pkgsrc-WIP-changes archive
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
lldb-netbsd: Import pristine Linux NativeRegisterContext for x86_64
Module Name: pkgsrc-wip
Committed By: Kamil Rytarowski <n54%gmx.com@localhost>
Pushed By: kamil
Date: Wed Mar 1 12:05:11 2017 +0100
Changeset: 63dc66dbf404bf10f08ad4c538ebb44d95e800fe
Modified Files:
lldb-netbsd/distinfo
Added Files:
lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.cpp
lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.h
lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.cpp
lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.h
Log Message:
lldb-netbsd: Import pristine Linux NativeRegisterContext for x86_64
Added files:
- NativeRegisterContextNetBSD.cpp
- NativeRegisterContextNetBSD.h
- NativeRegisterContextNetBSD__x86__64.cpp
- NativeRegisterContextNetBSD__x86__64.h
Sponsored by <The NetBSD Foundation>
To see a diff of this commit:
https://wip.pkgsrc.org/cgi-bin/gitweb.cgi?p=pkgsrc-wip.git;a=commitdiff;h=63dc66dbf404bf10f08ad4c538ebb44d95e800fe
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
diffstat:
lldb-netbsd/distinfo | 4 +
..._Process_NetBSD_NativeRegisterContextNetBSD.cpp | 212 ++++
...ns_Process_NetBSD_NativeRegisterContextNetBSD.h | 97 ++
...NetBSD_NativeRegisterContextNetBSD__x86__64.cpp | 1226 ++++++++++++++++++++
...s_NetBSD_NativeRegisterContextNetBSD__x86__64.h | 151 +++
5 files changed, 1690 insertions(+)
diffs:
diff --git a/lldb-netbsd/distinfo b/lldb-netbsd/distinfo
index 26a79b3248..a9feb7f1cc 100644
--- a/lldb-netbsd/distinfo
+++ b/lldb-netbsd/distinfo
@@ -25,6 +25,10 @@ SHA1 (patch-source_Plugins_Process_CMakeLists.txt) = c689ff4ec455234f8d506dc9eb8
SHA1 (patch-source_Plugins_Process_NetBSD_CMakeLists.txt) = 483584dad2dba01dccd065435a5d75eedf11b3c6
SHA1 (patch-source_Plugins_Process_NetBSD_NativeProcessNetBSD.cpp) = 037094d3eaa832eaf2b3719833d2d3c46101e03e
SHA1 (patch-source_Plugins_Process_NetBSD_NativeProcessNetBSD.h) = c48bb2dd45682164ab904b8b3f7664b91ac35d5b
+SHA1 (patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.cpp) = a59b9bf76d07eb9d36915dbc9f3cafbbab8779fc
+SHA1 (patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.h) = 7784c1674775123e3f524c88a223886c9e429160
+SHA1 (patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.cpp) = d871e14bd91acb7bb0301130a4e60d264ae2a09a
+SHA1 (patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.h) = 350960270bbb0902d1cb0c78d2e2e8a9d30d40a0
SHA1 (patch-source_Plugins_Process_NetBSD_NativeThreadNetBSD.cpp) = 0985eaefb605c06185cc14fa1c02c0b9f8318472
SHA1 (patch-source_Plugins_Process_NetBSD_NativeThreadNetBSD.h) = c675af8495a75f99bb60cb4ab3fa36223f1cb6f4
SHA1 (patch-tools_lldb-server_CMakeLists.txt) = 9804b083a1aa0cb7fa06b840a71c28424ad8e01d
diff --git a/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.cpp b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.cpp
new file mode 100644
index 0000000000..f15ec19fbd
--- /dev/null
+++ b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.cpp
@@ -0,0 +1,212 @@
+$NetBSD$
+
+--- source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp.orig 2017-03-01 11:04:39.184136620 +0000
++++ source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.cpp
+@@ -0,0 +1,207 @@
++//===-- NativeRegisterContextLinux.cpp --------------------------*- C++ -*-===//
++//
++// The LLVM Compiler Infrastructure
++//
++// This file is distributed under the University of Illinois Open Source
++// License. See LICENSE.TXT for details.
++//
++//===----------------------------------------------------------------------===//
++
++#include "NativeRegisterContextLinux.h"
++
++#include "lldb/Core/RegisterValue.h"
++#include "lldb/Host/common/NativeProcessProtocol.h"
++#include "lldb/Host/common/NativeThreadProtocol.h"
++#include "lldb/Host/linux/Ptrace.h"
++
++#include "Plugins/Process/POSIX/ProcessPOSIXLog.h"
++
++using namespace lldb_private;
++using namespace lldb_private::process_linux;
++
++NativeRegisterContextLinux::NativeRegisterContextLinux(
++ NativeThreadProtocol &native_thread, uint32_t concrete_frame_idx,
++ RegisterInfoInterface *reg_info_interface_p)
++ : NativeRegisterContextRegisterInfo(native_thread, concrete_frame_idx,
++ reg_info_interface_p) {}
++
++lldb::ByteOrder NativeRegisterContextLinux::GetByteOrder() const {
++ // Get the target process whose privileged thread was used for the register
++ // read.
++ lldb::ByteOrder byte_order = lldb::eByteOrderInvalid;
++
++ NativeProcessProtocolSP process_sp(m_thread.GetProcess());
++ if (!process_sp)
++ return byte_order;
++
++ if (!process_sp->GetByteOrder(byte_order)) {
++ // FIXME log here
++ }
++
++ return byte_order;
++}
++
++Error NativeRegisterContextLinux::ReadRegisterRaw(uint32_t reg_index,
++ RegisterValue ®_value) {
++ const RegisterInfo *const reg_info = GetRegisterInfoAtIndex(reg_index);
++ if (!reg_info)
++ return Error("register %" PRIu32 " not found", reg_index);
++
++ return DoReadRegisterValue(reg_info->byte_offset, reg_info->name,
++ reg_info->byte_size, reg_value);
++}
++
++Error NativeRegisterContextLinux::WriteRegisterRaw(
++ uint32_t reg_index, const RegisterValue ®_value) {
++ uint32_t reg_to_write = reg_index;
++ RegisterValue value_to_write = reg_value;
++
++ // Check if this is a subregister of a full register.
++ const RegisterInfo *reg_info = GetRegisterInfoAtIndex(reg_index);
++ if (reg_info->invalidate_regs &&
++ (reg_info->invalidate_regs[0] != LLDB_INVALID_REGNUM)) {
++ Error error;
++
++ RegisterValue full_value;
++ uint32_t full_reg = reg_info->invalidate_regs[0];
++ const RegisterInfo *full_reg_info = GetRegisterInfoAtIndex(full_reg);
++
++ // Read the full register.
++ error = ReadRegister(full_reg_info, full_value);
++ if (error.Fail())
++ return error;
++
++ lldb::ByteOrder byte_order = GetByteOrder();
++ uint8_t dst[RegisterValue::kMaxRegisterByteSize];
++
++ // Get the bytes for the full register.
++ const uint32_t dest_size = full_value.GetAsMemoryData(
++ full_reg_info, dst, sizeof(dst), byte_order, error);
++ if (error.Success() && dest_size) {
++ uint8_t src[RegisterValue::kMaxRegisterByteSize];
++
++ // Get the bytes for the source data.
++ const uint32_t src_size = reg_value.GetAsMemoryData(
++ reg_info, src, sizeof(src), byte_order, error);
++ if (error.Success() && src_size && (src_size < dest_size)) {
++ // Copy the src bytes to the destination.
++ memcpy(dst + (reg_info->byte_offset & 0x1), src, src_size);
++ // Set this full register as the value to write.
++ value_to_write.SetBytes(dst, full_value.GetByteSize(), byte_order);
++ value_to_write.SetType(full_reg_info);
++ reg_to_write = full_reg;
++ }
++ }
++ }
++
++ const RegisterInfo *const register_to_write_info_p =
++ GetRegisterInfoAtIndex(reg_to_write);
++ assert(register_to_write_info_p &&
++ "register to write does not have valid RegisterInfo");
++ if (!register_to_write_info_p)
++ return Error("NativeRegisterContextLinux::%s failed to get RegisterInfo "
++ "for write register index %" PRIu32,
++ __FUNCTION__, reg_to_write);
++
++ return DoWriteRegisterValue(reg_info->byte_offset, reg_info->name, reg_value);
++}
++
++Error NativeRegisterContextLinux::ReadGPR() {
++ void *buf = GetGPRBuffer();
++ if (!buf)
++ return Error("GPR buffer is NULL");
++ size_t buf_size = GetGPRSize();
++
++ return DoReadGPR(buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::WriteGPR() {
++ void *buf = GetGPRBuffer();
++ if (!buf)
++ return Error("GPR buffer is NULL");
++ size_t buf_size = GetGPRSize();
++
++ return DoWriteGPR(buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::ReadFPR() {
++ void *buf = GetFPRBuffer();
++ if (!buf)
++ return Error("FPR buffer is NULL");
++ size_t buf_size = GetFPRSize();
++
++ return DoReadFPR(buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::WriteFPR() {
++ void *buf = GetFPRBuffer();
++ if (!buf)
++ return Error("FPR buffer is NULL");
++ size_t buf_size = GetFPRSize();
++
++ return DoWriteFPR(buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::ReadRegisterSet(void *buf, size_t buf_size,
++ unsigned int regset) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_GETREGSET, m_thread.GetID(),
++ static_cast<void *>(®set), buf,
++ buf_size);
++}
++
++Error NativeRegisterContextLinux::WriteRegisterSet(void *buf, size_t buf_size,
++ unsigned int regset) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_SETREGSET, m_thread.GetID(),
++ static_cast<void *>(®set), buf,
++ buf_size);
++}
++
++Error NativeRegisterContextLinux::DoReadRegisterValue(uint32_t offset,
++ const char *reg_name,
++ uint32_t size,
++ RegisterValue &value) {
++ Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_REGISTERS));
++
++ long data;
++ Error error = NativeProcessLinux::PtraceWrapper(
++ PTRACE_PEEKUSER, m_thread.GetID(), reinterpret_cast<void *>(offset),
++ nullptr, 0, &data);
++
++ if (error.Success())
++ // First cast to an unsigned of the same size to avoid sign extension.
