blob: fddb53d63915b56129371eb39fc1123dec34ff70 [file] [log] [blame]
#ifndef _ASM_X86_VDSO_H
#define _ASM_X86_VDSO_H
#if defined CONFIG_X86_32 || defined CONFIG_COMPAT
extern const char VDSO32_PRELINK[];
* Given a pointer to the vDSO image, find the pointer to VDSO32_name
* as that symbol is defined in the vDSO sources or linker script.
#define VDSO32_SYMBOL(base, name) \
({ \
extern const char VDSO32_##name[]; \
(void __user *)(VDSO32_##name - VDSO32_PRELINK + \
(unsigned long)(base)); \
* These symbols are defined with the addresses in the vsyscall page.
* See vsyscall-sigreturn.S.
extern void __user __kernel_sigreturn;
extern void __user __kernel_rt_sigreturn;
* These symbols are defined by vdso32.S to mark the bounds
* of the ELF DSO images included therein.
extern const char vdso32_int80_start, vdso32_int80_end;
extern const char vdso32_syscall_start, vdso32_syscall_end;
extern const char vdso32_sysenter_start, vdso32_sysenter_end;
#endif /* _ASM_X86_VDSO_H */