1 files changed, 124 insertions, 0 deletions
diff --git a/ldso/ldso/arm/dl-syscalls.h b/ldso/ldso/arm/dl-syscalls.h
new file mode 100644
index 000000000..aa08421a5
--- /dev/null
+++ b/ldso/ldso/arm/dl-syscalls.h
@@ -0,0 +1,124 @@
+#include <sys/types.h>
+
+/*
+ * This file contains the system call macros and syscall 
+ * numbers used by the shared library loader.
+ */
+
+#define __NR_SYSCALL_BASE	0x900000
+
+#define __NR_exit			(__NR_SYSCALL_BASE+  1)
+#define __NR_read			(__NR_SYSCALL_BASE+  3)
+#define __NR_write			(__NR_SYSCALL_BASE+  4)
+#define __NR_open			(__NR_SYSCALL_BASE+  5)
+#define __NR_close			(__NR_SYSCALL_BASE+  6)
+#define __NR_getuid			(__NR_SYSCALL_BASE+ 24)
+#define __NR_geteuid			(__NR_SYSCALL_BASE+ 49)
+#define __NR_getgid			(__NR_SYSCALL_BASE+ 47)
+#define __NR_getegid			(__NR_SYSCALL_BASE+ 50)
+#define __NR_mmap			(__NR_SYSCALL_BASE+ 90)
+#define __NR_munmap			(__NR_SYSCALL_BASE+ 91)
+#define __NR_stat			(__NR_SYSCALL_BASE+106)
+#define __NR_mprotect			(__NR_SYSCALL_BASE+125)
+
+
+/* Here are the macros which define how this platform makes
+ * system calls.  This particular variant does _not_ set 
+ * errno (note how it is disabled in __syscall_return) since
+ * these will get called before the errno symbol is dynamicly 
+ * linked. */
+
+/* These are Erik's versions of the syscall routines.  His were
+ * cleaner than mine, so I adopted them instead with some
+ * reformating.  Shane Nay.
+ */
+
+#define __sys2(x) #x
+#define __sys1(x) __sys2(x)
+
+#ifndef __syscall
+#define __syscall(name) "swi\t" __sys1(__NR_##name) "\n\t"
+#endif
+
+#undef __syscall_return
+#define __syscall_return(type, res)					\
+do {									\
+	if ((unsigned long)(res) >= (unsigned long)(-125)) {		\
+		/*errno = -(res);*/					\
+		res = -1;						\
+	}								\
+	return (type) (res);						\
+} while (0)
+
+#define _syscall0(type,name)						\
+type name(void) {							\
+  long __res;								\
+  __asm__ __volatile__ (						\
+  __syscall(name)							\
+  "mov %0,r0"								\
+  :"=r" (__res) : : "r0","lr");						\
+  __syscall_return(type,__res);						\
+}
+
+#define _syscall1(type,name,type1,arg1)					\
+type name(type1 arg1) {							\
+  long __res;								\
+  __asm__ __volatile__ (						\
+  "mov\tr0,%1\n\t"							\
+  __syscall(name)							\
+  "mov %0,r0"								\
+        : "=r" (__res)							\
+        : "r" ((long)(arg1))						\
+	: "r0","lr");							\
+  __syscall_return(type,__res);						\
+}
+
+#define _syscall2(type,name,type1,arg1,type2,arg2)			\
+type name(type1 arg1,type2 arg2) {					\
+  long __res;								\
+  __asm__ __volatile__ (						\
+  "mov\tr0,%1\n\t"							\
+  "mov\tr1,%2\n\t"							\
+  __syscall(name)							\
+  "mov\t%0,r0"								\
+        : "=r" (__res)							\
+        : "r" ((long)(arg1)),"r" ((long)(arg2))				\
+	: "r0","r1","lr");						\
+  __syscall_return(type,__res);						\
+}
+
+
+#define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3)		\
+type name(type1 arg1,type2 arg2,type3 arg3) {				\
+  long __res;								\
+  __asm__ __volatile__ (						\
+  "mov\tr0,%1\n\t"							\
+  "mov\tr1,%2\n\t"							\
+  "mov\tr2,%3\n\t"							\
+  __syscall(name)							\
+  "mov\t%0,r0"								\
+        : "=r" (__res)							\
+        : "r" ((long)(arg1)),"r" ((long)(arg2)),"r" ((long)(arg3))	\
+        : "r0","r1","r2","lr");						\
+  __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__ (						\
+  "mov\tr0,%1\n\t"							\
+  "mov\tr1,%2\n\t"							\
+  "mov\tr2,%3\n\t"							\
+  "mov\tr3,%4\n\t"							\
+  __syscall(name)							\
+  "mov\t%0,r0"								\
+  	: "=r" (__res)							\
+  	: "r" ((long)(arg1)),"r" ((long)(arg2)),                        \
+	  "r" ((long)(arg3)),"r" ((long)(arg4))	                        \
+  	: "r0","r1","r2","r3","lr");					\
+  __syscall_return(type,__res);						\
+}
+  
+