From 081954136681b26ad30db9b4cc40cb360f47602c Mon Sep 17 00:00:00 2001 From: Tim Newsome Date: Mon, 8 Apr 2019 16:42:48 -0700 Subject: gdb_server, rtos: Fine-grained RTOS register access 1. Add get_thread_reg() to rtos. It's used in rtos_get_gdb_reg() to read the value of a single register, instead of reading all register values by calling get_thread_reg_list(). 2. Add set_reg() to rtos. gdb_server uses this to change a single register value for a specific thread. 3. Add target_get_gdb_reg_list_noread() so it's possible for gdb to get a list of registers without attempting to read their contents. The clang static checker doesn't find any new problems with this change. Change-Id: I77f792d1238cb015b91527ca8cb99593ccc8870e Signed-off-by: Tim Newsome Reviewed-on: http://openocd.zylin.com/5114 Tested-by: jenkins Reviewed-by: Matthias Welwarsky --- src/target/register.c | 23 +++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'src/target/register.c') diff --git a/src/target/register.c b/src/target/register.c index 5352d2f..4ddda6e 100644 --- a/src/target/register.c +++ b/src/target/register.c @@ -36,6 +36,29 @@ * may be separate registers associated with debug or trace modules. */ +struct reg *register_get_by_number(struct reg_cache *first, + uint32_t reg_num, bool search_all) +{ + unsigned i; + struct reg_cache *cache = first; + + while (cache) { + for (i = 0; i < cache->num_regs; i++) { + if (cache->reg_list[i].exist == false) + continue; + if (cache->reg_list[i].number == reg_num) + return &(cache->reg_list[i]); + } + + if (search_all) + cache = cache->next; + else + break; + } + + return NULL; +} + struct reg *register_get_by_name(struct reg_cache *first, const char *name, bool search_all) { -- cgit v1.1