gcc/config/i386/netware.h

   1 /* Core target definitions for GCC for Intel 80x86 running Netware.
   2    and using dwarf for the debugging format.
   3    Copyright (C) 1993, 1994, 2004, 2007, 2008 Free Software Foundation, Inc.
   4
   5    Written by David V. Henkel-Wallace (gumby@cygnus.com)
   6
   7 This file is part of GCC.
   8
   9 GCC is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 3, or (at your option)
  12 any later version.
  13
  14 GCC is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public 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 #define TARGET_VERSION fprintf (stderr, " (x86 NetWare)");
  24
  25 #undef  CPP_SPEC
  26 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
  27
  28 #undef  LIB_SPEC
  29 #define LIB_SPEC ""
  30
  31 /* Kinda useless, but what the hell */
  32 #undef  LINK_SPEC
  33 #define LINK_SPEC "%{h*} %{V} %{v:%{!V:-V}} \
  34                    %{b} \
  35                    %{Qy:} %{!Qn:-Qy}"
  36
  37 #undef  STARTFILE_SPEC
  38 #define STARTFILE_SPEC ""
  39
  40 #undef  ENDFILE_SPEC
  41 #define ENDFILE_SPEC ""
  42
  43 #undef  RELATIVE_PREFIX_NOT_LINKDIR
  44 #undef  LIBGCC_SPEC
  45
  46 #define TARGET_OS_CPP_BUILTINS()                                        \
  47   do                                                                    \
  48     {                                                                   \
  49         builtin_define_std ("IAPX386");                                 \
  50         builtin_define ("_M_IX86=300");                                 \
  51         builtin_define ("__netware__");                                 \
  52         builtin_assert ("system=netware");                              \
  53         builtin_define ("__ELF__");                                     \
  54         builtin_define ("__cdecl=__attribute__((__cdecl__))");          \
  55         builtin_define ("__stdcall=__attribute__((__stdcall__))");      \
  56         builtin_define ("__fastcall=__attribute__((__fastcall__))");    \
  57         if (!flag_iso)                                                  \
  58           {                                                             \
  59             builtin_define ("_cdecl=__attribute__((__cdecl__))");       \
  60             builtin_define ("_stdcall=__attribute__((__stdcall__))");   \
  61             builtin_define ("_fastcall=__attribute__((__fastcall__))"); \
  62           }                                                             \
  63     }                                                                   \
  64   while (0)
  65
  66 #undef TARGET_CPU_DEFAULT
  67 #define TARGET_CPU_DEFAULT TARGET_CPU_DEFAULT_pentium4
  68
  69 /* By default, target has a 80387, uses IEEE compatible arithmetic,
  70    returns float values in the 387, and uses MSVC bit field layout. */
  71 #undef TARGET_SUBTARGET_DEFAULT
  72 #define TARGET_SUBTARGET_DEFAULT (MASK_80387 | MASK_IEEE_FP | \
  73         MASK_FLOAT_RETURNS | MASK_ALIGN_DOUBLE | MASK_MS_BITFIELD_LAYOUT)
  74
  75 /* Don't allow flag_pic to propagate since invalid relocations will
  76    result otherwise.  */
  77 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
  78 do {                                                                    \
  79   if (flag_pic)                                                         \
  80     {                                                                   \
  81       error ("-fPIC and -fpic are not supported for this target");      \
  82       flag_pic = 0;                                                     \
  83     }                                                                   \
  84 } while (0)
  85
  86 #undef MATH_LIBRARY
  87 #define MATH_LIBRARY ""
  88
  89 /* Align doubles and long-longs in structures on qword boundaries.  */
  90 #undef BIGGEST_FIELD_ALIGNMENT
  91 #define BIGGEST_FIELD_ALIGNMENT 64
  92
  93 #undef DEFAULT_PCC_STRUCT_RETURN
  94 #define DEFAULT_PCC_STRUCT_RETURN 0
  95
  96 /* Implicit arguments pointing to aggregate return values are to be
  97    removed by the caller.  */
  98 #undef KEEP_AGGREGATE_RETURN_POINTER
  99 #define KEEP_AGGREGATE_RETURN_POINTER 1
 100
 101 #undef ASM_COMMENT_START
 102 #define ASM_COMMENT_START "#"
 103
 104 #undef DBX_REGISTER_NUMBER
 105 #define DBX_REGISTER_NUMBER(n) (svr4_dbx_register_map[n])
 106
 107 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop).  */
 108 #define HANDLE_PRAGMA_PACK_PUSH_POP
 109
 110 /* Default structure packing is 1-byte. */
 111 #define TARGET_DEFAULT_PACK_STRUCT 1
 112
 113 #undef WCHAR_TYPE
 114 #define WCHAR_TYPE "short unsigned int"
 115
 116 #undef WCHAR_TYPE_SIZE
 117 #define WCHAR_TYPE_SIZE 16
 118
 119 #undef WINT_TYPE
 120 #define WINT_TYPE "int"
 121
 122 /* A C statement (sans semicolon) to output to the stdio stream
 123    FILE the assembler definition of uninitialized global DECL named
 124    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 125    Try to use asm_output_aligned_bss to implement this macro.  */
 126
 127 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 128   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 129
 130 /* Handle special EH pointer encodings.  Absolute, pc-relative, and
 131    indirect are handled automatically.  */
 132 #define ASM_MAYBE_OUTPUT_ENCODED_ADDR_RTX(FILE, ENCODING, SIZE, ADDR, DONE) \
 133   do {                                                                  \
 134     if ((SIZE) == 4 && ((ENCODING) & 0x70) == DW_EH_PE_datarel)         \
 135       {                                                                 \
 136         fputs (ASM_LONG, FILE);                 \
 137         assemble_name (FILE, XSTR (ADDR, 0));                           \
 138         fputs (((ENCODING) & DW_EH_PE_indirect ? "@GOT" : "@GOTOFF"), FILE); \
 139         goto DONE;                                                      \
 140       }                                                                 \
 141   } while (0)
 142
 143 /* there is no TLS support in NLMs/on NetWare */
 144 #undef HAVE_AS_TLS
 145
 146 #define HAS_INIT_SECTION
 147 #undef  INIT_SECTION_ASM_OP
 148
 149 #define CTOR_LISTS_DEFINED_EXTERNALLY
 150
 151 #undef  READONLY_DATA_SECTION_ASM_OP
 152 #define READONLY_DATA_SECTION_ASM_OP    ".section\t.rodata"
 153
 154 /* Define this macro if references to a symbol must be treated
 155    differently depending on something about the variable or
 156    function named by the symbol (such as what section it is in).
 157
 158    On i386 running NetWare, modify the assembler name with an underscore (_)
 159    or atsign (@) prefix and a suffix consisting of an atsign (@) followed by
 160    a string of digits that represents the number of bytes of arguments passed
 161    to the function, if it has the attribute STDCALL. Alternatively, if it has
 162    the REGPARM attribute, prefix it with an underscore (_), a digit
 163    representing the number of registers used, and an atsign (@). */
 164 void i386_nlm_encode_section_info (tree, rtx, int);
 165 extern tree i386_nlm_mangle_decl_assembler_name (tree, tree);
 166 const char *i386_nlm_strip_name_encoding (const char *);
 167 #define SUBTARGET_ENCODE_SECTION_INFO  i386_nlm_encode_section_info
 168 #define TARGET_MANGLE_DECL_ASSEMBLER_NAME i386_nlm_mangle_decl_assembler_name
 169 #undef  TARGET_STRIP_NAME_ENCODING
 170 #define TARGET_STRIP_NAME_ENCODING  i386_nlm_strip_name_encoding