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comparison gcc/config/m68k/uclinux.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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children b7f97abdc517
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-1:000000000000 0:a06113de4d67
1 /* Definitions of target machine for GCC. m68k/ColdFire based uClinux system
2 using ELF objects with special linker post-processing to produce FLAT
3 executables.
4
5 Copyright (C) 2003, 2007 Free Software Foundation, Inc.
6
7 This file is part of GCC.
8
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 3, or (at your option)
12 any later version.
13
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.
18
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
22
23 #undef TARGET_VERSION
24 #define TARGET_VERSION fprintf (stderr, " (68k uClinux)");
25
26 #undef STARTFILE_SPEC
27 #define STARTFILE_SPEC \
28 "%{mshared-library-id=0|!mshared-library-id=*: crt1.o%s ;: Scrt1.o%s} \
29 crti.o%s crtbegin.o%s"
30
31 #undef ENDFILE_SPEC
32 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
33
34 /* Override the default LIB_SPEC from gcc.c. We don't currently support
35 profiling, or libg.a. */
36 #undef LIB_SPEC
37 #define LIB_SPEC \
38 "%{mid-shared-library:%{!static-libc:-R libc.gdb%s}} -lc"
39
40 /* Default to using -elf2flt with no options. */
41 #undef LINK_SPEC
42 #define LINK_SPEC \
43 "%{!elf2flt*:-elf2flt} \
44 %{mid-shared-library: \
45 %{mshared-library-id=*:-shared-lib-id %*;:-shared-lib-id 0}}"
46
47 #undef TARGET_OS_CPP_BUILTINS
48 #define TARGET_OS_CPP_BUILTINS() \
49 do \
50 { \
51 LINUX_TARGET_OS_CPP_BUILTINS (); \
52 builtin_define ("__uClinux__"); \
53 if (TARGET_ID_SHARED_LIBRARY) \
54 { \
55 builtin_define ("__ID_SHARED_LIBRARY__"); \
56 /* Shared libraries and executables do not share \
57 typeinfo names. */ \
58 builtin_define ("__GXX_MERGED_TYPEINFO_NAMES=0"); \
59 builtin_define ("__GXX_TYPEINFO_EQUALITY_INLINE=0"); \
60 } \
61 } \
62 while (0)
63
64 /* -msep-data is the default PIC mode on this target. */
65 #define DRIVER_SELF_SPECS \
66 "%{fpie|fPIE|fpic|fPIC:%{!msep-data:%{!mid-shared-library: -msep-data}}}"
67
68 /* The uclinux binary format relies on relocations against a segment being
69 within that segment. Conservatively apply this rule to individual
70 sections. */
71 #undef M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P
72 #define M68K_OFFSETS_MUST_BE_WITHIN_SECTIONS_P 1