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[PATCH] adds FreeBSD/sparc64 target


config/sparc/freebsd.h is still a little rough, but I would like to get
it committed and tweak it as I get more experience on the platform.


2001-12-10  David O'Brien  <obrien@FreeBSD.org>

	* config.gcc (sparc64-*-freebsd*): Add target.
	* config/sparc/freebsd.h: New file.
	* config/sparc/sparc.c: Give debugging info before aborting.
	* config/sparc/sparc.h (LIB_SPEC, LINK_SPEC): Don't define.
	* config/sparc/sunos4.h (LIB_SPEC, LINK_SPEC): Define.
	* config/sparc/sysv4.h (CPP_PREDEFINES): Undefine before defining.



Index: config.gcc
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config.gcc,v
retrieving revision 1.125
diff -u -r1.125 config.gcc
--- config.gcc	2001/12/06 17:34:55	1.125
+++ config.gcc	2001/12/10 07:04:10
@@ -3127,6 +3131,20 @@
 sparc64-*-elf*)
 	tm_file="${tm_file} dbxelf.h elfos.h svr4.h sparc/sysv4.h sparc/sol2.h sparc/sp64-elf.h"
 	extra_parts="crtbegin.o crtend.o"
+	;;
+sparc64-*-freebsd*|ultrasparc-*-freebsd*)
+	tm_file="${tm_file} ${fbsd_tm_file} dbxelf.h elfos.h sparc/sysv4.h sparc/freebsd.h"
+	xmake_file=none
+	case "x$with_cpu" in
+		x) with_cpu=ultrasparc ;;
+		*) echo "$with_cpu not supported for freebsd target"; exit 1 ;;
+	esac
+	# cross targeting sparc64-*-freeebsd* gets into an endless loop.
+	case "$build,$host" in
+		sparc64-*-freebsd*,sparc64-*-freebsd*) ;;
+		*) echo "*** defaulting to SJLJ exceptions ***" >&2
+		enable_sjlj_exceptions=yes ;;
+	esac
 	;;
 sparc64-*-linux*)		# 64-bit Sparc's running GNU/Linux
 	tmake_file="t-slibgcc-elf-ver t-linux sparc/t-linux64"

Index: config/sparc/sparc.c
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/sparc/sparc.c,v
retrieving revision 1.171
diff -u -r1.171 sparc.c
--- sparc.c	2001/12/09 20:13:16	1.171
+++ sparc.c	2001/12/10 07:02:38
@@ -1452,6 +1452,7 @@
       break;
 
     default:
+      internal_error("CM_ value is %d\n", sparc_cmodel);
       abort();
     }
 }
Index: config/sparc/sparc.h
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/sparc/sparc.h,v
retrieving revision 1.149
diff -u -r1.149 sparc.h
--- sparc.h	2001/12/06 11:49:42	1.149
+++ sparc.h	2001/12/10 07:02:39
@@ -329,14 +329,6 @@
 %| %{R} %{!pg:%{!p:%{fpic:-k} %{fPIC:-k}}} %{keep-local-as-symbols:-L} \
 %(asm_cpu) %(asm_relax)"
 
-#define LIB_SPEC "%{!shared:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}}"
-
-/* Provide required defaults for linker -e and -d switches.  */
-
-#define LINK_SPEC \
- "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp} %{static:-Bstatic} \
-  %{assert*} %{shared:%{!mimpure-text:-assert pure-text}}"
-
 /* This macro defines names of additional specifications to put in the specs
    that can be used in various specifications like CC1_SPEC.  Its definition
    is an initializer with a subgrouping for each command option.
Index: config/sparc/sunos4.h
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/sparc/sunos4.h,v
retrieving revision 1.10
diff -u -r1.10 sunos4.h
--- sunos4.h	2001/12/06 11:49:43	1.10
+++ sunos4.h	2001/12/10 07:02:39
@@ -23,6 +23,14 @@
 #undef CPP_PREDEFINES
 #define CPP_PREDEFINES "-Dsparc -Dsun -Dunix -Asystem=unix -Asystem=bsd"
 
+#define LIB_SPEC "%{!shared:%{!p:%{!pg:-lc}}%{p:-lc_p}%{pg:-lc_p} %{g:-lg}}"
+
+/* Provide required defaults for linker -e and -d switches.  */
+
+#define LINK_SPEC \
+ "%{!shared:%{!nostdlib:%{!r*:%{!e*:-e start}}} -dc -dp} %{static:-Bstatic} \
+  %{assert*} %{shared:%{!mimpure-text:-assert pure-text}}"
+
 /* Use N_BINCL stabs.  */
 
 #define DBX_USE_BINCL
Index: config/sparc/sysv4.h
===================================================================
RCS file: /cvs/gcc/egcs/gcc/config/sparc/sysv4.h,v
retrieving revision 1.22
diff -u -r1.22 sysv4.h
--- sysv4.h	2001/11/14 21:44:21	1.22
+++ sysv4.h	2001/12/10 07:02:39
@@ -51,6 +51,7 @@
 /* Provide a set of pre-definitions and pre-assertions appropriate for
    the Sparc running svr4.  __svr4__ is our extension.  */
 
+#undef  CPP_PREDEFINES
 #define CPP_PREDEFINES \
 "-Dsparc -Dunix -D__svr4__ -Asystem=unix -Asystem=svr4"
 
