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/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_X86_VDSO_H #define _ASM_X86_VDSO_H #include <asm/page_types.h> #include <linux/linkage.h> #include <linux/init.h> #ifndef __ASSEMBLER__ #include <linux/mm_types.h> struct vdso_image { void *data; unsigned long size; /* Always a multiple of PAGE_SIZE */ unsigned long alt, alt_len; unsigned long extable_base, extable_len; const void *extable; long sym_vvar_start; /* Negative offset to the vvar area */ long sym_vvar_page; long sym_pvclock_page; long sym_hvclock_page; long sym_timens_page; long sym_VDSO32_NOTE_MASK; long sym___kernel_sigreturn; long sym___kernel_rt_sigreturn; long sym___kernel_vsyscall; long sym_int80_landing_pad; long sym_vdso32_sigreturn_landing_pad; long sym_vdso32_rt_sigreturn_landing_pad; }; #ifdef CONFIG_X86_64 extern const struct vdso_image vdso_image_64; #endif #ifdef CONFIG_X86_X32 extern const struct vdso_image vdso_image_x32; #endif #if defined CONFIG_X86_32 || defined CONFIG_COMPAT extern const struct vdso_image vdso_image_32; #endif extern void __init init_vdso_image(const struct vdso_image *image); extern int map_vdso_once(const struct vdso_image *image, unsigned long addr); extern bool fixup_vdso_exception(struct pt_regs *regs, int trapnr, unsigned long error_code, unsigned long fault_addr); #endif /* __ASSEMBLER__ */ #endif /* _ASM_X86_VDSO_H */