Mercurial > hg > CbC > CbC_gcc
comparison gcc/config/sparc/linux.h @ 0:a06113de4d67
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author | kent <kent@cr.ie.u-ryukyu.ac.jp> |
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date | Fri, 17 Jul 2009 14:47:48 +0900 |
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children | 77e2b8dfacca |
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1 /* Definitions for SPARC running Linux-based GNU systems with ELF. | |
2 Copyright (C) 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005, 2006, | |
3 2007, 2008, 2009 Free Software Foundation, Inc. | |
4 Contributed by Eddie C. Dost (ecd@skynet.be) | |
5 | |
6 This file is part of GCC. | |
7 | |
8 GCC is free software; you can redistribute it and/or modify | |
9 it under the terms of the GNU General Public License as published by | |
10 the Free Software Foundation; either version 3, or (at your option) | |
11 any later version. | |
12 | |
13 GCC is distributed in the hope that it will be useful, | |
14 but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 GNU General Public License for more details. | |
17 | |
18 You should have received a copy of the GNU General Public License | |
19 along with GCC; see the file COPYING3. If not see | |
20 <http://www.gnu.org/licenses/>. */ | |
21 | |
22 #define TARGET_OS_CPP_BUILTINS() \ | |
23 do \ | |
24 { \ | |
25 LINUX_TARGET_OS_CPP_BUILTINS(); \ | |
26 if (TARGET_LONG_DOUBLE_128) \ | |
27 builtin_define ("__LONG_DOUBLE_128__"); \ | |
28 } \ | |
29 while (0) | |
30 | |
31 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on | |
32 the GNU/Linux magical crtend.o file (see crtstuff.c) which | |
33 provides part of the support for getting C++ file-scope static | |
34 object constructed before entering `main', followed by a normal | |
35 GNU/Linux "finalizer" file, `crtn.o'. */ | |
36 | |
37 #undef ENDFILE_SPEC | |
38 #define ENDFILE_SPEC \ | |
39 "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\ | |
40 %{ffast-math|funsafe-math-optimizations:crtfastmath.o%s}" | |
41 | |
42 /* This is for -profile to use -lc_p instead of -lc. */ | |
43 #undef CC1_SPEC | |
44 #define CC1_SPEC "%{profile:-p} \ | |
45 %{sun4:} %{target:} \ | |
46 %{mcypress:-mcpu=cypress} \ | |
47 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \ | |
48 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \ | |
49 " | |
50 | |
51 #undef TARGET_VERSION | |
52 #define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)"); | |
53 | |
54 #undef SIZE_TYPE | |
55 #define SIZE_TYPE "unsigned int" | |
56 | |
57 #undef PTRDIFF_TYPE | |
58 #define PTRDIFF_TYPE "int" | |
59 | |
60 #undef WCHAR_TYPE | |
61 #define WCHAR_TYPE "int" | |
62 | |
63 #undef WCHAR_TYPE_SIZE | |
64 #define WCHAR_TYPE_SIZE 32 | |
65 | |
66 #undef CPP_SUBTARGET_SPEC | |
67 #define CPP_SUBTARGET_SPEC \ | |
68 "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}" | |
69 | |
70 /* Provide a LINK_SPEC appropriate for GNU/Linux. Here we provide support | |
71 for the special GCC options -static and -shared, which allow us to | |
72 link things in one of these three modes by applying the appropriate | |
73 combinations of options at link-time. We like to support here for | |
74 as many of the other GNU linker options as possible. But I don't | |
75 have the time to search for those flags. I am sure how to add | |
76 support for -soname shared_object_name. H.J. | |
77 | |
78 I took out %{v:%{!V:-V}}. It is too much :-(. They can use | |
79 -Wl,-V. | |
80 | |
81 When the -shared link option is used a final link is not being | |
82 done. */ | |
83 | |
84 /* If ELF is the default format, we should not use /lib/elf. */ | |
85 | |
86 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2" | |
87 | |
88 #undef LINK_SPEC | |
89 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \ | |
90 %{!mno-relax:%{!r:-relax}} \ | |
91 %{!shared: \ | |
92 %{!ibcs: \ | |
93 %{!static: \ | |
94 %{rdynamic:-export-dynamic} \ | |
95 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \ | |
96 %{static:-static}}}" | |
97 | |
98 /* The sun bundled assembler doesn't accept -Yd, (and neither does gas). | |
99 It's safe to pass -s always, even if -g is not used. */ | |
100 #undef ASM_SPEC | |
101 #define ASM_SPEC \ | |
102 "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \ | |
103 %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)" | |
104 | |
105 #undef ASM_OUTPUT_ALIGNED_LOCAL | |
106 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ | |
107 do { \ | |
108 fputs ("\t.local\t", (FILE)); \ | |
109 assemble_name ((FILE), (NAME)); \ | |
110 putc ('\n', (FILE)); \ | |
111 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ | |
112 } while (0) | |
113 | |
114 #undef COMMON_ASM_OP | |
115 #define COMMON_ASM_OP "\t.common\t" | |
116 | |
117 #undef LOCAL_LABEL_PREFIX | |
118 #define LOCAL_LABEL_PREFIX "." | |
119 | |
120 /* This is how to store into the string LABEL | |
121 the symbol_ref name of an internal numbered label where | |
122 PREFIX is the class of label and NUM is the number within the class. | |
123 This is suitable for output with `assemble_name'. */ | |
124 | |
125 #undef ASM_GENERATE_INTERNAL_LABEL | |
126 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ | |
127 sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM)) | |
128 | |
129 | |
130 /* Define for support of TFmode long double. | |
131 SPARC ABI says that long double is 4 words. */ | |
132 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64) | |
133 | |
134 /* Define this to set long double type size to use in libgcc2.c, which can | |
135 not depend on target_flags. */ | |
136 #ifdef __LONG_DOUBLE_128__ | |
137 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 | |
138 #else | |
139 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 | |
140 #endif | |
141 | |
142 #undef DITF_CONVERSION_LIBFUNCS | |
143 #define DITF_CONVERSION_LIBFUNCS 1 | |
144 | |
145 #ifdef HAVE_AS_TLS | |
146 #undef TARGET_SUN_TLS | |
147 #undef TARGET_GNU_TLS | |
148 #define TARGET_SUN_TLS 0 | |
149 #define TARGET_GNU_TLS 1 | |
150 #endif | |
151 | |
152 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */ | |
153 #undef CTORS_SECTION_ASM_OP | |
154 #undef DTORS_SECTION_ASM_OP | |
155 | |
156 #define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h" | |
157 | |
158 /* Linux currently uses RMO in uniprocessor mode, which is equivalent to | |
159 TMO, and TMO in multiprocessor mode. But they reserve the right to | |
160 change their minds. */ | |
161 #undef SPARC_RELAXED_ORDERING | |
162 #define SPARC_RELAXED_ORDERING true | |
163 | |
164 #undef NEED_INDICATE_EXEC_STACK | |
165 #define NEED_INDICATE_EXEC_STACK 1 | |
166 | |
167 #ifdef TARGET_LIBC_PROVIDES_SSP | |
168 /* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */ | |
169 #define TARGET_THREAD_SSP_OFFSET 0x14 | |
170 #endif | |
171 | |
172 /* Define if long doubles should be mangled as 'g'. */ | |
173 #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING | |
174 | |
175 /* We use glibc _mcount for profiling. */ | |
176 #undef NO_PROFILE_COUNTERS | |
177 #define NO_PROFILE_COUNTERS 1 |