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Stop GDB when polling fails, srst assert or powerdropout is detected

This commit is contained in:
Øyvind Harboe 2009-10-08 14:53:25 +02:00
parent d75b9ec697
commit f525f2ef0d
3 changed files with 25 additions and 5 deletions
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2
src/server/gdb_server.c
View File

@ -714,7 +714,7 @@ int gdb_target_callback_event_handler(struct target_s *target, enum target_event
target_handle_event(target, event);
switch (event)
{
case TARGET_EVENT_EARLY_HALTED:
case TARGET_EVENT_GDB_HALT:
gdb_frontend_halted(target, connection);
break;
case TARGET_EVENT_HALTED:

18
src/target/target.c
View File

@ -157,7 +157,7 @@ static const Jim_Nvp nvp_target_event[] = {
{ .value = TARGET_EVENT_OLD_gdb_program_config , .name = "old-gdb_program_config" },
{ .value = TARGET_EVENT_OLD_pre_resume , .name = "old-pre_resume" },
{ .value = TARGET_EVENT_EARLY_HALTED, .name = "early-halted" },
{ .value = TARGET_EVENT_GDB_HALT, .name = "gdb-halt" },
{ .value = TARGET_EVENT_HALTED, .name = "halted" },
{ .value = TARGET_EVENT_RESUMED, .name = "resumed" },
{ .value = TARGET_EVENT_RESUME_START, .name = "resume-start" },
@ -821,7 +821,7 @@ int target_call_event_callbacks(target_t *target, enum target_event event)
if (event == TARGET_EVENT_HALTED)
{
/* execute early halted first */
target_call_event_callbacks(target, TARGET_EVENT_EARLY_HALTED);
target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
}
LOG_DEBUG("target event %i (%s)",
@ -1658,6 +1658,15 @@ static int sense_handler(void)
return ERROR_OK;
}
static void target_call_event_callbacks_all(enum target_event e) {
target_t *target;
target = all_targets;
while (target) {
target_call_event_callbacks(target, e);
target = target->next;
}
}
/* process target state changes */
int handle_target(void *priv)
{
@ -1676,6 +1685,7 @@ int handle_target(void *priv)
int did_something = 0;
if (runSrstAsserted)
{
target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
Jim_Eval(interp, "srst_asserted");
did_something = 1;
}
@ -1686,6 +1696,7 @@ int handle_target(void *priv)
}
if (runPowerDropout)
{
target_call_event_callbacks_all(TARGET_EVENT_GDB_HALT);
Jim_Eval(interp, "power_dropout");
did_something = 1;
}
@ -1726,7 +1737,10 @@ int handle_target(void *priv)
{
/* polling may fail silently until the target has been examined */
if ((retval = target_poll(target)) != ERROR_OK)
{
target_call_event_callbacks(target, TARGET_EVENT_GDB_HALT);
return retval;
}
}
}

10
src/target/target.h
View File

@ -163,8 +163,14 @@ enum target_event
/* allow GDB to do stuff before others handle the halted event,
* this is in lieu of defining ordering of invocation of events,
* which would be more complicated */
TARGET_EVENT_EARLY_HALTED,
* which would be more complicated
*
* Telling GDB to halt does not mean that the target stopped running,
* simply that we're dropping out of GDB's waiting for step or continue.
*
* This can be useful when e.g. detecting power dropout.
*/
TARGET_EVENT_GDB_HALT,
TARGET_EVENT_HALTED, /* target entered debug state from normal execution or reset */
TARGET_EVENT_RESUMED, /* target resumed to normal execution */
TARGET_EVENT_RESUME_START,