1 /* Definitions of target machine for GCC. m68k/ColdFire based uClinux system
2 using ELF objects with special linker post-processing to produce FLAT
5 Copyright (C) 2003 Free Software Foundation, Inc.
7 This file is part of GCC.
9 GCC 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 GCC 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 GCC; see the file COPYING. If not, write to
21 the Free Software Foundation, 51 Franklin Street, Fifth Floor,
22 Boston, MA 02110-1301, USA. */
25 /* The old uClinux ABI used 80-byte "long double"s for ColdFire too. */
26 #undef LONG_DOUBLE_TYPE_SIZE
27 #define LONG_DOUBLE_TYPE_SIZE 80
28 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
29 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 80
31 /* Undo the definition of STARTFILE_SPEC from m68kelf.h so we'll
32 pick the default from gcc.c (just link crt0.o from multilib dir). */
35 /* Override the default LIB_SPEC from gcc.c. We don't currently support
36 profiling, or libg.a. */
39 %{mid-shared-library:-R libc.gdb%s -elf2flt -shared-lib-id 0} -lc \
42 /* we don't want a .eh_frame section. */
43 #define EH_FRAME_IN_DATA_SECTION
45 /* ??? Quick hack to get constructors working. Make this look more like a
46 COFF target, so the existing dejagnu/libgloss support works. A better
47 solution would be to make the necessary dejagnu and libgloss changes so
48 that we can use normal the ELF constructor mechanism. */
49 #undef INIT_SECTION_ASM_OP
50 #undef FINI_SECTION_ASM_OP
52 #define ENDFILE_SPEC ""
54 /* Bring in standard linux defines */
55 #undef TARGET_OS_CPP_BUILTINS
56 #define TARGET_OS_CPP_BUILTINS() \
59 builtin_define_std ("mc68000"); \
60 builtin_define ("__uClinux__"); \
61 builtin_define_std ("linux"); \
62 builtin_define_std ("unix"); \
63 builtin_define ("__gnu_linux__"); \
64 builtin_assert ("system=linux"); \
65 builtin_assert ("system=unix"); \
66 builtin_assert ("system=posix"); \
67 if (TARGET_ID_SHARED_LIBRARY) \
68 builtin_define ("__ID_SHARED_LIBRARY__"); \