diff options
author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-19 16:41:23 (GMT) |
---|---|---|
committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2010-05-19 16:45:08 (GMT) |
commit | f869097e884d8cb65b2bb7831ca57b7dffb66fdd (patch) | |
tree | 4a12562d3121571b19d877b5ed2a1749caf1354e /tools/perf | |
parent | f6e1467d8303a397ce40bcfb5f72f97d3ebc768f (diff) | |
download | linux-f869097e884d8cb65b2bb7831ca57b7dffb66fdd.tar.xz |
perf session: Make read_build_id routines look at the host_machine too
The changes made to support host and guest machines in a session, that
started when the 'perf kvm' tool was introduced ended up introducing a
bug where the host_machine was not having its DSOs traversed for
build-id processing.
Fix it by moving some methods to the right classes and considering the
host_machine when processing build-ids.
Reported-by: Tom Zanussi <tzanussi@gmail.com>
Reported-by: Stephane Eranian <eranian@google.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
Cc: Tom Zanussi <tzanussi@gmail.com>
LKML-Reference: <new-submission>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools/perf')
-rw-r--r-- | tools/perf/util/header.c | 84 | ||||
-rw-r--r-- | tools/perf/util/session.c | 7 | ||||
-rw-r--r-- | tools/perf/util/session.h | 8 | ||||
-rw-r--r-- | tools/perf/util/symbol.c | 9 | ||||
-rw-r--r-- | tools/perf/util/symbol.h | 1 |
5 files changed, 69 insertions, 40 deletions
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 8847bec..1f62435 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -221,29 +221,38 @@ static int __dsos__write_buildid_table(struct list_head *head, pid_t pid, return 0; } +static int machine__write_buildid_table(struct machine *self, int fd) +{ + int err; + u16 kmisc = PERF_RECORD_MISC_KERNEL, + umisc = PERF_RECORD_MISC_USER; + + if (!machine__is_host(self)) { + kmisc = PERF_RECORD_MISC_GUEST_KERNEL; + umisc = PERF_RECORD_MISC_GUEST_USER; + } + + err = __dsos__write_buildid_table(&self->kernel_dsos, self->pid, + kmisc, fd); + if (err == 0) + err = __dsos__write_buildid_table(&self->user_dsos, + self->pid, umisc, fd); + return err; +} + static int dsos__write_buildid_table(struct perf_header *header, int fd) { struct perf_session *session = container_of(header, struct perf_session, header); struct rb_node *nd; - int err = 0; - u16 kmisc, umisc; + int err = machine__write_buildid_table(&session->host_machine, fd); + + if (err) + return err; for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); - if (machine__is_host(pos)) { - kmisc = PERF_RECORD_MISC_KERNEL; - umisc = PERF_RECORD_MISC_USER; - } else { - kmisc = PERF_RECORD_MISC_GUEST_KERNEL; - umisc = PERF_RECORD_MISC_GUEST_USER; - } - - err = __dsos__write_buildid_table(&pos->kernel_dsos, pos->pid, - kmisc, fd); - if (err == 0) - err = __dsos__write_buildid_table(&pos->user_dsos, - pos->pid, umisc, fd); + err = machine__write_buildid_table(pos, fd); if (err) break; } @@ -363,12 +372,17 @@ static int __dsos__cache_build_ids(struct list_head *head, const char *debugdir) return err; } -static int dsos__cache_build_ids(struct perf_header *self) +static int machine__cache_build_ids(struct machine *self, const char *debugdir) +{ + int ret = __dsos__cache_build_ids(&self->kernel_dsos, debugdir); + ret |= __dsos__cache_build_ids(&self->user_dsos, debugdir); + return ret; +} + +static int perf_session__cache_build_ids(struct perf_session *self) { - struct perf_session *session = container_of(self, - struct perf_session, header); struct rb_node *nd; - int ret = 0; + int ret; char debugdir[PATH_MAX]; snprintf(debugdir, sizeof(debugdir), "%s/%s", getenv("HOME"), @@ -377,25 +391,30 @@ static int dsos__cache_build_ids(struct perf_header *self) if (mkdir(debugdir, 0755) != 0 && errno != EEXIST) return -1; - for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { + ret = machine__cache_build_ids(&self->host_machine, debugdir); + + for (nd = rb_first(&self->machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); - ret |= __dsos__cache_build_ids(&pos->kernel_dsos, debugdir); - ret |= __dsos__cache_build_ids(&pos->user_dsos, debugdir); + ret |= machine__cache_build_ids(pos, debugdir); } return ret ? -1 : 0; } -static bool dsos__read_build_ids(struct perf_header *self, bool with_hits) +static bool machine__read_build_ids(struct