gcc/config/s390/tpf.h

   1 /* Definitions for target OS TPF for GNU compiler, for IBM S/390 hardware
   2    Copyright (C) 2003, 2004, 2005 Free Software Foundation, Inc.
   3    Contributed by P.J. Darcy (darcypj@us.ibm.com),
   4                   Hartmut Penner (hpenner@de.ibm.com), and
   5                   Ulrich Weigand (uweigand@de.ibm.com).
   6
   7 This file is part of GCC.
   8
   9 GCC is free software; you can redistribute it and/or modify it under
  10 the terms of the GNU General Public License as published by the Free
  11 Software Foundation; either version 2, or (at your option) any later
  12 version.
  13
  14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  16 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  17 for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with GCC; see the file COPYING.  If not, write to the Free
  21 Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
  22 02110-1301, USA.  */
  23
  24 #ifndef _TPF_H
  25 #define _TPF_H
  26
  27 /* TPF wants the following macros defined/undefined as follows.  */
  28 #undef TARGET_TPF
  29 #define TARGET_TPF 1
  30 #undef ASM_APP_ON
  31 #define ASM_APP_ON "#APP\n"
  32 #undef ASM_APP_OFF
  33 #define ASM_APP_OFF "#NO_APP\n"
  34 #define NO_IMPLICIT_EXTERN_C
  35 #define TARGET_POSIX_IO
  36
  37 #undef  SIZE_TYPE
  38 #define SIZE_TYPE ("long unsigned int")
  39 #undef  PTRDIFF_TYPE
  40 #define PTRDIFF_TYPE ("long int")
  41 #undef  WCHAR_TYPE
  42 #define WCHAR_TYPE "int"
  43 #undef  WCHAR_TYPE_SIZE
  44 #define WCHAR_TYPE_SIZE 32
  45
  46
  47 /* Basic record keeping for the TPF OS name.  */
  48 #undef  TARGET_VERSION
  49 #define TARGET_VERSION fprintf (stderr, " (TPF: zSeries)");
  50
  51 /* TPF OS specific stack-pointer offset.  */
  52 #undef STACK_POINTER_OFFSET
  53 #define STACK_POINTER_OFFSET            448
  54
  55 /* When building for TPF, set a generic default target that is 64 bits. Also
  56    enable TPF profiling support and the standard backchain by default.  */
  57 #undef TARGET_DEFAULT
  58 #define TARGET_DEFAULT (MASK_TPF_PROFILING | MASK_64BIT | MASK_ZARCH \
  59                         | MASK_HARD_FLOAT | MASK_BACKCHAIN)
  60
  61 /* Exception handling.  */
  62
  63 /* Select a format to encode pointers in exception handling data.  */
  64 #undef ASM_PREFERRED_EH_DATA_FORMAT
  65 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
  66
  67 /* TPF OS specific compiler settings.  */
  68 #undef TARGET_OS_CPP_BUILTINS
  69 #define TARGET_OS_CPP_BUILTINS()                \
  70   do                                            \
  71     {                                           \
  72       builtin_define_std ("tpf");               \
  73       builtin_assert ("system=tpf");            \
  74       builtin_define ("__ELF__");               \
  75       if (flag_pic)                             \
  76         {                                       \
  77           builtin_define ("__PIC__");           \
  78           builtin_define ("__pic__");           \
  79         }                                       \
  80     }                                           \
  81   while (0)
  82
  83
  84 #define EXTRA_SPECS                             \
  85   { "entry_spec", ENTRY_SPEC }
  86
  87 /* Make TPF specific spec file settings here.  */
  88
  89 #undef STARTFILE_SPEC
  90 #define STARTFILE_SPEC \
  91   "%{mmain:crt0%O%s} crtbeginS%O%s crt3%O%s"
  92
  93 #undef ENDFILE_SPEC
  94 #define ENDFILE_SPEC "crtendS%O%s"
  95
  96 #undef CC1_SPEC
  97 #define CC1_SPEC "%{!fverbose-asm: -fverbose-asm}"
  98
  99 /* The GNU C++ standard library requires that these macros be defined.  */
 100 #undef CPLUSPLUS_CPP_SPEC
 101 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
 102
 103 #undef ASM_SPEC
 104 #define ASM_SPEC "%{m31&m64}%{mesa&mzarch}%{march=*} \
 105                   -alshd=%b.lst"
 106
 107 /* It would be nice to get the system linker script define the ones that it
 108    needed.  */
 109 #undef LIB_SPEC
 110 #define LIB_SPEC "-lCTIS -lCISO -lCLBM -lCTAL -lCFVS -lCTBX -lCTXO \
 111                   -lCJ00 -lCTDF -lCOMX -lCOMS -lCTHD -lCTAD -lTPFSTUB"
 112
 113 #undef TARGET_C99_FUNCTIONS
 114 #define TARGET_C99_FUNCTIONS 1
 115
 116 #define ENTRY_SPEC "%{mmain:-entry=_start} \
 117                     %{!mmain:-entry=0}"
 118
 119 /* All linking is done shared on TPF-OS.  */
 120 /* FIXME: When binutils patch for new emulation is committed
 121    then change emulation to elf64_s390_tpf.  */
 122 #undef LINK_SPEC
 123 #define LINK_SPEC \
 124   "-m elf64_s390 \
 125    %{static:%estatic is not supported on TPF-OS} \
 126    %{shared: -shared} \
 127    %{!shared:-shared} \
 128    %(entry_spec)"
 129
 130 #define MD_UNWIND_SUPPORT "config/s390/tpf-unwind.h"
 131
 132 /* IBM copies these libraries over with these names.  */
 133 #define MATH_LIBRARY "-lCLBM"
 134 #define LIBSTDCXX "-lCPP1"
 135 #endif /* ! _TPF_H */