LXR linux/arch/x86/include/asm/ia32.h

   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
  18struct 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 */
  29struct 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__
  63struct linux_binprm;
  64extern int ia32_setup_arg_pages(struct linux_binprm *bprm,
  65                                unsigned long stack_top, int exec_stack);
  66struct mm_struct;
  67extern 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