/* * Copyright 2003 PathScale, Inc. * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com) * * Licensed under the GPL */ #ifndef __SYSDEP_X86_64_PTRACE_H #define __SYSDEP_X86_64_PTRACE_H #include "user_constants.h" #include "sysdep/faultinfo.h" #define MAX_REG_OFFSET (UM_FRAME_SIZE) #define MAX_REG_NR ((MAX_REG_OFFSET) / sizeof(unsigned long)) #include "skas_ptregs.h" #define REGS_IP(r) ((r)[HOST_IP]) #define REGS_SP(r) ((r)[HOST_SP]) #define REGS_RBX(r) ((r)[HOST_RBX]) #define REGS_RCX(r) ((r)[HOST_RCX]) #define REGS_RDX(r) ((r)[HOST_RDX]) #define REGS_RSI(r) ((r)[HOST_RSI]) #define REGS_RDI(r) ((r)[HOST_RDI]) #define REGS_RBP(r) ((r)[HOST_RBP]) #define REGS_RAX(r) ((r)[HOST_RAX]) #define REGS_R8(r) ((r)[HOST_R8]) #define REGS_R9(r) ((r)[HOST_R9]) #define REGS_R10(r) ((r)[HOST_R10]) #define REGS_R11(r) ((r)[HOST_R11]) #define REGS_R12(r) ((r)[HOST_R12]) #define REGS_R13(r) ((r)[HOST_R13]) #define REGS_R14(r) ((r)[HOST_R14]) #define REGS_R15(r) ((r)[HOST_R15]) #define REGS_CS(r) ((r)[HOST_CS]) #define REGS_EFLAGS(r) ((r)[HOST_EFLAGS]) #define REGS_SS(r) ((r)[HOST_SS]) #define HOST_FS_BASE 21 #define HOST_GS_BASE 22 #define HOST_DS 23 #define HOST_ES 24 #define HOST_FS 25 #define HOST_GS 26 /* Also defined in asm/ptrace-x86_64.h, but not in libc headers. So, these * are already defined for kernel code, but not for userspace code. */ #ifndef FS_BASE /* These aren't defined in ptrace.h, but exist in struct user_regs_struct, * which is what x86_64 ptrace actually uses. */ #define FS_BASE (HOST_FS_BASE * sizeof(long)) #define GS_BASE (HOST_GS_BASE * sizeof(long)) #define DS (HOST_DS * sizeof(long)) #define ES (HOST_ES * sizeof(long)) #define FS (HOST_FS * sizeof(long)) #define GS (HOST_GS * sizeof(long)) #endif #define REGS_FS_BASE(r) ((r)[HOST_FS_BASE]) #define REGS_GS_BASE(r) ((r)[HOST_GS_BASE]) #define REGS_DS(r) ((r)[HOST_DS]) #define REGS_ES(r) ((r)[HOST_ES]) #define REGS_FS(r) ((r)[HOST_FS]) #define REGS_GS(r) ((r)[HOST_GS]) #define REGS_ORIG_RAX(r) ((r)[HOST_ORIG_RAX]) #define REGS_SET_SYSCALL_RETURN(r, res) REGS_RAX(r) = (res) #define REGS_RESTART_SYSCALL(r) IP_RESTART_SYSCALL(REGS_IP(r)) #define REGS_SEGV_IS_FIXABLE(r) SEGV_IS_FIXABLE((r)->trap_type) #define REGS_FAULT_ADDR(r) ((r)->fault_addr) #define REGS_FAULT_WRITE(r) FAULT_WRITE((r)->fault_type) #define REGS_TRAP(r) ((r)->trap_type) #define REGS_ERR(r) ((r)->fault_type) struct uml_pt_regs { unsigned long gp[MAX_REG_NR]; unsigned long fp[HOST_FP_SIZE]; struct faultinfo faultinfo; long syscall; int is_user; }; #define EMPTY_UML_PT_REGS { } #define UPT_RBX(r) REGS_RBX((r)->gp) #define UPT_RCX(r) REGS_RCX((r)->gp) #define UPT_RDX(r) REGS_RDX((r)->gp) #define UPT_RSI(r) REGS_RSI((r)->gp) #define UPT_RDI(r) REGS_RDI((r)->gp) #define UPT_RBP(r) REGS_RBP((r)->gp) #define UPT_RAX(r) REGS_RAX((r)->gp) #define UPT_R8(r) REGS_R8((r)->gp) #define UPT_R9(r) REGS_R9((r)->gp) #define UPT_R10(r) REGS_R10((r)->gp) #define UPT_R11(r) REGS_R11((r)->gp) #define UPT_R12(r) REGS_R12((r)->gp) #define UPT_R13(r) REGS_R13((r)->gp) #define UPT_R14(r) REGS_R14((r)->gp) #define UPT_R15(r) REGS_R15((r)->gp) #define UPT_CS(r) REGS_CS((r)->gp) #define UPT_FS_BASE(r) REGS_FS_BASE((r)->gp) #define UPT_FS(r) REGS_FS((r)->gp) #define UPT_GS_BASE(r) REGS_GS_BASE((r)->gp) #define UPT_GS(r) REGS_GS((r)->gp) #define UPT_DS(r) REGS_DS((r)->gp) #define UPT_ES(r) REGS_ES((r)->gp) #define UPT_CS(r) REGS_CS((r)->gp) #define UPT_SS(r) REGS_SS((r)->gp) #define UPT_ORIG_RAX(r) REGS_ORIG_RAX((r)->gp) #define UPT_IP(r) REGS_IP((r)->gp) #define UPT_SP(r) REGS_SP((r)->gp) #define UPT_EFLAGS(r) REGS_EFLAGS((r)->gp) #define