linux.h revision 1.1.1.1.4.2 
1/* Definitions for Renesas M32R running Linux-based GNU systems using ELF.
2   Copyright (C) 2003, 2004, 2006, 2007 Free Software Foundation, Inc.
3
4   This file is part of GCC.
5
6   GCC is free software; you can redistribute it and/or modify it
7   under the terms of the GNU General Public License as published
8   by the Free Software Foundation; either version 3, or (at your
9   option) any later version.
10
11   GCC is distributed in the hope that it will be useful, but WITHOUT
12   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
13   or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
14   License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with GCC; see the file COPYING3.  If not see
18   <http://www.gnu.org/licenses/>.  */
19
20#define LINUX_DEFAULT_ELF
21
22/* A lie, I guess, but the general idea behind linux/ELF is that we are
23   supposed to be outputting something that will assemble under SVr4.
24   This gets us pretty close.  */
25
26#define HANDLE_SYSV_PRAGMA
27
28#undef  HANDLE_PRAGMA_PACK
29
30#undef  TARGET_VERSION
31#define TARGET_VERSION fprintf (stderr, " (M32R GNU/Linux with ELF)");
32
33#undef  SIZE_TYPE
34#define SIZE_TYPE "unsigned int"
35
36#undef  PTRDIFF_TYPE
37#define PTRDIFF_TYPE "int"
38
39#undef  WCHAR_TYPE
40#define WCHAR_TYPE "long int"
41
42#undef  WCHAR_TYPE_SIZE
43#define WCHAR_TYPE_SIZE BITS_PER_WORD
44
45/* Provide a LINK_SPEC appropriate for Linux.  Here we provide support
46   for the special GCC options -static and -shared, which allow us to
47   link things in one of these three modes by applying the appropriate
48   combinations of options at link-time. We like to support here for
49   as many of the other GNU linker options as possible. But I don't
50   have the time to search for those flags. I am sure how to add
51   support for -soname shared_object_name. H.J.
52
53   I took out %{v:%{!V:-V}}. It is too much :-(. They can use
54   -Wl,-V.
55
56   When the -shared link option is used a final link is not being
57   done.  */
58
59/* If ELF is the default format, we should not use /lib/elf.  */
60
61#define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
62
63#undef	LINK_SPEC
64#if TARGET_LITTLE_ENDIAN
65#define LINK_SPEC "%(link_cpu) -m m32rlelf_linux %{shared:-shared} \
66  %{!shared: \
67    %{!ibcs: \
68      %{!static: \
69	%{rdynamic:-export-dynamic} \
70	%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
71	%{static:-static}}}"
72#else
73#define LINK_SPEC "%(link_cpu) -m m32relf_linux %{shared:-shared} \
74  %{!shared: \
75    %{!ibcs: \
76      %{!static: \
77	%{rdynamic:-export-dynamic} \
78	%{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
79	%{static:-static}}}"
80#endif
81
82#undef	LIB_SPEC
83#define LIB_SPEC \
84  "%{pthread:-lpthread} \
85   %{shared: -lc} \
86   %{!shared: \
87       %{mieee-fp:-lieee} \
88       %{profile:-lc_p} %{!profile: -lc}}"
89
90#undef  STARTFILE_SPEC
91#if defined HAVE_LD_PIE
92#define STARTFILE_SPEC \
93  "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
94   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
95#else
96#define STARTFILE_SPEC \
97  "%{!shared: \
98     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
99   crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
100#endif
101
102#undef  ENDFILE_SPEC
103#define ENDFILE_SPEC \
104  "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
105
106#undef  SUBTARGET_CPP_SPEC
107#define SUBTARGET_CPP_SPEC "\
108   %{posix:-D_POSIX_SOURCE} \
109   %{pthread:-D_REENTRANT -D_PTHREADS} \
110"
111
112#define TARGET_OS_CPP_BUILTINS() LINUX_TARGET_OS_CPP_BUILTINS()
113
114#define TARGET_ASM_FILE_END file_end_indicate_exec_stack
115