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perf data: Add global path holder

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Add a 'path' member to 'struct perf_data'. It will keep the configured
path for the data (const char *). The path in struct perf_data_file is
now dynamically allocated (duped) from it.

This scheme is useful/used in following patches where struct
perf_data::path holds the 'configure' directory path and struct
perf_data_file::path holds the allocated path for specific files.

Also it actually makes the code little simpler.

Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/r/20190221094145.9151-3-jolsa@kernel.org
[ Fixup data-convert-bt.c missing conversion ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Jiri Olsa 2019-02-21 10:41:30 +01:00 committed by Arnaldo Carvalho de Melo
parent 45112e89a8
commit 2d4f27999b
21 changed files with 87 additions and 93 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
tools/perf/builtin-annotate.c
View File

@ -441,7 +441,7 @@ static int __cmd_annotate(struct perf_annotate *ann)
}
if (total_nr_samples == 0) {
ui__error("The %s file has no samples!\n", session->data->file.path);
ui__error("The %s data has no samples!\n", session->data->path);
goto out;
}
@ -578,7 +578,7 @@ int cmd_annotate(int argc, const char **argv)
if (quiet)
perf_quiet_option();
data.file.path = input_name;
data.path = input_name;
annotate.session = perf_session__new(&data, false, &annotate.tool);
if (annotate.session == NULL)

4
tools/perf/builtin-buildid-cache.c
View File

@ -416,8 +416,8 @@ int cmd_buildid_cache(int argc, const char **argv)
nsi = nsinfo__new(ns_id);
if (missing_filename) {
data.file.path = missing_filename;
data.force = force;
data.path = missing_filename;
data.force = force;
session = perf_session__new(&data, false, NULL);
if (session == NULL)

8
tools/perf/builtin-buildid-list.c
View File

@ -52,11 +52,9 @@ static int perf_session__list_build_ids(bool force, bool with_hits)
{
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
symbol__elf_init();

4
tools/perf/builtin-c2c.c
View File

@ -2750,8 +2750,8 @@ static int perf_c2c__report(int argc, const char **argv)
if (!input_name || !strlen(input_name))
input_name = "perf.data";
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
err = setup_display(display);
if (err)

12
tools/perf/builtin-diff.c
View File

@ -708,7 +708,7 @@ static void data__fprintf(void)
data__for_each_file(i, d)
fprintf(stdout, "# [%d] %s %s\n",
d->idx, d->data.file.path,
d->idx, d->data.path,
!d->idx ? "(Baseline)" : "");
fprintf(stdout, "#\n");
@ -779,14 +779,14 @@ static int __cmd_diff(void)
data__for_each_file(i, d) {
d->session = perf_session__new(&d->data, false, &tool);
if (!d->session) {
pr_err("Failed to open %s\n", d->data.file.path);
pr_err("Failed to open %s\n", d->data.path);
ret = -1;
goto out_delete;
}
ret = perf_session__process_events(d->session);
if (ret) {
pr_err("Failed to process %s\n", d->data.file.path);
pr_err("Failed to process %s\n", d->data.path);
goto out_delete;
}
@ -1289,9 +1289,9 @@ static int data_init(int argc, const char **argv)
data__for_each_file(i, d) {
struct perf_data *data = &d->data;
data->file.path = use_default ? defaults[i] : argv[i];
data->mode = PERF_DATA_MODE_READ,
data->force = force,
data->path = use_default ? defaults[i] : argv[i];
data->mode = PERF_DATA_MODE_READ,
data->force = force,
d->idx = i;
}

4
tools/perf/builtin-evlist.c
View File

@ -23,9 +23,7 @@ static int __cmd_evlist(const char *file_name, struct perf_attr_details *details
struct perf_session *session;
struct perf_evsel *pos;
struct perf_data data = {
.file = {
.path = file_name,
},
.path = file_name,
.mode = PERF_DATA_MODE_READ,
.force = details->force,
};

10
tools/perf/builtin-inject.c
View File

@ -770,10 +770,8 @@ int cmd_inject(int argc, const char **argv)
.input_name = "-",
.samples = LIST_HEAD_INIT(inject.samples),
.output = {
.file = {
.path = "-",
},
.mode = PERF_DATA_MODE_WRITE,
.path = "-",
.mode = PERF_DATA_MODE_WRITE,
},
};
struct perf_data data = {
@ -786,7 +784,7 @@ int cmd_inject(int argc, const char **argv)
"Inject build-ids into the output stream"),
OPT_STRING('i', "input", &inject.input_name, "file",
"input file name"),
OPT_STRING('o', "output", &inject.output.file.path, "file",
OPT_STRING('o', "output", &inject.output.path, "file",
"output file name"),
OPT_BOOLEAN('s', "sched-stat", &inject.sched_stat,
"Merge sched-stat and sched-switch for getting events "
@ -834,7 +832,7 @@ int cmd_inject(int argc, const char **argv)
inject.tool.ordered_events = inject.sched_stat;
data.file.path = inject.input_name;
data.path = inject.input_name;
inject.session = perf_session__new(&data, true, &inject.tool);
if (inject.session == NULL)
return -1;

