[Qemu-devel] [PATCH] target/tricore: Fix QEMU crashing when using -singlestep

[Qemu-devel] [PATCH] target/tricore: Fix QEMU crashing when using -singlestep

[Bastian Koppelmann]

when -singlestep is enabled we will actually return a tb->size of 0,
even though we emit one instruction. This is because we do the update to ctx.pc
after exiting the translation loop on the singlestep path. Therefore we
substract pc_start from ctx.pc, aka pc_start.

Signed-off-by: Bastian Koppelmann <kbastian@mail.uni-paderborn.de>
---
 target/tricore/translate.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/target/tricore/translate.c b/target/tricore/translate.c
index aef0d9cf06..be2579d189 100644
--- a/target/tricore/translate.c
+++ b/target/tricore/translate.c
@@ -8843,12 +8843,12 @@ void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb)
         ctx.opcode = cpu_ldl_code(env, ctx.pc);
         decode_opc(env, &ctx, 0);

+        ctx.pc = ctx.next_pc;
         if (num_insns >= max_insns || tcg_op_buf_full()) {
             gen_save_pc(ctx.next_pc);
             tcg_gen_exit_tb(0);
             break;
         }
-        ctx.pc = ctx.next_pc;
     }

     gen_tb_end(tb, num_insns);
--
2.11.0