gcc/target-def.h

   1 /* Default initializers for a generic GCC target.
   2    Copyright (C) 2001, 2002, 2003, 2004 Free Software Foundation, Inc.
   3
   4 This program is free software; you can redistribute it and/or modify it
   5 under the terms of the GNU General Public License as published by the
   6 Free Software Foundation; either version 2, or (at your option) any
   7 later version.
   8
   9 This program is distributed in the hope that it will be useful,
  10 but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 GNU General Public License for more details.
  13
  14 You should have received a copy of the GNU General Public License
  15 along with this program; if not, write to the Free Software
  16 Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  17
  18  In other words, you are welcome to use, share and improve this program.
  19  You are forbidden to forbid anyone else to use, share and improve
  20  what you give them.   Help stamp out software-hoarding!  */
  21
  22 /* See target.h for a description of what this file contains and how to
  23    use it.
  24
  25    We want to have non-NULL default definitions of all hook functions,
  26    even if they do nothing.  */
  27
  28 /* Note that if one of these macros must be defined in an OS .h file
  29    rather than the .c file, then we need to wrap the default
  30    definition in a #ifndef, since files include tm.h before this one.  */
  31
  32 /* Assembler output.  */
  33 #define TARGET_ASM_OPEN_PAREN "("
  34 #define TARGET_ASM_CLOSE_PAREN ")"
  35 #define TARGET_ASM_BYTE_OP "\t.byte\t"
  36
  37 #define TARGET_ASM_ALIGNED_HI_OP "\t.short\t"
  38 #define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
  39 #define TARGET_ASM_ALIGNED_DI_OP NULL
  40 #define TARGET_ASM_ALIGNED_TI_OP NULL
  41
  42 /* GAS and SYSV4 assemblers accept these.  */
  43 #if defined (OBJECT_FORMAT_ELF)
  44 #define TARGET_ASM_UNALIGNED_HI_OP "\t.2byte\t"
  45 #define TARGET_ASM_UNALIGNED_SI_OP "\t.4byte\t"
  46 #define TARGET_ASM_UNALIGNED_DI_OP "\t.8byte\t"
  47 #define TARGET_ASM_UNALIGNED_TI_OP NULL
  48 #else
  49 #define TARGET_ASM_UNALIGNED_HI_OP NULL
  50 #define TARGET_ASM_UNALIGNED_SI_OP NULL
  51 #define TARGET_ASM_UNALIGNED_DI_OP NULL
  52 #define TARGET_ASM_UNALIGNED_TI_OP NULL
  53 #endif /* OBJECT_FORMAT_ELF */
  54
  55 #define TARGET_ASM_INTEGER default_assemble_integer
  56
  57 #ifndef TARGET_ASM_GLOBALIZE_LABEL
  58 #define TARGET_ASM_GLOBALIZE_LABEL default_globalize_label
  59 #endif
  60
  61 #ifndef TARGET_ASM_EMIT_UNWIND_LABEL
  62 #define TARGET_ASM_EMIT_UNWIND_LABEL default_emit_unwind_label
  63 #endif
  64
  65 #ifndef TARGET_ASM_INTERNAL_LABEL
  66 #define TARGET_ASM_INTERNAL_LABEL default_internal_label
  67 #endif
  68
  69 #ifndef TARGET_ASM_ASSEMBLE_VISIBILITY
  70 #define TARGET_ASM_ASSEMBLE_VISIBILITY default_assemble_visibility
  71 #endif
  72
  73 #define TARGET_ASM_FUNCTION_PROLOGUE default_function_pro_epilogue
  74 #define TARGET_ASM_FUNCTION_EPILOGUE default_function_pro_epilogue
  75 #define TARGET_ASM_FUNCTION_END_PROLOGUE no_asm_to_stream
  76 #define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE no_asm_to_stream
  77
  78 #ifndef TARGET_ASM_SELECT_SECTION
  79 #define TARGET_ASM_SELECT_SECTION default_select_section
  80 #endif
  81
  82 #ifndef TARGET_ASM_UNIQUE_SECTION
  83 #define TARGET_ASM_UNIQUE_SECTION default_unique_section
  84 #endif
  85
  86 #ifndef TARGET_ASM_SELECT_RTX_SECTION
  87 #define TARGET_ASM_SELECT_RTX_SECTION default_select_rtx_section
  88 #endif
  89
  90 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
  91 # ifdef CTORS_SECTION_ASM_OP
  92 #  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
  93 # else
  94 #  ifdef TARGET_ASM_NAMED_SECTION
  95 #   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
  96 #  else
