gcc/config/i386/beos-elf.h

   1 /* Definitions for Intel x86 running BeOS
   2    Copyright (C) 1998, 1999, 2000, 2001, 2002, 2004
   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 2, 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 COPYING.  If not, write to
  19 the Free Software Foundation, 59 Temple Place - Suite 330,
  20 Boston, MA 02111-1307, USA.  */
  21
  22
  23 #define TARGET_VERSION fprintf (stderr, " (i386 BeOS/ELF)");
  24
  25 /* Change debugging to Dwarf2.  */
  26 #undef PREFERRED_DEBUGGING_TYPE
  27 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
  28
  29 /* The SVR4 ABI for the i386 says that records and unions are returned
  30    in memory.  */
  31 #undef DEFAULT_PCC_STRUCT_RETURN
  32 #define DEFAULT_PCC_STRUCT_RETURN 1
  33
  34 #undef ASM_COMMENT_START
  35 #define ASM_COMMENT_START " #"
  36
  37 #undef DBX_REGISTER_NUMBER
  38 #define DBX_REGISTER_NUMBER(n) \
  39   (TARGET_64BIT ? dbx64_register_map[n] : svr4_dbx_register_map[n])
  40
  41 /* Output assembler code to FILE to increment profiler label # LABELNO
  42    for profiling a function entry.  */
  43
  44 #undef MCOUNT_NAME
  45 #define MCOUNT_NAME "mcount"
  46
  47 #undef SIZE_TYPE
  48 #define SIZE_TYPE "long unsigned int"
  49
  50 #undef PTRDIFF_TYPE
  51 #define PTRDIFF_TYPE "long int"
  52
  53 #undef WCHAR_TYPE
  54 #define WCHAR_TYPE "short unsigned int"
  55
  56 #undef WCHAR_TYPE_SIZE
  57 #define WCHAR_TYPE_SIZE 16
  58
  59 #define TARGET_DECLSPEC 1
  60
  61 #define TARGET_OS_CPP_BUILTINS()                                        \
  62   do                                                                    \
  63     {                                                                   \
  64         builtin_define ("__BEOS__");                                    \
  65         builtin_define ("__INTEL__");                                   \
  66         builtin_define ("_X86_");                                       \
  67         builtin_define ("__stdcall=__attribute__((__stdcall__))");      \
  68         builtin_define ("__cdecl=__attribute__((__cdecl__))");          \
  69         builtin_assert ("system=beos");                                 \
  70         if (flag_pic)                                                   \
  71           {                                                             \
  72             builtin_define ("__PIC__");                                 \
  73             builtin_define ("__pic__");                                 \
  74           }                                                             \
  75     }                                                                   \
  76   while (0)
  77
  78 /* BeOS uses lots of multichars, so don't warn about them unless the
  79    user explicitly asks for the warnings with -Wmultichar.  Note that
  80    CC1_SPEC is used for both cc1 and cc1plus.  */
  81
  82 #undef CC1_SPEC
  83 #define CC1_SPEC "%{!no-fpic:%{!fno-pic:%{!fno-pie:%{!fpie:%{!fPIC:%{!fPIE:-fpic}}}}}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
  84
  85 #undef CC1PLUS_SPEC
  86 #define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"
  87
  88 /* Provide a LINK_SPEC appropriate for BeOS.  Here we provide support
  89    for the special GCC options -static and -shared, which allow us to
  90    link things in one of these three modes by applying the appropriate
  91    combinations of options at link-time.  */
  92
  93 /* If ELF is the default format, we should not use /lib/elf.  */
  94
  95 #undef  LINK_SPEC
  96 #define LINK_SPEC "%{!o*:-o %b} -m elf_i386_be -shared -Bsymbolic %{nostart:-e 0}"
  97
  98 /* Provide start and end file specs appropriate to glibc.  */
  99
 100 /* LIB_SPEC for BeOS */
 101 #undef LIB_SPEC
 102 #define LIB_SPEC "-lnet -lroot"
 103
 104 /* gcc runtime lib is built into libroot.so on BeOS */
 105 /* ??? This is gonna be lovely when the next release of gcc has
 106    some new symbol in, so that links start failing.  */
 107 #undef LIBGCC_SPEC
 108 #define LIBGCC_SPEC ""
 109
 110 #undef  STARTFILE_SPEC
 111 #define STARTFILE_SPEC "crti.o%s crtbegin.o%s %{!nostart:start_dyn.o%s} init_term_dyn.o%s %{p:i386-mcount.o%s}"
 112
 113 #undef  ENDFILE_SPEC
 114 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
 115
 116 /* A C statement (sans semicolon) to output to the stdio stream
 117    FILE the assembler definition of uninitialized global DECL named
 118    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 119    Try to use asm_output_aligned_bss to implement this macro.  */
 120
 121 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 122   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 123
 124 /* A C statement to output to the stdio stream FILE an assembler
 125    command to advance the location counter to a multiple of 1<<LOG
 126    bytes if it is within MAX_SKIP bytes.
