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

* configure.host: Set have_crt0 to no for Arm targts when not
        providing syscalls.  Set sys_dir=arm unconditionally.
        Default have_crt0 based on sys_dir.
        * configure.in: Use have_crt0.
        * libc/configure.in: Ditto.
        * libc/sys/configure.in: Ditto.
        * configure: Regenerate.
        * libc/configure: Regenerate.
        * libc/sys/configure: Regenerate.
        * libc/sys/arm/Makefile.am (lib_a_SOURCES): Add aeabi_atexit.c.
        Only build other files when providing syscalls.
        * libc/sys/arm/Makefile.in: Regenerate.
        * libc/sys/arm/aeabi_atexit.c: New file.

newlib/ChangeLog

@@ -1,3 +1,19 @@
+2005-08-31  Paul Brook  <paul@codesourcery.com>
+
+	* configure.host: Set have_crt0 to no for Arm targts when not
+	providing syscalls.  Set sys_dir=arm unconditionally.
+	Default have_crt0 based on sys_dir.
+	* configure.in: Use have_crt0.
+	* libc/configure.in: Ditto.
+	* libc/sys/configure.in: Ditto.
+	* configure: Regenerate.
+	* libc/configure: Regenerate.
+	* libc/sys/configure: Regenerate.
+	* libc/sys/arm/Makefile.am (lib_a_SOURCES): Add aeabi_atexit.c.
+	Only build other files when providing syscalls.
+	* libc/sys/arm/Makefile.in: Regenerate.
+	* libc/sys/arm/aeabi_atexit.c: New file.
+
 2005-08-26  Christopher Faylor  <cgf@timesys.com>
 
 	* libc/include/string.h: Revert previous change.

newlib/configure

@@ -3205,7 +3205,7 @@ subdirs="${configdirs}"
 
 CRT0=
 CRT0_DIR=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
   CRT0_DIR=libc/
 fi

newlib/configure.host

@@ -42,6 +42,8 @@
 #   oext                object file extension - needed for libtool support
 #   crt1                name of crt1 object if one is provided
 #   crt1_dir            directory where crt1 object is found
+#   have_crt0		"yes"/"no" if crt0 is/isn't provided.
+#			"" if crt0 is provided when sys_dir is set
 
 newlib_cflags=
 libm_machine_dir=
@@ -55,6 +57,7 @@ unix_dir=
 mach_add_setjmp=
 crt1=
 crt1_dir=
+have_crt0=
 use_libtool=no
 have_sys_mach_dir=no
 default_newlib_io_long_long=no
@@ -318,8 +321,9 @@ case "${host}" in
 	sys_dir=arc
 	;;
   arm-*-*)
-	if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 	sys_dir=arm
+	if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
+	  have_crt0="no"
 	fi
 	;;
   crx*)
@@ -332,8 +336,9 @@ case "${host}" in
 	sys_dir=
 	;;
   ep9312-*-*)
-	if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 	sys_dir=arm
+	if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
+	  have_crt0="no"
 	fi
 	;;
   frv*)
@@ -413,13 +418,15 @@ case "${host}" in
 	unix_dir=unix
 	;;
   strongarm-*-*)
-	if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 	sys_dir=arm
+	if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
+	  have_crt0="no"
 	fi
 	;;
   thumb-*-*)
-	if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 	sys_dir=arm
+	if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
+	  have_crt0="no"
 	fi
 	;;
   tic80*)
@@ -444,8 +451,9 @@ case "${host}" in
 	sys_dir=w65
 	;;
   xscale-*-*)
-	if [ "x${newlib_may_supply_syscalls}" = "xyes" ] ; then
 	sys_dir=arm
+	if [ "x${newlib_may_supply_syscalls}" = "xno" ] ; then
+	  have_crt0="no"
 	fi
 	;;
   z8k-*-coff)
@@ -725,3 +733,7 @@ if [ "x${newlib_io_pos_args}" = "x" ]; then
 		newlib_io_pos_args="yes";
 	fi
 fi
+
+if test -z "${have_crt0}" && test -n "${sys_dir}"; then
+  have_crt0="yes"
+fi

newlib/configure.in

@@ -139,7 +139,7 @@ AC_CONFIG_SUBDIRS(${configdirs})
 
