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Diffstat (limited to 'src/target/cortex_m.c')
-rw-r--r--src/target/cortex_m.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/src/target/cortex_m.c b/src/target/cortex_m.c
index 38ed4c3a..028bfd80 100644
--- a/src/target/cortex_m.c
+++ b/src/target/cortex_m.c
@@ -61,6 +61,7 @@
/* forward declarations */
static int cortex_m_store_core_reg_u32(struct target *target,
uint32_t num, uint32_t value);
+static void cortex_m_dwt_free(struct target *target);
static int cortexm_dap_read_coreregister_u32(struct target *target,
uint32_t *value, int regnum)
@@ -1833,6 +1834,27 @@ fail1:
*/
}
+static void cortex_m_dwt_free(struct target *target)
+{
+ struct cortex_m_common *cm = target_to_cm(target);
+ struct reg_cache *cache = cm->dwt_cache;
+
+ free(cm->dwt_comparator_list);
+ cm->dwt_comparator_list = NULL;
+
+ if (cache) {
+ register_unlink_cache(&target->reg_cache, cache);
+
+ if (cache->reg_list) {
+ for (size_t i = 0; i < cache->num_regs; i++)
+ free(cache->reg_list[i].arch_info);
+ free(cache->reg_list);
+ }
+ free(cache);
+ }
+ cm->dwt_cache = NULL;
+}
+
#define MVFR0 0xe000ef40
#define MVFR1 0xe000ef44
@@ -1910,6 +1932,7 @@ int cortex_m_examine(struct target *target)
cortex_m->fp_num_code = ((fpcr >> 8) & 0x70) | ((fpcr >> 4) & 0xF);
cortex_m->fp_num_lit = (fpcr >> 8) & 0xF;
cortex_m->fp_code_available = cortex_m->fp_num_code;
+ free(cortex_m->fp_comparator_list);
cortex_m->fp_comparator_list = calloc(
cortex_m->fp_num_code + cortex_m->fp_num_lit,
sizeof(struct cortex_m_fp_comparator));
@@ -1928,6 +1951,7 @@ int cortex_m_examine(struct target *target)
cortex_m->fp_num_lit);
/* Setup DWT */
+ cortex_m_dwt_free(target);
cortex_m_dwt_setup(cortex_m, target);
/* These hardware breakpoints only work for code in flash! */