register: support non-existent registers

[fw/openocd] / src / target / register.c

diff --git a/src/target/register.c b/src/target/register.c
index 1d63e12f70bd83b719171e0160e8d25d80eedae0..850641448b637a276ced58748f5e504871ac4168 100644 (file)
--- a/src/target/register.c
+++ b/src/target/register.c
@@ -44,6 +44,8 @@ struct reg *register_get_by_name(struct reg_cache *first,
 
        while (cache) {
                for (i = 0; i < cache->num_regs; i++) {
+                       if (cache->reg_list[i].exist == false)
+                               continue;
                        if (strcmp(cache->reg_list[i].name, name) == 0)
                                return &(cache->reg_list[i]);
                }
@@ -84,6 +86,8 @@ void register_cache_invalidate(struct reg_cache *cache)
        struct reg *reg = cache->reg_list;
 
        for (unsigned n = cache->num_regs; n != 0; n--, reg++) {
+               if (reg->exist == false)
+                       continue;
                reg->valid = 0;
                reg->dirty = 0;
        }