//===-- RegisterContextNetBSD_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. // //===---------------------------------------------------------------------===// #include #include #include "llvm/Support/Compiler.h" #include "RegisterContextPOSIX_x86.h" #include "RegisterContextNetBSD_x86_64.h" using namespace lldb_private; using namespace lldb; // src/sys/arch/amd64/include/frame_regs.h typedef struct _GPR { uint64_t rdi; /* 0 */ uint64_t rsi; /* 1 */ uint64_t rdx; /* 2 */ uint64_t rcx; /* 3 */ uint64_t r8; /* 4 */ uint64_t r9; /* 5 */ uint64_t r10; /* 6 */ uint64_t r11; /* 7 */ uint64_t r12; /* 8 */ uint64_t r13; /* 9 */ uint64_t r14; /* 10 */ uint64_t r15; /* 11 */ uint64_t rbp; /* 12 */ uint64_t rbx; /* 13 */ uint64_t rax; /* 14 */ uint64_t gs; /* 15 */ uint64_t fs; /* 16 */ uint64_t es; /* 17 */ uint64_t ds; /* 18 */ uint64_t trapno; /* 19 */ uint64_t err; /* 20 */ uint64_t rip; /* 21 */ uint64_t cs; /* 22 */ uint64_t rflags; /* 23 */ uint64_t rsp; /* 24 */ uint64_t ss; /* 25 */ } GPR; /* * As of NetBSD-7.99.25 there is no support for debug registers * https://en.wikipedia.org/wiki/X86_debug_register */ /* * src/sys/arch/amd64/include/mcontext.h * * typedef struct { * __gregset_t __gregs; * __greg_t _mc_tlsbase; * __fpregset_t __fpregs; * } mcontext_t; */ struct UserArea { GPR gpr; uint64_t mc_tlsbase; FPR fpr; }; //--------------------------------------------------------------------------- // Cherry-pick parts of RegisterInfos_x86_64.h, without debug registers //--------------------------------------------------------------------------- // Computes the offset of the given GPR in the user data area. #define GPR_OFFSET(regname) \ (LLVM_EXTENSION offsetof(GPR, regname)) // Computes the offset of the given FPR in the extended data area. #define FPR_OFFSET(regname) \ (LLVM_EXTENSION offsetof(UserArea, fpr) + \ LLVM_EXTENSION offsetof(FPR, xstate) + \ LLVM_EXTENSION offsetof(FXSAVE, regname)) // Computes the offset of the YMM register assembled from register halves. // Based on DNBArchImplX86_64.cpp from debugserver #define YMM_OFFSET(reg_index) \ (LLVM_EXTENSION offsetof(UserArea, fpr) + \ LLVM_EXTENSION offsetof(FPR, xstate) + \ LLVM_EXTENSION offsetof(XSAVE, ymmh[0]) + \ (32 * reg_index)) // Number of bytes needed to represent a FPR. #define FPR_SIZE(reg) sizeof(((FXSAVE*)NULL)->reg) // Number of bytes needed to represent the i'th FP register. #define FP_SIZE sizeof(((MMSReg*)NULL)->bytes) // Number of bytes needed to represent an XMM register. #define XMM_SIZE sizeof(XMMReg) // Number of bytes needed to represent a YMM register. #define YMM_SIZE sizeof(YMMReg) // RegisterKind: EHFrame, DWARF, Generic, Process Plugin, LLDB // Note that the size and offset will be updated by platform-specific classes. #define DEFINE_GPR(reg, alt, kind1, kind2, kind3, kind4) \ { #reg, alt, sizeof(((GPR*)NULL)->reg), GPR_OFFSET(reg), eEncodingUint, \ eFormatHex, { kind1, kind2, kind3, kind4, lldb_##reg##_x86_64 }, NULL, NULL } #define DEFINE_FPR(name, reg, kind1, kind2, kind3, kind4) \ { #name, NULL, FPR_SIZE(reg), FPR_OFFSET(reg), eEncodingUint, \ eFormatHex, { kind1, kind2, kind3, kind4, lldb_##name##_x86_64 }, NULL, NULL } #define DEFINE_FP_ST(reg, i) \ { #reg#i, NULL, FP_SIZE, LLVM_EXTENSION FPR_OFFSET(stmm[i]), \ eEncodingVector, eFormatVectorOfUInt8, \ { dwarf_st##i##_x86_64, dwarf_st##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_st##i##_x86_64 }, \ NULL, NULL } #define DEFINE_FP_MM(reg, i) \ { #reg#i, NULL, sizeof(uint64_t), LLVM_EXTENSION FPR_OFFSET(stmm[i]), \ eEncodingUint, eFormatHex, \ { dwarf_mm##i##_x86_64, dwarf_mm##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_mm##i##_x86_64 }, \ NULL, NULL } #define DEFINE_XMM(reg, i) \ { #reg#i, NULL, XMM_SIZE, LLVM_EXTENSION FPR_OFFSET(reg[i]), \ eEncodingVector, eFormatVectorOfUInt8, \ { dwarf_##reg##i##_x86_64, dwarf_##reg##i##_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_x86_64}, \ NULL, NULL } #define DEFINE_YMM(reg, i) \ { #reg#i, NULL, YMM_SIZE, LLVM_EXTENSION YMM_OFFSET(i), \ eEncodingVector, eFormatVectorOfUInt8, \ { dwarf_##reg##i##h_x86_64, dwarf_##reg##i##h_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg##i##_x86_64 }, \ NULL, NULL } #define DEFINE_GPR_PSEUDO_32(reg32, reg64) \ { #reg32, NULL, 4, GPR_OFFSET(reg64), eEncodingUint, \ eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg32##_x86_64 }, RegisterContextPOSIX_x86::g_contained_##reg64, RegisterContextPOSIX_x86::g_invalidate_##reg64 } #define DEFINE_GPR_PSEUDO_16(reg16, reg64) \ { #reg16, NULL, 2, GPR_OFFSET(reg64), eEncodingUint, \ eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg16##_x86_64 }, RegisterContextPOSIX_x86::g_contained_##reg64, RegisterContextPOSIX_x86::g_invalidate_##reg64 } #define DEFINE_GPR_PSEUDO_8H(reg8, reg64) \ { #reg8, NULL, 1, GPR_OFFSET(reg64)+1, eEncodingUint, \ eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg8##_x86_64 }, RegisterContextPOSIX_x86::g_contained_##reg64, RegisterContextPOSIX_x86::g_invalidate_##reg64 } #define DEFINE_GPR_PSEUDO_8L(reg8, reg64) \ { #reg8, NULL, 1, GPR_OFFSET(reg64), eEncodingUint, \ eFormatHex, { LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, lldb_##reg8##_x86_64 }, RegisterContextPOSIX_x86::g_contained_##reg64, RegisterContextPOSIX_x86::g_invalidate_##reg64 } static RegisterInfo g_register_infos_x86_64[] = { // General purpose registers. EH_Frame, DWARF, Generic, Process Plugin DEFINE_GPR(rax, nullptr, dwarf_rax_x86_64, dwarf_rax_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(rbx, nullptr, dwarf_rbx_x86_64, dwarf_rbx_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(rcx, "arg4", dwarf_rcx_x86_64, dwarf_rcx_x86_64, LLDB_REGNUM_GENERIC_ARG4, LLDB_INVALID_REGNUM), DEFINE_GPR(rdx, "arg3", dwarf_rdx_x86_64, dwarf_rdx_x86_64, LLDB_REGNUM_GENERIC_ARG3, LLDB_INVALID_REGNUM), DEFINE_GPR(rdi, "arg1", dwarf_rdi_x86_64, dwarf_rdi_x86_64, LLDB_REGNUM_GENERIC_ARG1, LLDB_INVALID_REGNUM), DEFINE_GPR(rsi, "arg2", dwarf_rsi_x86_64, dwarf_rsi_x86_64, LLDB_REGNUM_GENERIC_ARG2, LLDB_INVALID_REGNUM), DEFINE_GPR(rbp, "fp", dwarf_rbp_x86_64, dwarf_rbp_x86_64, LLDB_REGNUM_GENERIC_FP, LLDB_INVALID_REGNUM), DEFINE_GPR(rsp, "sp", dwarf_rsp_x86_64, dwarf_rsp_x86_64, LLDB_REGNUM_GENERIC_SP, LLDB_INVALID_REGNUM), DEFINE_GPR(r8, "arg5", dwarf_r8_x86_64, dwarf_r8_x86_64, LLDB_REGNUM_GENERIC_ARG5, LLDB_INVALID_REGNUM), DEFINE_GPR(r9, "arg6", dwarf_r9_x86_64, dwarf_r9_x86_64, LLDB_REGNUM_GENERIC_ARG6, LLDB_INVALID_REGNUM), DEFINE_GPR(r10, nullptr, dwarf_r10_x86_64, dwarf_r10_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(r11, nullptr, dwarf_r11_x86_64, dwarf_r11_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(r12, nullptr, dwarf_r12_x86_64, dwarf_r12_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(r13, nullptr, dwarf_r13_x86_64, dwarf_r13_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(r14, nullptr, dwarf_r14_x86_64, dwarf_r14_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(r15, nullptr, dwarf_r15_x86_64, dwarf_r15_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(rip, "pc", dwarf_rip_x86_64, dwarf_rip_x86_64, LLDB_REGNUM_GENERIC_PC, LLDB_INVALID_REGNUM), DEFINE_GPR(rflags, "flags", dwarf_rflags_x86_64, dwarf_rflags_x86_64, LLDB_REGNUM_GENERIC_FLAGS, LLDB_INVALID_REGNUM), DEFINE_GPR(cs, nullptr, dwarf_cs_x86_64, dwarf_cs_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(fs, nullptr, dwarf_fs_x86_64, dwarf_fs_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(gs, nullptr, dwarf_gs_x86_64, dwarf_gs_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(ss, nullptr, dwarf_ss_x86_64, dwarf_ss_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(ds, nullptr, dwarf_ds_x86_64, dwarf_ds_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR(es, nullptr, dwarf_es_x86_64, dwarf_es_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_GPR_PSEUDO_32(eax, rax), DEFINE_GPR_PSEUDO_32(ebx, rbx), DEFINE_GPR_PSEUDO_32(ecx, rcx), DEFINE_GPR_PSEUDO_32(edx, rdx), DEFINE_GPR_PSEUDO_32(edi, rdi), DEFINE_GPR_PSEUDO_32(esi, rsi), DEFINE_GPR_PSEUDO_32(ebp, rbp), DEFINE_GPR_PSEUDO_32(esp, rsp), DEFINE_GPR_PSEUDO_32(r8d, r8), DEFINE_GPR_PSEUDO_32(r9d, r9), DEFINE_GPR_PSEUDO_32(r10d, r10), DEFINE_GPR_PSEUDO_32(r11d, r11), DEFINE_GPR_PSEUDO_32(r12d, r12), DEFINE_GPR_PSEUDO_32(r13d, r13), DEFINE_GPR_PSEUDO_32(r14d, r14), DEFINE_GPR_PSEUDO_32(r15d, r15), DEFINE_GPR_PSEUDO_16(ax, rax), DEFINE_GPR_PSEUDO_16(bx, rbx), DEFINE_GPR_PSEUDO_16(cx, rcx), DEFINE_GPR_PSEUDO_16(dx, rdx), DEFINE_GPR_PSEUDO_16(di, rdi), DEFINE_GPR_PSEUDO_16(si, rsi), DEFINE_GPR_PSEUDO_16(bp, rbp), DEFINE_GPR_PSEUDO_16(sp, rsp), DEFINE_GPR_PSEUDO_16(r8w, r8), DEFINE_GPR_PSEUDO_16(r9w, r9), DEFINE_GPR_PSEUDO_16(r10w, r10), DEFINE_GPR_PSEUDO_16(r11w, r11), DEFINE_GPR_PSEUDO_16(r12w, r12), DEFINE_GPR_PSEUDO_16(r13w, r13), DEFINE_GPR_PSEUDO_16(r14w, r14), DEFINE_GPR_PSEUDO_16(r15w, r15), DEFINE_GPR_PSEUDO_8H(ah, rax), DEFINE_GPR_PSEUDO_8H(bh, rbx), DEFINE_GPR_PSEUDO_8H(ch, rcx), DEFINE_GPR_PSEUDO_8H(dh, rdx), DEFINE_GPR_PSEUDO_8L(al, rax), DEFINE_GPR_PSEUDO_8L(bl, rbx), DEFINE_GPR_PSEUDO_8L(cl, rcx), DEFINE_GPR_PSEUDO_8L(dl, rdx), DEFINE_GPR_PSEUDO_8L(dil, rdi), DEFINE_GPR_PSEUDO_8L(sil, rsi), DEFINE_GPR_PSEUDO_8L(bpl, rbp), DEFINE_GPR_PSEUDO_8L(spl, rsp), DEFINE_GPR_PSEUDO_8L(r8l, r8), DEFINE_GPR_PSEUDO_8L(r9l, r9), DEFINE_GPR_PSEUDO_8L(r10l, r10), DEFINE_GPR_PSEUDO_8L(r11l, r11), DEFINE_GPR_PSEUDO_8L(r12l, r12), DEFINE_GPR_PSEUDO_8L(r13l, r13), DEFINE_GPR_PSEUDO_8L(r14l, r14), DEFINE_GPR_PSEUDO_8L(r15l, r15), // i387 Floating point registers. EH_frame, DWARF, Generic, Process Plugin