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| author | Tim Newsome <tim@sifive.com> | 2019-04-08 16:42:48 -0700 |
|---|---|---|
| committer | Andreas Fritiofson <andreas.fritiofson@gmail.com> | 2019-08-28 08:07:37 +0100 |
| commit | 081954136681b26ad30db9b4cc40cb360f47602c (patch) | |
| tree | b154e83ef45f87aab59ad6bb6dd56bc47ec709fa /src/target/register.c | |
| parent | 16496488d10fc9f6c340b81446a85eef2c95ce00 (diff) | |
| download | riscv-openocd-081954136681b26ad30db9b4cc40cb360f47602c.zip riscv-openocd-081954136681b26ad30db9b4cc40cb360f47602c.tar.gz riscv-openocd-081954136681b26ad30db9b4cc40cb360f47602c.tar.bz2 | |
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 <tim@sifive.com>
Reviewed-on: http://openocd.zylin.com/5114
Tested-by: jenkins
Reviewed-by: Matthias Welwarsky <matthias@welwarsky.de>
Diffstat (limited to 'src/target/register.c')
| -rw-r--r-- | src/target/register.c | 23 |
1 files changed, 23 insertions, 0 deletions
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) { |