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@@ -0,0 +1,119 @@
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+/* Unlike the asm/unistd.h kernel header file (which this is partly based on),
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+ * this file must be able to cope with PIC and non-PIC code. For some arches
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+ * there is no difference. For x86 (which has far too few registers) there is
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+ * a difference. Regardless, including asm/unistd.h is hereby officially
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+ * forbidden. Don't do it. It is bad for you. */
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+
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+#include <features.h>
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+
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+// TODO -- Add support for __UCLIBC_USE_UNIFIED_SYSCALL__
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+
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+
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+#define __sys2(x) #x
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+#define __sys1(x) __sys2(x)
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+
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+#ifndef __syscall
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+#define __syscall(name) "swi\t" __sys1(__NR_##name) "\n\t"
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+#endif
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+
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+#define __syscall_return(type, res) \
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+do { \
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+ if ((unsigned long)(res) >= (unsigned long)(-125)) { \
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+ errno = -(res); \
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+ res = -1; \
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+ } \
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+ return (type) (res); \
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+} while (0)
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+
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+
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+#define _syscall0(type,name) \
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+type name(void) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ __syscall(name) \
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+ "mov %0,r0" \
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+ :"=r" (__res) : : "r0","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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+#define _syscall1(type,name,type1,arg1) \
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+type name(type1 arg1) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ "mov\tr0,%1\n\t" \
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+ __syscall(name) \
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+ "mov %0,r0" \
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+ : "=r" (__res) \
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+ : "r" ((long)(arg1)) \
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+ : "r0","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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+#define _syscall2(type,name,type1,arg1,type2,arg2) \
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+type name(type1 arg1,type2 arg2) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ "mov\tr0,%1\n\t" \
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+ "mov\tr1,%2\n\t" \
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+ __syscall(name) \
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+ "mov\t%0,r0" \
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+ : "=r" (__res) \
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+ : "r" ((long)(arg1)),"r" ((long)(arg2)) \
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+ : "r0","r1","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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+
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+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
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+type name(type1 arg1,type2 arg2,type3 arg3) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ "mov\tr0,%1\n\t" \
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+ "mov\tr1,%2\n\t" \
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+ "mov\tr2,%3\n\t" \
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+ __syscall(name) \
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+ "mov\t%0,r0" \
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+ : "=r" (__res) \
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+ : "r" ((long)(arg1)),"r" ((long)(arg2)),"r" ((long)(arg3)) \
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+ : "r0","r1","r2","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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+#undef _syscall4
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+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4)\
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+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ "mov\tr0,%1\n\t" \
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+ "mov\tr1,%2\n\t" \
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+ "mov\tr2,%3\n\t" \
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+ "mov\tr3,%4\n\t" \
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+ __syscall(name) \
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+ "mov\t%0,r0" \
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+ : "=r" (__res) \
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+ : "r" ((long)(arg1)),"r" ((long)(arg2)), \
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+ "r" ((long)(arg3)),"r" ((long)(arg4)) \
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+ : "r0","r1","r2","r3","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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+#undef _syscall5
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+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4,type5,arg5)\
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+type name(type1 arg1, type2 arg2, type3 arg3, type4 arg4, type5 arg5) { \
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+ long __res; \
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+ __asm__ __volatile__ ( \
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+ "mov\tr0,%1\n\t" \
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+ "mov\tr1,%2\n\t" \
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+ "mov\tr2,%3\n\t" \
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+ "mov\tr3,%4\n\t" \
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+ "mov\tr4,%5\n\t" \
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+ __syscall(name) \
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+ "mov\t%0,r0" \
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+ : "=r" (__res) \
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+ : "r" ((long)(arg1)),"r" ((long)(arg2)), \
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+ "r" ((long)(arg3)),"r" ((long)(arg4)), \
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+ "r" ((long)(arg5)) \
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+ : "r0","r1","r2","r3","r4","lr"); \
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+ __syscall_return(type,__res); \
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+}
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+
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