alpha*-*-gnu* target configuration

[Roland McGrath]

These patches add support for the alpha*-*-gnu* target configuration.  
This should not affect any other target or configuration.  There is no
working Alpha GNU/Hurd system yet, so a bootstrap test is not possible.


Thanks,
Roland



2002-04-13  Roland McGrath  <roland@frob.com>

	* config.gcc (alpha*-*-gnu*): New target configuration.
	* config/alpha/gnu.h: New file for it.
	* config/gnu.h (TARGET_MEM_FUNCTIONS): #undef before #define.

Index: gcc/config.gcc
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config.gcc,v
retrieving revision 1.184
diff -p -u -r1.184 config.gcc
--- gcc/config.gcc	12 Apr 2002 23:02:40 -0000	1.184
+++ gcc/config.gcc	13 Apr 2002 20:09:48 -0000
@@ -308,6 +308,9 @@ case $machine in
 	# But here we need a little extra magic.
 	tmake_file="t-slibgcc-elf-ver t-linux t-gnu"
 	case $machine in
+	alpha*)
+		tm_file="${cpu_type}/${cpu_type}.h alpha/elf.h alpha/linux.h alpha/linux-elf.h gnu.h ${tm_file}"
+		;;
 	i[34567]86-*-*)
 		tm_file="${cpu_type}/${cpu_type}.h i386/unix.h i386/att.h dbxelf.h elfos.h svr4.h linux.h i386/linux.h gnu.h ${tm_file}"
 		;;
@@ -484,6 +487,10 @@ alpha*-*-linux*)
 	if test x$enable_threads = xyes; then
 		thread_file='posix'
 	fi
+	;;
+alpha*-*-gnu*)
+	target_cpu_default="MASK_GAS"
+	tmake_file="${tmake_file} alpha/t-crtfm alpha/t-alpha alpha/t-ieee"
 	;;
 alpha*-*-freebsd*)
 	tm_file="${tm_file} ${fbsd_tm_file} alpha/elf.h alpha/freebsd.h"
Index: gcc/config/gnu.h
===================================================================
RCS file: /cvs/gcc/gcc/gcc/config/gnu.h,v
retrieving revision 1.3
diff -p -u -r1.3 gnu.h
--- gcc/config/gnu.h	15 Sep 1999 21:41:13 -0000	1.3
+++ gcc/config/gnu.h	13 Apr 2002 20:09:48 -0000
@@ -13,6 +13,7 @@
 #define STANDARD_INCLUDE_DIR "/include"
 
 /* Implicit library calls should use memcpy, not bcopy, etc.  */
+#undef TARGET_MEM_FUNCTIONS
 #define TARGET_MEM_FUNCTIONS
 
 /* The system headers under GNU are C++-aware.  */

--- /dev/null	Thu Aug 30 13:30:55 2001
+++ gcc/config/alpha/gnu.h	Sat Apr 13 13:20:35 2002
@@ -0,0 +1,23 @@
+/* Configuration for an Alpha running GNU with ELF as the target machine.  */
+
+#undef TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (Alpha GNU)");
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES \
+"-D__GNU__ -Dgnu_hurd -Dunix -Asystem=gnu -D_LONGLONG -D__alpha__ -D__ELF__"
+
+#undef ELF_DYNAMIC_LINKER
+#define ELF_DYNAMIC_LINKER	"/lib/ld.so"
+
+#undef	STARTFILE_SPEC
+#define STARTFILE_SPEC \
+  "%{!shared: \
+     %{!static: \
+       %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
+     %{static:crt0.o%s}} \
+   crti.o%s \
+   %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
+
+/* FIXME: Is a Hurd-specific fallback mechanism necessary?  */
+#undef MD_FALLBACK_FRAME_STATE_FOR