target/xtensa: fill register number field in the cache

Currently 'number' field is zero in the register cache and
this causes an issue on `rtos get_thread_reg_list` calls.

Signed-off-by: Erhan Kurubas <erhan.kurubas@espressif.com>
Change-Id: Iaef11e01f55d012969bbc1933f82847d5e02fec5
Reviewed-on: https://review.openocd.org/c/openocd/+/7246
Tested-by: jenkins
Reviewed-by: Ian Thompson <ianst@cadence.com>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>

diff --git a/src/target/xtensa/xtensa.c b/src/target/xtensa/xtensa.c
index faff0afa8f3d4c50a525ccb2747b225b22beb184..c1b5f43c800ee9601b27b3ec8b792f89c2f06ffe 100644 (file)
--- a/src/target/xtensa/xtensa.c
+++ b/src/target/xtensa/xtensa.c
@@ -2503,6 +2503,12 @@ static int xtensa_build_reg_cache(struct target *target)
                        unsigned int j;
                        for (j = 0; j < reg_cache->num_regs; j++) {
                                if (!strcmp(reg_cache->reg_list[j].name, xtensa->contiguous_regs_desc[i]->name)) {
+                                       /*      Register number field is not filled above.
+                                               Here we are assigning the corresponding index from the contiguous reg list.
+                                               These indexes are in the same order with gdb g-packet request/response.
+                                               Some more changes may be required for sparse reg lists.
+                                       */
+                                       reg_cache->reg_list[j].number = i;
                                        xtensa->contiguous_regs_list[i] = &(reg_cache->reg_list[j]);
                                        LOG_TARGET_DEBUG(target,
                                                "POPULATE contiguous regs list: %-16s, dbreg_num 0x%04x",