diff options
| author | Arnaldo Carvalho de Melo <acme@redhat.com> | 2009-12-14 14:22:59 -0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-12-14 17:34:55 +0100 |
| commit | a328626b61aeda1a7d00a80c475c76ca1b815e0d (patch) | |
| tree | 784f964c8c8950d58bccccaf3802a5a20efb4672 /tools/perf/util | |
| parent | 4e4f06e4c8f17ea96f7dd76251cab99511026401 (diff) | |
perf session: Adopt resolve_callchain
This is really a generic library routine, so declutter
builtin-report.c a bit by moving it to the library.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
LKML-Reference: <1260807780-19377-1-git-send-email-acme@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'tools/perf/util')
| -rw-r--r-- | tools/perf/util/session.c | 59 | ||||
| -rw-r--r-- | tools/perf/util/session.h | 7 |
2 files changed, 66 insertions, 0 deletions
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index fe87a2f2e5a5..ecd54bedfb1c 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -4,6 +4,7 @@ #include <sys/types.h> #include "session.h" +#include "sort.h" #include "util.h" static int perf_session__open(struct perf_session *self, bool force) @@ -90,3 +91,61 @@ void perf_session__delete(struct perf_session *self) free(self->cwd); free(self); } + +static bool symbol__match_parent_regex(struct symbol *sym) +{ + if (sym->name && !regexec(&parent_regex, sym->name, 0, NULL, 0)) + return 1; + + return 0; +} + +struct symbol **perf_session__resolve_callchain(struct perf_session *self, + struct thread *thread, + struct ip_callchain *chain, + struct symbol **parent) +{ + u8 cpumode = PERF_RECORD_MISC_USER; + struct symbol **syms = NULL; + unsigned int i; + + if (self->use_callchain) { + syms = calloc(chain->nr, sizeof(*syms)); + if (!syms) { + fprintf(stderr, "Can't allocate memory for symbols\n"); + exit(-1); + } + } + + for (i = 0; i < chain->nr; i++) { + u64 ip = chain->ips[i]; + struct addr_location al; + + if (ip >= PERF_CONTEXT_MAX) { + switch (ip) { + case PERF_CONTEXT_HV: + cpumode = PERF_RECORD_MISC_HYPERVISOR; break; + case PERF_CONTEXT_KERNEL: + cpumode = PERF_RECORD_MISC_KERNEL; break; + case PERF_CONTEXT_USER: + cpumode = PERF_RECORD_MISC_USER; break; + default: + break; + } + continue; + } + + thread__find_addr_location(thread, self, cpumode, + MAP__FUNCTION, ip, &al, NULL); + if (al.sym != NULL) { + if (sort__has_parent && !*parent && + symbol__match_parent_regex(al.sym)) + *parent = al.sym; + if (!self->use_callchain) + break; + syms[i] = al.sym; + } + } + + return syms; +} diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 759d96022a39..a8f3a49ca43a 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -6,7 +6,9 @@ #include "thread.h" #include <linux/rbtree.h> +struct ip_callchain; struct thread; +struct symbol; struct symbol_conf; struct perf_session { @@ -50,6 +52,11 @@ void perf_session__delete(struct perf_session *self); int perf_session__process_events(struct perf_session *self, struct perf_event_ops *event_ops); +struct symbol **perf_session__resolve_callchain(struct perf_session *self, + struct thread *thread, + struct ip_callchain *chain, + struct symbol **parent); + int perf_header__read_build_ids(int input, u64 offset, u64 file_size); #endif /* __PERF_SESSION_H */ |