config.gcc: Add FreeBSD/PowerPC target.

2001-11-20  David O'Brien  <obrien@FreeBSD.org>
	* config.gcc: Add FreeBSD/PowerPC target.
	(powerpc64-*-linux*, powerpc-*-sysv*, powerpc-*-netbsd*,
	powerpc-*-chorusos*, powerpc-*-eabiaix*, powerpc-*-eabisim*,
	powerpc-*-elf*, powerpc-*-eabi*, powerpc-*-rtems*,
	powerpc-*-linux*libc1, powerpc-*-linux*, powerpc-wrs-vxworks*,
	powerpcle-wrs-vxworks*, powerpcle-*-sysv*, powerpcle-*-elf*,
	powerpcle-*-eabisim*, powerpcle-*-eabi*, powerpcle-*-solaris2*): Add
	freebsd-spec.h to tm_file.
	(rs6000-*-lynxos*): Add lynx.h to tm_file.
	* config/freebsd.h: Tidy up.
	(USING_CONFIG_FREEBSD): Define.
	(FBSD_SWITCH_TAKES_ARG, FBSD_WORD_SWITCH_TAKES_ARG,
	FBSD_CPP_PREDEFINES, FBSD_CPP_SPEC, FBSD_STARTFILE_SPEC,
	FBSD_ENDFILE_SPEC, FBSD_LIB_SPEC): Remove (moved to freebsd-spec.h).
	(TARGET_HAS_F_SETLKW): Define.
	(ASM_OUTPUT_IDENT): Delete, the elfos.h definition is fine.
	* config/freebsd-spec.h: New file.
	* config/rs6000/freebsd.h: New file.
	* config/rs6000/rs6000.h (TARGET_VERSION): Do not define.
	* config/rs6000/rs6000.c: Test for USING_ELFOS_H rather than
	USING_SVR4_H to know when to turn on ELF support.
	* config/rs6000/sysv4.h (TARGET_VERSION, CPP_PREDEFINES): Don't undef,
	define only if not already defined.
	Add FreeBSD support.
	* config/rs6000/aix.h (TARGET_VERSION): Define.
	* config/rs6000/beos.h: Likewise.
	* config/rs6000/darwin.h: Likewise.
	* config/rs6000/mach.h: Likewise.
	* config/rs6000/lynx.h (TARGET_VERSION): Likewise.
	Don't include lynx.h directly.

Approved by:  Geoff Keating <geoffk@geoffk.org>
              Message-Id: <200111192053.MAA11977@geoffk.org>
			  Stan Shebs <shebs@apple.com>  (Darwin bits)
              Message-ID: <3BF95F29.794BC924@apple.com>

