2005-08-22 Phil Edwards <phil@codesourcery.com>

	* config.gcc (*-*-vxworks*):  Update tm_file, add extra_options,
	remove use_collect2.
	(powerpc-wrs-vxworks):  Update, split out *-*-vxworksae target.

	* target-def.h (TARGET_HAVE_CTORS_DTORS):  Allow target
	configuration files to override the default value.

	* config/t-vxworks:  Remove INSTALL_ASSERT_H.  Define STMP_FIXPROTO,
	EXTRA_HEADERS, and EXTRA_MULTILIB_PARTS.
	* config/vx-common.h:  New file, split out from...
	* config/vxworks.h:  here.  Update for VxWorks 6.x and RTP mode.
	* config/vxworksae.h:  New file, for VxWorks AE.
	* config/vxworks.opt:  New file.
	* config/vxlib.c:  Update for VxWorks 6.

	* config/rs6000/t-vxworks (MULTILIB_OPTIONS):  New list.  Adjust
	other MULTILIB_* variables appropriately.
	(LIB2FUNCS_EXTRA, EXTRA_MULTILIB_PARTS):  Correct from t-ppccomm.
	* config/rs6000/t-vxworksae:  New file, adjust multilibs for AE.
	* config/rs6000/vxworks.h:  Update for VxWorks 6.
	* config/rs6000/vxworksae.h:  New file, mostly placeholder for now.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@103432 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 99 insertions, 0 deletions

diff --git a/gcc/config/vx-common.h b/gcc/config/vx-common.h
new file mode 100644
index 00000000000..baa37f0e80e
--- /dev/null
+++ b/gcc/config/vx-common.h
@@ -0,0 +1,99 @@
+/* Target-independent configuration for VxWorks and VxWorks AE.   
+   Copyright (C) 2005 Free Software Foundation, Inc.
+   Contributed by by CodeSourcery, LLC.
+
+This file is part of GCC.
+
+GCC 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.
+
+GCC 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 GCC; see the file COPYING.  If not, write to the Free
+Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+02110-1301, USA.  */
+
+/* VxWorks headers are C++-aware.  */
+#undef  NO_IMPLICIT_EXTERN_C
+#define NO_IMPLICIT_EXTERN_C
+
+/* Most of these will probably be overridden by subsequent headers.  We
+   undefine them here just in case, and define VXWORKS_ versions of each,
+   to be used in port-specific vxworks.h.  */
+#undef LIB_SPEC
+#undef LINK_SPEC
+#undef LIBGCC_SPEC
+#define LIBGCC_SPEC VXWORKS_LIBGCC_SPEC
+#undef STARTFILE_SPEC
+#undef ENDFILE_SPEC
+
+/* Most of these macros are overridden in "config/vxworks.h" or
+   "config/vxworksae.h" and are here merely for documentation
+   purposes.  */
+#define VXWORKS_ADDITIONAL_CPP_SPEC ""
+#define	VXWORKS_LIB_SPEC ""
+#define VXWORKS_LINK_SPEC ""
+#define VXWORKS_LIBGCC_SPEC ""
+#define	VXWORKS_STARTFILE_SPEC ""
+#define VXWORKS_ENDFILE_SPEC ""
+
+/* VxWorks cannot have dots in constructor labels, because it uses a
+   mutant variation of collect2 that generates C code instead of
+   assembly.  Thus each constructor label must be a legitimate C
+   symbol.  FIXME: Have VxWorks use real collect2 instead.  */
+#undef NO_DOLLAR_IN_LABEL
+#define NO_DOT_IN_LABEL
+
+/* VxWorks uses wchar_t == unsigned short (UCS2) on all architectures.  */
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "short unsigned int"
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 16
+
+/* Dwarf2 unwind info is not supported.  */
+#define DWARF2_UNWIND_INFO 0
+
+/* VxWorks uses DWARF2.  */
+#define DWARF2_DEBUGGING_INFO 1
+#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
+
+/* None of these other formats is supported.  */
+#undef DWARF_DEBUGGING_INFO
+#undef DBX_DEBUGGING_INFO
+#undef SDB_DEBUGGING_INFO
+#undef XCOFF_DEBUGGING_INFO
+#undef VMS_DEBUGGING_INFO
+
+/* Kernel mode doesn't have ctors/dtors, but RTP mode does.  */
+#define TARGET_HAVE_CTORS_DTORS false
+#define VXWORKS_OVERRIDE_OPTIONS /* empty */
+
+/* No math library needed.  */
+#define MATH_LIBRARY ""
+
+/* No profiling.  */
+#define VXWORKS_FUNCTION_PROFILER(FILE, LABELNO) do	\
+{							\
+  sorry ("profiler support for VxWorks");		\
+} while (0)
+
+/* This section either contains dynamic relocations, or contains
+   PC-rel indirections to stubs in the data section which contain dynamic
+   relocations.  General dynamic relocations are not processed
+   for shared libraries' text segments, and PC-relative displacements
+   from the text segment to the data segment don't work.  So force
+   it to .gcc_except_section, which the linker will place in .data.  */
+
+void vxworks_exception_section (void);
+#undef TARGET_ASM_EXCEPTION_SECTION
+#define TARGET_ASM_EXCEPTION_SECTION default_exception_section
+
+/* We occasionally need to distinguish between the VxWorks variants.  */
+#define VXWORKS_KIND_NORMAL  1
+#define VXWORKS_KIND_AE      2