 127
 128    This is used to align code labels according to Intel recommendations.  */
 129
 130 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
 131 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
 132   if ((LOG)!=0) \
 133     if ((MAX_SKIP)==0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
 134     else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP))
 135 #endif
 136
 137 /* For native compiler, use standard BeOS include file search paths
 138    rooted in /boot/develop/headers.  For a cross compiler, don't
 139    expect the host to use the BeOS directory scheme, and instead look
 140    for the BeOS include files relative to TOOL_INCLUDE_DIR.  Yes, we
 141    use ANSI string concatenation here (FIXME) */
 142
 143 #ifndef CROSS_COMPILE
 144 #undef INCLUDE_DEFAULTS
 145 #define INCLUDE_DEFAULTS \
 146     { \
 147     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 148     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 149     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 150     { "/boot/develop/headers/be/add-ons/graphics", 0, 0, 0 },\
 151     { "/boot/develop/headers/be/devel", 0, 0, 0 },\
 152     { "/boot/develop/headers/be/translation", 0, 0, 0 },\
 153     { "/boot/develop/headers/be/mail", 0, 0, 0 },\
 154     { "/boot/develop/headers/gnu", 0, 0, 0 },\
 155     { "/boot/develop/headers/be/drivers", 0, 0, 0 },\
 156     { "/boot/develop/headers/be/opengl", 0, 0, 0 },\
 157     { "/boot/develop/headers/be/game", 0, 0, 0 },\
 158     { "/boot/develop/headers/be/support", 0, 0, 0 },\
 159     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 160     { "/boot/develop/headers/be/kernel", 0, 0, 0 },\
 161     { "/boot/develop/headers/be/net", 0, 0, 0 },\
 162     { "/boot/develop/headers/be/midi", 0, 0, 0 },\
 163     { "/boot/develop/headers/be/midi2", 0, 0, 0 },\
 164     { "/boot/develop/headers/be/media", 0, 0, 0 },\
 165     { "/boot/develop/headers/be/interface", 0, 0, 0 },\
 166     { "/boot/develop/headers/be/device", 0, 0, 0 },\
 167     { "/boot/develop/headers/be/app", 0, 0, 0 },\
 168     { "/boot/develop/headers/be/precompiled", 0, 0, 0 },\
 169     { "/boot/develop/headers/be/add-ons/input_server", 0, 0, 0 },\
 170     { "/boot/develop/headers/be/add-ons/net_server", 0, 0, 0 },\
 171     { "/boot/develop/headers/be/add-ons/screen_saver", 0, 0, 0 },\
 172     { "/boot/develop/headers/be/add-ons/tracker", 0, 0, 0 },\
 173     { "/boot/develop/headers/be/be_apps/Deskbar", 0, 0, 0 },\
 174     { "/boot/develop/headers/be/be_apps/NetPositive", 0, 0, 0 },\
 175     { "/boot/develop/headers/be/be_apps/Tracker", 0, 0, 0 },\
 176     { "/boot/develop/headers/be/drivers/tty", 0, 0, 0 },\
 177     { "/boot/develop/headers/be/net/netinet", 0, 0, 0 },\
 178     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 179     { "/boot/develop/headers/be", 0, 0, 0 },\
 180     { "/boot/develop/headers/cpp", 0, 0, 0 },\
