Initial revision

From-SVN: r11756

2 files changed, 235 insertions, 0 deletions

diff --git a/gcc/config/arm/coff.h b/gcc/config/arm/coff.h
new file mode 100644
index 0000000..3af43e1
--- /dev/null
+++ b/gcc/config/arm/coff.h
@@ -0,0 +1,205 @@
+/* Definitions of target machine for GNU compiler,
+   for ARM with COFF obj format.
+   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Contributed by Doug Evans (dje@cygnus.com).
+   
+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.  */
+
+#include "arm/semi.h"
+
+/* Run-time Target Specification.  */
+#undef TARGET_VERSION
+#define TARGET_VERSION fputs (" (ARM/coff)", stderr)
+
+/* ??? Maybe use --with{enable?}-fpu or some such to make hardware floating
+   point the default.  NOT --nfp!  --with{enable?} is supposed to replace it
+   (right?), so let's stop using it.  */
+#undef TARGET_DEFAULT
+#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT + TARGET_CPU_DEFAULT)
+
+#if TARGET_CPU_DEFAULT & ARM_FLAG_BIG_END
+#define MULTILIB_DEFAULTS { "mbe", "mbig-endian" }
+#else
+#define MULTILIB_DEFAULTS { "mle", "mlittle-endian" }
+#endif
+
+/* ??? Does arm.h really need to set this to 32?  */
+#undef STRUCTURE_SIZE_BOUNDARY
+#define STRUCTURE_SIZE_BOUNDARY 8
+
+/* A C expression whose value is nonzero if IDENTIFIER with arguments ARGS
+   is a valid machine specific attribute for DECL.
+   The attributes in ATTRIBUTES have previously been assigned to DECL.  */
+extern int arm_valid_machine_decl_attribute ();
+#define VALID_MACHINE_DECL_ATTRIBUTE(DECL, ATTRIBUTES, IDENTIFIER, ARGS) \
+arm_valid_machine_decl_attribute (DECL, ATTRIBUTES, IDENTIFIER, ARGS)
+
+/* This is COFF, but prefer stabs.  */
+#define SDB_DEBUGGING_INFO
+
+#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
+
+#include "dbxcoff.h"
+
+#undef LOCAL_LABEL_PREFIX
+#define LOCAL_LABEL_PREFIX "."
+
+/* A C statement to output assembler commands which will identify the
+   object file as having been compiled with GNU CC (or another GNU
+   compiler).  */
+/* Define this to NULL so we don't get anything.
+   We have ASM_IDENTIFY_LANGUAGE.
+   Also, when using stabs, gcc2_compiled must be a stabs entry, not an
+   ordinary symbol, or gdb won't see it.  The stabs entry must be
+   before the N_SO in order for gdb to find it.  */
+#define ASM_IDENTIFY_GCC(STREAM)
+
+/* This outputs a lot of .req's to define alias for various registers.
+   Let's try to avoid this.  */
+#undef ASM_FILE_START
+#define ASM_FILE_START(STREAM) \
+do {								\
+  extern char *version_string;					\
+  fprintf (STREAM, "%s Generated by gcc %s for ARM/coff\n",	\
+	   ASM_COMMENT_START, version_string);			\
+} while (0)
+
+/* A C statement to output something to the assembler file to switch to section
+   NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
+   NULL_TREE.  Some target formats do not support arbitrary sections.  Do not
+   define this macro in such cases.  */
+#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME) \
+do {								\
+  if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL)		\
+    fprintf (STREAM, "\t.section %s,\"x\"\n", (NAME));		\
+  else if ((DECL) && TREE_READONLY (DECL))			\
+    fprintf (STREAM, "\t.section %s,\"\"\n", (NAME));		\
+  else								\
+    fprintf (STREAM, "\t.section %s,\"w\"\n", (NAME));		\
+} while (0)
+
+/* Support the ctors/dtors and other sections.  */
+
+#undef INIT_SECTION_ASM_OP
+
+/* Define this macro if jump tables (for `tablejump' insns) should be
+   output in the text section, along with the assembler instructions.
+   Otherwise, the readonly data section is used.  */
+#define JUMP_TABLES_IN_TEXT_SECTION
+
+#undef READONLY_DATA_SECTION
+#define READONLY_DATA_SECTION	rdata_section
+#undef RDATA_SECTION_ASM_OP
+#define RDATA_SECTION_ASM_OP	"\t.section .rdata"
+
+#undef CTORS_SECTION_ASM_OP
+#define CTORS_SECTION_ASM_OP	"\t.section .ctors,\"x\""
