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target, breakpoints: report hit watchpoint in trivial case

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Some targets have no means to find out which watchpoint triggered
the debug halt. Resolve properly the trivial and most used case
when only one watchpoint is set.

Change-Id: I683933ec43e6ca0fed84a08a2aa222ed8a6e277f
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
Reviewed-on: https://review.openocd.org/c/openocd/+/9210
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
Tested-by: jenkins
This commit is contained in:
Tomas Vanek
2025-11-03 11:07:31 +01:00
committed by Antonio Borneo
parent 5ff384be08
commit a247ff1223
2 changed files with 16 additions and 2 deletions
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14
src/target/breakpoints.c
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@@ -629,6 +629,20 @@ int watchpoint_hit(struct target *target, enum watchpoint_rw *rw,
struct watchpoint *hit_watchpoint;
retval = target_hit_watchpoint(target, &hit_watchpoint);
if (retval == ERROR_NOT_IMPLEMENTED
&& target->debug_reason == DBG_REASON_WATCHPOINT) {
// Handle the trivial case: only one watchpoint is set
unsigned int cnt = 0;
struct watchpoint *wp = target->watchpoints;
while (wp) {
cnt++;
wp = wp->next;
}
if (cnt == 1) {
retval = ERROR_OK;
hit_watchpoint = target->watchpoints;
}
}
if (retval != ERROR_OK)
return ERROR_FAIL;