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register: support non-existent registers

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This patch fixes a number of bugs caused by incomplete support for
non-existent registers. This is needed for targets that provide optional
registers or non-linear register numbers.

Change-Id: I216196e0051f28887a2c3da410959382369eed80
Signed-off-by: Steven Stallion <stallion@squareup.com>
Reviewed-on: http://openocd.zylin.com/4113
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
This commit is contained in:
Steven Stallion
2017-05-01 14:38:35 -05:00
committed by Matthias Welwarsky
parent 06589d2de4
commit b5964191f0
3 changed files with 21 additions and 5 deletions
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4
src/target/register.c
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@@ -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;
}