--- /dev/null	Sun Dec  9 23:00:00 2001
+++ config/sparc/freebsd.h	Sun Dec  9 23:02:55 2001
@@ -0,0 +1,153 @@
+/* Definitions for Sun Sparc64 running FreeBSD using the ELF format
+   Copyright (C) 2001 Free Software Foundation, Inc.
+   Contributed by David E. O'Brien <obrien@FreeBSD.org> and BSDi.
+
+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, 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* FreeBSD needs's the platform name (sparc64) defined.  */
+
+#undef  CPP_CPU64_DEFAULT_SPEC
+#define CPP_CPU64_DEFAULT_SPEC "-D__sparc64__ -D__sparc_v9__"
+
+#undef  CPP_PREDEFINES
+#define CPP_PREDEFINES FBSD_CPP_PREDEFINES
+
+#define LINK_SPEC "-m elf64_sparc %(link_arch)				\
+  %{!mno-relax:%{!r:-relax}						\
+  %{p:%e`-p' not supported; use `-pg' and gprof(1)}			\
+  %{Wl,*:%*}								\
+  %{assert*} %{R*} %{rpath*} %{defsym*}					\
+  %{shared:-Bshareable %{h*} %{soname*}}				\
+  %{symbolic:-Bsymbolic}						\
+  %{!shared:								\
+    %{!static:								\
+      %{rdynamic:-export-dynamic}					\
+      %{!dynamic-linker:-dynamic-linker /usr/libexec/ld-elf.so.1}}	\
+    %{static:-Bstatic}}"
+
+
+/************************[  Target stuff  ]***********************************/
+
+/* Define the actual types of some ANSI-mandated types.  
+   Needs to agree with <machine/ansi.h>.  GCC defaults come from c-decl.c,
+   c-common.c, and config/<arch>/<arch>.h.  */
+
+/* Earlier headers may get this wrong for FreeBSD.
+   We use the GCC defaults instead.  */
+#undef WCHAR_TYPE
+
+#undef  WCHAR_UNSIGNED
+#define WCHAR_UNSIGNED 0
+
+#undef  WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+/* Define for support of TFmode long double and REAL_ARITHMETIC.
+   Sparc ABI says that long double is 4 words.  */
+#undef  LONG_DOUBLE_TYPE_SIZE
+#define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
+
+/* Constant which presents upper bound of the above value.  */
+#undef  MAX_LONG_DOUBLE_TYPE_SIZE
+#define MAX_LONG_DOUBLE_TYPE_SIZE 128
+
+/* Define this to set long double type size to use in libgcc2.c, which can
+   not depend on target_flags.  */
+#if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
+#else
+#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
+#endif
+
+/* Definitions for 64-bit SPARC running systems with ELF. */
+
+#undef  SUBTARGET_SWITCHES
+#define SUBTARGET_SWITCHES						    \
+  {"long-double-64", -MASK_LONG_DOUBLE_128, N_("Use 64 bit long doubles") },  \
+  {"long-double-128", MASK_LONG_DOUBLE_128, N_("Use 128 bit long doubles") },
+
+#undef  TARGET_VERSION
+#define TARGET_VERSION fprintf (stderr, " (FreeBSD/sparc64 ELF)");
+
+#define TARGET_ELF		1
+
+/* XXX */
+/* A 64 bit v9 compiler with stack-bias,
+   in a Medium/mid code model environment.  */
+
+#undef  TARGET_DEFAULT
+#define TARGET_DEFAULT \
+  (MASK_V9 + MASK_64BIT + MASK_PTR64 + MASK_VIS + MASK_FASTER_STRUCTS \
+   + MASK_STACK_BIAS + MASK_APP_REGS /* + MASK_EPILOGUE */ + MASK_FPU \
+   + MASK_LONG_DOUBLE_128 /* + MASK_HARD_QUAD */)
+
+/* The default code model.  */
+#undef  SPARC_DEFAULT_CMODEL
+#define SPARC_DEFAULT_CMODEL	CM_MEDMID
+
+
+/************************[  Assembler stuff  ]********************************/
+
+/* XXX */
+#if 0
+#undef  ASM_CPU_DEFAULT_SPEC
+#define ASM_CPU_DEFAULT_SPEC "-Av9a"
+#endif
+
+/* XXX2 */
+/* This is how to output a definition of an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.  */
+
+#undef  ASM_OUTPUT_INTERNAL_LABEL
+#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM)			\
+  fprintf (FILE, ".L%s%d:\n", PREFIX, NUM)
+
+/* XXX2 */
+/* This is how to output a reference to an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.  */
+
+#undef  ASM_OUTPUT_INTERNAL_LABELREF
+#define ASM_OUTPUT_INTERNAL_LABELREF(FILE,PREFIX,NUM)			\
+  fprintf (FILE, ".L%s%d", PREFIX, NUM)
+
+/* XXX2 */
+/* This is how to store into the string LABEL
+   the symbol_ref name of an internal numbered label where
+   PREFIX is the class of label and NUM is the number within the class.
+   This is suitable for output with `assemble_name'.  */
+
+#undef  ASM_GENERATE_INTERNAL_LABEL
+#define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)			\
+  sprintf (LABEL, "*.L%s%d", PREFIX, NUM)
+
+
+/************************[  Debugger stuff  ]*********************************/
+
+/* This is the char to use for continuation (in case we need to turn
+   continuation back on).  */
+
+#undef  DBX_CONTIN_CHAR
+#define DBX_CONTIN_CHAR	'?'
+
+/* DWARF bits.  */
+
+/* Follow Irix 6 and not the Dwarf2 draft in using 64-bit offsets. 
+   Obviously the Dwarf2 folks havn't tried to actually build systems
+   with their spec.  On a 64-bit system, only 64-bit relocs become
+   RELATIVE relocations.  */
+
+/* #define DWARF_OFFSET_SIZE PTR_SIZE */


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