bool
ABISysV_i386::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t fp_reg_num = gcc_dwarf_ebp;
uint32_t sp_reg_num = gcc_dwarf_esp;
uint32_t pc_reg_num = gcc_dwarf_eip;
UnwindPlan::RowSP row(new UnwindPlan::Row);
const int32_t ptr_size = 4;
row->GetCFAValue().SetIsRegisterPlusOffset(fp_reg_num, 2 * ptr_size);
row->SetOffset (0);
row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("i386 default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
return true;
}
bool
ABISysV_ppc::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t lr_reg_num = gcc_dwarf_lr;
uint32_t sp_reg_num = gcc_dwarf_r1;
uint32_t pc_reg_num = gcc_dwarf_pc;
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value
row->GetCFAValue().SetIsRegisterPlusOffset (sp_reg_num, 0);
// The previous PC is in the LR
row->SetRegisterLocationToRegister(pc_reg_num, lr_reg_num, true);
unwind_plan.AppendRow (row);
// All other registers are the same.
unwind_plan.SetSourceName ("ppc at-func-entry default");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
return true;
}
bool
ABIMacOSX_arm::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
uint32_t fp_reg_num = dwarf_r7; // apple uses r7 for all frames. Normal arm uses r11;
uint32_t pc_reg_num = dwarf_pc;
UnwindPlan::RowSP row(new UnwindPlan::Row);
const int32_t ptr_size = 4;
unwind_plan.Clear ();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
row->SetCFARegister (fp_reg_num);
row->SetCFAOffset (2 * ptr_size);
row->SetOffset (0);
row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("arm-apple-ios default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
return true;
}
bool
ABISysV_ppc64::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t sp_reg_num = dwarf_r1;
uint32_t pc_reg_num = dwarf_lr;
UnwindPlan::RowSP row(new UnwindPlan::Row);
const int32_t ptr_size = 8;
row->GetCFAValue().SetIsRegisterDereferenced(sp_reg_num);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * 2, true);
row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
row->SetRegisterLocationToAtCFAPlusOffset(dwarf_cr, ptr_size, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("ppc64 default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(dwarf_lr);
return true;
}
bool
ABISysV_arm::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear ();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
//TODO: Handle thumb
uint32_t fp_reg_num = dwarf_r11;
uint32_t pc_reg_num = dwarf_pc;
UnwindPlan::RowSP row(new UnwindPlan::Row);
const int32_t ptr_size = 4;
row->GetCFAValue().SetIsRegisterPlusOffset (fp_reg_num, 2 * ptr_size);
row->SetOffset (0);
row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, ptr_size * -2, true);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, ptr_size * -1, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("arm default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
return true;
}
bool
ABINyuzi::CreateDefaultUnwindPlan ( UnwindPlan &unwind_plan )
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindDWARF);
unwind_plan.SetReturnAddressRegister(30);
UnwindPlan::RowSP row(new UnwindPlan::Row);
row->GetCFAValue().SetIsRegisterPlusOffset(29, 0);
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("nyuzi default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
return true;
}
bool EmulateInstructionARM64::CreateFunctionEntryUnwind(
UnwindPlan &unwind_plan) {
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindLLDB);
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our previous Call Frame Address is the stack pointer
row->GetCFAValue().SetIsRegisterPlusOffset(gpr_sp_arm64, 0);
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("EmulateInstructionARM64");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolYes);
unwind_plan.SetReturnAddressRegister(gpr_lr_arm64);
return true;
}
bool
ABISysV_mips::CreateDefaultUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
UnwindPlan::RowSP row(new UnwindPlan::Row);
row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("mips default unwind plan");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolNo);
return true;
}
bool
ABISysV_i386::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
uint32_t sp_reg_num = gcc_dwarf_esp;
uint32_t pc_reg_num = gcc_dwarf_eip;
UnwindPlan::RowSP row(new UnwindPlan::Row);
row->GetCFAValue().SetIsRegisterPlusOffset(sp_reg_num, 4);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, -4, false);
row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
unwind_plan.AppendRow (row);
unwind_plan.SetSourceName ("i386 at-func-entry default");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
return true;
}
// See lib/Target/Nyuzi/NyuziFrameLowering.cpp, emitPrologue
bool
ABINyuzi::CreateFunctionEntryUnwindPlan ( UnwindPlan &unwind_plan )
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindDWARF);
unwind_plan.SetReturnAddressRegister(30);
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value
row->GetCFAValue().SetIsRegisterPlusOffset(29, 0);
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("nyuzi at-func-entry default");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
return true;
}
bool ABISysV_s390x::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) {
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindDWARF);
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value + 160
row->GetCFAValue().SetIsRegisterPlusOffset(dwarf_r15_s390x, 160);
// The previous PC is in r14
row->SetRegisterLocationToRegister(dwarf_pswa_s390x, dwarf_r14_s390x, true);
// All other registers are the same.
