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

#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
Commit	Line	Data
1da177e4 LT	1	#ifndef _ASM_X86_64_IA32_H
	2	#define _ASM_X86_64_IA32_H
	3
1da177e4 LT	4
	5	#ifdef CONFIG_IA32_EMULATION
	6
	7	#include <linux/compat.h>
	8
	9	/*
	10	* 32 bit structures for IA32 support.
	11	*/
	12
	13	#include <asm/sigcontext32.h>
	14
	15	/* signal.h */
	16	struct sigaction32 {
	17	unsigned int sa_handler; /* Really a pointer, but need to deal
	18	with 32 bits */
	19	unsigned int sa_flags;
	20	unsigned int sa_restorer; /* Another 32 bit pointer */
	21	compat_sigset_t sa_mask; /* A 32 bit mask */
	22	};
	23
	24	struct old_sigaction32 {
	25	unsigned int sa_handler; /* Really a pointer, but need to deal
	26	with 32 bits */
	27	compat_old_sigset_t sa_mask; /* A 32 bit mask */
	28	unsigned int sa_flags;
	29	unsigned int sa_restorer; /* Another 32 bit pointer */
	30	};
	31
	32	typedef struct sigaltstack_ia32 {
	33	unsigned int ss_sp;
	34	int ss_flags;
	35	unsigned int ss_size;
	36	} stack_ia32_t;
	37
	38	struct ucontext_ia32 {
	39	unsigned int uc_flags;
	40	unsigned int uc_link;
	41	stack_ia32_t uc_stack;
	42	struct sigcontext_ia32 uc_mcontext;
	43	compat_sigset_t uc_sigmask; /* mask last for extensibility */
	44	};
	45
	46	/* This matches struct stat64 in glibc2.2, hence the absolutely
	47	* insane amounts of padding around dev_t's.
	48	*/
	49	struct stat64 {
	50	unsigned long long st_dev;
	51	unsigned char __pad0[4];
	52
	53	#define STAT64_HAS_BROKEN_ST_INO 1
	54	unsigned int __st_ino;
	55
	56	unsigned int st_mode;
	57	unsigned int st_nlink;
	58
	59	unsigned int st_uid;
	60	unsigned int st_gid;
	61
	62	unsigned long long st_rdev;
	63	unsigned char __pad3[4];
	64
	65	long long st_size;
	66	unsigned int st_blksize;
	67
68	long long st_blocks;/* Number 512-byte blocks allocated. */
69
70	unsigned st_atime;
71	unsigned st_atime_nsec;
72	unsigned st_mtime;
73	unsigned st_mtime_nsec;
74	unsigned st_ctime;
75	unsigned st_ctime_nsec;
76
77	unsigned long long st_ino;
78	} __attribute__((packed));
79
80	typedef struct compat_siginfo{
81	int si_signo;
82	int si_errno;
83	int si_code;
84
85	union {
86	int _pad[((128/sizeof(int)) - 3)];
87
88	/* kill() */
89	struct {
90	unsigned int _pid; /* sender's pid */
91	unsigned int _uid; /* sender's uid */
92	} _kill;
93
94	/* POSIX.1b timers */
95	struct {
0d77e5a2	96	compat_timer_t _tid; /* timer id */
1da177e4 LT	97	int _overrun; /* overrun count */
	98	compat_sigval_t _sigval; /* same as below */
	99	int _sys_private; /* not to be passed to user */
	100	int _overrun_incr; /* amount to add to overrun */
	101	} _timer;
	102
	103	/* POSIX.1b signals */
	104	struct {
	105	unsigned int _pid; /* sender's pid */
	106	unsigned int _uid; /* sender's uid */
	107	compat_sigval_t _sigval;
	108	} _rt;
	109
	110	/* SIGCHLD */
	111	struct {
	112	unsigned int _pid; /* which child */
	113	unsigned int _uid; /* sender's uid */
	114	int _status; /* exit code */
	115	compat_clock_t _utime;
	116	compat_clock_t _stime;
	117	} _sigchld;
	118
	119	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
	120	struct {
	121	unsigned int _addr; /* faulting insn/memory ref. */
	122	} _sigfault;
	123
	124	/* SIGPOLL */
	125	struct {
	126	int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
	127	int _fd;
	128	} _sigpoll;
	129	} _sifields;
	130	} compat_siginfo_t;
	131
	132	struct sigframe32
	133	{
	134	u32 pretcode;
	135	int sig;
	136	struct sigcontext_ia32 sc;
	137	struct _fpstate_ia32 fpstate;
	138	unsigned int extramask[_COMPAT_NSIG_WORDS-1];
	139	};
	140
	141	struct rt_sigframe32
	142	{
	143	u32 pretcode;
	144	int sig;
	145	u32 pinfo;
	146	u32 puc;
	147	compat_siginfo_t info;
	148	struct ucontext_ia32 uc;
	149	struct _fpstate_ia32 fpstate;
	150	};
	151
	152	struct ustat32 {
	153	__u32 f_tfree;
	154	compat_ino_t f_tinode;
	155	char f_fname[6];
	156	char f_fpack[6];
	157	};
	158
	159	#define IA32_STACK_TOP IA32_PAGE_OFFSET
	160
161	#ifdef __KERNEL__
162	struct user_desc;
163	struct siginfo_t;
164	int do_get_thread_area(struct thread_struct t, struct user_desc __user info);
165	int do_set_thread_area(struct thread_struct t, struct user_desc __user info);
166	int ia32_child_tls(struct task_struct p, struct pt_regs childregs);
ea0be473 AK	167
	168	struct linux_binprm;
	169	extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
	170	unsigned long stack_top, int exec_stack);
8817210d AK	171	struct mm_struct;
8817210d AK	172	extern void ia32_pick_mmap_layout(struct mm_struct *mm);
ea0be473	173
1da177e4 LT	174	#endif
	175
	176	#endif /* !CONFIG_IA32_SUPPORT */
	177
	178	#endif