gcc/config/rs6000/sysv4.h

   1 /* Target definitions for GNU compiler for PowerPC running System V.4
   2    Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
   3    Free Software Foundation, Inc.
   4    Contributed by Cygnus Support.
   5
   6 This file is part of GNU CC.
   7
   8 GNU CC 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 2, or (at your option)
  11 any later version.
  12
  13 GNU CC 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 GNU CC; see the file COPYING.  If not, write to
  20 the Free Software Foundation, 59 Temple Place - Suite 330,
  21 Boston, MA 02111-1307, USA.  */
  22
  23
  24 /* Header files should be C++ aware in general.  */
  25 #define NO_IMPLICIT_EXTERN_C
  26
  27 /* Yes!  We are ELF.  */
  28 #define TARGET_OBJECT_FORMAT OBJECT_ELF
  29
  30 /* Default ABI to compile code for.  */
  31 #define DEFAULT_ABI rs6000_current_abi
  32
  33 /* Default ABI to use.  */
  34 #define RS6000_ABI_NAME "sysv"
  35
  36 /* Override rs6000.h definition.  */
  37 #undef  ASM_DEFAULT_SPEC
  38 #define ASM_DEFAULT_SPEC "-mppc"
  39
  40 /* Small data support types.  */
  41 enum rs6000_sdata_type {
  42   SDATA_NONE,                   /* No small data support.  */
  43   SDATA_DATA,                   /* Just put data in .sbss/.sdata, don't use relocs.  */
  44   SDATA_SYSV,                   /* Use r13 to point to .sdata/.sbss.  */
  45   SDATA_EABI                    /* Use r13 like above, r2 points to .sdata2/.sbss2.  */
  46 };
  47
  48 extern enum rs6000_sdata_type rs6000_sdata;
  49
  50 /* V.4/eabi switches.  */
  51 #define MASK_NO_BITFIELD_TYPE   0x40000000      /* Set PCC_BITFIELD_TYPE_MATTERS to 0.  */
  52 #define MASK_STRICT_ALIGN       0x20000000      /* Set STRICT_ALIGNMENT to 1.  */
  53 #define MASK_RELOCATABLE        0x10000000      /* GOT pointers are PC relative.  */
  54 #define MASK_EABI               0x08000000      /* Adhere to eabi, not System V spec.  */
  55 #define MASK_LITTLE_ENDIAN      0x04000000      /* Target is little endian.  */
  56 #define MASK_REGNAMES           0x02000000      /* Use alternate register names.  */
  57 #define MASK_PROTOTYPE          0x01000000      /* Only prototyped fcns pass variable args.  */
  58 #define MASK_NO_BITFIELD_WORD   0x00800000      /* Bitfields cannot cross word boundaries */
  59
  60 #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE)
  61 #define TARGET_STRICT_ALIGN     (target_flags & MASK_STRICT_ALIGN)
  62 #define TARGET_RELOCATABLE      (target_flags & MASK_RELOCATABLE)
  63 #define TARGET_EABI             (target_flags & MASK_EABI)
  64 #define TARGET_LITTLE_ENDIAN    (target_flags & MASK_LITTLE_ENDIAN)
  65 #define TARGET_REGNAMES         (target_flags & MASK_REGNAMES)
  66 #define TARGET_PROTOTYPE        (target_flags & MASK_PROTOTYPE)
  67 #define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD)
  68 #define TARGET_TOC              ((target_flags & MASK_64BIT)            \
  69                                  || ((target_flags & (MASK_RELOCATABLE  \
  70                                                       | MASK_MINIMAL_TOC)) \
  71                                      && flag_pic > 1)                   \
  72                                  || DEFAULT_ABI == ABI_AIX)
  73
  74 #define TARGET_BITFIELD_TYPE    (! TARGET_NO_BITFIELD_TYPE)
  75 #define TARGET_BIG_ENDIAN       (! TARGET_LITTLE_ENDIAN)
  76 #define TARGET_NO_PROTOTYPE     (! TARGET_PROTOTYPE)
  77 #define TARGET_NO_TOC           (! TARGET_TOC)
  78 #define TARGET_NO_EABI          (! TARGET_EABI)
  79
  80 /* Strings provided by SUBTARGET_OPTIONS */
  81 extern const char *rs6000_abi_name;
  82 extern const char *rs6000_sdata_name;
  83
  84 /* Override rs6000.h definition.  */
  85 #undef  SUBTARGET_OPTIONS
  86 #define SUBTARGET_OPTIONS                                               \
  87   { "call-",  &rs6000_abi_name, N_("Select ABI calling convention") },  \
  88   { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling") }
  89
  90 /* Max # of bytes for variables to automatically be put into the .sdata
  91    or .sdata2 sections.  */
  92 extern int g_switch_value;              /* Value of the -G xx switch.  */
  93 extern int g_switch_set;                /* Whether -G xx was passed.  */
  94
  95 #define SDATA_DEFAULT_SIZE 8
  96
  97 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
  98    the same as -mminimal-toc.  */
  99 /* Override rs6000.h definition.  */
 100 #undef  SUBTARGET_SWITCHES
 101 #define SUBTARGET_SWITCHES                                              \
 102   { "bit-align",        -MASK_NO_BITFIELD_TYPE,                         \
 103     N_("Align to the base type of the bit-field") },                    \
 104   { "no-bit-align",      MASK_NO_BITFIELD_TYPE,                         \
 105     N_("Don't align to the base type of the bit-field") },              \
 106   { "strict-align",      MASK_STRICT_ALIGN,                             \
 107     N_("Don't assume that unaligned accesses are handled by the system") }, \
 108   { "no-strict-align",  -MASK_STRICT_ALIGN,                             \
 109     N_("Assume that unaligned accesses are handled by the system") },   \
 110   { "relocatable",       MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
 111     N_("Produce code relocatable at runtime") },                        \
 112   { "no-relocatable",   -MASK_RELOCATABLE,                              \
 113     N_("Don't produce code relocatable at runtime") },                  \
 114   { "relocatable-lib",   MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