  97 #   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
  98 #  endif
  99 # endif
 100 #endif
 101
 102 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
 103 # ifdef DTORS_SECTION_ASM_OP
 104 #  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
 105 # else
 106 #  ifdef TARGET_ASM_NAMED_SECTION
 107 #   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
 108 #  else
 109 #   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
 110 #  endif
 111 # endif
 112 #endif
 113
 114 #define TARGET_ASM_OUTPUT_MI_THUNK NULL
 115 #define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_tree_hwi_hwi_tree_false
 116
 117 #if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
 118 #define TARGET_HAVE_CTORS_DTORS true
 119 #else
 120 #define TARGET_HAVE_CTORS_DTORS false
 121 #define TARGET_ASM_CONSTRUCTOR NULL
 122 #define TARGET_ASM_DESTRUCTOR NULL
 123 #endif
 124
 125 #ifdef TARGET_ASM_NAMED_SECTION
 126 #define TARGET_HAVE_NAMED_SECTIONS true
 127 #else
 128 #define TARGET_ASM_NAMED_SECTION default_no_named_section
 129 #define TARGET_HAVE_NAMED_SECTIONS false
 130 #endif
 131
 132 #ifndef TARGET_HAVE_TLS
 133 #define TARGET_HAVE_TLS false
 134 #endif
 135
 136 #ifndef TARGET_HAVE_SRODATA_SECTION
 137 #define TARGET_HAVE_SRODATA_SECTION false
 138 #endif
 139
 140 #ifndef TARGET_TERMINATE_DW2_EH_FRAME_INFO
 141 #ifdef EH_FRAME_SECTION_NAME
 142 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 143 #else
 144 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO true
 145 #endif
 146 #endif
 147
 148 #define TARGET_DWARF_REGISTER_SPAN hook_rtx_rtx_null
 149
 150 #ifndef TARGET_ASM_EXCEPTION_SECTION
 151 #define TARGET_ASM_EXCEPTION_SECTION default_exception_section
 152 #endif
 153
 154 #ifndef TARGET_ASM_EH_FRAME_SECTION
 155 #define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
 156 #endif
 157
 158 #ifndef TARGET_ASM_FILE_START
 159 #define TARGET_ASM_FILE_START default_file_start
 160 #endif
 161
 162 #ifndef TARGET_ASM_FILE_END
 163 #define TARGET_ASM_FILE_END hook_void_void
 164 #endif
 165
 166 #ifndef TARGET_ASM_FILE_START_APP_OFF
 167 #define TARGET_ASM_FILE_START_APP_OFF false
 168 #endif
 169
 170 #ifndef TARGET_ASM_FILE_START_FILE_DIRECTIVE
 171 #define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
 172 #endif
 173
 174 #ifndef TARGET_ASM_EXTERNAL_LIBCALL
 175 #define TARGET_ASM_EXTERNAL_LIBCALL default_external_libcall
 176 #endif
 177
 178 #define TARGET_ASM_ALIGNED_INT_OP                               \
 179                        {TARGET_ASM_ALIGNED_HI_OP,               \
 180                         TARGET_ASM_ALIGNED_SI_OP,               \
 181                         TARGET_ASM_ALIGNED_DI_OP,               \
 182                         TARGET_ASM_ALIGNED_TI_OP}
 183
 184 #define TARGET_ASM_UNALIGNED_INT_OP                             \
 185                        {TARGET_ASM_UNALIGNED_HI_OP,             \
 186                         TARGET_ASM_UNALIGNED_SI_OP,             \
 187                         TARGET_ASM_UNALIGNED_DI_OP,             \
 188                         TARGET_ASM_UNALIGNED_TI_OP}
 189
 190 #define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,                  \
 191                         TARGET_ASM_CLOSE_PAREN,                 \
 192                         TARGET_ASM_BYTE_OP,                     \
 193                         TARGET_ASM_ALIGNED_INT_OP,              \
 194                         TARGET_ASM_UNALIGNED_INT_OP,            \
 195                         TARGET_ASM_INTEGER,                     \
 196                         TARGET_ASM_GLOBALIZE_LABEL,             \
 197                         TARGET_ASM_EMIT_UNWIND_LABEL,           \
 198                         TARGET_ASM_INTERNAL_LABEL,              \
 199                         TARGET_ASM_ASSEMBLE_VISIBILITY,         \
