mirror of
https://github.com/torvalds/linux.git
synced 2024-11-14 16:12:02 +00:00
1d037ca164
perf defines both __used and __unused variables to use for marking
unused variables. The variable __used is defined to
__attribute__((__unused__)), which contradicts the kernel definition to
__attribute__((__used__)) for new gcc versions. On Android, __used is
also defined in system headers and this leads to warnings like: warning:
'__used__' attribute ignored
__unused is not defined in the kernel and is not a standard definition.
If __unused is included everywhere instead of __used, this leads to
conflicts with glibc headers, since glibc has a variables with this name
in its headers.
The best approach is to use __maybe_unused, the definition used in the
kernel for __attribute__((unused)). In this way there is only one
definition in perf sources (instead of 2 definitions that point to the
same thing: __used and __unused) and it works on both Linux and Android.
This patch simply replaces all instances of __used and __unused with
__maybe_unused.
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Acked-by: Pekka Enberg <penberg@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com
[ committer note: fixed up conflict with a116e05 in builtin-sched.c ]
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
136 lines
2.9 KiB
C
136 lines
2.9 KiB
C
/*
|
|
* Builtin evlist command: Show the list of event selectors present
|
|
* in a perf.data file.
|
|
*/
|
|
#include "builtin.h"
|
|
|
|
#include "util/util.h"
|
|
|
|
#include <linux/list.h>
|
|
|
|
#include "perf.h"
|
|
#include "util/evlist.h"
|
|
#include "util/evsel.h"
|
|
#include "util/parse-events.h"
|
|
#include "util/parse-options.h"
|
|
#include "util/session.h"
|
|
|
|
struct perf_attr_details {
|
|
bool freq;
|
|
bool verbose;
|
|
};
|
|
|
|
static int comma_printf(bool *first, const char *fmt, ...)
|
|
{
|
|
va_list args;
|
|
int ret = 0;
|
|
|
|
if (!*first) {
|
|
ret += printf(",");
|
|
} else {
|
|
ret += printf(":");
|
|
*first = false;
|
|
}
|
|
|
|
va_start(args, fmt);
|
|
ret += vprintf(fmt, args);
|
|
va_end(args);
|
|
return ret;
|
|
}
|
|
|
|
static int __if_print(bool *first, const char *field, u64 value)
|
|
{
|
|
if (value == 0)
|
|
return 0;
|
|
|
|
return comma_printf(first, " %s: %" PRIu64, field, value);
|
|
}
|
|
|
|
#define if_print(field) __if_print(&first, #field, pos->attr.field)
|
|
|
|
static int __cmd_evlist(const char *input_name, struct perf_attr_details *details)
|
|
{
|
|
struct perf_session *session;
|
|
struct perf_evsel *pos;
|
|
|
|
session = perf_session__new(input_name, O_RDONLY, 0, false, NULL);
|
|
if (session == NULL)
|
|
return -ENOMEM;
|
|
|
|
list_for_each_entry(pos, &session->evlist->entries, node) {
|
|
bool first = true;
|
|
|
|
printf("%s", perf_evsel__name(pos));
|
|
|
|
if (details->verbose || details->freq) {
|
|
comma_printf(&first, " sample_freq=%" PRIu64,
|
|
(u64)pos->attr.sample_freq);
|
|
}
|
|
|
|
if (details->verbose) {
|
|
if_print(type);
|
|
if_print(config);
|
|
if_print(config1);
|
|
if_print(config2);
|
|
if_print(size);
|
|
if_print(sample_type);
|
|
if_print(read_format);
|
|
if_print(disabled);
|
|
if_print(inherit);
|
|
if_print(pinned);
|
|
if_print(exclusive);
|
|
if_print(exclude_user);
|
|
if_print(exclude_kernel);
|
|
if_print(exclude_hv);
|
|
if_print(exclude_idle);
|
|
if_print(mmap);
|
|
if_print(comm);
|
|
if_print(freq);
|
|
if_print(inherit_stat);
|
|
if_print(enable_on_exec);
|
|
if_print(task);
|
|
if_print(watermark);
|
|
if_print(precise_ip);
|
|
if_print(mmap_data);
|
|
if_print(sample_id_all);
|
|
if_print(exclude_host);
|
|
if_print(exclude_guest);
|
|
if_print(__reserved_1);
|
|
if_print(wakeup_events);
|
|
if_print(bp_type);
|
|
if_print(branch_sample_type);
|
|
}
|
|
|
|
putchar('\n');
|
|
}
|
|
|
|
perf_session__delete(session);
|
|
return 0;
|
|
}
|
|
|
|
static const char * const evlist_usage[] = {
|
|
"perf evlist [<options>]",
|
|
NULL
|
|
};
|
|
|
|
int cmd_evlist(int argc, const char **argv, const char *prefix __maybe_unused)
|
|
{
|
|
struct perf_attr_details details = { .verbose = false, };
|
|
const char *input_name = NULL;
|
|
const struct option options[] = {
|
|
OPT_STRING('i', "input", &input_name, "file",
|
|
"Input file name"),
|
|
OPT_BOOLEAN('F', "freq", &details.freq,
|
|
"Show the sample frequency"),
|
|
OPT_BOOLEAN('v', "verbose", &details.verbose,
|
|
"Show all event attr details"),
|
|
OPT_END()
|
|
};
|
|
|
|
argc = parse_options(argc, argv, options, evlist_usage, 0);
|
|
if (argc)
|
|
usage_with_options(evlist_usage, options);
|
|
|
|
return __cmd_evlist(input_name, &details);
|
|
}
|