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Diffstat (limited to 'source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp')
-rw-r--r--source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp483
1 files changed, 483 insertions, 0 deletions
diff --git a/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp b/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp
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index 000000000000..76e64ac48d66
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+++ b/source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp
@@ -0,0 +1,483 @@
+//===-- NativeRegisterContextNetBSD_x86_64.cpp ---------------*- C++ -*-===//
+//
+// The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+#if defined(__x86_64__)
+
+#include "NativeRegisterContextNetBSD_x86_64.h"
+
+#include "lldb/Core/RegisterValue.h"
+#include "lldb/Host/HostInfo.h"
+#include "lldb/Utility/DataBufferHeap.h"
+#include "lldb/Utility/Error.h"
+#include "lldb/Utility/Log.h"
+
+#include "Plugins/Process/Utility/RegisterContextNetBSD_x86_64.h"
+
+#include <elf.h>
+
+using namespace lldb_private;
+using namespace lldb_private::process_netbsd;
+
+// ----------------------------------------------------------------------------
+// Private namespace.
+// ----------------------------------------------------------------------------
+
+namespace {
+// x86 64-bit general purpose registers.
+static const uint32_t g_gpr_regnums_x86_64[] = {
+ lldb_rax_x86_64, lldb_rbx_x86_64, lldb_rcx_x86_64, lldb_rdx_x86_64,
+ lldb_rdi_x86_64, lldb_rsi_x86_64, lldb_rbp_x86_64, lldb_rsp_x86_64,
+ lldb_r8_x86_64, lldb_r9_x86_64, lldb_r10_x86_64, lldb_r11_x86_64,
+ lldb_r12_x86_64, lldb_r13_x86_64, lldb_r14_x86_64, lldb_r15_x86_64,
+ lldb_rip_x86_64, lldb_rflags_x86_64, lldb_cs_x86_64, lldb_fs_x86_64,
+ lldb_gs_x86_64, lldb_ss_x86_64, lldb_ds_x86_64, lldb_es_x86_64,
+ lldb_eax_x86_64, lldb_ebx_x86_64, lldb_ecx_x86_64, lldb_edx_x86_64,
+ lldb_edi_x86_64, lldb_esi_x86_64, lldb_ebp_x86_64, lldb_esp_x86_64,
+ lldb_r8d_x86_64, // Low 32 bits or r8
+ lldb_r9d_x86_64, // Low 32 bits or r9
+ lldb_r10d_x86_64, // Low 32 bits or r10
+ lldb_r11d_x86_64, // Low 32 bits or r11
+ lldb_r12d_x86_64, // Low 32 bits or r12
+ lldb_r13d_x86_64, // Low 32 bits or r13
+ lldb_r14d_x86_64, // Low 32 bits or r14
+ lldb_r15d_x86_64, // Low 32 bits or r15
+ lldb_ax_x86_64, lldb_bx_x86_64, lldb_cx_x86_64, lldb_dx_x86_64,
+ lldb_di_x86_64, lldb_si_x86_64, lldb_bp_x86_64, lldb_sp_x86_64,
+ lldb_r8w_x86_64, // Low 16 bits or r8
+ lldb_r9w_x86_64, // Low 16 bits or r9
+ lldb_r10w_x86_64, // Low 16 bits or r10
+ lldb_r11w_x86_64, // Low 16 bits or r11
+ lldb_r12w_x86_64, // Low 16 bits or r12
+ lldb_r13w_x86_64, // Low 16 bits or r13
+ lldb_r14w_x86_64, // Low 16 bits or r14
+ lldb_r15w_x86_64, // Low 16 bits or r15
+ lldb_ah_x86_64, lldb_bh_x86_64, lldb_ch_x86_64, lldb_dh_x86_64,
+ lldb_al_x86_64, lldb_bl_x86_64, lldb_cl_x86_64, lldb_dl_x86_64,
+ lldb_dil_x86_64, lldb_sil_x86_64, lldb_bpl_x86_64, lldb_spl_x86_64,
+ lldb_r8l_x86_64, // Low 8 bits or r8
+ lldb_r9l_x86_64, // Low 8 bits or r9
+ lldb_r10l_x86_64, // Low 8 bits or r10
+ lldb_r11l_x86_64, // Low 8 bits or r11
+ lldb_r12l_x86_64, // Low 8 bits or r12
+ lldb_r13l_x86_64, // Low 8 bits or r13
+ lldb_r14l_x86_64, // Low 8 bits or r14
+ lldb_r15l_x86_64, // Low 8 bits or r15
+ LLDB_INVALID_REGNUM // register sets need to end with this flag
+};
+static_assert((sizeof(g_gpr_regnums_x86_64) / sizeof(g_gpr_regnums_x86_64[0])) -
+ 1 ==
+ k_num_gpr_registers_x86_64,
+ "g_gpr_regnums_x86_64 has wrong number of register infos");
+
+// Number of register sets provided by this context.
