gcc/config/i386/beos-elf.h

   1 /* Definitions for Intel x86 running BeOS
   2    Copyright (C) 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
   3
   4 This file is part of GNU CC.
   5
   6 GNU CC is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU CC is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU CC; see the file COPYING.  If not, write to
  18 the Free Software Foundation, 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  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 FUNCTION_PROFILER
  44 #define FUNCTION_PROFILER(FILE, LABELNO)  \
  45 {                                                                       \
  46   if (flag_pic)                                                         \
  47     {                                                                   \
  48       fprintf (FILE, "\tleal %sP%d@GOTOFF(%%ebx),%%edx\n",              \
  49                LPREFIX, (LABELNO));                                     \
  50       fprintf (FILE, "\tcall *mcount@GOT(%%ebx)\n");                    \
  51     }                                                                   \
  52   else                                                                  \
  53     {                                                                   \
  54       fprintf (FILE, "\tmovl $%sP%d,%%edx\n", LPREFIX, (LABELNO));      \
  55       fprintf (FILE, "\tcall mcount\n");                                \
  56     }                                                                   \
  57 }
  58
  59 #undef SIZE_TYPE
  60 #define SIZE_TYPE "long unsigned int"
  61
  62 #undef PTRDIFF_TYPE
  63 #define PTRDIFF_TYPE "long int"
  64
  65 #undef WCHAR_TYPE
  66 #define WCHAR_TYPE "short unsigned int"
  67
  68 #undef WCHAR_TYPE_SIZE
  69 #define WCHAR_TYPE_SIZE 16
  70
  71 #undef CPP_PREDEFINES
  72 #define CPP_PREDEFINES "-D__ELF__ -D__BEOS__ -D__INTEL__ -D_X86_=1 \
  73 -D__stdcall=__attribute__((__stdcall__)) \
  74 -D__cdecl=__attribute__((__cdecl__)) \
  75 -D__declspec(x)=__attribute__((x)) \
  76 -Asystem=beos"
  77
  78 #undef CPP_SPEC
  79 #define CPP_SPEC "%(cpp_cpu) %{!no-fPIC:%{!no-fpic:-D__PIC__ -D__pic__}}"
  80
  81 /* BeOS uses lots of multichars, so don't warn about them unless the
  82    user explicitly asks for the warnings with -Wmultichar.  Note that
  83    CC1_SPEC is used for both cc1 and cc1plus.  */
  84
  85 #undef CC1_SPEC
  86 #define CC1_SPEC "%{!no-fpic:%{!fPIC:-fpic}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
  87
  88 #undef CC1PLUS_SPEC
  89 #define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"
  90
  91 /* Provide a LINK_SPEC appropriate for BeOS.  Here we provide support
  92    for the special GCC options -static and -shared, which allow us to
  93    link things in one of these three modes by applying the appropriate
  94    combinations of options at link-time.  */
  95
  96 /* If ELF is the default format, we should not use /lib/elf.  */
  97
  98 #undef  LINK_SPEC
  99 #define LINK_SPEC "%{!o*:-o %b} -m elf_i386_be -shared -Bsymbolic %{nostart:-e 0}"
 100
 101 /* Provide start and end file specs appropriate to glibc.  */
 102
 103 /* LIB_SPEC for BeOS */
 104 #undef LIB_SPEC
 105 #define LIB_SPEC "-lnet -lroot"
 106
 107 /* gcc runtime lib is built into libroot.so on BeOS */
 108 /* ??? This is gonna be lovely when the next release of gcc has
 109    some new symbol in, so that links start failing.  */
 110 #undef LIBGCC_SPEC
 111 #define LIBGCC_SPEC ""
 112
 113 #undef  STARTFILE_SPEC
 114 #define STARTFILE_SPEC "crti.o%s crtbegin.o%s %{!nostart:start_dyn.o%s} init_term_dyn.o%s %{p:i386-mcount.o%s}"
 115
 116 #undef  ENDFILE_SPEC
 117 #define ENDFILE_SPEC "crtend.o%s crtn.o%s"
 118
 119 /* A C statement (sans semicolon) to output to the stdio stream
 120    FILE the assembler definition of uninitialized global DECL named
 121    NAME whose size is SIZE bytes and alignment is ALIGN bytes.
 122    Try to use asm_output_aligned_bss to implement this macro.  */
 123
 124 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
 125   asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN)
 126
 127 /* A C statement to output to the stdio stream FILE an assembler
 128    command to advance the location counter to a multiple of 1<<LOG
 129    bytes if it is within MAX_SKIP bytes.