2
tools/perf/builtin-kmem.c
View File

@ -1949,7 +1949,7 @@ int cmd_kmem(int argc, const char **argv)
return __cmd_record(argc, argv);
}
data.file.path = input_name;
data.path = input_name;
kmem_session = session = perf_session__new(&data, false, &perf_kmem);
if (session == NULL)

8
tools/perf/builtin-kvm.c
View File

@ -1080,11 +1080,9 @@ static int read_events(struct perf_kvm_stat *kvm)
.ordered_events = true,
};
struct perf_data file = {
.file = {
.path = kvm->file_name,
},
.mode = PERF_DATA_MODE_READ,
.force = kvm->force,
.path = kvm->file_name,
.mode = PERF_DATA_MODE_READ,
.force = kvm->force,
};
kvm->tool = eops;

8
tools/perf/builtin-lock.c
View File

@ -866,11 +866,9 @@ static int __cmd_report(bool display_info)
.ordered_events = true,
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = force,
};
session = perf_session__new(&data, false, &eops);

8
tools/perf/builtin-mem.c
View File

@ -239,11 +239,9 @@ static int process_sample_event(struct perf_tool *tool,
static int report_raw_events(struct perf_mem *mem)
{
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = mem->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = mem->force,
};
int ret;
struct perf_session *session = perf_session__new(&data, false,

6
tools/perf/builtin-record.c
View File

@ -918,7 +918,7 @@ record__switch_output(struct record *rec, bool at_exit)
if (!quiet)
fprintf(stderr, "[ perf record: Dump %s.%s ]\n",
data->file.path, timestamp);
data->path, timestamp);
/* Output tracking events */
if (!at_exit) {
@ -1461,7 +1461,7 @@ out_child:
fprintf(stderr, "[ perf record: Captured and wrote %.3f MB %s%s%s ]\n",
perf_data__size(data) / 1024.0 / 1024.0,
data->file.path, postfix, samples);
data->path, postfix, samples);
}
out_delete_session:
@ -1862,7 +1862,7 @@ static struct option __record_options[] = {
OPT_STRING('C', "cpu", &record.opts.target.cpu_list, "cpu",
"list of cpus to monitor"),
OPT_U64('c', "count", &record.opts.user_interval, "event period to sample"),
OPT_STRING('o', "output", &record.data.file.path, "file",
OPT_STRING('o', "output", &record.data.path, "file",
"output file name"),
OPT_BOOLEAN_SET('i', "no-inherit", &record.opts.no_inherit,
&record.opts.no_inherit_set,

6
tools/perf/builtin-report.c
View File

@ -899,7 +899,7 @@ static int __cmd_report(struct report *rep)
rep->nr_entries += evsel__hists(pos)->nr_entries;
if (rep->nr_entries == 0) {
ui__error("The %s file has no samples!\n", data->file.path);
ui__error("The %s data has no samples!\n", data->path);
return 0;
}
@ -1207,8 +1207,8 @@ int cmd_report(int argc, const char **argv)
input_name = "perf.data";
}
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
repeat:
session = perf_session__new(&data, false, &report.tool);

16
tools/perf/builtin-sched.c
View File

@ -1785,11 +1785,9 @@ static int perf_sched__read_events(struct perf_sched *sched)
};
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
};
int rc = -1;
@ -2958,11 +2956,9 @@ static int perf_sched__timehist(struct perf_sched *sched)
{ "sched:sched_migrate_task", timehist_migrate_task_event, },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = sched->force,
};
struct perf_session *session;

12
tools/perf/builtin-script.c
View File

@ -2951,10 +2951,8 @@ int find_scripts(char **scripts_array, char **scripts_path_array)
DIR *scripts_dir, *lang_dir;
struct perf_session *session;
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
};
char *temp;
int i = 0;
@ -3427,8 +3425,8 @@ int cmd_script(int argc, const char **argv)
argc = parse_options_subcommand(argc, argv, options, script_subcommands, script_usage,
PARSE_OPT_STOP_AT_NON_OPTION);
data.file.path = input_name;
data.force = symbol_conf.force;
data.path = input_name;
data.force = symbol_conf.force;
if (argc > 1 && !strncmp(argv[0], "rec", strlen("rec"))) {
rec_script_path = get_script_path(argv[1], RECORD_SUFFIX);
@ -3654,7 +3652,7 @@ int cmd_script(int argc, const char **argv)
goto out_delete;
}
input = open(data.file.path, O_RDONLY); /* input_name */
input = open(data.path, O_RDONLY); /* input_name */
if (input < 0) {
err = -errno;
perror("failed to open file");