+enum { k_num_extended_register_sets = 2, k_num_register_sets = 4 };
+
+// Register sets for x86 64-bit.
+static const RegisterSet g_reg_sets_x86_64[k_num_register_sets] = {
+ {"General Purpose Registers", "gpr", k_num_gpr_registers_x86_64,
+ g_gpr_regnums_x86_64},
+};
+
+#define REG_CONTEXT_SIZE (GetRegisterInfoInterface().GetGPRSize())
+
+} // namespace
+
+NativeRegisterContextNetBSD *
+NativeRegisterContextNetBSD::CreateHostNativeRegisterContextNetBSD(
+ const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
+ uint32_t concrete_frame_idx) {
+ return new NativeRegisterContextNetBSD_x86_64(target_arch, native_thread,
+ concrete_frame_idx);
+}
+
+// ----------------------------------------------------------------------------
+// NativeRegisterContextNetBSD_x86_64 members.
+// ----------------------------------------------------------------------------
+
+static RegisterInfoInterface *
+CreateRegisterInfoInterface(const ArchSpec &target_arch) {
+ assert((HostInfo::GetArchitecture().GetAddressByteSize() == 8) &&
+ "Register setting path assumes this is a 64-bit host");
+ // X86_64 hosts know how to work with 64-bit and 32-bit EXEs using the
+ // x86_64 register context.
+ return new RegisterContextNetBSD_x86_64(target_arch);
+}
+
+NativeRegisterContextNetBSD_x86_64::NativeRegisterContextNetBSD_x86_64(
+ const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
+ uint32_t concrete_frame_idx)
+ : NativeRegisterContextNetBSD(native_thread, concrete_frame_idx,
+ CreateRegisterInfoInterface(target_arch)),
+ m_gpr_x86_64() {}
+
+// CONSIDER after local and llgs debugging are merged, register set support can
+// be moved into a base x86-64 class with IsRegisterSetAvailable made virtual.
+uint32_t NativeRegisterContextNetBSD_x86_64::GetRegisterSetCount() const {
+ uint32_t sets = 0;
+ for (uint32_t set_index = 0; set_index < k_num_register_sets; ++set_index) {
+ if (GetSetForNativeRegNum(set_index) != -1)
+ ++sets;
+ }
+
+ return sets;
+}
+
+const RegisterSet *
+NativeRegisterContextNetBSD_x86_64::GetRegisterSet(uint32_t set_index) const {
+ switch (GetRegisterInfoInterface().GetTargetArchitecture().GetMachine()) {
+ case llvm::Triple::x86_64:
+ return &g_reg_sets_x86_64[set_index];
+ default:
+ assert(false && "Unhandled target architecture.");
+ return nullptr;
+ }
+
+ return nullptr;
+}
+
+int NativeRegisterContextNetBSD_x86_64::GetSetForNativeRegNum(
+ int reg_num) const {
+ if (reg_num < lldb_fctrl_x86_64)
+ return GPRegSet;
+ else
+ return -1;
+}
+
+int NativeRegisterContextNetBSD_x86_64::ReadRegisterSet(uint32_t set) {
+ switch (set) {
+ case GPRegSet:
+ ReadGPR();
+ return 0;
+ case FPRegSet:
+ ReadFPR();
+ return 0;
+ default:
+ break;
+ }
+ return -1;
+}
+int NativeRegisterContextNetBSD_x86_64::WriteRegisterSet(uint32_t set) {
+ switch (set) {
+ case GPRegSet:
+ WriteGPR();
+ return 0;
+ case FPRegSet:
+ WriteFPR();
+ return 0;
+ default:
+ break;
+ }
+ return -1;
+}
+
+Error NativeRegisterContextNetBSD_x86_64::ReadRegister(
+ const RegisterInfo *reg_info, RegisterValue &reg_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;
+ }
+
+ int set = GetSetForNativeRegNum(reg);
+ if (set == -1) {
+ // This is likely an internal register for lldb use only and should not be
+ // directly queried.
