gcc/config/arm/coff.h

   1 /* Definitions of target machine for GNU compiler.
   2    For ARM with COFF object format.
   3    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2002, 2003, 2004, 2005,
   4    2007 Free Software Foundation, Inc.
   5    Contributed by Doug Evans (devans@cygnus.com).
   6
   7    This file is part of GCC.
   8
   9    GCC is free software; you can redistribute it and/or modify it
  10    under the terms of the GNU General Public License as published
  11    by the Free Software Foundation; either version 3, or (at your
  12    option) any later version.
  13
  14    GCC is distributed in the hope that it will be useful, but WITHOUT
  15    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  16    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  17    License for more details.
  18
  19    You should have received a copy of the GNU General Public License
  20    along with GCC; see the file COPYING3.  If not see
  21    <http://www.gnu.org/licenses/>.  */
  22
  23 /* Note - it is important that this definition matches the one in tcoff.h.  */
  24 #undef  USER_LABEL_PREFIX
  25 #define USER_LABEL_PREFIX "_"
  26
  27 \f
  28 /* Run-time Target Specification.  */
  29 #undef  TARGET_VERSION
  30 #define TARGET_VERSION fputs (" (ARM/coff)", stderr)
  31
  32 #undef  TARGET_DEFAULT_FLOAT_ABI
  33 #define TARGET_DEFAULT_FLOAT_ABI ARM_FLOAT_ABI_SOFT
  34
  35 #undef  TARGET_DEFAULT
  36 #define TARGET_DEFAULT (MASK_APCS_FRAME)
  37
  38 #ifndef MULTILIB_DEFAULTS
  39 #define MULTILIB_DEFAULTS \
  40   { "marm", "mlittle-endian", "msoft-float", "mno-thumb-interwork" }
  41 #endif
  42 \f
  43 /* This is COFF, but prefer stabs.  */
  44 #define SDB_DEBUGGING_INFO 1
  45
  46 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
  47
  48 \f
  49 #define TARGET_ASM_FILE_START_APP_OFF true
  50
  51 /* Switch into a generic section.  */
  52 #define TARGET_ASM_NAMED_SECTION  default_coff_asm_named_section
  53 \f
  54 /* Support the ctors/dtors and other sections.  */
  55
  56 #undef INIT_SECTION_ASM_OP
  57
  58 /* Define this macro if jump tables (for `tablejump' insns) should be
  59    output in the text section, along with the assembler instructions.
  60    Otherwise, the readonly data section is used.  */
  61 /* We put ARM and Thumb-2 jump tables in the text section, because it makes
  62    the code more efficient, but for Thumb-1 it's better to put them out of
  63    band unless we are generating compressed tables.  */
  64 #define JUMP_TABLES_IN_TEXT_SECTION                                     \
  65    (TARGET_32BIT || (TARGET_THUMB && (optimize_size || flag_pic)))
  66
  67 #undef  READONLY_DATA_SECTION_ASM_OP
  68 #define READONLY_DATA_SECTION_ASM_OP    "\t.section .rdata"
  69 #undef  CTORS_SECTION_ASM_OP
  70 #define CTORS_SECTION_ASM_OP    "\t.section .ctors,\"x\""
  71 #undef  DTORS_SECTION_ASM_OP
  72 #define DTORS_SECTION_ASM_OP    "\t.section .dtors,\"x\""
  73 \f
  74 /* Support the ctors/dtors sections for g++.  */
  75
  76 /* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script.  */
  77 #define CTOR_LISTS_DEFINED_EXTERNALLY
  78
  79 #undef DO_GLOBAL_CTORS_BODY
  80 #undef DO_GLOBAL_DTORS_BODY
  81
  82 /* The ARM development system defines __main.  */
  83 #define NAME__MAIN  "__gccmain"
  84 #define SYMBOL__MAIN __gccmain
  85
  86 #define SUPPORTS_INIT_PRIORITY 0