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    Subject[patch 2/5] perf_counter: Synthesize VDSO mmap event
    perf record synthesizes mmap events for the running process. Right now
    it just catches file mappings, but we can check for the vdso symbol
    and add that too.

    Signed-off-by: Anton Blanchard <anton@samba.org>
    ---

    Only tested on PowerPC, but I assume x86 has the same issue.

    Index: linux.trees.git/tools/perf/builtin-record.c
    ===================================================================
    --- linux.trees.git.orig/tools/perf/builtin-record.c 2009-07-13 12:33:49.000000000 +1000
    +++ linux.trees.git/tools/perf/builtin-record.c 2009-07-13 13:25:00.000000000 +1000
    @@ -313,6 +313,10 @@
    if (*pbf == 'x') { /* vm_exec */
    char *execname = strchr(bf, '/');

    + /* Catch VDSO */
    + if (execname == NULL)
    + execname = strstr(bf, "[vdso]");
    +
    if (execname == NULL)
    continue;

    --



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