 181     { "/boot/develop/headers/posix", 0, 0, 0 },\
 182     { "/boot/develop/headers", 0, 0, 0 }, \
 183     { 0, 0, 0, 0 } \
 184     }
 185 #else /* CROSS_COMPILE */
 186 #undef  INCLUDE_DEFAULTS
 187 #define INCLUDE_DEFAULTS                                \
 188     { \
 189     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 190     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 191     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 192     { CROSS_INCLUDE_DIR "/be/add-ons/graphics", 0, 0, 0 },\
 193     { CROSS_INCLUDE_DIR "/be/devel", 0, 0, 0 },\
 194     { CROSS_INCLUDE_DIR "/be/translation", 0, 0, 0 },\
 195     { CROSS_INCLUDE_DIR "/be/mail", 0, 0, 0 },\
 196     { CROSS_INCLUDE_DIR "/gnu", 0, 0, 0 },\
 197     { CROSS_INCLUDE_DIR "/be/drivers", 0, 0, 0 },\
 198     { CROSS_INCLUDE_DIR "/be/opengl", 0, 0, 0 },\
 199     { CROSS_INCLUDE_DIR "/be/game", 0, 0, 0 },\
 200     { CROSS_INCLUDE_DIR "/be/support", 0, 0, 0 },\
 201     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 202     { CROSS_INCLUDE_DIR "/be/kernel", 0, 0, 0 },\
 203     { CROSS_INCLUDE_DIR "/be/net", 0, 0, 0 },\
 204     { CROSS_INCLUDE_DIR "/be/midi", 0, 0, 0 },\
 205     { CROSS_INCLUDE_DIR "/be/midi2", 0, 0, 0 },\
 206     { CROSS_INCLUDE_DIR "/be/media", 0, 0, 0 },\
 207     { CROSS_INCLUDE_DIR "/be/interface", 0, 0, 0 },\
 208     { CROSS_INCLUDE_DIR "/be/device", 0, 0, 0 },\
 209     { CROSS_INCLUDE_DIR "/be/app", 0, 0, 0 },\
 210     { CROSS_INCLUDE_DIR "/be/precompiled", 0, 0, 0 },\
 211     { CROSS_INCLUDE_DIR "/be/add-ons/input_server", 0, 0, 0 },\
 212     { CROSS_INCLUDE_DIR "/be/add-ons/net_server", 0, 0, 0 },\
 213     { CROSS_INCLUDE_DIR "/be/add-ons/screen_saver", 0, 0, 0 },\
 214     { CROSS_INCLUDE_DIR "/be/add-ons/tracker", 0, 0, 0 },\
 215     { CROSS_INCLUDE_DIR "/be/be_apps/Deskbar", 0, 0, 0 },\
 216     { CROSS_INCLUDE_DIR "/be/be_apps/NetPositive", 0, 0, 0 },\
 217     { CROSS_INCLUDE_DIR "/be/be_apps/Tracker", 0, 0, 0 },\
 218     { CROSS_INCLUDE_DIR "/be/drivers/tty", 0, 0, 0 },\
 219     { CROSS_INCLUDE_DIR "/be/net/netinet", 0, 0, 0 },\
 220     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 221     { CROSS_INCLUDE_DIR "/be", 0, 0, 0 },\
 222     { CROSS_INCLUDE_DIR "/cpp", 0, 0, 0 },\
 223     { CROSS_INCLUDE_DIR "/posix", 0, 0, 0 },\
 224     { CROSS_INCLUDE_DIR , 0, 0, 0 }, \
 225     { 0, 0, 0, 0 } \
 226     }
 227 #endif
 228
 229 /* Whee.  LIBRARY_PATH is Be's LD_LIBRARY_PATH, which of course will
 230    cause nasty problems if we override it.  */
 231 #define LIBRARY_PATH_ENV        "BELIBRARIES"
 232
 233 /* BeOS doesn't have a separate math library.  */
 234 #define MATH_LIBRARY ""
 235
 236 /* BeOS headers are C++-aware (and often use C++).  */
 237 #define NO_IMPLICIT_EXTERN_C
 238
 239 /* BeOS uses explicit import from shared libraries.  */
 240 #define MULTIPLE_SYMBOL_SPACES 1