[mirror_ubuntu-bionic-kernel.git] / include / asm-x86_64 / ia32.h

#ifndef _ASM_X86_64_IA32_H
#define _ASM_X86_64_IA32_H

#include <linux/config.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 {
			int _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);
#endif

#endif /* !CONFIG_IA32_SUPPORT */
 
#endif
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_X86_64_IA32_H
	2	#define _ASM_X86_64_IA32_H
	3
	4	#include <linux/config.h>
	5
	6	#ifdef CONFIG_IA32_EMULATION
	7
	8	#include <linux/compat.h>
	9
	10	/*
	11	* 32 bit structures for IA32 support.
	12	*/
	13
	14	#include <asm/sigcontext32.h>
	15
	16	/* signal.h */
	17	struct sigaction32 {
	18	unsigned int sa_handler; /* Really a pointer, but need to deal
	19	with 32 bits */
	20	unsigned int sa_flags;
	21	unsigned int sa_restorer; /* Another 32 bit pointer */
	22	compat_sigset_t sa_mask; /* A 32 bit mask */
	23	};
	24
	25	struct old_sigaction32 {
	26	unsigned int sa_handler; /* Really a pointer, but need to deal
	27	with 32 bits */
	28	compat_old_sigset_t sa_mask; /* A 32 bit mask */
	29	unsigned int sa_flags;
	30	unsigned int sa_restorer; /* Another 32 bit pointer */
	31	};
	32
	33	typedef struct sigaltstack_ia32 {
	34	unsigned int ss_sp;
	35	int ss_flags;
	36	unsigned int ss_size;
	37	} stack_ia32_t;
	38
	39	struct ucontext_ia32 {
	40	unsigned int uc_flags;
	41	unsigned int uc_link;
	42	stack_ia32_t uc_stack;
	43	struct sigcontext_ia32 uc_mcontext;
	44	compat_sigset_t uc_sigmask; /* mask last for extensibility */
	45	};
	46
	47	/* This matches struct stat64 in glibc2.2, hence the absolutely
	48	* insane amounts of padding around dev_t's.
	49	*/
	50	struct stat64 {
	51	unsigned long long st_dev;
	52	unsigned char __pad0[4];
	53
	54	#define STAT64_HAS_BROKEN_ST_INO 1
	55	unsigned int __st_ino;
	56
	57	unsigned int st_mode;
	58	unsigned int st_nlink;
	59
	60	unsigned int st_uid;
	61	unsigned int st_gid;
	62
	63	unsigned long long st_rdev;
	64	unsigned char __pad3[4];
65
66	long long st_size;
67	unsigned int st_blksize;
68
69	long long st_blocks;/* Number 512-byte blocks allocated. */
70
71	unsigned st_atime;
72	unsigned st_atime_nsec;
73	unsigned st_mtime;
74	unsigned st_mtime_nsec;
75	unsigned st_ctime;
76	unsigned st_ctime_nsec;
77
78	unsigned long long st_ino;
79	} __attribute__((packed));
80
81	typedef struct compat_siginfo{
82	int si_signo;
83	int si_errno;
84	int si_code;
85
86	union {
87	int _pad[((128/sizeof(int)) - 3)];
88
89	/* kill() */
90	struct {
91	unsigned int _pid; /* sender's pid */
92	unsigned int _uid; /* sender's uid */
93	} _kill;
94
95	/* POSIX.1b timers */
96	struct {
97	int _tid; /* timer id */
98	int _overrun; /* overrun count */
99	compat_sigval_t _sigval; /* same as below */
100	int _sys_private; /* not to be passed to user */
101	int _overrun_incr; /* amount to add to overrun */
102	} _timer;
103
104	/* POSIX.1b signals */
105	struct {
106	unsigned int _pid; /* sender's pid */
107	unsigned int _uid; /* sender's uid */
108	compat_sigval_t _sigval;
109	} _rt;
110
111	/* SIGCHLD */
112	struct {
113	unsigned int _pid; /* which child */
114	unsigned int _uid; /* sender's uid */
115	int _status; /* exit code */
116	compat_clock_t _utime;
117	compat_clock_t _stime;
118	} _sigchld;
119
120	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
121	struct {
122	unsigned int _addr; /* faulting insn/memory ref. */
123	} _sigfault;
124
125	/* SIGPOLL */
126	struct {
127	int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
128	int _fd;
129	} _sigpoll;
130	} _sifields;
131	} compat_siginfo_t;
132
133	struct sigframe32
134	{
135	u32 pretcode;
136	int sig;
137	struct sigcontext_ia32 sc;
138	struct _fpstate_ia32 fpstate;
139	unsigned int extramask[_COMPAT_NSIG_WORDS-1];
140	};
141
142	struct rt_sigframe32
143	{
144	u32 pretcode;
145	int sig;
146	u32 pinfo;
147	u32 puc;
148	compat_siginfo_t info;
149	struct ucontext_ia32 uc;
150	struct _fpstate_ia32 fpstate;
151	};
152
153	struct ustat32 {
154	__u32 f_tfree;
155	compat_ino_t f_tinode;
156	char f_fname[6];
157	char f_fpack[6];
158	};
159
160	#define IA32_STACK_TOP IA32_PAGE_OFFSET
161
162	#ifdef __KERNEL__
163	struct user_desc;
164	struct siginfo_t;
165	int do_get_thread_area(struct thread_struct t, struct user_desc __user info);
166	int do_set_thread_area(struct thread_struct t, struct user_desc __user info);
167	int ia32_child_tls(struct task_struct p, struct pt_regs childregs);
168	#endif
169
170	#endif /* !CONFIG_IA32_SUPPORT */
171
172	#endif