 CRT0=
 CRT0_DIR=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
   CRT0_DIR=libc/
 fi

newlib/libc/configure

@@ -3006,7 +3006,7 @@ subdirs="machine sys"
 
 
 CRT0=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
 fi
 

newlib/libc/configure.in

@@ -30,7 +30,7 @@ fi
 AC_CONFIG_SUBDIRS(machine sys)
 
 CRT0=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
 fi
 AC_SUBST(CRT0)

newlib/libc/sys/arm/Makefile.am

@@ -7,16 +7,18 @@ INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 noinst_LIBRARIES = lib.a
 
 if MAY_SUPPLY_SYSCALLS
-extra_objs = syscalls.o
+extra_objs = libcfunc.o trap.o syscalls.o
 else
 extra_objs =
 endif
 
-lib_a_SOURCES = libcfunc.c trap.S
+lib_a_SOURCES = aeabi_atexit.c
 lib_a_LIBADD = $(extra_objs)
 lib_a_DEPENDENCIES = $(extra_objs)
 
+if MAY_SUPPLY_SYSCALLS
 all: crt0.o
+endif
 
 ACLOCAL_AMFLAGS = -I ../../..
 CONFIG_STATUS_DEPENDENCIES = $(newlib_basedir)/configure.host

newlib/libc/sys/arm/Makefile.in

@@ -88,10 +88,10 @@ AUTOMAKE_OPTIONS = cygnus
 INCLUDES = $(NEWLIB_CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS)
 
 noinst_LIBRARIES = lib.a
-@MAY_SUPPLY_SYSCALLS_TRUE@extra_objs = syscalls.o
+@MAY_SUPPLY_SYSCALLS_TRUE@extra_objs = libcfunc.o trap.o syscalls.o
 @MAY_SUPPLY_SYSCALLS_FALSE@extra_objs = 
 
-lib_a_SOURCES = libcfunc.c trap.S
+lib_a_SOURCES = aeabi_atexit.c
 lib_a_LIBADD = $(extra_objs)
 lib_a_DEPENDENCIES = $(extra_objs)
 
@@ -106,7 +106,7 @@ LIBRARIES =  $(noinst_LIBRARIES)
 DEFS = @DEFS@ -I. -I$(srcdir) 
 CPPFLAGS = @CPPFLAGS@
 LIBS = @LIBS@
-lib_a_OBJECTS =  libcfunc.o trap.o
+lib_a_OBJECTS =  aeabi_atexit.o
 CFLAGS = @CFLAGS@
 COMPILE = $(CC) $(DEFS) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
 CCLD = $(CC)
@@ -325,7 +325,7 @@ mostlyclean-generic distclean-generic clean-generic \
 maintainer-clean-generic clean mostlyclean distclean maintainer-clean
 
 
-all: crt0.o
+@MAY_SUPPLY_SYSCALLS_TRUE@all: crt0.o
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.

newlib/libc/sys/arm/aeabi_atexit.c

@@ -0,0 +1,10 @@
+#include <stdlib.h>
+
+/* Register a function to be called by exit or when a shared library
+   is unloaded.  This routine is like __cxa_atexit, but uses the
+   calling sequence required by the ARM EABI.  */
+int
+__aeabi_atexit (void *arg, void (*func) (void *), void *d)
+{
+  return __cxa_atexit (func, arg, d);
+}

newlib/libc/sys/configure

@@ -2993,7 +2993,7 @@ if test -n "${sys_dir}"; then
 fi
 
 CRT0=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
 fi
 

newlib/libc/sys/configure.in

@@ -22,7 +22,7 @@ if test -n "${sys_dir}"; then
 fi
 
 CRT0=
-if test -n "${sys_dir}"; then
+if test "x${have_crt0}" = "xyes"; then
   CRT0=crt0.o
 fi
 AC_SUBST(CRT0)