1 files changed, 48 insertions, 6 deletions
diff --git a/libc/sysdeps/linux/microblaze/bits/syscalls.h b/libc/sysdeps/linux/microblaze/bits/syscalls.h
index b21851333..f4bdc4522 100644
--- a/libc/sysdeps/linux/microblaze/bits/syscalls.h
+++ b/libc/sysdeps/linux/microblaze/bits/syscalls.h
@@ -4,12 +4,54 @@
 # error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
 #endif
 
-#include <features.h>
 
-/* Do something very evil for now.  Until we create our own syscall
- * macros, short circuit bits/sysnum.h  and use asm/unistd.h instead */
-#warning "fixme -- add arch specific syscall macros.h"
-#include <asm/unistd.h>
+#ifndef __ASSEMBLER__
 
-#endif /* _BITS_SYSCALLS_H */
+#include <errno.h>
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...)			\
+	({								\
+		register int __ret __asm__("r3");			\
+		register int _scno __asm__("r12") = name;		\
+		LOAD_ARGS_##nr (args);					\
+		__asm__ __volatile__("brki	r14, 0x8"		\
+			      : "=r" (__ret)				\
+			      :  "r"(_scno) ASM_ARGS_##nr		\
+			      : __SYSCALL_CLOBBERS );			\
+		__ret;							\
+	})
+
+#define INTERNAL_SYSCALL_ERROR_P(val, err)		\
+	((unsigned int)(val) >= 0xfffff001U)
 
+#define LOAD_ARGS_0() do { } while(0)
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(a1)				\
+	register int _a1 __asm__("r5") = (int)(a1);	\
+	LOAD_ARGS_0()
+#define ASM_ARGS_1	ASM_ARGS_0, "r"(_a1)
+#define LOAD_ARGS_2(a1, a2)				\
+	register int _a2 __asm__("r6") = (int)(a2);	\
+	LOAD_ARGS_1(a1)
+#define ASM_ARGS_2	ASM_ARGS_1, "r"(_a2)
+#define LOAD_ARGS_3(a1, a2, a3)				\
+	register int _a3 __asm__("r7") = (int)(a3);	\
+	LOAD_ARGS_2(a1, a2)
+#define ASM_ARGS_3	ASM_ARGS_2, "r"(_a3)
+#define LOAD_ARGS_4(a1, a2, a3, a4)			\
+	register int _a4 __asm__("r8") = (int)(a4);	\
+	LOAD_ARGS_3(a1, a2, a3)
+#define ASM_ARGS_4	ASM_ARGS_3, "r"(_a4)
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5)			\
+	register int _a5 __asm__("r9") = (int)(a5);	\
+	LOAD_ARGS_4(a1, a2, a3, a4)
+#define ASM_ARGS_5	ASM_ARGS_4, "r"(_a5)
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6)		\
+	register int _a6 __asm__("r10") = (int)(a6);	\
+	LOAD_ARGS_5(a1, a2, a3, a4, a5)
+#define ASM_ARGS_6	ASM_ARGS_5, "r"(_a6)
+
+#define __SYSCALL_CLOBBERS "r4", "r14", "cc", "memory"
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */