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