58 lines
1.4 KiB
C
58 lines
1.4 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_VDSO_H
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#define _ASM_X86_VDSO_H
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#include <asm/page_types.h>
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#include <linux/linkage.h>
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#include <linux/init.h>
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#ifndef __ASSEMBLER__
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#include <linux/mm_types.h>
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struct vdso_image {
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void *data;
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unsigned long size; /* Always a multiple of PAGE_SIZE */
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unsigned long alt, alt_len;
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unsigned long extable_base, extable_len;
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const void *extable;
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long sym_vvar_start; /* Negative offset to the vvar area */
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long sym_vvar_page;
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long sym_pvclock_page;
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long sym_hvclock_page;
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long sym_timens_page;
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long sym_VDSO32_NOTE_MASK;
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long sym___kernel_sigreturn;
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long sym___kernel_rt_sigreturn;
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long sym___kernel_vsyscall;
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long sym_int80_landing_pad;
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long sym_vdso32_sigreturn_landing_pad;
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long sym_vdso32_rt_sigreturn_landing_pad;
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};
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#ifdef CONFIG_X86_64
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extern const struct vdso_image vdso_image_64;
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#endif
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#ifdef CONFIG_X86_X32_ABI
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extern const struct vdso_image vdso_image_x32;
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#endif
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#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
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extern const struct vdso_image vdso_image_32;
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#endif
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extern void __init init_vdso_image(const struct vdso_image *image);
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extern int map_vdso_once(const struct vdso_image *image, unsigned long addr);
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extern bool fixup_vdso_exception(struct pt_regs *regs, int trapnr,
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unsigned long error_code,
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unsigned long fault_addr);
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#endif /* __ASSEMBLER__ */
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#endif /* _ASM_X86_VDSO_H */
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