/* SPDX-License-Identifier: GPL-2.0 *//* * syscall_wrapper.h - arm64 specific wrappers to syscall definitions * * Based on arch/x86/include/asm_syscall_wrapper.h */ #ifndef __ASM_SYSCALL_WRAPPER_H#define __ASM_SYSCALL_WRAPPER_H #include <asm/ptrace.h> #ifdef CONFIG_COMPAT #define COMPAT_SC_ARM64_REGS_TO_ARGS(x, ...)			\	__MAP(x,__SC_ARGS					\	      ,,regs->regs[0],,regs->regs[1],,regs->regs[2]	\	      ,,regs->regs[3],,regs->regs[4],,regs->regs[5]) #define COMPAT_SYSCALL_DEFINEx(x, name, ...)						\	asmlinkage long __arm64_compat_sys##name(const struct pt_regs *regs);		\	ALLOW_ERROR_INJECTION(__arm64_compat_sys##name, ERRNO);				\	static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));		\	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\	asmlinkage long __arm64_compat_sys##name(const struct pt_regs *regs)		\	{										\		return __se_compat_sys##name(COMPAT_SC_ARM64_REGS_TO_ARGS(x,__VA_ARGS__));	\	}										\	static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))		\	{										\		return __do_compat_sys##name(__MAP(x,__SC_DELOUSE,__VA_ARGS__));	\	}										\	static inline long __do_compat_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #define COMPAT_SYSCALL_DEFINE0(sname)							\	asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused);	\	ALLOW_ERROR_INJECTION(__arm64_compat_sys_##sname, ERRNO);			\	asmlinkage long __arm64_compat_sys_##sname(const struct pt_regs *__unused) #define COND_SYSCALL_COMPAT(name) 							\	asmlinkage long __arm64_compat_sys_##name(const struct pt_regs *regs);		\	asmlinkage long __weak __arm64_compat_sys_##name(const struct pt_regs *regs)	\	{										\		return sys_ni_syscall();						\	} #endif /* CONFIG_COMPAT */ #define SC_ARM64_REGS_TO_ARGS(x, ...)				\	__MAP(x,__SC_ARGS					\	      ,,regs->orig_x0,,regs->regs[1],,regs->regs[2]	\	      ,,regs->regs[3],,regs->regs[4],,regs->regs[5]) #define __SYSCALL_DEFINEx(x, name, ...)						\	asmlinkage long __arm64_sys##name(const struct pt_regs *regs);		\	ALLOW_ERROR_INJECTION(__arm64_sys##name, ERRNO);			\	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__));		\	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));	\	asmlinkage long __arm64_sys##name(const struct pt_regs *regs)		\	{									\		return __se_sys##name(SC_ARM64_REGS_TO_ARGS(x,__VA_ARGS__));	\	}									\	static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__))		\	{									\		long ret = __do_sys##name(__MAP(x,__SC_CAST,__VA_ARGS__));	\		__MAP(x,__SC_TEST,__VA_ARGS__);					\		__PROTECT(x, ret,__MAP(x,__SC_ARGS,__VA_ARGS__));		\		return ret;							\	}									\	static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__)) #define SYSCALL_DEFINE0(sname)							\	SYSCALL_METADATA(_##sname, 0);						\	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused);	\	ALLOW_ERROR_INJECTION(__arm64_sys_##sname, ERRNO);			\	asmlinkage long __arm64_sys_##sname(const struct pt_regs *__unused) #define COND_SYSCALL(name)							\	asmlinkage long __arm64_sys_##name(const struct pt_regs *regs);		\	asmlinkage long __weak __arm64_sys_##name(const struct pt_regs *regs)	\	{									\		return sys_ni_syscall();					\	} asmlinkage long __arm64_sys_ni_syscall(const struct pt_regs *__unused); #endif /* __ASM_SYSCALL_WRAPPER_H */