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 */