLAG_NEED_RESCHED) ? - 'N' : '.', - (hardirq && softirq) ? 'H' : - hardirq ? 'h' : softirq ? 's' : '.'); - - if (pc) - printf("%x", pc); - else - printf("."); - - if (lock_depth < 0) - printf(". "); - else - printf("%d ", lock_depth); -} - -#define TRACE_GRAPH_INDENT 2 - -static struct record * -get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, - struct record *next) -{ - struct format_field *field; - struct event *event; - unsigned long val; - int type; - int pid; - - type = trace_parse_common_type(next->data); - event = trace_find_event(type); - if (!event) - return NULL; - - if (!(event->flags & EVENT_FL_ISFUNCRET)) - return NULL; - - pid = trace_parse_common_pid(next->data); - field = find_field(event, "func"); - if (!field) - die("function return does not have field func"); - - val = read_size(next->data + field->offset, field->size); - - if (cur_pid != pid || cur_func != val) - return NULL; - - /* this is a leaf, now advance the iterator */ - return trace_read_data(cpu); -} - -/* Signal a overhead of time execution to the output */ -static void print_graph_overhead(unsigned long long duration) -{ - /* Non nested entry or return */ - if (duration == ~0ULL) - return (void)printf(" "); - - /* Duration exceeded 100 msecs */ - if (duration > 100000ULL) - return (void)printf("! "); - - /* Duration exceeded 10 msecs */ - if (duration > 10000ULL) - return (void)printf("+ "); - - printf(" "); -} - -static void print_graph_duration(unsigned long long duration) -{ - unsigned long usecs = duration / 1000; - unsigned long nsecs_rem = duration % 1000; - /* log10(ULONG_MAX) + '\0' */ - char msecs_str[21]; - char nsecs_str[5]; - int len; - int i; - - sprintf(msecs_str, "%lu", usecs); - - /* Print msecs */ - len = printf("%lu", usecs); - - /* Print nsecs (we don't want to exceed 7 numbers) */ - if (len < 7) { - snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); - len += printf(".%s", nsecs_str); - } - - printf(" us "); - - /* Print remaining spaces to fit the row's width */ - for (i = len; i < 7; i++) - printf(" "); - - printf("| "); -} - -static void -print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) -{ - unsigned long long rettime, calltime; - unsigned long long duration, depth; - unsigned long long val; - struct format_field *field; - struct func_map *func; - struct event *ret_event; - int type; - int i; - - type = trace_parse_common_type(ret_rec->data); - ret_event = trace_find_event(type); - - field = find_field(ret_event, "rettime"); - if (!field) - die("can't find rettime in return graph"); - rettime = read_size(ret_rec->data + field->offset, field->size); - - field = find_field(ret_event, "calltime"); - if (!field) - die("can't find rettime in return graph"); - calltime = read_size(ret_rec->data + field->offset, field->size); - - duration = rettime - calltime; - - /* Overhead */ - print_graph_overhead(duration); - - /* Duration */ - print_graph_duration(duration); - - field = find_field(event, "depth"); - if (!field) - die("can't find depth in entry graph"); - depth = read_size(data + field->offset, field->size); - - /* Function */ - for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) - printf(" "); - - field = find_field(event, "func"); - if (!field) - die("can't find func in entry graph"); - val = read_size(data + field->offset, field->size); - func = find_func(val); - - if (func) - printf("%s();", func->func); - else - printf("%llx();", val); -} - -static void print_graph_nested(struct event *event, void *data) -{ - struct format_field *field; - unsigned long long depth; - unsigned long long val; - struct func_map *func; - int i; - - /* No overhead */ - print_graph_overhead(-1); - - /* No time */ - printf(" | "); - - field = find_field(event, "depth"); - if (!field) - die("can't find depth in entry graph"); - depth = read_size(data + field->offset, field->size); - - /* Function */ - for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) - printf(" "); - - field = find_field(event, "func"); - if (!field) - die("can't find func in entry graph"); - val = read_size(data + field->offset, field->size); - func = find_func(val); - - if (func) - printf("%s() {", func->func); - else - printf("%llx() {", val); -} - -static void -pretty_print_func_ent(void *data, int size, struct event *event, - int cpu, int pid) -{ - struct format_field *field; - struct record *rec; - void *copy_data; - unsigned long val; - - if (latency_format) { - print_lat_fmt(data, size); - printf(" | "); - } - - field = find_field(event, "func"); - if (!field) - die("function entry does not have func field"); - - val = read_size(data + field->offset, field->size); - - /* - * peek_data may unmap the data pointer. Copy it first. - */ - copy_data = malloc_or_die(size); - memcpy(copy_data, data, size); - data = copy_data; - - rec = trace_peek_data(cpu); - if (rec) { - rec = get_return_for_leaf(cpu, pid, val, rec); - if (rec) { - print_graph_entry_leaf(event, data, rec); - goto out_free; - } - } - print_graph_nested(event, data); -out_free: - free(data); -} - -static void -pretty_print_func_ret(void *data, int size __unused, struct event *event) -{ - unsigned long long rettime, calltime; - unsigned long long duration, depth; - struct format_field *field; - int i; - - if (latency_format) { - print_lat_fmt(data, size); - printf(" | "); - } - - field = find_field(event, "rettime"); - if (!field) - die("can't find rettime in return graph"); - rettime = read_size(data + field->offset, field->size); - - field = find_field(event, "calltime"); - if (!field) - die("can't find calltime in return graph"); - calltime = read_size(data + field->offset, field->size); - - duration = rettime - calltime; - - /* Overhead */ - print_graph_overhead(duration); - - /* Duration */ - print_graph_duration(duration); - - field = find_field(event, "depth"); - if (!field) - die("can't find depth in entry graph"); - depth = read_size(data + field->offset, field->size); - - /* Function */ - for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) - printf(" "); - - printf("}"); -} - -static void -pretty_print_func_graph(void *data, int size, struct event *event, - int cpu, int pid) -{ - if (event->flags & EVENT_FL_ISFUNCENT) - pretty_print_func_ent(data, size, event, cpu, pid); - else if (event->flags & EVENT_FL_ISFUNCRET) - pretty_print_func_ret(data, size, event); - printf("\n"); -} - -void print_trace_event(int cpu, void *data, int size) -{ - struct event *event; - int type; - int pid; - - type = trace_parse_common_type(data); - - event = trace_find_event(type); - if (!event) { - warning("ug! no event found for type %d", type); - return; - } - - pid = trace_parse_common_pid(data); - - if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) - return pretty_print_func_graph(data, size, event, cpu, pid); - - if (latency_format) - print_lat_fmt(data, size); - - if (event->flags & EVENT_FL_FAILED) { - printf("EVENT '%s' FAILED TO PARSE\n", - event->name); - return; - } - - pretty_print(data, size, event); -} - -static void print_fields(struct print_flag_sym *field) -{ - printf("{ %s, %s }", field->value, field->str); - if (field->next) { - printf(", "); - print_fields(field->next); - } -} - -static void print_args(struct print_arg *args) -{ - int print_paren = 1; - - switch (args->type) { - case PRINT_NULL: - printf("null"); - break; - case PRINT_ATOM: - printf("%s", args->atom.atom); - break; - case PRINT_FIELD: - printf("REC->%s", args->field.name); - break; - case PRINT_FLAGS: - printf("__print_flags("); - print_args(args->flags.field); - printf(", %s, ", args->flags.delim); - print_fields(args->flags.flags); - printf(")"); - break; - case PRINT_SYMBOL: - printf("__print_symbolic("); - print_args(args->symbol.field); - printf(", "); - print_fields(args->symbol.symbols); - printf(")"); - break; - case PRINT_STRING: - printf("__get_str(%s)", args->string.string); - break; - case PRINT_TYPE: - printf("(%s)", args->typecast.type); - print_args(args->typecast.item); - break; - case PRINT_OP: - if (strcmp(args->op.op, ":") == 0) - print_paren = 0; - if (print_paren) - printf("("); - print_args(args->op.left); - printf(" %s ", args->op.op); - print_args(args->op.right); - if (print_paren) - printf(")"); - break; - default: - /* we should warn... */ - return; - } - if (args->next) { - printf("\n"); - print_args(args->next); - } -} - -int parse_ftrace_file(char *buf, unsigned long size) -{ - struct format_field *field; - struct print_arg *arg, **list; - struct event *event; - int ret; - - init_input_buf(buf, size); - - event = alloc_event(); - if (!event) - return -ENOMEM; - - event->flags |= EVENT_FL_ISFTRACE; - - event->name = event_read_name(); - if (!event->name) - die("failed to read ftrace event name"); - - if (strcmp(event->name, "function") == 0) - event->flags |= EVENT_FL_ISFUNC; - - else if (strcmp(event->name, "funcgraph_entry") == 0) - event->flags |= EVENT_FL_ISFUNCENT; - - else if (strcmp(event->name, "funcgraph_exit") == 0) - event->flags |= EVENT_FL_ISFUNCRET; - - else if (strcmp(event->name, "bprint") == 0) - event->flags |= EVENT_FL_ISBPRINT; - - event->id = event_read_id(); - if (event->id < 0) - die("failed to read ftrace event id"); - - add_event(event); - - ret = event_read_format(event); - if (ret < 0) - die("failed to read ftrace event format"); - - ret = event_read_print(event); - if (ret < 0) - die("failed to read ftrace event print fmt"); - - /* New ftrace handles args */ - if (ret > 0) - return 0; - /* - * The arguments for ftrace files are parsed by the fields. - * Set up the fields as their arguments. - */ - list = &event->print_fmt.args; - for (field = event->format.fields; field; field = field->next) { - arg = malloc_or_die(sizeof(*arg)); - memset(arg, 0, sizeof(*arg)); - *list = arg; - list = &arg->next; - arg->type = PRINT_FIELD; - arg->field.name = field->name; - arg->field.field = field; - } - return 0; -} - -int parse_event_file(char *buf, unsigned long size, char *sys) -{ - struct event *event; - int ret; - - init_input_buf(buf, size); - - event = alloc_event(); - if (!event) - return -ENOMEM; - - event->name = event_read_name(); - if (!event->name) - die("failed to read event name"); - - event->id = event_read_id(); - if (event->id < 0) - die("failed to read event id"); - - ret = event_read_format(event); - if (ret < 0) { - warning("failed to read event format for %s", event->name); - goto event_failed; - } - - ret = event_read_print(event); - if (ret < 0) { - warning("failed to read event print fmt for %s", event->name); - goto event_failed; - } - - event->system = strdup(sys); - -#define PRINT_ARGS 0 - if (PRINT_ARGS && event->print_fmt.args) - print_args(event->print_fmt.args); - - add_event(event); - return 0; - - event_failed: - event->flags |= EVENT_FL_FAILED; - /* still add it even if it failed */ - add_event(event); - return -1; -} - -void parse_set_info(int nr_cpus, int long_sz) -{ - cpus = nr_cpus; - long_size = long_sz; -} - int common_pc(struct scripting_context *context) { return parse_common_pc(context->event_data); diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h index 58ae14c5baac..e78ef1e10ee1 100644 --- a/tools/perf/util/trace-event.h +++ b/tools/perf/util/trace-event.h @@ -1,271 +1,15 @@ -#ifndef __PERF_TRACE_EVENTS_H -#define __PERF_TRACE_EVENTS_H +#ifndef _PERF_UTIL_TRACE_EVENT_H +#define _PERF_UTIL_TRACE_EVENT_H -#include <stdbool.h> #include "parse-events.h" +#include "trace-parse-events.h" +#include "session.h" struct machine; struct perf_sample; union perf_event; struct thread; -#define __unused __attribute__((unused)) - - -#ifndef PAGE_MASK -#define PAGE_MASK (page_size - 1) -#endif - -enum { - RINGBUF_TYPE_PADDING = 29, - RINGBUF_TYPE_TIME_EXTEND = 30, - RINGBUF_TYPE_TIME_STAMP = 31, -}; - -#ifndef TS_SHIFT -#define TS_SHIFT 27 -#endif - -#define NSECS_PER_SEC 1000000000ULL -#define NSECS_PER_USEC 1000ULL - -enum format_flags { - FIELD_IS_ARRAY = 1, - FIELD_IS_POINTER = 2, - FIELD_IS_SIGNED = 4, - FIELD_IS_STRING = 8, - FIELD_IS_DYNAMIC = 16, - FIELD_IS_FLAG = 32, - FIELD_IS_SYMBOLIC = 64, -}; - -struct format_field { - struct format_field *next; - char *type; - char *name; - int offset; - int size; - unsigned long flags; -}; - -struct format { - int nr_common; - int nr_fields; - struct format_field *common_fields; - struct format_field *fields; -}; - -struct print_arg_atom { - char *atom; -}; - -struct print_arg_string { - char *string; - int offset; -}; - -struct print_arg_field { - char *name; - struct format_field *field; -}; - -struct print_flag_sym { - struct print_flag_sym *next; - char *value; - char *str; -}; - -struct print_arg_typecast { - char *type; - struct print_arg *item; -}; - -struct print_arg_flags { - struct print_arg *field; - char *delim; - struct print_flag_sym *flags; -}; - -struct print_arg_symbol { - struct print_arg *field; - struct print_flag_sym *symbols; -}; - -struct print_arg; - -struct print_arg_op { - char *op; - int prio; - struct print_arg *left; - struct print_arg *right; -}; - -struct print_arg_func { - char *name; - struct print_arg *args; -}; - -enum print_arg_type { - PRINT_NULL, - PRINT_ATOM, - PRINT_FIELD, - PRINT_FLAGS, - PRINT_SYMBOL, - PRINT_TYPE, - PRINT_STRING, - PRINT_OP, -}; - -struct print_arg { - struct print_arg *next; - enum print_arg_type type; - union { - struct print_arg_atom atom; - struct print_arg_field field; - struct print_arg_typecast typecast; - struct print_arg_flags flags; - struct print_arg_symbol symbol; - struct print_arg_func func; - struct print_arg_string string; - struct print_arg_op op; - }; -}; - -struct print_fmt { - char *format; - struct print_arg *args; -}; - -struct event { - struct event *next; - char *name; - int id; - int flags; - struct format format; - struct print_fmt print_fmt; - char *system; -}; - -enum { - EVENT_FL_ISFTRACE = 0x01, - EVENT_FL_ISPRINT = 0x02, - EVENT_FL_ISBPRINT = 0x04, - EVENT_FL_ISFUNC = 0x08, - EVENT_FL_ISFUNCENT = 0x10, - EVENT_FL_ISFUNCRET = 0x20, - - EVENT_FL_FAILED = 0x80000000 -}; - -struct record { - unsigned long long ts; - int size; - void *data; -}; - -struct record *trace_peek_data(int cpu); -struct record *trace_read_data(int cpu); - -void parse_set_info(int nr_cpus, int long_sz); - -ssize_t trace_report(int fd, bool repipe); - -void *malloc_or_die(unsigned int size); - -void parse_cmdlines(char *file, int size); -void parse_proc_kallsyms(char *file, unsigned int size); -void parse_ftrace_printk(char *file, unsigned int size); - -void print_funcs(void); -void print_printk(void); - -int parse_ftrace_file(char *buf, unsigned long size); -int parse_event_file(char *buf, unsigned long size, char *sys); -void print_trace_event(int cpu, void *data, int size); - -extern int file_bigendian; -extern int host_bigendian; - -int bigendian(void); - -static inline unsigned short __data2host2(unsigned short data) -{ - unsigned short swap; - - if (host_bigendian == file_bigendian) - return data; - - swap = ((data & 0xffULL) << 8) | - ((data & (0xffULL << 8)) >> 8); - - return swap; -} - -static inline unsigned int __data2host4(unsigned int data) -{ - unsigned int swap; - - if (host_bigendian == file_bigendian) - return data; - - swap = ((data & 0xffULL) << 24) | - ((data & (0xffULL << 8)) << 8) | - ((data & (0xffULL << 16)) >> 8) | - ((data & (0xffULL << 24)) >> 24); - - return swap; -} - -static inline unsigned long long __data2host8(unsigned long long data) -{ - unsigned long long swap; - - if (host_bigendian == file_bigendian) - return data; - - swap = ((data & 0xffULL) << 56) | - ((data & (0xffULL << 8)) << 40) | - ((data & (0xffULL << 16)) << 24) | - ((data & (0xffULL << 24)) << 8) | - ((data & (0xffULL << 32)) >> 8) | - ((data & (0xffULL << 40)) >> 24) | - ((data & (0xffULL << 48)) >> 40) | - ((data & (0xffULL << 56)) >> 56); - - return swap; -} - -#define data2host2(ptr) __data2host2(*(unsigned short *)ptr) -#define data2host4(ptr) __data2host4(*(unsigned int *)ptr) -#define data2host8(ptr) ({ \ - unsigned long long __val; \ - \ - memcpy(&__val, (ptr), sizeof(unsigned long long)); \ - __data2host8(__val); \ -}) - -extern int header_page_ts_offset; -extern int header_page_ts_size; -extern int header_page_size_offset; -extern int header_page_size_size; -extern int header_page_data_offset; -extern int header_page_data_size; - -extern bool latency_format; - -int trace_parse_common_type(void *data); -int trace_parse_common_pid(void *data); -int parse_common_pc(void *data); -int parse_common_flags(void *data); -int parse_common_lock_depth(void *data); -struct event *trace_find_event(int id); -struct event *trace_find_next_event(struct event *event); -unsigned long long read_size(void *ptr, int size); -unsigned long long -raw_field_value(struct event *event, const char *name, void *data); -void *raw_field_ptr(struct event *event, const char *name, void *data); -unsigned long long eval_flag(const char *flag); - int read_tracing_data(int fd, struct list_head *pattrs); struct tracing_data { @@ -280,15 +24,6 @@ struct tracing_data *tracing_data_get(struct list_head *pattrs, void tracing_data_put(struct tracing_data *tdata); -/* taken from kernel/trace/trace.h */ -enum trace_flag_type { - TRACE_FLAG_IRQS_OFF = 0x01, - TRACE_FLAG_IRQS_NOSUPPORT = 0x02, - TRACE_FLAG_NEED_RESCHED = 0x04, - TRACE_FLAG_HARDIRQ = 0x08, - TRACE_FLAG_SOFTIRQ = 0x10, -}; - struct scripting_ops { const char *name; int (*start_script) (const char *script, int argc, const char **argv); @@ -314,4 +49,4 @@ int common_pc(struct scripting_context *context); int common_flags(struct scripting_context *context); int common_lock_depth(struct scripting_context *context); -#endif /* __PERF_TRACE_EVENTS_H */ +#endif /* _PERF_UTIL_TRACE_EVENT_H */ diff --git a/tools/perf/util/trace-parse-events.c b/tools/perf/util/trace-parse-events.c new file mode 100644 index 000000000000..8a3fbe643a1c --- /dev/null +++ b/tools/perf/util/trace-parse-events.c @@ -0,0 +1,3125 @@ +/* + * Copyright (C) 2009, Steven Rostedt <srostedt@redhat.com> + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License (not later!) + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * The parts for function graph printing was taken and modified from the + * Linux Kernel that were written by Frederic Weisbecker. + */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <ctype.h> +#include <errno.h> + +#include "../perf.h" +#include "util.h" +#include "trace-parse-events.h" + +int header_page_ts_offset; +int header_page_ts_size; +int header_page_size_offset; +int header_page_size_size; +int header_page_overwrite_offset; +int header_page_overwrite_size; +int header_page_data_offset; +int header_page_data_size; + +bool latency_format; + +static char *input_buf; +static unsigned long long input_buf_ptr; +static unsigned long long input_buf_siz; + +static int cpus; +static int long_size; +static int is_flag_field; +static int is_symbolic_field; + +static struct format_field * +find_any_field(struct event *event, const char *name); + +static void init_input_buf(char *buf, unsigned long long size) +{ + input_buf = buf; + input_buf_siz = size; + input_buf_ptr = 0; +} + +struct cmdline { + char *comm; + int pid; +}; + +static struct cmdline *cmdlines; +static int cmdline_count; + +static int cmdline_cmp(const void *a, const void *b) +{ + const struct cmdline *ca = a; + const struct cmdline *cb = b; + + if (ca->pid < cb->pid) + return -1; + if (ca->pid > cb->pid) + return 1; + + return 0; +} + +void parse_cmdlines(char *file, int size __unused) +{ + struct cmdline_list { + struct cmdline_list *next; + char *comm; + int pid; + } *list = NULL, *item; + char *line; + char *next = NULL; + int i; + + line = strtok_r(file, "\n", &next); + while (line) { + item = malloc_or_die(sizeof(*item)); + sscanf(line, "%d %as", &item->pid, + (float *)(void *)&item->comm); /* workaround gcc warning */ + item->next = list; + list = item; + line = strtok_r(NULL, "\n", &next); + cmdline_count++; + } + + cmdlines = malloc_or_die(sizeof(*cmdlines) * cmdline_count); + + i = 0; + while (list) { + cmdlines[i].pid = list->pid; + cmdlines[i].comm = list->comm; + i++; + item = list; + list = list->next; + free(item); + } + + qsort(cmdlines, cmdline_count, sizeof(*cmdlines), cmdline_cmp); +} + +static struct func_map { + unsigned long long addr; + char *func; + char *mod; +} *func_list; +static unsigned int func_count; + +static int func_cmp(const void *a, const void *b) +{ + const struct func_map *fa = a; + const struct func_map *fb = b; + + if (fa->addr < fb->addr) + return -1; + if (fa->addr > fb->addr) + return 1; + + return 0; +} + +void parse_proc_kallsyms(char *file, unsigned int size __unused) +{ + struct func_list { + struct func_list *next; + unsigned long long addr; + char *func; + char *mod; + } *list = NULL, *item; + char *line; + char *next = NULL; + char *addr_str; + char ch; + int i; + + line = strtok_r(file, "\n", &next); + while (line) { + item = malloc_or_die(sizeof(*item)); + item->mod = NULL; + sscanf(line, "%as %c %as\t[%as", + (float *)(void *)&addr_str, /* workaround gcc warning */ + &ch, + (float *)(void *)&item->func, + (float *)(void *)&item->mod); + item->addr = strtoull(addr_str, NULL, 16); + free(addr_str); + + /* truncate the extra ']' */ + if (item->mod) + item->mod[strlen(item->mod) - 1] = 0; + + + item->next = list; + list = item; + line = strtok_r(NULL, "\n", &next); + func_count++; + } + + func_list = malloc_or_die(sizeof(*func_list) * (func_count + 1)); + + i = 0; + while (list) { + func_list[i].func = list->func; + func_list[i].addr = list->addr; + func_list[i].mod = list->mod; + i++; + item = list; + list = list->next; + free(item); + } + + qsort(func_list, func_count, sizeof(*func_list), func_cmp); + + /* + * Add a special record at the end. + */ + func_list[func_count].func = NULL; + func_list[func_count].addr = 0; + func_list[func_count].mod = NULL; +} + +/* + * We are searching for a record in between, not an exact + * match. + */ +static int func_bcmp(const void *a, const void *b) +{ + const struct func_map *fa = a; + const struct func_map *fb = b; + + if ((fa->addr == fb->addr) || + + (fa->addr > fb->addr && + fa->addr < (fb+1)->addr)) + return 0; + + if (fa->addr < fb->addr) + return -1; + + return 1; +} + +static struct func_map *find_func(unsigned long long addr) +{ + struct func_map *func; + struct func_map key; + + key.addr = addr; + + func = bsearch(&key, func_list, func_count, sizeof(*func_list), + func_bcmp); + + return func; +} + +void print_funcs(void) +{ + int i; + + for (i = 0; i < (int)func_count; i++) { + printf("%016llx %s", + func_list[i].addr, + func_list[i].func); + if (func_list[i].mod) + printf(" [%s]\n", func_list[i].mod); + else + printf("\n"); + } +} + +static struct printk_map { + unsigned long long addr; + char *printk; +} *printk_list; +static unsigned int printk_count; + +static int printk_cmp(const void *a, const void *b) +{ + const struct func_map *fa = a; + const struct func_map *fb = b; + + if (fa->addr < fb->addr) + return -1; + if (fa->addr > fb->addr) + return 1; + + return 0; +} + +static struct printk_map *find_printk(unsigned long long addr) +{ + struct printk_map *printk; + struct printk_map key; + + key.addr = addr; + + printk = bsearch(&key, printk_list, printk_count, sizeof(*printk_list), + printk_cmp); + + return printk; +} + +void parse_ftrace_printk(char *file, unsigned int size __unused) +{ + struct printk_list { + struct printk_list *next; + unsigned long long addr; + char *printk; + } *list = NULL, *item; + char *line; + char *next = NULL; + char *addr_str; + int i; + + line = strtok_r(file, "\n", &next); + while (line) { + addr_str = strsep(&line, ":"); + if (!line) { + warning("error parsing print strings"); + break; + } + item = malloc_or_die(sizeof(*item)); + item->addr = strtoull(addr_str, NULL, 16); + /* fmt still has a space, skip it */ + item->printk = strdup(line+1); + item->next = list; + list = item; + line = strtok_r(NULL, "\n", &next); + printk_count++; + } + + printk_list = malloc_or_die(sizeof(*printk_list) * printk_count + 1); + + i = 0; + while (list) { + printk_list[i].printk = list->printk; + printk_list[i].addr = list->addr; + i++; + item = list; + list = list->next; + free(item); + } + + qsort(printk_list, printk_count, sizeof(*printk_list), printk_cmp); +} + +void print_printk(void) +{ + int i; + + for (i = 0; i < (int)printk_count; i++) { + printf("%016llx %s\n", + printk_list[i].addr, + printk_list[i].printk); + } +} + +static struct event *alloc_event(void) +{ + struct event *event; + + event = malloc_or_die(sizeof(*event)); + memset(event, 0, sizeof(*event)); + + return event; +} + +enum event_type { + EVENT_ERROR, + EVENT_NONE, + EVENT_SPACE, + EVENT_NEWLINE, + EVENT_OP, + EVENT_DELIM, + EVENT_ITEM, + EVENT_DQUOTE, + EVENT_SQUOTE, +}; + +static struct event *event_list; + +static void add_event(struct event *event) +{ + event->next = event_list; + event_list = event; +} + +static int event_item_type(enum event_type type) +{ + switch (type) { + case EVENT_ITEM ... EVENT_SQUOTE: + return 1; + case EVENT_ERROR ... EVENT_DELIM: + default: + return 0; + } +} + +static void free_arg(struct print_arg *arg) +{ + if (!arg) + return; + + switch (arg->type) { + case PRINT_ATOM: + if (arg->atom.atom) + free(arg->atom.atom); + break; + case PRINT_NULL: + case PRINT_FIELD ... PRINT_OP: + default: + /* todo */ + break; + } + + free(arg); +} + +static enum event_type get_type(int ch) +{ + if (ch == '\n') + return EVENT_NEWLINE; + if (isspace(ch)) + return EVENT_SPACE; + if (isalnum(ch) || ch == '_') + return EVENT_ITEM; + if (ch == '\'') + return EVENT_SQUOTE; + if (ch == '"') + return EVENT_DQUOTE; + if (!isprint(ch)) + return EVENT_NONE; + if (ch == '(' || ch == ')' || ch == ',') + return EVENT_DELIM; + + return EVENT_OP; +} + +static int __read_char(void) +{ + if (input_buf_ptr >= input_buf_siz) + return -1; + + return input_buf[input_buf_ptr++]; +} + +static int __peek_char(void) +{ + if (input_buf_ptr >= input_buf_siz) + return -1; + + return input_buf[input_buf_ptr]; +} + +static enum event_type __read_token(char **tok) +{ + char buf[BUFSIZ]; + int ch, last_ch, quote_ch, next_ch; + int i = 0; + int tok_size = 0; + enum event_type type; + + *tok = NULL; + + + ch = __read_char(); + if (ch < 0) + return EVENT_NONE; + + type = get_type(ch); + if (type == EVENT_NONE) + return type; + + buf[i++] = ch; + + switch (type) { + case EVENT_NEWLINE: + case EVENT_DELIM: + *tok = malloc_or_die(2); + (*tok)[0] = ch; + (*tok)[1] = 0; + return type; + + case EVENT_OP: + switch (ch) { + case '-': + next_ch = __peek_char(); + if (next_ch == '>') { + buf[i++] = __read_char(); + break; + } + /* fall through */ + case '+': + case '|': + case '&': + case '>': + case '<': + last_ch = ch; + ch = __peek_char(); + if (ch != last_ch) + goto test_equal; + buf[i++] = __read_char(); + switch (last_ch) { + case '>': + case '<': + goto test_equal; + default: + break; + } + break; + case '!': + case '=': + goto test_equal; + default: /* what should we do instead? */ + break; + } + buf[i] = 0; + *tok = strdup(buf); + return type; + + test_equal: + ch = __peek_char(); + if (ch == '=') + buf[i++] = __read_char(); + break; + + case EVENT_DQUOTE: + case EVENT_SQUOTE: + /* don't keep quotes */ + i--; + quote_ch = ch; + last_ch = 0; + do { + if (i == (BUFSIZ - 1)) { + buf[i] = 0; + if (*tok) { + *tok = realloc(*tok, tok_size + BUFSIZ); + if (!*tok) + return EVENT_NONE; + strcat(*tok, buf); + } else + *tok = strdup(buf); + + if (!*tok) + return EVENT_NONE; + tok_size += BUFSIZ; + i = 0; + } + last_ch = ch; + ch = __read_char(); + buf[i++] = ch; + /* the '\' '\' will cancel itself */ + if (ch == '\\' && last_ch == '\\') + last_ch = 0; + } while (ch != quote_ch || last_ch == '\\'); + /* remove the last quote */ + i--; + goto out; + + case EVENT_ERROR ... EVENT_SPACE: + case EVENT_ITEM: + default: + break; + } + + while (get_type(__peek_char()) == type) { + if (i == (BUFSIZ - 1)) { + buf[i] = 0; + if (*tok) { + *tok = realloc(*tok, tok_size + BUFSIZ); + if (!*tok) + return EVENT_NONE; + strcat(*tok, buf); + } else + *tok = strdup(buf); + + if (!*tok) + return EVENT_NONE; + tok_size += BUFSIZ; + i = 0; + } + ch = __read_char(); + buf[i++] = ch; + } + + out: + buf[i] = 0; + if (*tok) { + *tok = realloc(*tok, tok_size + i); + if (!*tok) + return EVENT_NONE; + strcat(*tok, buf); + } else + *tok = strdup(buf); + if (!*tok) + return EVENT_NONE; + + return type; +} + +static void free_token(char *tok) +{ + if (tok) + free(tok); +} + +static enum event_type read_token(char **tok) +{ + enum event_type type; + + for (;;) { + type = __read_token(tok); + if (type != EVENT_SPACE) + return type; + + free_token(*tok); + } + + /* not reached */ + return EVENT_NONE; +} + +/* no newline */ +static enum event_type read_token_item(char **tok) +{ + enum event_type type; + + for (;;) { + type = __read_token(tok); + if (type != EVENT_SPACE && type != EVENT_NEWLINE) + return type; + + free_token(*tok); + } + + /* not reached */ + return EVENT_NONE; +} + +static int test_type(enum event_type type, enum event_type expect) +{ + if (type != expect) { + warning("Error: expected type %d but read %d", + expect, type); + return -1; + } + return 0; +} + +static int __test_type_token(enum event_type type, char *token, + enum event_type expect, const char *expect_tok, + bool warn) +{ + if (type != expect) { + if (warn) + warning("Error: expected type %d but read %d", + expect, type); + return -1; + } + + if (strcmp(token, expect_tok) != 0) { + if (warn) + warning("Error: expected '%s' but read '%s'", + expect_tok, token); + return -1; + } + return 0; +} + +static int test_type_token(enum event_type type, char *token, + enum event_type expect, const char *expect_tok) +{ + return __test_type_token(type, token, expect, expect_tok, true); +} + +static int __read_expect_type(enum event_type expect, char **tok, int newline_ok) +{ + enum event_type type; + + if (newline_ok) + type = read_token(tok); + else + type = read_token_item(tok); + return test_type(type, expect); +} + +static int read_expect_type(enum event_type expect, char **tok) +{ + return __read_expect_type(expect, tok, 1); +} + +static int __read_expected(enum event_type expect, const char *str, + int newline_ok, bool warn) +{ + enum event_type type; + char *token; + int ret; + + if (newline_ok) + type = read_token(&token); + else + type = read_token_item(&token); + + ret = __test_type_token(type, token, expect, str, warn); + + free_token(token); + + return ret; +} + +static int read_expected(enum event_type expect, const char *str) +{ + return __read_expected(expect, str, 1, true); +} + +static int read_expected_item(enum event_type expect, const char *str) +{ + return __read_expected(expect, str, 0, true); +} + +static char *event_read_name(void) +{ + char *token; + + if (read_expected(EVENT_ITEM, "name") < 0) + return NULL; + + if (read_expected(EVENT_OP, ":") < 0) + return NULL; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto fail; + + return token; + + fail: + free_token(token); + return NULL; +} + +static int event_read_id(void) +{ + char *token; + int id; + + if (read_expected_item(EVENT_ITEM, "ID") < 0) + return -1; + + if (read_expected(EVENT_OP, ":") < 0) + return -1; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto fail; + + id = strtoul(token, NULL, 0); + free_token(token); + return id; + + fail: + free_token(token); + return -1; +} + +static int field_is_string(struct format_field *field) +{ + if ((field->flags & FIELD_IS_ARRAY) && + (!strstr(field->type, "char") || !strstr(field->type, "u8") || + !strstr(field->type, "s8"))) + return 1; + + return 0; +} + +static int field_is_dynamic(struct format_field *field) +{ + if (!strncmp(field->type, "__data_loc", 10)) + return 1; + + return 0; +} + +static int event_read_fields(struct event *event, struct format_field **fields) +{ + struct format_field *field = NULL; + enum event_type type; + char *token; + char *last_token; + int count = 0; + + do { + type = read_token(&token); + if (type == EVENT_NEWLINE) { + free_token(token); + return count; + } + + count++; + + if (test_type_token(type, token, EVENT_ITEM, "field")) + goto fail; + free_token(token); + + type = read_token(&token); + /* + * The ftrace fields