machine *self, bool with_hits) +{ + bool ret = __dsos__read_build_ids(&self->kernel_dsos, with_hits); + ret |= __dsos__read_build_ids(&self->user_dsos, with_hits); + return ret; +} + +static bool perf_session__read_build_ids(struct perf_session *self, bool with_hits) { - bool ret = false; - struct perf_session *session = container_of(self, - struct perf_session, header); struct rb_node *nd; + bool ret = machine__read_build_ids(&self->host_machine, with_hits); - for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) { + for (nd = rb_first(&self->machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); - ret |= __dsos__read_build_ids(&pos->kernel_dsos, with_hits); - ret |= __dsos__read_build_ids(&pos->user_dsos, with_hits); + ret |= machine__read_build_ids(pos, with_hits); } return ret; @@ -404,12 +423,14 @@ static bool dsos__read_build_ids(struct perf_header *self, bool with_hits) static int perf_header__adds_write(struct perf_header *self, int fd) { int nr_sections; + struct perf_session *session; struct perf_file_section *feat_sec; int sec_size; u64 sec_start; int idx = 0, err; - if (dsos__read_build_ids(self, true)) + session = container_of(self, struct perf_session, header); + if (perf_session__read_build_ids(session, true)) perf_header__set_feat(self, HEADER_BUILD_ID); nr_sections = bitmap_weight(self->adds_features, HEADER_FEAT_BITS); @@ -450,7 +471,7 @@ static int perf_header__adds_write(struct perf_header *self, int fd) } buildid_sec->size = lseek(fd, 0, SEEK_CUR) - buildid_sec->offset; - dsos__cache_build_ids(self); + perf_session__cache_build_ids(session); } lseek(fd, sec_start, SEEK_SET); @@ -490,7 +511,6 @@ int perf_header__write(struct perf_header *self, int fd, bool at_exit) lseek(fd, sizeof(f_header), SEEK_SET); - for (i = 0; i < self->attrs; i++) { attr = self->attr[i]; diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index e4eaa6d..8f83a18 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -895,3 +895,10 @@ size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp) __dsos__fprintf(&self->host_machine.user_dsos, fp) + machines__fprintf_dsos(&self->machines, fp); } + +size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, + bool with_hits) +{ + size_t ret = machine__fprintf_dsos_buildid(&self->host_machine, fp, with_hits); + return ret + machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); +} diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index e7fce48..55c6881 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -132,12 +132,8 @@ void perf_session__process_machines(struct perf_session *self, size_t perf_session__fprintf_dsos(struct perf_session *self, FILE *fp); -static inline -size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, FILE *fp, - bool with_hits) -{ - return machines__fprintf_dsos_buildid(&self->machines, fp, with_hits); -} +size_t perf_session__fprintf_dsos_buildid(struct perf_session *self, + FILE *fp, bool with_hits); static inline size_t perf_session__fprintf_nr_events(struct perf_session *self, FILE *fp) diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 87d9b1b..96bff0e 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1937,6 +1937,12 @@ static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, return ret; } +size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits) +{ + return __dsos__fprintf_buildid(&self->kernel_dsos, fp, with_hits) + + __dsos__fprintf_buildid(&self->user_dsos, fp, with_hits); +} + size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits) { struct rb_node *nd; @@ -1944,8 +1950,7 @@ size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_ for (nd = rb_first(self); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); - ret += __dsos__fprintf_buildid(&pos->kernel_dsos, fp, with_hits); - ret += __dsos__fprintf_buildid(&pos->user_dsos, fp, with_hits); + ret += machine__fprintf_dsos_buildid(pos, fp, with_hits); } return ret; } diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 032469e..5d25b5e 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -170,6 +170,7 @@ int machine__load_vmlinux_path(struct machine *self, enum map_type type, size_t __dsos__fprintf(struct list_head *head, FILE *fp); +size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits); size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); |