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} \ 103 %{v:%{!V:-V}} \ 104 %{!Qn:-Qy} \ 105 %{n} \ 106 %{T} \ 107 %{Ym,*} \ 108 %{Wa,*:%*} \ 109 -s \ 110 %{fpic|fPIC|fpie|fPIE:-K PIC} \ 111 %{!.c:%{findirect-dispatch:-K PIC}} \ 112 %(asm_cpu) %(asm_relax)" 113 114 #undef ASM_OUTPUT_ALIGNED_LOCAL 115 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ 116 do { \ 117 fputs ("\t.local\t", (FILE)); \ 118 assemble_name ((FILE), (NAME)); \ 119 putc ('\n', (FILE)); \ 120 ASM_OUTPUT_ALIGNED_COMMON (FILE, NAME, SIZE, ALIGN); \ 121 } while (0) 122 123 #undef COMMON_ASM_OP 124 #define COMMON_ASM_OP "\t.common\t" 125 126 #undef LOCAL_LABEL_PREFIX 127 #define LOCAL_LABEL_PREFIX "." 128 129 /* This is how to store into the string LABEL 130 the symbol_ref name of an internal numbered label where 131 PREFIX is the class of label and NUM is the number within the class. 132 This is suitable for output with `assemble_name'. */ 133 134 #undef ASM_GENERATE_INTERNAL_LABEL 135 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ 136 sprintf (LABEL, "*.L%s%ld", PREFIX, (long)(NUM)) 137 138 139 /* Define for support of TFmode long double. 140 SPARC ABI says that long double is 4 words. */ 141 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64) 142 143 /* Define this to set long double type size to use in libgcc2.c, which can 144 not depend on target_flags. */ 145 #ifdef __LONG_DOUBLE_128__ 146 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128 147 #else 148 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64 149 #endif 150 151 #undef DITF_CONVERSION_LIBFUNCS 152 #define DITF_CONVERSION_LIBFUNCS 1 153 154 #ifdef HAVE_AS_TLS 155 #undef TARGET_SUN_TLS 156 #undef TARGET_GNU_TLS 157 #define TARGET_SUN_TLS 0 158 #define TARGET_GNU_TLS 1 159 #endif 160 161 /* We use GNU ld so undefine this so that attribute((init_priority)) works. */ 162 #undef CTORS_SECTION_ASM_OP 163 #undef DTORS_SECTION_ASM_OP 164 165 #define MD_UNWIND_SUPPORT "config/sparc/linux-unwind.h" 166 167 /* Linux currently uses RMO in uniprocessor mode, which is equivalent to 168 TMO, and TMO in multiprocessor mode. But they reserve the right to 169 change their minds. */ 170 #undef SPARC_RELAXED_ORDERING 171 #define SPARC_RELAXED_ORDERING true 172 173 #undef NEED_INDICATE_EXEC_STACK 174 #define NEED_INDICATE_EXEC_STACK 1 175 176 #ifdef TARGET_LIBC_PROVIDES_SSP 177 /* sparc glibc provides __stack_chk_guard in [%g7 + 0x14]. */ 178 #define TARGET_THREAD_SSP_OFFSET 0x14 179 #endif 180 181 /* Define if long doubles should be mangled as 'g'. */ 182 #define TARGET_ALTERNATE_LONG_DOUBLE_MANGLING 183 184 /* We use glibc _mcount for profiling. */ 185 #undef NO_PROFILE_COUNTERS 186 #define NO_PROFILE_COUNTERS 1 187