linux-stable/tools/perf/builtin-kallsyms.c
Arnaldo Carvalho de Melo 4a3cec8494 perf dsos: Move the dsos struct and its methods to separate source files
So that we can reduce the header dependency tree further, in the process
noticed that lots of places were getting even things like build-id
routines and 'struct perf_tool' definition indirectly, so fix all those
too.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Link: https://lkml.kernel.org/n/tip-ti0btma9ow5ndrytyoqdk62j@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2019-08-31 22:24:10 -03:00

69 lines
1.7 KiB
C

// SPDX-License-Identifier: GPL-2.0-only
/*
* builtin-kallsyms.c
*
* Builtin command: Look for a symbol in the running kernel and its modules
*
* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
*/
#include <inttypes.h>
#include "builtin.h"
#include <linux/compiler.h>
#include <subcmd/parse-options.h>
#include "debug.h"
#include "dso.h"
#include "machine.h"
#include "map.h"
#include "symbol.h"
static int __cmd_kallsyms(int argc, const char **argv)
{
int i;
struct machine *machine = machine__new_kallsyms();
if (machine == NULL) {
pr_err("Couldn't read /proc/kallsyms\n");
return -1;
}
for (i = 0; i < argc; ++i) {
struct map *map;
struct symbol *symbol = machine__find_kernel_symbol_by_name(machine, argv[i], &map);
if (symbol == NULL) {
printf("%s: not found\n", argv[i]);
continue;
}
printf("%s: %s %s %#" PRIx64 "-%#" PRIx64 " (%#" PRIx64 "-%#" PRIx64")\n",
symbol->name, map->dso->short_name, map->dso->long_name,
map->unmap_ip(map, symbol->start), map->unmap_ip(map, symbol->end),
symbol->start, symbol->end);
}
machine__delete(machine);
return 0;
}
int cmd_kallsyms(int argc, const char **argv)
{
const struct option options[] = {
OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
OPT_END()
};
const char * const kallsyms_usage[] = {
"perf kallsyms [<options>] symbol_name",
NULL
};
argc = parse_options(argc, argv, options, kallsyms_usage, 0);
if (argc < 1)
usage_with_options(kallsyms_usage, options);
symbol_conf.sort_by_name = true;
symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
if (symbol__init(NULL) < 0)
return -1;
return __cmd_kallsyms(argc, argv);
}