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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /arch/x86/include/asm/ia32.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/include/asm/ia32.h')
-rw-r--r-- | arch/x86/include/asm/ia32.h | 94 |
1 files changed, 94 insertions, 0 deletions
diff --git a/arch/x86/include/asm/ia32.h b/arch/x86/include/asm/ia32.h new file mode 100644 index 0000000000..9805629479 --- /dev/null +++ b/arch/x86/include/asm/ia32.h @@ -0,0 +1,94 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_X86_IA32_H +#define _ASM_X86_IA32_H + + +#ifdef CONFIG_IA32_EMULATION + +#include <linux/compat.h> + +/* + * 32 bit structures for IA32 support. + */ + +#include <uapi/asm/sigcontext.h> + +/* signal.h */ + +struct ucontext_ia32 { + unsigned int uc_flags; + unsigned int uc_link; + compat_stack_t uc_stack; + struct sigcontext_32 uc_mcontext; + compat_sigset_t uc_sigmask; /* mask last for extensibility */ +}; + +/* This matches struct stat64 in glibc2.2, hence the absolutely + * insane amounts of padding around dev_t's. + */ +struct stat64 { + unsigned long long st_dev; + unsigned char __pad0[4]; + +#define STAT64_HAS_BROKEN_ST_INO 1 + unsigned int __st_ino; + + unsigned int st_mode; + unsigned int st_nlink; + + unsigned int st_uid; + unsigned int st_gid; + + unsigned long long st_rdev; + unsigned char __pad3[4]; + + long long st_size; + unsigned int st_blksize; + + long long st_blocks;/* Number 512-byte blocks allocated */ + + unsigned st_atime; + unsigned st_atime_nsec; + unsigned st_mtime; + unsigned st_mtime_nsec; + unsigned st_ctime; + unsigned st_ctime_nsec; + + unsigned long long st_ino; +} __attribute__((packed)); + +#define IA32_STACK_TOP IA32_PAGE_OFFSET + +#ifdef __KERNEL__ +struct linux_binprm; +extern int ia32_setup_arg_pages(struct linux_binprm *bprm, + unsigned long stack_top, int exec_stack); +struct mm_struct; +extern void ia32_pick_mmap_layout(struct mm_struct *mm); + +#endif + +extern bool __ia32_enabled; + +static inline bool ia32_enabled(void) +{ + return __ia32_enabled; +} + +static inline void ia32_disable(void) +{ + __ia32_enabled = false; +} + +#else /* !CONFIG_IA32_EMULATION */ + +static inline bool ia32_enabled(void) +{ + return IS_ENABLED(CONFIG_X86_32); +} + +static inline void ia32_disable(void) {} + +#endif + +#endif /* _ASM_X86_IA32_H */ |