aboutsummaryrefslogtreecommitdiffstats
path: root/arch/sh/include/asm/ptrace_32.h
blob: 2d3e906aa72252d3b827a12405546465127d5f78 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
#ifndef __ASM_SH_PTRACE_32_H
#define __ASM_SH_PTRACE_32_H

/*
 * GCC defines register number like this:
 * -----------------------------
 *	 0 - 15 are integer registers
 *	17 - 22 are control/special registers
 *	24 - 39 fp registers
 *	40 - 47 xd registers
 *	48 -    fpscr register
 * -----------------------------
 *
 * We follows above, except:
 *	16 --- program counter (PC)
 *	22 --- syscall #
 *	23 --- floating point communication register
 */
#define REG_REG0	 0
#define REG_REG15	15

#define REG_PC		16

#define REG_PR		17
#define REG_SR		18
#define REG_GBR		19
#define REG_MACH	20
#define REG_MACL	21

#define REG_SYSCALL	22

#define REG_FPREG0	23
#define REG_FPREG15	38
#define REG_XFREG0	39
#define REG_XFREG15	54

#define REG_FPSCR	55
#define REG_FPUL	56

/*
 * This struct defines the way the registers are stored on the
 * kernel stack during a system call or other kernel entry.
 */
struct pt_regs {
	unsigned long regs[16];
	unsigned long pc;
	unsigned long pr;
	unsigned long sr;
	unsigned long gbr;
	unsigned long mach;
	unsigned long macl;
	long tra;
};

/*
 * This struct defines the way the DSP registers are stored on the
 * kernel stack during a system call or other kernel entry.
 */
struct pt_dspregs {
	unsigned long	a1;
	unsigned long	a0g;
	unsigned long	a1g;
	unsigned long	m0;
	unsigned long	m1;
	unsigned long	a0;
	unsigned long	x0;
	unsigned long	x1;
	unsigned long	y0;
	unsigned long	y1;
	unsigned long	dsr;
	unsigned long	rs;
	unsigned long	re;
	unsigned long	mod;
};

#ifdef __KERNEL__

#define MAX_REG_OFFSET		offsetof(struct pt_regs, tra)
static inline long regs_return_value(struct pt_regs *regs)
{
	return regs->regs[0];
}

#endif /* __KERNEL__ */

#endif /* __ASM_SH_PTRACE_32_H */