diff options
| -rw-r--r-- | src/target/riscv/riscv.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/target/riscv/riscv.c b/src/target/riscv/riscv.c index 6640c2d..e213ffa 100644 --- a/src/target/riscv/riscv.c +++ b/src/target/riscv/riscv.c @@ -3339,7 +3339,9 @@ int riscv_enumerate_triggers(struct target *target) for (unsigned t = 0; t < RISCV_MAX_TRIGGERS; ++t) { r->trigger_count[hartid] = t; - riscv_set_register_on_hart(target, hartid, GDB_REGNO_TSELECT, t); + /* If we can't write tselect, then this hart does not support triggers. */ + if (riscv_set_register_on_hart(target, hartid, GDB_REGNO_TSELECT, t) != ERROR_OK) + break; uint64_t tselect_rb; result = riscv_get_register_on_hart(target, &tselect_rb, hartid, GDB_REGNO_TSELECT); @@ -3357,6 +3359,8 @@ int riscv_enumerate_triggers(struct target *target) return result; int type = get_field(tdata1, MCONTROL_TYPE(riscv_xlen(target))); + if (type == 0) + break; switch (type) { case 1: /* On these older cores we don't support software using |