FreeChainXenon/binutils-gdb
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Add branch trace information to struct thread_info.

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Add functions to enable, disable, clear, and fetch a thread's branch trace.

gdb/
	* target.h: Include btrace.h.
	(struct target_ops) <to_supports_btrace, to_enable_btrace,
	to_disable_btrace, to_teardown_btrace, to_read_btrace>: New.
	* target.c (target_supports_btrace): New function.
	(target_enable_btrace): New function.
	(target_disable_btrace): New function.
	(target_teardown_btrace): New function.
	(target_read_btrace): New function.
	* btrace.h: New file.
	* btrace.c: New file.
	* Makefile.in: Add btrace.c.
	* gdbthread.h: Include btrace.h.
	(struct thread_info): Add btrace field.
	* thread.c: Include btrace.h.
	(clear_thread_inferior_resources): Call target_teardown_btrace.
	* common/btrace-common.h: New file.
This commit is contained in:
Markus Metzger 2013-03-11 08:17:08 +00:00
parent 7bc0ae020f
commit 02d2762576
9 changed files with 801 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

73
gdb/target.c
View file

@ -4153,6 +4153,79 @@ target_ranged_break_num_registers (void)
return -1;
}
/* See target.h. */
int
target_supports_btrace (void)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
if (t->to_supports_btrace != NULL)
return t->to_supports_btrace ();
return 0;
}
/* See target.h. */
struct btrace_target_info *
target_enable_btrace (ptid_t ptid)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
if (t->to_enable_btrace != NULL)
return t->to_enable_btrace (ptid);
tcomplain ();
return NULL;
}
/* See target.h. */
void
target_disable_btrace (struct btrace_target_info *btinfo)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
if (t->to_disable_btrace != NULL)
return t->to_disable_btrace (btinfo);
tcomplain ();
}
/* See target.h. */
void
target_teardown_btrace (struct btrace_target_info *btinfo)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
if (t->to_teardown_btrace != NULL)
return t->to_teardown_btrace (btinfo);
tcomplain ();
}
/* See target.h. */
VEC (btrace_block_s) *
target_read_btrace (struct btrace_target_info *btinfo,
enum btrace_read_type type)
{
struct target_ops *t;
for (t = current_target.beneath; t != NULL; t = t->beneath)
if (t->to_read_btrace != NULL)
return t->to_read_btrace (btinfo, type);
tcomplain ();
return NULL;
}
static void
debug_to_prepare_to_store (struct regcache *regcache)
{