Commit of arm32 architecture sources for GCC 2.7.2

gnu/usr.bin/gcc/arch/arm32/config.h

@@ -0,0 +1,4 @@
+#define NETBSD_NATIVE
+#define DEFAULT_TARGET_VERSION "2.7.2"
+#define DEFAULT_TARGET_MACHINE "NetBSD/arm32"
+#include "arm32/xm-netbsd.h"

gnu/usr.bin/gcc/arch/arm32/hconfig.h

@@ -0,0 +1 @@
+#include "arm32/xm-netbsd.h"

gnu/usr.bin/gcc/arch/arm32/netbsd.h

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+/* Definitions of target machine for GNU compiler.
+   NetBSD/arm (RiscBSD) version.
+   Copyright (C) 1993, 1994 Free Software Foundation, Inc.
+   Contributed by Mark Brinicombe (amb@physig.ph.kcl.ac.uk)
+
+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.  */
+
+/* Ok it either ARM2 or ARM3 code is produced we need to define the
+ * appropriate symbol and delete the ARM6 symbol
+ */
+ 
+/* Run-time Target Specification.  */
+
+#define TARGET_VERSION fputs (" (ARM/NetBSD)", stderr);
+
+/* This is used in ASM_FILE_START */
+
+#define ARM_OS_NAME "NetBSD"
+
+/* Unsigned chars produces much better code than signed.  */
+
+#define DEFAULT_SIGNED_CHAR  0
+
+/* ARM600 default cpu */
+
+#define TARGET_DEFAULT 8
+
+/* Since we always use GAS as our assembler we support stabs */
+
+#define DBX_DEBUGGING_INFO 1
+
+/*#undef ASM_DECLARE_FUNCTION_NAME*/
+
+#include "arm32/arm32.h"
+
+/* Gets redefined in config/netbsd.h */
+
+#undef TARGET_MEM_FUNCTIONS
+
+#include <netbsd.h>
+
+/* Ok some nice defines for CPP
+   By default we define arm32 __arm32__ and __arm6__
+   However if we are compiling 26 bit code -m2 or -m3 then
+   we remove all these definitions.
+   The arm32 and __arm32__ defines indication that the compiler
+   is generating 32 bit address space code.
+   The __arm2__ __arm3__ and __arm6__ are obvious. */
+
+#undef CPP_PREDEFINES
+#define CPP_PREDEFINES "-Dunix -Darm32 -D__arm32__ -D__arm6__ -Driscbsd -D__NetBSD__ -Asystem(unix) -Asystem(NetBSD) -Acpu(arm) -Amachine(arm)"
+
+#undef CPP_SPEC
+#define CPP_SPEC "%{m2:-D__arm2__} %{m3:-D__arm3__} %{m2:-U__arm6__}	\
+	%{m3:-U__arm6__} %{m2:-U__arm32__} %{m3:-U__arm32__}		\
+	 %{m2:-Uarm32} %{m3:-Uarm32}					\
+	%{posix:-D_POSIX_SOURCE}"
+
+#undef SIZE_TYPE
+#define SIZE_TYPE "unsigned int"
+
+#undef PTRDIFF_TYPE
+#define PTRDIFF_TYPE "int"
+
+#undef WCHAR_TYPE
+#define WCHAR_TYPE "int"
+
+#undef WCHAR_UNSIGNED
+#define WCHAR_UNSIGNED 0
+
+#undef WCHAR_TYPE_SIZE
+#define WCHAR_TYPE_SIZE 32
+
+#define HANDLE_SYSV_PRAGMA
+
+
+/* We don't have any limit on the length as out debugger is GDB */
+
+#undef DBX_CONTIN_LENGTH
+
+/* NetBSD does its profiling differently to the Acorn compiler. We don't need
+   a word following mcount call and to skip if requires an assembly stub of
+   use of fomit-frame-pointer when compiling the profiling functions.
+   Since we break Acorn CC compatibility below a little more won't hurt */
+
+#undef FUNCTION_PROFILER
+#define FUNCTION_PROFILER(STREAM,LABELNO)  				    \
+{									    \
+    fprintf(STREAM, "\tmov\t%sip, %slr\n", REGISTER_PREFIX, REGISTER_PREFIX); \
+    fprintf(STREAM, "\tbl\tmcount\n");					    \
+}
+
+/* VERY BIG NOTE : Change of structure alignment for RiscBSD.
+   There are consequences you should be aware of */
+
+/* Normally GCC/arm uses a structure alignment of 32. This means that
+   structures are padded to a word boundry. However this causes
+   problems with bugged NetBSD kernel code (possible userland code
+   as well - I have not checked every binary).
+   The nature of this the bugged code is to rely on sizeof() returning
+   the correct size of various structures rounded to the nearest byte
+   (SCSI and ether code are two examples, the vm system is another)
+   This code starts to break when the structure alignment is 32 as sizeof()
+   will report a word rounded size.
+   By changing the structure alignment to 8. GCC will conform to what
+   is expected by NetBSD.
+
+   This has several side effects that should be considered.
+   1. Structures will only be aligned to the size of the largest member.
+      i.e. structures containing only bytes will be byte aligned.
+           structures containing shorts will be half word alinged.
+           structures containing ints will be word aligned.
+
+      This means structures should be padded to a word boundry if
+      alignment of 32 is require for byte structures etc.
+      
+   2. A potential performance penalty may exist if strings are no longer
+      word aligned. GCC will not be able to use word load/stores for copy
+      short strings.
+      
+   This modification is not encouraged but with the present state of the
+   NetBSD source tree it is currently the only solution to meet the
+   requirements.
+*/
+
+#undef STRUCTURE_SIZE_BOUNDARY
+#define STRUCTURE_SIZE_BOUNDARY 8