 200                         TARGET_ASM_FUNCTION_PROLOGUE,           \
 201                         TARGET_ASM_FUNCTION_END_PROLOGUE,       \
 202                         TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,     \
 203                         TARGET_ASM_FUNCTION_EPILOGUE,           \
 204                         TARGET_ASM_NAMED_SECTION,               \
 205                         TARGET_ASM_EXCEPTION_SECTION,           \
 206                         TARGET_ASM_EH_FRAME_SECTION,            \
 207                         TARGET_ASM_SELECT_SECTION,              \
 208                         TARGET_ASM_SELECT_RTX_SECTION,          \
 209                         TARGET_ASM_UNIQUE_SECTION,              \
 210                         TARGET_ASM_CONSTRUCTOR,                 \
 211                         TARGET_ASM_DESTRUCTOR,                  \
 212                         TARGET_ASM_OUTPUT_MI_THUNK,             \
 213                         TARGET_ASM_CAN_OUTPUT_MI_THUNK,         \
 214                         TARGET_ASM_FILE_START,                  \
 215                         TARGET_ASM_FILE_END,                    \
 216                         TARGET_ASM_EXTERNAL_LIBCALL}
 217
 218 /* Scheduler hooks.  All of these default to null pointers, which
 219    haifa-sched.c looks for and handles.  */
 220 #define TARGET_SCHED_ADJUST_COST 0
 221 #define TARGET_SCHED_ADJUST_PRIORITY 0
 222 #define TARGET_SCHED_ISSUE_RATE 0
 223 #define TARGET_SCHED_VARIABLE_ISSUE 0
 224 #define TARGET_SCHED_INIT 0
 225 #define TARGET_SCHED_FINISH 0
 226 #define TARGET_SCHED_INIT_GLOBAL 0
 227 #define TARGET_SCHED_FINISH_GLOBAL 0
 228 #define TARGET_SCHED_REORDER 0
 229 #define TARGET_SCHED_REORDER2 0
 230 #define TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK 0
 231 #define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE 0
 232 #define TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN 0
 233 #define TARGET_SCHED_DFA_PRE_CYCLE_INSN 0
 234 #define TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN 0
 235 #define TARGET_SCHED_DFA_POST_CYCLE_INSN 0
 236 #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD 0
 237 #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD 0
 238 #define TARGET_SCHED_DFA_NEW_CYCLE 0
 239 #define TARGET_SCHED_INIT_DFA_BUBBLES 0
 240 #define TARGET_SCHED_DFA_BUBBLE 0
 241 #define TARGET_SCHED_IS_COSTLY_DEPENDENCE 0
 242
 243 #define TARGET_SCHED                                            \
 244   {TARGET_SCHED_ADJUST_COST,                                    \
 245    TARGET_SCHED_ADJUST_PRIORITY,                                \
 246    TARGET_SCHED_ISSUE_RATE,                                     \
 247    TARGET_SCHED_VARIABLE_ISSUE,                                 \
 248    TARGET_SCHED_INIT,                                           \
 249    TARGET_SCHED_FINISH,                                         \
 250    TARGET_SCHED_INIT_GLOBAL,                                    \
 251    TARGET_SCHED_FINISH_GLOBAL,                                  \
 252    TARGET_SCHED_REORDER,                                        \
 253    TARGET_SCHED_REORDER2,                                       \
 254    TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK,                   \
 255    TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,                     \
 256    TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,                        \
 257    TARGET_SCHED_DFA_PRE_CYCLE_INSN,                             \
 258    TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,                       \
 259    TARGET_SCHED_DFA_POST_CYCLE_INSN,                            \
 260    TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,            \
 261    TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD,      \