6
tools/perf/builtin-stat.c
View File

@ -1322,7 +1322,7 @@ static int __cmd_record(int argc, const char **argv)
PARSE_OPT_STOP_AT_NON_OPTION);
if (output_name)
data->file.path = output_name;
data->path = output_name;
if (stat_config.run_count != 1 || forever) {
pr_err("Cannot use -r option with perf stat record.\n");
@ -1523,8 +1523,8 @@ static int __cmd_report(int argc, const char **argv)
input_name = "perf.data";
}
perf_stat.data.file.path = input_name;
perf_stat.data.mode = PERF_DATA_MODE_READ;
perf_stat.data.path = input_name;
perf_stat.data.mode = PERF_DATA_MODE_READ;
session = perf_session__new(&perf_stat.data, false, &perf_stat.tool);
if (session == NULL)

8
tools/perf/builtin-timechart.c
View File

@ -1602,11 +1602,9 @@ static int __cmd_timechart(struct timechart *tchart, const char *output_name)
{ "syscalls:sys_exit_select", process_exit_poll },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = tchart->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = tchart->force,
};
struct perf_session *session = perf_session__new(&data, false,

8
tools/perf/builtin-trace.c
View File

@ -3154,11 +3154,9 @@ static int trace__replay(struct trace *trace)
{ "probe:vfs_getname", trace__vfs_getname, },
};
struct perf_data data = {
.file = {
.path = input_name,
},
.mode = PERF_DATA_MODE_READ,
.force = trace->force,
.path = input_name,
.mode = PERF_DATA_MODE_READ,
.force = trace->force,
};
struct perf_session *session;
struct perf_evsel *evsel;

4
tools/perf/util/data-convert-bt.c
View File

@ -1578,7 +1578,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
{
struct perf_session *session;
struct perf_data data = {
.file = { .path = input, .fd = -1 },
.path = input,
.mode = PERF_DATA_MODE_READ,
.force = opts->force,
};
@ -1650,7 +1650,7 @@ int bt_convert__perf2ctf(const char *input, const char *path,
fprintf(stderr,
"[ perf data convert: Converted '%s' into CTF data '%s' ]\n",
data.file.path, path);
data.path, path);
fprintf(stderr,
"[ perf data convert: Converted and wrote %.3f MB (%" PRIu64 " samples",

39
tools/perf/util/data.c
View File

@ -19,11 +19,11 @@ static bool check_pipe(struct perf_data *data)
int fd = perf_data__is_read(data) ?
STDIN_FILENO : STDOUT_FILENO;
if (!data->file.path) {
if (!data->path) {
if (!fstat(fd, &st) && S_ISFIFO(st.st_mode))
is_pipe = true;
} else {
if (!strcmp(data->file.path, "-"))
if (!strcmp(data->path, "-"))
is_pipe = true;
}
@ -37,13 +37,13 @@ static int check_backup(struct perf_data *data)
{
struct stat st;
if (!stat(data->file.path, &st) && st.st_size) {
if (!stat(data->path, &st) && st.st_size) {
/* TODO check errors properly */
char oldname[PATH_MAX];
snprintf(oldname, sizeof(oldname), "%s.old",
data->file.path);
data->path);
unlink(oldname);
rename(data->file.path, oldname);
rename(data->path, oldname);
}
return 0;
@ -115,8 +115,22 @@ static int open_file(struct perf_data *data)
fd = perf_data__is_read(data) ?
open_file_read(data) : open_file_write(data);
if (fd < 0) {
free(data->file.path);
return -1;
}
data->file.fd = fd;
return fd < 0 ? -1 : 0;
return 0;
}
static int open_file_dup(struct perf_data *data)
{
data->file.path = strdup(data->path);
if (!data->file.path)
return -ENOMEM;
return open_file(data);
}
int perf_data__open(struct perf_data *data)
@ -124,14 +138,15 @@ int perf_data__open(struct perf_data *data)
if (check_pipe(data))
return 0;
if (!data->file.path)
data->file.path = "perf.data";
if (!data->path)
data->path = "perf.data";
return open_file(data);
return open_file_dup(data);
}
void perf_data__close(struct perf_data *data)
{
free(data->file.path);
close(data->file.fd);
}
@ -159,15 +174,15 @@ int perf_data__switch(struct perf_data *data,
if (perf_data__is_read(data))
return -EINVAL;
if (asprintf(&new_filepath, "%s.%s", data->file.path, postfix) < 0)
if (asprintf(&new_filepath, "%s.%s", data->path, postfix) < 0)
return -ENOMEM;
/*
* Only fire a warning, don't return error, continue fill
* original file.
*/
if (rename(data->file.path, new_filepath))
pr_warning("Failed to rename %s to %s\n", data->file.path, new_filepath);
if (rename(data->path, new_filepath))
pr_warning("Failed to rename %s to %s\n", data->path, new_filepath);
if (!at_exit) {
close(data->file.fd);

3
tools/perf/util/data.h
View File

@ -10,12 +10,13 @@ enum perf_data_mode {
};
struct perf_data_file {
const char *path;
char *path;
int fd;
unsigned long size;
};
struct perf_data {
const char *path;
struct perf_data_file file;
bool is_pipe;
bool force;