|
@@ -1,4 +1,8 @@
|
|
|
-#include <asm/unistd.h>
|
|
|
+/* Unlike the asm/unistd.h kernel header file (which this is partly based on),
|
|
|
+ * this file must be able to cope with PIC and non-PIC code. For some arches
|
|
|
+ * there is no difference. For x86 (which has far too few registers) there is
|
|
|
+ * a difference. Regardless, including asm/unistd.h is hereby officially
|
|
|
+ * forbidden. Don't do it. It is bad for you. */
|
|
|
|
|
|
#undef __syscall_return
|
|
|
#define __syscall_return(type, res) \
|
|
@@ -11,6 +15,18 @@ do { \
|
|
|
} while (0)
|
|
|
|
|
|
|
|
|
+#undef _syscall0
|
|
|
+#define _syscall0(type,name) \
|
|
|
+type name(void) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name)); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
#if defined(__PIC__)
|
|
|
|
|
|
/*
|
|
@@ -76,6 +92,68 @@ __asm__ volatile ("push %%ebx; movl %2,%%ebx; int $0x80; pop %%ebx" \
|
|
|
__syscall_return(type,__res); \
|
|
|
}
|
|
|
|
|
|
+#else /* not doing __PIC__ */
|
|
|
+
|
|
|
+#undef _syscall1
|
|
|
+#define _syscall1(type,name,type1,arg1) \
|
|
|
+type name(type1 arg1) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name),"b" ((long)(arg1))); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+#undef _syscall2
|
|
|
+#define _syscall2(type,name,type1,arg1,type2,arg2) \
|
|
|
+type name(type1 arg1,type2 arg2) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2))); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+#undef _syscall3
|
|
|
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \
|
|
|
+type name(type1 arg1,type2 arg2,type3 arg3) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
|
+ "d" ((long)(arg3))); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+#undef _syscall4
|
|
|
+#define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \
|
|
|
+type name (type1 arg1, type2 arg2, type3 arg3, type4 arg4) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
|
+ "d" ((long)(arg3)),"S" ((long)(arg4))); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+#undef _syscall5
|
|
|
+#define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \
|
|
|
+ type5,arg5) \
|
|
|
+type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \
|
|
|
+{ \
|
|
|
+long __res; \
|
|
|
+__asm__ volatile ("int $0x80" \
|
|
|
+ : "=a" (__res) \
|
|
|
+ : "0" (__NR_##name),"b" ((long)(arg1)),"c" ((long)(arg2)), \
|
|
|
+ "d" ((long)(arg3)),"S" ((long)(arg4)),"D" ((long)(arg5))); \
|
|
|
+__syscall_return(type,__res); \
|
|
|
+}
|
|
|
+
|
|
|
+
|
|
|
#endif /* __PIC__ */
|
|
|
|
|
|
|