gcc/config/s390/tpf.h

   1 /* Definitions for target OS TPF for GNU compiler, for IBM S/390 hardware
   2    Copyright (C) 2003-2023 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 TARGET_POSIX_IO
  34
  35 #undef  SIZE_TYPE
  36 #define SIZE_TYPE ("long unsigned int")
  37 #undef  PTRDIFF_TYPE
  38 #define PTRDIFF_TYPE ("long int")
  39 #undef  WCHAR_TYPE
  40 #define WCHAR_TYPE "int"
  41 #undef  WCHAR_TYPE_SIZE
  42 #define WCHAR_TYPE_SIZE 32
  43
  44
  45 /* TPF OS specific stack-pointer offset.  */
  46 #undef STACK_POINTER_OFFSET
  47 #define STACK_POINTER_OFFSET            448
  48
  49 /* When building for TPF, set a generic default target that is 64 bits. Also
  50    enable TPF profiling support and the standard backchain by default.  */
  51 #undef TARGET_DEFAULT
  52 #define TARGET_DEFAULT (MASK_TPF_PROFILING | MASK_64BIT | MASK_ZARCH \
  53                         | MASK_HARD_DFP | MASK_BACKCHAIN)
  54
  55 /* Exception handling.  */
  56
  57 /* Select a format to encode pointers in exception handling data.  */
  58 #undef ASM_PREFERRED_EH_DATA_FORMAT
  59 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
  60
  61 /* TPF OS specific compiler settings.  */
  62 #undef TARGET_OS_CPP_BUILTINS
  63 #define TARGET_OS_CPP_BUILTINS()                \
  64   do                                            \
  65     {                                           \
  66       builtin_define_std ("tpf");               \
  67       builtin_assert ("system=tpf");            \
  68       builtin_define ("__ELF__");               \
  69     }                                           \
  70   while (0)
  71
  72
  73 #define EXTRA_SPECS                             \
  74   { "entry_spec", ENTRY_SPEC }
  75
  76 /* Make TPF specific spec file settings here.  */
  77
  78 #undef STARTFILE_SPEC
  79 #define STARTFILE_SPEC \
  80   "%{mmain:crt0%O%s} crtbeginS%O%s crt3%O%s"
  81
  82 #undef ENDFILE_SPEC
  83 #define ENDFILE_SPEC "crtendS%O%s"
  84
  85 #undef CC1_SPEC
  86 #define CC1_SPEC "%{!fverbose-asm: -fverbose-asm}"
  87
  88 /* The GNU C++ standard library requires that these macros be defined.  */
  89 #undef CPLUSPLUS_CPP_SPEC
  90 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
  91
  92 /* Rewrite -march=arch* options to the original CPU name in order to
  93    make it work with older binutils.  */
  94 #undef  ASM_SPEC
  95 #define ASM_SPEC                                        \
  96   "%{m31&m64}%{mesa&mzarch}%{march=z*}"                 \
  97   "%{march=arch5:-march=z900}"                          \
  98   "%{march=arch6:-march=z990}"                          \
  99   "%{march=arch7:-march=z9-ec}"                         \
 100   "%{march=arch8:-march=z10}"                           \
 101   "%{march=arch9:-march=z196}"                          \
 102   "%{march=arch10:-march=zEC12}"                        \
 103   "%{march=arch11:-march=z13}"                          \
 104   " -alshd=%b.lst"
 105
 106 #undef LIB_SPEC
 107 #define LIB_SPEC "-lCTIS -lCISO -lCLBM -lCTAL -lCFVS -lCTBX -lCTXO \
 108                   -lCJ00 -lCTDF -lCOMX -lCOMS -lCTHD -lCTAD -lTPFSTUB"
 109
 110 #define ENTRY_SPEC "%{mmain:-entry=_start} \
 111                     %{!mmain:-entry=0}"
 112
 113 /* All linking is done shared on TPF-OS.  */
 114 /* FIXME: When binutils patch for new emulation is committed
 115    then change emulation to elf64_s390_tpf.  */
 116 #undef LINK_SPEC
 117 #define LINK_SPEC \
 118   "-m elf64_s390 \
 119    %{static:%estatic is not supported on TPF-OS} \
 120    %{shared: -shared} \
 121    %{!shared:-shared} \
 122    %(entry_spec)"
 123
 124 /* IBM copies these libraries over with these names.  */
 125 #define MATH_LIBRARY "CLBM"
 126 #define LIBSTDCXX "CPP1"
 127
 128 #undef TARGET_LIBC_HAS_FUNCTION
 129 #define TARGET_LIBC_HAS_FUNCTION gnu_libc_has_function
 130
 131 /* GAS supports it, but the debuggers don't, so avoid it.  */
 132 #define SUPPORTS_DISCRIMINATOR 0
 133
 134 /* z/TPF hardcoded values for the -mtpf-trace feature.  */
 135
 136 /* The *_CHECK value specify addresses in the lowcore whose byte
 137    values can be used to turn on/off the tracing.  */
 138 #define TPF_TRACE_PROLOGUE_CHECK 4065
 139 #define TPF_TRACE_EPILOGUE_CHECK 4071
 140
 141 /* The target addresses for the z/TPF trace facility.  */
 142 #define TPF_TRACE_PROLOGUE_TARGET 4064
 143 #define TPF_TRACE_EPILOGUE_TARGET 4070
 144
 145 /* Alternate target addresses for the z/TPF trace facility.  These
 146    will be used with the -mtpf-trace-skip switch.  */
 147 #define TPF_TRACE_PROLOGUE_SKIP_TARGET 4076
 148 #define TPF_TRACE_EPILOGUE_SKIP_TARGET 4082
 149
 150 #endif /* ! _TPF_H */