| #include <asm/ptrace-abi.h> |
| /* this struct defines the way the registers are stored on the |
| stack during a system call. */ |
| extern void send_sigtrap(struct task_struct *tsk, struct pt_regs *regs, int error_code); |
| * user_mode_vm(regs) determines whether a register set came from user mode. |
| * This is true if V8086 mode was enabled OR if the register set was from |
| * protected mode with RPL-3 CS value. This tricky test checks that with |
| * one comparison. Many places in the kernel can bypass this full check |
| * if they have already ruled out V8086 mode, so user_mode(regs) can be used. |
| static inline int user_mode(struct pt_regs *regs) |
| return (regs->xcs & SEGMENT_RPL_MASK) == USER_RPL; |
| static inline int user_mode_vm(struct pt_regs *regs) |
| return ((regs->xcs & SEGMENT_RPL_MASK) | (regs->eflags & VM_MASK)) >= USER_RPL; |
| static inline int v8086_mode(struct pt_regs *regs) |
| return (regs->eflags & VM_MASK); |
| #define instruction_pointer(regs) ((regs)->eip) |
| #define regs_return_value(regs) ((regs)->eax) |
| extern unsigned long profile_pc(struct pt_regs *regs); |