1 #ifndef _ASM_X86_64_IA32_H
2 #define _ASM_X86_64_IA32_H
3
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 {
96 compat_timer_t _tid; /* timer id */
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 linux_binprm;
163 extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
164 unsigned long stack_top, int exec_stack);
165 struct mm_struct;
166 extern void ia32_pick_mmap_layout(struct mm_struct *mm);
167
168 #endif
169
170 #endif /* !CONFIG_IA32_SUPPORT */
171
172 #endif
173
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