013cf483c9
Some exceptions cause an error code to be saved on the current stack after the EIP value. We should extract CS/EIP/EFLAGS from different position on the stack based on the exception number. Signed-off-by: Bin Meng <bmeng.cn@gmail.com> Acked-by: Simon Glass <sjg@chromium.org>
101 lines
1.8 KiB
C
101 lines
1.8 KiB
C
#ifndef _I386_PTRACE_H
|
|
#define _I386_PTRACE_H
|
|
|
|
#include <asm/types.h>
|
|
|
|
#define EBX 0
|
|
#define ECX 1
|
|
#define EDX 2
|
|
#define ESI 3
|
|
#define EDI 4
|
|
#define EBP 5
|
|
#define EAX 6
|
|
#define DS 7
|
|
#define ES 8
|
|
#define FS 9
|
|
#define GS 10
|
|
#define ORIG_EAX 11
|
|
#define EIP 12
|
|
#define CS 13
|
|
#define EFL 14
|
|
#define UESP 15
|
|
#define SS 16
|
|
#define FRAME_SIZE 17
|
|
|
|
/* 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;
|
|
} __attribute__ ((packed));
|
|
|
|
struct irq_regs {
|
|
/* Pushed by irq_common_entry */
|
|
long ebx;
|
|
long ecx;
|
|
long edx;
|
|
long esi;
|
|
long edi;
|
|
long ebp;
|
|
long esp;
|
|
long eax;
|
|
long xds;
|
|
long xes;
|
|
long xfs;
|
|
long xgs;
|
|
long xss;
|
|
/* Pushed by vector handler (irq_<num>) */
|
|
long irq_id;
|
|
/* Pushed by cpu in response to interrupt */
|
|
union {
|
|
struct {
|
|
long eip;
|
|
long xcs;
|
|
long eflags;
|
|
} ctx1;
|
|
struct {
|
|
long err;
|
|
long eip;
|
|
long xcs;
|
|
long eflags;
|
|
} ctx2;
|
|
} context;
|
|
} __attribute__ ((packed));
|
|
|
|
/* Arbitrarily choose the same ptrace numbers as used by the Sparc code. */
|
|
#define PTRACE_GETREGS 12
|
|
#define PTRACE_SETREGS 13
|
|
#define PTRACE_GETFPREGS 14
|
|
#define PTRACE_SETFPREGS 15
|
|
#define PTRACE_GETFPXREGS 18
|
|
#define PTRACE_SETFPXREGS 19
|
|
|
|
#define PTRACE_SETOPTIONS 21
|
|
|
|
/* options set using PTRACE_SETOPTIONS */
|
|
#define PTRACE_O_TRACESYSGOOD 0x00000001
|
|
|
|
#ifdef __KERNEL__
|
|
#define user_mode(regs) ((VM_MASK & (regs)->eflags) || (3 & (regs)->xcs))
|
|
#define instruction_pointer(regs) ((regs)->eip)
|
|
extern void show_regs(struct pt_regs *);
|
|
#endif
|
|
|
|
#endif
|