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authorWaldemar Brodkorb <wbx@openadk.org>2015-10-17 11:17:07 +0200
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2015-10-19 01:37:11 +0200
commit312f482d395b591398296b5472a3884a12716cbd (patch)
tree682402fa4c470d4aa7c1334f7616408779559a8f /libc/sysdeps/linux/lm32/bits/syscalls.h
parentc807e03c88504cf01508daa6dbae9e93dacfcf3c (diff)
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
Diffstat (limited to 'libc/sysdeps/linux/lm32/bits/syscalls.h')
-rw-r--r--libc/sysdeps/linux/lm32/bits/syscalls.h59
1 files changed, 59 insertions, 0 deletions
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 */