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_FUNCTION_PROLOGUE default_function_pro_epilogue
  36 #define TARGET_ASM_FUNCTION_EPILOGUE default_function_pro_epilogue
  37 #define TARGET_ASM_FUNCTION_END_PROLOGUE no_asm_to_stream
  38 #define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE no_asm_to_stream
  39
  40 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
  41 # ifdef CTORS_SECTION_ASM_OP
  42 #  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
  43 # else
  44 #  ifdef TARGET_ASM_NAMED_SECTION
  45 #   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
  46 #  else
  47 #   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
  48 #  endif
  49 # endif
  50 #endif
  51
  52 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
  53 # ifdef DTORS_SECTION_ASM_OP
  54 #  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
  55 # else
  56 #  ifdef TARGET_ASM_NAMED_SECTION
  57 #   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
  58 #  else
  59 #   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
  60 #  endif
  61 # endif
  62 #endif
  63
  64 #if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
  65 #define TARGET_HAVE_CTORS_DTORS true
  66 #else
  67 #define TARGET_HAVE_CTORS_DTORS false
  68 #define TARGET_ASM_CONSTRUCTOR NULL
  69 #define TARGET_ASM_DESTRUCTOR NULL
  70 #endif
  71
  72 #ifdef TARGET_ASM_NAMED_SECTION
  73 #define TARGET_HAVE_NAMED_SECTIONS true
  74 #else
  75 #define TARGET_ASM_NAMED_SECTION default_no_named_section
  76 #define TARGET_HAVE_NAMED_SECTIONS false
  77 #endif
  78
  79 #ifndef TARGET_ASM_EXCEPTION_SECTION
  80 #define TARGET_ASM_EXCEPTION_SECTION default_exception_section
  81 #endif
  82
  83 #ifndef TARGET_ASM_EH_FRAME_SECTION
  84 #define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
  85 #endif
  86
  87 #define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,                  \
  88                         TARGET_ASM_CLOSE_PAREN,                 \
  89                         TARGET_ASM_FUNCTION_PROLOGUE,           \
  90                         TARGET_ASM_FUNCTION_END_PROLOGUE,       \
  91                         TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,     \
  92                         TARGET_ASM_FUNCTION_EPILOGUE,           \
  93                         TARGET_ASM_NAMED_SECTION,               \
  94                         TARGET_ASM_EXCEPTION_SECTION,           \
  95                         TARGET_ASM_EH_FRAME_SECTION,            \
  96                         TARGET_ASM_CONSTRUCTOR,                 \
  97                         TARGET_ASM_DESTRUCTOR}
  98
  99 /* Scheduler hooks.  All of these default to null pointers, which
 100    haifa-sched.c looks for and handles.  */
 101 #define TARGET_SCHED_ADJUST_COST 0
 102 #define TARGET_SCHED_ADJUST_PRIORITY 0
 103 #define TARGET_SCHED_ISSUE_RATE 0
 104 #define TARGET_SCHED_VARIABLE_ISSUE 0
 105 #define TARGET_SCHED_INIT 0
 106 #define TARGET_SCHED_FINISH 0
 107 #define TARGET_SCHED_REORDER 0
 108 #define TARGET_SCHED_REORDER2 0
 109 #define TARGET_SCHED_CYCLE_DISPLAY 0
 110
 111 #define TARGET_SCHED    {TARGET_SCHED_ADJUST_COST,      \
 112                          TARGET_SCHED_ADJUST_PRIORITY,  \
 113                          TARGET_SCHED_ISSUE_RATE,       \
 114                          TARGET_SCHED_VARIABLE_ISSUE,   \
 115                          TARGET_SCHED_INIT,             \
 116                          TARGET_SCHED_FINISH,           \
 117                          TARGET_SCHED_REORDER,          \
 118                          TARGET_SCHED_REORDER2,         \
 119                          TARGET_SCHED_CYCLE_DISPLAY}
 120
 121 /* All in tree.c.  */
 122 #define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
 123 #define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
 124 #define TARGET_ATTRIBUTE_TABLE default_target_attribute_table
 125 #define TARGET_COMP_TYPE_ATTRIBUTES default_comp_type_attributes
 126 #define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES default_set_default_type_attributes
 127 #define TARGET_INSERT_ATTRIBUTES default_insert_attributes
 128 #define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P default_function_attribute_inlinable_p
 129
 130 /* In builtins.c.  */
 131 #define TARGET_INIT_BUILTINS default_init_builtins
 132 #define TARGET_EXPAND_BUILTIN default_expand_builtin
 133
 134 /* In varasm.c.  */
 135 #ifndef TARGET_SECTION_TYPE_FLAGS
 136 #define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
 137 #endif
 138
 139 /* The whole shebang.  */
 140 #define TARGET_INITIALIZER                      \
 141 {                                               \
 142   TARGET_ASM_OUT,                               \
 143   TARGET_SCHED,                                 \
 144   TARGET_MERGE_DECL_ATTRIBUTES,                 \
 145   TARGET_MERGE_TYPE_ATTRIBUTES,                 \
 146   TARGET_ATTRIBUTE_TABLE,                       \
 147   TARGET_COMP_TYPE_ATTRIBUTES,                  \
 148   TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,           \
 149   TARGET_INSERT_ATTRIBUTES,                     \
 150   TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,        \
 151   TARGET_INIT_BUILTINS,                         \
 152   TARGET_EXPAND_BUILTIN,                        \
 153   TARGET_SECTION_TYPE_FLAGS,                    \
 154   TARGET_HAVE_NAMED_SECTIONS,                   \
 155   TARGET_HAVE_CTORS_DTORS                       \
 156 }