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 */ 171