gcc/config/sparc/netbsd-elf.h

   1 /* Definitions of target machine for GCC, for ELF on NetBSD/sparc
   2    and NetBSD/sparc64.
   3    Copyright (C) 2002, 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
   4    Contributed by Matthew Green (mrg@eterna.com.au).
   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       NETBSD_OS_CPP_BUILTINS_ELF();                     \
  26       if (TARGET_ARCH64)                                \
  27         {                                               \
  28           builtin_define ("__sparc64__");               \
  29           builtin_define ("__sparc_v9__");              \
  30           builtin_define ("__sparcv9");                 \
  31         }                                               \
  32       else                                              \
  33         builtin_define ("__sparc");                     \
  34       builtin_define ("__sparc__");                     \
  35     }                                                   \
  36   while (0)
  37
  38 /* Make sure these are undefined.  */
  39 #undef MD_EXEC_PREFIX
  40 #undef MD_STARTFILE_PREFIX
  41
  42 /* CPP defines used by all NetBSD targets.  */
  43 #undef CPP_SUBTARGET_SPEC
  44 #define CPP_SUBTARGET_SPEC "%(netbsd_cpp_spec)"
  45
  46 /* SIZE_TYPE and PTRDIFF_TYPE are wrong from sparc/sparc.h.  */
  47 #undef SIZE_TYPE
  48 #define SIZE_TYPE "long unsigned int"
  49
  50 #undef PTRDIFF_TYPE
  51 #define PTRDIFF_TYPE "long int"
  52
  53 /* This is the char to use for continuation (in case we need to turn
  54    continuation back on).  */
  55 #undef DBX_CONTIN_CHAR
  56 #define DBX_CONTIN_CHAR '?'
  57
  58 #undef  LOCAL_LABEL_PREFIX
  59 #define LOCAL_LABEL_PREFIX  "."
  60
  61 /* This is how to store into the string LABEL
  62    the symbol_ref name of an internal numbered label where
  63    PREFIX is the class of label and NUM is the number within the class.
  64    This is suitable for output with `assemble_name'.  */
  65
  66 #undef  ASM_GENERATE_INTERNAL_LABEL
  67 #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM)   \
  68   sprintf ((LABEL), "*.L%s%ld", (PREFIX), (long)(NUM))
  69
  70 #undef USER_LABEL_PREFIX
  71 #define USER_LABEL_PREFIX ""
  72
  73 #undef ASM_SPEC
  74 #define ASM_SPEC "%{fpic|fPIC|fpie|fPIE:-K PIC} %{V} %{v:%{!V:-V}} \
  75 %{mlittle-endian:-EL} \
  76 %(asm_cpu) %(asm_arch) %(asm_relax)"
  77
  78 #undef STDC_0_IN_SYSTEM_HEADERS
  79
  80 /* Attempt to enable execute permissions on the stack.  */
  81 #define ENABLE_EXECUTE_STACK NETBSD_ENABLE_EXECUTE_STACK
  82
  83 #undef TARGET_VERSION
  84 #define TARGET_VERSION fprintf (stderr, " (%s)", TARGET_NAME);
  85
  86 /* Below here exists the merged NetBSD/sparc & NetBSD/sparc64 compiler
  87    description, allowing one to build 32-bit or 64-bit applications
  88    on either.  We define the sparc & sparc64 versions of things,
  89    occasionally a neutral version (should be the same as "netbsd-elf.h")
  90    and then based on SPARC_BI_ARCH, DEFAULT_ARCH32_P, and TARGET_CPU_DEFAULT,
  91    we choose the correct version.  */
  92
  93 /* We use the default NetBSD ELF STARTFILE_SPEC and ENDFILE_SPEC
  94    definitions, even for the SPARC_BI_ARCH compiler, because NetBSD does
  95    not have a default place to find these libraries..  */
  96
  97 /* Name the port(s).  */
  98 #define TARGET_NAME64     "NetBSD/sparc64 ELF"
  99 #define TARGET_NAME32     "NetBSD/sparc ELF"
 100
 101 /* TARGET_CPU_DEFAULT is set in Makefile.in.  We test for 64-bit default
 102    platform here.  */
 103
 104 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 105  || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
 106 /* A 64 bit v9 compiler with stack-bias,
 107    in a Medium/Low code model environment.  */
 108
 109 #undef TARGET_DEFAULT
 110 #define TARGET_DEFAULT \
 111   (MASK_V9 + MASK_PTR64 + MASK_64BIT /* + MASK_HARD_QUAD */ \
 112    + MASK_STACK_BIAS + MASK_APP_REGS + MASK_FPU + MASK_LONG_DOUBLE_128)
 113
 114 #undef SPARC_DEFAULT_CMODEL
 115 #define SPARC_DEFAULT_CMODEL CM_MEDANY
 116
 117 #endif
 118
 119 /* CC1_SPEC for NetBSD/sparc.  */
 120 #define CC1_SPEC32 \
 121  "%{sun4:} %{target:} \
 122   %{mcypress:-mcpu=cypress} \
 123   %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
 124   %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
 125   %{m32:%{m64:%emay not use both -m32 and -m64}} \
 126   %{m64: \
 127     -mptr64 -mstack-bias -mno-v8plus -mlong-double-128 \
 128     %{!mcpu*: \
 129       %{!mcypress: \
