[patch] More Arm EABI support routines

[Paul Brook <paul at codesourcery dot com>]

The attached patch adds some more routines defined by Arm EABI. These are 
implemented as wrappers around existing routines.

I'm not sure about the preferred implementation of strong_alias. I copied from 
libc/sys/linux/libc-symbols.h.

Tested with cross to arm-none-eabi.
Ok?

Paul

2005-08-31  Paul Brook  <paul@codesourcery.com>

	* libc/sys/arm/Makefile.am (lib_a_SOURCES): Add aeabi_memclr.c,
	aeabi_memcpy.c, aeabi_memmove.c and aeabi_memset.c.
	* libc/sys/arm/Makefile.in: Regenerate.
	* libc/sys/arm/aeabi.h: New file.
	* libc/sys/arm/aeabi_memclr.c: New file.
	* libc/sys/arm/aeabi_memcpy.c: New file.
	* libc/sys/arm/aeabi_memmove.c: New file.
	* libc/sys/arm/aeabi_memset.c: New file.

Index: newlib/libc/sys/arm/Makefile.am
===================================================================
RCS file: /var/cvsroot/src-cvs/src/newlib/libc/sys/arm/Makefile.am,v
retrieving revision 1.5
diff -u -p -r1.5 Makefile.am
--- newlib/libc/sys/arm/Makefile.am	31 Aug 2005 20:39:43 -0000	1.5
+++ newlib/libc/sys/arm/Makefile.am	31 Aug 2005 22:17:09 -0000
@@ -12,7 +12,8 @@ else
 extra_objs =
 endif
 
-lib_a_SOURCES = aeabi_atexit.c
+lib_a_SOURCES = aeabi_atexit.c aeabi_memclr.c aeabi_memcpy.c \
+		aeabi_memmove.c aeabi_memset.c
 lib_a_LIBADD = $(extra_objs)
 lib_a_DEPENDENCIES = $(extra_objs)
 
Index: newlib/libc/sys/arm/Makefile.in
===================================================================
RCS file: /var/cvsroot/src-cvs/src/newlib/libc/sys/arm/Makefile.in,v
retrieving revision 1.10
diff -u -p -r1.10 Makefile.in
--- newlib/libc/sys/arm/Makefile.in	31 Aug 2005 20:39:43 -0000	1.10
+++ newlib/libc/sys/arm/Makefile.in	31 Aug 2005 22:17:31 -0000
@@ -91,7 +91,8 @@ noinst_LIBRARIES = lib.a
 @MAY_SUPPLY_SYSCALLS_TRUE@extra_objs = libcfunc.o trap.o syscalls.o
 @MAY_SUPPLY_SYSCALLS_FALSE@extra_objs = 
 
-lib_a_SOURCES = aeabi_atexit.c
+lib_a_SOURCES = aeabi_atexit.c aeabi_memclr.c aeabi_memcpy.c 		aeabi_memmove.c aeabi_memset.c
+
 lib_a_LIBADD = $(extra_objs)
 lib_a_DEPENDENCIES = $(extra_objs)
 
@@ -106,7 +107,8 @@ LIBRARIES =  $(noinst_LIBRARIES)
 DEFS = @DEFS@ -I. -I$(srcdir) 
 CPPFLAGS = @CPPFLAGS@
 LIBS = @LIBS@
-lib_a_OBJECTS =  aeabi_atexit.o
+lib_a_OBJECTS =  aeabi_atexit.o aeabi_memclr.o aeabi_memcpy.o \
+aeabi_memmove.o aeabi_memset.o
 CFLAGS = @CFLAGS@
 COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 CCLD = $(CC)
Index: newlib/libc/sys/arm/aeabi.h
===================================================================
RCS file: newlib/libc/sys/arm/aeabi.h
diff -N newlib/libc/sys/arm/aeabi.h
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/sys/arm/aeabi.h	31 Aug 2005 22:14:56 -0000
@@ -0,0 +1,7 @@
+/* Include file with common definitions used by The Arm EABI support
+   routines.  */
+
+# define strong_alias(name, aliasname) _strong_alias(name, aliasname)
+# define _strong_alias(name, aliasname) \
+  extern __typeof (name) aliasname __attribute__ ((alias (#name)));
+
Index: newlib/libc/sys/arm/aeabi_memclr.c
===================================================================
RCS file: newlib/libc/sys/arm/aeabi_memclr.c
diff -N newlib/libc/sys/arm/aeabi_memclr.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/sys/arm/aeabi_memclr.c	31 Aug 2005 21:57:07 -0000
@@ -0,0 +1,13 @@
+#include <string.h>
+#include "aeabi.h"
+
+/* Clear memory.  */
+void
+__aeabi_memclr (void *dest, size_t n)
+{
+  memset (dest, 0, n);
+}
+
+/* Versions of the above which may assume memory alignment.  */
+strong_alias (__aeabi_memclr, __aeabi_memclr4)
+strong_alias (__aeabi_memclr, __aeabi_memclr8)
Index: newlib/libc/sys/arm/aeabi_memcpy.c
===================================================================
RCS file: newlib/libc/sys/arm/aeabi_memcpy.c
diff -N newlib/libc/sys/arm/aeabi_memcpy.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/sys/arm/aeabi_memcpy.c	31 Aug 2005 21:57:53 -0000
@@ -0,0 +1,13 @@
+#include <string.h>
+#include "aeabi.h"
+
+/* Copy memory like memcpy, but no return value required.  */
+void
+__aeabi_memcpy (void *dest, const void *src, size_t n)
+{
+  memcpy (dest, src, n);
+}
+
+/* Versions of the above which may assume memory alignment.  */
+strong_alias (__aeabi_memcpy, __aeabi_memcpy4)
+strong_alias (__aeabi_memcpy, __aeabi_memcpy8)
Index: newlib/libc/sys/arm/aeabi_memmove.c
===================================================================
RCS file: newlib/libc/sys/arm/aeabi_memmove.c
diff -N newlib/libc/sys/arm/aeabi_memmove.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/sys/arm/aeabi_memmove.c	31 Aug 2005 21:58:26 -0000
@@ -0,0 +1,13 @@
+#include <string.h>
+#include "aeabi.h"
+
+/* Copy memory like memmove, but no return value required.  */
+void
+__aeabi_memmove (void *dest, const void *src, size_t n)
+{
+  memmove (dest, src, n);
+}
+
+/* Versions of the above which may assume memory alignment.  */
+strong_alias (__aeabi_memmove, __aeabi_memmove4)
+strong_alias (__aeabi_memmove, __aeabi_memmove8)
Index: newlib/libc/sys/arm/aeabi_memset.c
===================================================================
RCS file: newlib/libc/sys/arm/aeabi_memset.c
diff -N newlib/libc/sys/arm/aeabi_memset.c
--- /dev/null	1 Jan 1970 00:00:00 -0000
+++ newlib/libc/sys/arm/aeabi_memset.c	31 Aug 2005 21:58:54 -0000
@@ -0,0 +1,14 @@
+#include <string.h>
+#include "aeabi.h"
+
+/* Set memory like memset, but different argument order and no return
+   value required.  */
+void
+__aeabi_memset (void *dest, size_t n, int c)
+{
+  memset (dest, c, n);
+}
+
+/* Versions of the above which may assume memory alignment.  */
+strong_alias (__aeabi_memset, __aeabi_memset4)
+strong_alias (__aeabi_memset, __aeabi_memset8)