 262    TARGET_SCHED_DFA_NEW_CYCLE,                                  \
 263    TARGET_SCHED_INIT_DFA_BUBBLES,                               \
 264    TARGET_SCHED_DFA_BUBBLE,                                     \
 265    TARGET_SCHED_IS_COSTLY_DEPENDENCE}
 266
 267 /* In tree.c.  */
 268 #define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
 269 #define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
 270 #define TARGET_ATTRIBUTE_TABLE NULL
 271
 272 /* In cse.c.  */
 273 #define TARGET_ADDRESS_COST default_address_cost
 274
 275 /* In builtins.c.  */
 276 #define TARGET_INIT_BUILTINS hook_void_void
 277 #define TARGET_EXPAND_BUILTIN default_expand_builtin
 278
 279 /* In varasm.c.  */
 280 #ifndef TARGET_SECTION_TYPE_FLAGS
 281 #define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
 282 #endif
 283
 284 #ifndef TARGET_STRIP_NAME_ENCODING
 285 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
 286 #endif
 287
 288 #ifndef TARGET_BINDS_LOCAL_P
 289 #define TARGET_BINDS_LOCAL_P default_binds_local_p
 290 #endif
 291
 292 #ifndef TARGET_VALID_POINTER_MODE
 293 #define TARGET_VALID_POINTER_MODE default_valid_pointer_mode
 294 #endif
 295
 296 #ifndef TARGET_VECTOR_OPAQUE_P
 297 #define TARGET_VECTOR_OPAQUE_P hook_bool_tree_false
 298 #endif
 299
 300 /* In hook.c.  */
 301 #define TARGET_CANNOT_MODIFY_JUMPS_P hook_bool_void_false
 302 #define TARGET_BRANCH_TARGET_REGISTER_CLASS hook_int_void_no_regs
 303 #define TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED hook_bool_bool_false
 304 #define TARGET_CANNOT_FORCE_CONST_MEM hook_bool_rtx_false
 305 #define TARGET_CANNOT_COPY_INSN_P NULL
 306 #define TARGET_DELEGITIMIZE_ADDRESS hook_rtx_rtx_identity
 307 #define TARGET_FUNCTION_OK_FOR_SIBCALL hook_bool_tree_tree_false
 308 #define TARGET_COMP_TYPE_ATTRIBUTES hook_int_tree_tree_1
 309 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES hook_void_tree
 310 #define TARGET_INSERT_ATTRIBUTES hook_void_tree_treeptr
 311 #define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P hook_bool_tree_false
 312 #define TARGET_MS_BITFIELD_LAYOUT_P hook_bool_tree_false
 313 #define TARGET_RTX_COSTS hook_bool_rtx_int_int_intp_false
 314 #define TARGET_MANGLE_FUNDAMENTAL_TYPE hook_constcharptr_tree_null
 315
 316 #ifndef TARGET_INIT_LIBFUNCS
 317 #define TARGET_INIT_LIBFUNCS hook_void_void
 318 #endif
 319
 320 #ifndef TARGET_IN_SMALL_DATA_P
 321 #define TARGET_IN_SMALL_DATA_P hook_bool_tree_false
 322 #endif
 323
 324 #ifndef TARGET_ENCODE_SECTION_INFO
 325 #define TARGET_ENCODE_SECTION_INFO default_encode_section_info
 326 #endif
 327
 328 #define TARGET_FIXED_CONDITION_CODE_REGS hook_bool_uintp_uintp_false
 329
 330 #define TARGET_CC_MODES_COMPATIBLE default_cc_modes_compatible
 331
 332 #define TARGET_MACHINE_DEPENDENT_REORG 0
 333
 334 #define TARGET_BUILD_BUILTIN_VA_LIST std_build_builtin_va_list
 335
 336 #define TARGET_GET_PCH_VALIDITY default_get_pch_validity
 337 #define TARGET_PCH_VALID_P default_pch_valid_p
 338
 339 #define TARGET_DEFAULT_SHORT_ENUMS hook_bool_void_false
 340
 341 #define TARGET_BUILTIN_SETJMP_FRAME_VALUE default_builtin_setjmp_frame_value
 342
 343 #define TARGET_MD_ASM_CLOBBERS hook_tree_tree_identity
 344
 345 #define TARGET_PROMOTE_FUNCTION_ARGS hook_bool_tree_false
 346 #define TARGET_PROMOTE_FUNCTION_RETURN hook_bool_tree_false
 347 #define TARGET_PROMOTE_PROTOTYPES hook_bool_tree_false
 348
 349 #define TARGET_STRUCT_VALUE_RTX hook_rtx_tree_int_null
 350 #define TARGET_RETURN_IN_MEMORY default_return_in_memory
 351 #define TARGET_RETURN_IN_MSB hook_bool_tree_false
 352
 353 #define TARGET_EXPAND_BUILTIN_SAVEREGS default_expand_builtin_saveregs
 354 #define TARGET_SETUP_INCOMING_VARARGS default_setup_incoming_varargs
 355 #define TARGET_STRICT_ARGUMENT_NAMING hook_bool_CUMULATIVE_ARGS_false
 356 #define TARGET_PRETEND_OUTGOING_VARARGS_NAMED \
