Inital import

[l4.git] / l4 / pkg / uclibc / lib / contrib / uclibc / libc / sysdeps / linux / avr32 / bits / syscalls.h

diff --git a/l4/pkg/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/avr32/bits/syscalls.h b/l4/pkg/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/avr32/bits/syscalls.h
new file mode 100644 (file)
index 0000000..48f15d4
--- /dev/null
+++ b/l4/pkg/uclibc/lib/contrib/uclibc/libc/sysdeps/linux/avr32/bits/syscalls.h
@@ -0,0 +1,54 @@
+#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__
+
+#include <errno.h>
+
+#define INTERNAL_SYSCALL_NCS(name, err, nr, args...)                   \
+       ({                                                              \
+               register int _a1 __asm__("r12");                        \
+               register int _scno __asm__("r8") = name;                \
+               LOAD_ARGS_##nr (args);                                  \
+               __asm__ __volatile__("scall     /* syscall " #name " */" \
+                             : "=r" (_a1)                              \
+                             : "r"(_scno) ASM_ARGS_##nr                \
+                             : "cc", "memory");                        \
+               _a1;                                                    \
+       })
+
+#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)                                        \
+       _a1 = (int) (a1);                               \
+       LOAD_ARGS_0()
+#define ASM_ARGS_1     ASM_ARGS_0, "r"(_a1)
+#define LOAD_ARGS_2(a1, a2)                            \
+       register int _a2 __asm__("r11") = (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__("r10") = (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__("r9") = (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__("r5") = (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__("r3") = (int)(a6);     \
+       LOAD_ARGS_5(a1, a2, a3, a4, a5)
+#define ASM_ARGS_6     ASM_ARGS_5, "r"(_a6)
+
+#endif /* __ASSEMBLER__ */
+#endif /* _BITS_SYSCALLS_H */