[debug] Reserve the trigger in `HwbpManual`

After https://github.com/riscv-collab/riscv-openocd/pull/1111 is merged,
the registers a user wishes to have direct control of should be
reserved.
This is the case in `HwbpManual`.

The test still works with older OpenOCD versions, since no exception
is generated when a command (`riscv reserve_trigger` in this case)
is not found.

1 files changed, 2 insertions, 0 deletions

diff --git a/debug/gdbserver.py b/debug/gdbserver.py
index 235814a..78fde22 100755
--- a/debug/gdbserver.py
+++ b/debug/gdbserver.py
@@ -711,6 +711,8 @@ class HwbpManual(DebugTest):
             self.gdb.p("$tdata1=0")
             tselect += 1
 
+        self.gdb.command(f"monitor riscv reserve_trigger {tselect}")
+
         # The breakpoint should be hit exactly 2 times.
         for _ in range(2):
             output = self.gdb.c(ops=2)