1/* Definitions of target machine for GNU compiler, for HPs running 2 HPUX using the 64bit runtime model. 3 Copyright (C) 1999-2022 Free Software Foundation, Inc. 4 5This file is part of GCC. 6 7GCC is free software; you can redistribute it and/or modify 8it under the terms of the GNU General Public License as published by 9the Free Software Foundation; either version 3, or (at your option) 10any later version. 11 12GCC is distributed in the hope that it will be useful, 13but WITHOUT ANY WARRANTY; without even the implied warranty of 14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15GNU General Public License for more details. 16 17You should have received a copy of the GNU General Public License 18along with GCC; see the file COPYING3. If not see 19<http://www.gnu.org/licenses/>. */ 20 21/* We can debug dynamically linked executables on hpux11; we also 22 want dereferencing of a NULL pointer to cause a SEGV. Do not move 23 the "+Accept TypeMismatch" switch. We check for it in collect2 24 to determine which init/fini is needed. */ 25#undef LINK_SPEC 26#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GNU_LD) 27#define LINK_SPEC \ 28 "%{!shared:%{p:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\ 29 %nwarning: consider linking with '-static' as system libraries with\n\ 30 %n profiling support are only provided in archive format}}}\ 31 %{!shared:%{pg:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\ 32 %nwarning: consider linking with '-static' as system libraries with\n\ 33 %n profiling support are only provided in archive format}}}\ 34 %{!shared:%{!static:%{rdynamic:-E}}}\ 35 %{mhp-ld:+Accept TypeMismatch -z} %{mlinker-opt:-O}\ 36 %{!shared:-u main %{!nostdlib:%{!nodefaultlibs:-u __cxa_finalize}}}\ 37 %{static:-a archive} %{shared:%{mhp-ld:-b}%{!mhp-ld:-shared}}" 38#else 39#define LINK_SPEC \ 40 "%{!shared:%{p:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\ 41 %nwarning: consider linking with '-static' as system libraries with\n\ 42 %n profiling support are only provided in archive format}}}\ 43 %{!shared:%{pg:-L/lib/pa20_64/libp -L/usr/lib/pa20_64/libp %{!static:\ 44 %nwarning: consider linking with '-static' as system libraries with\n\ 45 %n profiling support are only provided in archive format}}}\ 46 %{!shared:%{!static:%{rdynamic:-E}}}\ 47 %{!mgnu-ld:+Accept TypeMismatch -z} %{mlinker-opt:-O}\ 48 %{!shared:-u main %{!nostdlib:%{!nodefaultlibs:-u __cxa_finalize}}}\ 49 %{static:-a archive} %{shared:%{mgnu-ld:-shared}%{!mgnu-ld:-b}}" 50#endif 51 52/* Profiling support is only provided in libc.a. However, libprof and 53 libgprof are only available in shared form on HP-UX 11.00. We use 54 the shared form if we are using the GNU linker or an archive form 55 isn't available. We also usually need to link with libdld and it's 56 only available in shared form. */ 57#undef LIB_SPEC 58#if ((TARGET_DEFAULT | TARGET_CPU_DEFAULT) & MASK_GNU_LD) 59#define LIB_SPEC \ 60 "%{!shared:\ 61 %{!p:%{!pg:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 62 %{static:-a shared} -lrt %{static:-a archive}}\ 63 %{mt|pthread:-lpthread} -lc\ 64 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 65 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 66 %{p:%{!pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\ 67 -lprof %{static:-a archive}\ 68 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 69 %{static:-a shared} -lrt %{static:-a archive}}\ 70 %{mt|pthread:-lpthread} -lc\ 71 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 72 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 73 %{pg:%{static:%{!mhp-ld:-a shared}%{mhp-ld:-a archive_shared}}\ 74 -lgprof %{static:-a archive}\ 75 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 76 %{static:-a shared} -lrt %{static:-a archive}}\ 77 %{mt|pthread:-lpthread} -lc\ 78 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 79 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 80 %{shared:%{mt|pthread:-lpthread}}" 81#else 82#define LIB_SPEC \ 83 "%{!shared:\ 84 %{!p:%{!pg:%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 85 %{static:-a shared} -lrt %{static:-a archive}}\ 86 %{mt|pthread:-lpthread} -lc\ 87 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 88 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 89 %{p:%{!pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\ 90 -lprof %{static:-a archive}\ 91 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 92 %{static:-a shared} -lrt %{static:-a archive}}\ 93 %{mt|pthread:-lpthread} -lc\ 94 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 95 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 96 %{pg:%{static:%{mgnu-ld:-a shared}%{!mgnu-ld:-a archive_shared}}\ 97 -lgprof %{static:-a archive}\ 98 %{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\ 99 %{static:-a shared} -lrt %{static:-a archive}}\ 100 %{mt|pthread:-lpthread} -lc\ 101 %{static:%{!nolibdld:-a shared -ldld -a archive -lc}\ 102 %{!mt:%{!pthread:-a shared -lc -a archive}}}}}\ 103 %{shared:%{mt|pthread:-lpthread}}" 104#endif 105 106/* Under hpux11, the normal location of the `ld' and `as' programs is the 107 /usr/ccs/bin directory. */ 108 109#ifndef CROSS_DIRECTORY_STRUCTURE 110#undef MD_EXEC_PREFIX 111#define MD_EXEC_PREFIX "/usr/ccs/bin" 112#endif 113 114/* Default prefixes. */ 115 116#undef STANDARD_STARTFILE_PREFIX_1 117#define STANDARD_STARTFILE_PREFIX_1 "/lib/pa20_64/" 118 119#undef STANDARD_STARTFILE_PREFIX_2 120#define STANDARD_STARTFILE_PREFIX_2 "/usr/lib/pa20_64/" 121 122/* Under hpux11 the normal location of the various pa20_64 *crt*.o files 123 is the /usr/ccs/lib/pa20_64 directory. Some files may also be in the 124 /opt/langtools/lib/pa20_64 directory. */ 125 126#ifndef CROSS_DIRECTORY_STRUCTURE 127#undef MD_STARTFILE_PREFIX 128#define MD_STARTFILE_PREFIX "/usr/ccs/lib/pa20_64/" 129#endif 130 131#ifndef CROSS_DIRECTORY_STRUCTURE 132#undef MD_STARTFILE_PREFIX_1 133#define MD_STARTFILE_PREFIX_1 "/opt/langtools/lib/pa20_64/" 134#endif 135 136/* This macro specifies the biggest alignment supported by the object 137 file format of this machine. 138 139 The .align directive in the HP assembler allows alignments up to 140 4096 bytes. However, the maximum alignment of a global common symbol 141 is 16 bytes using HP ld. Unfortunately, this macro doesn't provide 142 a method to check for common symbols. */ 143#undef MAX_OFILE_ALIGNMENT 144#define MAX_OFILE_ALIGNMENT 32768 145 146/* Due to limitations in the target structure, it isn't currently possible 147 to dynamically switch between the GNU and HP assemblers. */ 148#undef TARGET_GAS 149 150/* Configure selects the standard ELFOS defines for use with GAS. */ 151#ifdef USING_ELFOS_H 152 153/* We are using GAS. */ 154#define TARGET_GAS 1 155 156#undef TARGET_ASM_FILE_START 157#define TARGET_ASM_FILE_START pa_hpux64_gas_file_start 158 159/* This is how we output a null terminated string. */ 160#undef STRING_ASM_OP 161#define STRING_ASM_OP "\t.stringz\t" 162 163#define TEXT_SECTION_ASM_OP "\t.text" 164#define DATA_SECTION_ASM_OP "\t.data" 165#define BSS_SECTION_ASM_OP "\t.section\t.bss" 166 167#define HP_INIT_ARRAY_SECTION_ASM_OP "\t.section\t.init" 168#define GNU_INIT_ARRAY_SECTION_ASM_OP "\t.section\t.init_array" 169#define HP_FINI_ARRAY_SECTION_ASM_OP "\t.section\t.fini" 170#define GNU_FINI_ARRAY_SECTION_ASM_OP "\t.section\t.fini_array" 171 172/* We need to override the following two macros defined in elfos.h since 173 the .comm directive has a different syntax and it can't be used for 174 local common symbols. */ 175#undef ASM_OUTPUT_ALIGNED_COMMON 176#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \ 177 pa_asm_output_aligned_common (FILE, NAME, SIZE, ALIGN) 178 179#undef ASM_OUTPUT_ALIGNED_LOCAL 180#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \ 181 pa_asm_output_aligned_local (FILE, NAME, SIZE, ALIGN) 182 183/* The define in pa.h doesn't