 130
 131    This is used to align code labels according to Intel recommendations.  */
 132
 133 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
 134 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP) \
 135   if ((LOG)!=0) \
 136     if ((MAX_SKIP)==0) fprintf ((FILE), "\t.p2align %d\n", (LOG)); \
 137     else fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP))
 138 #endif
 139
 140 /* For native compiler, use standard BeOS include file search paths
 141    rooted in /boot/develop/headers.  For a cross compiler, don't
 142    expect the host to use the BeOS directory scheme, and instead look
 143    for the BeOS include files relative to TOOL_INCLUDE_DIR.  Yes, we
 144    use ANSI string concatenation here (FIXME) */
 145
 146 #ifndef CROSS_COMPILE
 147 #undef INCLUDE_DEFAULTS
 148 #define INCLUDE_DEFAULTS \
 149     { \
 150     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 151     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 152     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 153     { "/boot/develop/headers/be/add-ons/graphics", 0, 0, 0 },\
 154     { "/boot/develop/headers/be/devel", 0, 0, 0 },\
 155     { "/boot/develop/headers/be/translation", 0, 0, 0 },\
 156     { "/boot/develop/headers/be/mail", 0, 0, 0 },\
 157     { "/boot/develop/headers/gnu", 0, 0, 0 },\
 158     { "/boot/develop/headers/be/drivers", 0, 0, 0 },\
 159     { "/boot/develop/headers/be/opengl", 0, 0, 0 },\
 160     { "/boot/develop/headers/be/game", 0, 0, 0 },\
 161     { "/boot/develop/headers/be/support", 0, 0, 0 },\
 162     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 163     { "/boot/develop/headers/be/kernel", 0, 0, 0 },\
 164     { "/boot/develop/headers/be/net", 0, 0, 0 },\
 165     { "/boot/develop/headers/be/midi", 0, 0, 0 },\
 166     { "/boot/develop/headers/be/midi2", 0, 0, 0 },\
 167     { "/boot/develop/headers/be/media", 0, 0, 0 },\
 168     { "/boot/develop/headers/be/interface", 0, 0, 0 },\
 169     { "/boot/develop/headers/be/device", 0, 0, 0 },\
 170     { "/boot/develop/headers/be/app", 0, 0, 0 },\
 171     { "/boot/develop/headers/be/precompiled", 0, 0, 0 },\
 172     { "/boot/develop/headers/be/add-ons/input_server", 0, 0, 0 },\
 173     { "/boot/develop/headers/be/add-ons/net_server", 0, 0, 0 },\
 174     { "/boot/develop/headers/be/add-ons/screen_saver", 0, 0, 0 },\
 175     { "/boot/develop/headers/be/add-ons/tracker", 0, 0, 0 },\
 176     { "/boot/develop/headers/be/be_apps/Deskbar", 0, 0, 0 },\
 177     { "/boot/develop/headers/be/be_apps/NetPositive", 0, 0, 0 },\
 178     { "/boot/develop/headers/be/be_apps/Tracker", 0, 0, 0 },\
 179     { "/boot/develop/headers/be/drivers/tty", 0, 0, 0 },\
 180     { "/boot/develop/headers/be/net/netinet", 0, 0, 0 },\
 181     { "/boot/develop/headers/be/storage", 0, 0, 0 },\
 182     { "/boot/develop/headers/be", 0, 0, 0 },\
 183     { "/boot/develop/headers/cpp", 0, 0, 0 },\
 184     { "/boot/develop/headers/posix", 0, 0, 0 },\