+ error.SetErrorStringWithFormat("register \"%s\" is in unrecognized set",
+ reg_info->name);
+ return error;
+ }
+
+ if (ReadRegisterSet(set) != 0) {
+ // This is likely an internal register for lldb use only and should not be
+ // directly queried.
+ error.SetErrorStringWithFormat(
+ "reading register set for register \"%s\" failed", reg_info->name);
+ return error;
+ }
+
+ switch (reg) {
+ case lldb_rax_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RAX];
+ break;
+ case lldb_rbx_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RBX];
+ break;
+ case lldb_rcx_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RCX];
+ break;
+ case lldb_rdx_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RDX];
+ break;
+ case lldb_rdi_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RDI];
+ break;
+ case lldb_rsi_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RSI];
+ break;
+ case lldb_rbp_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RBP];
+ break;
+ case lldb_rsp_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RSP];
+ break;
+ case lldb_r8_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R8];
+ break;
+ case lldb_r9_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R9];
+ break;
+ case lldb_r10_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R10];
+ break;
+ case lldb_r11_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R11];
+ break;
+ case lldb_r12_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R12];
+ break;
+ case lldb_r13_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R13];
+ break;
+ case lldb_r14_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R14];
+ break;
+ case lldb_r15_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_R15];
+ break;
+ case lldb_rip_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RIP];
+ break;
+ case lldb_rflags_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_RFLAGS];
+ break;
+ case lldb_cs_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_CS];
+ break;
+ case lldb_fs_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_FS];
+ break;
+ case lldb_gs_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_GS];
+ break;
+ case lldb_ss_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_SS];
+ break;
+ case lldb_ds_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_DS];
+ break;
+ case lldb_es_x86_64:
+ reg_value = (uint64_t)m_gpr_x86_64.regs[_REG_ES];
+ break;
+ }
+
+ return error;
+}
+
+Error NativeRegisterContextNetBSD_x86_64::WriteRegister(
+ const RegisterInfo *reg_info, const RegisterValue &reg_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;
+ }
+
+ int set = GetSetForNativeRegNum(reg);
+ if (set == -1) {
+ // This is likely an internal register for lldb use only and should not be
+ // directly queried.
+ error.SetErrorStringWithFormat("register \"%s\" is in unrecognized set",
+ reg_info->name);
+ return error;
+ }
+
+ if (ReadRegisterSet(set) != 0) {
+ // This is likely an internal register for lldb use only and should not be
+ // directly queried.
+ error.SetErrorStringWithFormat(
+ "reading register set for register \"%s\" failed", reg_info->name);
+ return error;
+ }
+
+ switch (reg) {
+ case lldb_rax_x86_64:
+ m_gpr_x86_64.regs[_REG_RAX] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rbx_x86_64:
+ m_gpr_x86_64.regs[_REG_RBX] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rcx_x86_64:
+ m_gpr_x86_64.regs[_REG_RCX] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rdx_x86_64:
+ m_gpr_x86_64.regs[_REG_RDX] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rdi_x86_64:
+ m_gpr_x86_64.regs[_REG_RDI] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rsi_x86_64:
+ m_gpr_x86_64.regs[_REG_RSI] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rbp_x86_64:
