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target/cortex_a: fix number of watchpoints 

Decrement the available watchpoints only when succeed setting it.
Initialize the available watchpoint with the correct value.

Change-Id: I0f93b347300b8ebedbcd9e718d4ba32b26cf6846
Signed-off-by: Antonio Borneo <borneo.antonio@gmail.com>
Reviewed-on: http://openocd.zylin.com/6196
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit is contained in:
Antonio Borneo 2021-04-29 09:22:00 +02:00
parent 1fb736f6c5
commit ffaef5809c
1 changed files with 6 additions and 2 deletions
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8
src/target/cortex_a.c
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@ -1802,8 +1802,12 @@ static int cortex_a_add_watchpoint(struct target *target, struct watchpoint *wat
return ERROR_TARGET_RESOURCE_NOT_AVAILABLE;
}
int retval = cortex_a_set_watchpoint(target, watchpoint);
if (retval != ERROR_OK)
return retval;
cortex_a->wrp_num_available--;
return cortex_a_set_watchpoint(target, watchpoint);
return ERROR_OK;
}
/**
@ -3007,7 +3011,7 @@ static int cortex_a_examine_first(struct target *target)
/* Setup Watchpoint Register Pairs */
cortex_a->wrp_num = ((didr >> 28) & 0x0F) + 1;
cortex_a->wrp_num_available = cortex_a->brp_num;
cortex_a->wrp_num_available = cortex_a->wrp_num;
free(cortex_a->wrp_list);
cortex_a->wrp_list = calloc(cortex_a->wrp_num, sizeof(struct cortex_a_wrp));
for (i = 0; i < cortex_a->wrp_num; i++) {