LXR linux/arch/x86/um/asm/ptrace.h

   1#ifndef __UM_X86_PTRACE_H
   2#define __UM_X86_PTRACE_H
   3
   4#include <linux/compiler.h>
   5#ifndef CONFIG_X86_32
   6#define __FRAME_OFFSETS /* Needed to get the R* macros */
   7#endif
   8#include <asm/ptrace-generic.h>
   9
  10#define user_mode(r) UPT_IS_USER(&(r)->regs)
  11
  12#define PT_REGS_AX(r) UPT_AX(&(r)->regs)
  13#define PT_REGS_BX(r) UPT_BX(&(r)->regs)
  14#define PT_REGS_CX(r) UPT_CX(&(r)->regs)
  15#define PT_REGS_DX(r) UPT_DX(&(r)->regs)
  16
  17#define PT_REGS_SI(r) UPT_SI(&(r)->regs)
  18#define PT_REGS_DI(r) UPT_DI(&(r)->regs)
  19#define PT_REGS_BP(r) UPT_BP(&(r)->regs)
  20#define PT_REGS_EFLAGS(r) UPT_EFLAGS(&(r)->regs)
  21
  22#define PT_REGS_CS(r) UPT_CS(&(r)->regs)
  23#define PT_REGS_SS(r) UPT_SS(&(r)->regs)
  24#define PT_REGS_DS(r) UPT_DS(&(r)->regs)
  25#define PT_REGS_ES(r) UPT_ES(&(r)->regs)
  26
  27#define PT_REGS_ORIG_SYSCALL(r) PT_REGS_AX(r)
  28#define PT_REGS_SYSCALL_RET(r) PT_REGS_AX(r)
  29
  30#define PT_FIX_EXEC_STACK(sp) do ; while(0)
  31
  32#define profile_pc(regs) PT_REGS_IP(regs)
  33
  34#define UPT_RESTART_SYSCALL(r) (UPT_IP(r) -= 2)
  35#define PT_REGS_SET_SYSCALL_RETURN(r, res) (PT_REGS_AX(r) = (res))
  36
  37static inline long regs_return_value(struct pt_regs *regs)
  38{
  39        return PT_REGS_AX(regs);
  40}
  41
  42/*
  43 * Forward declaration to avoid including sysdep/tls.h, which causes a
  44 * circular include, and compilation failures.
  45 */
  46struct user_desc;
  47
  48#ifdef CONFIG_X86_32
  49
  50#define HOST_AUDIT_ARCH AUDIT_ARCH_I386
  51
  52extern int ptrace_get_thread_area(struct task_struct *child, int idx,
  53                                  struct user_desc __user *user_desc);
  54
  55extern int ptrace_set_thread_area(struct task_struct *child, int idx,
  56                                  struct user_desc __user *user_desc);
  57
  58#else
  59
  60#define HOST_AUDIT_ARCH AUDIT_ARCH_X86_64
  61
  62#define PT_REGS_R8(r) UPT_R8(&(r)->regs)
  63#define PT_REGS_R9(r) UPT_R9(&(r)->regs)
  64#define PT_REGS_R10(r) UPT_R10(&(r)->regs)
  65#define PT_REGS_R11(r) UPT_R11(&(r)->regs)
  66#define PT_REGS_R12(r) UPT_R12(&(r)->regs)
  67#define PT_REGS_R13(r) UPT_R13(&(r)->regs)
  68#define PT_REGS_R14(r) UPT_R14(&(r)->regs)
  69#define PT_REGS_R15(r) UPT_R15(&(r)->regs)
  70
  71#include <asm/errno.h>
  72
  73static inline int ptrace_get_thread_area(struct task_struct *child, int idx,
  74                                         struct user_desc __user *user_desc)
  75{
  76        return -ENOSYS;
  77}
  78
  79static inline int ptrace_set_thread_area(struct task_struct *child, int idx,
  80                                         struct user_desc __user *user_desc)
  81{
  82        return -ENOSYS;
  83}
  84
  85extern long arch_prctl(struct task_struct *task, int code,
  86                       unsigned long __user *addr);
  87
  88#endif
  89#define user_stack_pointer(regs) PT_REGS_SP(regs)
  90#endif /* __UM_X86_PTRACE_H */
  91