提交 8b8ca6e1 编写于 作者: W Wang Nan 提交者: Arnaldo Carvalho de Melo

perf tools: Don't allow empty argument for field-separator

Both 'perf diff' and 'perf mem' have 'field-separator' option, which
causes segfault if passed with empty string. This patch uses previously
introduced 'OPT_STRING_NOEMPTY' option macro to prevent fault.
Signed-off-by: NWang Nan <wangnan0@huawei.com>
Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
Cc: pi3orama@163.com
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Zefan Li <lizefan@huawei.com>
Link: http://lkml.kernel.org/r/1426820272-23302-1-git-send-email-wangnan0@huawei.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
上级 0635b0f7
......@@ -802,7 +802,7 @@ static const struct option options[] = {
OPT_STRING('s', "sort", &sort_order, "key[,key2...]",
"sort by key(s): pid, comm, dso, symbol, parent, cpu, srcline, ..."
" Please refer the man page for the complete list."),
OPT_STRING('t', "field-separator", &symbol_conf.field_sep, "separator",
OPT_STRING_NOEMPTY('t', "field-separator", &symbol_conf.field_sep, "separator",
"separator for columns, no spaces will be added between "
"columns '.' is reserved."),
OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
......
......@@ -286,7 +286,7 @@ int cmd_mem(int argc, const char **argv, const char *prefix __maybe_unused)
"input file name"),
OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
"list of cpus to profile"),
OPT_STRING('x', "field-separator", &symbol_conf.field_sep,
OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
"separator",
"separator for columns, no spaces will be added"
" between columns '.' is reserved."),
......
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