+ m_gpr_x86_64.regs[_REG_RBP] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rsp_x86_64:
+ m_gpr_x86_64.regs[_REG_RSP] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r8_x86_64:
+ m_gpr_x86_64.regs[_REG_R8] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r9_x86_64:
+ m_gpr_x86_64.regs[_REG_R9] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r10_x86_64:
+ m_gpr_x86_64.regs[_REG_R10] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r11_x86_64:
+ m_gpr_x86_64.regs[_REG_R11] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r12_x86_64:
+ m_gpr_x86_64.regs[_REG_R12] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r13_x86_64:
+ m_gpr_x86_64.regs[_REG_R13] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r14_x86_64:
+ m_gpr_x86_64.regs[_REG_R14] = reg_value.GetAsUInt64();
+ break;
+ case lldb_r15_x86_64:
+ m_gpr_x86_64.regs[_REG_R15] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rip_x86_64:
+ m_gpr_x86_64.regs[_REG_RIP] = reg_value.GetAsUInt64();
+ break;
+ case lldb_rflags_x86_64:
+ m_gpr_x86_64.regs[_REG_RFLAGS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_cs_x86_64:
+ m_gpr_x86_64.regs[_REG_CS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_fs_x86_64:
+ m_gpr_x86_64.regs[_REG_FS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_gs_x86_64:
+ m_gpr_x86_64.regs[_REG_GS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_ss_x86_64:
+ m_gpr_x86_64.regs[_REG_SS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_ds_x86_64:
+ m_gpr_x86_64.regs[_REG_DS] = reg_value.GetAsUInt64();
+ break;
+ case lldb_es_x86_64:
+ m_gpr_x86_64.regs[_REG_ES] = reg_value.GetAsUInt64();
+ break;
+ }
+
+ if (WriteRegisterSet(set) != 0)
+ error.SetErrorStringWithFormat("failed to write register set");
+
+ return error;
+}
+
+Error NativeRegisterContextNetBSD_x86_64::ReadAllRegisterValues(
+ lldb::DataBufferSP &data_sp) {
+ Error error;
+
+ data_sp.reset(new DataBufferHeap(REG_CONTEXT_SIZE, 0));
+ if (!data_sp) {
+ error.SetErrorStringWithFormat(
+ "failed to allocate DataBufferHeap instance of size %" PRIu64,
+ REG_CONTEXT_SIZE);
+ return error;
+ }
+
+ error = ReadGPR();
+ if (error.Fail())
+ return error;
+
+ uint8_t *dst = data_sp->GetBytes();
+ if (dst == nullptr) {
+ error.SetErrorStringWithFormat("DataBufferHeap instance of size %" PRIu64
+ " returned a null pointer",
+ REG_CONTEXT_SIZE);
+ return error;
+ }
+
+ ::memcpy(dst, &m_gpr_x86_64, GetRegisterInfoInterface().GetGPRSize());
+ dst += GetRegisterInfoInterface().GetGPRSize();
+
+ RegisterValue value((uint64_t)-1);
+ const RegisterInfo *reg_info =
+ GetRegisterInfoInterface().GetDynamicRegisterInfo("orig_eax");
+ if (reg_info == nullptr)
+ reg_info = GetRegisterInfoInterface().GetDynamicRegisterInfo("orig_rax");
+ return error;
+}
+
+Error NativeRegisterContextNetBSD_x86_64::WriteAllRegisterValues(
+ const lldb::DataBufferSP &data_sp) {
+ Error error;
+
+ if (!data_sp) {
+ error.SetErrorStringWithFormat(
+ "NativeRegisterContextNetBSD_x86_64::%s invalid data_sp provided",
+ __FUNCTION__);
+ return error;
+ }
+
+ if (data_sp->GetByteSize() != REG_CONTEXT_SIZE) {
+ error.SetErrorStringWithFormat(
+ "NativeRegisterContextNetBSD_x86_64::%s data_sp contained mismatched "
+ "data size, expected %" PRIu64 ", actual %" PRIu64,
+ __FUNCTION__, REG_CONTEXT_SIZE, data_sp->GetByteSize());
+ return error;
+ }
+
+ uint8_t *src = data_sp->GetBytes();
+ if (src == nullptr) {
+ error.SetErrorStringWithFormat("NativeRegisterContextNetBSD_x86_64::%s "
+ "DataBuffer::GetBytes() returned a null "
+ "pointer",
+ __FUNCTION__);
+ return error;
+ }
+ ::memcpy(&m_gpr_x86_64, src, GetRegisterInfoInterface().GetGPRSize());
+
+ error = WriteGPR();
+ if (error.Fail())
+ return error;
+ src += GetRegisterInfoInterface().GetGPRSize();
+
+ return error;
+}
+
+#endif // defined(__x86_64__)