aboutsummaryrefslogtreecommitdiffstats
path: root/include/asm-x86/ia32.h
blob: 0190b7c4e319cc1a153a23ba2030267ba8694b4e (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
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
#ifndef _ASM_X86_64_IA32_H
#define _ASM_X86_64_IA32_H


#ifdef CONFIG_IA32_EMULATION

#include <linux/compat.h>

/*
 * 32 bit structures for IA32 support.
 */

#include <asm/sigcontext32.h>

/* signal.h */
struct sigaction32 {
       unsigned int  sa_handler;	/* Really a pointer, but need to deal 
					     with 32 bits */
       unsigned int sa_flags;
       unsigned int sa_restorer;	/* Another 32 bit pointer */
       compat_sigset_t sa_mask;		/* A 32 bit mask */
};

struct old_sigaction32 {
       unsigned int  sa_handler;	/* Really a pointer, but need to deal 
					     with 32 bits */
       compat_old_sigset_t sa_mask;		/* A 32 bit mask */
       unsigned int sa_flags;
       unsigned int sa_restorer;	/* Another 32 bit pointer */
};

typedef struct sigaltstack_ia32 {
	unsigned int	ss_sp;
	int		ss_flags;
	unsigned int	ss_size;
} stack_ia32_t;

struct ucontext_ia32 {
	unsigned int	  uc_flags;
	unsigned int 	  uc_link;
	stack_ia32_t	  uc_stack;
	struct sigcontext_ia32 uc_mcontext;
	compat_sigset_t	  uc_sigmask;	/* mask last for extensibility */
};

/* This matches struct stat64 in glibc2.2, hence the absolutely
 * insane amounts of padding around dev_t's.
 */
struct stat64 {
	unsigned long long	st_dev;
	unsigned char		__pad0[4];

#define STAT64_HAS_BROKEN_ST_INO	1
	unsigned int		__st_ino;

	unsigned int		st_mode;
	unsigned int		st_nlink;

	unsigned int		st_uid;
	unsigned int		st_gid;

	unsigned long long	st_rdev;
	unsigned char		__pad3[4];

	long long		st_size;
	unsigned int		st_blksize;

	long long		st_blocks;/* Number 512-byte blocks allocated. */

	unsigned 		st_atime;
	unsigned 		st_atime_nsec;
	unsigned 		st_mtime;
	unsigned 		st_mtime_nsec;
	unsigned 		st_ctime;
	unsigned 		st_ctime_nsec;

	unsigned long long	st_ino;
} __attribute__((packed));

typedef struct compat_siginfo{
	int si_signo;
	int si_errno;
	int si_code;

	union {
		int _pad[((128/sizeof(int)) - 3)];

		/* kill() */
		struct {
			unsigned int _pid;	/* sender's pid */
			unsigned int _uid;	/* sender's uid */
		} _kill;

		/* POSIX.1b timers */
		struct {
			compat_timer_t _tid;	/* timer id */
			int _overrun;		/* overrun count */
			compat_sigval_t _sigval;	/* same as below */
			int _sys_private;	/* not to be passed to user */
			int _overrun_incr;	/* amount to add to overrun */
		} _timer;

		/* POSIX.1b signals */
		struct {
			unsigned int _pid;	/* sender's pid */
			unsigned int _uid;	/* sender's uid */
			compat_sigval_t _sigval;
		} _rt;

		/* SIGCHLD */
		struct {
			unsigned int _pid;	/* which child */
			unsigned int _uid;	/* sender's uid */
			int _status;		/* exit code */
			compat_clock_t _utime;
			compat_clock_t _stime;
		} _sigchld;

		/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
		struct {
			unsigned int _addr;	/* faulting insn/memory ref. */
		} _sigfault;

		/* SIGPOLL */
		struct {
			int _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
			int _fd;
		} _sigpoll;
	} _sifields;
} compat_siginfo_t;

struct sigframe32
{
        u32 pretcode;
        int sig;
        struct sigcontext_ia32 sc;
        struct _fpstate_ia32 fpstate;
        unsigned int extramask[_COMPAT_NSIG_WORDS-1];
};

struct rt_sigframe32
{
        u32 pretcode;
        int sig;
        u32 pinfo;
        u32 puc;
        compat_siginfo_t info;
        struct ucontext_ia32 uc;
        struct _fpstate_ia32 fpstate;
};

struct ustat32 {
	__u32	f_tfree;
	compat_ino_t		f_tinode;
	char			f_fname[6];
	char			f_fpack[6];
};

#define IA32_STACK_TOP IA32_PAGE_OFFSET

#ifdef __KERNEL__
struct user_desc;
struct siginfo_t;
int do_get_thread_area(struct thread_struct *t, struct user_desc __user *info);
int do_set_thread_area(struct thread_struct *t, struct user_desc __user *info);
int ia32_child_tls(struct task_struct *p, struct pt_regs *childregs);

struct linux_binprm;
extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
				unsigned long stack_top, int exec_stack);
struct mm_struct;
extern void ia32_pick_mmap_layout(struct mm_struct *mm);

#endif

#endif /* !CONFIG_IA32_SUPPORT */
 
#endif