forked from Minki/linux
0c8c20779c
Without this patch, perf report cause segfault if pass "" as '-t': $ perf report -t "" # To display the perf.data header info, please use --header/--header-only options. # # Samples: 37 of event 'syscalls:sys_enter_write' # Event count (approx.): 37 # # Children SelfCommand Shared Object Symbol Segmentation fault Since -t is used to add field-separator for generate table, -t "" is actually meanless. This patch defines a new OPT_STRING_NOEMPTY() option generator to ensure user never pass empty string to that option. Signed-off-by: Wang Nan <wangnan0@huawei.com> Acked-by: Namhyung Kim <namhyung@kernel.org> Cc: pi3orama@163.com Cc: Jiri Olsa <jolsa@kernel.org> Cc: Zefan Li <lizefan@huawei.com> Link: http://lkml.kernel.org/r/1426251114-198991-1-git-send-email-wangnan0@huawei.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com> |
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