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
  16 #define PT_INDEX(off) ((off) / sizeof(unsigned long))
  17
  18 #define PT_SYSCALL_NR(regs) ((regs)[PT_INDEX(ORIG_RAX)])
  19 #define PT_SYSCALL_NR_OFFSET (ORIG_RAX)
  20
  21 #define PT_SYSCALL_ARG1(regs) (((unsigned long *) (regs))[PT_INDEX(RDI)])
  22 #define PT_SYSCALL_ARG1_OFFSET (RDI)
  23
  24 #define PT_SYSCALL_ARG2(regs) (((unsigned long *) (regs))[PT_INDEX(RSI)])
  25 #define PT_SYSCALL_ARG2_OFFSET (RSI)
  26
  27 #define PT_SYSCALL_ARG3(regs) (((unsigned long *) (regs))[PT_INDEX(RDX)])
  28 #define PT_SYSCALL_ARG3_OFFSET (RDX)
  29
  30 #define PT_SYSCALL_ARG4(regs) (((unsigned long *) (regs))[PT_INDEX(RCX)])
  31 #define PT_SYSCALL_ARG4_OFFSET (RCX)
  32
  33 #define PT_SYSCALL_ARG5(regs) (((unsigned long *) (regs))[PT_INDEX(R8)])
  34 #define PT_SYSCALL_ARG5_OFFSET (R8)
  35
  36 #define PT_SYSCALL_ARG6(regs) (((unsigned long *) (regs))[PT_INDEX(R9)])
  37 #define PT_SYSCALL_ARG6_OFFSET (R9)
  38
  39 #define PT_SYSCALL_RET_OFFSET (RAX)
  40
  41 #define PT_IP_OFFSET (RIP)
  42 #define PT_IP(regs) ((regs)[PT_INDEX(RIP)])
  43
  44 #define PT_SP_OFFSET (RSP)
  45 #define PT_SP(regs) ((regs)[PT_INDEX(RSP)])
  46
  47 #define PT_ORIG_RAX_OFFSET (ORIG_RAX)
  48 #define PT_ORIG_RAX(regs) ((regs)[PT_INDEX(ORIG_RAX)])
  49
  50 /* x86_64 FC3 doesn't define this in /usr/include/linux/ptrace.h even though
  51  * it's defined in the kernel's include/linux/ptrace.h. Additionally, use the
  52  * 2.4 name and value for 2.4 host compatibility.
  53  */
  54 #ifndef PTRACE_OLDSETOPTIONS
  55 #define PTRACE_OLDSETOPTIONS 21
  56 #endif
  57
  58 /* These are before the system call, so the system call number is RAX
  59  * rather than ORIG_RAX, and arg4 is R10 rather than RCX
  60  */
  61 #define REGS_SYSCALL_NR PT_INDEX(RAX)
  62 #define REGS_SYSCALL_ARG1 PT_INDEX(RDI)
  63 #define REGS_SYSCALL_ARG2 PT_INDEX(RSI)
  64 #define REGS_SYSCALL_ARG3 PT_INDEX(RDX)
  65 #define REGS_SYSCALL_ARG4 PT_INDEX(R10)
  66 #define REGS_SYSCALL_ARG5 PT_INDEX(R8)
  67 #define REGS_SYSCALL_ARG6 PT_INDEX(R9)
  68
  69 #define REGS_IP_INDEX PT_INDEX(RIP)
  70 #define REGS_SP_INDEX PT_INDEX(RSP)
  71
  72 #endif
  73
  74 /*
  75  * Overrides for Emacs so that we follow Linus's tabbing style.
  76  * Emacs will notice this stuff at the end of the file and automatically
  77  * adjust the settings for this buffer only.  This must remain at the end
  78  * of the file.
  79  * ---------------------------------------------------------------------------
  80  * Local variables:
  81  * c-file-style: "linux"
  82  * End:
  83  */