1 /* Definitions of target machine GNU compiler. IA-64 version. 2 Copyright (C) 1999-2021 Free Software Foundation, Inc. 3 Contributed by Steve Ellcey <sje@cup.hp.com> and 4 Reva Cuthbertson <reva@cup.hp.com> 5 6 This file is part of GCC. 7 8 GCC is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 3, or (at your option) 11 any later version. 12 13 GCC is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with GCC; see the file COPYING3. If not see 20 <http://www.gnu.org/licenses/>. */ 21 22 /* Enable HPUX ABI quirks. */ 23 #undef TARGET_HPUX 24 #define TARGET_HPUX 1 25 26 #undef WCHAR_TYPE 27 #define WCHAR_TYPE "unsigned int" 28 29 #undef WCHAR_TYPE_SIZE 30 #define WCHAR_TYPE_SIZE 32 31 32 /* Target OS builtins. */ 33 #define TARGET_OS_CPP_BUILTINS() \ 34 do { \ 35 builtin_assert("system=hpux"); \ 36 builtin_assert("system=posix"); \ 37 builtin_assert("system=unix"); \ 38 builtin_define_std("hpux"); \ 39 builtin_define_std("unix"); \ 40 builtin_define("__IA64__"); \ 41 builtin_define("_LONGLONG"); \ 42 builtin_define("_INCLUDE_LONGLONG"); \ 43 builtin_define("__STDC_EXT__"); \ 44 builtin_define("_UINT128_T"); \ 45 if (c_dialect_cxx () || !flag_iso) \ 46 { \ 47 builtin_define("_HPUX_SOURCE"); \ 48 builtin_define("__STDCPP__"); \ 49 builtin_define("_INCLUDE__STDC_A1_SOURCE"); \ 50 } \ 51 if (TARGET_ILP32) \ 52 builtin_define("_ILP32"); \ 53 } while (0) 54 55 #undef CPP_SPEC 56 #define CPP_SPEC \ 57 "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}" 58 /* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD. These 59 affect only aCC's C++ library (Rogue Wave-derived) which we do not 60 use, and they violate the user's name space. */ 61 62 #undef ASM_EXTRA_SPEC 63 #define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}" 64 65 #ifndef USE_GAS 66 #define AS_NEEDS_DASH_FOR_PIPED_INPUT 67 #endif 68 69 #ifndef CROSS_DIRECTORY_STRUCTURE 70 #undef MD_EXEC_PREFIX 71 #define MD_EXEC_PREFIX "/usr/ccs/bin/" 72 73 #undef MD_STARTFILE_PREFIX 74 #define MD_STARTFILE_PREFIX "/usr/ccs/lib/" 75 #endif 76 77 #undef ENDFILE_SPEC 78 79 #undef STARTFILE_SPEC 80 #define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s} \ 81 %{mlp64:/usr/lib/hpux64/unix98%O%s} \ 82 %{!mlp64:/usr/lib/hpux32/unix98%O%s}}" 83 84 #undef LINK_SPEC 85 #define LINK_SPEC \ 86 "-z +Accept TypeMismatch \ 87 %{shared:-b} \ 88 %{!shared: \ 89 -u main \ 90 %{static:-noshared}}" 91 92 #undef LIB_SPEC 93 #define LIB_SPEC \ 94 "%{!shared: \ 95 %{mt|pthread:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):-lrt} -lpthread} \ 96 %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \ 97 %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \ 98 %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \ 99 %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \ 100 %{!symbolic:-lc}}" 101 102 #define MULTILIB_DEFAULTS { "milp32" } 103 104 /* A C expression whose value is zero if pointers that need to be extended 105 from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and 106 greater then zero if they are zero-extended and less then zero if the 107 ptr_extend instruction should be used. */ 108 109 #define POINTERS_EXTEND_UNSIGNED -1 110 111 #define JMP_BUF_SIZE (8 * 76) 112 113 #undef TARGET_DEFAULT 114 #define TARGET_DEFAULT \ 115 (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32) 116 117 /* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call, 118 but that doesn't put out the @function type information which causes 119 shared library problems. */ 120 121 #undef ASM_OUTPUT_EXTERNAL_LIBCALL 122 