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 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_ASM_EXCEPTION_SECTION
 130 #define TARGET_ASM_EXCEPTION_SECTION default_exception_section
 131 #endif
 132
 133 #ifndef TARGET_ASM_EH_FRAME_SECTION
 134 #define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
 135 #endif
 136
 137 #define TARGET_ASM_ALIGNED_INT_OP                               \
 138                        {TARGET_ASM_ALIGNED_HI_OP,               \
 139                         TARGET_ASM_ALIGNED_SI_OP,               \
 140                         TARGET_ASM_ALIGNED_DI_OP,               \
 141                         TARGET_ASM_ALIGNED_TI_OP}
 142
 143 #define TARGET_ASM_UNALIGNED_INT_OP                             \
 144                        {TARGET_ASM_UNALIGNED_HI_OP,             \
 145                         TARGET_ASM_UNALIGNED_SI_OP,             \
 146                         TARGET_ASM_UNALIGNED_DI_OP,             \
 147                         TARGET_ASM_UNALIGNED_TI_OP}
 148
 149 #define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,                  \
 150                         TARGET_ASM_CLOSE_PAREN,                 \
 151                         TARGET_ASM_BYTE_OP,                     \
 152                         TARGET_ASM_ALIGNED_INT_OP,              \
 153                         TARGET_ASM_UNALIGNED_INT_OP,            \
 154                         TARGET_ASM_INTEGER,                     \
 155                         TARGET_ASM_GLOBALIZE_LABEL,             \
 156                         TARGET_ASM_ASSEMBLE_VISIBILITY,         \
 157                         TARGET_ASM_FUNCTION_PROLOGUE,           \
 158                         TARGET_ASM_FUNCTION_END_PROLOGUE,       \
 159                         TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,     \
 160                         TARGET_ASM_FUNCTION_EPILOGUE,           \
 161                         TARGET_ASM_NAMED_SECTION,               \
 162                         TARGET_ASM_EXCEPTION_SECTION,           \
 163                         TARGET_ASM_EH_FRAME_SECTION,            \
 164                         TARGET_ASM_SELECT_SECTION,              \
 165                         TARGET_ASM_SELECT_RTX_SECTION,          \
 166                         TARGET_ASM_UNIQUE_SECTION,              \
 167                         TARGET_ASM_CONSTRUCTOR,                 \
 168                         TARGET_ASM_DESTRUCTOR}
 169
 170 /* Scheduler hooks.  All of these default to null pointers, which
 171    haifa-sched.c looks for and handles.  */
 172 #define TARGET_SCHED_ADJUST_COST 0
 173 #define TARGET_SCHED_ADJUST_PRIORITY 0
 174 #define TARGET_SCHED_ISSUE_RATE 0
 175 #define TARGET_SCHED_VARIABLE_ISSUE 0
 176 #define TARGET_SCHED_INIT 0
 177 #define TARGET_SCHED_FINISH 0
 178 #define TARGET_SCHED_REORDER 0
 179 #define TARGET_SCHED_REORDER2 0
 180 #define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE 0
 181 #define TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN 0
 182 #define TARGET_SCHED_DFA_PRE_CYCLE_INSN 0
 183 #define TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN 0
 184 #define TARGET_SCHED_DFA_POST_CYCLE_INSN 0
 185 #define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD 0
 186 #define TARGET_SCHED_INIT_DFA_BUBBLES 0
 187 #define TARGET_SCHED_DFA_BUBBLE 0
 188
 189 #define TARGET_SCHED                                            \
 190   {TARGET_SCHED_ADJUST_COST,                                    \
 191    TARGET_SCHED_ADJUST_PRIORITY,                                \
 192    TARGET_SCHED_ISSUE_RATE,                                     \
 193    TARGET_SCHED_VARIABLE_ISSUE,                                 \
 194    TARGET_SCHED_INIT,                                           \
 195    TARGET_SCHED_FINISH,                                         \
 196    TARGET_SCHED_REORDER,                                        \
 197    TARGET_SCHED_REORDER2,                                       \
 198    TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,                     \
 199    TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,                        \
 200    TARGET_SCHED_DFA_PRE_CYCLE_INSN,                             \
 201    TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,                       \
 202    TARGET_SCHED_DFA_POST_CYCLE_INSN,                            \
 203    TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,            \
 204    TARGET_SCHED_INIT_DFA_BUBBLES,                               \
 205    TARGET_SCHED_DFA_BUBBLE}
 206
 207 /* All in tree.c.  */
 208 #define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
 209 #define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
 210 #define TARGET_ATTRIBUTE_TABLE NULL
 211 #define TARGET_COMP_TYPE_ATTRIBUTES default_comp_type_attributes
 212 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES default_set_default_type_attributes
 213 #define TARGET_INSERT_ATTRIBUTES default_insert_attributes
 214 #define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P default_function_attribute_inlinable_p
 215 #define TARGET_MS_BITFIELD_LAYOUT_P default_ms_bitfield_layout_p
 216
 217 /* In builtins.c.  */
 218 #define TARGET_INIT_BUILTINS default_init_builtins
 219 #define TARGET_EXPAND_BUILTIN default_expand_builtin
 220
 221 /* In varasm.c.  */
 222 #ifndef TARGET_SECTION_TYPE_FLAGS
 223 #define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
 224 #endif
 225
 226 #ifndef TARGET_STRIP_NAME_ENCODING
 227 #define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
 228 #endif
 229
 230 #ifndef TARGET_BINDS_LOCAL_P
 231 #define TARGET_BINDS_LOCAL_P default_binds_local_p
 232 #endif
 233
 234 /* In hook.c.  */
 235 #define TARGET_CANNOT_MODIFY_JUMPS_P hook_void_bool_false
 236
 237 #ifndef TARGET_IN_SMALL_DATA_P
 238 #define TARGET_IN_SMALL_DATA_P hook_tree_bool_false
 239 #endif
 240
 241 #ifndef TARGET_ENCODE_SECTION_INFO
 242 #define TARGET_ENCODE_SECTION_INFO hook_tree_int_void
 243 #endif
 244
 245 /* The whole shebang.  */
 246 #define TARGET_INITIALIZER                      \
 247 {                                               \
 248   TARGET_ASM_OUT,                               \
 249   TARGET_SCHED,                                 \
 250   TARGET_MERGE_DECL_ATTRIBUTES,                 \
 251   TARGET_MERGE_TYPE_ATTRIBUTES,                 \
 252   TARGET_ATTRIBUTE_TABLE,                       \
 253   TARGET_COMP_TYPE_ATTRIBUTES,                  \
 254   TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,           \
 255   TARGET_INSERT_ATTRIBUTES,                     \
 256   TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,        \
 257   TARGET_MS_BITFIELD_LAYOUT_P,                  \
 258   TARGET_INIT_BUILTINS,                         \
 259   TARGET_EXPAND_BUILTIN,                        \
 260   TARGET_SECTION_TYPE_FLAGS,                    \
 261   TARGET_CANNOT_MODIFY_JUMPS_P,                 \
 262   TARGET_IN_SMALL_DATA_P,                       \
 263   TARGET_BINDS_LOCAL_P,                         \
 264   TARGET_ENCODE_SECTION_INFO,                   \
 265   TARGET_STRIP_NAME_ENCODING,                   \
 266   TARGET_HAVE_NAMED_SECTIONS,                   \
 267   TARGET_HAVE_CTORS_DTORS,                      \
 268   TARGET_HAVE_TLS,                              \
 269   TARGET_HAVE_SRODATA_SECTION                   \
 270 }
 271
 272 #include "hooks.h"