may still use the "special" name. + * Just ignore it. + */ + if (event->flags & EVENT_FL_ISFTRACE && + type == EVENT_ITEM && strcmp(token, "special") == 0) { + free_token(token); + type = read_token(&token); + } + + if (test_type_token(type, token, EVENT_OP, ":") < 0) + return -1; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto fail; + + last_token = token; + + field = malloc_or_die(sizeof(*field)); + memset(field, 0, sizeof(*field)); + + /* read the rest of the type */ + for (;;) { + type = read_token(&token); + if (type == EVENT_ITEM || + (type == EVENT_OP && strcmp(token, "*") == 0) || + /* + * Some of the ftrace fields are broken and have + * an illegal "." in them. + */ + (event->flags & EVENT_FL_ISFTRACE && + type == EVENT_OP && strcmp(token, ".") == 0)) { + + if (strcmp(token, "*") == 0) + field->flags |= FIELD_IS_POINTER; + + if (field->type) { + field->type = realloc(field->type, + strlen(field->type) + + strlen(last_token) + 2); + strcat(field->type, " "); + strcat(field->type, last_token); + } else + field->type = last_token; + last_token = token; + continue; + } + + break; + } + + if (!field->type) { + die("no type found"); + goto fail; + } + field->name = last_token; + + if (test_type(type, EVENT_OP)) + goto fail; + + if (strcmp(token, "[") == 0) { + enum event_type last_type = type; + char *brackets = token; + int len; + + field->flags |= FIELD_IS_ARRAY; + + type = read_token(&token); + while (strcmp(token, "]") != 0) { + if (last_type == EVENT_ITEM && + type == EVENT_ITEM) + len = 2; + else + len = 1; + last_type = type; + + brackets = realloc(brackets, + strlen(brackets) + + strlen(token) + len); + if (len == 2) + strcat(brackets, " "); + strcat(brackets, token); + free_token(token); + type = read_token(&token); + if (type == EVENT_NONE) { + die("failed to find token"); + goto fail; + } + } + + free_token(token); + + brackets = realloc(brackets, strlen(brackets) + 2); + strcat(brackets, "]"); + + /* add brackets to type */ + + type = read_token(&token); + /* + * If the next token is not an OP, then it is of + * the format: type [] item; + */ + if (type == EVENT_ITEM) { + field->type = realloc(field->type, + strlen(field->type) + + strlen(field->name) + + strlen(brackets) + 2); + strcat(field->type, " "); + strcat(field->type, field->name); + free_token(field->name); + strcat(field->type, brackets); + field->name = token; + type = read_token(&token); + } else { + field->type = realloc(field->type, + strlen(field->type) + + strlen(brackets) + 1); + strcat(field->type, brackets); + } + free(brackets); + } + + if (field_is_string(field)) { + field->flags |= FIELD_IS_STRING; + if (field_is_dynamic(field)) + field->flags |= FIELD_IS_DYNAMIC; + } + + if (test_type_token(type, token, EVENT_OP, ";")) + goto fail; + free_token(token); + + if (read_expected(EVENT_ITEM, "offset") < 0) + goto fail_expect; + + if (read_expected(EVENT_OP, ":") < 0) + goto fail_expect; + + if (read_expect_type(EVENT_ITEM, &token)) + goto fail; + field->offset = strtoul(token, NULL, 0); + free_token(token); + + if (read_expected(EVENT_OP, ";") < 0) + goto fail_expect; + + if (read_expected(EVENT_ITEM, "size") < 0) + goto fail_expect; + + if (read_expected(EVENT_OP, ":") < 0) + goto fail_expect; + + if (read_expect_type(EVENT_ITEM, &token)) + goto fail; + field->size = strtoul(token, NULL, 0); + free_token(token); + + if (read_expected(EVENT_OP, ";") < 0) + goto fail_expect; + + type = read_token(&token); + if (type != EVENT_NEWLINE) { + /* newer versions of the kernel have a "signed" type */ + if (test_type_token(type, token, EVENT_ITEM, "signed")) + goto fail; + + free_token(token); + + if (read_expected(EVENT_OP, ":") < 0) + goto fail_expect; + + if (read_expect_type(EVENT_ITEM, &token)) + goto fail; + + if (strtoul(token, NULL, 0)) + field->flags |= FIELD_IS_SIGNED; + + free_token(token); + if (read_expected(EVENT_OP, ";") < 0) + goto fail_expect; + + if (read_expect_type(EVENT_NEWLINE, &token)) + goto fail; + } + + free_token(token); + + *fields = field; + fields = &field->next; + + } while (1); + + return 0; + +fail: + free_token(token); +fail_expect: + if (field) + free(field); + return -1; +} + +static int event_read_format(struct event *event) +{ + char *token; + int ret; + + if (read_expected_item(EVENT_ITEM, "format") < 0) + return -1; + + if (read_expected(EVENT_OP, ":") < 0) + return -1; + + if (read_expect_type(EVENT_NEWLINE, &token)) + goto fail; + free_token(token); + + ret = event_read_fields(event, &event->format.common_fields); + if (ret < 0) + return ret; + event->format.nr_common = ret; + + ret = event_read_fields(event, &event->format.fields); + if (ret < 0) + return ret; + event->format.nr_fields = ret; + + return 0; + + fail: + free_token(token); + return -1; +} + +enum event_type +process_arg_token(struct event *event, struct print_arg *arg, + char **tok, enum event_type type); + +static enum event_type +process_arg(struct event *event, struct print_arg *arg, char **tok) +{ + enum event_type type; + char *token; + + type = read_token(&token); + *tok = token; + + return process_arg_token(event, arg, tok, type); +} + +static enum event_type +process_cond(struct event *event, struct print_arg *top, char **tok) +{ + struct print_arg *arg, *left, *right; + enum event_type type; + char *token = NULL; + + arg = malloc_or_die(sizeof(*arg)); + memset(arg, 0, sizeof(*arg)); + + left = malloc_or_die(sizeof(*left)); + + right = malloc_or_die(sizeof(*right)); + + arg->type = PRINT_OP; + arg->op.left = left; + arg->op.right = right; + + *tok = NULL; + type = process_arg(event, left, &token); + if (test_type_token(type, token, EVENT_OP, ":")) + goto out_free; + + arg->op.op = token; + + type = process_arg(event, right, &token); + + top->op.right = arg; + + *tok = token; + return type; + +out_free: + free_token(*tok); + free(right); + free(left); + free_arg(arg); + return EVENT_ERROR; +} + +static enum event_type +process_array(struct event *event, struct print_arg *top, char **tok) +{ + struct print_arg *arg; + enum event_type type; + char *token = NULL; + + arg = malloc_or_die(sizeof(*arg)); + memset(arg, 0, sizeof(*arg)); + + *tok = NULL; + type = process_arg(event, arg, &token); + if (test_type_token(type, token, EVENT_OP, "]")) + goto out_free; + + top->op.right = arg; + + free_token(token); + type = read_token_item(&token); + *tok = token; + + return type; + +out_free: + free_token(*tok); + free_arg(arg); + return EVENT_ERROR; +} + +static int get_op_prio(char *op) +{ + if (!op[1]) { + switch (op[0]) { + case '*': + case '/': + case '%': + return 6; + case '+': + case '-': + return 7; + /* '>>' and '<<' are 8 */ + case '<': + case '>': + return 9; + /* '==' and '!=' are 10 */ + case '&': + return 11; + case '^': + return 12; + case '|': + return 13; + case '?': + return 16; + default: + die("unknown op '%c'", op[0]); + return -1; + } + } else { + if (strcmp(op, "++") == 0 || + strcmp(op, "--") == 0) { + return 3; + } else if (strcmp(op, ">>") == 0 || + strcmp(op, "<<") == 0) { + return 8; + } else if (strcmp(op, ">=") == 0 || + strcmp(op, "<=") == 0) { + return 9; + } else if (strcmp(op, "==") == 0 || + strcmp(op, "!=") == 0) { + return 10; + } else if (strcmp(op, "&&") == 0) { + return 14; + } else if (strcmp(op, "||") == 0) { + return 15; + } else { + die("unknown op '%s'", op); + return -1; + } + } +} + +static void set_op_prio(struct print_arg *arg) +{ + + /* single ops are the greatest */ + if (!arg->op.left || arg->op.left->type == PRINT_NULL) { + arg->op.prio = 0; + return; + } + + arg->op.prio = get_op_prio(arg->op.op); +} + +static enum event_type +process_op(struct event *event, struct print_arg *arg, char **tok) +{ + struct print_arg *left, *right = NULL; + enum event_type type; + char *token; + + /* the op is passed in via tok */ + token = *tok; + + if (arg->type == PRINT_OP && !arg->op.left) { + /* handle single op */ + if (token[1]) { + die("bad op token %s", token); + return EVENT_ERROR; + } + switch (token[0]) { + case '!': + case '+': + case '-': + break; + default: + die("bad op token %s", token); + return EVENT_ERROR; + } + + /* make an empty left */ + left = malloc_or_die(sizeof(*left)); + left->type = PRINT_NULL; + arg->op.left = left; + + right = malloc_or_die(sizeof(*right)); + arg->op.right = right; + + type = process_arg(event, right, tok); + + } else if (strcmp(token, "?") == 0) { + + left = malloc_or_die(sizeof(*left)); + /* copy the top arg to the left */ + *left = *arg; + + arg->type = PRINT_OP; + arg->op.op = token; + arg->op.left = left; + arg->op.prio = 0; + + type = process_cond(event, arg, tok); + + } else if (strcmp(token, ">>") == 0 || + strcmp(token, "<<") == 0 || + strcmp(token, "&") == 0 || + strcmp(token, "|") == 0 || + strcmp(token, "&&") == 0 || + strcmp(token, "||") == 0 || + strcmp(token, "-") == 0 || + strcmp(token, "+") == 0 || + strcmp(token, "*") == 0 || + strcmp(token, "^") == 0 || + strcmp(token, "/") == 0 || + strcmp(token, "<") == 0 || + strcmp(token, ">") == 0 || + strcmp(token, "==") == 0 || + strcmp(token, "!=") == 0) { + + left = malloc_or_die(sizeof(*left)); + + /* copy the top arg to the left */ + *left = *arg; + + arg->type = PRINT_OP; + arg->op.op = token; + arg->op.left = left; + + set_op_prio(arg); + + right = malloc_or_die(sizeof(*right)); + + type = read_token_item(&token); + *tok = token; + + /* could just be a type pointer */ + if ((strcmp(arg->op.op, "*") == 0) && + type == EVENT_DELIM && (strcmp(token, ")") == 0)) { + if (left->type != PRINT_ATOM) + die("bad pointer type"); + left->atom.atom = realloc(left->atom.atom, + sizeof(left->atom.atom) + 3); + strcat(left->atom.atom, " *"); + *arg = *left; + free(arg); + + return type; + } + + type = process_arg_token(event, right, tok, type); + + arg->op.right = right; + + } else if (strcmp(token, "[") == 0) { + + left = malloc_or_die(sizeof(*left)); + *left = *arg; + + arg->type = PRINT_OP; + arg->op.op = token; + arg->op.left = left; + + arg->op.prio = 0; + type = process_array(event, arg, tok); + + } else { + warning("unknown op '%s'", token); + event->flags |= EVENT_FL_FAILED; + /* the arg is now the left side */ + return EVENT_NONE; + } + + if (type == EVENT_OP) { + int prio; + + /* higher prios need to be closer to the root */ + prio = get_op_prio(*tok); + + if (prio > arg->op.prio) + return process_op(event, arg, tok); + + return process_op(event, right, tok); + } + + return type; +} + +static enum event_type +process_entry(struct event *event __unused, struct print_arg *arg, + char **tok) +{ + enum event_type type; + char *field; + char *token; + + if (read_expected(EVENT_OP, "->") < 0) + return EVENT_ERROR; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto fail; + field = token; + + arg->type = PRINT_FIELD; + arg->field.name = field; + + if (is_flag_field) { + arg->field.field = find_any_field(event, arg->field.name); + arg->field.field->flags |= FIELD_IS_FLAG; + is_flag_field = 0; + } else if (is_symbolic_field) { + arg->field.field = find_any_field(event, arg->field.name); + arg->field.field->flags |= FIELD_IS_SYMBOLIC; + is_symbolic_field = 0; + } + + type = read_token(&token); + *tok = token; + + return type; + +fail: + free_token(token); + return EVENT_ERROR; +} + +static char *arg_eval (struct print_arg *arg); + +static long long arg_num_eval(struct print_arg *arg) +{ + long long left, right; + long long val = 0; + + switch (arg->type) { + case PRINT_ATOM: + val = strtoll(arg->atom.atom, NULL, 0); + break; + case PRINT_TYPE: + val = arg_num_eval(arg->typecast.item); + break; + case PRINT_OP: + switch (arg->op.op[0]) { + case '|': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + if (arg->op.op[1]) + val = left || right; + else + val = left | right; + break; + case '&': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + if (arg->op.op[1]) + val = left && right; + else + val = left & right; + break; + case '<': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + switch (arg->op.op[1]) { + case 0: + val = left < right; + break; + case '<': + val = left << right; + break; + case '=': + val = left <= right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + case '>': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + switch (arg->op.op[1]) { + case 0: + val = left > right; + break; + case '>': + val = left >> right; + break; + case '=': + val = left >= right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + case '=': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + + if (arg->op.op[1] != '=') + die("unknown op '%s'", arg->op.op); + + val = left == right; + break; + case '!': + left = arg_num_eval(arg->op.left); + right = arg_num_eval(arg->op.right); + + switch (arg->op.op[1]) { + case '=': + val = left != right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + + case PRINT_NULL: + case PRINT_FIELD ... PRINT_SYMBOL: + case PRINT_STRING: + default: + die("invalid eval type %d", arg->type); + + } + return val; +} + +static char *arg_eval (struct print_arg *arg) +{ + long long val; + static char buf[20]; + + switch (arg->type) { + case PRINT_ATOM: + return arg->atom.atom; + case PRINT_TYPE: + return arg_eval(arg->typecast.item); + case PRINT_OP: + val = arg_num_eval(arg); + sprintf(buf, "%lld", val); + return buf; + + case PRINT_NULL: + case PRINT_FIELD ... PRINT_SYMBOL: + case PRINT_STRING: + default: + die("invalid eval type %d", arg->type); + break; + } + + return NULL; +} + +static enum event_type +process_fields(struct event *event, struct print_flag_sym **list, char **tok) +{ + enum event_type type; + struct print_arg *arg = NULL; + struct print_flag_sym *field; + char *token = NULL; + char *value; + + do { + free_token(token); + type = read_token_item(&token); + if (test_type_token(type, token, EVENT_OP, "{")) + break; + + arg = malloc_or_die(sizeof(*arg)); + + free_token(token); + type = process_arg(event, arg, &token); + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto out_free; + + field = malloc_or_die(sizeof(*field)); + memset(field, 0, sizeof(*field)); + + value = arg_eval(arg); + field->value = strdup(value); + + free_token(token); + type = process_arg(event, arg, &token); + if (test_type_token(type, token, EVENT_OP, "}")) + goto out_free; + + value = arg_eval(arg); + field->str = strdup(value); + free_arg(arg); + arg = NULL; + + *list = field; + list = &field->next; + + free_token(token); + type = read_token_item(&token); + } while (type == EVENT_DELIM && strcmp(token, ",") == 0); + + *tok = token; + return type; + +out_free: + free_arg(arg); + free_token(token); + + return EVENT_ERROR; +} + +static enum event_type +process_flags(struct event *event, struct print_arg *arg, char **tok) +{ + struct print_arg *field; + enum event_type type; + char *token; + + memset(arg, 0, sizeof(*arg)); + arg->type = PRINT_FLAGS; + + if (read_expected_item(EVENT_DELIM, "(") < 0) + return EVENT_ERROR; + + field = malloc_or_die(sizeof(*field)); + + type = process_arg(event, field, &token); + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto out_free; + + arg->flags.field = field; + + type = read_token_item(&token); + if (event_item_type(type)) { + arg->flags.delim = token; + type = read_token_item(&token); + } + + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto out_free; + + type = process_fields(event, &arg->flags.flags, &token); + if (test_type_token(type, token, EVENT_DELIM, ")")) + goto out_free; + + free_token(token); + type = read_token_item(tok); + return type; + +out_free: + free_token(token); + return EVENT_ERROR; +} + +static enum event_type +process_symbols(struct event *event, struct print_arg *arg, char **tok) +{ + struct print_arg *field; + enum event_type type; + char *token; + + memset(arg, 0, sizeof(*arg)); + arg->type = PRINT_SYMBOL; + + if (read_expected_item(EVENT_DELIM, "(") < 0) + return EVENT_ERROR; + + field = malloc_or_die(sizeof(*field)); + + type = process_arg(event, field, &token); + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto out_free; + + arg->symbol.field = field; + + type = process_fields(event, &arg->symbol.symbols, &token); + if (test_type_token(type, token, EVENT_DELIM, ")")) + goto out_free; + + free_token(token); + type = read_token_item(tok); + return type; + +out_free: + free_token(token); + return EVENT_ERROR; +} + +static enum event_type +process_paren(struct event *event, struct print_arg *arg, char **tok) +{ + struct print_arg *item_arg; + enum event_type type; + char *token; + + type = process_arg(event, arg, &token); + + if (type == EVENT_ERROR) + return EVENT_ERROR; + + if (type == EVENT_OP) + type = process_op(event, arg, &token); + + if (type == EVENT_ERROR) + return EVENT_ERROR; + + if (test_type_token(type, token, EVENT_DELIM, ")")) { + free_token(token); + return EVENT_ERROR; + } + + free_token(token); + type = read_token_item(&token); + + /* + * If the next token is an item or another open paren, then + * this was a typecast. + */ + if (event_item_type(type) || + (type == EVENT_DELIM && strcmp(token, "(") == 0)) { + + /* make this a typecast and contine */ + + /* prevous must be an atom */ + if (arg->type != PRINT_ATOM) + die("previous needed to be PRINT_ATOM"); + + item_arg = malloc_or_die(sizeof(*item_arg)); + + arg->type = PRINT_TYPE; + arg->typecast.type = arg->atom.atom; + arg->typecast.item = item_arg; + type = process_arg_token(event, item_arg, &token, type); + + } + + *tok = token; + return type; +} + + +static enum event_type +process_str(struct event *event __unused, struct print_arg *arg, char **tok) +{ + enum event_type type; + char *token; + + if (read_expected(EVENT_DELIM, "(") < 0) + return EVENT_ERROR; + + if (read_expect_type(EVENT_ITEM, &token) < 0) + goto fail; + + arg->type = PRINT_STRING; + arg->string.string = token; + arg->string.offset = -1; + + if (read_expected(EVENT_DELIM, ")") < 0) + return EVENT_ERROR; + + type = read_token(&token); + *tok = token; + + return type; +fail: + free_token(token); + return EVENT_ERROR; +} + +enum event_type +process_arg_token(struct event *event, struct print_arg *arg, + char **tok, enum event_type type) +{ + char *token; + char *atom; + + token = *tok; + + switch (type) { + case EVENT_ITEM: + if (strcmp(token, "REC") == 0) { + free_token(token); + type = process_entry(event, arg, &token); + } else if (strcmp(token, "__print_flags") == 0) { + free_token(token); + is_flag_field = 1; + type = process_flags(event, arg, &token); + } else if (strcmp(token, "__print_symbolic") == 0) { + free_token(token); + is_symbolic_field = 1; + type = process_symbols(event, arg, &token); + } else if (strcmp(token, "__get_str") == 0) { + free_token(token); + type = process_str(event, arg, &token); + } else { + atom = token; + /* test the next token */ + type = read_token_item(&token); + + /* atoms can be more than one token long */ + while (type == EVENT_ITEM) { + atom = realloc(atom, strlen(atom) + strlen(token) + 2); + strcat(atom, " "); + strcat(atom, token); + free_token(token); + type = read_token_item(&token); + } + + /* todo, test for function */ + + arg->type = PRINT_ATOM; + arg->atom.atom = atom; + } + break; + case EVENT_DQUOTE: + case EVENT_SQUOTE: + arg->type = PRINT_ATOM; + arg->atom.atom = token; + type = read_token_item(&token); + break; + case EVENT_DELIM: + if (strcmp(token, "(") == 0) { + free_token(token); + type = process_paren(event, arg, &token); + break; + } + case EVENT_OP: + /* handle single ops */ + arg->type = PRINT_OP; + arg->op.op = token; + arg->op.left = NULL; + type = process_op(event, arg, &token); + + break; + + case EVENT_ERROR ... EVENT_NEWLINE: + default: + die("unexpected type %d", type); + } + *tok = token; + + return type; +} + +static int event_read_print_args(struct event *event, struct print_arg **list) +{ + enum event_type type = EVENT_ERROR; + struct print_arg *arg; + char *token; + int args = 0; + + do { + if (type == EVENT_NEWLINE) { + free_token(token); + type = read_token_item(&token); + continue; + } + + arg = malloc_or_die(sizeof(*arg)); + memset(arg, 0, sizeof(*arg)); + + type = process_arg(event, arg, &token); + + if (type == EVENT_ERROR) { + free_arg(arg); + return -1; + } + + *list = arg; + args++; + + if (type == EVENT_OP) { + type = process_op(event, arg, &token); + list = &arg->next; + continue; + } + + if (type == EVENT_DELIM && strcmp(token, ",") == 0) { + free_token(token); + *list = arg; + list = &arg->next; + continue; + } + break; + } while (type != EVENT_NONE); + + if (type != EVENT_NONE) + free_token(token); + + return args; +} + +static int event_read_print(struct event *event) +{ + enum event_type type; + char *token; + int ret; + + if (read_expected_item(EVENT_ITEM, "print") < 0) + return -1; + + if (read_expected(EVENT_ITEM, "fmt") < 0) + return -1; + + if (read_expected(EVENT_OP, ":") < 0) + return -1; + + if (read_expect_type(EVENT_DQUOTE, &token) < 0) + goto fail; + + concat: + event->print_fmt.format = token; + event->print_fmt.args = NULL; + + /* ok to have no arg */ + type = read_token_item(&token); + + if (type == EVENT_NONE) + return 0; + + /* Handle concatination of print lines */ + if (type == EVENT_DQUOTE) { + char *cat; + + cat = malloc_or_die(strlen(event->print_fmt.format) + + strlen(token) + 1); + strcpy(cat, event->print_fmt.format); + strcat(cat, token); + free_token(token); + free_token(event->print_fmt.format); + event->print_fmt.format = NULL; + token = cat; + goto concat; + } + + if (test_type_token(type, token, EVENT_DELIM, ",")) + goto fail; + + free_token(token); + + ret = event_read_print_args(event, &event->print_fmt.args); + if (ret < 0) + return -1; + + return ret; + + fail: + free_token(token); + return -1; +} + +static struct format_field * +find_common_field(struct event *event, const char *name) +{ + struct format_field *format; + + for (format = event->format.common_fields; + format; format = format->next) { + if (strcmp(format->name, name) == 0) + break; + } + + return format; +} + +static struct format_field * +find_field(struct event *event, const char *name) +{ + struct format_field *format; + + for (format = event->format.fields; + format; format = format->next) { + if (strcmp(format->name, name) == 0) + break; + } + + return format; +} + +static struct format_field * +find_any_field(struct event *event, const char *name) +{ + struct format_field *format; + + format = find_common_field(event, name); + if (format) + return format; + return find_field(event, name); +} + +unsigned long long read_size(void *ptr, int size) +{ + switch (size) { + case 1: + return *(unsigned char *)ptr; + case 2: + return data2host2(ptr); + case 4: + return data2host4(ptr); + case 8: + return data2host8(ptr); + default: + /* BUG! */ + return 0; + } +} + +unsigned long long +raw_field_value(struct event *event, const char *name, void *data) +{ + struct format_field *field; + + field = find_any_field(event, name); + if (!field) + return 0ULL; + + return read_size(data + field->offset, field->size); +} + +void *raw_field_ptr(struct event *event, const char *name, void *data) +{ + struct format_field *field; + + field = find_any_field(event, name); + if (!field) + return NULL; + + if (field->flags & FIELD_IS_DYNAMIC) { + int offset; + + offset = *(int *)(data + field->offset); + offset &= 0xffff; + + return data + offset; + } + + return data + field->offset; +} + +static int get_common_info(const char *type, int *offset, int *size) +{ + struct event *event; + struct format_field *field; + + /* + * All events should have the same common elements. + * Pick any event to find where the type is; + */ + if (!event_list) + die("no event_list!"); + + event = event_list; + field = find_common_field(event, type); + if (!field) + die("field '%s' not found", type); + + *offset = field->offset; + *size = field->size; + + return 0; +} + +static int __parse_common(void *data, int *size, int *offset, + const char *name) +{ + int ret; + + if (!*size) { + ret = get_common_info(name, offset, size); + if (ret < 0) + return ret; + } + return read_size(data + *offset, *size); +} + +int trace_parse_common_type(void *data) +{ + static int type_offset; + static int type_size; + + return __parse_common(data, &type_size, &type_offset, + "common_type"); +} + +int trace_parse_common_pid(void *data) +{ + static int pid_offset; + static int pid_size; + + return __parse_common(data, &pid_size, &pid_offset, + "common_pid"); +} + +int parse_common_pc(void *data) +{ + static int pc_offset; + static int pc_size; + + return __parse_common(data, &pc_size, &pc_offset, + "common_preempt_count"); +} + +int parse_common_flags(void *data) +{ + static int flags_offset; + static int flags_size; + + return __parse_common(data, &flags_size, &flags_offset, + "common_flags"); +} + +int parse_common_lock_depth(void *data) +{ + static int ld_offset; + static int ld_size; + int ret; + + ret = __parse_common(data, &ld_size, &ld_offset, + "common_lock_depth"); + if (ret < 0) + return -1; + + return ret; +} + +struct event *trace_find_event(int id) +{ + struct event *event; + + for (event = event_list; event; event = event->next) { + if (event->id == id) + break; + } + return event; +} + +struct event *trace_find_next_event(struct event *event) +{ + if (!event) + return event_list; + + return event->next; +} + +static unsigned long long eval_num_arg(void *data, int size, + struct event *event, struct print_arg *arg) +{ + unsigned long long val = 0; + unsigned long long left, right; + struct print_arg *larg; + + switch (arg->type) { + case PRINT_NULL: + /* ?? */ + return 0; + case PRINT_ATOM: + return strtoull(arg->atom.atom, NULL, 0); + case PRINT_FIELD: + if (!arg->field.field) { + arg->field.field = find_any_field(event, arg->field.name); + if (!arg->field.field) + die("field %s not found", arg->field.name); + } + /* must be a number */ + val = read_size(data + arg->field.field->offset, + arg->field.field->size); + break; + case PRINT_FLAGS: + case PRINT_SYMBOL: + break; + case PRINT_TYPE: + return eval_num_arg(data, size, event, arg->typecast.item); + case PRINT_STRING: + return 0; + break; + case PRINT_OP: + if (strcmp(arg->op.op, "[") == 0) { + /* + * Arrays are special, since we don't want + * to read the arg as is. + */ + if (arg->op.left->type != PRINT_FIELD) + goto default_op; /* oops, all bets off */ + larg = arg->op.left; + if (!larg->field.field) { + larg->field.field = + find_any_field(event, larg->field.name); + if (!larg->field.field) + die("field %s not found", larg->field.name); + } + right = eval_num_arg(data, size, event, arg->op.right); + val = read_size(data + larg->field.field->offset + + right * long_size, long_size); + break; + } + default_op: + left = eval_num_arg(data, size, event, arg->op.left); + right = eval_num_arg(data, size, event, arg->op.right); + switch (arg->op.op[0]) { + case '|': + if (arg->op.op[1]) + val = left || right; + else + val = left | right; + break; + case '&': + if (arg->op.op[1]) + val = left && right; + else + val = left & right; + break; + case '<': + switch (arg->op.op[1]) { + case 0: + val = left < right; + break; + case '<': + val = left << right; + break; + case '=': + val = left <= right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + case '>': + switch (arg->op.op[1]) { + case 0: + val = left > right; + break; + case '>': + val = left >> right; + break; + case '=': + val = left >= right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + case '=': + if (arg->op.op[1] != '=') + die("unknown op '%s'", arg->op.op); + val = left == right; + break; + case '-': + val = left - right; + break; + case '+': + val = left + right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + default: /* not sure what to do there */ + return 0; + } + return val; +} + +struct flag { + const char *name; + unsigned long long value; +}; + +static const struct flag flags[] = { + { "HI_SOFTIRQ", 0 }, + { "TIMER_SOFTIRQ", 1 }, + { "NET_TX_SOFTIRQ", 2 }, + { "NET_RX_SOFTIRQ", 3 }, + { "BLOCK_SOFTIRQ", 4 }, + { "BLOCK_IOPOLL_SOFTIRQ", 5 }, + { "TASKLET_SOFTIRQ", 6 }, + { "SCHED_SOFTIRQ", 7 }, + { "HRTIMER_SOFTIRQ", 8 }, + { "RCU_SOFTIRQ", 9 }, + + { "HRTIMER_NORESTART", 0 }, + { "HRTIMER_RESTART", 1 }, +}; + +unsigned long long eval_flag(const char *flag) +{ + int i; + + /* + * Some flags in the format files do not get converted. + * If the flag is not numeric, see if it is something that + * we already know about. + */ + if (isdigit(flag[0])) + return strtoull(flag, NULL, 0); + + for (i = 0; i < (int)(sizeof(flags)/sizeof(flags[0])); i++) + if (strcmp(flags[i].name, flag) == 0) + return flags[i].value; + + return 0; +} + +static void print_str_arg(void *data, int size, + struct event *event, struct print_arg *arg) +{ + struct print_flag_sym *flag; + unsigned long long val, fval; + char *str; + int print; + + switch (arg->type) { + case PRINT_NULL: + /* ?? */ + return; + case PRINT_ATOM: + printf("%s", arg->atom.atom); + return; + case PRINT_FIELD: + if (!arg->field.field) { + arg->field.field = find_any_field(event, arg->field.name); + if (!arg->field.field) + die("field %s not found", arg->field.name); + } + str = malloc_or_die(arg->field.field->size + 1); + memcpy(str, data + arg->field.field->offset, + arg->field.field->size); + str[arg->field.field->size] = 0; + printf("%s", str); + free(str); + break; + case PRINT_FLAGS: + val = eval_num_arg(data, size, event, arg->flags.field); + print = 0; + for (flag = arg->flags.flags; flag; flag = flag->next) { + fval = eval_flag(flag->value); + if (!val && !fval) { + printf("%s", flag->str); + break; + } + if (fval && (val & fval) == fval) { + if (print && arg->flags.delim) + printf("%s", arg->flags.delim); + printf("%s", flag->str); + print = 1; + val &= ~fval; + } + } + break; + case PRINT_SYMBOL: + val = eval_num_arg(data, size, event, arg->symbol.field); + for (flag = arg->symbol.symbols; flag; flag = flag->next) { + fval = eval_flag(flag->value); + if (val == fval) { + printf("%s", flag->str); + break; + } + } + break; + + case PRINT_TYPE: + break; + case PRINT_STRING: { + int str_offset; + + if (arg->string.offset == -1) { + struct format_field *f; + + f = find_any_field(event, arg->string.string); + arg->string.offset = f->offset; + } + str_offset = *(int *)(data + arg->string.offset); + str_offset &= 0xffff; + printf("%s", ((char *)data) + str_offset); + break; + } + case PRINT_OP: + /* + * The only op for string should be ? : + */ + if (arg->op.op[0] != '?') + return; + val = eval_num_arg(data, size, event, arg->op.left); + if (val) + print_str_arg(data, size, event, arg->op.right->op.left); + else + print_str_arg(data, size, event, arg->op.right->op.right); + break; + default: + /* well... */ + break; + } +} + +static struct print_arg *make_bprint_args(char *fmt, void *data, int size, struct event *event) +{ + static struct format_field *field, *ip_field; + struct print_arg *args, *arg, **next; + unsigned long long ip, val; + char *ptr; + void *bptr; + + if (!field) { + field = find_field(event, "buf"); + if (!field) + die("can't find buffer field for binary printk"); + ip_field = find_field(event, "ip"); + if (!ip_field) + die("can't find ip field for binary printk"); + } + + ip = read_size(data + ip_field->offset, ip_field->size); + + /* + * The first arg is the IP pointer. + */ + args = malloc_or_die(sizeof(*args)); + arg = args; + arg->next = NULL; + next = &arg->next; + + arg->type = PRINT_ATOM; + arg->atom.atom = malloc_or_die(32); + sprintf(arg->atom.atom, "%lld", ip); + + /* skip the first "%pf : " */ + for (ptr = fmt + 6, bptr = data + field->offset; + bptr < data + size && *ptr; ptr++) { + int ls = 0; + + if (*ptr == '%') { + process_again: + ptr++; + switch (*ptr) { + case '%': + break; + case 'l': + ls++; + goto process_again; + case 'L': + ls = 2; + goto process_again; + case '0' ... '9': + goto process_again; + case 'p': + ls = 1; + /* fall through */ + case 'd': + case 'u': + case 'x': + case 'i': + /* the pointers are always 4 bytes aligned */ + bptr = (void *)(((unsigned long)bptr + 3) & + ~3); + switch (ls) { + case 0: + case 1: + ls = long_size; + break; + case 2: + ls = 8; + default: + break; + } + val = read_size(bptr, ls); + bptr += ls; + arg = malloc_or_die(sizeof(*arg)); + arg->next = NULL; + arg->type = PRINT_ATOM; + arg->atom.atom = malloc_or_die(32); + sprintf(arg->atom.atom, "%lld", val); + *next = arg; + next = &arg->next; + break; + case 's': + arg = malloc_or_die(sizeof(*arg)); + arg->next = NULL; + arg->type = PRINT_STRING; + arg->string.string = strdup(bptr); + bptr += strlen(bptr) + 1; + *next = arg; + next = &arg->next; + default: + break; + } + } + } + + return args; +} + +static void free_args(struct print_arg *args) +{ + struct print_arg *next; + + while (args) { + next = args->next; + + if (args->type == PRINT_ATOM) + free(args->atom.atom); + else + free(args->string.string); + free(args); + args = next; + } +} + +static char *get_bprint_format(void *data, int size __unused, struct event *event) +{ + unsigned long long addr; + static struct format_field *field; + struct printk_map *printk; + char *format; + char *p; + + if (!field) { + field = find_field(event, "fmt"); + if (!field) + die("can't find format field for binary printk"); + printf("field->offset = %d size=%d\n", field->offset, field->size); + } + + addr = read_size(data + field->offset, field->size); + + printk = find_printk(addr); + if (!printk) { + format = malloc_or_die(45); + sprintf(format, "%%pf : (NO FORMAT FOUND at %llx)\n", + addr); + return format; + } + + p = printk->printk; + /* Remove any quotes. */ + if (*p == '"') + p++; + format = malloc_or_die(strlen(p) + 10); + sprintf(format, "%s : %s", "%pf", p); + /* remove ending quotes and new line since we will add one too */ + p = format + strlen(format) - 1; + if (*p == '"') + *p = 0; + + p -= 2; + if (strcmp(p, "\\n") == 0) + *p = 0; + + return format; +} + +static void pretty_print(void *data, int size, struct event *event) +{ + struct print_fmt *print_fmt = &event->print_fmt; + struct print_arg *arg = print_fmt->args; + struct print_arg *args = NULL; + const char *ptr = print_fmt->format; + unsigned long long val; + struct func_map *func; + const char *saveptr; + char *bprint_fmt = NULL; + char format[32]; + int show_func; + int len; + int ls; + + if (event->flags & EVENT_FL_ISFUNC) + ptr = " %pF <-- %pF"; + + if (event->flags & EVENT_FL_ISBPRINT) { + bprint_fmt = get_bprint_format(data, size, event); + args = make_bprint_args(bprint_fmt, data, size, event); + arg = args; + ptr = bprint_fmt; + } + + for (; *ptr; ptr++) { + ls = 0; + if (*ptr == '\\') { + ptr++; + switch (*ptr) { + case 'n': + printf("\n"); + break; + case 't': + printf("\t"); + break; + case 'r': + printf("\r"); + break; + case '\\': + printf("\\"); + break; + default: + printf("%c", *ptr); + break; + } + + } else if (*ptr == '%') { + saveptr = ptr; + show_func = 0; + cont_process: + ptr++; + switch (*ptr) { + case '%': + printf("%%"); + break; + case 'l': + ls++; + goto cont_process; + case 'L': + ls = 2; + goto cont_process; + case 'z': + case 'Z': + case '0' ... '9': + goto cont_process; + case 'p': + if (long_size == 4) + ls = 1; + else + ls = 2; + + if (*(ptr+1) == 'F' || + *(ptr+1) == 'f') { + ptr++; + show_func = *ptr; + } + + /* fall through */ + case 'd': + case 'i': + case 'x': + case 'X': + case 'u': + if (!arg) + die("no argument match"); + + len = ((unsigned long)ptr + 1) - + (unsigned long)saveptr; + + /* should never happen */ + if (len > 32) + die("bad format!"); + + memcpy(format, saveptr, len); + format[len] = 0; + + val = eval_num_arg(data, size, event, arg); + arg = arg->next; + + if (show_func) { + func = find_func(val); + if (func) { + printf("%s", func->func); + if (show_func == 'F') + printf("+0x%llx", + val - func->addr); + break; + } + } + switch (ls) { + case 0: + printf(format, (int)val); + break; + case 1: + printf(format, (long)val); + break; + case 2: + printf(format, (long long)val); + break; + default: + die("bad count (%d)", ls); + } + break; + case 's': + if (!arg) + die("no matching argument"); + + print_str_arg(data, size, event, arg); + arg = arg->next; + break; + default: + printf(">%c<", *ptr); + + } + } else + printf("%c", *ptr); + } + + if (args) { + free_args(args); + free(bprint_fmt); + } +} + +static inline int log10_cpu(int nb) +{ + if (nb / 100) + return 3; + if (nb / 10) + return 2; + return 1; +} + +static void print_lat_fmt(void *data, int size __unused) +{ + unsigned int lat_flags; + unsigned int pc; + int lock_depth; + int hardirq; + int softirq; + + lat_flags = parse_common_flags(data); + pc = parse_common_pc(data); + lock_depth = parse_common_lock_depth(data); + + hardirq = lat_flags & TRACE_FLAG_HARDIRQ; + softirq = lat_flags & TRACE_FLAG_SOFTIRQ; + + printf("%c%c%c", + (lat_flags & TRACE_FLAG_IRQS_OFF) ? 'd' : + (lat_flags & TRACE_FLAG_IRQS_NOSUPPORT) ? + 'X' : '.', + (lat_flags & TRACE_FLAG_NEED_RESCHED) ? + 'N' : '.', + (hardirq && softirq) ? 'H' : + hardirq ? 'h' : softirq ? 's' : '.'); + + if (pc) + printf("%x", pc); + else + printf("."); + + if (lock_depth < 0) + printf(". "); + else + printf("%d ", lock_depth); +} + +#define TRACE_GRAPH_INDENT 2 + +static struct record * +get_return_for_leaf(int cpu, int cur_pid, unsigned long long cur_func, + struct record *next) +{ + struct format_field *field; + struct event *event; + unsigned long val; + int type; + int pid; + + type = trace_parse_common_type(next->data); + event = trace_find_event(type); + if (!event) + return NULL; + + if (!(event->flags & EVENT_FL_ISFUNCRET)) + return NULL; + + pid = trace_parse_common_pid(next->data); + field = find_field(event, "func"); + if (!field) + die("function return does not have field func"); + + val = read_size(next->data + field->offset, field->size); + + if (cur_pid != pid || cur_func != val) + return NULL; + + /* this is a leaf, now advance the iterator */ + return trace_read_data(cpu); +} + +/* Signal a overhead of time execution to the output */ +static void print_graph_overhead(unsigned long long duration) +{ + /* Non nested entry or return */ + if (duration == ~0ULL) + return (void)printf(" "); + + /* Duration exceeded 100 msecs */ + if (duration > 100000ULL) + return (void)printf("! "); + + /* Duration exceeded 10 msecs */ + if (duration > 10000ULL) + return (void)printf("+ "); + + printf(" "); +} + +static void print_graph_duration(unsigned long long duration) +{ + unsigned long usecs = duration / 1000; + unsigned long nsecs_rem = duration % 1000; + /* log10(ULONG_MAX) + '\0' */ + char msecs_str[21]; + char nsecs_str[5]; + int len; + int i; + + sprintf(msecs_str, "%lu", usecs); + + /* Print msecs */ + len = printf("%lu", usecs); + + /* Print nsecs (we don't want to exceed 7 numbers) */ + if (len < 7) { + snprintf(nsecs_str, 8 - len, "%03lu", nsecs_rem); + len += printf(".%s", nsecs_str); + } + + printf(" us "); + + /* Print remaining spaces to fit the row's width */ + for (i = len; i < 7; i++) + printf(" "); + + printf("| "); +} + +static void +print_graph_entry_leaf(struct event *event, void *data, struct record *ret_rec) +{ + unsigned long long rettime, calltime; + unsigned long long duration, depth; + unsigned long long val; + struct format_field *field; + struct func_map *func; + struct event *ret_event; + int type; + int i; + + type = trace_parse_common_type(ret_rec->data); + ret_event = trace_find_event(type); + + field = find_field(ret_event, "rettime"); + if (!field) + die("can't find rettime in return graph"); + rettime = read_size(ret_rec->data + field->offset, field->size); + + field = find_field(ret_event, "calltime"); + if (!field) + die("can't find rettime in return graph"); + calltime = read_size(ret_rec->data + field->offset, field->size); + + duration = rettime - calltime; + + /* Overhead */ + print_graph_overhead(duration); + + /* Duration */ + print_graph_duration(duration); + + field = find_field(event, "depth"); + if (!field) + die("can't find depth in entry graph"); + depth = read_size(data + field->offset, field->size); + + /* Function */ + for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) + printf(" "); + + field = find_field(event, "func"); + if (!field) + die("can't find func in entry graph"); + val = read_size(data + field->offset, field->size); + func = find_func(val); + + if (func) + printf("%s();", func->func); + else + printf("%llx();", val); +} + +static void print_graph_nested(struct event *event, void *data) +{ + struct format_field *field; + unsigned long long depth; + unsigned long long val; + struct func_map *func; + int i; + + /* No overhead */ + print_graph_overhead(-1); + + /* No time */ + printf(" | "); + + field = find_field(event, "depth"); + if (!field) + die("can't find depth in entry graph"); + depth = read_size(data + field->offset, field->size); + + /* Function */ + for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) + printf(" "); + + field = find_field(event, "func"); + if (!field) + die("can't find func in entry graph"); + val = read_size(data + field->offset, field->size); + func = find_func(val); + + if (func) + printf("%s() {", func->func); + else + printf("%llx() {", val); +} + +static void +pretty_print_func_ent(void *data, int size, struct event *event, + int cpu, int pid) +{ + struct format_field *field; + struct record *rec; + void *copy_data; + unsigned long val; + + if (latency_format) { + print_lat_fmt(data, size); + printf(" | "); + } + + field = find_field(event, "func"); + if (!field) + die("function entry does not have func field"); + + val = read_size(data + field->offset, field->size); + + /* + * peek_data may unmap the data pointer. Copy it first. + */ + copy_data = malloc_or_die(size); + memcpy(copy_data, data, size); + data = copy_data; + + rec = trace_peek_data(cpu); + if (rec) { + rec = get_return_for_leaf(cpu, pid, val, rec); + if (rec) { + print_graph_entry_leaf(event, data, rec); + goto out_free; + } + } + print_graph_nested(event, data); +out_free: + free(data); +} + +static void +pretty_print_func_ret(void *data, int size __unused, struct event *event) +{ + unsigned long long rettime, calltime; + unsigned long long duration, depth; + struct format_field *field; + int i; + + if (latency_format) { + print_lat_fmt(data, size); + printf(" | "); + } + + field = find_field(event, "rettime"); + if (!field) + die("can't find rettime in return graph"); + rettime = read_size(data + field->offset, field->size); + + field = find_field(event, "calltime"); + if (!field) + die("can't find calltime in return graph"); + calltime = read_size(data + field->offset, field->size); + + duration = rettime - calltime; + + /* Overhead */ + print_graph_overhead(duration); + + /* Duration */ + print_graph_duration(duration); + + field = find_field(event, "depth"); + if (!field) + die("can't find depth in entry graph"); + depth = read_size(data + field->offset, field->size); + + /* Function */ + for (i = 0; i < (int)(depth * TRACE_GRAPH_INDENT); i++) + printf(" "); + + printf("}"); +} + +static void +pretty_print_func_graph(void *data, int size, struct event *event, + int