bool RegisterContextCorePOSIX_powerpc::ReadRegister(
const RegisterInfo *reg_info, RegisterValue &value) {
lldb::offset_t offset = reg_info->byte_offset;
if (IsFPR(reg_info->kinds[lldb::eRegisterKindLLDB])) {
uint64_t v = m_fpr.GetMaxU64(&offset, reg_info->byte_size);
if (offset == reg_info->byte_offset + reg_info->byte_size) {
value = v;
return true;
}
} else if (IsVMX(reg_info->kinds[lldb::eRegisterKindLLDB])) {
uint32_t v[4];
offset = m_vec.CopyData(offset, reg_info->byte_size, &v);
if (offset == reg_info->byte_size) {
value.SetBytes(v, reg_info->byte_size, m_vec.GetByteOrder());
return true;
}
} else {
uint64_t v = m_gpr.GetMaxU64(&offset, reg_info->byte_size);
if (offset == reg_info->byte_offset + reg_info->byte_size) {
if (reg_info->byte_size < sizeof(v))
value = (uint32_t)v;
else
value = v;
return true;
}
}
return false;
}
bool
RegisterContextCorePOSIX_mips64::ReadRegister(const RegisterInfo *reg_info, RegisterValue &value)
{
const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB];
lldb::offset_t offset = reg_info->byte_offset;
if (reg == syn_pc_mips64)
{
// Synthetic PC is the sum of:
// (a) GP reg PC
assert(reg_info->kinds[lldb::eRegisterKindGeneric] == LLDB_REGNUM_GENERIC_PC);
const RegisterInfo *pc_reg_info = GetRegisterInfoAtIndex(gpr_pc_mips64);
RegisterValue reg_value;
if (!ReadRegister(pc_reg_info, reg_value))
return false;
uint64_t v = reg_value.GetAsUInt64();
// (b) Cap reg PCC base
const RegisterInfo *pcc_reg_info = GetRegisterInfoAtIndex(cap_pcc_mips64);
assert(pcc_reg_info->byte_size == 32);
offset = pcc_reg_info->byte_offset + 16;
uint64_t pcc_base = m_cr.GetMaxU64(&offset, 8);
if (offset == pcc_reg_info->byte_offset + 24)
v += pcc_base;
// (c) Offset if Cause indicates exception occurred in branch delay slot
if (m_in_bd == lldb_private::eLazyBoolCalculate)
m_in_bd = CauseBD() ? lldb_private::eLazyBoolYes : lldb_private::eLazyBoolNo;
if (m_in_bd == lldb_private::eLazyBoolYes)
v += 4;
value = v;
return true;
}
else if (reg <= gpr_dummy_mips64)
{
uint64_t v = m_gpr.GetMaxU64(&offset, reg_info->byte_size);
if (offset == reg_info->byte_offset + reg_info->byte_size)
{
value = v;
return true;
}
}
else
{
uint8_t buf[32];
assert(reg_info->byte_size == 32);
if (m_cr.CopyData(offset, 32, buf) == reg_info->byte_size)
{
value.SetBytes(buf, 32, m_cr.GetByteOrder());
return true;
}
}
return false;
}
Error
NativeRegisterContextLinux_mips64::DoReadRegisterValue(uint32_t offset,
const char* reg_name,
uint32_t size,
RegisterValue &value)
{
GPR_linux_mips regs;
::memset(®s, 0, sizeof(GPR_linux_mips));
// Clear all bits in RegisterValue before writing actual value read from ptrace to avoid garbage value in 32-bit MSB
value.SetBytes((void *)(((unsigned char *)®s) + offset), 8, GetByteOrder());
Error error = NativeProcessLinux::PtraceWrapper(PTRACE_GETREGS, m_thread.GetID(), NULL, ®s, sizeof regs);
if (error.Success())
{
lldb_private::ArchSpec arch;
if (m_thread.GetProcess()->GetArchitecture(arch))
