gcc/target-def.h

   1 /* Default initializers for a generic GCC target.
   2    Copyright (C) 2001, 2002, 2003 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) || defined (OBJECT_FORMAT_ROSE)
  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 || OBJECT_FORMAT_ROSE */
  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 #ifndef TARGET_ASM_INTERNAL_LABEL
  61 #define TARGET_ASM_INTERNAL_LABEL default_internal_label
  62 #endif
  63
  64 #ifndef TARGET_ASM_ASSEMBLE_VISIBILITY
  65 #define TARGET_ASM_ASSEMBLE_VISIBILITY default_assemble_visibility
  66 #endif
  67
  68 #define TARGET_ASM_FUNCTION_PROLOGUE default_function_pro_epilogue
  69 #define TARGET_ASM_FUNCTION_EPILOGUE default_function_pro_epilogue
  70 #define TARGET_ASM_FUNCTION_END_PROLOGUE no_asm_to_stream
  71 #define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE no_asm_to_stream
  72
  73 #ifndef TARGET_ASM_SELECT_SECTION
  74 #define TARGET_ASM_SELECT_SECTION default_select_section
  75 #endif
  76
  77 #ifndef TARGET_ASM_UNIQUE_SECTION
  78 #define TARGET_ASM_UNIQUE_SECTION default_unique_section
  79 #endif
  80
  81 #ifndef TARGET_ASM_SELECT_RTX_SECTION
  82 #define TARGET_ASM_SELECT_RTX_SECTION default_select_rtx_section
  83 #endif
  84
  85 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
  86 # ifdef CTORS_SECTION_ASM_OP
  87 #  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
  88 # else
  89 #  ifdef TARGET_ASM_NAMED_SECTION
  90 #   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
  91 #  else
  92 #   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
  93 #  endif
  94 # endif
  95 #endif
  96
  97 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
  98 # ifdef DTORS_SECTION_ASM_OP
  99 #  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
 100 # else
 101 #  ifdef TARGET_ASM_NAMED_SECTION
 102 #   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
 103 #  else
 104 #   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
 105 #  endif
 106 # endif
 107 #endif
 108
 109 #define TARGET_ASM_OUTPUT_MI_THUNK NULL
 110 #define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_tree_hwi_hwi_tree_false
 111
 112 #if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
 113 #define TARGET_HAVE_CTORS_DTORS true
 114 #else
 115 #define TARGET_HAVE_CTORS_DTORS false
 116 #define TARGET_ASM_CONSTRUCTOR NULL
 117 #define TARGET_ASM_DESTRUCTOR NULL
 118 #endif
 119
 120 #ifdef TARGET_ASM_NAMED_SECTION
 121 #define TARGET_HAVE_NAMED_SECTIONS true
 122 #else
 123 #define TARGET_ASM_NAMED_SECTION default_no_named_section
 124 #define TARGET_HAVE_NAMED_SECTIONS false
 125 #endif
 126
 127 #ifndef TARGET_HAVE_TLS
 128 #define TARGET_HAVE_TLS false
 129 #endif
 130
 131 #ifndef TARGET_HAVE_SRODATA_SECTION
 132 #define TARGET_HAVE_SRODATA_SECTION false
 133 #endif
 134
 135 #ifndef TARGET_TERMINATE_DW2_EH_FRAME_INFO
 136 #ifdef EH_FRAME_SECTION_NAME
 137 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
 138 #else
 139 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO true
 140 #endif
 141 #endif
 142
 143 #define TARGET_DWARF_REGISTER_SPAN hook_rtx_rtx_null
 144
 145 #ifndef TARGET_ASM_EXCEPTION_SECTION
 146 #define TARGET_ASM_EXCEPTION_SECTION default_exception_section
 147 #endif
 148
 149 #ifndef TARGET_ASM_EH_FRAME_SECTION
 150 #define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
 151 #endif
 152
 153 #define TARGET_ASM_ALIGNED_INT_OP                               \
 154                        {TARGET_ASM_ALIGNED_HI_OP,               \
 155                         TARGET_ASM_ALIGNED_SI_OP,               \
 156                         TARGET_ASM_ALIGNED_DI_OP,               \
 157                         TARGET_ASM_ALIGNED_TI_OP}
 158
 159 #define TARGET_ASM_UNALIGNED_INT_OP                             \
 160                        {TARGET_ASM_UNALIGNED_HI_OP,             \
 161                         TARGET_ASM_UNALIGNED_SI_OP,             \
 162                         TARGET_ASM_UNALIGNED_DI_OP,             \
 163                         TARGET_ASM_UNALIGNED_TI_OP}
 164
