gcc/config/s390/tpf.h

   1 /* Definitions for target OS TPF for GNU compiler, for IBM S/390 hardware
   2    Copyright (C) 2003-2017 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 3, 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 COPYING3.  If not see
  21 <http://www.gnu.org/licenses/>.  */
  22
  23 #ifndef _TPF_H
  24 #define _TPF_H
  25
  26 /* TPF wants the following macros defined/undefined as follows.  */
  27 #undef TARGET_TPF
  28 #define TARGET_TPF 1
  29 #undef ASM_APP_ON
  30 #define ASM_APP_ON "#APP\n"
  31 #undef ASM_APP_OFF
  32 #define ASM_APP_OFF "#NO_APP\n"
  33 #define NO_IMPLICIT_EXTERN_C
  34 #define TARGET_POSIX_IO
  35
  36 #undef  SIZE_TYPE
  37 #define SIZE_TYPE ("long unsigned int")
  38 #undef  PTRDIFF_TYPE
  39 #define PTRDIFF_TYPE ("long int")
  40 #undef  WCHAR_TYPE
  41 #define WCHAR_TYPE "int"
  42 #undef  WCHAR_TYPE_SIZE
  43 #define WCHAR_TYPE_SIZE 32
  44
  45
  46 /* TPF OS specific stack-pointer offset.  */
  47 #undef STACK_POINTER_OFFSET
  48 #define STACK_POINTER_OFFSET            448
  49
  50 /* When building for TPF, set a generic default target that is 64 bits. Also
  51    enable TPF profiling support and the standard backchain by default.  */
  52 #undef TARGET_DEFAULT
  53 #define TARGET_DEFAULT (MASK_TPF_PROFILING | MASK_64BIT | MASK_ZARCH \
  54                         | MASK_HARD_DFP | MASK_BACKCHAIN)
  55
  56 /* Exception handling.  */
  57
  58 /* Select a format to encode pointers in exception handling data.  */
  59 #undef ASM_PREFERRED_EH_DATA_FORMAT
  60 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
  61
  62 /* TPF OS specific compiler settings.  */
  63 #undef TARGET_OS_CPP_BUILTINS
  64 #define TARGET_OS_CPP_BUILTINS()                \
  65   do                                            \
  66     {                                           \
  67       builtin_define_std ("tpf");               \
  68       builtin_assert ("system=tpf");            \
  69       builtin_define ("__ELF__");               \
  70     }                                           \
  71   while (0)
  72
  73
  74 #define EXTRA_SPECS                             \
  75   { "entry_spec", ENTRY_SPEC }
  76
  77 /* Make TPF specific spec file settings here.  */
  78
  79 #undef STARTFILE_SPEC
  80 #define STARTFILE_SPEC \
  81   "%{mmain:crt0%O%s} crtbeginS%O%s crt3%O%s"
  82
  83 #undef ENDFILE_SPEC
  84 #define ENDFILE_SPEC "crtendS%O%s"
  85
  86 #undef CC1_SPEC
  87 #define CC1_SPEC "%{!fverbose-asm: -fverbose-asm}"
  88
  89 /* The GNU C++ standard library requires that these macros be defined.  */
  90 #undef CPLUSPLUS_CPP_SPEC
  91 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
  92
  93 /* Rewrite -march=arch* options to the original CPU name in order to
  94    make it work with older binutils.  */
  95 #undef  ASM_SPEC
  96 #define ASM_SPEC                                        \
  97   "%{m31&m64}%{mesa&mzarch}%{march=z*}"                 \
  98   "%{march=arch3:-march=g5}"                            \
  99   "%{march=arch5:-march=z900}"                          \
 100   "%{march=arch6:-march=z990}"                          \
 101   "%{march=arch7:-march=z9-ec}"                         \
 102   "%{march=arch8:-march=z10}"                           \
 103   "%{march=arch9:-march=z196}"                          \
 104   "%{march=arch10:-march=zEC12}"                        \
 105   "%{march=arch11:-march=z13}"                          \
 106   " -alshd=%b.lst"
 107
 108 #undef LIB_SPEC
 109 #define LIB_SPEC "-lCTIS -lCISO -lCLBM -lCTAL -lCFVS -lCTBX -lCTXO \
 110                   -lCJ00 -lCTDF -lCOMX -lCOMS -lCTHD -lCTAD -lTPFSTUB"
 111
 112 #define ENTRY_SPEC "%{mmain:-entry=_start} \
 113                     %{!mmain:-entry=0}"
 114
 115 /* All linking is done shared on TPF-OS.  */
 116 /* FIXME: When binutils patch for new emulation is committed
 117    then change emulation to elf64_s390_tpf.  */
 118 #undef LINK_SPEC
 119 #define LINK_SPEC \
 120   "-m elf64_s390 \
 121    %{static:%estatic is not supported on TPF-OS} \
 122    %{shared: -shared} \
 123    %{!shared:-shared} \
 124    %(entry_spec)"
 125
 126 /* IBM copies these libraries over with these names.  */
 127 #define MATH_LIBRARY "CLBM"
 128 #define LIBSTDCXX "CPP1"
 129
 130 #undef TARGET_LIBC_HAS_FUNCTION
 131 #define TARGET_LIBC_HAS_FUNCTION gnu_libc_has_function
 132
 133 /* GAS supports it, but the debuggers don't, so avoid it.  */
 134 #define SUPPORTS_DISCRIMINATOR 0
 135
 136 #endif /* ! _TPF_H */