-/* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
- Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000
- Free Software Foundation, Inc.
- Contributed by Eric Youngdale.
- Modified for stabs-in-ELF by H.J. Lu.
+/* Definitions for rtems targeting an ix86 using ELF.
+ Copyright (C) 1996, 1997, 2000, 2001, 2002 Free Software Foundation, Inc.
+ Contributed by Joel Sherrill (joel@OARcorp.com).
This file is part of GNU CC.
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
-#define LINUX_DEFAULT_ELF
-
-/* A lie, I guess, but the general idea behind linux/ELF is that we are
- supposed to be outputting something that will assemble under SVr4.
- This gets us pretty close. */
-#include <i386/i386.h> /* Base i386 target machine definitions */
-#include <i386/att.h> /* Use the i386 AT&T assembler syntax */
-#include <linux.h> /* some common stuff */
-
-#undef TARGET_VERSION
-#define TARGET_VERSION fprintf (stderr, " (i386 RTEMS with ELF)");
-
-/* The svr4 ABI for the i386 says that records and unions are returned
- in memory. */
-#undef DEFAULT_PCC_STRUCT_RETURN
-#define DEFAULT_PCC_STRUCT_RETURN 1
-
-/* This is how to output an element of a case-vector that is relative.
- This is only used for PIC code. See comments by the `casesi' insn in
- i386.md for an explanation of the expression this outputs. */
-#undef ASM_OUTPUT_ADDR_DIFF_ELT
-#define ASM_OUTPUT_ADDR_DIFF_ELT(FILE, BODY, VALUE, REL) \
- fprintf (FILE, "\t.long _GLOBAL_OFFSET_TABLE_+[.-%s%d]\n", LPREFIX, VALUE)
-
-/* Indicate that jump tables go in the text section. This is
- necessary when compiling PIC code. */
-#define JUMP_TABLES_IN_TEXT_SECTION (flag_pic)
-
-#undef DBX_REGISTER_NUMBER
-#define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
-
-/* Output assembler code to FILE to increment profiler label # LABELNO
- for profiling a function entry. */
-
-#undef FUNCTION_PROFILER
-#define FUNCTION_PROFILER(FILE, LABELNO) \
-{ \
- if (flag_pic) \
- { \
- fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n", \
- LPREFIX, (LABELNO)); \
- fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \
- } \
- else \
- { \
- fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO)); \
- fprintf (FILE, "\tcall mcount\n"); \
- } \
-}
-
-#undef SIZE_TYPE
-#define SIZE_TYPE "unsigned int"
-
-#undef PTRDIFF_TYPE
-#define PTRDIFF_TYPE "int"
-
-#undef WCHAR_TYPE
-#define WCHAR_TYPE "long int"
-
-#undef WCHAR_TYPE_SIZE
-#define WCHAR_TYPE_SIZE BITS_PER_WORD
-
-#undef CPP_PREDEFINES
-#define CPP_PREDEFINES "-Drtems -D__rtems__ -Asystem=rtems"
-
-/* Get perform_* macros to build libgcc.a. */
-#include "i386/perform.h"
-
-/* A C statement (sans semicolon) to output to the stdio stream
- FILE the assembler definition of uninitialized global DECL named
- NAME whose size is SIZE bytes and alignment is ALIGN bytes.
- Try to use asm_output_aligned_bss to implement this macro. */
-
-#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
- asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
-
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
-
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC "crtend.o%s crtn.o%s"
-
-/* Get machine-independent configuration parameters for RTEMS. */
-#include <rtems.h>
-
-/* end of i386/rtemself.h */
+/* Specify predefined symbols in preprocessor. */
+
+#define TARGET_OS_CPP_BUILTINS() \
+ do \
+ { \
+ builtin_define ("__rtems__"); \
+ builtin_define ("__USE_INIT_FINI__"); \
+ builtin_assert ("system=rtems"); \
+ if (!TARGET_80387) \
+ builtin_define ("_SOFT_FLOAT"); \
+ } \
+ while (0)
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