summaryrefslogtreecommitdiffstats
path: root/arch/ia64/ia32/elfcore32.h
blob: 446c9aac924dce0271f14068dcd99ee4e84907aa (plain)
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
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
/*
 * IA-32 ELF core dump support.
 *
 * Copyright (C) 2003 Arun Sharma <arun.sharma@intel.com>
 *
 * Derived from the x86_64 version
 */
#ifndef _ELFCORE32_H_
#define _ELFCORE32_H_

#include <asm/intrinsics.h>
#include <asm/uaccess.h>

#define USE_ELF_CORE_DUMP 1

/* Override elfcore.h */
#define _LINUX_ELFCORE_H 1
typedef unsigned int elf_greg_t;

#define ELF_NGREG (sizeof (struct user_regs_struct32) / sizeof(elf_greg_t))
typedef elf_greg_t elf_gregset_t[ELF_NGREG];

typedef struct ia32_user_i387_struct elf_fpregset_t;
typedef struct ia32_user_fxsr_struct elf_fpxregset_t;

struct elf_siginfo
{
	int	si_signo;			/* signal number */
	int	si_code;			/* extra code */
	int	si_errno;			/* errno */
};

#define jiffies_to_timeval(a,b) do { (b)->tv_usec = 0; (b)->tv_sec = (a)/HZ; }while(0)

struct elf_prstatus
{
	struct elf_siginfo pr_info;	/* Info associated with signal */
	short	pr_cursig;		/* Current signal */
	unsigned int pr_sigpend;	/* Set of pending signals */
	unsigned int pr_sighold;	/* Set of held signals */
	pid_t	pr_pid;
	pid_t	pr_ppid;
	pid_t	pr_pgrp;
	pid_t	pr_sid;
	struct compat_timeval pr_utime;	/* User time */
	struct compat_timeval pr_stime;	/* System time */
	struct compat_timeval pr_cutime;	/* Cumulative user time */
	struct compat_timeval pr_cstime;	/* Cumulative system time */
	elf_gregset_t pr_reg;	/* GP registers */
	int pr_fpvalid;		/* True if math co-processor being used.  */
};

#define ELF_PRARGSZ	(80)	/* Number of chars for args */

struct elf_prpsinfo
{
	char	pr_state;	/* numeric process state */
	char	pr_sname;	/* char for pr_state */
	char	pr_zomb;	/* zombie */
	char	pr_nice;	/* nice val */
	unsigned int pr_flag;	/* flags */
	__u16	pr_uid;
	__u16	pr_gid;
	pid_t	pr_pid, pr_ppid, pr_pgrp, pr_sid;
	/* Lots missing */
	char	pr_fname[16];	/* filename of executable */
	char	pr_psargs[ELF_PRARGSZ];	/* initial part of arg list */
};

#define ELF_CORE_COPY_REGS(pr_reg, regs)       		\
	pr_reg[0] = regs->r11;				\
	pr_reg[1] = regs->r9;				\
	pr_reg[2] = regs->r10;				\
	pr_reg[3] = regs->r14;				\
	pr_reg[4] = regs->r15;				\
	pr_reg[5] = regs->r13;				\
	pr_reg[6] = regs->r8;				\
	pr_reg[7] = regs->r16 & 0xffff;			\
	pr_reg[8] = (regs->r16 >> 16) & 0xffff;		\
	pr_reg[9] = (regs->r16 >> 32) & 0xffff;		\
	pr_reg[10] = (regs->r16 >> 48) & 0xffff;	\
	pr_reg[11] = regs->r1; 				\
	pr_reg[12] = regs->cr_iip;			\
	pr_reg[13] = regs->r17 & 0xffff;		\
	pr_reg[14] = ia64_getreg(_IA64_REG_AR_EFLAG);	\
	pr_reg[15] = regs->r12;				\
	pr_reg[16] = (regs->r17 >> 16) & 0xffff;

static inline void elf_core_copy_regs(elf_gregset_t *elfregs,
				      struct pt_regs *regs)
{
	ELF_CORE_COPY_REGS((*elfregs), regs)
}

static inline int elf_core_copy_task_regs(struct task_struct *t,
					  elf_gregset_t* elfregs)
{
	ELF_CORE_COPY_REGS((*elfregs), task_pt_regs(t));
	return 1;
}

static inline int
elf_core_copy_task_fpregs(struct task_struct *tsk, struct pt_regs *regs, elf_fpregset_t *fpu)
{
	struct ia32_user_i387_struct *fpstate = (void*)fpu;
	mm_segment_t old_fs;

	if (!tsk_used_math(tsk))
		return 0;
	
	old_fs = get_fs();
	set_fs(KERNEL_DS);
	save_ia32_fpstate(tsk, (struct ia32_user_i387_struct __user *) fpstate);
	set_fs(old_fs);

	return 1;
}

#define ELF_CORE_COPY_XFPREGS 1
#define ELF_CORE_XFPREG_TYPE NT_PRXFPREG
static inline int
elf_core_copy_task_xfpregs(struct task_struct *tsk, elf_fpxregset_t *xfpu)
{
	struct ia32_user_fxsr_struct *fpxstate = (void*) xfpu;
	mm_segment_t old_fs;

	if (!tsk_used_math(tsk))
		return 0;

	old_fs = get_fs();
	set_fs(KERNEL_DS);
	save_ia32_fpxstate(tsk, (struct ia32_user_fxsr_struct __user *) fpxstate);
	set_fs(old_fs);

	return 1;
}

#endif /* _ELFCORE32_H_ */