---

yaml
---
r: 169631
b: refs/heads/master
c: c34984b
h: refs/heads/master
i:
  169629: 06a81db
  169627: 836231b
  169623: 4081ef3
  169615: 3ff9a25
  169599: 2e6fb7e
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9e03eb2d512e7f3a1e562d4b922aa8b1891750b6
+refs/heads/master: c34984b2bbc77596c97c333539bffc90d2033178

trunk/tools/perf/Documentation/perf-buildid-list.txt

@@ -0,0 +1,34 @@
+perf-buildid-list(1)
+====================
+
+NAME
+----
+perf-buildid-list - List the buildids in a perf.data file
+
+SYNOPSIS
+--------
+[verse]
+'perf buildid-list <options>'
+
+DESCRIPTION
+-----------
+This command displays the buildids found in a perf.data file, so that other
+tools can be used to fetch packages with matching symbol tables for use by
+perf report.
+
+OPTIONS
+-------
+-i::
+--input=::
+        Input file name. (default: perf.data)
+-f::
+--force::
+	Don't do ownership validation.
+-v::
+--verbose::
+	Be more verbose, showing the name of the DSOs after the buildids.
+
+SEE ALSO
+--------
+linkperf:perf-record[1], linkperf:perf-top[1],
+linkperf:perf-report[1]

trunk/tools/perf/Makefile

@@ -430,6 +430,7 @@ BUILTIN_OBJS += bench/sched-pipe.o
 
 BUILTIN_OBJS += builtin-help.o
 BUILTIN_OBJS += builtin-sched.o
+BUILTIN_OBJS += builtin-buildid-list.o
 BUILTIN_OBJS += builtin-list.o
 BUILTIN_OBJS += builtin-record.o
 BUILTIN_OBJS += builtin-report.o

trunk/tools/perf/builtin-buildid-list.c

@@ -0,0 +1,116 @@
+/*
+ * builtin-buildid-list.c
+ *
+ * Builtin buildid-list command: list buildids in perf.data
+ *
+ * Copyright (C) 2009, Red Hat Inc.
+ * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com>
+ */
+#include "builtin.h"
+#include "perf.h"
+#include "util/cache.h"
+#include "util/data_map.h"
+#include "util/debug.h"
+#include "util/header.h"
+#include "util/parse-options.h"
+#include "util/symbol.h"
+
+static char const *input_name = "perf.data";
+static int force;
+
+static const char *const buildid_list_usage[] = {
+	"perf report [<options>]",
+	NULL
+};
+
+static const struct option options[] = {
+	OPT_STRING('i', "input", &input_name, "file",
+		    "input file name"),
+	OPT_BOOLEAN('f', "force", &force, "don't complain, do it"),
+	OPT_BOOLEAN('v', "verbose", &verbose,
+		    "be more verbose (show counter open errors, etc)"),
+	OPT_END()
+};
+
+static int perf_file_section__process_buildids(struct perf_file_section *self,
+					       int feat, int fd)
+{
+	if (feat != HEADER_BUILD_ID)
+		return 0;
+
+	if (lseek(fd, self->offset, SEEK_SET) < 0) {
+		pr_warning("Failed to lseek to %Ld offset for buildids!\n",
+			   self->offset);
+		return -1;
+	}
+
+	if (perf_header__read_build_ids(fd, self->offset, self->size)) {
+		pr_warning("Failed to read buildids!\n");
+		return -1;
+	}
+
+	return 0;
+}
+
+static int __cmd_buildid_list(void)
+{
+	int err = -1;
+	struct perf_header *header;
+	struct perf_file_header f_header;
+	struct stat input_stat;
+	int input = open(input_name, O_RDONLY);
+
+	if (input < 0) {
+		pr_err("failed to open file: %s", input_name);
+		if (!strcmp(input_name, "perf.data"))
+			pr_err("  (try 'perf record' first)");
+		pr_err("\n");
+		goto out;
+	}
+
+	err = fstat(input, &input_stat);
+	if (err < 0) {
+		perror("failed to stat file");
+		goto out_close;
+	}
+
+	if (!force && input_stat.st_uid && (input_stat.st_uid != geteuid())) {
+		pr_err("file %s not owned by current user or root\n",
+		       input_name);
+		goto out_close;
+	}
+
+	if (!input_stat.st_size) {
+		pr_info("zero-sized file, nothing to do!\n");
+		goto out_close;
+	}
+
+	err = -1;
+	header = perf_header__new();
+	if (header == NULL)
+		goto out_close;
+
+	if (perf_file_header__read(&f_header, header, input) < 0) {
+		pr_warning("incompatible file format");
+		goto out_close;
+	}
+
+	err = perf_header__process_sections(header, input,
+				         perf_file_section__process_buildids);
+
+	if (err < 0)
+		goto out_close;
+
+	dsos__fprintf_buildid(stdout);
+out_close:
+	close(input);
+out:
+	return err;
+}
+
+int cmd_buildid_list(int argc, const char **argv, const char *prefix __used)
+{
+	argc = parse_options(argc, argv, options, buildid_list_usage, 0);
+	setup_pager();
+	return __cmd_buildid_list();
+}

trunk/tools/perf/builtin.h

@@ -16,6 +16,7 @@ extern int check_pager_config(const char *cmd);
 
 extern int cmd_annotate(int argc, const char **argv, const char *prefix);
 extern int cmd_bench(int argc, const char **argv, const char *prefix);
+extern int cmd_buildid_list(int argc, const char **argv, const char *prefix);
 extern int cmd_help(int argc, const char **argv, const char *prefix);
 extern int cmd_sched(int argc, const char **argv, const char *prefix);
 extern int cmd_list(int argc, const char **argv, const char *prefix);

trunk/tools/perf/command-list.txt

@@ -4,6 +4,7 @@
 #
 perf-annotate			mainporcelain common
 perf-bench			mainporcelain common
+perf-buildid-list		mainporcelain common
 perf-list			mainporcelain common
 perf-sched			mainporcelain common
 perf-record			mainporcelain common

trunk/tools/perf/perf.c

@@ -287,6 +287,7 @@ static void handle_internal_command(int argc, const char **argv)
 	static struct cmd_struct commands[] = {
 		{ "help", cmd_help, 0 },
 		{ "list", cmd_list, 0 },
+		{ "buildid-list", cmd_buildid_list, 0 },
 		{ "record", cmd_record, 0 },
 		{ "report", cmd_report, 0 },
 		{ "bench", cmd_bench, 0 },