diff options
Diffstat (limited to 'source/Plugins/Process/POSIX/RegisterContextFreeBSD_x86_64.cpp')
| -rw-r--r-- | source/Plugins/Process/POSIX/RegisterContextFreeBSD_x86_64.cpp | 136 |
1 files changed, 136 insertions, 0 deletions
diff --git a/source/Plugins/Process/POSIX/RegisterContextFreeBSD_x86_64.cpp b/source/Plugins/Process/POSIX/RegisterContextFreeBSD_x86_64.cpp new file mode 100644 index 000000000000..0fb9dc1cb3dc --- /dev/null +++ b/source/Plugins/Process/POSIX/RegisterContextFreeBSD_x86_64.cpp @@ -0,0 +1,136 @@ +//===-- RegisterContextFreeBSD_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. +// +//===---------------------------------------------------------------------===// + +#include "RegisterContextFreeBSD_x86_64.h" +#include <vector> + +using namespace lldb_private; + +// Computes the offset of the given GPR in the user data area. +#define GPR_OFFSET(regname) \ + (offsetof(GPR, regname)) + +// Update the FreeBSD specific information (offset and size). +#define UPDATE_GPR_INFO(reg) \ +do { \ + GetRegisterContext()[gpr_##reg].byte_size = sizeof(GPR::reg); \ + GetRegisterContext()[gpr_##reg].byte_offset = GPR_OFFSET(reg); \ +} while(false); + +#define UPDATE_I386_GPR_INFO(i386_reg, reg) \ +do { \ + GetRegisterContext()[gpr_##i386_reg].byte_offset = GPR_OFFSET(reg); \ +} while(false); + +typedef struct _GPR +{ + uint64_t r15; + uint64_t r14; + uint64_t r13; + uint64_t r12; + uint64_t r11; + uint64_t r10; + uint64_t r9; + uint64_t r8; + uint64_t rdi; + uint64_t rsi; + uint64_t rbp; + uint64_t rbx; + uint64_t rdx; + uint64_t rcx; + uint64_t rax; + uint32_t trapno; + uint16_t fs; + uint16_t gs; + uint32_t err; + uint16_t es; + uint16_t ds; + uint64_t rip; + uint64_t cs; + uint64_t rflags; + uint64_t rsp; + uint64_t ss; +} GPR; + +// Use a singleton function to avoid global constructors in shared libraries. +static std::vector<RegisterInfo> & GetRegisterContext () { + static std::vector<RegisterInfo> g_register_infos; + return g_register_infos; +} + + +RegisterContextFreeBSD_x86_64::RegisterContextFreeBSD_x86_64(Thread &thread, uint32_t concrete_frame_idx): + RegisterContext_x86_64(thread, concrete_frame_idx) +{ +} + +size_t +RegisterContextFreeBSD_x86_64::GetGPRSize() +{ + return sizeof(GPR); +} + +const RegisterInfo * +RegisterContextFreeBSD_x86_64::GetRegisterInfo() +{ + // Allocate RegisterInfo only once + if (GetRegisterContext().empty()) + { + // Copy the register information from base class + const RegisterInfo *base_info = RegisterContext_x86_64::GetRegisterInfo(); + if (base_info) + { + GetRegisterContext().insert(GetRegisterContext().end(), &base_info[0], &base_info[k_num_registers]); + // Update the FreeBSD specific register information (offset and size). + UpdateRegisterInfo(); + } + } + return &GetRegisterContext()[0]; +} + +void +RegisterContextFreeBSD_x86_64::UpdateRegisterInfo() +{ + UPDATE_GPR_INFO(rax); + UPDATE_GPR_INFO(rbx); + UPDATE_GPR_INFO(rcx); + UPDATE_GPR_INFO(rdx); + UPDATE_GPR_INFO(rdi); + UPDATE_GPR_INFO(rsi); + UPDATE_GPR_INFO(rbp); + UPDATE_GPR_INFO(rsp); + UPDATE_GPR_INFO(r8); + UPDATE_GPR_INFO(r9); + UPDATE_GPR_INFO(r10); + UPDATE_GPR_INFO(r11); + UPDATE_GPR_INFO(r12); + UPDATE_GPR_INFO(r13); + UPDATE_GPR_INFO(r14); + UPDATE_GPR_INFO(r15); + UPDATE_GPR_INFO(rip); + UPDATE_GPR_INFO(rflags); + UPDATE_GPR_INFO(cs); + UPDATE_GPR_INFO(fs); + UPDATE_GPR_INFO(gs); + UPDATE_GPR_INFO(ss); + UPDATE_GPR_INFO(ds); + UPDATE_GPR_INFO(es); + + UPDATE_I386_GPR_INFO(eax, rax); + UPDATE_I386_GPR_INFO(ebx, rbx); + UPDATE_I386_GPR_INFO(ecx, rcx); + UPDATE_I386_GPR_INFO(edx, rdx); + UPDATE_I386_GPR_INFO(edi, rdi); + UPDATE_I386_GPR_INFO(esi, rsi); + UPDATE_I386_GPR_INFO(ebp, rbp); + UPDATE_I386_GPR_INFO(esp, rsp); + UPDATE_I386_GPR_INFO(eip, rip); + UPDATE_I386_GPR_INFO(eflags, rflags); +} + |