gcc/config/arm/coff.h

   1 /* Definitions of target machine for GNU compiler.
   2    For ARM with COFF object format.
   3    Copyright (C) 1995-2014 Free Software Foundation, Inc.
   4    Contributed by Doug Evans (devans@cygnus.com).
   5
   6    This file is part of GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 3, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING3.  If not see
  20    <http://www.gnu.org/licenses/>.  */
  21
  22 /* Note - it is important that this definition matches the one in tcoff.h.  */
  23 #undef  USER_LABEL_PREFIX
  24 #define USER_LABEL_PREFIX "_"
  25
  26 \f
  27 /* Run-time Target Specification.  */
  28 #undef  TARGET_DEFAULT_FLOAT_ABI
  29 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
  30
  31 #undef  TARGET_DEFAULT
  32 #define TARGET_DEFAULT (MASK_APCS_FRAME)
  33
  34 #ifndef MULTILIB_DEFAULTS
  35 #define MULTILIB_DEFAULTS \
  36   { "marm", "mlittle-endian", "mfloat-abi=soft", "mno-thumb-interwork" }
  37 #endif
  38 \f
  39 /* This is COFF, but prefer stabs.  */
  40 #define SDB_DEBUGGING_INFO 1
  41
  42 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  43
  44 \f
  45 #define TARGET_ASM_FILE_START_APP_OFF true
  46
  47 /* Switch into a generic section.  */
  48 #define TARGET_ASM_NAMED_SECTION  default_coff_asm_named_section
  49 \f
  50 /* Support the ctors/dtors and other sections.  */
  51
  52 #undef INIT_SECTION_ASM_OP
  53
  54 /* Define this macro if jump tables (for `tablejump' insns) should be
  55    output in the text section, along with the assembler instructions.
  56    Otherwise, the readonly data section is used.  */
  57 /* We put ARM and Thumb-2 jump tables in the text section, because it makes
  58    the code more efficient, but for Thumb-1 it's better to put them out of
  59    band unless we are generating compressed tables.  */
  60 #define JUMP_TABLES_IN_TEXT_SECTION                                     \
  61    (TARGET_32BIT || (TARGET_THUMB && (optimize_size || flag_pic)))
  62
  63 #undef  READONLY_DATA_SECTION_ASM_OP
  64 #define READONLY_DATA_SECTION_ASM_OP    "\t.section .rdata"
  65 #undef  CTORS_SECTION_ASM_OP
  66 #define CTORS_SECTION_ASM_OP    "\t.section .ctors,\"x\""
  67 #undef  DTORS_SECTION_ASM_OP
  68 #define DTORS_SECTION_ASM_OP    "\t.section .dtors,\"x\""
  69 \f
  70 /* Support the ctors/dtors sections for g++.  */
  71
  72 /* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script.  */
  73 #define CTOR_LISTS_DEFINED_EXTERNALLY
  74
  75 #undef DO_GLOBAL_CTORS_BODY
  76 #undef DO_GLOBAL_DTORS_BODY
  77
  78 /* The ARM development system defines __main.  */
  79 #define NAME__MAIN  "__gccmain"
  80 #define SYMBOL__MAIN __gccmain
  81
  82 #define SUPPORTS_INIT_PRIORITY 0