gcc/target-def.h

   1 /* Default initializers for a generic GCC target.
   2    Copyright (C) 2001 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 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
  63 # ifdef CTORS_SECTION_ASM_OP
  64 #  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
  65 # else
  66 #  ifdef TARGET_ASM_NAMED_SECTION
  67 #   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
  68 #  else
  69 #   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
  70 #  endif
  71 # endif
  72 #endif
  73
  74 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
  75 # ifdef DTORS_SECTION_ASM_OP
  76 #  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
  77 # else
  78 #  ifdef TARGET_ASM_NAMED_SECTION
  79 #   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
  80 #  else
  81 #   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
  82 #  endif
  83 # endif
  84 #endif
  85
  86 #if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
  87 #define TARGET_HAVE_CTORS_DTORS true
  88 #else
  89 #define TARGET_HAVE_CTORS_DTORS false
  90 #define TARGET_ASM_CONSTRUCTOR NULL
  91 #define TARGET_ASM_DESTRUCTOR NULL
  92 #endif
  93
  94 #ifdef TARGET_ASM_NAMED_SECTION
  95 #define TARGET_HAVE_NAMED_SECTIONS true
  96 #else
  97 #define TARGET_ASM_NAMED_SECTION default_no_named_section
  98 #define TARGET_HAVE_NAMED_SECTIONS false
  99 #endif
 100
 101 #ifndef TARGET_ASM_EXCEPTION_SECTION
 102 #define TARGET_ASM_EXCEPTION_SECTION default_exception_section
 103 #endif
 104
 105 #ifndef TARGET_ASM_EH_FRAME_SECTION
 106 #define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
 107 #endif
 108
 109 #define TARGET_ASM_ALIGNED_INT_OP                               \
 110                        {TARGET_ASM_ALIGNED_HI_OP,               \
 111                         TARGET_ASM_ALIGNED_SI_OP,               \
 112                         TARGET_ASM_ALIGNED_DI_OP,               \
 113                         TARGET_ASM_ALIGNED_TI_OP}
 114
 115 #define TARGET_ASM_UNALIGNED_INT_OP                             \
 116                        {TARGET_ASM_UNALIGNED_HI_OP,             \
 117                         TARGET_ASM_UNALIGNED_SI_OP,             \
 118                         TARGET_ASM_UNALIGNED_DI_OP,             \
 119                         TARGET_ASM_UNALIGNED_TI_OP}
 120
 121 #define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,                  \
 122                         TARGET_ASM_CLOSE_PAREN,                 \
 123                         TARGET_ASM_BYTE_OP,                     \
 124                         TARGET_ASM_ALIGNED_INT_OP,              \
 125                         TARGET_ASM_UNALIGNED_INT_OP,            \
 126                         TARGET_ASM_INTEGER,                     \
 127                         TARGET_ASM_FUNCTION_PROLOGUE,           \
 128                         TARGET_ASM_FUNCTION_END_PROLOGUE,       \
 129                         TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,     \
 130                         TARGET_ASM_FUNCTION_EPILOGUE,           \
 131                         TARGET_ASM_NAMED_SECTION,               \
 132                         TARGET_ASM_EXCEPTION_SECTION,           \
 133                         TARGET_ASM_EH_FRAME_SECTION,            \
 134                         TARGET_ASM_CONSTRUCTOR,                 \
 135                         TARGET_ASM_DESTRUCTOR}
 136
 137 /* Scheduler hooks.  All of these default to null pointers, which
 138    haifa-sched.c looks for and handles.  */
 139 #define TARGET_SCHED_ADJUST_COST 0
 140 #define TARGET_SCHED_ADJUST_PRIORITY 0
 141 #define TARGET_SCHED_ISSUE_RATE 0
 142 #define TARGET_SCHED_VARIABLE_ISSUE 0
 143 #define TARGET_SCHED_INIT 0
 144 #define TARGET_SCHED_FINISH 0
 145 #define TARGET_SCHED_REORDER 0
 146 #define TARGET_SCHED_REORDER2 0
 147 #define TARGET_SCHED_CYCLE_DISPLAY 0
 148
 149 #define TARGET_SCHED    {TARGET_SCHED_ADJUST_COST,      \
 150                          TARGET_SCHED_ADJUST_PRIORITY,  \
 151                          TARGET_SCHED_ISSUE_RATE,       \
 152                          TARGET_SCHED_VARIABLE_ISSUE,   \
 153                          TARGET_SCHED_INIT,             \
 154                          TARGET_SCHED_FINISH,           \
 155                          TARGET_SCHED_REORDER,          \
 156                          TARGET_SCHED_REORDER2,         \
 157                          TARGET_SCHED_CYCLE_DISPLAY}
 158
 159 /* All in tree.c.  */
 160 #define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
 161 #define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
 162 #define TARGET_ATTRIBUTE_TABLE default_target_attribute_table
 163 #define TARGET_COMP_TYPE_ATTRIBUTES default_comp_type_attributes
 164 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES default_set_default_type_attributes
 165 #define TARGET_INSERT_ATTRIBUTES default_insert_attributes
 166 #define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P default_function_attribute_inlinable_p
 167
 168 /* In builtins.c.  */
 169 #define TARGET_INIT_BUILTINS default_init_builtins
 170 #define TARGET_EXPAND_BUILTIN default_expand_builtin
 171
 172 /* In varasm.c.  */
 173 #ifndef TARGET_SECTION_TYPE_FLAGS
 174 #define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
 175 #endif
 176
 177 /* The whole shebang.  */
 178 #define TARGET_INITIALIZER                      \
 179 {                                               \
 180   TARGET_ASM_OUT,                               \
 181   TARGET_SCHED,                                 \
 182   TARGET_MERGE_DECL_ATTRIBUTES,                 \
 183   TARGET_MERGE_TYPE_ATTRIBUTES,                 \
 184   TARGET_ATTRIBUTE_TABLE,                       \
 185   TARGET_COMP_TYPE_ATTRIBUTES,                  \
 186   TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,           \
 187   TARGET_INSERT_ATTRIBUTES,                     \
 188   TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,        \
 189   TARGET_INIT_BUILTINS,                         \
 190   TARGET_EXPAND_BUILTIN,                        \
 191   TARGET_SECTION_TYPE_FLAGS,                    \
 192   TARGET_HAVE_NAMED_SECTIONS,                   \
 193   TARGET_HAVE_CTORS_DTORS                       \
 194 }