diff options
Diffstat (limited to 'target-arm/translate.c')
| -rw-r--r-- | target-arm/translate.c | 65 |
1 files changed, 31 insertions, 34 deletions
diff --git a/target-arm/translate.c b/target-arm/translate.c index 12dbfacaf2..d485e7d9c3 100644 --- a/target-arm/translate.c +++ b/target-arm/translate.c @@ -11483,48 +11483,45 @@ void gen_intermediate_code(CPUARMState *env, TranslationBlock *tb) instruction was a conditional branch or trap, and the PC has already been written. */ if (unlikely(cs->singlestep_enabled || dc->ss_active)) { - /* Make sure the pc is updated, and raise a debug exception. */ - if (dc->condjmp) { - gen_set_condexec(dc); - if (dc->is_jmp == DISAS_SWI) { - gen_ss_advance(dc); - gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb), - default_exception_el(dc)); - } else if (dc->is_jmp == DISAS_HVC) { - gen_ss_advance(dc); - gen_exception(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2); - } else if (dc->is_jmp == DISAS_SMC) { - gen_ss_advance(dc); - gen_exception(EXCP_SMC, syn_aa32_smc(), 3); - } else if (dc->ss_active) { - gen_step_complete_exception(dc); - } else { - gen_exception_internal(EXCP_DEBUG); - } - gen_set_label(dc->condlabel); - } - if (dc->condjmp || dc->is_jmp == DISAS_NEXT || - dc->is_jmp == DISAS_UPDATE) { - gen_set_pc_im(dc, dc->pc); - dc->condjmp = 0; - } + /* Unconditional and "condition passed" instruction codepath. */ gen_set_condexec(dc); - if (dc->is_jmp == DISAS_SWI && !dc->condjmp) { + switch (dc->is_jmp) { + case DISAS_SWI: gen_ss_advance(dc); gen_exception(EXCP_SWI, syn_aa32_svc(dc->svc_imm, dc->thumb), default_exception_el(dc)); - } else if (dc->is_jmp == DISAS_HVC && !dc->condjmp) { + break; + case DISAS_HVC: gen_ss_advance(dc); gen_exception(EXCP_HVC, syn_aa32_hvc(dc->svc_imm), 2); - } else if (dc->is_jmp == DISAS_SMC && !dc->condjmp) { + break; + case DISAS_SMC: gen_ss_advance(dc); gen_exception(EXCP_SMC, syn_aa32_smc(), 3); - } else if (dc->ss_active) { - gen_step_complete_exception(dc); - } else { - /* FIXME: Single stepping a WFI insn will not halt - the CPU. */ - gen_exception_internal(EXCP_DEBUG); + break; + case DISAS_NEXT: + case DISAS_UPDATE: + gen_set_pc_im(dc, dc->pc); + /* fall through */ + default: + if (dc->ss_active) { + gen_step_complete_exception(dc); + } else { + /* FIXME: Single stepping a WFI insn will not halt + the CPU. */ + gen_exception_internal(EXCP_DEBUG); + } + } + if (dc->condjmp) { + /* "Condition failed" instruction codepath. */ + gen_set_label(dc->condlabel); + gen_set_condexec(dc); + gen_set_pc_im(dc, dc->pc); + if (dc->ss_active) { + gen_step_complete_exception(dc); + } else { + gen_exception_internal(EXCP_DEBUG); + } } } else { /* While branches must always occur at the end of an IT block, |