1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef _ASM_X86_IA32_H 3 #define _ASM_X86_IA32_H 4 5 6 #ifdef CONFIG_IA32_EMULATION 7 8 #include <linux/compat.h> 9 10 /* 11 * 32 bit structures for IA32 support. 12 */ 13 14 #include <uapi/asm/sigcontext.h> 15 16 /* signal.h */ 17 18 struct ucontext_ia32 { 19 unsigned int uc_flags; 20 unsigned int uc_link; 21 compat_stack_t uc_stack; 22 struct sigcontext_32 uc_mcontext; 23 compat_sigset_t uc_sigmask; /* mask last for extensibility */ 24 }; 25 26 /* This matches struct stat64 in glibc2.2, hence the absolutely 27 * insane amounts of padding around dev_t's. 28 */ 29 struct stat64 { 30 unsigned long long st_dev; 31 unsigned char __pad0[4]; 32 33 #define STAT64_HAS_BROKEN_ST_INO 1 34 unsigned int __st_ino; 35 36 unsigned int st_mode; 37 unsigned int st_nlink; 38 39 unsigned int st_uid; 40 unsigned int st_gid; 41 42 unsigned long long st_rdev; 43 unsigned char __pad3[4]; 44 45 long long st_size; 46 unsigned int st_blksize; 47 48 long long st_blocks;/* Number 512-byte blocks allocated */ 49 50 unsigned st_atime; 51 unsigned st_atime_nsec; 52 unsigned st_mtime; 53 unsigned st_mtime_nsec; 54 unsigned st_ctime; 55 unsigned st_ctime_nsec; 56 57 unsigned long long st_ino; 58 } __attribute__((packed)); 59 60 #define IA32_STACK_TOP IA32_PAGE_OFFSET 61 62 #ifdef __KERNEL__ 63 struct linux_binprm; 64 extern int ia32_setup_arg_pages(struct linux_binprm *bprm, 65 unsigned long stack_top, int exec_stack); 66 struct mm_struct; 67 extern void ia32_pick_mmap_layout(struct mm_struct *mm); 68 69 #endif 70 71 #endif /* !CONFIG_IA32_SUPPORT */ 72 73 #endif /* _ASM_X86_IA32_H */ 74