shared/sysdep/ptrace_64.h

0001 /*
0002  * Copyright 2003 PathScale, Inc.
0003  * Copyright (C) 2003 - 2007 Jeff Dike (jdike@{addtoit,linux.intel}.com)
0004  *
0005  * Licensed under the GPL
0006  */
0007
0008 #ifndef __SYSDEP_X86_64_PTRACE_H
0009 #define __SYSDEP_X86_64_PTRACE_H
0010
0011 #define MAX_FP_NR HOST_FP_SIZE
0012
0013 #define REGS_R8(r) ((r)[HOST_R8])
0014 #define REGS_R9(r) ((r)[HOST_R9])
0015 #define REGS_R10(r) ((r)[HOST_R10])
0016 #define REGS_R11(r) ((r)[HOST_R11])
0017 #define REGS_R12(r) ((r)[HOST_R12])
0018 #define REGS_R13(r) ((r)[HOST_R13])
0019 #define REGS_R14(r) ((r)[HOST_R14])
0020 #define REGS_R15(r) ((r)[HOST_R15])
0021
0022 #define HOST_FS_BASE 21
0023 #define HOST_GS_BASE 22
0024 #define HOST_DS 23
0025 #define HOST_ES 24
0026 #define HOST_FS 25
0027 #define HOST_GS 26
0028
0029 /* Also defined in asm/ptrace-x86_64.h, but not in libc headers.  So, these
0030  * are already defined for kernel code, but not for userspace code.
0031  */
0032 #ifndef FS_BASE
0033 /* These aren't defined in ptrace.h, but exist in struct user_regs_struct,
0034  * which is what x86_64 ptrace actually uses.
0035  */
0036 #define FS_BASE (HOST_FS_BASE * sizeof(long))
0037 #define GS_BASE (HOST_GS_BASE * sizeof(long))
0038 #define DS (HOST_DS * sizeof(long))
0039 #define ES (HOST_ES * sizeof(long))
0040 #define FS (HOST_FS * sizeof(long))
0041 #define GS (HOST_GS * sizeof(long))
0042 #endif
0043
0044 #define UPT_R8(r) REGS_R8((r)->gp)
0045 #define UPT_R9(r) REGS_R9((r)->gp)
0046 #define UPT_R10(r) REGS_R10((r)->gp)
0047 #define UPT_R11(r) REGS_R11((r)->gp)
0048 #define UPT_R12(r) REGS_R12((r)->gp)
0049 #define UPT_R13(r) REGS_R13((r)->gp)
0050 #define UPT_R14(r) REGS_R14((r)->gp)
0051 #define UPT_R15(r) REGS_R15((r)->gp)
0052
0053 #define UPT_SYSCALL_ARG1(r) UPT_DI(r)
0054 #define UPT_SYSCALL_ARG2(r) UPT_SI(r)
0055 #define UPT_SYSCALL_ARG3(r) UPT_DX(r)
0056 #define UPT_SYSCALL_ARG4(r) UPT_R10(r)
0057 #define UPT_SYSCALL_ARG5(r) UPT_R8(r)
0058 #define UPT_SYSCALL_ARG6(r) UPT_R9(r)
0059
0060 extern void arch_init_registers(int pid);
0061
0062 #endif