++ value.SetUInt(static_cast<unsigned long>(data), size);
++
++ LLDB_LOG(log, "{0}: {1:x}", reg_name, data);
++ return error;
++}
++
++Error NativeRegisterContextLinux::DoWriteRegisterValue(
++ uint32_t offset, const char *reg_name, const RegisterValue &value) {
++ Log *log(ProcessPOSIXLog::GetLogIfAllCategoriesSet(POSIX_LOG_REGISTERS));
++
++ void *buf = reinterpret_cast<void *>(value.GetAsUInt64());
++ LLDB_LOG(log, "{0}: {1}", reg_name, buf);
++
++ return NativeProcessLinux::PtraceWrapper(
++ PTRACE_POKEUSER, m_thread.GetID(), reinterpret_cast<void *>(offset), buf);
++}
++
++Error NativeRegisterContextLinux::DoReadGPR(void *buf, size_t buf_size) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_GETREGS, m_thread.GetID(),
++ nullptr, buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::DoWriteGPR(void *buf, size_t buf_size) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_SETREGS, m_thread.GetID(),
++ nullptr, buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::DoReadFPR(void *buf, size_t buf_size) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_GETFPREGS, m_thread.GetID(),
++ nullptr, buf, buf_size);
++}
++
++Error NativeRegisterContextLinux::DoWriteFPR(void *buf, size_t buf_size) {
++ return NativeProcessLinux::PtraceWrapper(PTRACE_SETFPREGS, m_thread.GetID(),
++ nullptr, buf, buf_size);
++}
diff --git a/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.h b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.h
new file mode 100644
index 0000000000..a4e41bf103
--- /dev/null
+++ b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD.h
@@ -0,0 +1,97 @@
+$NetBSD$
+
+--- source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h.orig 2017-03-01 11:04:42.048407244 +0000
++++ source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD.h
+@@ -0,0 +1,92 @@
++//===-- NativeRegisterContextLinux.h ----------------------------*- C++ -*-===//
++//
++// The LLVM Compiler Infrastructure
++//
++// This file is distributed under the University of Illinois Open Source
++// License. See LICENSE.TXT for details.
++//
++//===----------------------------------------------------------------------===//
++
++#ifndef lldb_NativeRegisterContextLinux_h
++#define lldb_NativeRegisterContextLinux_h
++
++#include "lldb/Host/common/NativeRegisterContextRegisterInfo.h"
++#include "lldb/Host/common/NativeThreadProtocol.h"
++
++#include "Plugins/Process/Linux/NativeProcessLinux.h"
++
++namespace lldb_private {
++namespace process_linux {
++
++class NativeRegisterContextLinux : public NativeRegisterContextRegisterInfo {
++public:
++ NativeRegisterContextLinux(NativeThreadProtocol &native_thread,
++ uint32_t concrete_frame_idx,
++ RegisterInfoInterface *reg_info_interface_p);
++
++ // This function is implemented in the NativeRegisterContextLinux_* subclasses
++ // to create a new
++ // instance of the host specific NativeRegisterContextLinux. The
++ // implementations can't collide
++ // as only one NativeRegisterContextLinux_* variant should be compiled into
++ // the final
++ // executable.
++ static NativeRegisterContextLinux *
++ CreateHostNativeRegisterContextLinux(const ArchSpec &target_arch,
++ NativeThreadProtocol &native_thread,
++ uint32_t concrete_frame_idx);
++
++protected:
++ lldb::ByteOrder GetByteOrder() const;
++
++ virtual Error ReadRegisterRaw(uint32_t reg_index, RegisterValue ®_value);
++
++ virtual Error WriteRegisterRaw(uint32_t reg_index,
++ const RegisterValue ®_value);
++
++ virtual Error ReadRegisterSet(void *buf, size_t buf_size,
++ unsigned int regset);
++
++ virtual Error WriteRegisterSet(void *buf, size_t buf_size,
++ unsigned int regset);
++
++ virtual Error ReadGPR();
++
++ virtual Error WriteGPR();
++
++ virtual Error ReadFPR();
++
++ virtual Error WriteFPR();
++
++ virtual void *GetGPRBuffer() { return nullptr; }
++
++ virtual size_t GetGPRSize() {
++ return GetRegisterInfoInterface().GetGPRSize();
++ }
++
++ virtual void *GetFPRBuffer() { return nullptr; }
++
++ virtual size_t GetFPRSize() { return 0; }
++
++ // The Do*** functions are executed on the privileged thread and can perform
++ // ptrace
++ // operations directly.
++ virtual Error DoReadRegisterValue(uint32_t offset, const char *reg_name,
++ uint32_t size, RegisterValue &value);
++
++ virtual Error DoWriteRegisterValue(uint32_t offset, const char *reg_name,
++ const RegisterValue &value);
++
++ virtual Error DoReadGPR(void *buf, size_t buf_size);
++
++ virtual Error DoWriteGPR(void *buf, size_t buf_size);
++
++ virtual Error DoReadFPR(void *buf, size_t buf_size);
++
++ virtual Error DoWriteFPR(void *buf, size_t buf_size);
++};
++
++} // namespace process_linux
++} // namespace lldb_private
++
++#endif // #ifndef lldb_NativeRegisterContextLinux_h
diff --git a/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.cpp b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.cpp
new file mode 100644
index 0000000000..86b6fa7677
--- /dev/null
+++ b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.cpp
@@ -0,0 +1,1226 @@
+$NetBSD$
+
+--- source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp.orig 2017-03-01 11:04:48.447830223 +0000
++++ source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.cpp
+@@ -0,0 +1,1221 @@
++//===-- NativeRegisterContextLinux_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(__i386__) || defined(__x86_64__)
++
++#include "NativeRegisterContextLinux_x86_64.h"
++
++#include "lldb/Core/DataBufferHeap.h"
++#include "lldb/Core/Log.h"
++#include "lldb/Core/RegisterValue.h"
++#include "lldb/Host/HostInfo.h"
++#include "lldb/Utility/Error.h"
++
++#include "Plugins/Process/Utility/RegisterContextLinux_i386.h"
++#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h"
++
++#include <linux/elf.h>
++
++using namespace lldb_private;
++using namespace lldb_private::process_linux;
++
++// ----------------------------------------------------------------------------
++// Private namespace.
++// ----------------------------------------------------------------------------
++
++namespace {
++// x86 32-bit general purpose registers.
++const uint32_t g_gpr_regnums_i386[] = {
++ lldb_eax_i386, lldb_ebx_i386, lldb_ecx_i386, lldb_edx_i386,
++ lldb_edi_i386, lldb_esi_i386, lldb_ebp_i386, lldb_esp_i386,
++ lldb_eip_i386, lldb_eflags_i386, lldb_cs_i386, lldb_fs_i386,
++ lldb_gs_i386, lldb_ss_i386, lldb_ds_i386, lldb_es_i386,
++ lldb_ax_i386, lldb_bx_i386, lldb_cx_i386, lldb_dx_i386,
++ lldb_di_i386, lldb_si_i386, lldb_bp_i386, lldb_sp_i386,
++ lldb_ah_i386, lldb_bh_i386, lldb_ch_i386, lldb_dh_i386,
++ lldb_al_i386, lldb_bl_i386, lldb_cl_i386, lldb_dl_i386,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_gpr_regnums_i386) / sizeof(g_gpr_regnums_i386[0])) -
++ 1 ==
++ k_num_gpr_registers_i386,
++ "g_gpr_regnums_i386 has wrong number of register infos");
++
++// x86 32-bit floating point registers.
