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