work with the alias attribute. The 184 default is ok with the following define for GLOBAL_ASM_OP. */ 185#undef TARGET_ASM_GLOBALIZE_LABEL 186 187/* This is how we globalize a label. */ 188#define GLOBAL_ASM_OP "\t.globl\t" 189 190/* Hacked version from defaults.h that uses assemble_name_raw 191 instead of assemble_name. A symbol in a type directive that 192 isn't otherwise referenced doesn't cause the symbol to be 193 placed in the symbol table of the assembled object. */ 194#undef ASM_OUTPUT_TYPE_DIRECTIVE 195#define ASM_OUTPUT_TYPE_DIRECTIVE(STREAM, NAME, TYPE) \ 196do { \ 197 fputs (TYPE_ASM_OP, STREAM); \ 198 assemble_name_raw (STREAM, NAME); \ 199 fputs (", ", STREAM); \ 200 fprintf (STREAM, TYPE_OPERAND_FMT, TYPE); \ 201 putc ('\n', STREAM); \ 202} while (0) 203 204/* Hacked version from elfos.h that doesn't output a label. */ 205#undef ASM_DECLARE_FUNCTION_NAME 206#define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \ 207do { \ 208 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ 209 ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL)); \ 210} while (0) 211 212/* The type of external references must be set correctly for the 213 dynamic loader to work correctly. This is equivalent to the 214 HP assembler's .IMPORT directive but relates more directly to 215 ELF object file types. */ 216#undef ASM_OUTPUT_EXTERNAL 217#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \ 218 pa_hpux_asm_output_external ((FILE), (DECL), (NAME)) 219#define ASM_OUTPUT_EXTERNAL_REAL(FILE, DECL, NAME) \ 220do { \ 221 if (FUNCTION_NAME_P (NAME)) \ 222 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \ 223 else \ 224 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \ 225 default_elf_asm_output_external (FILE, DECL, NAME); \ 226} while (0) 227 228/* We need set the type for external libcalls. Also note that not all 229 libcall names are passed to targetm.encode_section_info (e.g., __main). 230 Thus, we also have to do the section encoding if it hasn't been done 231 already. */ 232#undef ASM_OUTPUT_EXTERNAL_LIBCALL 233#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \ 234do { \ 235 if (!FUNCTION_NAME_P (XSTR (FUN, 0))) \ 236 pa_encode_label (FUN); \ 237 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \ 238} while (0) 239 240/* We need to use the HP style for internal labels. */ 241#undef ASM_GENERATE_INTERNAL_LABEL 242#define ASM_GENERATE_INTERNAL_LABEL(LABEL, PREFIX, NUM) \ 243 do \ 244 { \ 245 char *__p; \ 246 (LABEL)[0] = '*'; \ 247 (LABEL)[1] = (PREFIX)[0]; \ 248 (LABEL)[2] = '$'; \ 249 __p = stpcpy (&(LABEL)[3], &(PREFIX)[1]); \ 250 sprint_ul (__p, (unsigned long) (NUM)); \ 251 } \ 252 while (0) 253 254 255#else /* USING_ELFOS_H */ 256 257/* We are not using GAS. */ 258#define TARGET_GAS 0 259 260/* HPUX 11 has the "new" HP assembler. It's still lousy, but it's a whole 261 lot better than the assembler shipped with older versions of hpux. 262 However, it doesn't support weak symbols and is a bad fit with ELF. */ 263#undef NEW_HP_ASSEMBLER 264#define NEW_HP_ASSEMBLER 1 265 266/* It looks like DWARF2 will be the easiest debug format to handle on this 267 platform. */ 268#define DWARF2_DEBUGGING_INFO 1 269 270/* This target uses the ELF object file format. */ 271#define OBJECT_FORMAT_ELF 272 273#undef TARGET_ASM_FILE_START 274#define TARGET_ASM_FILE_START pa_hpux64_hpas_file_start 275 276#undef TEXT_SECTION_ASM_OP 277#define TEXT_SECTION_ASM_OP "\t.SUBSPA $CODE$\n" 278#undef READONLY_DATA_SECTION_ASM_OP 279#define READONLY_DATA_SECTION_ASM_OP "\t.SUBSPA $LIT$\n" 280#undef DATA_SECTION_ASM_OP 281#define DATA_SECTION_ASM_OP "\t.SUBSPA $DATA$\n" 282#undef BSS_SECTION_ASM_OP 283#define BSS_SECTION_ASM_OP "\t.SUBSPA $BSS$\n" 284 285/* We provide explicit defines for CTORS_SECTION_ASM_OP and 286 DTORS_SECTION_ASM_OP since we don't yet have support for 287 named sections with the HP assembler. */ 288#undef CTORS_SECTION_ASM_OP 289#define CTORS_SECTION_ASM_OP "\t.SUBSPA \\.ctors,QUAD=1,ALIGN=8,ACCESS=31" 290#undef DTORS_SECTION_ASM_OP 291#define DTORS_SECTION_ASM_OP "\t.SUBSPA \\.dtors,QUAD=1,ALIGN=8,ACCESS=31" 292 293#define HP_INIT_ARRAY_SECTION_ASM_OP \ 294 "\t.SUBSPA \\.init,QUAD=1,ALIGN=8,ACCESS=31" 295#define GNU_INIT_ARRAY_SECTION_ASM_OP \ 296 "\t.SUBSPA \\.init_array,QUAD=1,ALIGN=8,ACCESS=31" 297#define HP_FINI_ARRAY_SECTION_ASM_OP \ 298 "\t.SUBSPA \\.fini,QUAD=1,ALIGN=8,ACCESS=31" 299#define GNU_FINI_ARRAY_SECTION_ASM_OP \ 300 "\t.SUBSPA \\.fini_array,QUAD=1,ALIGN=8,ACCESS=31" 301 302#endif /* USING_ELFOS_H */ 303 304/* The following defines, used to run constructors and destructors with 305 the SOM linker under HP-UX 11, are not needed. */ 306#undef HAS_INIT_SECTION 307#undef LD_INIT_SWITCH 308#undef LD_FINI_SWITCH 309 310/* The following STARTFILE_SPEC and ENDFILE_SPEC defines provide the 311 magic needed to run initializers and finalizers. */ 312#undef STARTFILE_SPEC 313#if TARGET_HPUX_11_31 314#define STARTFILE_SPEC \ 315 "%{!shared: %{!symbolic: crt0%O%s} \ 316 %{munix=95:unix95.o%s} %{munix=98:unix98.o%s} \ 317 %{!munix=93:%{!munix=95:%{!munix=98:unix2003%O%s}}}} \ 318 %{static:crtbeginT%O%s} \ 319 %{!static:%{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}}" 320#elif TARGET_HPUX_11_11 321#define STARTFILE_SPEC \ 322 "%{!shared: %{!symbolic: crt0%O%s} %{munix=95:unix95.o%s} \ 323 %{!munix=93:%{!munix=95:unix98%O%s}}} %{static:crtbeginT%O%s} \ 324 %{!static:%{!shared:crtbegin%O%s} %{shared:crtbeginS%O%s}}" 325#else 326#define STARTFILE_SPEC \ 327 "%{!shared: %{!symbolic: crt0%O%s} %{munix=95:unix95%O%s}} \ 328 %{static:crtbeginT%O%s} %{!static:%{!shared:crtbegin%O%s} \ 329 %{shared:crtbeginS%O%s}}" 330#endif 331 332/* The libgcc_stub.a and milli.a libraries must come last. We need 333 to link with these libraries whenever start files are needed. */ 334#undef ENDFILE_SPEC 335#define ENDFILE_SPEC \ 336 "%{!shared:crtend%O%s libgcc_stub.a%s} %{shared:crtendS%O%s} milli.a%s" 337 338/* Since HP uses the .init and .fini sections for array initializers 339 and finalizers, we need different defines for INIT_SECTION_ASM_OP 340 and FINI_SECTION_ASM_OP. With the implementation adopted below, 341 the sections are not actually used. However, we still must provide 342 defines to select the proper code path. */ 343#undef INIT_SECTION_ASM_OP 344#define INIT_SECTION_ASM_OP "" 345#undef FINI_SECTION_ASM_OP 346#define FINI_SECTION_ASM_OP "" 347 348/* We are using array initializers and don't want calls in the INIT 349 and FINI sections. */ 350#undef CRT_CALL_STATIC_FUNCTION 351#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) 352 353/* The init_priority attribute is not supported with HP ld. This could be 354 supported if collect2 was used with LD_INIT_SWITCH. Unfortunately, this 355 approach doesn't work with GNU ld since HP-UX doesn't support DT_INIT, 356 and therefore the -init and -fini GNU ld switches. */ 357#undef SUPPORTS_INIT_PRIORITY 358#define SUPPORTS_INIT_PRIORITY (TARGET_GNU_LD ? 1 : 0) 359 360/* If using HP ld do not call pxdb. Use size as a program that does nothing 361 and returns 0. /bin/true cannot be used because it is a script without 362 an interpreter. */ 363#define INIT_ENVIRONMENT "LD_PXDB=/usr/ccs/bin/size" 364 365/* The HPUX dynamic linker objects to undefined weak symbols, so do 366 not use them in gthr-posix.h. */ 367#define GTHREAD_USE_WEAK 0 368 369/* Support attribute weak. However, the GNU linker only resolves weak 370 references if they appear in a shared library. Thus, it is impossible 371 to create a static executable containing weak symbols. This is a problem 372 for the various crt files in libgcc. We don't want undefined weak 373 references to __register_frame_info, __deregister_frame_info and 374 __cxa_finalize introduced by crtbegin.o. So, we provide an archive 375 library of empty stub functions to resolve these symbols. */ 376#define TARGET_ATTRIBUTE_WEAK 377