Messages in this thread Patch in this message | | | From | David Ahern <> | Subject | [PATCH] perf: Don't assume host's module path for default guest machine | Date | Sun, 1 Jul 2012 17:55:04 -0600 |
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When using the default guest modules option (--guestmodules) for perf-kvm the host's module path is prepended to the modules. e.g,
... PERF_RECORD_MMAP 0/0: [0xffffffffa0005000(0x4fff) @ 0]: /lib/modules/3.4.0+/kernel/drivers/virtio/virtio.ko
which is wrong so don't do it. With this patch MMAP events for default guest kernel modules become:
... PERF_RECORD_MMAP 0/0: [0xffffffffa0005000(0x4fff) @ 0]: [virtio]
Signed-off-by: David Ahern <dsahern@gmail.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> --- tools/perf/util/symbol.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 50958bb..90f6951 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -2077,6 +2077,9 @@ static int machine__create_modules(struct machine *machine) free(line); fclose(file); + if (machine->pid == DEFAULT_GUEST_KERNEL_ID) + return 0; + return machine__set_modules_path(machine); out_delete_line: -- 1.7.10.1
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