++const uint32_t g_fpu_regnums_i386[] = {
++ lldb_fctrl_i386, lldb_fstat_i386, lldb_ftag_i386, lldb_fop_i386,
++ lldb_fiseg_i386, lldb_fioff_i386, lldb_foseg_i386, lldb_fooff_i386,
++ lldb_mxcsr_i386, lldb_mxcsrmask_i386, lldb_st0_i386, lldb_st1_i386,
++ lldb_st2_i386, lldb_st3_i386, lldb_st4_i386, lldb_st5_i386,
++ lldb_st6_i386, lldb_st7_i386, lldb_mm0_i386, lldb_mm1_i386,
++ lldb_mm2_i386, lldb_mm3_i386, lldb_mm4_i386, lldb_mm5_i386,
++ lldb_mm6_i386, lldb_mm7_i386, lldb_xmm0_i386, lldb_xmm1_i386,
++ lldb_xmm2_i386, lldb_xmm3_i386, lldb_xmm4_i386, lldb_xmm5_i386,
++ lldb_xmm6_i386, lldb_xmm7_i386,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_fpu_regnums_i386) / sizeof(g_fpu_regnums_i386[0])) -
++ 1 ==
++ k_num_fpr_registers_i386,
++ "g_fpu_regnums_i386 has wrong number of register infos");
++
++// x86 32-bit AVX registers.
++const uint32_t g_avx_regnums_i386[] = {
++ lldb_ymm0_i386, lldb_ymm1_i386, lldb_ymm2_i386, lldb_ymm3_i386,
++ lldb_ymm4_i386, lldb_ymm5_i386, lldb_ymm6_i386, lldb_ymm7_i386,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_avx_regnums_i386) / sizeof(g_avx_regnums_i386[0])) -
++ 1 ==
++ k_num_avx_registers_i386,
++ " g_avx_regnums_i386 has wrong number of register infos");
++
++// x64 32-bit MPX registers.
++static const uint32_t g_mpx_regnums_i386[] = {
++ lldb_bnd0_i386, lldb_bnd1_i386, lldb_bnd2_i386, lldb_bnd3_i386,
++ lldb_bndcfgu_i386, lldb_bndstatus_i386,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_mpx_regnums_i386) / sizeof(g_mpx_regnums_i386[0])) -
++ 1 ==
++ k_num_mpx_registers_i386,
++ "g_mpx_regnums_x86_64 has wrong number of register infos");
++
++// 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");
++
++// x86 64-bit floating point registers.
++static const uint32_t g_fpu_regnums_x86_64[] = {
++ lldb_fctrl_x86_64, lldb_fstat_x86_64, lldb_ftag_x86_64,
++ lldb_fop_x86_64, lldb_fiseg_x86_64, lldb_fioff_x86_64,
++ lldb_foseg_x86_64, lldb_fooff_x86_64, lldb_mxcsr_x86_64,
++ lldb_mxcsrmask_x86_64, lldb_st0_x86_64, lldb_st1_x86_64,
++ lldb_st2_x86_64, lldb_st3_x86_64, lldb_st4_x86_64,
++ lldb_st5_x86_64, lldb_st6_x86_64, lldb_st7_x86_64,
++ lldb_mm0_x86_64, lldb_mm1_x86_64, lldb_mm2_x86_64,
++ lldb_mm3_x86_64, lldb_mm4_x86_64, lldb_mm5_x86_64,
++ lldb_mm6_x86_64, lldb_mm7_x86_64, lldb_xmm0_x86_64,
++ lldb_xmm1_x86_64, lldb_xmm2_x86_64, lldb_xmm3_x86_64,
++ lldb_xmm4_x86_64, lldb_xmm5_x86_64, lldb_xmm6_x86_64,
++ lldb_xmm7_x86_64, lldb_xmm8_x86_64, lldb_xmm9_x86_64,
++ lldb_xmm10_x86_64, lldb_xmm11_x86_64, lldb_xmm12_x86_64,
++ lldb_xmm13_x86_64, lldb_xmm14_x86_64, lldb_xmm15_x86_64,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_fpu_regnums_x86_64) / sizeof(g_fpu_regnums_x86_64[0])) -
++ 1 ==
++ k_num_fpr_registers_x86_64,
++ "g_fpu_regnums_x86_64 has wrong number of register infos");
++
++// x86 64-bit AVX registers.
++static const uint32_t g_avx_regnums_x86_64[] = {
++ lldb_ymm0_x86_64, lldb_ymm1_x86_64, lldb_ymm2_x86_64, lldb_ymm3_x86_64,
++ lldb_ymm4_x86_64, lldb_ymm5_x86_64, lldb_ymm6_x86_64, lldb_ymm7_x86_64,
++ lldb_ymm8_x86_64, lldb_ymm9_x86_64, lldb_ymm10_x86_64, lldb_ymm11_x86_64,
++ lldb_ymm12_x86_64, lldb_ymm13_x86_64, lldb_ymm14_x86_64, lldb_ymm15_x86_64,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_avx_regnums_x86_64) / sizeof(g_avx_regnums_x86_64[0])) -
++ 1 ==
++ k_num_avx_registers_x86_64,
++ "g_avx_regnums_x86_64 has wrong number of register infos");
++
++// x86 64-bit MPX registers.
++static const uint32_t g_mpx_regnums_x86_64[] = {
++ lldb_bnd0_x86_64, lldb_bnd1_x86_64, lldb_bnd2_x86_64,
++ lldb_bnd3_x86_64, lldb_bndcfgu_x86_64, lldb_bndstatus_x86_64,
++ LLDB_INVALID_REGNUM // register sets need to end with this flag
++};
++static_assert((sizeof(g_mpx_regnums_x86_64) / sizeof(g_mpx_regnums_x86_64[0])) -
++ 1 ==
++ k_num_mpx_registers_x86_64,
++ "g_mpx_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 32-bit.
++static const RegisterSet g_reg_sets_i386[k_num_register_sets] = {
++ {"General Purpose Registers", "gpr", k_num_gpr_registers_i386,
++ g_gpr_regnums_i386},
++ {"Floating Point Registers", "fpu", k_num_fpr_registers_i386,
++ g_fpu_regnums_i386},
++ {"Advanced Vector Extensions", "avx", k_num_avx_registers_i386,
++ g_avx_regnums_i386},
++ { "Memory Protection Extensions", "mpx", k_num_mpx_registers_i386,
++ g_mpx_regnums_i386}};
++
++// 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},
++ {"Floating Point Registers", "fpu", k_num_fpr_registers_x86_64,
++ g_fpu_regnums_x86_64},
++ {"Advanced Vector Extensions", "avx", k_num_avx_registers_x86_64,
++ g_avx_regnums_x86_64},
++ { "Memory Protection Extensions", "mpx", k_num_mpx_registers_x86_64,
++ g_mpx_regnums_x86_64}};
++}
++
++#define REG_CONTEXT_SIZE (GetRegisterInfoInterface().GetGPRSize() + sizeof(FPR))
++
++// ----------------------------------------------------------------------------
++// Required ptrace defines.
++// ----------------------------------------------------------------------------
++
++// Support ptrace extensions even when compiled without required kernel support
++#ifndef NT_X86_XSTATE
++#define NT_X86_XSTATE 0x202
++#endif
++#ifndef NT_PRXFPREG
++#define NT_PRXFPREG 0x46e62b7f
++#endif
++
++// On x86_64 NT_PRFPREG is used to access the FXSAVE area. On i386, we need to
++// use NT_PRXFPREG.
++static inline unsigned int fxsr_regset(const ArchSpec &arch) {
++ return arch.GetAddressByteSize() == 8 ? NT_PRFPREG : NT_PRXFPREG;
++}
++
++// ----------------------------------------------------------------------------
++// Required MPX define.
++// ----------------------------------------------------------------------------
++
++// Support MPX extensions also if compiled with compiler without MPX support.
++#ifndef bit_MPX
++#define bit_MPX 0x4000
++#endif
++
++// ----------------------------------------------------------------------------
++// XCR0 extended register sets masks.
++// ----------------------------------------------------------------------------
++#define mask_XSTATE_AVX (1ULL << 2)
++#define mask_XSTATE_BNDREGS (1ULL << 3)
++#define mask_XSTATE_BNDCFG (1ULL << 4)
++#define mask_XSTATE_MPX (mask_XSTATE_BNDREGS | mask_XSTATE_BNDCFG)
++
++NativeRegisterContextLinux *
++NativeRegisterContextLinux::CreateHostNativeRegisterContextLinux(
++ const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
++ uint32_t concrete_frame_idx) {
++ return new NativeRegisterContextLinux_x86_64(target_arch, native_thread,
++ concrete_frame_idx);
++}
++
++// ----------------------------------------------------------------------------
++// NativeRegisterContextLinux_x86_64 members.
++// ----------------------------------------------------------------------------
++
++static RegisterInfoInterface *
++CreateRegisterInfoInterface(const ArchSpec &target_arch) {
++ if (HostInfo::GetArchitecture().GetAddressByteSize() == 4) {
++ // 32-bit hosts run with a RegisterContextLinux_i386 context.
