lkml.org 
[lkml]   [2009]   [Oct]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
Date
From
Subject[PATCH 07/13] [PATCH 07/13] perf tools: handle the case with and without the "signed" trace field
From: Steven Rostedt <srostedt@redhat.com>

The trace format files now have a "signed" field. But we should still
be able to handle the kernels that do not have this field.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
---
tools/perf/util/trace-event-parse.c | 81 ++++++++++++++++++++++------------
1 files changed, 52 insertions(+), 29 deletions(-)
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 5dba81d..6319bf2 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -924,23 +924,30 @@ static int event_read_fields(struct event *event, struct format_field **fields)
if (read_expected(EVENT_OP, (char *)";") < 0)
goto fail_expect;

- if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
- goto fail_expect;
+ type = read_token(&token);
+ if (type != EVENT_NEWLINE) {
+ /* newer versions of the kernel have a "signed" type */
+ if (test_type_token(type, token, EVENT_ITEM, (char *)"signed"))
+ goto fail;

- if (read_expected(EVENT_OP, (char *)":") < 0)
- goto fail_expect;
+ free_token(token);

- if (read_expect_type(EVENT_ITEM, &token))
- goto fail;
- if (strtoul(token, NULL, 0))
- field->flags |= FIELD_IS_SIGNED;
- free_token(token);
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ goto fail_expect;

- if (read_expected(EVENT_OP, (char *)";") < 0)
- goto fail_expect;
+ if (read_expect_type(EVENT_ITEM, &token))
+ goto fail;
+
+ /* add signed type */
+
+ free_token(token);
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ goto fail_expect;
+
+ if (read_expect_type(EVENT_NEWLINE, &token))
+ goto fail;
+ }

- if (read_expect_type(EVENT_NEWLINE, &token) < 0)
- goto fail;
free_token(token);

*fields = field;
@@ -2949,21 +2956,23 @@ static void print_args(struct print_arg *args)
}
}

-static void parse_header_field(char *type,
+static void parse_header_field(char *field,
int *offset, int *size)
{
char *token;
+ int type;

if (read_expected(EVENT_ITEM, (char *)"field") < 0)
return;
if (read_expected(EVENT_OP, (char *)":") < 0)
return;
+
/* type */
if (read_expect_type(EVENT_ITEM, &token) < 0)
- return;
+ goto fail;
free_token(token);

- if (read_expected(EVENT_ITEM, type) < 0)
+ if (read_expected(EVENT_ITEM, field) < 0)
return;
if (read_expected(EVENT_OP, (char *)";") < 0)
return;
@@ -2972,7 +2981,7 @@ static void parse_header_field(char *type,
if (read_expected(EVENT_OP, (char *)":") < 0)
return;
if (read_expect_type(EVENT_ITEM, &token) < 0)
- return;
+ goto fail;
*offset = atoi(token);
free_token(token);
if (read_expected(EVENT_OP, (char *)";") < 0)
@@ -2982,22 +2991,36 @@ static void parse_header_field(char *type,
if (read_expected(EVENT_OP, (char *)":") < 0)
return;
if (read_expect_type(EVENT_ITEM, &token) < 0)
- return;
+ goto fail;
*size = atoi(token);
free_token(token);
if (read_expected(EVENT_OP, (char *)";") < 0)
return;
- if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
- return;
- if (read_expected(EVENT_OP, (char *)":") < 0)
- return;
- if (read_expect_type(EVENT_ITEM, &token) < 0)
- return;
- free_token(token);
- if (read_expected(EVENT_OP, (char *)";") < 0)
- return;
- if (read_expect_type(EVENT_NEWLINE, &token) < 0)
- return;
+ type = read_token(&token);
+ if (type != EVENT_NEWLINE) {
+ /* newer versions of the kernel have a "signed" type */
+ if (type != EVENT_ITEM)
+ goto fail;
+
+ if (strcmp(token, (char *)"signed") != 0)
+ goto fail;
+
+ free_token(token);
+
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ return;
+
+ if (read_expect_type(EVENT_ITEM, &token))
+ goto fail;
+
+ free_token(token);
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ return;
+
+ if (read_expect_type(EVENT_NEWLINE, &token))
+ goto fail;
+ }
+ fail:
free_token(token);
}

--
1.6.3.3



\
 
 \ /
  Last update: 2009-10-14 21:55    [from the cache]
©2003-2011 Jasper Spaans