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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/tools/perf/builtin-buildid-list.c | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
Add the rt linux 4.1.3-rt3 as base
Import the rt linux 4.1.3-rt3 as OPNFV kvm base.
It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:
commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.
Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/tools/perf/builtin-buildid-list.c')
-rw-r--r-- | kernel/tools/perf/builtin-buildid-list.c | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/kernel/tools/perf/builtin-buildid-list.c b/kernel/tools/perf/builtin-buildid-list.c new file mode 100644 index 000000000..feb420f74 --- /dev/null +++ b/kernel/tools/perf/builtin-buildid-list.c @@ -0,0 +1,111 @@ +/* + * builtin-buildid-list.c + * + * Builtin buildid-list command: list buildids in perf.data, in the running + * kernel and in ELF files. + * + * Copyright (C) 2009, Red Hat Inc. + * Copyright (C) 2009, Arnaldo Carvalho de Melo <acme@redhat.com> + */ +#include "builtin.h" +#include "perf.h" +#include "util/build-id.h" +#include "util/cache.h" +#include "util/debug.h" +#include "util/parse-options.h" +#include "util/session.h" +#include "util/symbol.h" +#include "util/data.h" + +static int sysfs__fprintf_build_id(FILE *fp) +{ + u8 kallsyms_build_id[BUILD_ID_SIZE]; + char sbuild_id[BUILD_ID_SIZE * 2 + 1]; + + if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id, + sizeof(kallsyms_build_id)) != 0) + return -1; + + build_id__sprintf(kallsyms_build_id, sizeof(kallsyms_build_id), + sbuild_id); + fprintf(fp, "%s\n", sbuild_id); + return 0; +} + +static int filename__fprintf_build_id(const char *name, FILE *fp) +{ + u8 build_id[BUILD_ID_SIZE]; + char sbuild_id[BUILD_ID_SIZE * 2 + 1]; + + if (filename__read_build_id(name, build_id, + sizeof(build_id)) != sizeof(build_id)) + return 0; + + build_id__sprintf(build_id, sizeof(build_id), sbuild_id); + return fprintf(fp, "%s\n", sbuild_id); +} + +static bool dso__skip_buildid(struct dso *dso, int with_hits) +{ + return with_hits && !dso->hit; +} + +static int perf_session__list_build_ids(bool force, bool with_hits) +{ + struct perf_session *session; + struct perf_data_file file = { + .path = input_name, + .mode = PERF_DATA_MODE_READ, + .force = force, + }; + + symbol__elf_init(); + /* + * See if this is an ELF file first: + */ + if (filename__fprintf_build_id(input_name, stdout)) + goto out; + + session = perf_session__new(&file, false, &build_id__mark_dso_hit_ops); + if (session == NULL) + return -1; + /* + * in pipe-mode, the only way to get the buildids is to parse + * the record stream. Buildids are stored as RECORD_HEADER_BUILD_ID + */ + if (with_hits || perf_data_file__is_pipe(&file)) + perf_session__process_events(session); + + perf_session__fprintf_dsos_buildid(session, stdout, dso__skip_buildid, with_hits); + perf_session__delete(session); +out: + return 0; +} + +int cmd_buildid_list(int argc, const char **argv, + const char *prefix __maybe_unused) +{ + bool show_kernel = false; + bool with_hits = false; + bool force = false; + const struct option options[] = { + OPT_BOOLEAN('H', "with-hits", &with_hits, "Show only DSOs with hits"), + OPT_STRING('i', "input", &input_name, "file", "input file name"), + OPT_BOOLEAN('f', "force", &force, "don't complain, do it"), + OPT_BOOLEAN('k', "kernel", &show_kernel, "Show current kernel build id"), + OPT_INCR('v', "verbose", &verbose, "be more verbose"), + OPT_END() + }; + const char * const buildid_list_usage[] = { + "perf buildid-list [<options>]", + NULL + }; + + argc = parse_options(argc, argv, options, buildid_list_usage, 0); + setup_pager(); + + if (show_kernel) + return sysfs__fprintf_build_id(stdout); + + return perf_session__list_build_ids(force, with_hits); +} |