++ return new RegisterContextLinux_i386(target_arch);
++ } else {
++ 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 RegisterContextLinux_x86_64(target_arch);
++ }
++}
++
++NativeRegisterContextLinux_x86_64::NativeRegisterContextLinux_x86_64(
++ const ArchSpec &target_arch, NativeThreadProtocol &native_thread,
++ uint32_t concrete_frame_idx)
++ : NativeRegisterContextLinux(native_thread, concrete_frame_idx,
++ CreateRegisterInfoInterface(target_arch)),
++ m_xstate_type(XStateType::Invalid), m_fpr(), m_iovec(), m_ymm_set(),
++ m_mpx_set(), m_reg_info(), m_gpr_x86_64() {
++ // Set up data about ranges of valid registers.
++ switch (target_arch.GetMachine()) {
++ case llvm::Triple::x86:
++ m_reg_info.num_registers = k_num_registers_i386;
++ m_reg_info.num_gpr_registers = k_num_gpr_registers_i386;
++ m_reg_info.num_fpr_registers = k_num_fpr_registers_i386;
++ m_reg_info.num_avx_registers = k_num_avx_registers_i386;
++ m_reg_info.num_mpx_registers = k_num_mpx_registers_i386;
++ m_reg_info.last_gpr = k_last_gpr_i386;
++ m_reg_info.first_fpr = k_first_fpr_i386;
++ m_reg_info.last_fpr = k_last_fpr_i386;
++ m_reg_info.first_st = lldb_st0_i386;
++ m_reg_info.last_st = lldb_st7_i386;
++ m_reg_info.first_mm = lldb_mm0_i386;
++ m_reg_info.last_mm = lldb_mm7_i386;
++ m_reg_info.first_xmm = lldb_xmm0_i386;
++ m_reg_info.last_xmm = lldb_xmm7_i386;
++ m_reg_info.first_ymm = lldb_ymm0_i386;
++ m_reg_info.last_ymm = lldb_ymm7_i386;
++ m_reg_info.first_mpxr = lldb_bnd0_i386;
++ m_reg_info.last_mpxr = lldb_bnd3_i386;
++ m_reg_info.first_mpxc = lldb_bndcfgu_i386;
++ m_reg_info.last_mpxc = lldb_bndstatus_i386;
++ m_reg_info.first_dr = lldb_dr0_i386;
++ m_reg_info.gpr_flags = lldb_eflags_i386;
++ break;
++ case llvm::Triple::x86_64:
++ m_reg_info.num_registers = k_num_registers_x86_64;
++ m_reg_info.num_gpr_registers = k_num_gpr_registers_x86_64;
++ m_reg_info.num_fpr_registers = k_num_fpr_registers_x86_64;
++ m_reg_info.num_avx_registers = k_num_avx_registers_x86_64;
++ m_reg_info.num_mpx_registers = k_num_mpx_registers_x86_64;
++ m_reg_info.last_gpr = k_last_gpr_x86_64;
++ m_reg_info.first_fpr = k_first_fpr_x86_64;
++ m_reg_info.last_fpr = k_last_fpr_x86_64;
++ m_reg_info.first_st = lldb_st0_x86_64;
++ m_reg_info.last_st = lldb_st7_x86_64;
++ m_reg_info.first_mm = lldb_mm0_x86_64;
++ m_reg_info.last_mm = lldb_mm7_x86_64;
++ m_reg_info.first_xmm = lldb_xmm0_x86_64;
++ m_reg_info.last_xmm = lldb_xmm15_x86_64;
++ m_reg_info.first_ymm = lldb_ymm0_x86_64;
++ m_reg_info.last_ymm = lldb_ymm15_x86_64;
++ m_reg_info.first_mpxr = lldb_bnd0_x86_64;
++ m_reg_info.last_mpxr = lldb_bnd3_x86_64;
++ m_reg_info.first_mpxc = lldb_bndcfgu_x86_64;
++ m_reg_info.last_mpxc = lldb_bndstatus_x86_64;
++ m_reg_info.first_dr = lldb_dr0_x86_64;
++ m_reg_info.gpr_flags = lldb_rflags_x86_64;
++ break;
++ default:
++ assert(false && "Unhandled target architecture.");
++ break;
++ }
++
++ // Initialize m_iovec to point to the buffer and buffer size
++ // using the conventions of Berkeley style UIO structures, as required
++ // by PTRACE extensions.
++ m_iovec.iov_base = &m_fpr.xstate.xsave;
++ m_iovec.iov_len = sizeof(m_fpr.xstate.xsave);
++
++ // Clear out the FPR state.
++ ::memset(&m_fpr, 0, sizeof(FPR));
++
++ // Store byte offset of fctrl (i.e. first register of FPR)
++ const RegisterInfo *reg_info_fctrl = GetRegisterInfoByName("fctrl");
++ m_fctrl_offset_in_userarea = reg_info_fctrl->byte_offset;
++}
++
++// 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 NativeRegisterContextLinux_x86_64::GetRegisterSetCount() const {
++ uint32_t sets = 0;
++ for (uint32_t set_index = 0; set_index < k_num_register_sets; ++set_index) {
++ if (IsRegisterSetAvailable(set_index))
++ ++sets;
++ }
++
++ return sets;
++}
++
++uint32_t NativeRegisterContextLinux_x86_64::GetUserRegisterCount() const {
++ uint32_t count = 0;
++ for (uint32_t set_index = 0; set_index < k_num_register_sets; ++set_index) {
++ const RegisterSet *set = GetRegisterSet(set_index);
++ if (set)
++ count += set->num_registers;
++ }
++ return count;
++}
++
++const RegisterSet *
++NativeRegisterContextLinux_x86_64::GetRegisterSet(uint32_t set_index) const {
++ if (!IsRegisterSetAvailable(set_index))
++ return nullptr;
++
++ switch (GetRegisterInfoInterface().GetTargetArchitecture().GetMachine()) {
++ case llvm::Triple::x86:
++ return &g_reg_sets_i386[set_index];
++ case llvm::Triple::x86_64:
++ return &g_reg_sets_x86_64[set_index];
++ default:
++ assert(false && "Unhandled target architecture.");
++ return nullptr;
++ }
++
++ return nullptr;
++}
++
++Error NativeRegisterContextLinux_x86_64::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 (IsFPR(reg) || IsAVX(reg) || IsMPX(reg)) {
++ error = ReadFPR();
++ if (error.Fail())
++ return error;
++ } else {
++ uint32_t full_reg = reg;
++ bool is_subreg = reg_info->invalidate_regs &&
++ (reg_info->invalidate_regs[0] != LLDB_INVALID_REGNUM);
++
++ if (is_subreg) {
++ // Read the full aligned 64-bit register.
++ full_reg = reg_info->invalidate_regs[0];
++ }
++
++ error = ReadRegisterRaw(full_reg, reg_value);
++
++ if (error.Success()) {
++ // If our read was not aligned (for ah,bh,ch,dh), shift our returned value
++ // one byte to the right.
++ if (is_subreg && (reg_info->byte_offset & 0x1))
++ reg_value.SetUInt64(reg_value.GetAsUInt64() >> 8);
++
++ // If our return byte size was greater than the return value reg size,
++ // then
++ // use the type specified by reg_info rather than the uint64_t default
++ if (reg_value.GetByteSize() > reg_info->byte_size)
++ reg_value.SetType(reg_info);
++ }
++ return error;
++ }
++
++ if (reg_info->encoding == lldb::eEncodingVector) {
++ lldb::ByteOrder byte_order = GetByteOrder();
++
++ if (byte_order != lldb::eByteOrderInvalid) {
++ if (reg >= m_reg_info.first_st && reg <= m_reg_info.last_st)
++ reg_value.SetBytes(
++ m_fpr.xstate.fxsave.stmm[reg - m_reg_info.first_st].bytes,
++ reg_info->byte_size, byte_order);
++ if (reg >= m_reg_info.first_mm && reg <= m_reg_info.last_mm)
++ reg_value.SetBytes(
++ m_fpr.xstate.fxsave.stmm[reg - m_reg_info.first_mm].bytes,
++ reg_info->byte_size, byte_order);
++ if (reg >= m_reg_info.first_xmm && reg <= m_reg_info.last_xmm)
++ reg_value.SetBytes(
++ m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_xmm].bytes,
++ reg_info->byte_size, byte_order);
++ if (reg >= m_reg_info.first_ymm && reg <= m_reg_info.last_ymm) {
++ // Concatenate ymm using the register halves in xmm.bytes and ymmh.bytes
++ if (CopyXSTATEtoYMM(reg, byte_order))
++ reg_value.SetBytes(m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes,
++ reg_info->byte_size, byte_order);
++ else {
++ error.SetErrorString("failed to copy ymm register value");
++ return error;
++ }
++ }
++ if (reg >= m_reg_info.first_mpxr && reg <= m_reg_info.last_mpxr) {
++ if (CopyXSTATEtoMPX(reg))
++ reg_value.SetBytes(m_mpx_set.mpxr[reg - m_reg_info.first_mpxr].bytes,
++ reg_info->byte_size, byte_order);
++ else {
++ error.SetErrorString("failed to copy mpx register value");
++ return error;
++ }
++ }
++ if (reg >= m_reg_info.first_mpxc && reg <= m_reg_info.last_mpxc) {
++ if (CopyXSTATEtoMPX(reg))
++ reg_value.SetBytes(m_mpx_set.mpxc[reg - m_reg_info.first_mpxc].bytes,
++ reg_info->byte_size, byte_order);
++ else {
++ error.SetErrorString("failed to copy mpx register value");
++ return error;
++ }
++ }
++
++ if (reg_value.GetType() != RegisterValue::eTypeBytes)
++ error.SetErrorString(
++ "write failed - type was expected to be RegisterValue::eTypeBytes");
++
++ return error;
++ }
++
++ error.SetErrorString("byte order is invalid");
++ return error;
++ }
++
++ // Get pointer to m_fpr.xstate.fxsave variable and set the data from it.
