mirror of
https://github.com/torvalds/linux.git
synced 2024-11-08 05:01:48 +00:00
96a388de5d
Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
64 lines
1.4 KiB
C
64 lines
1.4 KiB
C
#ifndef _I386_PTRACE_H
|
|
#define _I386_PTRACE_H
|
|
|
|
#include <asm/ptrace-abi.h>
|
|
|
|
/* this struct defines the way the registers are stored on the
|
|
stack during a system call. */
|
|
|
|
struct pt_regs {
|
|
long ebx;
|
|
long ecx;
|
|
long edx;
|
|
long esi;
|
|
long edi;
|
|
long ebp;
|
|
long eax;
|
|
int xds;
|
|
int xes;
|
|
int xfs;
|
|
/* int xgs; */
|
|
long orig_eax;
|
|
long eip;
|
|
int xcs;
|
|
long eflags;
|
|
long esp;
|
|
int xss;
|
|
};
|
|
|
|
#ifdef __KERNEL__
|
|
|
|
#include <asm/vm86.h>
|
|
#include <asm/segment.h>
|
|
|
|
struct task_struct;
|
|
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);
|
|
#endif /* __KERNEL__ */
|
|
|
|
#endif
|