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perf tools: Decompress kernel module when reading DSO data

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Currently perf decompresses kernel modules when loading the symbol table
but it missed to do it when reading raw data.

Signed-off-by: Namhyung Kim <[email protected]>
Acked-by: Jiri Olsa <[email protected]>
Cc: Adrian Hunter <[email protected]>
Cc: David Ahern <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Wang Nan <[email protected]>
Cc: [email protected]
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnaldo Carvalho de Melo <[email protected]>
This commit is contained in:
Namhyung Kim 2017-06-08 16:31:05 +09:00 • committed by Arnaldo Carvalho de Melo
commit 1d6b3c9ba7
1 changed files with 16 additions and 0 deletions
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16
tools/perf/util/dso.c
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@ -475,7 +475,23 @@ static int __open_dso(struct dso *dso, struct machine *machine)
return -EINVAL;
}
if (dso__needs_decompress(dso)) {
char newpath[KMOD_DECOMP_LEN];
size_t len = sizeof(newpath);
if (dso__decompress_kmodule_path(dso, name, newpath, len) < 0) {
free(name);
return -dso->load_errno;
}
strcpy(name, newpath);
}
fd = do_open(name);
if (dso__needs_decompress(dso))
unlink(name);
free(name);
return fd;
}