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btrace: store raw btrace data

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Store the raw branch trace data that has been read from the target.

This data can be used for maintenance commands as well as for generating
a core file for the "record save" command.

gdb/
	* btrace.c (btrace_fetch): Append the new trace data.
	(btrace_clear): Clear the stored trace data.
	* btrace.h (btrace_thread_info) <data>: New.
	* common/btrace-common.h (btrace_data_clear)
	(btrace_data_append): New.
	* common/btrace-common.c (btrace_data_clear)
	(btrace_data_append): New.
This commit is contained in:
Markus Metzger
2014-02-03 11:40:50 +01:00
parent 010a18a1b1
commit 9be54cae43
5 changed files with 114 additions and 0 deletions
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5
gdb/btrace.c
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@@ -1260,6 +1260,10 @@ btrace_fetch (struct thread_info *tp)
/* Compute the trace, provided we have any. */
if (!btrace_data_empty (&btrace))
{
/* Store the raw trace data. The stored data will be cleared in
btrace_clear, so we always append the new trace. */
btrace_data_append (&btinfo->data, &btrace);
btrace_clear_history (btinfo);
btrace_compute_ftrace (tp, &btrace);
}
@@ -1296,6 +1300,7 @@ btrace_clear (struct thread_info *tp)
btinfo->end = NULL;
btinfo->ngaps = 0;
btrace_data_clear (&btinfo->data);
btrace_clear_history (btinfo);
}