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 struct ucontext_ia32 { 33 unsigned int uc_flags; 34 unsigned int uc_link; 35 compat_stack_t uc_stack; 36 struct sigcontext_ia32 uc_mcontext; 37 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 38 }; 39 40 struct ucontext_x32 { 41 unsigned int uc_flags; 42 unsigned int uc_link; 43 compat_stack_t uc_stack; 44 unsigned int uc__pad0; /* needed for alignment */ 45 struct sigcontext uc_mcontext; /* the 64-bit sigcontext type */ 46 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 47 }; 48 49 /* This matches struct stat64 in glibc2.2, hence the absolutely 50 * insane amounts of padding around dev_t's. 51 */ 52 struct stat64 { 53 unsigned long long st_dev; 54 unsigned char __pad0[4]; 55 56 #define STAT64_HAS_BROKEN_ST_INO 1 57 unsigned int __st_ino; 58 59 unsigned int st_mode; 60 unsigned int st_nlink; 61 62 unsigned int st_uid; 63 unsigned int st_gid; 64 65 unsigned long long st_rdev; 66 unsigned char __pad3[4]; 67 68 long long st_size; 69 unsigned int st_blksize; 70 71 long long st_blocks;/* Number 512-byte blocks allocated */ 72 73 unsigned st_atime; 74 unsigned st_atime_nsec; 75 unsigned st_mtime; 76 unsigned st_mtime_nsec; 77 unsigned st_ctime; 78 unsigned st_ctime_nsec; 79 80 unsigned long long st_ino; 81 } __attribute__((packed)); 82 83 #define IA32_STACK_TOP IA32_PAGE_OFFSET 84 85 #ifdef __KERNEL__ 86 struct linux_binprm; 87 extern int ia32_setup_arg_pages(struct linux_binprm *bprm, 88 unsigned long stack_top, int exec_stack); 89 struct mm_struct; 90 extern void ia32_pick_mmap_layout(struct mm_struct *mm); 91 92 #endif 93 94 #endif /* !CONFIG_IA32_SUPPORT */ 95 96 #endif /* _ASM_X86_IA32_H */ 97