X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Ftarget%2Fregister.c;h=1c1717c8ff3b39342c12f5ba3e1f7f82546371eb;hp=d9ef53e31f0e43a2929bf8fd6aa22bffb57b51dd;hb=11b6ab90fb59bb2f794bbf7ca4cb89964ead6280;hpb=f4788652e45662d1e43933dc0620561bc4cddae0

diff --git a/src/target/register.c b/src/target/register.c
index d9ef53e31f..1c1717c8ff 100644
--- a/src/target/register.c
+++ b/src/target/register.c
@@ -18,27 +18,34 @@
  *   You should have received a copy of the GNU General Public License     *
  *   along with this program; if not, write to the                         *
  *   Free Software Foundation, Inc.,                                       *
- *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  ***************************************************************************/
+
 #ifdef HAVE_CONFIG_H
 #include "config.h"
 #endif
 
-#include "types.h"
 #include "register.h"
-#include "log.h"
+#include <helper/log.h>
 
+/**
+ * @file
+ * Holds utilities to work with register caches.
+ *
+ * OpenOCD uses machine registers internally, and exposes them by name
+ * to Tcl scripts.  Sets of related registers are grouped into caches.
+ * For example, a CPU core will expose a set of registers, and there
+ * may be separate registers associated with debug or trace modules.
+ */
 
-struct reg* register_get_by_name(struct reg_cache *first,
+struct reg *register_get_by_name(struct reg_cache *first,
 		const char *name, bool search_all)
 {
-	int i;
+	unsigned i;
 	struct reg_cache *cache = first;
 
-	while (cache)
-	{
-		for (i = 0; i < cache->num_regs; i++)
-		{
+	while (cache) {
+		for (i = 0; i < cache->num_regs; i++) {
 			if (strcmp(cache->reg_list[i].name, name) == 0)
 				return &(cache->reg_list[i]);
 		}
@@ -52,7 +59,7 @@ struct reg* register_get_by_name(struct reg_cache *first,
 	return NULL;
 }
 
-struct reg_cache** register_get_last_cache_p(struct reg_cache **first)
+struct reg_cache **register_get_last_cache_p(struct reg_cache **first)
 {
 	struct reg_cache **cache_p = first;
 
@@ -65,6 +72,25 @@ struct reg_cache** register_get_last_cache_p(struct reg_cache **first)
 	return cache_p;
 }
 
+void register_unlink_cache(struct reg_cache **cache_p, const struct reg_cache *cache)
+{
+	while (*cache_p && *cache_p != cache)
+		cache_p = &((*cache_p)->next);
+	if (*cache_p)
+		*cache_p = cache->next;
+}
+
+/** Marks the contents of the register cache as invalid (and clean). */
+void register_cache_invalidate(struct reg_cache *cache)
+{
+	struct reg *reg = cache->reg_list;
+
+	for (unsigned n = cache->num_regs; n != 0; n--, reg++) {
+		reg->valid = 0;
+		reg->dirty = 0;
+	}
+}
+
 static int register_get_dummy_core_reg(struct reg *reg)
 {
 	return ERROR_OK;