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perf record: Intercept all events
The event interception we need to do in 'perf record' to create a list of all DSOs in PERF_RECORD_MMAP events wasn't seeing all events, make sure that happens by checking size agains event_t->header.size. 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: <1263586107-1756-1-git-send-email-acme@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>
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1 changed files with 18 additions and 10 deletions
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@ -113,16 +113,24 @@ static void write_output(void *buf, size_t size)
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static void write_event(event_t *buf, size_t size)
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{
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/*
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* Add it to the list of DSOs, so that when we finish this
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* record session we can pick the available build-ids.
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*/
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if (buf->header.type == PERF_RECORD_MMAP) {
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struct list_head *head = &dsos__user;
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if (buf->mmap.header.misc == 1)
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head = &dsos__kernel;
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__dsos__findnew(head, buf->mmap.filename);
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}
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size_t processed_size = buf->header.size;
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event_t *ev = buf;
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do {
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/*
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* Add it to the list of DSOs, so that when we finish this
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* record session we can pick the available build-ids.
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*/
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if (ev->header.type == PERF_RECORD_MMAP) {
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struct list_head *head = &dsos__user;
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if (ev->header.misc == 1)
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head = &dsos__kernel;
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__dsos__findnew(head, ev->mmap.filename);
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}
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ev = ((void *)ev) + ev->header.size;
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processed_size += ev->header.size;
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} while (processed_size < size);
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write_output(buf, size);
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}
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