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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 21:05:42 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-23 01:55:20 -0400
commitbb8985586b7a906e116db835c64773b7a7d51663 (patch)
treede93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/ia32.h
parent8ede0bdb63305d3353efd97e9af6210afb05734e (diff)
x86, um: ... and asm-x86 move
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/include/asm/ia32.h')
-rw-r--r--arch/x86/include/asm/ia32.h170
1 files changed, 170 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h
new file mode 100644
index 000000000000..f932f7ad51dd
--- /dev/null
+++ b/arch/x86/include/asm/ia32.h
@@ -0,0 +1,170 @@
1#ifndef ASM_X86__IA32_H
2#define ASM_X86__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 */
16struct 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
24struct 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
32typedef struct sigaltstack_ia32 {
33 unsigned int ss_sp;
34 int ss_flags;
35 unsigned int ss_size;
36} stack_ia32_t;
37
38struct 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 */
49struct 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
80typedef 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
132struct sigframe32 {
133 u32 pretcode;
134 int sig;
135 struct sigcontext_ia32 sc;
136 struct _fpstate_ia32 fpstate;
137 unsigned int extramask[_COMPAT_NSIG_WORDS-1];
138};
139
140struct rt_sigframe32 {
141 u32 pretcode;
142 int sig;
143 u32 pinfo;
144 u32 puc;
145 compat_siginfo_t info;
146 struct ucontext_ia32 uc;
147 struct _fpstate_ia32 fpstate;
148};
149
150struct ustat32 {
151 __u32 f_tfree;
152 compat_ino_t f_tinode;
153 char f_fname[6];
154 char f_fpack[6];
155};
156
157#define IA32_STACK_TOP IA32_PAGE_OFFSET
158
159#ifdef __KERNEL__
160struct linux_binprm;
161extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
162 unsigned long stack_top, int exec_stack);
163struct mm_struct;
164extern void ia32_pick_mmap_layout(struct mm_struct *mm);
165
166#endif
167
168#endif /* !CONFIG_IA32_SUPPORT */
169
170#endif /* ASM_X86__IA32_H */
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