 165 #define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,                  \
 166                         TARGET_ASM_CLOSE_PAREN,                 \
 167                         TARGET_ASM_BYTE_OP,                     \
 168                         TARGET_ASM_ALIGNED_INT_OP,              \
 169                         TARGET_ASM_UNALIGNED_INT_OP,            \
 170                         TARGET_ASM_INTEGER,                     \
 171                         TARGET_ASM_GLOBALIZE_LABEL,             \
 172                         TARGET_ASM_INTERNAL_LABEL,              \
 173                         TARGET_ASM_ASSEMBLE_VISIBILITY,         \
 174                         TARGET_ASM_FUNCTION_PROLOGUE,           \
 175                         TARGET_ASM_FUNCTION_END_PROLOGUE,       \
 176                         TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,     \
 177                         TARGET_ASM_FUNCTION_EPILOGUE,           \
 178                         TARGET_ASM_NAMED_SECTION,               \
 179                         TARGET_ASM_EXCEPTION_SECTION,           \
 180                         TARGET_ASM_EH_FRAME_SECTION,            \
 181                         TARGET_ASM_SELECT_SECTION,              \
 182                         TARGET_ASM_SELECT_RTX_SECTION,          \
 183                         TARGET_ASM_UNIQUE_SECTION,              \
 184                         TARGET_ASM_CONSTRUCTOR,                 \
 185                         TARGET_ASM_DESTRUCTOR,                  \
 186                         TARGET_ASM_OUTPUT_MI_THUNK,             \
 187                         TARGET_ASM_CAN_OUTPUT_MI_THUNK }
 188
 189 /* Scheduler hooks.  All of these default to null pointers, which
 190    haifa-sched.c looks for and handles.  */
 191 #define TARGET_SCHED_ADJUST_COST 0
 192 #define TARGET_SCHED_ADJUST_PRIORITY 0
 193 #define TARGET_SCHED_ISSUE_RATE 0
 194 #define TARGET_SCHED_VARIABLE_ISSUE 0
 195 #define TARGET_SCHED_INIT 0
 196 #define TARGET_SCHED_FINISH 0
 197 #define TARGET_SCHED_REORDER 0
 198 #define TARGET_SCHED_REORDER2 0
 199 #define TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK 0
 200 #define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE 0
 201 #define TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN 0
 202 #define TARGET_SCHED_DFA_PRE_CYCLE_INSN 0
 203 #define TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN 0
 204 #define TARGET_SCHED_DFA_POST_CYCLE_INSN 0
 205 #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD 0
 206 #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD 0
 207 #define TARGET_SCHED_DFA_NEW_CYCLE 0
 208 #define TARGET_SCHED_INIT_DFA_BUBBLES 0
 209 #define TARGET_SCHED_DFA_BUBBLE 0
 210
 211 #define TARGET_SCHED                                            \
 212   {TARGET_SCHED_ADJUST_COST,                                    \
 213    TARGET_SCHED_ADJUST_PRIORITY,                                \
 214    TARGET_SCHED_ISSUE_RATE,                                     \
 215    TARGET_SCHED_VARIABLE_ISSUE,                                 \
 216    TARGET_SCHED_INIT,                                           \
 217    TARGET_SCHED_FINISH,                                         \
 218    TARGET_SCHED_REORDER,                                        \
 219    TARGET_SCHED_REORDER2,                                       \
 220    TARGET_SCHED_DEPENDENCIES_EVALUATION_HOOK,                   \
 221    TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,                     \
 222    TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,                        \
 223    TARGET_SCHED_DFA_PRE_CYCLE_INSN,                             \
 224    TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,                       \
 225    TARGET_SCHED_DFA_POST_CYCLE_INSN,                            \
 226    TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,            \
 227    TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD_GUARD,      \
 228    TARGET_SCHED_DFA_NEW_CYCLE,                                  \
