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