value.SetBytes((void *)(((unsigned char *)®s) + offset + 4 * (arch.GetMachine() == llvm::Triple::mips)), arch.GetFlags() & lldb_private::ArchSpec::eMIPSABI_O32 ? 4 : 8, arch.GetByteOrder());
else
error.SetErrorString("failed to get architecture");
}
return error;
}
Error
NativeRegisterContextLinux_mips64::DoReadRegisterValue(uint32_t offset,
const char* reg_name,
uint32_t size,
RegisterValue &value)
{
GPR_linux_mips regs;
::memset(®s, 0, sizeof(GPR_linux_mips));
Error error = NativeProcessLinux::PtraceWrapper(PTRACE_GETREGS, m_thread.GetID(), NULL, ®s, sizeof regs);
if (error.Success())
{
lldb_private::ArchSpec arch;
if (m_thread.GetProcess()->GetArchitecture(arch))
value.SetBytes((void *)(((unsigned char *)®s) + offset + 4 * (arch.GetMachine() == llvm::Triple::mips)), arch.GetAddressByteSize(), arch.GetByteOrder());
else
error.SetErrorString("failed to get architecture");
}
return error;
}
bool
RegisterContextPOSIXProcessMonitor_x86_64::ReadRegister(const RegisterInfo *reg_info, RegisterValue &value)
{
if (!reg_info)
return false;
const uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
if (IsFPR(reg, GetFPRType()))
{
if (!ReadFPR())
return false;
}
else
{
bool success = ReadRegister(reg, value);
// If an i386 register should be parsed from an x86_64 register...
if (success && reg >= k_first_i386 && reg <= k_last_i386)
if (value.GetByteSize() > reg_info->byte_size)
value.SetType(reg_info); // ...use the type specified by reg_info rather than the uint64_t default
return success;
}
if (reg_info->encoding == eEncodingVector)
{
ByteOrder byte_order = GetByteOrder();
if (byte_order != ByteOrder::eByteOrderInvalid)
{
if (reg >= fpu_stmm0 && reg <= fpu_stmm7)
value.SetBytes(m_fpr.xstate.fxsave.stmm[reg - fpu_stmm0].bytes, reg_info->byte_size, byte_order);
if (reg >= fpu_xmm0 && reg <= fpu_xmm15)
value.SetBytes(m_fpr.xstate.fxsave.xmm[reg - fpu_xmm0].bytes, reg_info->byte_size, byte_order);
if (reg >= fpu_ymm0 && reg <= fpu_ymm15)
{
// Concatenate ymm using the register halves in xmm.bytes and ymmh.bytes
if (GetFPRType() == eXSAVE && CopyXSTATEtoYMM(reg, byte_order))
value.SetBytes(m_ymm_set.ymm[reg - fpu_ymm0].bytes, reg_info->byte_size, byte_order);
else
return false;
}
return value.GetType() == RegisterValue::eTypeBytes;
}
return false;
}
// Note that lldb uses slightly different naming conventions from sys/user.h
switch (reg)
{
default:
return false;
case fpu_dp:
value = m_fpr.xstate.fxsave.dp;
break;
case fpu_fcw:
value = m_fpr.xstate.fxsave.fcw;
break;
case fpu_fsw:
value = m_fpr.xstate.fxsave.fsw;
break;
case fpu_ip:
value = m_fpr.xstate.fxsave.ip;
break;
case fpu_fop:
value = m_fpr.xstate.fxsave.fop;
break;
case fpu_ftw:
value = m_fpr.xstate.fxsave.ftw;
break;
case fpu_mxcsr:
value = m_fpr.xstate.fxsave.mxcsr;
break;
case fpu_mxcsrmask:
value = m_fpr.xstate.fxsave.mxcsrmask;
break;
}
return true;
}
bool RegisterContextDarwin_arm64::ReadRegister(const RegisterInfo *reg_info,