++
++ // Byte offsets of all registers are calculated wrt 'UserArea' structure.
++ // However, ReadFPR() reads fpu registers {using ptrace(PTRACE_GETFPREGS,..)}
++ // and stores them in 'm_fpr' (of type FPR structure). To extract values of
++ // fpu
++ // registers, m_fpr should be read at byte offsets calculated wrt to FPR
++ // structure.
++
++ // Since, FPR structure is also one of the member of UserArea structure.
++ // byte_offset(fpu wrt FPR) = byte_offset(fpu wrt UserArea) -
++ // byte_offset(fctrl wrt UserArea)
++ assert((reg_info->byte_offset - m_fctrl_offset_in_userarea) < sizeof(m_fpr));
++ uint8_t *src =
++ (uint8_t *)&m_fpr + reg_info->byte_offset - m_fctrl_offset_in_userarea;
++ switch (reg_info->byte_size) {
++ case 1:
++ reg_value.SetUInt8(*(uint8_t *)src);
++ break;
++ case 2:
++ reg_value.SetUInt16(*(uint16_t *)src);
++ break;
++ case 4:
++ reg_value.SetUInt32(*(uint32_t *)src);
++ break;
++ case 8:
++ reg_value.SetUInt64(*(uint64_t *)src);
++ break;
++ default:
++ assert(false && "Unhandled data size.");
++ error.SetErrorStringWithFormat("unhandled byte size: %" PRIu32,
++ reg_info->byte_size);
++ break;
++ }
++
++ return error;
++}
++
++Error NativeRegisterContextLinux_x86_64::WriteRegister(
++ const RegisterInfo *reg_info, const RegisterValue ®_value) {
++ assert(reg_info && "reg_info is null");
++
++ const uint32_t reg_index = reg_info->kinds[lldb::eRegisterKindLLDB];
++ if (reg_index == LLDB_INVALID_REGNUM)
++ return Error("no lldb regnum for %s", reg_info && reg_info->name
++ ? reg_info->name
++ : "<unknown register>");
++
++ if (IsGPR(reg_index))
++ return WriteRegisterRaw(reg_index, reg_value);
++
++ if (IsFPR(reg_index) || IsAVX(reg_index) || IsMPX(reg_index)) {
++ if (reg_info->encoding == lldb::eEncodingVector) {
++ if (reg_index >= m_reg_info.first_st && reg_index <= m_reg_info.last_st)
++ ::memcpy(
++ m_fpr.xstate.fxsave.stmm[reg_index - m_reg_info.first_st].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++
++ if (reg_index >= m_reg_info.first_mm && reg_index <= m_reg_info.last_mm)
++ ::memcpy(
++ m_fpr.xstate.fxsave.stmm[reg_index - m_reg_info.first_mm].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++
++ if (reg_index >= m_reg_info.first_xmm && reg_index <= m_reg_info.last_xmm)
++ ::memcpy(
++ m_fpr.xstate.fxsave.xmm[reg_index - m_reg_info.first_xmm].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++
++ if (reg_index >= m_reg_info.first_ymm &&
++ reg_index <= m_reg_info.last_ymm) {
++ // Store ymm register content, and split into the register halves in
++ // xmm.bytes and ymmh.bytes
++ ::memcpy(m_ymm_set.ymm[reg_index - m_reg_info.first_ymm].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++ if (!CopyYMMtoXSTATE(reg_index, GetByteOrder()))
++ return Error("CopyYMMtoXSTATE() failed");
++ }
++
++ if (reg_index >= m_reg_info.first_mpxr &&
++ reg_index <= m_reg_info.last_mpxr) {
++ ::memcpy(m_mpx_set.mpxr[reg_index - m_reg_info.first_mpxr].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++ if (!CopyMPXtoXSTATE(reg_index))
++ return Error("CopyMPXtoXSTATE() failed");
++ }
++
++ if (reg_index >= m_reg_info.first_mpxc &&
++ reg_index <= m_reg_info.last_mpxc) {
++ ::memcpy(m_mpx_set.mpxc[reg_index - m_reg_info.first_mpxc].bytes,
++ reg_value.GetBytes(), reg_value.GetByteSize());
++ if (!CopyMPXtoXSTATE(reg_index))
++ return Error("CopyMPXtoXSTATE() failed");
++ }
++ } else {
++ // Get pointer to m_fpr.xstate.fxsave variable and set the data to it.
++
++ // Byte offsets of all registers are calculated wrt 'UserArea' structure.
++ // However, WriteFPR() takes m_fpr (of type FPR structure) and writes only
++ // fpu
++ // registers using ptrace(PTRACE_SETFPREGS,..) API. Hence fpu registers
++ // should
++ // be written in m_fpr at byte offsets calculated wrt FPR structure.
++
++ // Since, FPR structure is also one of the member of UserArea structure.
++ // byte_offset(fpu wrt FPR) = byte_offset(fpu wrt UserArea) -
++ // byte_offset(fctrl wrt UserArea)
++ assert((reg_info->byte_offset - m_fctrl_offset_in_userarea) <
++ sizeof(m_fpr));
++ uint8_t *dst = (uint8_t *)&m_fpr + reg_info->byte_offset -
++ m_fctrl_offset_in_userarea;
++ switch (reg_info->byte_size) {
++ case 1:
++ *(uint8_t *)dst = reg_value.GetAsUInt8();
++ break;
++ case 2:
++ *(uint16_t *)dst = reg_value.GetAsUInt16();
++ break;
++ case 4:
++ *(uint32_t *)dst = reg_value.GetAsUInt32();
++ break;
++ case 8:
++ *(uint64_t *)dst = reg_value.GetAsUInt64();
++ break;
++ default:
++ assert(false && "Unhandled data size.");
++ return Error("unhandled register data size %" PRIu32,
++ reg_info->byte_size);
++ }
++ }
++
++ Error error = WriteFPR();
++ if (error.Fail())
++ return error;
++
++ if (IsAVX(reg_index)) {
++ if (!CopyYMMtoXSTATE(reg_index, GetByteOrder()))
++ return Error("CopyYMMtoXSTATE() failed");
++ }
++
++ if (IsMPX(reg_index)) {
++ if (!CopyMPXtoXSTATE(reg_index))
++ return Error("CopyMPXtoXSTATE() failed");
++ }
++ return Error();
++ }
++ return Error("failed - register wasn't recognized to be a GPR or an FPR, "
++ "write strategy unknown");
++}
++
++Error NativeRegisterContextLinux_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;
++
++ error = ReadFPR();
++ 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();
++ if (m_xstate_type == XStateType::FXSAVE)
++ ::memcpy(dst, &m_fpr.xstate.fxsave, sizeof(m_fpr.xstate.fxsave));
++ else if (m_xstate_type == XStateType::XSAVE) {
++ lldb::ByteOrder byte_order = GetByteOrder();
++
++ if (IsCPUFeatureAvailable(RegSet::avx)) {
++ // Assemble the YMM register content from the register halves.
++ for (uint32_t reg = m_reg_info.first_ymm; reg <= m_reg_info.last_ymm;
++ ++reg) {
++ if (!CopyXSTATEtoYMM(reg, byte_order)) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_x86_64::%s "
++ "CopyXSTATEtoYMM() failed for reg num "
++ "%" PRIu32,
++ __FUNCTION__, reg);
++ return error;
++ }
++ }
++ }
++
++ if (IsCPUFeatureAvailable(RegSet::mpx)) {
++ for (uint32_t reg = m_reg_info.first_mpxr; reg <= m_reg_info.last_mpxc;
++ ++reg) {
++ if (!CopyXSTATEtoMPX(reg)) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_x86_64::%s "
++ "CopyXSTATEtoMPX() failed for reg num "
++ "%" PRIu32,
++ __FUNCTION__, reg);
++ return error;
++ }
++ }
++ }
++ // Copy the extended register state including the assembled ymm registers.
