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1 /* Definitions for target OS TPF for GNU compiler, for IBM S/390 hardware
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2 Copyright (C) 2003, 2004, 2005, 2007 Free Software Foundation, Inc.
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3 Contributed by P.J. Darcy (darcypj@us.ibm.com),
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4 Hartmut Penner (hpenner@de.ibm.com), and
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5 Ulrich Weigand (uweigand@de.ibm.com).
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6
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7 This file is part of GCC.
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8
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9 GCC is free software; you can redistribute it and/or modify it under
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10 the terms of the GNU General Public License as published by the Free
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11 Software Foundation; either version 3, or (at your option) any later
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12 version.
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13
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14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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15 WARRANTY; without even the implied warranty of MERCHANTABILITY or
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16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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17 for more details.
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18
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19 You should have received a copy of the GNU General Public License
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20 along with GCC; see the file COPYING3. If not see
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21 <http://www.gnu.org/licenses/>. */
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22
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23 #ifndef _TPF_H
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24 #define _TPF_H
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25
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26 /* TPF wants the following macros defined/undefined as follows. */
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27 #undef TARGET_TPF
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28 #define TARGET_TPF 1
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29 #undef ASM_APP_ON
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30 #define ASM_APP_ON "#APP\n"
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31 #undef ASM_APP_OFF
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32 #define ASM_APP_OFF "#NO_APP\n"
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33 #define NO_IMPLICIT_EXTERN_C
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34 #define TARGET_POSIX_IO
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35
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36 #undef SIZE_TYPE
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37 #define SIZE_TYPE ("long unsigned int")
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38 #undef PTRDIFF_TYPE
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39 #define PTRDIFF_TYPE ("long int")
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40 #undef WCHAR_TYPE
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41 #define WCHAR_TYPE "int"
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42 #undef WCHAR_TYPE_SIZE
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43 #define WCHAR_TYPE_SIZE 32
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44
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45
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46 /* Basic record keeping for the TPF OS name. */
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47 #undef TARGET_VERSION
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48 #define TARGET_VERSION fprintf (stderr, " (TPF: zSeries)");
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49
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50 /* TPF OS specific stack-pointer offset. */
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51 #undef STACK_POINTER_OFFSET
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52 #define STACK_POINTER_OFFSET 448
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53
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54 /* When building for TPF, set a generic default target that is 64 bits. Also
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55 enable TPF profiling support and the standard backchain by default. */
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56 #undef TARGET_DEFAULT
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57 #define TARGET_DEFAULT (MASK_TPF_PROFILING | MASK_64BIT | MASK_ZARCH \
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58 | MASK_HARD_FLOAT | MASK_BACKCHAIN)
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59
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60 /* Exception handling. */
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61
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62 /* Select a format to encode pointers in exception handling data. */
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63 #undef ASM_PREFERRED_EH_DATA_FORMAT
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64 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) DW_EH_PE_absptr
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65
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66 /* TPF OS specific compiler settings. */
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67 #undef TARGET_OS_CPP_BUILTINS
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68 #define TARGET_OS_CPP_BUILTINS() \
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69 do \
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70 { \
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71 builtin_define_std ("tpf"); \
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72 builtin_assert ("system=tpf"); \
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73 builtin_define ("__ELF__"); \
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74 } \
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75 while (0)
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76
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77
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78 #define EXTRA_SPECS \
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79 { "entry_spec", ENTRY_SPEC }
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80
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81 /* Make TPF specific spec file settings here. */
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82
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83 #undef STARTFILE_SPEC
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84 #define STARTFILE_SPEC \
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85 "%{mmain:crt0%O%s} crtbeginS%O%s crt3%O%s"
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86
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87 #undef ENDFILE_SPEC
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88 #define ENDFILE_SPEC "crtendS%O%s"
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89
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90 #undef CC1_SPEC
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91 #define CC1_SPEC "%{!fverbose-asm: -fverbose-asm}"
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92
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93 /* The GNU C++ standard library requires that these macros be defined. */
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94 #undef CPLUSPLUS_CPP_SPEC
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95 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
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96
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97 #undef ASM_SPEC
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98 #define ASM_SPEC "%{m31&m64}%{mesa&mzarch}%{march=*} \
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99 -alshd=%b.lst"
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100
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101 /* It would be nice to get the system linker script define the ones that it
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102 needed. */
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103 #undef LIB_SPEC
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104 #define LIB_SPEC "-lCTIS -lCISO -lCLBM -lCTAL -lCFVS -lCTBX -lCTXO \
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105 -lCJ00 -lCTDF -lCOMX -lCOMS -lCTHD -lCTAD -lTPFSTUB"
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106
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107 #undef TARGET_C99_FUNCTIONS
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108 #define TARGET_C99_FUNCTIONS 1
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109
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110 #define ENTRY_SPEC "%{mmain:-entry=_start} \
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111 %{!mmain:-entry=0}"
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112
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113 /* All linking is done shared on TPF-OS. */
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114 /* FIXME: When binutils patch for new emulation is committed
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115 then change emulation to elf64_s390_tpf. */
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116 #undef LINK_SPEC
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117 #define LINK_SPEC \
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118 "-m elf64_s390 \
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119 %{static:%estatic is not supported on TPF-OS} \
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120 %{shared: -shared} \
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121 %{!shared:-shared} \
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122 %(entry_spec)"
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123
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124 #define MD_UNWIND_SUPPORT "config/s390/tpf-unwind.h"
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125
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126 /* IBM copies these libraries over with these names. */
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127 #define MATH_LIBRARY "-lCLBM"
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128 #define LIBSTDCXX "-lCPP1"
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129 #endif /* ! _TPF_H */
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