UPT_SYSCALL_NR(r) ((r)->syscall) #define UPT_SYSCALL_RET(r) UPT_RAX(r) extern int user_context(unsigned long sp); #define UPT_IS_USER(r) ((r)->is_user) #define UPT_SYSCALL_ARG1(r) UPT_RDI(r) #define UPT_SYSCALL_ARG2(r) UPT_RSI(r) #define UPT_SYSCALL_ARG3(r) UPT_RDX(r) #define UPT_SYSCALL_ARG4(r) UPT_R10(r) #define UPT_SYSCALL_ARG5(r) UPT_R8(r) #define UPT_SYSCALL_ARG6(r) UPT_R9(r) struct syscall_args { unsigned long args[6]; }; #define SYSCALL_ARGS(r) ((struct syscall_args) \ { .args = { UPT_SYSCALL_ARG1(r), \ UPT_SYSCALL_ARG2(r), \ UPT_SYSCALL_ARG3(r), \ UPT_SYSCALL_ARG4(r), \ UPT_SYSCALL_ARG5(r), \ UPT_SYSCALL_ARG6(r) } } ) #define UPT_REG(regs, reg) \ ({ unsigned long val; \ switch(reg){ \ case R8: val = UPT_R8(regs); break; \ case R9: val = UPT_R9(regs); break; \ case R10: val = UPT_R10(regs); break; \ case R11: val = UPT_R11(regs); break; \ case R12: val = UPT_R12(regs); break; \ case R13: val = UPT_R13(regs); break; \ case R14: val = UPT_R14(regs); break; \ case R15: val = UPT_R15(regs); break; \ case RIP: val = UPT_IP(regs); break; \ case RSP: val = UPT_SP(regs); break; \ case RAX: val = UPT_RAX(regs); break; \ case RBX: val = UPT_RBX(regs); break; \ case RCX: val = UPT_RCX(regs); break; \ case RDX: val = UPT_RDX(regs); break; \ case RSI: val = UPT_RSI(regs); break; \ case RDI: val = UPT_RDI(regs); break; \ case RBP: val = UPT_RBP(regs); break; \ case ORIG_RAX: val = UPT_ORIG_RAX(regs); break; \ case CS: val = UPT_CS(regs); break; \ case SS: val = UPT_SS(regs); break; \ case FS_BASE: val = UPT_FS_BASE(regs); break; \ case GS_BASE: val = UPT_GS_BASE(regs); break; \ case DS: val = UPT_DS(regs); break; \ case ES: val = UPT_ES(regs); break; \ case FS : val = UPT_FS (regs); break; \ case GS: val = UPT_GS(regs); break; \ case EFLAGS: val = UPT_EFLAGS(regs); break; \ default : \ panic("Bad register in UPT_REG : %d\n", reg); \ val = -1; \ } \ val; \ }) #define UPT_SET(regs, reg, val) \ ({ unsigned long __upt_val = val; \ switch(reg){ \ case R8: UPT_R8(regs) = __upt_val; break; \ case R9: UPT_R9(regs) = __upt_val; break; \ case R10: UPT_R10(regs) = __upt_val; break; \ case R11: UPT_R11(regs) = __upt_val; break; \ case R12: UPT_R12(regs) = __upt_val; break; \ case R13: UPT_R13(regs) = __upt_val; break; \ case R14: UPT_R14(regs) = __upt_val; break; \ case R15: UPT_R15(regs) = __upt_val; break; \ case RIP: UPT_IP(regs) = __upt_val; break; \ case RSP: UPT_SP(regs) = __upt_val; break; \ case RAX: UPT_RAX(regs) = __upt_val; break; \ case RBX: UPT_RBX(regs) = __upt_val; break; \ case RCX: UPT_RCX(regs) = __upt_val; break; \ case RDX: UPT_RDX(regs) = __upt_val; break; \ case RSI: UPT_RSI(regs) = __upt_val; break; \ case RDI: UPT_RDI(regs) = __upt_val; break; \ case RBP: UPT_RBP(regs) = __upt_val; break; \ case ORIG_RAX: UPT_ORIG_RAX(regs) = __upt_val; break; \ case CS: UPT_CS(regs) = __upt_val; break; \ case SS: UPT_SS(regs) = __upt_val; break; \ case FS_BASE: UPT_FS_BASE(regs) = __upt_val; break; \ case GS_BASE: UPT_GS_BASE(regs) = __upt_val; break; \ case DS: UPT_DS(regs) = __upt_val; break; \ case ES: UPT_ES(regs) = __upt_val; break; \ case FS: UPT_FS(regs) = __upt_val; break; \ case GS: UPT_GS(regs) = __upt_val; break; \ case EFLAGS: UPT_EFLAGS(regs) = __upt_val; break; \ default : \ panic("Bad register in UPT_SET : %d\n", reg); \ break; \ } \ __upt_val; \ }) #define UPT_SET_SYSCALL_RETURN(r, res) \ REGS_SET_SYSCALL_RETURN((r)->regs, (res)) #define UPT_RESTART_SYSCALL(r) REGS_RESTART_SYSCALL((r)->gp) #define UPT_SEGV_IS_FIXABLE(r) REGS_SEGV_IS_FIXABLE(&r->skas) #define UPT_FAULTINFO(r) (&(r)->faultinfo) static inline void arch_init_registers(int pid) { } #endif