From 312f482d395b591398296b5472a3884a12716cbd Mon Sep 17 00:00:00 2001
From: Waldemar Brodkorb <wbx@openadk.org>
Date: Sat, 17 Oct 2015 11:17:07 +0200
Subject: lm32: add new architecture

Add support for FPGA systems from Lattice Semiconductor
http://www.latticesemi.com
Merge https://github.com/m-labs/uclibc-lm32.git
---
 libc/sysdeps/linux/lm32/bits/syscalls.h | 59 +++++++++++++++++++++++++++++++++
 1 file changed, 59 insertions(+)
 create mode 100644 libc/sysdeps/linux/lm32/bits/syscalls.h

(limited to 'libc/sysdeps/linux/lm32/bits/syscalls.h')

diff --git a/libc/sysdeps/linux/lm32/bits/syscalls.h b/libc/sysdeps/linux/lm32/bits/syscalls.h
new file mode 100644
index 000000000..29569545b
--- /dev/null
+++ b/libc/sysdeps/linux/lm32/bits/syscalls.h
@@ -0,0 +1,59 @@
+#ifndef _BITS_SYSCALLS_H
+#define _BITS_SYSCALLS_H
+#ifndef _SYSCALL_H
+# error "Never use <bits/syscalls.h> directly; include <sys/syscall.h> instead."
+#endif
+
+
+#ifndef __ASSEMBLER__
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...)                    \
+        ({                                                              \
+                LOAD_ARGS_##nr (args);                                  \
+                register int __ret __asm__("r1");                       \
+                register int _scno __asm__("r8") = name;                \
+                __asm__ __volatile__("scall"                            \
+                              : "=r" (__ret)                            \
+                              :  "r"(_scno) ASM_ARGS_##nr               \
+                              : __SYSCALL_CLOBBERS );                   \
+                __ret;                                                  \
+        })
+
+/* original port had ret >= -125 ?! */
+#define LOAD_ARGS_0() do { } while(0)
+#define ASM_ARGS_0
+#define LOAD_ARGS_1(a1)                                 \
+	int _a1 = (int)(a1);				\
+	LOAD_ARGS_0();					\
+	register int __a1 __asm__("r1") = _a1
+#define ASM_ARGS_1      ASM_ARGS_0, "0"(__a1)
+#define LOAD_ARGS_2(a1, a2)                             \
+	int _a2 = (int)(a2);				\
+	LOAD_ARGS_1(a1);				\
+	register int __a2 __asm__("r2") = _a2
+#define ASM_ARGS_2      ASM_ARGS_1, "r"(__a2)
+#define LOAD_ARGS_3(a1, a2, a3)                         \
+	int _a3 = (int)(a3);				\
+	LOAD_ARGS_2(a1, a2);				\
+	register int __a3 __asm__("r3") = _a3
+#define ASM_ARGS_3      ASM_ARGS_2, "r"(__a3)
+#define LOAD_ARGS_4(a1, a2, a3, a4)                     \
+	int _a4 = (int)(a4);				\
+	LOAD_ARGS_3(a1, a2, a3);			\
+	register int __a4 __asm__("r4") = _a4
+#define ASM_ARGS_4      ASM_ARGS_3, "r"(__a4)
+#define LOAD_ARGS_5(a1, a2, a3, a4, a5)                 \
+	int _a5 = (int)(a5);				\
+	LOAD_ARGS_4(a1, a2, a3, a4);			\
+	register int __a5 __asm__("r5") = _a5
+#define ASM_ARGS_5      ASM_ARGS_4, "r"(__a5)
+#define LOAD_ARGS_6(a1, a2, a3, a4, a5, a6)             \
+	int _a6 = (int)(a6);				\
+	LOAD_ARGS_5(a1, a2, a3, a4, a5);		\
+	register int __a6 __asm__("r6") = _a6
+#define ASM_ARGS_6      ASM_ARGS_5, "r"(__a6)
+
+#define __SYSCALL_CLOBBERS
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */
-- 
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