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189c466f77
WEXITSTATUS consists of the least significant 8 bits of the status
argument, so we should convert the value to signed char if we have valid
negative exit codes. And the return value of test->func() contains
negative values:
enum {
TEST_OK = 0,
TEST_FAIL = -1,
TEST_SKIP = -2,
};
Before this patch:
$ perf test -v 1
...
test child finished with 254
---- end ----
vmlinux symtab matches kallsyms: FAILED!
After this patch:
$ perf test -v 1
...
test child finished with -2
---- end ----
vmlinux symtab matches kallsyms: Skip
Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1431347316-30401-1-git-send-email-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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