++ ::memcpy(dst, &m_fpr, sizeof(m_fpr));
++ } else {
++ assert(false && "how do we save the floating point registers?");
++ error.SetErrorString("unsure how to save the floating point registers");
++ }
++ /** The following code is specific to Linux x86 based architectures,
++ * where the register orig_eax (32 bit)/orig_rax (64 bit) is set to
++ * -1 to solve the bug 23659, such a setting prevents the automatic
++ * decrement of the instruction pointer which was causing the SIGILL
++ * exception.
++ * **/
++
++ RegisterValue value((uint64_t)-1);
++ const RegisterInfo *reg_info =
++ GetRegisterInfoInterface().GetDynamicRegisterInfo("orig_eax");
++ if (reg_info == nullptr)
++ reg_info = GetRegisterInfoInterface().GetDynamicRegisterInfo("orig_rax");
++
++ if (reg_info != nullptr)
++ return DoWriteRegisterValue(reg_info->byte_offset, reg_info->name, value);
++
++ return error;
++}
++
++Error NativeRegisterContextLinux_x86_64::WriteAllRegisterValues(
++ const lldb::DataBufferSP &data_sp) {
++ Error error;
++
++ if (!data_sp) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_x86_64::%s invalid data_sp provided",
++ __FUNCTION__);
++ return error;
++ }
++
++ if (data_sp->GetByteSize() != REG_CONTEXT_SIZE) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_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("NativeRegisterContextLinux_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();
++ if (m_xstate_type == XStateType::FXSAVE)
++ ::memcpy(&m_fpr.xstate.fxsave, src, sizeof(m_fpr.xstate.fxsave));
++ else if (m_xstate_type == XStateType::XSAVE)
++ ::memcpy(&m_fpr.xstate.xsave, src, sizeof(m_fpr.xstate.xsave));
++
++ error = WriteFPR();
++ if (error.Fail())
++ return error;
++
++ if (m_xstate_type == XStateType::XSAVE) {
++ lldb::ByteOrder byte_order = GetByteOrder();
++
++ if (IsCPUFeatureAvailable(RegSet::avx)) {
++ // Parse the YMM register content from the register halves.
++ for (uint32_t reg = m_reg_info.first_ymm; reg <= m_reg_info.last_ymm;
++ ++reg) {
++ if (!CopyYMMtoXSTATE(reg, byte_order)) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_x86_64::%s "
++ "CopyYMMtoXSTATE() failed for reg num "
++ "%" PRIu32,
++ __FUNCTION__, reg);
++ return error;
++ }
++ }
++ }
++
++ if (IsCPUFeatureAvailable(RegSet::mpx)) {
++ for (uint32_t reg = m_reg_info.first_mpxr; reg <= m_reg_info.last_mpxc;
++ ++reg) {
++ if (!CopyMPXtoXSTATE(reg)) {
++ error.SetErrorStringWithFormat(
++ "NativeRegisterContextLinux_x86_64::%s "
++ "CopyMPXtoXSTATE() failed for reg num "
++ "%" PRIu32,
++ __FUNCTION__, reg);
++ return error;
++ }
++ }
++ }
++ }
++
++ return error;
++}
++
++bool NativeRegisterContextLinux_x86_64::IsCPUFeatureAvailable(
++ RegSet feature_code) const {
++ if (m_xstate_type == XStateType::Invalid) {
++ if (const_cast<NativeRegisterContextLinux_x86_64 *>(this)->ReadFPR().Fail())
++ return false;
++ }
++ switch (feature_code) {
++ case RegSet::gpr:
++ case RegSet::fpu:
++ return true;
++ case RegSet::avx: // Check if CPU has AVX and if there is kernel support, by
++ // reading in the XCR0 area of XSAVE.
++ if ((m_fpr.xstate.xsave.i387.xcr0 & mask_XSTATE_AVX) == mask_XSTATE_AVX)
++ return true;
++ break;
++ case RegSet::mpx: // Check if CPU has MPX and if there is kernel support, by
++ // reading in the XCR0 area of XSAVE.
++ if ((m_fpr.xstate.xsave.i387.xcr0 & mask_XSTATE_MPX) == mask_XSTATE_MPX)
++ return true;
++ break;
++ }
++ return false;
++}
++
++bool NativeRegisterContextLinux_x86_64::IsRegisterSetAvailable(
++ uint32_t set_index) const {
++ uint32_t num_sets = k_num_register_sets - k_num_extended_register_sets;
++
++ switch (static_cast<RegSet>(set_index)) {
++ case RegSet::gpr:
++ case RegSet::fpu:
++ return (set_index < num_sets);
++ case RegSet::avx:
++ return IsCPUFeatureAvailable(RegSet::avx);
++ case RegSet::mpx:
++ return IsCPUFeatureAvailable(RegSet::mpx);
++ }
++ return false;
++}
++
++bool NativeRegisterContextLinux_x86_64::IsGPR(uint32_t reg_index) const {
++ // GPRs come first.
++ return reg_index <= m_reg_info.last_gpr;
++}
++
++bool NativeRegisterContextLinux_x86_64::IsFPR(uint32_t reg_index) const {
++ return (m_reg_info.first_fpr <= reg_index &&
++ reg_index <= m_reg_info.last_fpr);
++}
++
++Error NativeRegisterContextLinux_x86_64::WriteFPR() {
++ switch (m_xstate_type) {
++ case XStateType::FXSAVE:
++ return WriteRegisterSet(
++ &m_iovec, sizeof(m_fpr.xstate.xsave),
++ fxsr_regset(GetRegisterInfoInterface().GetTargetArchitecture()));
++ case XStateType::XSAVE:
++ return WriteRegisterSet(&m_iovec, sizeof(m_fpr.xstate.xsave),
++ NT_X86_XSTATE);
++ default:
++ return Error("Unrecognized FPR type.");
++ }
++}
++
++bool NativeRegisterContextLinux_x86_64::IsAVX(uint32_t reg_index) const {
++ if (!IsCPUFeatureAvailable(RegSet::avx))
++ return false;
++ return (m_reg_info.first_ymm <= reg_index &&
++ reg_index <= m_reg_info.last_ymm);
++}
++
++bool NativeRegisterContextLinux_x86_64::CopyXSTATEtoYMM(
++ uint32_t reg_index, lldb::ByteOrder byte_order) {
++ if (!IsAVX(reg_index))
++ return false;
++
++ if (byte_order == lldb::eByteOrderLittle) {
++ ::memcpy(m_ymm_set.ymm[reg_index - m_reg_info.first_ymm].bytes,
++ m_fpr.xstate.fxsave.xmm[reg_index - m_reg_info.first_ymm].bytes,
++ sizeof(XMMReg));
++ ::memcpy(m_ymm_set.ymm[reg_index - m_reg_info.first_ymm].bytes +
++ sizeof(XMMReg),
++ m_fpr.xstate.xsave.ymmh[reg_index - m_reg_info.first_ymm].bytes,
++ sizeof(YMMHReg));
++ return true;
++ }
++
++ if (byte_order == lldb::eByteOrderBig) {
++ ::memcpy(m_ymm_set.ymm[reg_index - m_reg_info.first_ymm].bytes +
++ sizeof(XMMReg),
++ m_fpr.xstate.fxsave.xmm[reg_index - m_reg_info.first_ymm].bytes,
++ sizeof(XMMReg));
++ ::memcpy(m_ymm_set.ymm[reg_index - m_reg_info.first_ymm].bytes,
++ m_fpr.xstate.xsave.ymmh[reg_index - m_reg_info.first_ymm].bytes,
++ sizeof(YMMHReg));
++ return true;
++ }
++ return false; // unsupported or invalid byte order
++}
++
++bool NativeRegisterContextLinux_x86_64::CopyYMMtoXSTATE(
++ uint32_t reg, lldb::ByteOrder byte_order) {
++ if (!IsAVX(reg))
++ return false;
++
++ if (byte_order == lldb::eByteOrderLittle) {
++ ::memcpy(m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
++ m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes, sizeof(XMMReg));
++ ::memcpy(m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
++ m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
++ sizeof(YMMHReg));
++ return true;
++ }
++
++ if (byte_order == lldb::eByteOrderBig) {
++ ::memcpy(m_fpr.xstate.fxsave.xmm[reg - m_reg_info.first_ymm].bytes,
++ m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes + sizeof(XMMReg),
++ sizeof(XMMReg));
++ ::memcpy(m_fpr.xstate.xsave.ymmh[reg - m_reg_info.first_ymm].bytes,
++ m_ymm_set.ymm[reg - m_reg_info.first_ymm].bytes, sizeof(YMMHReg));
++ return true;
++ }
++ return false; // unsupported or invalid byte order
++}
++
++void *NativeRegisterContextLinux_x86_64::GetFPRBuffer() {
++ switch (m_xstate_type) {
++ case XStateType::FXSAVE:
++ return &m_fpr.xstate.fxsave;
++ case XStateType::XSAVE:
++ return &m_iovec;
++ default:
++ return nullptr;
++ }
++}
++
++size_t NativeRegisterContextLinux_x86_64::GetFPRSize() {
++ switch (m_xstate_type) {
++ case XStateType::FXSAVE:
++ return sizeof(m_fpr.xstate.fxsave);
++ case XStateType::XSAVE:
++ return sizeof(m_iovec);
++ default:
++ return 0;
++ }
++}
++
++Error NativeRegisterContextLinux_x86_64::ReadFPR() {
++ Error error;
++
++ // Probe XSAVE and if it is not supported fall back to FXSAVE.