cpu, int pid) +{ + if (event->flags & EVENT_FL_ISFUNCENT) + pretty_print_func_ent(data, size, event, cpu, pid); + else if (event->flags & EVENT_FL_ISFUNCRET) + pretty_print_func_ret(data, size, event); + printf("\n"); +} + +void print_trace_event(int cpu, void *data, int size) +{ + struct event *event; + int type; + int pid; + + type = trace_parse_common_type(data); + + event = trace_find_event(type); + if (!event) { + warning("ug! no event found for type %d", type); + return; + } + + pid = trace_parse_common_pid(data); + + if (event->flags & (EVENT_FL_ISFUNCENT | EVENT_FL_ISFUNCRET)) + return pretty_print_func_graph(data, size, event, cpu, pid); + + if (latency_format) + print_lat_fmt(data, size); + + if (event->flags & EVENT_FL_FAILED) { + printf("EVENT '%s' FAILED TO PARSE\n", + event->name); + return; + } + + pretty_print(data, size, event); +} + +static void print_fields(struct print_flag_sym *field) +{ + printf("{ %s, %s }", field->value, field->str); + if (field->next) { + printf(", "); + print_fields(field->next); + } +} + +static void print_args(struct print_arg *args) +{ + int print_paren = 1; + + switch (args->type) { + case PRINT_NULL: + printf("null"); + break; + case PRINT_ATOM: + printf("%s", args->atom.atom); + break; + case PRINT_FIELD: + printf("REC->%s", args->field.name); + break; + case PRINT_FLAGS: + printf("__print_flags("); + print_args(args->flags.field); + printf(", %s, ", args->flags.delim); + print_fields(args->flags.flags); + printf(")"); + break; + case PRINT_SYMBOL: + printf("__print_symbolic("); + print_args(args->symbol.field); + printf(", "); + print_fields(args->symbol.symbols); + printf(")"); + break; + case PRINT_STRING: + printf("__get_str(%s)", args->string.string); + break; + case PRINT_TYPE: + printf("(%s)", args->typecast.type); + print_args(args->typecast.item); + break; + case PRINT_OP: + if (strcmp(args->op.op, ":") == 0) + print_paren = 0; + if (print_paren) + printf("("); + print_args(args->op.left); + printf(" %s ", args->op.op); + print_args(args->op.right); + if (print_paren) + printf(")"); + break; + default: + /* we should warn... */ + return; + } + if (args->next) { + printf("\n"); + print_args(args->next); + } +} + +int parse_ftrace_file(char *buf, unsigned long size) +{ + struct format_field *field; + struct print_arg *arg, **list; + struct event *event; + int ret; + + init_input_buf(buf, size); + + event = alloc_event(); + if (!event) + return -ENOMEM; + + event->flags |= EVENT_FL_ISFTRACE; + + event->name = event_read_name(); + if (!event->name) + die("failed to read ftrace event name"); + + if (strcmp(event->name, "function") == 0) + event->flags |= EVENT_FL_ISFUNC; + + else if (strcmp(event->name, "funcgraph_entry") == 0) + event->flags |= EVENT_FL_ISFUNCENT; + + else if (strcmp(event->name, "funcgraph_exit") == 0) + event->flags |= EVENT_FL_ISFUNCRET; + + else if (strcmp(event->name, "bprint") == 0) + event->flags |= EVENT_FL_ISBPRINT; + + event->id = event_read_id(); + if (event->id < 0) + die("failed to read ftrace event id"); + + add_event(event); + + ret = event_read_format(event); + if (ret < 0) + die("failed to read ftrace event format"); + + ret = event_read_print(event); + if (ret < 0) + die("failed to read ftrace event print fmt"); + + /* New ftrace handles args */ + if (ret > 0) + return 0; + /* + * The arguments for ftrace files are parsed by the fields. + * Set up the fields as their arguments. + */ + list = &event->print_fmt.args; + for (field = event->format.fields; field; field = field->next) { + arg = malloc_or_die(sizeof(*arg)); + memset(arg, 0, sizeof(*arg)); + *list = arg; + list = &arg->next; + arg->type = PRINT_FIELD; + arg->field.name = field->name; + arg->field.field = field; + } + return 0; +} + +int parse_event_file(char *buf, unsigned long size, char *sys) +{ + struct event *event; + int ret; + + init_input_buf(buf, size); + + event = alloc_event(); + if (!event) + return -ENOMEM; + + event->name = event_read_name(); + if (!event->name) + die("failed to read event name"); + + event->id = event_read_id(); + if (event->id < 0) + die("failed to read event id"); + + ret = event_read_format(event); + if (ret < 0) { + warning("failed to read event format for %s", event->name); + goto event_failed; + } + + ret = event_read_print(event); + if (ret < 0) { + warning("failed to read event print fmt for %s", event->name); + goto event_failed; + } + + event->system = strdup(sys); + +#define PRINT_ARGS 0 + if (PRINT_ARGS && event->print_fmt.args) + print_args(event->print_fmt.args); + + add_event(event); + return 0; + + event_failed: + event->flags |= EVENT_FL_FAILED; + /* still add it even if it failed */ + add_event(event); + return -1; +} + +void parse_set_info(int nr_cpus, int long_sz) +{ + cpus = nr_cpus; + long_size = long_sz; +} diff --git a/tools/perf/util/trace-parse-events.h b/tools/perf/util/trace-parse-events.h new file mode 100644 index 000000000000..794ec15ef084 --- /dev/null +++ b/tools/perf/util/trace-parse-events.h @@ -0,0 +1,273 @@ +#ifndef __PERF_TRACE_EVENTS_H +#define __PERF_TRACE_EVENTS_H + +#include <stdbool.h> +#include <unistd.h> + +#define __unused __attribute__((unused)) + + +#ifndef PAGE_MASK +#define PAGE_MASK (page_size - 1) +#endif + +enum { + RINGBUF_TYPE_PADDING = 29, + RINGBUF_TYPE_TIME_EXTEND = 30, + RINGBUF_TYPE_TIME_STAMP = 31, +}; + +#ifndef TS_SHIFT +#define TS_SHIFT 27 +#endif + +#define NSECS_PER_SEC 1000000000ULL +#define NSECS_PER_USEC 1000ULL + +enum format_flags { + FIELD_IS_ARRAY = 1, + FIELD_IS_POINTER = 2, + FIELD_IS_SIGNED = 4, + FIELD_IS_STRING = 8, + FIELD_IS_DYNAMIC = 16, + FIELD_IS_FLAG = 32, + FIELD_IS_SYMBOLIC = 64, +}; + +struct format_field { + struct format_field *next; + char *type; + char *name; + int offset; + int size; + unsigned long flags; +}; + +struct format { + int nr_common; + int nr_fields; + struct format_field *common_fields; + struct format_field *fields; +}; + +struct print_arg_atom { + char *atom; +}; + +struct print_arg_string { + char *string; + int offset; +}; + +struct print_arg_field { + char *name; + struct format_field *field; +}; + +struct print_flag_sym { + struct print_flag_sym *next; + char *value; + char *str; +}; + +struct print_arg_typecast { + char *type; + struct print_arg *item; +}; + +struct print_arg_flags { + struct print_arg *field; + char *delim; + struct print_flag_sym *flags; +}; + +struct print_arg_symbol { + struct print_arg *field; + struct print_flag_sym *symbols; +}; + +struct print_arg; + +struct print_arg_op { + char *op; + int prio; + struct print_arg *left; + struct print_arg *right; +}; + +struct print_arg_func { + char *name; + struct print_arg *args; +}; + +enum print_arg_type { + PRINT_NULL, + PRINT_ATOM, + PRINT_FIELD, + PRINT_FLAGS, + PRINT_SYMBOL, + PRINT_TYPE, + PRINT_STRING, + PRINT_OP, +}; + +struct print_arg { + struct print_arg *next; + enum print_arg_type type; + union { + struct print_arg_atom atom; + struct print_arg_field field; + struct print_arg_typecast typecast; + struct print_arg_flags flags; + struct print_arg_symbol symbol; + struct print_arg_func func; + struct print_arg_string string; + struct print_arg_op op; + }; +}; + +struct print_fmt { + char *format; + struct print_arg *args; +}; + +struct event { + struct event *next; + char *name; + int id; + int flags; + struct format format; + struct print_fmt print_fmt; + char *system; +}; + +enum { + EVENT_FL_ISFTRACE = 0x01, + EVENT_FL_ISPRINT = 0x02, + EVENT_FL_ISBPRINT = 0x04, + EVENT_FL_ISFUNC = 0x08, + EVENT_FL_ISFUNCENT = 0x10, + EVENT_FL_ISFUNCRET = 0x20, + + EVENT_FL_FAILED = 0x80000000 +}; + +struct record { + unsigned long long ts; + int size; + void *data; +}; + +struct record *trace_peek_data(int cpu); +struct record *trace_read_data(int cpu); + +void parse_set_info(int nr_cpus, int long_sz); + +ssize_t trace_report(int fd, bool repipe); + +void *malloc_or_die(unsigned int size); + +void parse_cmdlines(char *file, int size); +void parse_proc_kallsyms(char *file, unsigned int size); +void parse_ftrace_printk(char *file, unsigned int size); + +void print_funcs(void); +void print_printk(void); + +int parse_ftrace_file(char *buf, unsigned long size); +int parse_event_file(char *buf, unsigned long size, char *sys); +void print_trace_event(int cpu, void *data, int size); + +extern int file_bigendian; +extern int host_bigendian; + +int bigendian(void); + +static inline unsigned short __data2host2(unsigned short data) +{ + unsigned short swap; + + if (host_bigendian == file_bigendian) + return data; + + swap = ((data & 0xffULL) << 8) | + ((data & (0xffULL << 8)) >> 8); + + return swap; +} + +static inline unsigned int __data2host4(unsigned int data) +{ + unsigned int swap; + + if (host_bigendian == file_bigendian) + return data; + + swap = ((data & 0xffULL) << 24) | + ((data & (0xffULL << 8)) << 8) | + ((data & (0xffULL << 16)) >> 8) | + ((data & (0xffULL << 24)) >> 24); + + return swap; +} + +static inline unsigned long long __data2host8(unsigned long long data) +{ + unsigned long long swap; + + if (host_bigendian == file_bigendian) + return data; + + swap = ((data & 0xffULL) << 56) | + ((data & (0xffULL << 8)) << 40) | + ((data & (0xffULL << 16)) << 24) | + ((data & (0xffULL << 24)) << 8) | + ((data & (0xffULL << 32)) >> 8) | + ((data & (0xffULL << 40)) >> 24) | + ((data & (0xffULL << 48)) >> 40) | + ((data & (0xffULL << 56)) >> 56); + + return swap; +} + +#define data2host2(ptr) __data2host2(*(unsigned short *)ptr) +#define data2host4(ptr) __data2host4(*(unsigned int *)ptr) +#define data2host8(ptr) ({ \ + unsigned long long __val; \ + \ + memcpy(&__val, (ptr), sizeof(unsigned long long)); \ + __data2host8(__val); \ +}) + +extern int header_page_ts_offset; +extern int header_page_ts_size; +extern int header_page_size_offset; +extern int header_page_size_size; +extern int header_page_data_offset; +extern int header_page_data_size; + +extern bool latency_format; + +int trace_parse_common_type(void *data); +int trace_parse_common_pid(void *data); +int parse_common_pc(void *data); +int parse_common_flags(void *data); +int parse_common_lock_depth(void *data); +struct event *trace_find_event(int id); +struct event *trace_find_next_event(struct event *event); +unsigned long long read_size(void *ptr, int size); +unsigned long long +raw_field_value(struct event *event, const char *name, void *data); +void *raw_field_ptr(struct event *event, const char *name, void *data); +unsigned long long eval_flag(const char *flag); + +/* taken from kernel/trace/trace.h */ +enum trace_flag_type { + TRACE_FLAG_IRQS_OFF = 0x01, + TRACE_FLAG_IRQS_NOSUPPORT = 0x02, + TRACE_FLAG_NEED_RESCHED = 0x04, + TRACE_FLAG_HARDIRQ = 0x08, + TRACE_FLAG_SOFTIRQ = 0x10, +}; + +#endif /* __PERF_TRACE_EVENTS_H */ |