RegisterValue &value) {
const uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
int set = RegisterContextDarwin_arm64::GetSetForNativeRegNum(reg);
if (set == -1)
return false;
if (ReadRegisterSet(set, false) != KERN_SUCCESS)
return false;
switch (reg) {
case gpr_x0:
case gpr_x1:
case gpr_x2:
case gpr_x3:
case gpr_x4:
case gpr_x5:
case gpr_x6:
case gpr_x7:
case gpr_x8:
case gpr_x9:
case gpr_x10:
case gpr_x11:
case gpr_x12:
case gpr_x13:
case gpr_x14:
case gpr_x15:
case gpr_x16:
case gpr_x17:
case gpr_x18:
case gpr_x19:
case gpr_x20:
case gpr_x21:
case gpr_x22:
case gpr_x23:
case gpr_x24:
case gpr_x25:
case gpr_x26:
case gpr_x27:
case gpr_x28:
case gpr_fp:
case gpr_sp:
case gpr_lr:
case gpr_pc:
case gpr_cpsr:
value.SetUInt64(gpr.x[reg - gpr_x0]);
break;
case gpr_w0:
case gpr_w1:
case gpr_w2:
case gpr_w3:
case gpr_w4:
case gpr_w5:
case gpr_w6:
case gpr_w7:
case gpr_w8:
case gpr_w9:
case gpr_w10:
case gpr_w11:
case gpr_w12:
case gpr_w13:
case gpr_w14:
case gpr_w15:
case gpr_w16:
case gpr_w17:
case gpr_w18:
case gpr_w19:
case gpr_w20:
case gpr_w21:
case gpr_w22:
case gpr_w23:
case gpr_w24:
case gpr_w25:
case gpr_w26:
case gpr_w27:
case gpr_w28: {
ProcessSP process_sp(m_thread.GetProcess());
if (process_sp.get()) {
DataExtractor regdata(&gpr.x[reg - gpr_w0], 8, process_sp->GetByteOrder(),
process_sp->GetAddressByteSize());
offset_t offset = 0;
uint64_t retval = regdata.GetMaxU64(&offset, 8);
uint32_t retval_lower32 = static_cast<uint32_t>(retval & 0xffffffff);
value.SetUInt32(retval_lower32);
}
} break;
case fpu_v0:
case fpu_v1:
case fpu_v2:
case fpu_v3:
case fpu_v4:
case fpu_v5:
case fpu_v6:
case fpu_v7:
case fpu_v8:
case fpu_v9:
case fpu_v10:
case fpu_v11:
case fpu_v12:
case fpu_v13:
case fpu_v14:
case fpu_v15:
case fpu_v16:
case fpu_v17:
case fpu_v18:
case fpu_v19:
case fpu_v20:
case fpu_v21:
case fpu_v22:
case fpu_v23:
case fpu_v24:
case fpu_v25:
case fpu_v26:
case fpu_v27:
case fpu_v28:
case fpu_v29:
case fpu_v30:
case fpu_v31:
value.SetBytes(fpu.v[reg].bytes, reg_info->byte_size,
endian::InlHostByteOrder());
break;
case fpu_s0:
case fpu_s1:
case fpu_s2:
case fpu_s3:
case fpu_s4:
case fpu_s5:
case fpu_s6:
case fpu_s7:
case fpu_s8:
case fpu_s9:
case fpu_s10:
case fpu_s11:
case fpu_s12:
case fpu_s13:
case fpu_s14:
case fpu_s15:
case fpu_s16:
case fpu_s17:
case fpu_s18:
case fpu_s19:
case fpu_s20:
case fpu_s21:
case fpu_s22:
case fpu_s23:
case fpu_s24:
case fpu_s25:
case fpu_s26:
case fpu_s27:
case fpu_s28:
case fpu_s29:
case fpu_s30:
case fpu_s31: {
ProcessSP process_sp(m_thread.GetProcess());
if (process_sp.get()) {
DataExtractor regdata(&fpu.v[reg - fpu_s0], 4, process_sp->GetByteOrder(),
process_sp->GetAddressByteSize());
offset_t offset = 0;
value.SetFloat(regdata.GetFloat(&offset));
}
} break;
case fpu_d0:
case fpu_d1:
case fpu_d2:
case fpu_d3:
case fpu_d4:
case fpu_d5:
case fpu_d6:
case fpu_d7:
case fpu_d8:
case fpu_d9:
case fpu_d10:
case fpu_d11:
case fpu_d12:
