Messages in this thread Patch in this message | | | From | David Sharp <> | Subject | [PATCH perf 1/2] perf: trace-event-parse: support additional operators: '!', '~', and '!=' | Date | Thu, 10 Mar 2011 14:55:55 -0800 |
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Add support for the unary operators '!' and '~', and support '!=' so that it is differentiated from '!'.
Signed-off-by: David Sharp <dhsharp@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@elte.hu> Cc: Stephane Eranian <eranian@google.com> --- tools/perf/util/trace-event-parse.c | 19 +++++++++++++++++++ 1 files changed, 19 insertions(+), 0 deletions(-)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c index 73a0222..67fe01a 100644 --- a/tools/perf/util/trace-event-parse.c +++ b/tools/perf/util/trace-event-parse.c @@ -1107,6 +1107,9 @@ static int get_op_prio(char *op) { if (!op[1]) { switch (op[0]) { + case '~': + case '!': + return 4; case '*': case '/': case '%': @@ -1184,6 +1187,7 @@ process_op(struct event *event, struct print_arg *arg, char **tok) return EVENT_ERROR; } switch (token[0]) { + case '~': case '!': case '+': case '-': @@ -2109,6 +2113,21 @@ static unsigned long long eval_num_arg(void *data, int size, left = eval_num_arg(data, size, event, arg->op.left); right = eval_num_arg(data, size, event, arg->op.right); switch (arg->op.op[0]) { + case '!': + switch (arg->op.op[1]) { + case 0: + val = !right; + break; + case '=': + val = left != right; + break; + default: + die("unknown op '%s'", arg->op.op); + } + break; + case '~': + val = ~right; + break; case '|': if (arg->op.op[1]) val = left || right; -- 1.7.3.1
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