diff options
Diffstat (limited to 'tools/lib/traceevent/event-parse.c')
| -rw-r--r-- | tools/lib/traceevent/event-parse.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c index 4d5092f67167..476626af7317 100644 --- a/tools/lib/traceevent/event-parse.c +++ b/tools/lib/traceevent/event-parse.c @@ -2047,6 +2047,18 @@ static int arg_num_eval(struct print_arg *arg, long long *val) break; *val = left - right; break; + case '+': + if (arg->op.left->type == PRINT_NULL) + left = 0; + else + ret = arg_num_eval(arg->op.left, &left); + if (!ret) + break; + ret = arg_num_eval(arg->op.right, &right); + if (!ret) + break; + *val = left + right; + break; default: do_warning("unknown op '%s'", arg->op.op); ret = 0; |