 130         %{!msparclite: \
 131           %{!mf930: \
 132             %{!mf934: \
 133               %{!mv8*: \
 134                 %{!msupersparc:-mcpu=ultrasparc}}}}}}} \
 135     %{!mno-vis:%{!mcpu=v9:-mvis}} \
 136     %{p:-mcmodel=medlow} \
 137     %{pg:-mcmodel=medlow}}"
 138
 139 #define CC1_SPEC64 \
 140  "%{sun4:} %{target:} \
 141   %{mcypress:-mcpu=cypress} \
 142   %{msparclite:-mcpu=sparclite} %{mf930:-mcpu=f930} %{mf934:-mcpu=f934} \
 143   %{mv8:-mcpu=v8} %{msupersparc:-mcpu=supersparc} \
 144   %{m32:%{m64:%emay not use both -m32 and -m64}} \
 145   %{m32: \
 146     -mptr32 -mno-stack-bias \
 147     %{!mlong-double-128:-mlong-double-64} \
 148     %{!mcpu*: \
 149       %{!mcypress: \
 150         %{!msparclite: \
 151           %{!mf930: \
 152             %{!mf934: \
 153               %{!mv8*: \
 154                 %{!msupersparc:-mcpu=cypress}}}}}}}} \
 155   %{!m32: \
 156     %{p:-mcmodel=medlow} \
 157     %{pg:-mcmodel=medlow}}"
 158
 159 /* Make sure we use the right output format.  Pick a default and then
 160    make sure -m32/-m64 switch to the right one.  */
 161
 162 #define LINK_ARCH32_SPEC "-m elf32_sparc"
 163
 164 #define LINK_ARCH64_SPEC "-m elf64_sparc"
 165
 166 #define LINK_ARCH_SPEC \
 167  "%{m32:%(link_arch32)} \
 168   %{m64:%(link_arch64)} \
 169   %{!m32:%{!m64:%(link_arch_default)}}"
 170
 171 #undef LINK_SPEC
 172 #define LINK_SPEC \
 173  "%(link_arch) \
 174   %{!mno-relax:%{!r:-relax}} \
 175   %(netbsd_link_spec)"
 176
 177 #define NETBSD_ENTRY_POINT "__start"
 178
 179 #if DEFAULT_ARCH32_P
 180 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH32_SPEC
 181 #else
 182 #define LINK_ARCH_DEFAULT_SPEC LINK_ARCH64_SPEC
 183 #endif
 184
 185 /* What extra spec entries do we need?  */
 186 #undef SUBTARGET_EXTRA_SPECS
 187 #define SUBTARGET_EXTRA_SPECS \
 188   { "link_arch32",              LINK_ARCH32_SPEC }, \
 189   { "link_arch64",              LINK_ARCH64_SPEC }, \
 190   { "link_arch_default",        LINK_ARCH_DEFAULT_SPEC }, \
 191   { "link_arch",                LINK_ARCH_SPEC }, \
 192   { "netbsd_cpp_spec",          NETBSD_CPP_SPEC }, \
 193   { "netbsd_link_spec",         NETBSD_LINK_SPEC_ELF }, \
 194   { "netbsd_entry_point",       NETBSD_ENTRY_POINT },
 195
 196
 197 /* Build a compiler that supports -m32 and -m64?  */
 198
 199 #ifdef SPARC_BI_ARCH
 200
 201 #undef LONG_DOUBLE_TYPE_SIZE
 202 #define LONG_DOUBLE_TYPE_SIZE (TARGET_LONG_DOUBLE_128 ? 128 : 64)
 203
 204 #if defined(__arch64__) || defined(__LONG_DOUBLE_128__)
 205 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
 206 #else
 207 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
 208 #endif
 209
 210 #undef  CC1_SPEC
 211 #if DEFAULT_ARCH32_P
 212 #define CC1_SPEC CC1_SPEC32
 213 #else
 214 #define CC1_SPEC CC1_SPEC64
 215 #endif
 216
 217 #if DEFAULT_ARCH32_P
 218 #define MULTILIB_DEFAULTS { "m32" }
 219 #else
 220 #define MULTILIB_DEFAULTS { "m64" }
 221 #endif
 222
 223 /* Name the port.  */
 224 #undef TARGET_NAME
 225 #define TARGET_NAME     (DEFAULT_ARCH32_P ? TARGET_NAME32 : TARGET_NAME64)
 226
 227 #else   /* SPARC_BI_ARCH */
 228
 229 #if TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 230  || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc
 231
 232 #undef LONG_DOUBLE_TYPE_SIZE
 233 #define LONG_DOUBLE_TYPE_SIZE 128
 234
 235 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
 236 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 128
 237
 238 #undef  CC1_SPEC
 239 #define CC1_SPEC CC1_SPEC64
 240
 241 #undef TARGET_NAME
 242 #define TARGET_NAME     TARGET_NAME64
 243
 244 #else   /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 245         || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
 246
 247 /* A 32-bit only compiler.  NetBSD don't support 128 bit `long double'
 248    for 32-bit code, unlike Solaris.  */
 249
 250 #undef LONG_DOUBLE_TYPE_SIZE
 251 #define LONG_DOUBLE_TYPE_SIZE 64
 252
 253 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
 254 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
 255
 256 #undef  CC1_SPEC
 257 #define CC1_SPEC CC1_SPEC32
 258
 259 #undef TARGET_NAME
 260 #define TARGET_NAME     TARGET_NAME32
 261
 262 #endif  /* TARGET_CPU_DEFAULT == TARGET_CPU_v9 \
 263         || TARGET_CPU_DEFAULT == TARGET_CPU_ultrasparc */
 264
 265 #endif  /* SPARC_BI_ARCH */
 266
 267 /* We use GNU ld so undefine this so that attribute((init_priority)) works.  */
 268 #undef CTORS_SECTION_ASM_OP
 269 #undef DTORS_SECTION_ASM_OP