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 37 static 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 */ 46 struct user_desc; 47 48 #ifdef CONFIG_X86_32 49 50 extern int ptrace_get_thread_area(struct task_struct *child, int idx, 51 struct user_desc __user *user_desc); 52 53 extern int ptrace_set_thread_area(struct task_struct *child, int idx, 54 struct user_desc __user *user_desc); 55 56 #else 57 58 #define PT_REGS_R8(r) UPT_R8(&(r)->regs) 59 #define PT_REGS_R9(r) UPT_R9(&(r)->regs) 60 #define PT_REGS_R10(r) UPT_R10(&(r)->regs) 61 #define PT_REGS_R11(r) UPT_R11(&(r)->regs) 62 #define PT_REGS_R12(r) UPT_R12(&(r)->regs) 63 #define PT_REGS_R13(r) UPT_R13(&(r)->regs) 64 #define PT_REGS_R14(r) UPT_R14(&(r)->regs) 65 #define PT_REGS_R15(r) UPT_R15(&(r)->regs) 66 67 #include <asm/errno.h> 68 69 static inline int ptrace_get_thread_area(struct task_struct *child, int idx, 70 struct user_desc __user *user_desc) 71 { 72 return -ENOSYS; 73 } 74 75 static inline int ptrace_set_thread_area(struct task_struct *child, int idx, 76 struct user_desc __user *user_desc) 77 { 78 return -ENOSYS; 79 } 80 81 extern long arch_prctl(struct task_struct *task, int code, 82 unsigned long __user *addr); 83 84 #endif 85 #define user_stack_pointer(regs) PT_REGS_SP(regs) 86 #endif /* __UM_X86_PTRACE_H */ 87