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 Free Software Foundation, Inc.
4 Contributed by Eddie C. Dost (ecd@skynet.be)
6 This file is part of GCC.
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)
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.
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/>. */
22 #define TARGET_OS_CPP_BUILTINS() \
25 LINUX_TARGET_OS_CPP_BUILTINS(); \
26 if (TARGET_LONG_DOUBLE_128) \
27 builtin_define ("__LONG_DOUBLE_128__"); \
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'. */
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}"
42 /* This is for -profile to use -lc_p instead of -lc. */
44 #define CC1_SPEC "%{profile:-p} \
46 %{mcypress:-mcpu=cypress} \
47 %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
48 %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
52 #define TARGET_VERSION fprintf (stderr, " (sparc GNU/Linux with ELF)");
55 #define SIZE_TYPE "unsigned int"
58 #define PTRDIFF_TYPE "int"
61 #define WCHAR_TYPE "int"
63 #undef WCHAR_TYPE_SIZE
64 #define WCHAR_TYPE_SIZE 32
66 #undef CPP_SUBTARGET_SPEC
67 #define CPP_SUBTARGET_SPEC \
68 "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
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.
78 I took out %{v:%{!V:-V}}. It is too much :-(. They can use
81 When the -shared link option is used a final link is not being
84 /* If ELF is the default format, we should not use /lib/elf. */
86 #define GLIBC_DYNAMIC_LINKER "/lib/ld-linux.so.2"
89 #define LINK_SPEC "-m elf32_sparc -Y P,/usr/lib %{shared:-shared} \
90 %{!mno-relax:%{!r:-relax}} \
94 %{rdynamic:-export-dynamic} \
95 %{!dynamic-linker:-dynamic-linker " LINUX_DYNAMIC_LINKER "}} \
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. */
102 "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
103 %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)"
105 /* Same as sparc.h */
106 #undef DBX_REGISTER_NUMBER
107 #define DBX_REGISTER_NUMBER(REGNO) (REGNO)
109 #undef ASM_OUTPUT_ALIGNED_LOCAL
110 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
112 fputs ("\t.local\t", (FILE)); \
113 assemble_name ((FILE), (NAME)); \
114 putc ('\n', (FILE)); \
115 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \
119 #define COMMON_ASM_OP "\t.common\t"
121 #undef LOCAL_LABEL_PREFIX
122 #define LOCAL_LABEL_PREFIX "."
124 /* This is how to store into the string LABEL
125 the symbol_ref name of an internal numbered label where
126 PREFIX is the class of label and NUM is the number within the class.
127 This is suitable for output with `assemble_name'. */
129 #undef ASM_GENERATE_INTERNAL_LABEL
130 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \
131 sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM))
134 /* Define for support of TFmode long double.
135 SPARC ABI says that long double is 4 words. */
136 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
138 /* Define this to set long double type size to use in libgcc2.c, which can
139 not depend on target_flags. */
140 #ifdef __LONG_DOUBLE_128__
141 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
143 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
146 #undef DITF_CONVERSION_LIBFUNCS
147 #define DITF_CONVERSION_LIBFUNCS 1
150 #undef TARGET_SUN_TLS
151 #undef TARGET_GNU_TLS
152 #define TARGET_SUN_TLS 0
153 #define TARGET_GNU_TLS 1
156 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */
157 #undef CTORS_SECTION_ASM_OP
158 #undef DTORS_SECTION_ASM_OP
160 #define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h"
162 /* Linux currently uses RMO in uniprocessor mode, which is equivalent to
163 TMO, and TMO in multiprocessor mode. But they reserve the right to
164 change their minds. */
165 #undef SPARC_RELAXED_ORDERING
166 #define SPARC_RELAXED_ORDERING true
168 #undef NEED_INDICATE_EXEC_STACK
169 #define NEED_INDICATE_EXEC_STACK 1
171 #ifdef TARGET_LIBC_PROVIDES_SSP
172 /* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */
173 #define TARGET_THREAD_SSP_OFFSET 0x14
176 /* Define if long doubles should be mangled as 'g'. */
177 #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING
179 /* We use glibc _mcount for profiling. */
180 #define NO_PROFILE_COUNTERS 1