 357   default_pretend_outgoing_varargs_named
 358 #define TARGET_SPLIT_COMPLEX_ARG NULL
 359
 360 #define TARGET_CALLS {                                          \
 361    TARGET_PROMOTE_FUNCTION_ARGS,                                \
 362    TARGET_PROMOTE_FUNCTION_RETURN,                              \
 363    TARGET_PROMOTE_PROTOTYPES,                                   \
 364    TARGET_STRUCT_VALUE_RTX,                                     \
 365    TARGET_RETURN_IN_MEMORY,                                     \
 366    TARGET_RETURN_IN_MSB,                                        \
 367    TARGET_EXPAND_BUILTIN_SAVEREGS,                              \
 368    TARGET_SETUP_INCOMING_VARARGS,                               \
 369    TARGET_STRICT_ARGUMENT_NAMING,                               \
 370    TARGET_PRETEND_OUTGOING_VARARGS_NAMED,                       \
 371    TARGET_SPLIT_COMPLEX_ARG,                                    \
 372    }
 373
 374 /* The whole shebang.  */
 375 #define TARGET_INITIALIZER                      \
 376 {                                               \
 377   TARGET_ASM_OUT,                               \
 378   TARGET_SCHED,                                 \
 379   TARGET_MERGE_DECL_ATTRIBUTES,                 \
 380   TARGET_MERGE_TYPE_ATTRIBUTES,                 \
 381   TARGET_ATTRIBUTE_TABLE,                       \
 382   TARGET_COMP_TYPE_ATTRIBUTES,                  \
 383   TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,           \
 384   TARGET_INSERT_ATTRIBUTES,                     \
 385   TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,        \
 386   TARGET_MS_BITFIELD_LAYOUT_P,                  \
 387   TARGET_INIT_BUILTINS,                         \
 388   TARGET_EXPAND_BUILTIN,                        \
 389   TARGET_MANGLE_FUNDAMENTAL_TYPE,               \
 390   TARGET_INIT_LIBFUNCS,                         \
 391   TARGET_SECTION_TYPE_FLAGS,                    \
 392   TARGET_CANNOT_MODIFY_JUMPS_P,                 \
 393   TARGET_BRANCH_TARGET_REGISTER_CLASS,          \
 394   TARGET_BRANCH_TARGET_REGISTER_CALLEE_SAVED,   \
 395   TARGET_CANNOT_FORCE_CONST_MEM,                \
 396   TARGET_CANNOT_COPY_INSN_P,                    \
 397   TARGET_DELEGITIMIZE_ADDRESS,                  \
 398   TARGET_FUNCTION_OK_FOR_SIBCALL,               \
 399   TARGET_IN_SMALL_DATA_P,                       \
 400   TARGET_BINDS_LOCAL_P,                         \
 401   TARGET_ENCODE_SECTION_INFO,                   \
 402   TARGET_STRIP_NAME_ENCODING,                   \
 403   TARGET_VALID_POINTER_MODE,                    \
 404   TARGET_VECTOR_OPAQUE_P,                       \
 405   TARGET_RTX_COSTS,                             \
 406   TARGET_ADDRESS_COST,                          \
 407   TARGET_DWARF_REGISTER_SPAN,                   \
 408   TARGET_FIXED_CONDITION_CODE_REGS,             \
 409   TARGET_CC_MODES_COMPATIBLE,                   \
 410   TARGET_MACHINE_DEPENDENT_REORG,               \
 411   TARGET_BUILD_BUILTIN_VA_LIST,                 \
 412   TARGET_GET_PCH_VALIDITY,                      \
 413   TARGET_PCH_VALID_P,                           \
 414   TARGET_DEFAULT_SHORT_ENUMS,                   \
 415   TARGET_BUILTIN_SETJMP_FRAME_VALUE,            \
 416   TARGET_MD_ASM_CLOBBERS,                       \
 417   TARGET_CALLS,                                 \
 418   TARGET_HAVE_NAMED_SECTIONS,                   \
 419   TARGET_HAVE_CTORS_DTORS,                      \
 420   TARGET_HAVE_TLS,                              \
 421   TARGET_HAVE_SRODATA_SECTION,                  \
 422   TARGET_TERMINATE_DW2_EH_FRAME_INFO,           \
 423   TARGET_ASM_FILE_START_APP_OFF,                \
 424   TARGET_ASM_FILE_START_FILE_DIRECTIVE,         \
 425 }
 426
 427 #include "hooks.h"
 428 #include "targhooks.h"