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New port: VxWorks on 64-bit Sparc


This port was originally done for some (I think very old) version of GCC
at Wind River and wound its way through a whole lot of people.  I
significantly simplified and reworked it.

Mon Jan  1 21:28:29 2001  Richard Kenner  <kenner@vlsi1.ultra.nyu.edu>

	* config.gcc (sparc64-wrs-vxworks*): New case.
	* config/sparc/vxsparc64.h, config/sparc/t-vxsparc64: New files.

*** config.gcc	2001/01/01 13:19:19	1.16
--- config.gcc	2001/01/02 02:49:28
*************** sparc-tti-*)
*** 2951,2954 ****
--- 2951,2959 ----
  	xm_defines=USG
  	;;
+ sparc64-wrs-vxworks*)
+         tm_file="sparc/sol2.h sparc/elf.h sparc/vxsparc64.h"
+         tmake_file=sparc/t-vxsparc64
+         use_collect2=yes
+         ;;
  sparc-wrs-vxworks* | sparclite-wrs-vxworks*)
  	tm_file=sparc/vxsparc.h
*** /dev/null	Mon Dec 18 09:19:59 2000
--- config/sparc/vxsparc64.h	Mon Jan  1 16:28:24 2001
***************
*** 0 ****
--- 1,95 ----
+ /* Definitions of target machine for GNU compiler.
+    64-bit VxWorks Sparc version.
+    Copyright (C) 2001 Free Software Foundation, Inc.
+ 
+ This file is part of GNU CC.
+ 
+ GNU CC is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2, or (at your option)
+ any later version.
+ 
+ GNU CC is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+ 
+ You should have received a copy of the GNU General Public License
+ along with GNU CC; see the file COPYING.  If not, write to
+ the Free Software Foundation, 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.  */
+ 
+ /* Specify this in a cover file to provide bi-architecture (32/64) support.  */
+ #define SPARC_BI_ARCH
+ 
+ /* Specify what to link with.  */
+ /* VxWorks does all the library stuff itself.  */
+ #undef	LIB_SPEC
+ #define	LIB_SPEC "-r"
+ 
+ /* VxWorks provides the functionality of crt0.o and friends itself.  */
+ #undef  STARTFILE_SPEC
+ #undef	ENDFILE_SPEC
+ #define	STARTFILE_SPEC ""
+ #define	ENDFILE_SPEC ""
+ 
+ #undef LINK_SPEC
+ #define LINK_SPEC ""
+ 
+ /* We need to prohibit dots in constructor labels so that we can build a
+    table of { string, address } entries for each non-static name in a
+    program.  The address, being of the form &name, it cannot contain a dot or
+    C will try to parse it as a &struct.field phrase. */
+ #undef NO_DOLLAR_IN_LABEL
+ #undef DOLLARS_IN_IDENTIFIERS
+ #define DOLLARS_IN_IDENTIFIERS 1
+ #define NO_DOT_IN_LABEL
+ 
+ /* Enable #pragma pack(n) */
+ #define HANDLE_SYSV_PRAGMA
+ 
+ /* We use stabs for debugging */
+ #undef PREFERRED_DEBUGGING_TYPE
+ #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+ 
+ /* Longs are still only 32bits for vxWorks, even for UltraSPARC */
+ #undef LONG_TYPE_SIZE
+ #define LONG_TYPE_SIZE          32
+ 
+ #undef CPP_ARCH32_SPEC
+ #define CPP_ARCH32_SPEC "-Acpu(sparc) -Amachine(sparc)"
+ #undef CPP_ARCH64_SPEC
+ #define CPP_ARCH64_SPEC \
+ "-Dsparc64 -D__arch64__ -Acpu(sparc64) -Amachine(sparc64)"
+ 
+ #undef CPP_PREDEFINES
+ #define CPP_PREDEFINES "-D__vxworks -D__sparc__ -Dsparc -D__GCC_NEW_VARARGS__"
+ 
+ /* Note that we define CPU here even if the user has specified -ansi.
+    This violates user namespace, but the VxWorks headers, and potentially
+    user code, all explicitly rely upon the definition of CPU in order to get
+    the proper processor information.  */
+ #undef CPP_SPEC
+ #define CPP_SPEC "%(cpp_cpu) %(cpp_arch) -DCPU=ULTRASPARC -D__CPU__=CPU"
+ 
+ #undef TARGET_DEFAULT
+ #define TARGET_DEFAULT (MASK_APP_REGS | MASK_EPILOGUE | MASK_FPU \
+ 			| MASK_LONG_DOUBLE_128 | MASK_64BIT)
+ 
+ #undef SPARC_DEFAULT_CMODEL
+ #define SPARC_DEFAULT_CMODEL CM_MEDLOW
+ 
+ #undef PTRDIFF_TYPE
+ #undef SIZE_TYPE
+ #undef WCHAR_TYPE
+ #undef WCHAR_TYPE_SIZE
+ 
+ #define PTRDIFF_TYPE "long int"
+ #define SIZE_TYPE "unsigned int"
+ #define WCHAR_TYPE "char"
+ #define WCHAR_TYPE_SIZE 8
+ 
+ /* US Software GOFAST library support.  */
+ #include "gofast.h"
+ #undef INIT_SUBTARGET_OPTABS
+ #define INIT_SUBTARGET_OPTABS INIT_GOFAST_OPTABS
*** /dev/null	Mon Dec 18 09:19:59 2000
--- config/sparc/t-vxsparc64	Mon Jan  1 15:12:38 2001
***************
*** 0 ****
--- 1,32 ----
+ LIBGCC1 =
+ CROSS_LIBGCC1 =
+ 
+ # We don't want to build .umul, etc., because VxWorks provides them,
+ # which means that libgcc1-test will fail.
+ LIBGCC1_TEST =
+ 
+ # We don't want to put exit in libgcc.a for VxWorks, because VxWorks
+ # does not have _exit.
+ TARGET_LIBGCC2_CFLAGS = -Dexit=unused_exit
+ 
+ # fp-bit and dp-bit are really part of libgcc1, but this will cause
+ # them to be built correctly, so... [taken from t-sparclite]
+ LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c
+ 
+ dp-bit.c: $(srcdir)/config/fp-bit.c
+ 	echo '#define US_SOFTWARE_GOFAST' > dp-bit.c
+ 	cat $(srcdir)/config/fp-bit.c >> dp-bit.c
+ 
+ fp-bit.c: $(srcdir)/config/fp-bit.c
+ 	echo '#define FLOAT' > fp-bit.c
+ 	echo '#define US_SOFTWARE_GOFAST' >> fp-bit.c
+ 	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
+ 
+ MULTILIB_OPTIONS=O0
+ MULTILIB_DIRNAMES=O0
+ MULTILIB_MATCHES=
+ MULTILIB_EXCEPTIONS=
+ MULTILIB_EXTRA_OPTS=m64 mcpu=ultrasparc
+ 
+ LIBGCC = stmp-multilib
+ INSTALL_LIBGCC = install-multilib

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