case fpu_d13:
case fpu_d14:
case fpu_d15:
case fpu_d16:
case fpu_d17:
case fpu_d18:
case fpu_d19:
case fpu_d20:
case fpu_d21:
case fpu_d22:
case fpu_d23:
case fpu_d24:
case fpu_d25:
case fpu_d26:
case fpu_d27:
case fpu_d28:
case fpu_d29:
case fpu_d30:
case fpu_d31: {
ProcessSP process_sp(m_thread.GetProcess());
if (process_sp.get()) {
DataExtractor regdata(&fpu.v[reg - fpu_s0], 8, process_sp->GetByteOrder(),
process_sp->GetAddressByteSize());
offset_t offset = 0;
value.SetDouble(regdata.GetDouble(&offset));
}
} break;
case fpu_fpsr:
value.SetUInt32(fpu.fpsr);
break;
case fpu_fpcr:
value.SetUInt32(fpu.fpcr);
break;
case exc_exception:
value.SetUInt32(exc.exception);
break;
case exc_esr:
value.SetUInt32(exc.esr);
break;
case exc_far:
value.SetUInt64(exc.far);
break;
default:
value.SetValueToInvalid();
return false;
}
return true;
}
bool
RegisterContextDarwin_arm64::ReadRegister (const RegisterInfo *reg_info, RegisterValue &value)
{
const uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
int set = RegisterContextDarwin_arm64::GetSetForNativeRegNum (reg);
if (set == -1)
return false;
if (ReadRegisterSet(set, false) != KERN_SUCCESS)
return false;
switch (reg)
{
case gpr_x0:
case gpr_x1:
case gpr_x2:
case gpr_x3:
case gpr_x4:
case gpr_x5:
case gpr_x6:
case gpr_x7:
case gpr_x8:
case gpr_x9:
case gpr_x10:
case gpr_x11:
case gpr_x12:
case gpr_x13:
case gpr_x14:
case gpr_x15:
case gpr_x16:
case gpr_x17:
case gpr_x18:
case gpr_x19:
case gpr_x20:
case gpr_x21:
case gpr_x22:
case gpr_x23:
case gpr_x24:
case gpr_x25:
case gpr_x26:
case gpr_x27:
case gpr_x28:
case gpr_fp:
case gpr_sp:
case gpr_lr:
case gpr_pc:
case gpr_cpsr:
value.SetUInt64 (gpr.x[reg - gpr_x0]);
break;
case fpu_v0:
case fpu_v1:
case fpu_v2:
case fpu_v3:
case fpu_v4:
case fpu_v5:
case fpu_v6:
case fpu_v7:
case fpu_v8:
case fpu_v9:
case fpu_v10:
case fpu_v11:
case fpu_v12:
case fpu_v13:
case fpu_v14:
case fpu_v15:
case fpu_v16:
case fpu_v17:
case fpu_v18:
case fpu_v19:
case fpu_v20:
case fpu_v21:
case fpu_v22:
case fpu_v23:
case fpu_v24:
case fpu_v25:
case fpu_v26:
case fpu_v27:
case fpu_v28:
case fpu_v29:
case fpu_v30:
case fpu_v31:
value.SetBytes(fpu.v[reg].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
break;
case fpu_fpsr:
value.SetUInt32 (fpu.fpsr);
break;
case fpu_fpcr:
value.SetUInt32 (fpu.fpcr);
break;
case exc_exception:
value.SetUInt32 (exc.exception);
break;
case exc_esr:
value.SetUInt32 (exc.esr);
break;
case exc_far:
value.SetUInt64 (exc.far);
break;
default:
value.SetValueToInvalid();
return false;
}
return true;
}
lldb_private::Error
NativeRegisterContextLinux_mips64::ReadRegister (const RegisterInfo *reg_info, RegisterValue ®_value)
{
Error error;
if (!reg_info)
{
error.SetErrorString ("reg_info NULL");
return error;
}
const uint32_t reg = reg_info->kinds[lldb::eRegisterKindLLDB];
if (reg == LLDB_INVALID_REGNUM)
{
// This is likely an internal register for lldb use only and should not be directly queried.
