gcc/config/i386/beos-elf.h

   1 /* Definitions for Intel x86 running BeOS
   2    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004, 2007
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GCC.
   6
   7 GCC 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 3, or (at your option)
  10 any later version.
  11
  12 GCC 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 GCC; see the file COPYING3.  If not see
  19 <http://www.gnu.org/licenses/>.  */
  20
  21
  22 #define TARGET_VERSION fprintf (stderr, " (i386 BeOS/ELF)");
  23
  24 /* Change debugging to Dwarf2.  */
  25 #undef PREFERRED_DEBUGGING_TYPE
  26 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  27
  28 /* The SVR4 ABI for the i386 says that records and unions are returned
  29    in memory.  */
  30 #undef DEFAULT_PCC_STRUCT_RETURN
  31 #define DEFAULT_PCC_STRUCT_RETURN 1
  32
  33 #undef ASM_COMMENT_START
  34 #define ASM_COMMENT_START " #"
  35
  36 #undef DBX_REGISTER_NUMBER
  37 #define DBX_REGISTER_NUMBER(n) \
  38   (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
  39
  40 /* Output assembler code to FILE to increment profiler label # LABELNO
  41    for profiling a function entry.  */
  42
  43 #undef MCOUNT_NAME
  44 #define MCOUNT_NAME "mcount"
  45
  46 #undef SIZE_TYPE
  47 #define SIZE_TYPE "long unsigned int"
  48
  49 #undef PTRDIFF_TYPE
  50 #define PTRDIFF_TYPE "long int"
  51
  52 #undef WCHAR_TYPE
  53 #define WCHAR_TYPE "short unsigned int"
  54
  55 #undef WCHAR_TYPE_SIZE
  56 #define WCHAR_TYPE_SIZE 16
  57
  58 #define TARGET_DECLSPEC 1
  59
  60 #define TARGET_OS_CPP_BUILTINS()                                        \
  61   do                                                                    \
  62     {                                                                   \
  63         builtin_define ("__BEOS__");                                    \
  64         builtin_define ("__INTEL__");                                   \
  65         builtin_define ("_X86_");                                       \
  66         builtin_define ("__stdcall=__attribute__((__stdcall__))");      \
  67         builtin_define ("__cdecl=__attribute__((__cdecl__))");          \
  68         builtin_assert ("system=beos");                                 \
  69     }                                                                   \
  70   while (0)
  71
  72 /* BeOS uses lots of multichars, so don't warn about them unless the
  73    user explicitly asks for the warnings with -Wmultichar.  Note that
  74    CC1_SPEC is used for both cc1 and cc1plus.  */
  75
  76 #undef CC1_SPEC
  77 #define CC1_SPEC "%{!no-fpic:%{!fno-pic:%{!fno-pie:%{!fpie:%{!fPIC:%{!fPIE:-fpic}}}}}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
  78
  79 #undef CC1PLUS_SPEC
  80 #define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"
  81
  82 /* Provide a LINK_SPEC appropriate for BeOS.  Here we provide support
  83    for the special GCC options -static and -shared, which allow us to
  84    link things in one of these three modes by applying the appropriate
  85    combinations of options at link-time.  */
  86
  87 /* If ELF is the default format, we should not use /lib/elf.  */
  88
  89 #undef  LINK_SPEC
  90 #define LINK_SPEC "%{!o*:-o %b} -m elf_i386_be -shared -Bsymbolic %{nostart:-e 0}"
  91
  92 /* Provide start and end file specs appropriate to glibc.  */
  93
  94 /* LIB_SPEC for BeOS */
  95 #undef LIB_SPEC
  96 #define LIB_SPEC "-lnet -lroot"
  97
  98 /* gcc runtime lib is built into libroot.so on BeOS */
  99 /* ??? This is gonna be lovely when the next release of gcc has
 100    some new symbol in, so that links start failing.  */
 101 #undef LIBGCC_SPEC
 102 #define LIBGCC_SPEC ""
 103
 104 #undef  STARTFILE_SPEC
 105 #define STARTFILE_SPEC "crti.o%s crtbegin.o%s %{!nostart:start_dyn.o%s} init_term_dyn.o%s %{p:i386-mcount.o%s}"
 106
 107 #undef  ENDFILE_SPEC
 108 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
 109
 110 /* A C statement (sans semicolon) to output to the stdio stream
 111    FILE the assembler definition of uninitialized global DECL named
 112    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 113    Try to use asm_output_aligned_bss to implement this macro.  */
 114
 115 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 116   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 117
 118 /* A C statement to output to the stdio stream FILE an assembler
 119    command to advance the location counter to a multiple of 1<<LOG
 120    bytes if it is within MAX_SKIP bytes.
