[PATCH] target/riscv: correct "code should not be reached" for x-rv128

[Frédéric Pétrot]

The addition of uxl support in gdbstub adds a few checks on the maximum
register length, but omitted MXL_RV128, leading to the occurence of
"code should not be reached" in a few places.
This patch makes rv128 react as rv64 for gdb, as previously.

Signed-off-by: Frédéric Pétrot <frederic.petrot@univ-grenoble-alpes.fr>
---
 target/riscv/gdbstub.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/target/riscv/gdbstub.c b/target/riscv/gdbstub.c
index f531a74c2f..9ed049c29e 100644
--- a/target/riscv/gdbstub.c
+++ b/target/riscv/gdbstub.c
@@ -64,6 +64,7 @@ int riscv_cpu_gdb_read_register(CPUState *cs, GByteArray 
*mem_buf, int n)
     case MXL_RV32:
         return gdb_get_reg32(mem_buf, tmp);
     case MXL_RV64:
+    case MXL_RV128:
         return gdb_get_reg64(mem_buf, tmp);
     default:
         g_assert_not_reached();
@@ -84,6 +85,7 @@ int riscv_cpu_gdb_write_register(CPUState *cs, uint8_t 
*mem_buf, int n)
         length = 4;
         break;
     case MXL_RV64:
+    case MXL_RV128:
         if (env->xl < MXL_RV64) {
             tmp = (int32_t)ldq_p(mem_buf);
         } else {
@@ -420,6 +422,7 @@ void riscv_cpu_register_gdb_regs_for_features(CPUState *cs)
                                  1, "riscv-32bit-virtual.xml", 0);
         break;
     case MXL_RV64:
+    case MXL_RV128:
         gdb_register_coprocessor(cs, riscv_gdb_get_virtual,
                                  riscv_gdb_set_virtual,
                                  1, "riscv-64bit-virtual.xml", 0);
-- 
2.34.1