error.SetErrorStringWithFormat ("register \"%s\" is an internal-only lldb register, cannot read directly", reg_info->name);
return error;
}
if (IsMSA(reg) && !IsMSAAvailable())
{
error.SetErrorString ("MSA not available on this processor");
return error;
}
if (IsMSA(reg) || IsFPR(reg))
{
uint8_t *src;
error = ReadCP1();
if (!error.Success())
{
error.SetErrorString ("failed to read co-processor 1 register");
return error;
}
if (IsFPR(reg))
{
assert (reg_info->byte_offset < sizeof(UserArea));
src = (uint8_t *)&m_fpr + reg_info->byte_offset - (sizeof(m_gpr));
}
else
{
assert (reg_info->byte_offset < sizeof(UserArea));
src = (uint8_t *)&m_msa + reg_info->byte_offset - (sizeof(m_gpr) + sizeof(m_fpr));
}
switch (reg_info->byte_size)
{
case 4:
reg_value.SetUInt32(*(uint32_t *)src);
break;
case 8:
reg_value.SetUInt64(*(uint64_t *)src);
break;
case 16:
reg_value.SetBytes((const void *)src, 16, GetByteOrder());
break;
default:
assert(false && "Unhandled data size.");
error.SetErrorStringWithFormat ("unhandled byte size: %" PRIu32, reg_info->byte_size);
break;
}
}
else
{
error = ReadRegisterRaw(reg, reg_value);
}
return error;
}
bool
RegisterContextDarwin_x86_64::ReadRegister (const RegisterInfo *reg_info,
RegisterValue &value)
{
const uint32_t reg = reg_info->kinds[eRegisterKindLLDB];
int set = RegisterContextDarwin_x86_64::GetSetForNativeRegNum (reg);
if (set == -1)
return false;
if (ReadRegisterSet(set, false) != 0)
return false;
switch (reg)
{
case gpr_rax:
case gpr_rbx:
case gpr_rcx:
case gpr_rdx:
case gpr_rdi:
case gpr_rsi:
case gpr_rbp:
case gpr_rsp:
case gpr_r8:
case gpr_r9:
case gpr_r10:
case gpr_r11:
case gpr_r12:
case gpr_r13:
case gpr_r14:
case gpr_r15:
case gpr_rip:
case gpr_rflags:
case gpr_cs:
case gpr_fs:
case gpr_gs:
value = (&gpr.rax)[reg - gpr_rax];
break;
case fpu_fcw:
value = fpu.fcw;
break;
case fpu_fsw:
value = fpu.fsw;
break;
case fpu_ftw:
value = fpu.ftw;
break;
case fpu_fop:
value = fpu.fop;
break;
case fpu_ip:
value = fpu.ip;
break;
case fpu_cs:
value = fpu.cs;
break;
case fpu_dp:
value = fpu.dp;
break;
case fpu_ds:
value = fpu.ds;
break;
case fpu_mxcsr:
value = fpu.mxcsr;
break;
case fpu_mxcsrmask:
value = fpu.mxcsrmask;
break;
case fpu_stmm0:
case fpu_stmm1:
case fpu_stmm2:
case fpu_stmm3:
case fpu_stmm4:
case fpu_stmm5:
case fpu_stmm6:
case fpu_stmm7:
value.SetBytes(fpu.stmm[reg - fpu_stmm0].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
break;
case fpu_xmm0:
case fpu_xmm1:
case fpu_xmm2:
case fpu_xmm3:
case fpu_xmm4:
case fpu_xmm5:
case fpu_xmm6:
case fpu_xmm7:
case fpu_xmm8:
case fpu_xmm9:
case fpu_xmm10:
case fpu_xmm11:
case fpu_xmm12:
case fpu_xmm13:
case fpu_xmm14:
case fpu_xmm15:
value.SetBytes(fpu.xmm[reg - fpu_xmm0].bytes, reg_info->byte_size, lldb::endian::InlHostByteOrder());
break;
case exc_trapno:
value = exc.trapno;
break;
case exc_err:
value = exc.err;
break;
case exc_faultvaddr:
value = exc.faultvaddr;
break;
default:
return false;
}
return true;
}
