diff options
| author |   Don Zickus <dzickus@redhat.com> | 2014-05-19 15:13:49 -0400 |
|---|---|---|
| committer |   Jiri Olsa <jolsa@kernel.org> | 2014-06-09 13:34:45 +0200 |
| commit | 7ef807034ef33f8afe33fa7957c73954e8e4f89c (patch) | |
| tree | e463ee2fc5566d80059985587b60d8ffcbdc5aa7 /tools/perf/util/event.c | |
| parent | perf: Pass protection and flags bits through mmap2 interface (diff) | |
| download | linux-dev-7ef807034ef33f8afe33fa7957c73954e8e4f89c.tar.xz linux-dev-7ef807034ef33f8afe33fa7957c73954e8e4f89c.zip | |
perf tools: Update mmap2 interface with protection and flag bits
The kernel piece passes more info now. Update the perf tool to reflect
that and adjust the synthesized maps to play along.
Signed-off-by: Don Zickus <dzickus@redhat.com>
Link: http://lkml.kernel.org/r/1400526833-141779-4-git-send-email-dzickus@redhat.com
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Diffstat (limited to 'tools/perf/util/event.c')
| -rw-r--r-- | tools/perf/util/event.c | 23 |
1 files changed, 21 insertions, 2 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index 65795b835b39..ce43cbae3bd5 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -1,4 +1,5 @@ #include <linux/types.h> +#include <sys/mman.h> #include "event.h" #include "debug.h" #include "hist.h" @@ -212,6 +213,21 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool, else event->header.misc = PERF_RECORD_MISC_GUEST_USER; + /* map protection and flags bits */ + event->mmap2.prot = 0; + event->mmap2.flags = 0; + if (prot[0] == 'r') + event->mmap2.prot |= PROT_READ; + if (prot[1] == 'w') + event->mmap2.prot |= PROT_WRITE; + if (prot[2] == 'x') + event->mmap2.prot |= PROT_EXEC; + + if (prot[3] == 's') + event->mmap2.flags |= MAP_SHARED; + else + event->mmap2.flags |= MAP_PRIVATE; + if (prot[2] != 'x') { if (!mmap_data || prot[0] != 'r') continue; @@ -612,12 +628,15 @@ size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp) size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp) { return fprintf(fp, " %d/%d: [%#" PRIx64 "(%#" PRIx64 ") @ %#" PRIx64 - " %02x:%02x %"PRIu64" %"PRIu64"]: %c %s\n", + " %02x:%02x %"PRIu64" %"PRIu64"]: %c%c%c%c %s\n", event->mmap2.pid, event->mmap2.tid, event->mmap2.start, event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj, event->mmap2.min, event->mmap2.ino, event->mmap2.ino_generation, - (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x', + (event->mmap2.prot & PROT_READ) ? 'r' : '-', + (event->mmap2.prot & PROT_WRITE) ? 'w' : '-', + (event->mmap2.prot & PROT_EXEC) ? 'x' : '-', + (event->mmap2.flags & MAP_SHARED) ? 's' : 'p', event->mmap2.filename); } |