FreeChainXenon/binutils-gdb
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* tracepoint.c (tfile_get_trace_state_variable_value): Look for

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the last matched 'V' blcok in trace frame.

gdb/gdbserver:

	* tracepoint.c (traceframe_read_tsv): Look for the last matched
	'V' block in trace frame.

gdb/testsuite:

	* gdb.trace/tsv.exp (check_tsv): New.
	(top level): Save a tfile on current trace session. Call
	check_tsv on live target.  Load the tfile with target tfile
	and call check_tsv again.
This commit is contained in:
Yao Qi 2013-03-13 03:40:27 +00:00
parent 045dd51fd8
commit 8ddb196517
6 changed files with 63 additions and 10 deletions
Download patch file Download diff file Expand all files Collapse all files

10
gdb/tracepoint.c
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@ -4655,7 +4655,12 @@ static int
tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
{
int pos;
int found = 0;
/* Iterate over blocks in current frame and find the last 'V'
block in which tsv number is TSVNUM. In one trace frame, there
may be multiple 'V' blocks created for a given trace variable,
and the last matched 'V' block contains the updated value. */
pos = 0;
while ((pos = traceframe_find_block_type ('V', pos)) >= 0)
{
@ -4671,13 +4676,12 @@ tfile_get_trace_state_variable_value (int tsvnum, LONGEST *val)
*val = extract_signed_integer ((gdb_byte *) val, 8,
gdbarch_byte_order
(target_gdbarch ()));
return 1;
found = 1;
}
pos += (4 + 8);
}
/* Didn't find anything. */
return 0;
return found;
}
static int