1 /* Definitions for Intel 386 running Linux-based GNU systems with ELF format.
2 Copyright (C) 1994, 1995, 1996, 1997, 1998, 2000
3 Free Software Foundation, Inc.
4 Contributed by Eric Youngdale.
5 Modified for stabs-in-ELF by H.J. Lu.
7 This file is part of GNU CC.
9 GNU CC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 2, or (at your option)
14 GNU CC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GNU CC; see the file COPYING. If not, write to
21 the Free Software Foundation, 59 Temple Place - Suite 330,
22 Boston, MA 02111-1307, USA. */
24 #define LINUX_DEFAULT_ELF
26 /* A lie, I guess, but the general idea behind linux/ELF is that we are
27 supposed to be outputting something that will assemble under SVr4.
28 This gets us pretty close. */
29 #include <i386/i386.h> /* Base i386 target machine definitions */
30 #include <i386/att.h> /* Use the i386 AT&T assembler syntax */
31 #include <linux.h> /* some common stuff */
34 #define TARGET_VERSION fprintf (stderr, " (i386 RTEMS with ELF)");
36 /* The svr4 ABI for the i386 says that records and unions are returned
38 #undef DEFAULT_PCC_STRUCT_RETURN
39 #define DEFAULT_PCC_STRUCT_RETURN 1
41 #undef DBX_REGISTER_NUMBER
42 #define DBX_REGISTER_NUMBER(n) svr4_dbx_register_map[n]
44 /* Output assembler code to FILE to increment profiler label # LABELNO
45 for profiling a function entry. */
47 #undef FUNCTION_PROFILER
48 #define FUNCTION_PROFILER(FILE, LABELNO) \
52 fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n", \
53 LPREFIX, (LABELNO)); \
54 fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n"); \
58 fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO)); \
59 fprintf (FILE, "\tcall mcount\n"); \
64 #define SIZE_TYPE "unsigned int"
67 #define PTRDIFF_TYPE "int"
70 #define WCHAR_TYPE "long int"
72 #undef WCHAR_TYPE_SIZE
73 #define WCHAR_TYPE_SIZE BITS_PER_WORD
76 #define CPP_PREDEFINES "-Drtems -D__rtems__ -Asystem=rtems"
78 /* A C statement (sans semicolon) to output to the stdio stream
79 FILE the assembler definition of uninitialized global DECL named
80 NAME whose size is SIZE bytes and alignment is ALIGN bytes.
81 Try to use asm_output_aligned_bss to implement this macro. */
83 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
84 asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
87 #define STARTFILE_SPEC "crt0.o%s crti.o%s crtbegin.o%s"
90 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
92 /* Get machine-independent configuration parameters for RTEMS. */
95 /* end of i386/rtemself.h */