1 files changed, 95 insertions, 0 deletions
diff --git a/src/arch/aarch64/syscall.h b/src/arch/aarch64/syscall.h
new file mode 100644
index 0000000..c0ab7e2
--- /dev/null
+++ b/src/arch/aarch64/syscall.h
@@ -0,0 +1,95 @@
+/* SPDX-License-Identifier: MIT */
+
+#ifndef __INTERNAL__LIBURING_SYSCALL_H
+	#error "This file should be included from src/syscall.h (liburing)"
+#endif
+
+#ifndef LIBURING_ARCH_AARCH64_SYSCALL_H
+#define LIBURING_ARCH_AARCH64_SYSCALL_H
+
+#if defined(__aarch64__)
+
+#define __do_syscallN(...) ({						\
+	__asm__ volatile (						\
+		"svc 0"							\
+		: "=r"(x0)						\
+		: __VA_ARGS__						\
+		: "memory", "cc");					\
+	(long) x0;							\
+})
+
+#define __do_syscall0(__n) ({						\
+	register long x8 __asm__("x8") = __n;				\
+	register long x0 __asm__("x0");					\
+									\
+	__do_syscallN("r" (x8));					\
+})
+
+#define __do_syscall1(__n, __a) ({					\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0));				\
+})
+
+#define __do_syscall2(__n, __a, __b) ({					\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+	register __typeof__(__b) x1 __asm__("x1") = __b;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0), "r" (x1));			\
+})
+
+#define __do_syscall3(__n, __a, __b, __c) ({				\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+	register __typeof__(__b) x1 __asm__("x1") = __b;		\
+	register __typeof__(__c) x2 __asm__("x2") = __c;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2));		\
+})
+
+#define __do_syscall4(__n, __a, __b, __c, __d) ({			\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+	register __typeof__(__b) x1 __asm__("x1") = __b;		\
+	register __typeof__(__c) x2 __asm__("x2") = __c;		\
+	register __typeof__(__d) x3 __asm__("x3") = __d;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3));\
+})
+
+#define __do_syscall5(__n, __a, __b, __c, __d, __e) ({			\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+	register __typeof__(__b) x1 __asm__("x1") = __b;		\
+	register __typeof__(__c) x2 __asm__("x2") = __c;		\
+	register __typeof__(__d) x3 __asm__("x3") = __d;		\
+	register __typeof__(__e) x4 __asm__("x4") = __e;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3),	\
+			"r"(x4));					\
+})
+
+#define __do_syscall6(__n, __a, __b, __c, __d, __e, __f) ({		\
+	register long x8 __asm__("x8") = __n;				\
+	register __typeof__(__a) x0 __asm__("x0") = __a;		\
+	register __typeof__(__b) x1 __asm__("x1") = __b;		\
+	register __typeof__(__c) x2 __asm__("x2") = __c;		\
+	register __typeof__(__d) x3 __asm__("x3") = __d;		\
+	register __typeof__(__e) x4 __asm__("x4") = __e;		\
+	register __typeof__(__f) x5 __asm__("x5") = __f;		\
+									\
+	__do_syscallN("r" (x8), "0" (x0), "r" (x1), "r" (x2), "r" (x3),	\
+			"r" (x4), "r"(x5));				\
+})
+
+#include "../syscall-defs.h"
+
+#else /* #if defined(__aarch64__) */
+
+#include "../generic/syscall.h"
+
+#endif /* #if defined(__aarch64__) */
+
+#endif /* #ifndef LIBURING_ARCH_AARCH64_SYSCALL_H */