 229    TARGET_SCHED_INIT_DFA_BUBBLES,                               \
 230    TARGET_SCHED_DFA_BUBBLE}
 231
 232 /* In tree.c.  */
 233 #define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
 234 #define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
 235 #define TARGET_ATTRIBUTE_TABLE NULL
 236
 237 /* In cse.c.  */
 238 #define TARGET_ADDRESS_COST default_address_cost
 239
 240 /* In builtins.c.  */
 241 #define TARGET_INIT_BUILTINS default_init_builtins
 242 #define TARGET_EXPAND_BUILTIN default_expand_builtin
 243
 244 /* In varasm.c.  */
 245 #ifndef TARGET_SECTION_TYPE_FLAGS
 246 #define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
 247 #endif
 248
 249 #ifndef TARGET_STRIP_NAME_ENCODING
 250 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
 251 #endif
 252
 253 #ifndef TARGET_BINDS_LOCAL_P
 254 #define TARGET_BINDS_LOCAL_P default_binds_local_p
 255 #endif
 256
 257 #ifndef TARGET_VALID_POINTER_MODE
 258 #define TARGET_VALID_POINTER_MODE default_valid_pointer_mode
 259 #endif
 260
 261 #ifndef TARGET_VECTOR_OPAQUE_P
 262 #define TARGET_VECTOR_OPAQUE_P hook_bool_tree_false
 263 #endif
 264
 265 /* In hook.c.  */
 266 #define TARGET_CANNOT_MODIFY_JUMPS_P hook_bool_void_false
 267 #define TARGET_CANNOT_FORCE_CONST_MEM hook_bool_rtx_false
 268 #define TARGET_CANNOT_COPY_INSN_P NULL
 269 #define TARGET_DELEGITIMIZE_ADDRESS hook_rtx_rtx_identity
 270 #define TARGET_FUNCTION_OK_FOR_SIBCALL hook_bool_tree_tree_false
 271 #define TARGET_COMP_TYPE_ATTRIBUTES hook_int_tree_tree_1
 272 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES hook_void_tree
 273 #define TARGET_INSERT_ATTRIBUTES hook_void_tree_treeptr
 274 #define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P hook_bool_tree_false
 275 #define TARGET_MS_BITFIELD_LAYOUT_P hook_bool_tree_false
 276 #define TARGET_RTX_COSTS hook_bool_rtx_int_int_intp_false
 277
 278 #ifndef TARGET_IN_SMALL_DATA_P
 279 #define TARGET_IN_SMALL_DATA_P hook_bool_tree_false
 280 #endif
 281
 282 #ifndef TARGET_ENCODE_SECTION_INFO
 283 #define TARGET_ENCODE_SECTION_INFO default_encode_section_info
 284 #endif
 285
 286 /* The whole shebang.  */
 287 #define TARGET_INITIALIZER                      \
 288 {                                               \
 289   TARGET_ASM_OUT,                               \
 290   TARGET_SCHED,                                 \
 291   TARGET_MERGE_DECL_ATTRIBUTES,                 \
 292   TARGET_MERGE_TYPE_ATTRIBUTES,                 \
 293   TARGET_ATTRIBUTE_TABLE,                       \
 294   TARGET_COMP_TYPE_ATTRIBUTES,                  \
 295   TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,           \
 296   TARGET_INSERT_ATTRIBUTES,                     \
 297   TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,        \
 298   TARGET_MS_BITFIELD_LAYOUT_P,                  \
 299   TARGET_INIT_BUILTINS,                         \
 300   TARGET_EXPAND_BUILTIN,                        \
 301   TARGET_SECTION_TYPE_FLAGS,                    \
 302   TARGET_CANNOT_MODIFY_JUMPS_P,                 \
 303   TARGET_CANNOT_FORCE_CONST_MEM,                \
 304   TARGET_CANNOT_COPY_INSN_P,                    \
 305   TARGET_DELEGITIMIZE_ADDRESS,                  \
 306   TARGET_FUNCTION_OK_FOR_SIBCALL,               \
 307   TARGET_IN_SMALL_DATA_P,                       \
 308   TARGET_BINDS_LOCAL_P,                         \
 309   TARGET_ENCODE_SECTION_INFO,                   \
 310   TARGET_STRIP_NAME_ENCODING,                   \
 311   TARGET_VALID_POINTER_MODE,                    \
 312   TARGET_VECTOR_OPAQUE_P,                       \
 313   TARGET_RTX_COSTS,                             \
 314   TARGET_ADDRESS_COST,                          \
 315   TARGET_DWARF_REGISTER_SPAN,                   \
 316   TARGET_HAVE_NAMED_SECTIONS,                   \
 317   TARGET_HAVE_CTORS_DTORS,                      \
 318   TARGET_HAVE_TLS,                              \
 319   TARGET_HAVE_SRODATA_SECTION,                  \
 320   TARGET_TERMINATE_DW2_EH_FRAME_INFO            \
 321 }
 322
 323 #include "hooks.h"