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910070454e
Based on 1 normalized pattern(s): released under the gpl v2 and only v2 not any later version extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 12 file(s). Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Steve Winslow <swinslow@gmail.com> Reviewed-by: Alexios Zavras <alexios.zavras@intel.com> Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Allison Randal <allison@lohutok.net> Cc: linux-spdx@vger.kernel.org Link: https://lkml.kernel.org/r/20190529141332.526460839@linutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
69 lines
1.7 KiB
C
69 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* builtin-kallsyms.c
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*
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* Builtin command: Look for a symbol in the running kernel and its modules
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*
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* Copyright (C) 2017, Red Hat Inc, Arnaldo Carvalho de Melo <acme@redhat.com>
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*/
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#include <inttypes.h>
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#include "builtin.h"
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#include <linux/compiler.h>
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#include <subcmd/parse-options.h>
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#include "debug.h"
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#include "machine.h"
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#include "map.h"
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#include "symbol.h"
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static int __cmd_kallsyms(int argc, const char **argv)
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{
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int i;
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struct machine *machine = machine__new_kallsyms();
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if (machine == NULL) {
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pr_err("Couldn't read /proc/kallsyms\n");
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return -1;
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}
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for (i = 0; i < argc; ++i) {
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struct map *map;
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struct symbol *symbol = machine__find_kernel_symbol_by_name(machine, argv[i], &map);
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if (symbol == NULL) {
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printf("%s: not found\n", argv[i]);
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continue;
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}
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printf("%s: %s %s %#" PRIx64 "-%#" PRIx64 " (%#" PRIx64 "-%#" PRIx64")\n",
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symbol->name, map->dso->short_name, map->dso->long_name,
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map->unmap_ip(map, symbol->start), map->unmap_ip(map, symbol->end),
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symbol->start, symbol->end);
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}
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machine__delete(machine);
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return 0;
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}
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int cmd_kallsyms(int argc, const char **argv)
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{
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const struct option options[] = {
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OPT_INCR('v', "verbose", &verbose, "be more verbose (show counter open errors, etc)"),
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OPT_END()
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};
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const char * const kallsyms_usage[] = {
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"perf kallsyms [<options>] symbol_name",
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NULL
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};
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argc = parse_options(argc, argv, options, kallsyms_usage, 0);
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if (argc < 1)
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usage_with_options(kallsyms_usage, options);
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symbol_conf.sort_by_name = true;
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symbol_conf.try_vmlinux_path = (symbol_conf.vmlinux_name == NULL);
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if (symbol__init(NULL) < 0)
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return -1;
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return __cmd_kallsyms(argc, argv);
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}
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