arch/um/include/sysdep-x86_64/ptrace_user.h

   1 /*
   2  * Copyright 2003 PathScale, Inc.
   3  *
   4  * Licensed under the GPL
   5  */
   6
   7 #ifndef __SYSDEP_X86_64_PTRACE_USER_H__
   8 #define __SYSDEP_X86_64_PTRACE_USER_H__
   9
  10 #define __FRAME_OFFSETS
  11 #include <sys/ptrace.h>
  12 #include <linux/ptrace.h>
  13 #include <asm/ptrace.h>
  14 #undef __FRAME_OFFSETS
  15 #include "user_constants.h"
  16
  17 #define PT_INDEX(off) ((off) / sizeof(unsigned long))
  18
  19 #define PT_SYSCALL_NR(regs) ((regs)[PT_INDEX(ORIG_RAX)])
  20 #define PT_SYSCALL_NR_OFFSET (ORIG_RAX)
  21
  22 #define PT_SYSCALL_ARG1(regs) (((unsigned long *) (regs))[PT_INDEX(RDI)])
  23 #define PT_SYSCALL_ARG1_OFFSET (RDI)
  24
  25 #define PT_SYSCALL_ARG2(regs) (((unsigned long *) (regs))[PT_INDEX(RSI)])
  26 #define PT_SYSCALL_ARG2_OFFSET (RSI)
  27
  28 #define PT_SYSCALL_ARG3(regs) (((unsigned long *) (regs))[PT_INDEX(RDX)])
  29 #define PT_SYSCALL_ARG3_OFFSET (RDX)
  30
  31 #define PT_SYSCALL_ARG4(regs) (((unsigned long *) (regs))[PT_INDEX(RCX)])
  32 #define PT_SYSCALL_ARG4_OFFSET (RCX)
  33
  34 #define PT_SYSCALL_ARG5(regs) (((unsigned long *) (regs))[PT_INDEX(R8)])
  35 #define PT_SYSCALL_ARG5_OFFSET (R8)
  36
  37 #define PT_SYSCALL_ARG6(regs) (((unsigned long *) (regs))[PT_INDEX(R9)])
  38 #define PT_SYSCALL_ARG6_OFFSET (R9)
  39
  40 #define PT_SYSCALL_RET_OFFSET (RAX)
  41
  42 #define PT_IP_OFFSET (RIP)
  43 #define PT_IP(regs) ((regs)[PT_INDEX(RIP)])
  44
  45 #define PT_SP_OFFSET (RSP)
  46 #define PT_SP(regs) ((regs)[PT_INDEX(RSP)])
  47
  48 #define PT_ORIG_RAX_OFFSET (ORIG_RAX)
  49 #define PT_ORIG_RAX(regs) ((regs)[PT_INDEX(ORIG_RAX)])
  50
  51 /*
  52  * x86_64 FC3 doesn't define this in /usr/include/linux/ptrace.h even though
  53  * it's defined in the kernel's include/linux/ptrace.h. Additionally, use the
  54  * 2.4 name and value for 2.4 host compatibility.
  55  */
  56 #ifndef PTRACE_OLDSETOPTIONS
  57 #define PTRACE_OLDSETOPTIONS 21
  58 #endif
  59
  60 /*
  61  * These are before the system call, so the system call number is RAX
  62  * rather than ORIG_RAX, and arg4 is R10 rather than RCX
  63  */
  64 #define REGS_SYSCALL_NR PT_INDEX(RAX)
  65 #define REGS_SYSCALL_ARG1 PT_INDEX(RDI)
  66 #define REGS_SYSCALL_ARG2 PT_INDEX(RSI)
  67 #define REGS_SYSCALL_ARG3 PT_INDEX(RDX)
  68 #define REGS_SYSCALL_ARG4 PT_INDEX(R10)
  69 #define REGS_SYSCALL_ARG5 PT_INDEX(R8)
  70 #define REGS_SYSCALL_ARG6 PT_INDEX(R9)
  71
  72 #define REGS_IP_INDEX PT_INDEX(RIP)
  73 #define REGS_SP_INDEX PT_INDEX(RSP)
  74
  75 #define FP_SIZE (HOST_FP_SIZE)
  76
  77 #endif