DEFINE_FPR(fctrl, fctrl, dwarf_fctrl_x86_64, dwarf_fctrl_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(fstat, fstat, dwarf_fstat_x86_64, dwarf_fstat_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(ftag, ftag, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(fop, fop, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(fiseg, ptr.i386_.fiseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(fioff, ptr.i386_.fioff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(foseg, ptr.i386_.foseg, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(fooff, ptr.i386_.fooff, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(mxcsr, mxcsr, dwarf_mxcsr_x86_64, dwarf_mxcsr_x86_64, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), DEFINE_FPR(mxcsrmask, mxcsrmask, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM, LLDB_INVALID_REGNUM), // FP registers. DEFINE_FP_ST(st, 0), DEFINE_FP_ST(st, 1), DEFINE_FP_ST(st, 2), DEFINE_FP_ST(st, 3), DEFINE_FP_ST(st, 4), DEFINE_FP_ST(st, 5), DEFINE_FP_ST(st, 6), DEFINE_FP_ST(st, 7), DEFINE_FP_MM(mm, 0), DEFINE_FP_MM(mm, 1), DEFINE_FP_MM(mm, 2), DEFINE_FP_MM(mm, 3), DEFINE_FP_MM(mm, 4), DEFINE_FP_MM(mm, 5), DEFINE_FP_MM(mm, 6), DEFINE_FP_MM(mm, 7), // XMM registers DEFINE_XMM(xmm, 0), DEFINE_XMM(xmm, 1), DEFINE_XMM(xmm, 2), DEFINE_XMM(xmm, 3), DEFINE_XMM(xmm, 4), DEFINE_XMM(xmm, 5), DEFINE_XMM(xmm, 6), DEFINE_XMM(xmm, 7), DEFINE_XMM(xmm, 8), DEFINE_XMM(xmm, 9), DEFINE_XMM(xmm, 10), DEFINE_XMM(xmm, 11), DEFINE_XMM(xmm, 12), DEFINE_XMM(xmm, 13), DEFINE_XMM(xmm, 14), DEFINE_XMM(xmm, 15), // Copy of YMM registers assembled from xmm and ymmh DEFINE_YMM(ymm, 0), DEFINE_YMM(ymm, 1), DEFINE_YMM(ymm, 2), DEFINE_YMM(ymm, 3), DEFINE_YMM(ymm, 4), DEFINE_YMM(ymm, 5), DEFINE_YMM(ymm, 6), DEFINE_YMM(ymm, 7), DEFINE_YMM(ymm, 8), DEFINE_YMM(ymm, 9), DEFINE_YMM(ymm, 10), DEFINE_YMM(ymm, 11), DEFINE_YMM(ymm, 12), DEFINE_YMM(ymm, 13), DEFINE_YMM(ymm, 14), DEFINE_YMM(ymm, 15), }; //--------------------------------------------------------------------------- // End of cherry-pick of RegisterInfos_x86_64.h //--------------------------------------------------------------------------- static const RegisterInfo * PrivateGetRegisterInfoPtr (const lldb_private::ArchSpec& target_arch) { switch (target_arch.GetMachine()) { case llvm::Triple::x86_64: return g_register_infos_x86_64; default: assert(false && "Unhandled target architecture."); return nullptr; } } static uint32_t PrivateGetRegisterCount (const lldb_private::ArchSpec& target_arch) { switch (target_arch.GetMachine()) { case llvm::Triple::x86_64: return static_cast (sizeof (g_register_infos_x86_64) / sizeof (g_register_infos_x86_64 [0])); default: assert(false && "Unhandled target architecture."); return 0; } } RegisterContextNetBSD_x86_64::RegisterContextNetBSD_x86_64(const ArchSpec &target_arch) : lldb_private::RegisterInfoInterface(target_arch), m_register_info_p (PrivateGetRegisterInfoPtr (target_arch)), m_register_count (PrivateGetRegisterCount (target_arch)) { } size_t RegisterContextNetBSD_x86_64::GetGPRSize() const { return sizeof(GPR); } const RegisterInfo * RegisterContextNetBSD_x86_64::GetRegisterInfo() const { return m_register_info_p; } uint32_t RegisterContextNetBSD_x86_64::GetRegisterCount () const { return m_register_count; }