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47906dd9e6
Tidy the ptrace interface code. Removed a bunch of unused macros. Started converting register sets from arrays of longs to structures. Signed-off-by: Jeff Dike <jdike@linux.intel.com> Cc: WANG Cong <xiyou.wangcong@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
78 lines
2.2 KiB
C
78 lines
2.2 KiB
C
/*
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* Copyright 2003 PathScale, Inc.
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*
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* Licensed under the GPL
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*/
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#ifndef __SYSDEP_X86_64_PTRACE_USER_H__
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#define __SYSDEP_X86_64_PTRACE_USER_H__
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#define __FRAME_OFFSETS
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#include <sys/ptrace.h>
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#include <linux/ptrace.h>
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#include <asm/ptrace.h>
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#undef __FRAME_OFFSETS
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#include "user_constants.h"
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#define PT_INDEX(off) ((off) / sizeof(unsigned long))
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#define PT_SYSCALL_NR(regs) ((regs)[PT_INDEX(ORIG_RAX)])
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#define PT_SYSCALL_NR_OFFSET (ORIG_RAX)
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#define PT_SYSCALL_ARG1(regs) (((unsigned long *) (regs))[PT_INDEX(RDI)])
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#define PT_SYSCALL_ARG1_OFFSET (RDI)
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#define PT_SYSCALL_ARG2(regs) (((unsigned long *) (regs))[PT_INDEX(RSI)])
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#define PT_SYSCALL_ARG2_OFFSET (RSI)
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#define PT_SYSCALL_ARG3(regs) (((unsigned long *) (regs))[PT_INDEX(RDX)])
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#define PT_SYSCALL_ARG3_OFFSET (RDX)
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#define PT_SYSCALL_ARG4(regs) (((unsigned long *) (regs))[PT_INDEX(RCX)])
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#define PT_SYSCALL_ARG4_OFFSET (RCX)
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#define PT_SYSCALL_ARG5(regs) (((unsigned long *) (regs))[PT_INDEX(R8)])
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#define PT_SYSCALL_ARG5_OFFSET (R8)
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#define PT_SYSCALL_ARG6(regs) (((unsigned long *) (regs))[PT_INDEX(R9)])
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#define PT_SYSCALL_ARG6_OFFSET (R9)
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#define PT_SYSCALL_RET_OFFSET (RAX)
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#define PT_IP_OFFSET (RIP)
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#define PT_IP(regs) ((regs)[PT_INDEX(RIP)])
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#define PT_SP_OFFSET (RSP)
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#define PT_SP(regs) ((regs)[PT_INDEX(RSP)])
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#define PT_ORIG_RAX_OFFSET (ORIG_RAX)
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#define PT_ORIG_RAX(regs) ((regs)[PT_INDEX(ORIG_RAX)])
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/*
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* x86_64 FC3 doesn't define this in /usr/include/linux/ptrace.h even though
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* it's defined in the kernel's include/linux/ptrace.h. Additionally, use the
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* 2.4 name and value for 2.4 host compatibility.
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*/
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#ifndef PTRACE_OLDSETOPTIONS
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#define PTRACE_OLDSETOPTIONS 21
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#endif
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/*
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* These are before the system call, so the system call number is RAX
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* rather than ORIG_RAX, and arg4 is R10 rather than RCX
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*/
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#define REGS_SYSCALL_NR PT_INDEX(RAX)
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#define REGS_SYSCALL_ARG1 PT_INDEX(RDI)
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#define REGS_SYSCALL_ARG2 PT_INDEX(RSI)
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#define REGS_SYSCALL_ARG3 PT_INDEX(RDX)
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#define REGS_SYSCALL_ARG4 PT_INDEX(R10)
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#define REGS_SYSCALL_ARG5 PT_INDEX(R8)
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#define REGS_SYSCALL_ARG6 PT_INDEX(R9)
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#define REGS_IP_INDEX PT_INDEX(RIP)
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#define REGS_SP_INDEX PT_INDEX(RSP)
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#define FP_SIZE (HOST_FP_SIZE)
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#endif
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