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, 2007, 2009,
   3    2010, 2011, 2012 Free Software Foundation, Inc.
   4    Contributed by P.J. Darcy (darcypj@us.ibm.com),
   5                   Hartmut Penner (hpenner@de.ibm.com), and
   6                   Ulrich Weigand (uweigand@de.ibm.com).
   7
   8 This file is part of GCC.
   9
  10 GCC is free software; you can redistribute it and/or modify it under
  11 the terms of the GNU General Public License as published by the Free
  12 Software Foundation; either version 3, or (at your option) any later
  13 version.
  14
  15 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
  16 WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  18 for more details.
  19
  20 You should have received a copy of the GNU General Public License
  21 along with GCC; see the file COPYING3.  If not see
  22 <http://www.gnu.org/licenses/>.  */
  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 /* TPF OS specific stack-pointer offset.  */
  48 #undef STACK_POINTER_OFFSET
  49 #define STACK_POINTER_OFFSET            448
  50
  51 /* When building for TPF, set a generic default target that is 64 bits. Also
  52    enable TPF profiling support and the standard backchain by default.  */
  53 #undef TARGET_DEFAULT
  54 #define TARGET_DEFAULT (MASK_TPF_PROFILING | MASK_64BIT | MASK_ZARCH \
  55                         | MASK_HARD_DFP | MASK_BACKCHAIN)
  56
  57 /* Exception handling.  */
  58
  59 /* Select a format to encode pointers in exception handling data.  */
  60 #undef ASM_PREFERRED_EH_DATA_FORMAT
  61 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
  62
  63 /* TPF OS specific compiler settings.  */
  64 #undef TARGET_OS_CPP_BUILTINS
  65 #define TARGET_OS_CPP_BUILTINS()                \
  66   do                                            \
  67     {                                           \
  68       builtin_define_std ("tpf");               \
  69       builtin_assert ("system=tpf");            \
  70       builtin_define ("__ELF__");               \
  71     }                                           \
  72   while (0)
  73
  74
  75 #define EXTRA_SPECS                             \
  76   { "entry_spec", ENTRY_SPEC }
  77
  78 /* Make TPF specific spec file settings here.  */
  79
  80 #undef STARTFILE_SPEC
  81 #define STARTFILE_SPEC \
  82   "%{mmain:crt0%O%s} crtbeginS%O%s crt3%O%s"
  83
  84 #undef ENDFILE_SPEC
  85 #define ENDFILE_SPEC "crtendS%O%s"
  86
  87 #undef CC1_SPEC
  88 #define CC1_SPEC "%{!fverbose-asm: -fverbose-asm}"
  89
  90 /* The GNU C++ standard library requires that these macros be defined.  */
  91 #undef CPLUSPLUS_CPP_SPEC
  92 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
  93
  94 #undef ASM_SPEC
  95 #define ASM_SPEC "%{m31&m64}%{mesa&mzarch}%{march=*} \
  96                   -alshd=%b.lst"
  97
  98 #undef TARGET_C99_FUNCTIONS
  99 #define TARGET_C99_FUNCTIONS 1
 100
 101 #define ENTRY_SPEC "%{mmain:-entry=_start} \
 102                     %{!mmain:-entry=0}"
 103
 104 /* All linking is done shared on TPF-OS.  */
 105 /* FIXME: When binutils patch for new emulation is committed
 106    then change emulation to elf64_s390_tpf.  */
 107 #undef LINK_SPEC
 108 #define LINK_SPEC \
 109   "-m elf64_s390 \
 110    %{static:%estatic is not supported on TPF-OS} \
 111    %{shared: -shared} \
 112    %{!shared:-shared} \
 113    %(entry_spec)"
 114
 115 /* IBM copies these libraries over with these names.  */
 116 #define MATH_LIBRARY "CLBM"
 117 #define LIBSTDCXX "CPP2"
 118 #endif /* ! _TPF_H */