From a89e5abe3efcc7facc666d3985769278937f86b0 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo Date: Thu, 7 Jan 2010 19:59:39 -0200 Subject: [PATCH] perf symbols: Record the domain of DSOs in HEADER_BUILD_ID header table MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit So that we can restore them to the right DSO list (either dsos__kernel or dsos__user). We do that just like the kernel does for the other events, encoding PERF_RECORD_MISC_{KERNEL,USER} in perf_event_header. Signed-off-by: Arnaldo Carvalho de Melo Cc: Frédéric Weisbecker Cc: Mike Galbraith Cc: Peter Zijlstra Cc: Paul Mackerras LKML-Reference: <1262901583-8074-2-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar --- tools/perf/util/header.c | 9 ++++++--- tools/perf/util/session.c | 6 +++++- tools/perf/util/symbol.c | 6 +++--- tools/perf/util/symbol.h | 11 +++++++++-- 4 files changed, 23 insertions(+), 9 deletions(-) diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c index 942f7da8bf84..ec96321eb9e4 100644 --- a/tools/perf/util/header.c +++ b/tools/perf/util/header.c @@ -193,7 +193,7 @@ static int write_padded(int fd, const void *bf, size_t count, continue; \ else -static int __dsos__write_buildid_table(struct list_head *head, int fd) +static int __dsos__write_buildid_table(struct list_head *head, u16 misc, int fd) { struct dso *pos; @@ -205,6 +205,7 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd) len = ALIGN(len, NAME_ALIGN); memset(&b, 0, sizeof(b)); memcpy(&b.build_id, pos->build_id, sizeof(pos->build_id)); + b.header.misc = misc; b.header.size = sizeof(b) + len; err = do_write(fd, &b, sizeof(b)); if (err < 0) @@ -220,9 +221,11 @@ static int __dsos__write_buildid_table(struct list_head *head, int fd) static int dsos__write_buildid_table(int fd) { - int err = __dsos__write_buildid_table(&dsos__kernel, fd); + int err = __dsos__write_buildid_table(&dsos__kernel, + PERF_RECORD_MISC_KERNEL, fd); if (err == 0) - err = __dsos__write_buildid_table(&dsos__user, fd); + err = __dsos__write_buildid_table(&dsos__user, + PERF_RECORD_MISC_USER, fd); return err; } diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index e0e6a075489e..378ac5422bcf 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -255,6 +255,7 @@ int perf_header__read_build_ids(int input, u64 offset, u64 size) while (offset < limit) { struct dso *dso; ssize_t len; + struct list_head *head = &dsos__user; if (read(input, &bev, sizeof(bev)) != sizeof(bev)) goto out; @@ -263,7 +264,10 @@ int perf_header__read_build_ids(int input, u64 offset, u64 size) if (read(input, filename, len) != len) goto out; - dso = dsos__findnew(filename); + if (bev.header.misc & PERF_RECORD_MISC_KERNEL) + head = &dsos__kernel; + + dso = __dsos__findnew(head, filename); if (dso != NULL) dso__set_build_id(dso, &bev.build_id); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index da2f07f1af8f..8e6627e6b778 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1615,14 +1615,14 @@ static struct dso *dsos__find(struct list_head *head, const char *name) return NULL; } -struct dso *dsos__findnew(const char *name) +struct dso *__dsos__findnew(struct list_head *head, const char *name) { - struct dso *dso = dsos__find(&dsos__user, name); + struct dso *dso = dsos__find(head, name); if (!dso) { dso = dso__new(name); if (dso != NULL) { - dsos__add(&dsos__user, dso); + dsos__add(head, dso); dso__set_basename(dso); } } diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index b2b5330a82a0..ee0b4593db7b 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -115,9 +115,17 @@ bool dso__sorted_by_name(const struct dso *self, enum map_type type); void dso__sort_by_name(struct dso *self, enum map_type type); +extern struct list_head dsos__user, dsos__kernel; + +struct dso *__dsos__findnew(struct list_head *head, const char *name); + +static inline struct dso *dsos__findnew(const char *name) +{ + return __dsos__findnew(&dsos__user, name); +} + struct perf_session; -struct dso *dsos__findnew(const char *name); int dso__load(struct dso *self, struct map *map, struct perf_session *session, symbol_filter_t filter); void dsos__fprintf(FILE *fp); @@ -143,6 +151,5 @@ bool symbol_type__is_a(char symbol_type, enum map_type map_type); int perf_session__create_kernel_maps(struct perf_session *self); -extern struct list_head dsos__user, dsos__kernel; extern struct dso *vdso; #endif /* __PERF_SYMBOL */ -- GitLab