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perf tools: Handle the case with and without the "signed" trace field

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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>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
LKML-Reference: <20091014194358.888239553@goodmis.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt 2009-10-14 15:43:38 -04:00 committed by Ingo Molnar
parent f1d1feecf0
commit 13999e5934
1 changed files with 52 additions and 29 deletions
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81
tools/perf/util/trace-event-parse.c
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@ -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);
}