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 */ 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 struct ucontext_x32 { 47 unsigned int uc_flags; 48 unsigned int uc_link; 49 stack_ia32_t uc_stack; 50 unsigned int uc__pad0; /* needed for alignment */ 51 struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */ 52 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 53 }; 54 55 /* This matches struct stat64 in glibc2.2, hence the absolutely 56 * insane amounts of padding around dev_t's. 57 */ 58 struct stat64 { 59 unsigned long long st_dev; 60 unsigned char __pad0[4]; 61 62 #define STAT64_HAS_BROKEN_ST_INO 1 63 unsigned int __st_ino; 64 65 unsigned int st_mode; 66 unsigned int st_nlink; 67 68 unsigned int st_uid; 69 unsigned int st_gid; 70 71 unsigned long long st_rdev; 72 unsigned char __pad3[4]; 73 74 long long st_size; 75 unsigned int st_blksize; 76 77 long long st_blocks;/* Number 512-byte blocks allocated */ 78 79 unsigned st_atime; 80 unsigned st_atime_nsec; 81 unsigned st_mtime; 82 unsigned st_mtime_nsec; 83 unsigned st_ctime; 84 unsigned st_ctime_nsec; 85 86 unsigned long long st_ino; 87 } __attribute__((packed)); 88 89 typedef struct compat_siginfo { 90 int si_signo; 91 int si_errno; 92 int si_code; 93 94 union { 95 int _pad[((128 / sizeof(int)) - 3)]; 96 97 /* kill() */ 98 struct { 99 unsigned int _pid; /* sender's pid */ 100 unsigned int _uid; /* sender's uid */ 101 } _kill; 102 103 /* POSIX.1b timers */ 104 struct { 105 compat_timer_t _tid; /* timer id */ 106 int _overrun; /* overrun count */ 107 compat_sigval_t _sigval; /* same as below */ 108 int _sys_private; /* not to be passed to user */ 109 int _overrun_incr; /* amount to add to overrun */ 110 } _timer; 111 112 /* POSIX.1b signals */ 113 struct { 114 unsigned int _pid; /* sender's pid */ 115 unsigned int _uid; /* sender's uid */ 116 compat_sigval_t _sigval; 117 } _rt; 118 119 /* SIGCHLD */ 120 struct { 121 unsigned int _pid; /* which child */ 122 unsigned int _uid; /* sender's uid */ 123 int _status; /* exit code */ 124 compat_clock_t _utime; 125 compat_clock_t _stime; 126 } _sigchld; 127 128 /* SIGCHLD (x32 version) */ 129 struct { 130 unsigned int _pid; /* which child */ 131 unsigned int _uid; /* sender's uid */ 132 int _status; /* exit code */ 133 compat_s64 _utime; 134 compat_s64 _stime; 135 } _sigchld_x32; 136 137 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */ 138 struct { 139 unsigned int _addr; /* faulting insn/memory ref. */ 140 } _sigfault; 141 142 /* SIGPOLL */ 143 struct { 144 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 145 int _fd; 146 } _sigpoll; 147 } _sifields; 148 } compat_siginfo_t; 149 150 #define IA32_STACK_TOP IA32_PAGE_OFFSET 151 152 #ifdef __KERNEL__ 153 struct linux_binprm; 154 extern int ia32_setup_arg_pages(struct linux_binprm *bprm, 155 unsigned long stack_top, int exec_stack); 156 struct mm_struct; 157 extern void ia32_pick_mmap_layout(struct mm_struct *mm); 158 159 #endif 160 161 #endif /* !CONFIG_IA32_SUPPORT */ 162 163 #endif /* _ASM_X86_IA32_H */ 164