 185     { "/boot/develop/headers", 0, 0, 0 }, \
 186     { 0, 0, 0, 0 } \
 187     }
 188 #else /* CROSS_COMPILE */
 189 #undef  INCLUDE_DEFAULTS
 190 #define INCLUDE_DEFAULTS                                \
 191     { \
 192     { GPLUSPLUS_INCLUDE_DIR, "G++", 1, 1 },\
 193     { GCC_INCLUDE_DIR, "GCC", 0, 0 },\
 194     { TOOL_INCLUDE_DIR, "BINUTILS", 0, 1}, \
 195     { CROSS_INCLUDE_DIR "/be/add-ons/graphics", 0, 0, 0 },\
 196     { CROSS_INCLUDE_DIR "/be/devel", 0, 0, 0 },\
 197     { CROSS_INCLUDE_DIR "/be/translation", 0, 0, 0 },\
 198     { CROSS_INCLUDE_DIR "/be/mail", 0, 0, 0 },\
 199     { CROSS_INCLUDE_DIR "/gnu", 0, 0, 0 },\
 200     { CROSS_INCLUDE_DIR "/be/drivers", 0, 0, 0 },\
 201     { CROSS_INCLUDE_DIR "/be/opengl", 0, 0, 0 },\
 202     { CROSS_INCLUDE_DIR "/be/game", 0, 0, 0 },\
 203     { CROSS_INCLUDE_DIR "/be/support", 0, 0, 0 },\
 204     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 205     { CROSS_INCLUDE_DIR "/be/kernel", 0, 0, 0 },\
 206     { CROSS_INCLUDE_DIR "/be/net", 0, 0, 0 },\
 207     { CROSS_INCLUDE_DIR "/be/midi", 0, 0, 0 },\
 208     { CROSS_INCLUDE_DIR "/be/midi2", 0, 0, 0 },\
 209     { CROSS_INCLUDE_DIR "/be/media", 0, 0, 0 },\
 210     { CROSS_INCLUDE_DIR "/be/interface", 0, 0, 0 },\
 211     { CROSS_INCLUDE_DIR "/be/device", 0, 0, 0 },\
 212     { CROSS_INCLUDE_DIR "/be/app", 0, 0, 0 },\
 213     { CROSS_INCLUDE_DIR "/be/precompiled", 0, 0, 0 },\
 214     { CROSS_INCLUDE_DIR "/be/add-ons/input_server", 0, 0, 0 },\
 215     { CROSS_INCLUDE_DIR "/be/add-ons/net_server", 0, 0, 0 },\
 216     { CROSS_INCLUDE_DIR "/be/add-ons/screen_saver", 0, 0, 0 },\
 217     { CROSS_INCLUDE_DIR "/be/add-ons/tracker", 0, 0, 0 },\
 218     { CROSS_INCLUDE_DIR "/be/be_apps/Deskbar", 0, 0, 0 },\
 219     { CROSS_INCLUDE_DIR "/be/be_apps/NetPositive", 0, 0, 0 },\
 220     { CROSS_INCLUDE_DIR "/be/be_apps/Tracker", 0, 0, 0 },\
 221     { CROSS_INCLUDE_DIR "/be/drivers/tty", 0, 0, 0 },\
 222     { CROSS_INCLUDE_DIR "/be/net/netinet", 0, 0, 0 },\
 223     { CROSS_INCLUDE_DIR "/be/storage", 0, 0, 0 },\
 224     { CROSS_INCLUDE_DIR "/be", 0, 0, 0 },\
 225     { CROSS_INCLUDE_DIR "/cpp", 0, 0, 0 },\
 226     { CROSS_INCLUDE_DIR "/posix", 0, 0, 0 },\
 227     { CROSS_INCLUDE_DIR , 0, 0, 0 }, \
 228     { 0, 0, 0, 0 } \
 229     }
 230 #endif
 231
 232 /* Whee.  LIBRARY_PATH is Be's LD_LIBRARY_PATH, which of course will
 233    cause nasty problems if we override it.  */
 234 #define LIBRARY_PATH_ENV        "BELIBRARIES"
 235
 236 /* BeOS doesn't have a separate math library.  */
 237 #define MATH_LIBRARY ""
 238
 239 /* BeOS headers are C++-aware (and often use C++).  */
 240 #define NO_IMPLICIT_EXTERN_C
 241
 242 /* Define this macro if in some cases global symbols from one translation
 243    unit may not be bound to undefined symbols in another translation unit
 244    without user intervention.  For instance, under Microsoft Windows
 245    symbols must be explicitly imported from shared libraries (DLLs).  */
 246 #define MULTIPLE_SYMBOL_SPACES