+#undef DTORS_SECTION_ASM_OP
+#define DTORS_SECTION_ASM_OP	"\t.section .dtors,\"x\""
+
+/* A list of other sections which the compiler might be "in" at any
+   given time.  */
+
+#undef EXTRA_SECTIONS
+#define EXTRA_SECTIONS SUBTARGET_EXTRA_SECTIONS in_rdata, in_ctors, in_dtors
+
+#define SUBTARGET_EXTRA_SECTIONS
+
+/* A list of extra section function definitions.  */
+
+#undef EXTRA_SECTION_FUNCTIONS
+#define EXTRA_SECTION_FUNCTIONS \
+  RDATA_SECTION_FUNCTION	\
+  CTORS_SECTION_FUNCTION	\
+  DTORS_SECTION_FUNCTION	\
+  SUBTARGET_EXTRA_SECTION_FUNCTIONS
+
+#define SUBTARGET_EXTRA_SECTION_FUNCTIONS
+
+#define RDATA_SECTION_FUNCTION \
+void									\
+rdata_section ()							\
+{									\
+  if (in_section != in_rdata)						\
+    {									\
+      fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP);		\
+      in_section = in_rdata;						\
+    }									\
+}
+
+#define CTORS_SECTION_FUNCTION \
+void									\
+ctors_section ()							\
+{									\
+  if (in_section != in_ctors)						\
+    {									\
+      fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP);		\
+      in_section = in_ctors;						\
+    }									\
+}
+
+#define DTORS_SECTION_FUNCTION \
+void									\
+dtors_section ()							\
+{									\
+  if (in_section != in_dtors)						\
+    {									\
+      fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP);		\
+      in_section = in_dtors;						\
+    }									\
+}
+
+/* Support the ctors/dtors sections for g++.  */
+
+#define INT_ASM_OP ".word"
+
+/* A C statement (sans semicolon) to output an element in the table of
+   global constructors.  */
+#undef ASM_OUTPUT_CONSTRUCTOR
+#define ASM_OUTPUT_CONSTRUCTOR(STREAM,NAME) \
+do {						\
+  ctors_section ();				\
+  fprintf (STREAM, "\t%s\t ", INT_ASM_OP);	\
+  assemble_name (STREAM, NAME);			\
+  fprintf (STREAM, "\n");			\
+} while (0)
+
+/* A C statement (sans semicolon) to output an element in the table of
+   global destructors.  */
+#undef ASM_OUTPUT_DESTRUCTOR
+#define ASM_OUTPUT_DESTRUCTOR(STREAM,NAME) \
+do {						\
+  dtors_section ();                   		\
+  fprintf (STREAM, "\t%s\t ", INT_ASM_OP);	\
+  assemble_name (STREAM, NAME);              	\
+  fprintf (STREAM, "\n");			\
+} while (0)
+
+/* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script.  */
+#define CTOR_LISTS_DEFINED_EXTERNALLY
+
+#undef DO_GLOBAL_CTORS_BODY
+#undef DO_GLOBAL_DTORS_BODY
+
+/* The ARM development system has atexit and doesn't have _exit,
+   so define this for now.  */
+#define HAVE_ATEXIT
+
+/* The ARM development system defines __main.  */
+#define NAME__MAIN "__gccmain"
+#define SYMBOL__MAIN __gccmain
diff --git a/gcc/config/arm/t-bare b/gcc/config/arm/t-bare
new file mode 100644
index 0000000..4f1d84a
--- /dev/null
+++ b/gcc/config/arm/t-bare
@@ -0,0 +1,30 @@
+CROSS_LIBGCC1 = libgcc1-asm.a
+LIB1ASMSRC = arm/lib1funcs.asm
+LIB1ASMFUNCS = _udivsi3 _divsi3 _umodsi3 _modsi3 _dvmd_tls
+
+# These are really part of libgcc1, but this will cause them to be
+# built correctly, so...
+
+LIB2FUNCS_EXTRA = fp-bit.c dp-bit.c
+
+fp-bit.c: $(srcdir)/config/fp-bit.c
+	echo '#define FLOAT' > fp-bit.c
+	echo '#ifndef __ARMEB__' >> fp-bit.c
+	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> fp-bit.c
+	echo '#endif' >> fp-bit.c
+	cat $(srcdir)/config/fp-bit.c >> fp-bit.c
+
+dp-bit.c: $(srcdir)/config/fp-bit.c
+	echo '#ifndef __ARMEB__' > dp-bit.c
+	echo '#define FLOAT_BIT_ORDER_MISMATCH' >> dp-bit.c
+	echo '#define FLOAT_WORD_ORDER_MISMATCH' >> dp-bit.c
+	echo '#endif' >> dp-bit.c
+	cat $(srcdir)/config/fp-bit.c >> dp-bit.c
+
+# Avoid building a duplicate set of libraries for the default endian-ness.
+MULTILIB_OPTIONS = mle/mbe mhard-float
+MULTILIB_DIRNAMES = le be fpu
+MULTILIB_MATCHES = mbe=mbig-endian mle=mlittle-endian
+
+LIBGCC = stmp-multilib
+INSTALL_LIBGCC = install-multilib