 121
 122    This is used to align code labels according to Intel recommendations.  */
 123
 124 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
 125 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
 126   if ((LOG)!=0) \
 127     if ((MAX_SKIP)==0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
 128     else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP))
 129 #endif
 130
 131 /* For native compiler, use standard BeOS include file search paths
 132    rooted in /boot/develop/headers.  For a cross compiler, don't
 133    expect the host to use the BeOS directory scheme, and instead look
 134    for the BeOS include files relative to TOOL_INCLUDE_DIR.  Yes, we
 135    use ANSI string concatenation here (FIXME) */
 136
 137 #ifndef CROSS_DIRECTORY_STRUCTURE
 138 #undef INCLUDE_DEFAULTS
 139 #define INCLUDE_DEFAULTS \
 140     { \
 141     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 142     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 143     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 144     { "/boot/develop/headers/be/add-ons/graphics", 0, 0, 0 },\
 145     { "/boot/develop/headers/be/devel", 0, 0, 0 },\
 146     { "/boot/develop/headers/be/translation", 0, 0, 0 },\
 147     { "/boot/develop/headers/be/mail", 0, 0, 0 },\
 148     { "/boot/develop/headers/gnu", 0, 0, 0 },\
 149     { "/boot/develop/headers/be/drivers", 0, 0, 0 },\
 150     { "/boot/develop/headers/be/opengl", 0, 0, 0 },\
 151     { "/boot/develop/headers/be/game", 0, 0, 0 },\
 152     { "/boot/develop/headers/be/support", 0, 0, 0 },\
 153     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 154     { "/boot/develop/headers/be/kernel", 0, 0, 0 },\
 155     { "/boot/develop/headers/be/net", 0, 0, 0 },\
 156     { "/boot/develop/headers/be/midi", 0, 0, 0 },\
 157     { "/boot/develop/headers/be/midi2", 0, 0, 0 },\
 158     { "/boot/develop/headers/be/media", 0, 0, 0 },\
 159     { "/boot/develop/headers/be/interface", 0, 0, 0 },\
 160     { "/boot/develop/headers/be/device", 0, 0, 0 },\
 161     { "/boot/develop/headers/be/app", 0, 0, 0 },\
 162     { "/boot/develop/headers/be/precompiled", 0, 0, 0 },\
 163     { "/boot/develop/headers/be/add-ons/input_server", 0, 0, 0 },\
 164     { "/boot/develop/headers/be/add-ons/net_server", 0, 0, 0 },\
 165     { "/boot/develop/headers/be/add-ons/screen_saver", 0, 0, 0 },\
 166     { "/boot/develop/headers/be/add-ons/tracker", 0, 0, 0 },\
 167     { "/boot/develop/headers/be/be_apps/Deskbar", 0, 0, 0 },\
 168     { "/boot/develop/headers/be/be_apps/NetPositive", 0, 0, 0 },\
 169     { "/boot/develop/headers/be/be_apps/Tracker", 0, 0, 0 },\
 170     { "/boot/develop/headers/be/drivers/tty", 0, 0, 0 },\
 171     { "/boot/develop/headers/be/net/netinet", 0, 0, 0 },\
 172     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 173     { "/boot/develop/headers/be", 0, 0, 0 },\
 174     { "/boot/develop/headers/cpp", 0, 0, 0 },\