++ if (m_xstate_type != XStateType::FXSAVE) {
++ error =
++ ReadRegisterSet(&m_iovec, sizeof(m_fpr.xstate.xsave), NT_X86_XSTATE);
++ if (!error.Fail()) {
++ m_xstate_type = XStateType::XSAVE;
++ return error;
++ }
++ }
++ error = ReadRegisterSet(
++ &m_iovec, sizeof(m_fpr.xstate.xsave),
++ fxsr_regset(GetRegisterInfoInterface().GetTargetArchitecture()));
++ if (!error.Fail()) {
++ m_xstate_type = XStateType::FXSAVE;
++ return error;
++ }
++ return Error("Unrecognized FPR type.");
++}
++
++bool NativeRegisterContextLinux_x86_64::IsMPX(uint32_t reg_index) const {
++ if (!IsCPUFeatureAvailable(RegSet::mpx))
++ return false;
++ return (m_reg_info.first_mpxr <= reg_index &&
++ reg_index <= m_reg_info.last_mpxc);
++}
++
++bool NativeRegisterContextLinux_x86_64::CopyXSTATEtoMPX(uint32_t reg) {
++ if (!IsMPX(reg))
++ return false;
++
++ if (reg >= m_reg_info.first_mpxr && reg <= m_reg_info.last_mpxr) {
++ ::memcpy(m_mpx_set.mpxr[reg - m_reg_info.first_mpxr].bytes,
++ m_fpr.xstate.xsave.mpxr[reg - m_reg_info.first_mpxr].bytes,
++ sizeof(MPXReg));
++ } else {
++ ::memcpy(m_mpx_set.mpxc[reg - m_reg_info.first_mpxc].bytes,
++ m_fpr.xstate.xsave.mpxc[reg - m_reg_info.first_mpxc].bytes,
++ sizeof(MPXCsr));
++ }
++ return true;
++}
++
++bool NativeRegisterContextLinux_x86_64::CopyMPXtoXSTATE(uint32_t reg) {
++ if (!IsMPX(reg))
++ return false;
++
++ if (reg >= m_reg_info.first_mpxr && reg <= m_reg_info.last_mpxr) {
++ ::memcpy(m_fpr.xstate.xsave.mpxr[reg - m_reg_info.first_mpxr].bytes,
++ m_mpx_set.mpxr[reg - m_reg_info.first_mpxr].bytes, sizeof(MPXReg));
++ } else {
++ ::memcpy(m_fpr.xstate.xsave.mpxc[reg - m_reg_info.first_mpxc].bytes,
++ m_mpx_set.mpxc[reg - m_reg_info.first_mpxc].bytes, sizeof(MPXCsr));
++ }
++ return true;
++}
++
++Error NativeRegisterContextLinux_x86_64::IsWatchpointHit(uint32_t wp_index,
++ bool &is_hit) {
++ if (wp_index >= NumSupportedHardwareWatchpoints())
++ return Error("Watchpoint index out of range");
++
++ RegisterValue reg_value;
++ Error error = ReadRegisterRaw(m_reg_info.first_dr + 6, reg_value);
++ if (error.Fail()) {
++ is_hit = false;
++ return error;
++ }
++
++ uint64_t status_bits = reg_value.GetAsUInt64();
++
++ is_hit = status_bits & (1 << wp_index);
++
++ return error;
++}
++
++Error NativeRegisterContextLinux_x86_64::GetWatchpointHitIndex(
++ uint32_t &wp_index, lldb::addr_t trap_addr) {
++ uint32_t num_hw_wps = NumSupportedHardwareWatchpoints();
++ for (wp_index = 0; wp_index < num_hw_wps; ++wp_index) {
++ bool is_hit;
++ Error error = IsWatchpointHit(wp_index, is_hit);
++ if (error.Fail()) {
++ wp_index = LLDB_INVALID_INDEX32;
++ return error;
++ } else if (is_hit) {
++ return error;
++ }
++ }
++ wp_index = LLDB_INVALID_INDEX32;
++ return Error();
++}
++
++Error NativeRegisterContextLinux_x86_64::IsWatchpointVacant(uint32_t wp_index,
++ bool &is_vacant) {
++ if (wp_index >= NumSupportedHardwareWatchpoints())
++ return Error("Watchpoint index out of range");
++
++ RegisterValue reg_value;
++ Error error = ReadRegisterRaw(m_reg_info.first_dr + 7, reg_value);
++ if (error.Fail()) {
++ is_vacant = false;
++ return error;
++ }
++
++ uint64_t control_bits = reg_value.GetAsUInt64();
++
++ is_vacant = !(control_bits & (1 << (2 * wp_index)));
++
++ return error;
++}
++
++Error NativeRegisterContextLinux_x86_64::SetHardwareWatchpointWithIndex(
++ lldb::addr_t addr, size_t size, uint32_t watch_flags, uint32_t wp_index) {
++
++ if (wp_index >= NumSupportedHardwareWatchpoints())
++ return Error("Watchpoint index out of range");
++
++ // Read only watchpoints aren't supported on x86_64. Fall back to read/write
++ // waitchpoints instead.
++ // TODO: Add logic to detect when a write happens and ignore that watchpoint
++ // hit.
++ if (watch_flags == 0x2)
++ watch_flags = 0x3;
++
++ if (watch_flags != 0x1 && watch_flags != 0x3)
++ return Error("Invalid read/write bits for watchpoint");
++
++ if (size != 1 && size != 2 && size != 4 && size != 8)
++ return Error("Invalid size for watchpoint");
++
++ bool is_vacant;
++ Error error = IsWatchpointVacant(wp_index, is_vacant);
++ if (error.Fail())
++ return error;
++ if (!is_vacant)
++ return Error("Watchpoint index not vacant");
++
++ RegisterValue reg_value;
++ error = ReadRegisterRaw(m_reg_info.first_dr + 7, reg_value);
++ if (error.Fail())
++ return error;
++
++ // for watchpoints 0, 1, 2, or 3, respectively,
++ // set bits 1, 3, 5, or 7
++ uint64_t enable_bit = 1 << (2 * wp_index);
++
++ // set bits 16-17, 20-21, 24-25, or 28-29
++ // with 0b01 for write, and 0b11 for read/write
++ uint64_t rw_bits = watch_flags << (16 + 4 * wp_index);
++
++ // set bits 18-19, 22-23, 26-27, or 30-31
++ // with 0b00, 0b01, 0b10, or 0b11
++ // for 1, 2, 8 (if supported), or 4 bytes, respectively
++ uint64_t size_bits = (size == 8 ? 0x2 : size - 1) << (18 + 4 * wp_index);
++
++ uint64_t bit_mask = (0x3 << (2 * wp_index)) | (0xF << (16 + 4 * wp_index));
++
++ uint64_t control_bits = reg_value.GetAsUInt64() & ~bit_mask;
++
++ control_bits |= enable_bit | rw_bits | size_bits;
++
++ error = WriteRegisterRaw(m_reg_info.first_dr + wp_index, RegisterValue(addr));
++ if (error.Fail())
++ return error;
++
++ error =
++ WriteRegisterRaw(m_reg_info.first_dr + 7, RegisterValue(control_bits));
++ if (error.Fail())
++ return error;
++
++ error.Clear();
++ return error;
++}
++
++bool NativeRegisterContextLinux_x86_64::ClearHardwareWatchpoint(
++ uint32_t wp_index) {
++ if (wp_index >= NumSupportedHardwareWatchpoints())
++ return false;
++
++ RegisterValue reg_value;
++
++ // for watchpoints 0, 1, 2, or 3, respectively,
++ // clear bits 0, 1, 2, or 3 of the debug status register (DR6)
++ Error error = ReadRegisterRaw(m_reg_info.first_dr + 6, reg_value);
++ if (error.Fail())
++ return false;
++ uint64_t bit_mask = 1 << wp_index;
++ uint64_t status_bits = reg_value.GetAsUInt64() & ~bit_mask;
++ error = WriteRegisterRaw(m_reg_info.first_dr + 6, RegisterValue(status_bits));
++ if (error.Fail())
++ return false;
++
++ // for watchpoints 0, 1, 2, or 3, respectively,
++ // clear bits {0-1,16-19}, {2-3,20-23}, {4-5,24-27}, or {6-7,28-31}
++ // of the debug control register (DR7)
++ error = ReadRegisterRaw(m_reg_info.first_dr + 7, reg_value);
++ if (error.Fail())
++ return false;
++ bit_mask = (0x3 << (2 * wp_index)) | (0xF << (16 + 4 * wp_index));
++ uint64_t control_bits = reg_value.GetAsUInt64() & ~bit_mask;
++ return WriteRegisterRaw(m_reg_info.first_dr + 7, RegisterValue(control_bits))
++ .Success();
++}
++
++Error NativeRegisterContextLinux_x86_64::ClearAllHardwareWatchpoints() {
++ RegisterValue reg_value;
++
++ // clear bits {0-4} of the debug status register (DR6)
++ Error error = ReadRegisterRaw(m_reg_info.first_dr + 6, reg_value);
++ if (error.Fail())