gnu/usr.bin/gcc/arch/arm32/tconfig.h

@@ -0,0 +1 @@
+#include "arm32/xm-netbsd.h"

gnu/usr.bin/gcc/arch/arm32/tm.h

@@ -0,0 +1 @@
+#include "arm32/netbsd.h"

gnu/usr.bin/gcc/arch/arm32/xm-arm32.h

@@ -0,0 +1,74 @@
+/* Configuration for GNU C-compiler for Acorn RISC Machine.
+   Copyright (C) 1991, 1993 Free Software Foundation, Inc.
+   Contributed by Pieter `Tiggr' Schoenmakers (rcpieter@win.tue.nl)
+              and Martin Simmons (@harleqn.co.uk).
+   More major hacks by Richard Earnshaw (rwe11@cl.cam.ac.uk)
+
+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.  */
+
+/* #defines that need visibility everywhere.  */
+#define FALSE 0
+#define TRUE 1
+
+/* This describes the machine the compiler is hosted on.  */
+#define HOST_BITS_PER_CHAR 8
+#define HOST_BITS_PER_SHORT 16
+#define HOST_BITS_PER_INT 32
+#define HOST_BITS_PER_LONG 32
+
+/* A code distinguishing the floating point format of the host
+   machine.  There are three defined values: IEEE_FLOAT_FORMAT,
+   VAX_FLOAT_FORMAT, and UNKNOWN_FLOAT_FORMAT.  */
+
+#define HOST_FLOAT_FORMAT IEEE_FLOAT_FORMAT
+
+#define HOST_FLOAT_WORDS_BIG_ENDIAN 1
+
+/* If not compiled with GNU C, use C alloca.  */
+#ifndef __GNUC__
+#define USE_C_ALLOCA
+#endif
+
+/* Define this if the library function putenv is available on your machine */
+#define HAVE_PUTENV 1
+
+/* Define this if the library function vprintf is available on your machine */
+#define HAVE_VPRINTF 1
+
+/* Define this to be 1 if you know the host compiler supports prototypes, even
+   if it doesn't define __STDC__, or define it to be 0 if you do not want any
+   prototypes when compiling GNU CC. */
+#define USE_PROTOTYPES 1
+
+/* target machine dependencies.
+   tm.h is a symbolic link to the actual target specific file.  */
+#include "tm.h"
+
+/* Arguments to use with `exit'.  */
+#define SUCCESS_EXIT_CODE 0
+#define FATAL_EXIT_CODE 33
+
+/* If we have defined POSIX, but are compiling in the BSD environment, then
+   we need to define getcwd in terms of getwd.  */
+#if defined (POSIX) && defined (_BSD_C)
+#define HAVE_GETWD 1
+#endif
+
+/* EOF xm-arm32.h */
+
+