gcc/config/mcore/mcore-pe.h

   1 /* Definitions of target machine for GNU compiler, for MCore using COFF/PE.
   2    Copyright (C) 1994, 1999, 2000, 2002 Free Software Foundation, Inc.
   3    Contributed by Michael Tiemann (tiemann@cygnus.com).
   4
   5 This file is part of GNU CC.
   6
   7 GNU CC is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2, or (at your option)
  10 any later version.
  11
  12 GNU CC is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with GNU CC; see the file COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22 /* Run-time Target Specification.  */
  23 #define TARGET_VERSION fputs (" (MCORE/pe)", stderr)
  24
  25 #define SUBTARGET_CPP_PREDEFINES " -D__pe__"
  26
  27 /* The MCore ABI says that bitfields are unsigned by default.  */
  28 /* The EPOC C++ environment does not support exceptions.  */
  29 #define CC1_SPEC "-funsigned-bitfields %{!DIN_GCC:-fno-rtti} %{!DIN_GCC:-fno-exceptions}"
  30
  31 #include "svr3.h"
  32 #include "mcore/mcore.h"
  33 #include "dbxcoff.h"
  34
  35 #undef  SDB_DEBUGGING_INFO
  36 #define DBX_DEBUGGING_INFO 1
  37
  38 /* Computed in toplev.c.  */
  39 #undef  PREFERRED_DEBUGGING_TYPE
  40
  41 /* Lay out additional 'sections' where we place things like code
  42    and readonly data. This gets them out of default places.  */
  43
  44 #define SUBTARGET_SWITCH_SECTIONS               \
  45   case in_drectve: drectve_section (); break;
  46
  47 #define DRECTVE_SECTION_ASM_OP  "\t.section .drectve"
  48 #define READONLY_DATA_SECTION_ASM_OP    "\t.section .rdata"
  49
  50 #define SUBTARGET_EXTRA_SECTIONS in_drectve
  51
  52 #define SUBTARGET_EXTRA_SECTION_FUNCTIONS \
  53   DRECTVE_SECTION_FUNCTION
  54
  55 #define DRECTVE_SECTION_FUNCTION                                \
  56 void                                                            \
  57 drectve_section ()                                              \
  58 {                                                               \
  59   if (in_section != in_drectve)                                 \
  60     {                                                           \
  61       fprintf (asm_out_file, "%s\n", DRECTVE_SECTION_ASM_OP);   \
  62       in_section = in_drectve;                                  \
  63     }                                                           \
  64 }
  65
  66 #define MCORE_EXPORT_NAME(STREAM, NAME)                 \
  67   do                                                    \
  68     {                                                   \
  69       drectve_section ();                               \
  70       fprintf (STREAM, "\t.ascii \" -export:%s\"\n",    \
  71                (* targetm.strip_name_encoding) (NAME)); \
  72     }                                                   \
  73   while (0);
  74
  75 /* Output the label for an initialized variable.  */
  76 #undef  ASM_DECLARE_OBJECT_NAME
  77 #define ASM_DECLARE_OBJECT_NAME(STREAM, NAME, DECL)             \
  78   do                                                            \
  79     {                                                           \
  80       if (mcore_dllexport_name_p (NAME))                        \
  81         {                                                       \
  82           enum in_section save_section = in_section;            \
  83           MCORE_EXPORT_NAME (STREAM, NAME);                     \
  84           switch_to_section (save_section, (DECL));             \
  85         }                                                       \
  86       ASM_OUTPUT_LABEL ((STREAM), (NAME));                      \
  87     }                                                           \
  88   while (0)
  89
  90 /* Output a function label definition.  */
  91 #define ASM_DECLARE_FUNCTION_NAME(STREAM, NAME, DECL)           \
  92   do                                                            \
  93     {                                                           \
  94       if (mcore_dllexport_name_p (NAME))                        \
  95         {                                                       \
  96           MCORE_EXPORT_NAME (STREAM, NAME);                     \
  97           function_section (DECL);                              \
  98         }                                                       \
  99       ASM_OUTPUT_LABEL ((STREAM), (NAME));                      \
 100     }                                                           \
 101   while (0);
 102
 103 #undef  ASM_FILE_START
 104 #define ASM_FILE_START(STREAM)                                  \
 105   do                                                            \
 106     {                                                           \
 107       fprintf (STREAM, "%s Generated by gcc %s for MCore/pe\n", \
 108            ASM_COMMENT_START, version_string);                  \
 109       output_file_directive ((STREAM), main_input_filename);    \
 110     }                                                           \
 111   while (0)
 112
 113 #undef  ASM_OUTPUT_SOURCE_LINE
 114 #define ASM_OUTPUT_SOURCE_LINE(FILE, LINE)                                \
 115   {                                                                       \
 116     if (write_symbols == DBX_DEBUG)                                       \
 117       {                                                                   \
 118         static int sym_lineno = 1;                                        \
 119         char buffer[256];                                                 \
 120                                                                           \
 121         ASM_GENERATE_INTERNAL_LABEL (buffer, "LM", sym_lineno);           \
 122         fprintf (FILE, ".stabn 68,0,%d,", LINE);                          \
 123         assemble_name (FILE, buffer);                                     \
 124         putc ('-', FILE);                                                 \
 125         assemble_name (FILE,                                              \
 126                    XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0)); \
 127         putc ('\n', FILE);                                                \
 128         ASM_OUTPUT_INTERNAL_LABEL (FILE, "LM", sym_lineno);               \
 129         sym_lineno ++;                                                    \
 130       }                                                                   \
 131   }
 132
 133 #define STARTFILE_SPEC "crt0.o%s"
 134 #define ENDFILE_SPEC  "%{!mno-lsim:-lsim}"
 135
 136 /* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script.  */
 137 #define CTOR_LISTS_DEFINED_EXTERNALLY
 138
 139 #undef DO_GLOBAL_CTORS_BODY
 140 #undef DO_GLOBAL_DTORS_BODY
 141 #undef INIT_SECTION_ASM_OP
 142 #undef DTORS_SECTION_ASM_OP
 143
 144 #define SUPPORTS_ONE_ONLY 1
 145
 146 /* Switch into a generic section.  */
 147 #undef TARGET_ASM_NAMED_SECTION
 148 #define TARGET_ASM_NAMED_SECTION  default_pe_asm_named_section