++ return error;
++ uint64_t bit_mask = 0xF;
++ uint64_t status_bits = reg_value.GetAsUInt64() & ~bit_mask;
++ error = WriteRegisterRaw(m_reg_info.first_dr + 6, RegisterValue(status_bits));
++ if (error.Fail())
++ return error;
++
++ // clear bits {0-7,16-31} of the debug control register (DR7)
++ error = ReadRegisterRaw(m_reg_info.first_dr + 7, reg_value);
++ if (error.Fail())
++ return error;
++ bit_mask = 0xFF | (0xFFFF << 16);
++ uint64_t control_bits = reg_value.GetAsUInt64() & ~bit_mask;
++ return WriteRegisterRaw(m_reg_info.first_dr + 7, RegisterValue(control_bits));
++}
++
++uint32_t NativeRegisterContextLinux_x86_64::SetHardwareWatchpoint(
++ lldb::addr_t addr, size_t size, uint32_t watch_flags) {
++ Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_WATCHPOINTS));
++ const uint32_t num_hw_watchpoints = NumSupportedHardwareWatchpoints();
++ for (uint32_t wp_index = 0; wp_index < num_hw_watchpoints; ++wp_index) {
++ bool is_vacant;
++ Error error = IsWatchpointVacant(wp_index, is_vacant);
++ if (is_vacant) {
++ error = SetHardwareWatchpointWithIndex(addr, size, watch_flags, wp_index);
++ if (error.Success())
++ return wp_index;
++ }
++ if (error.Fail() && log) {
++ log->Printf("NativeRegisterContextLinux_x86_64::%s Error: %s",
++ __FUNCTION__, error.AsCString());
++ }
++ }
++ return LLDB_INVALID_INDEX32;
++}
++
++lldb::addr_t
++NativeRegisterContextLinux_x86_64::GetWatchpointAddress(uint32_t wp_index) {
++ if (wp_index >= NumSupportedHardwareWatchpoints())
++ return LLDB_INVALID_ADDRESS;
++ RegisterValue reg_value;
++ if (ReadRegisterRaw(m_reg_info.first_dr + wp_index, reg_value).Fail())
++ return LLDB_INVALID_ADDRESS;
++ return reg_value.GetAsUInt64();
++}
++
++uint32_t NativeRegisterContextLinux_x86_64::NumSupportedHardwareWatchpoints() {
++ // Available debug address registers: dr0, dr1, dr2, dr3
++ return 4;
++}
++
++#endif // defined(__i386__) || defined(__x86_64__)
diff --git a/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.h b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.h
new file mode 100644
index 0000000000..8ca1e06c6f
--- /dev/null
+++ b/lldb-netbsd/patches/patch-source_Plugins_Process_NetBSD_NativeRegisterContextNetBSD__x86__64.h
@@ -0,0 +1,151 @@
+$NetBSD$
+
+--- source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.h.orig 2017-03-01 11:04:51.743978339 +0000
++++ source/Plugins/Process/NetBSD/NativeRegisterContextNetBSD_x86_64.h
+@@ -0,0 +1,146 @@
++//===-- NativeRegisterContextLinux_x86_64.h ---------------------*- C++ -*-===//
++//
++// The LLVM Compiler Infrastructure
++//
++// This file is distributed under the University of Illinois Open Source
++// License. See LICENSE.TXT for details.
++//
++//===----------------------------------------------------------------------===//
++
++#if defined(__i386__) || defined(__x86_64__)
++
++#ifndef lldb_NativeRegisterContextLinux_x86_64_h
++#define lldb_NativeRegisterContextLinux_x86_64_h
++
++#include "Plugins/Process/Linux/NativeRegisterContextLinux.h"
++#include "Plugins/Process/Utility/RegisterContext_x86.h"
++#include "Plugins/Process/Utility/lldb-x86-register-enums.h"
++
++namespace lldb_private {
++namespace process_linux {
++
++class NativeProcessLinux;
++
++class NativeRegisterContextLinux_x86_64 : public NativeRegisterContextLinux {
++public:
++ NativeRegisterContextLinux_x86_64(const ArchSpec &target_arch,
++ NativeThreadProtocol &native_thread,
++ uint32_t concrete_frame_idx);
++
++ uint32_t GetRegisterSetCount() const override;
++
++ const RegisterSet *GetRegisterSet(uint32_t set_index) const override;
++
++ uint32_t GetUserRegisterCount() const override;
++
++ Error ReadRegister(const RegisterInfo *reg_info,
++ RegisterValue ®_value) override;
++
++ Error WriteRegister(const RegisterInfo *reg_info,
++ const RegisterValue ®_value) override;
++
++ Error ReadAllRegisterValues(lldb::DataBufferSP &data_sp) override;
++
++ Error WriteAllRegisterValues(const lldb::DataBufferSP &data_sp) override;
++
++ Error IsWatchpointHit(uint32_t wp_index, bool &is_hit) override;
++
++ Error GetWatchpointHitIndex(uint32_t &wp_index,
++ lldb::addr_t trap_addr) override;
++
++ Error IsWatchpointVacant(uint32_t wp_index, bool &is_vacant) override;
++
++ bool ClearHardwareWatchpoint(uint32_t wp_index) override;
++
++ Error ClearAllHardwareWatchpoints() override;
++
++ Error SetHardwareWatchpointWithIndex(lldb::addr_t addr, size_t size,
++ uint32_t watch_flags, uint32_t wp_index);
++
++ uint32_t SetHardwareWatchpoint(lldb::addr_t addr, size_t size,
++ uint32_t watch_flags) override;
++
++ lldb::addr_t GetWatchpointAddress(uint32_t wp_index) override;
++
++ uint32_t NumSupportedHardwareWatchpoints() override;
++
++protected:
++ void *GetGPRBuffer() override { return &m_gpr_x86_64; }
++
++ void *GetFPRBuffer() override;
++
++ size_t GetFPRSize() override;
++
++ Error ReadFPR() override;
++
++ Error WriteFPR() override;
++
++private:
++ // Private member types.
++ enum class XStateType { Invalid, FXSAVE, XSAVE };
++ enum class RegSet { gpr, fpu, avx, mpx };
++
++ // Info about register ranges.
++ struct RegInfo {
++ uint32_t num_registers;
++ uint32_t num_gpr_registers;
++ uint32_t num_fpr_registers;
++ uint32_t num_avx_registers;
++ uint32_t num_mpx_registers;
++ uint32_t last_gpr;
++ uint32_t first_fpr;
++ uint32_t last_fpr;
++ uint32_t first_st;
++ uint32_t last_st;
++ uint32_t first_mm;
++ uint32_t last_mm;
++ uint32_t first_xmm;
++ uint32_t last_xmm;
++ uint32_t first_ymm;
++ uint32_t last_ymm;
++ uint32_t first_mpxr;
++ uint32_t last_mpxr;
++ uint32_t first_mpxc;
++ uint32_t last_mpxc;
++ uint32_t first_dr;
++ uint32_t gpr_flags;
++ };
++
++ // Private member variables.
++ mutable XStateType m_xstate_type;
++ FPR m_fpr; // Extended States Area, named FPR for historical reasons.
++ IOVEC m_iovec;
++ YMM m_ymm_set;
++ MPX m_mpx_set;
++ RegInfo m_reg_info;
++ uint64_t m_gpr_x86_64[k_num_gpr_registers_x86_64];
++ uint32_t m_fctrl_offset_in_userarea;
++
++ // Private member methods.
++ bool IsCPUFeatureAvailable(RegSet feature_code) const;
++
++ bool IsRegisterSetAvailable(uint32_t set_index) const;
++
++ bool IsGPR(uint32_t reg_index) const;
++
++ bool IsFPR(uint32_t reg_index) const;
++
++ bool CopyXSTATEtoYMM(uint32_t reg_index, lldb::ByteOrder byte_order);
++
++ bool CopyYMMtoXSTATE(uint32_t reg, lldb::ByteOrder byte_order);
++
++ bool IsAVX(uint32_t reg_index) const;
++
++ bool CopyXSTATEtoMPX(uint32_t reg);
++
++ bool CopyMPXtoXSTATE(uint32_t reg);
++
++ bool IsMPX(uint32_t reg_index) const;
++};
++
++} // namespace process_linux
++} // namespace lldb_private
++
++#endif // #ifndef lldb_NativeRegisterContextLinux_x86_64_h
++
++#endif // defined(__i386__) || defined(__x86_64__)
Home |
Main Index |
Thread Index |
Old Index