gcc/target-def.h

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