diff options
Diffstat (limited to 'target/m68k')
| -rw-r--r-- | target/m68k/translate.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/target/m68k/translate.c b/target/m68k/translate.c index f14ecab5a5..10e8aba42e 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -319,6 +319,15 @@ static void gen_exception(DisasContext *s, uint32_t dest, int nr) s->base.is_jmp = DISAS_NORETURN; } +static void gen_singlestep_exception(DisasContext *s) +{ + /* + * Generate the right kind of exception for singlestep, which is + * EXCP_DEBUG for QEMU's gdb singlestepping. + */ + gen_raise_exception(EXCP_DEBUG); +} + static inline void gen_addr_fault(DisasContext *s) { gen_exception(s, s->base.pc_next, EXCP_ADDRESS); @@ -1520,7 +1529,7 @@ static void gen_jmp_tb(DisasContext *s, int n, uint32_t dest) if (unlikely(is_singlestepping(s))) { update_cc_op(s); tcg_gen_movi_i32(QREG_PC, dest); - gen_raise_exception(EXCP_DEBUG); + gen_singlestep_exception(s); } else if (use_goto_tb(s, dest)) { tcg_gen_goto_tb(n); tcg_gen_movi_i32(QREG_PC, dest); @@ -6260,7 +6269,7 @@ static void m68k_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) update_cc_op(dc); if (is_singlestepping(dc)) { tcg_gen_movi_i32(QREG_PC, dc->pc); - gen_raise_exception(EXCP_DEBUG); + gen_singlestep_exception(dc); } else { gen_jmp_tb(dc, 0, dc->pc); } @@ -6268,7 +6277,7 @@ static void m68k_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) case DISAS_JUMP: /* We updated CC_OP and PC in gen_jmp/gen_jmp_im. */ if (is_singlestepping(dc)) { - gen_raise_exception(EXCP_DEBUG); + gen_singlestep_exception(dc); } else { tcg_gen_lookup_and_goto_ptr(); } @@ -6279,7 +6288,7 @@ static void m68k_tr_tb_stop(DisasContextBase *dcbase, CPUState *cpu) * other state that may require returning to the main loop. */ if (is_singlestepping(dc)) { - gen_raise_exception(EXCP_DEBUG); + gen_singlestep_exception(dc); } else { tcg_gen_exit_tb(NULL, 0); } |