gcc/target-def.h

   1 /* Default initializers for a generic GCC target.
   2    Copyright (C) 2001-2022 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 3, 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; see the file COPYING3.  If not see
  16    <http://www.gnu.org/licenses/>.
  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.def 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 #define TARGET_ASM_ALIGNED_HI_OP "\t.short\t"
  33 #define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
  34 #define TARGET_ASM_ALIGNED_DI_OP NULL
  35 #define TARGET_ASM_ALIGNED_TI_OP NULL
  36
  37 /* GAS and SYSV4 assemblers accept these.  */
  38 #if defined (OBJECT_FORMAT_ELF)
  39 #define TARGET_ASM_UNALIGNED_HI_OP "\t.2byte\t"
  40 #define TARGET_ASM_UNALIGNED_SI_OP "\t.4byte\t"
  41 #define TARGET_ASM_UNALIGNED_DI_OP "\t.8byte\t"
  42 #define TARGET_ASM_UNALIGNED_TI_OP NULL
  43 #else
  44 #define TARGET_ASM_UNALIGNED_HI_OP NULL
  45 #define TARGET_ASM_UNALIGNED_SI_OP NULL
  46 #define TARGET_ASM_UNALIGNED_DI_OP NULL
  47 #define TARGET_ASM_UNALIGNED_TI_OP NULL
  48 #endif /* OBJECT_FORMAT_ELF */
  49
  50 /* There is no standard way to handle P{S,D,T}Imode, targets must implement them
  51    if required.  */
  52 #define TARGET_ASM_ALIGNED_PSI_OP NULL
  53 #define TARGET_ASM_UNALIGNED_PSI_OP NULL
  54 #define TARGET_ASM_ALIGNED_PDI_OP NULL
  55 #define TARGET_ASM_UNALIGNED_PDI_OP NULL
  56 #define TARGET_ASM_ALIGNED_PTI_OP NULL
  57 #define TARGET_ASM_UNALIGNED_PTI_OP NULL
  58
  59 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
  60 # ifdef CTORS_SECTION_ASM_OP
  61 #  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
  62 # else
  63 #  ifdef TARGET_ASM_NAMED_SECTION
  64 #   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
  65 #  else
  66 #   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
  67 #  endif
  68 # endif
  69 #endif
  70
  71 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
  72 # ifdef DTORS_SECTION_ASM_OP
  73 #  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
  74 # else
  75 #  ifdef TARGET_ASM_NAMED_SECTION
  76 #   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
  77 #  else
  78 #   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
  79 #  endif
  80 # endif
  81 #endif
  82
  83 #if !defined(TARGET_HAVE_CTORS_DTORS)
  84 # if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
  85 # define TARGET_HAVE_CTORS_DTORS true
  86 # endif
  87 #endif
  88
  89 #ifndef TARGET_TERMINATE_DW2_EH_FRAME_INFO
  90 #ifdef EH_FRAME_SECTION_NAME
  91 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
  92 #endif
  93 #endif
  94
  95 #if !defined(TARGET_ASM_OUTPUT_ANCHOR) && !defined(ASM_OUTPUT_DEF)
  96 #define TARGET_ASM_OUTPUT_ANCHOR NULL
  97 #endif
  98
  99 #define TARGET_ASM_ALIGNED_INT_OP                               \
 100                        {TARGET_ASM_ALIGNED_HI_OP,               \
 101                         TARGET_ASM_ALIGNED_PSI_OP,              \
 102                         TARGET_ASM_ALIGNED_SI_OP,               \
 103                         TARGET_ASM_ALIGNED_PDI_OP,              \
 104                         TARGET_ASM_ALIGNED_DI_OP,               \
 105                         TARGET_ASM_ALIGNED_PTI_OP,              \
 106                         TARGET_ASM_ALIGNED_TI_OP}
 107
 108 #define TARGET_ASM_UNALIGNED_INT_OP                             \
 109                        {TARGET_ASM_UNALIGNED_HI_OP,             \
 110                         TARGET_ASM_UNALIGNED_PSI_OP,            \
 111                         TARGET_ASM_UNALIGNED_SI_OP,             \
 112                         TARGET_ASM_UNALIGNED_PDI_OP,            \
 113                         TARGET_ASM_UNALIGNED_DI_OP,             \
 114                         TARGET_ASM_UNALIGNED_PTI_OP,            \
 115                         TARGET_ASM_UNALIGNED_TI_OP}
 116
 117 #if !defined (TARGET_FUNCTION_INCOMING_ARG)
 118 #define TARGET_FUNCTION_INCOMING_ARG TARGET_FUNCTION_ARG
 119 #endif
 120
 121 #include "target-hooks-def.h"
 122
 123 #include "hooks.h"
 124 #include "targhooks.h"
 125 #include "insn-target-def.h"