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ 123 do { \ 124 (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \ 125 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \ 126 } while (0) 127 128 #undef PAD_VARARGS_DOWN 129 #define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type)) 130 131 #define REGISTER_TARGET_PRAGMAS() \ 132 c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma) 133 134 /* Tell ia64.c that we are using the HP linker and we should delay output of 135 function extern declarations so that we don't output them for functions 136 which are never used (and may not be defined). */ 137 138 #undef TARGET_HPUX_LD 139 #define TARGET_HPUX_LD 1 140 141 /* The HPUX dynamic linker objects to weak symbols with no 142 definitions, so do not use them in gthr-posix.h. */ 143 #define GTHREAD_USE_WEAK 0 144 145 #undef CTORS_SECTION_ASM_OP 146 #define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\t\"aw\",\"init_array\"" 147 148 #undef DTORS_SECTION_ASM_OP 149 #define DTORS_SECTION_ASM_OP "\t.section\t.fini_array,\t\"aw\",\"fini_array\"" 150 151 /* The init_array/fini_array technique does not permit the use of 152 initialization priorities. */ 153 #define SUPPORTS_INIT_PRIORITY 0 154 155 #undef READONLY_DATA_SECTION_ASM_OP 156 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\"" 157 158 #undef DATA_SECTION_ASM_OP 159 #define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\"" 160 161 #undef SDATA_SECTION_ASM_OP 162 #define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\"" 163 164 #undef BSS_SECTION_ASM_OP 165 #define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\"" 166 167 #undef SBSS_SECTION_ASM_OP 168 #define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\"" 169 170 #undef TEXT_SECTION_ASM_OP 171 #define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\"" 172 173 /* It is illegal to have relocations in shared segments on HPUX. 174 Pretend flag_pic is always set. */ 175 #undef TARGET_ASM_RELOC_RW_MASK 176 #define TARGET_ASM_RELOC_RW_MASK ia64_hpux_reloc_rw_mask 177 178 /* ia64 HPUX has the float and long double forms of math functions. 179 We redefine this hook so the version from elfos.h header won't be used. */ 180 #undef TARGET_LIBC_HAS_FUNCTION 181 #define TARGET_LIBC_HAS_FUNCTION default_libc_has_function 182 183 #undef TARGET_INIT_LIBFUNCS 184 #define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs 185 186 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode) 187 188 /* HP-UX uses PROFILE_HOOK instead of FUNCTION_PROFILER but we need a 189 FUNCTION_PROFILER defined because its use is not ifdefed. When using 190 PROFILE_HOOK, the profile call comes after the prologue. */ 191 192 #undef FUNCTION_PROFILER 193 #define FUNCTION_PROFILER(FILE, LABELNO) do { } while (0) 194 195 #undef PROFILE_HOOK 196 #define PROFILE_HOOK(LABEL) ia64_profile_hook (LABEL) 197 198 #undef PROFILE_BEFORE_PROLOGUE 199 200 #undef NO_PROFILE_COUNTERS 201 #define NO_PROFILE_COUNTERS 0 202 203 /* The HP-UX linker has a bug that causes calls from functions in 204 .text.unlikely to functions in .text to cause a segfault. Until 205 it is fixed, prevent code from being put into .text.unlikely or 206 .text.hot. */ 207 208 #define TARGET_ASM_FUNCTION_SECTION ia64_hpux_function_section 209 210 #define TARGET_POSIX_IO 211 212 /* Define this to be nonzero if static stack checking is supported. */ 213 #define STACK_CHECK_STATIC_BUILTIN 1 214 215 /* Minimum amount of stack required to recover from an anticipated stack 216 overflow detection. */ 217 #define STACK_CHECK_PROTECT (24 * 1024) 218