 175     { "/boot/develop/headers/posix", 0, 0, 0 },\
 176     { "/boot/develop/headers", 0, 0, 0 }, \
 177     { 0, 0, 0, 0 } \
 178     }
 179 #else /* CROSS_DIRECTORY_STRUCTURE */
 180 #undef  INCLUDE_DEFAULTS
 181 #define INCLUDE_DEFAULTS                                \
 182     { \
 183     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 184     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 185     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 186     { CROSS_INCLUDE_DIR "/be/add-ons/graphics", 0, 0, 0 },\
 187     { CROSS_INCLUDE_DIR "/be/devel", 0, 0, 0 },\
 188     { CROSS_INCLUDE_DIR "/be/translation", 0, 0, 0 },\
 189     { CROSS_INCLUDE_DIR "/be/mail", 0, 0, 0 },\
 190     { CROSS_INCLUDE_DIR "/gnu", 0, 0, 0 },\
 191     { CROSS_INCLUDE_DIR "/be/drivers", 0, 0, 0 },\
 192     { CROSS_INCLUDE_DIR "/be/opengl", 0, 0, 0 },\
 193     { CROSS_INCLUDE_DIR "/be/game", 0, 0, 0 },\
 194     { CROSS_INCLUDE_DIR "/be/support", 0, 0, 0 },\
 195     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 196     { CROSS_INCLUDE_DIR "/be/kernel", 0, 0, 0 },\
 197     { CROSS_INCLUDE_DIR "/be/net", 0, 0, 0 },\
 198     { CROSS_INCLUDE_DIR "/be/midi", 0, 0, 0 },\
 199     { CROSS_INCLUDE_DIR "/be/midi2", 0, 0, 0 },\
 200     { CROSS_INCLUDE_DIR "/be/media", 0, 0, 0 },\
 201     { CROSS_INCLUDE_DIR "/be/interface", 0, 0, 0 },\
 202     { CROSS_INCLUDE_DIR "/be/device", 0, 0, 0 },\
 203     { CROSS_INCLUDE_DIR "/be/app", 0, 0, 0 },\
 204     { CROSS_INCLUDE_DIR "/be/precompiled", 0, 0, 0 },\
 205     { CROSS_INCLUDE_DIR "/be/add-ons/input_server", 0, 0, 0 },\
 206     { CROSS_INCLUDE_DIR "/be/add-ons/net_server", 0, 0, 0 },\
 207     { CROSS_INCLUDE_DIR "/be/add-ons/screen_saver", 0, 0, 0 },\
 208     { CROSS_INCLUDE_DIR "/be/add-ons/tracker", 0, 0, 0 },\
 209     { CROSS_INCLUDE_DIR "/be/be_apps/Deskbar", 0, 0, 0 },\
 210     { CROSS_INCLUDE_DIR "/be/be_apps/NetPositive", 0, 0, 0 },\
 211     { CROSS_INCLUDE_DIR "/be/be_apps/Tracker", 0, 0, 0 },\
 212     { CROSS_INCLUDE_DIR "/be/drivers/tty", 0, 0, 0 },\
 213     { CROSS_INCLUDE_DIR "/be/net/netinet", 0, 0, 0 },\
 214     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 215     { CROSS_INCLUDE_DIR "/be", 0, 0, 0 },\
 216     { CROSS_INCLUDE_DIR "/cpp", 0, 0, 0 },\
 217     { CROSS_INCLUDE_DIR "/posix", 0, 0, 0 },\
 218     { CROSS_INCLUDE_DIR , 0, 0, 0 }, \
 219     { 0, 0, 0, 0 } \
 220     }
 221 #endif
 222
 223 /* Whee.  LIBRARY_PATH is Be's LD_LIBRARY_PATH, which of course will
 224    cause nasty problems if we override it.  */
 225 #define LIBRARY_PATH_ENV        "BELIBRARIES"
 226
 227 /* BeOS doesn't have a separate math library.  */
 228 #define MATH_LIBRARY ""
 229
 230 /* BeOS headers are C++-aware (and often use C++).  */
 231 #define NO_IMPLICIT_EXTERN_C
 232
 233 /* BeOS uses explicit import from shared libraries.  */
 234 #define MULTIPLE_SYMBOL_SPACES 1