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("s390x at-func-entry default");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
return true;
}
// called when we are on the first instruction of a new function for hexagon
// the return address is in RA (R31)
bool ABISysV_hexagon::CreateFunctionEntryUnwindPlan(UnwindPlan &unwind_plan) {
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindGeneric);
unwind_plan.SetReturnAddressRegister(LLDB_REGNUM_GENERIC_RA);
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value
row->GetCFAValue().SetIsRegisterPlusOffset(LLDB_REGNUM_GENERIC_SP, 4);
row->SetOffset(0);
// The previous PC is in the LR
row->SetRegisterLocationToRegister(LLDB_REGNUM_GENERIC_PC,
LLDB_REGNUM_GENERIC_RA, true);
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("hexagon at-func-entry default");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
return true;
}
bool
ABISysV_mips::CreateFunctionEntryUnwindPlan (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
UnwindPlan::RowSP row(new UnwindPlan::Row);
// Our Call Frame Address is the stack pointer value
row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_r29, 0);
// The previous PC is in the RA
row->SetRegisterLocationToRegister(gcc_dwarf_pc, gcc_dwarf_r31, true);
unwind_plan.AppendRow (row);
// All other registers are the same.
unwind_plan.SetSourceName ("mips at-func-entry default");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetReturnAddressRegister(gcc_dwarf_r31);
return true;
}
bool ABISysV_hexagon::CreateDefaultUnwindPlan(UnwindPlan &unwind_plan) {
unwind_plan.Clear();
unwind_plan.SetRegisterKind(eRegisterKindGeneric);
uint32_t fp_reg_num = LLDB_REGNUM_GENERIC_FP;
uint32_t sp_reg_num = LLDB_REGNUM_GENERIC_SP;
uint32_t pc_reg_num = LLDB_REGNUM_GENERIC_PC;
UnwindPlan::RowSP row(new UnwindPlan::Row);
row->GetCFAValue().SetIsRegisterPlusOffset(LLDB_REGNUM_GENERIC_FP, 8);
row->SetRegisterLocationToAtCFAPlusOffset(fp_reg_num, -8, true);
row->SetRegisterLocationToAtCFAPlusOffset(pc_reg_num, -4, true);
row->SetRegisterLocationToIsCFAPlusOffset(sp_reg_num, 0, true);
unwind_plan.AppendRow(row);
unwind_plan.SetSourceName("hexagon default unwind plan");
unwind_plan.SetSourcedFromCompiler(eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions(eLazyBoolNo);
return true;
}
bool
EmulateInstructionMIPS::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
unwind_plan.SetRegisterKind (eRegisterKindDWARF);
UnwindPlan::RowSP row(new UnwindPlan::Row);
const bool can_replace = false;
// Our previous Call Frame Address is the stack pointer
row->GetCFAValue().SetIsRegisterPlusOffset(gcc_dwarf_sp_mips64, 0);
// Our previous PC is in the RA
row->SetRegisterLocationToRegister(gcc_dwarf_pc_mips64, gcc_dwarf_ra_mips64, can_replace);
unwind_plan.AppendRow (row);
// All other registers are the same.
unwind_plan.SetSourceName ("EmulateInstructionMIPS");
unwind_plan.SetSourcedFromCompiler (eLazyBoolNo);
unwind_plan.SetUnwindPlanValidAtAllInstructions (eLazyBoolYes);
return true;
}
bool
EmulateInstruction::CreateFunctionEntryUnwind (UnwindPlan &unwind_plan)
{
unwind_plan.Clear();
return false;
}