From-SVN: r47229

1 files changed, 149 insertions, 0 deletions

diff --git a/gcc/config/freebsd-spec.h b/gcc/config/freebsd-spec.h
new file mode 100644
index 0000000..8b01536
--- /dev/null
+++ b/gcc/config/freebsd-spec.h
@@ -0,0 +1,149 @@
+/* Base configuration file for all FreeBSD targets.
+   Copyright (C) 1999, 2000, 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.  */
+
+/* Common FreeBSD configuration. 
+   All FreeBSD architectures should include this file, which will specify
+   their commonalities.
+   Adapted from gcc/config/freebsd.h by 
+   David O'Brien <obrien@FreeBSD.org>
+   Loren J. Rittle <ljrittle@acm.org>.  */
+
+
+/* In case we need to know.  */
+#define USING_CONFIG_FREEBSD_SPEC 1
+
+/* This defines which switch letters take arguments.  On FreeBSD, most of
+   the normal cases (defined in gcc.c) apply, and we also have -h* and
+   -z* options (for the linker) (coming from SVR4).
+   We also have -R (alias --rpath), no -z, --soname (-h), --assert etc.  */
+
+#define FBSD_SWITCH_TAKES_ARG(CHAR)					\
+  (DEFAULT_SWITCH_TAKES_ARG (CHAR)					\
+    || (CHAR) == 'h'							\
+    || (CHAR) == 'z' /* ignored by ld */				\
+    || (CHAR) == 'R')
+
+/* This defines which multi-letter switches take arguments.  */
+
+#define FBSD_WORD_SWITCH_TAKES_ARG(STR)					\
+  (DEFAULT_WORD_SWITCH_TAKES_ARG (STR)					\
+   || !strcmp ((STR), "rpath") || !strcmp ((STR), "rpath-link")		\
+   || !strcmp ((STR), "soname") || !strcmp ((STR), "defsym") 		\
+   || !strcmp ((STR), "assert") || !strcmp ((STR), "dynamic-linker"))
+
+#if FBSD_MAJOR == 6
+#define FBSD_CPP_PREDEFINES \
+  "-D__FreeBSD__=6 -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
+#endif
+
+#if FBSD_MAJOR == 5
+#define FBSD_CPP_PREDEFINES \
+  "-D__FreeBSD__=5 -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
+#endif
+
+#if FBSD_MAJOR == 4
+#define FBSD_CPP_PREDEFINES \
+  "-D__FreeBSD__=4 -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
+#endif
+
+#if FBSD_MAJOR == 3
+#define FBSD_CPP_PREDEFINES \
+  "-D__FreeBSD__=3 -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
+#endif
+
+#ifndef FBSD_CPP_PREDEFINES
+#define FBSD_CPP_PREDEFINES \
+  "-D__FreeBSD__   -Dunix -D__ELF__ -D__KPRINTF_ATTRIBUTE__ -Asystem=unix -Asystem=bsd -Asystem=FreeBSD"
+#endif
+
+/* Provide a CPP_SPEC appropriate for FreeBSD.  We just deal with the GCC 
+   option `-posix', and PIC issues.  */
+
+#define FBSD_CPP_SPEC "							\
+  %(cpp_cpu)								\
+  %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}		\
+  %{posix:-D_POSIX_SOURCE}"
+
+/* Provide a STARTFILE_SPEC appropriate for FreeBSD.  Here we add
+   the magical crtbegin.o file (see crtstuff.c) which provides part 
+	of the support for getting C++ file-scope static object constructed 
+	before entering `main'. */
+   
+#define FBSD_STARTFILE_SPEC \
+  "%{!shared: \
+     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
+		       %{!p:%{profile:gcrt1.o%s} \
+			 %{!profile:crt1.o%s}}}} \
+   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+
+/* Provide a ENDFILE_SPEC appropriate for FreeBSD.  Here we tack on
+   the magical crtend.o file (see crtstuff.c) which provides part of 
+	the support for getting C++ file-scope static object constructed 
+	before entering `main', followed by a normal "finalizer" file, 
+	`crtn.o'.  */
+
+#define FBSD_ENDFILE_SPEC \
+  "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+
+/* Provide a LIB_SPEC appropriate for FreeBSD as configured and as
+   required by the user-land thread model.  Before __FreeBSD_version
+   500016, select the appropriate libc, depending on whether we're
+   doing profiling or need threads support.  At __FreeBSD_version
+   500016 and later, when threads support is requested include both
+   -lc and -lc_r instead of only -lc_r.  To make matters interesting,
+   we can't actually use __FreeBSD_version provided by <osreldate.h>
+   directly since it breaks cross-compiling.  As a final twist, make
+   it a hard error if -pthread is provided on the command line and gcc
+   was configured with --disable-threads (this will help avoid bug
+   reports from users complaining about threading when they
+   misconfigured the gcc bootstrap but are later consulting FreeBSD
+   manual pages that refer to the mythical -pthread option).  */
+
+/* Provide a LIB_SPEC appropriate for FreeBSD.  Just select the appropriate
+   libc, depending on whether we're doing profiling or need threads support.
+   (simular to the default, except no -lg, and no -p).  */
+
+#ifdef FBSD_NO_THREADS
+#define FBSD_LIB_SPEC "							\
+  %{pthread: %eThe -pthread option is only supported on FreeBSD when gcc \
+is built with the --enable-threads configure-time option.}		\
+  %{!shared:								\
+    %{!pg: -lc}								\
+    %{pg:  -lc_p}							\
+  }"
+#else
+#if FBSD_MAJOR >= 5
+#define FBSD_LIB_SPEC "							\
+  %{!shared:								\
+    %{!pg: %{pthread:-lc_r} -lc}					\
+    %{pg:  %{pthread:-lc_r_p} -lc_p}					\
+  }"
+#else
+#define FBSD_LIB_SPEC "							\
+  %{!shared:								\
+    %{!pg:								\
+      %{!pthread:-lc}							\
+      %{pthread:-lc_r}}							\
+    %{pg:								\
+      %{!pthread:-lc_p}							\
+      %{pthread:-lc_r_p}}						\
+  }"
+#endif
+#endif