 115     N_("Produce code relocatable at runtime") },                        \
 116   { "no-relocatable-lib", -MASK_RELOCATABLE,                            \
 117     N_("Don't produce code relocatable at runtime") },                  \
 118   { "little-endian",     MASK_LITTLE_ENDIAN,                            \
 119     N_("Produce little endian code") },                                 \
 120   { "little",            MASK_LITTLE_ENDIAN,                            \
 121     N_("Produce little endian code") },                                 \
 122   { "big-endian",       -MASK_LITTLE_ENDIAN,                            \
 123     N_("Produce big endian code") },                                    \
 124   { "big",              -MASK_LITTLE_ENDIAN,                            \
 125     N_("Produce big endian code") },                                    \
 126   { "no-toc",            0, N_("no description yet") },                 \
 127   { "toc",               MASK_MINIMAL_TOC, N_("no description yet") },  \
 128   { "full-toc",          MASK_MINIMAL_TOC, N_("no description yet") },  \
 129   { "prototype",         MASK_PROTOTYPE, N_("no description yet") },    \
 130   { "no-prototype",     -MASK_PROTOTYPE, N_("no description yet") },    \
 131   { "no-traceback",      0, N_("no description yet") },                 \
 132   { "eabi",              MASK_EABI, N_("Use EABI") },                   \
 133   { "no-eabi",          -MASK_EABI, N_("Don't use EABI") },             \
 134   { "bit-word",         -MASK_NO_BITFIELD_WORD, "" },                   \
 135   { "no-bit-word",       MASK_NO_BITFIELD_WORD,                         \
 136     N_("Do not allow bit-fields to cross word boundaries") },           \
 137   { "regnames",           MASK_REGNAMES,                                \
 138     N_("Use alternate register names") },                               \
 139   { "no-regnames",       -MASK_REGNAMES,                                \
 140     N_("Don't use alternate register names") },                         \
 141   { "sdata",             0, N_("no description yet") },                 \
 142   { "no-sdata",          0, N_("no description yet") },                 \
 143   { "sim",               0,                                             \
 144     N_("Link with libsim.a, libc.a and sim-crt0.o") },                  \
 145   { "ads",               0,                                             \
 146     N_("Link with libads.a, libc.a and crt0.o") },                      \
 147   { "yellowknife",       0,                                             \
 148     N_("Link with libyk.a, libc.a and crt0.o") },                       \
 149   { "mvme",              0,                                             \
 150     N_("Link with libmvme.a, libc.a and crt0.o") },                     \
 151   { "emb",               0,                                             \
 152     N_("Set the PPC_EMB bit in the ELF flags header") },                \
 153   { "windiss",           0, N_("Use the WindISS simulator") },          \
 154   { "shlib",             0, N_("no description yet") },                 \
 155   EXTRA_SUBTARGET_SWITCHES                                              \
 156   { "newlib",            0, N_("no description yet") },
 157
 158 /* This is meant to be redefined in the host dependent files.  */
 159 #define EXTRA_SUBTARGET_SWITCHES
 160
 161 /* Sometimes certain combinations of command options do not make sense
 162    on a particular target machine.  You can define a macro
 163    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
 164    defined, is executed once just after all the command options have
 165    been parsed.
 166
 167    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
 168    get control.  */
 169
 170 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 171 do {                                                                    \
 172   if (!g_switch_set)                                                    \
 173     g_switch_value = SDATA_DEFAULT_SIZE;                                \
 174                                                                         \
 175   if (!strcmp (rs6000_abi_name, "sysv"))                                \
 176     rs6000_current_abi = ABI_V4;                                        \
 177   else if (!strcmp (rs6000_abi_name, "sysv-noeabi"))                    \
 178     {                                                                   \
 179       rs6000_current_abi = ABI_V4;                                      \
 180       target_flags &= ~ MASK_EABI;                                      \
 181     }                                                                   \
 182   else if (!strcmp (rs6000_abi_name, "sysv-eabi")                       \
 183            || !strcmp (rs6000_abi_name, "eabi"))                        \
 184     {                                                                   \
 185       rs6000_current_abi = ABI_V4;                                      \
 186       target_flags |= MASK_EABI;                                        \
 187     }                                                                   \
 188   else if (!strcmp (rs6000_abi_name, "aix"))                            \
 189     {                                                                   \
 190       rs6000_current_abi = ABI_AIX_NODESC;                              \
 191       target_flags |= MASK_EABI;                                        \
 192     }                                                                   \
 193   else if (!strcmp (rs6000_abi_name, "aixdesc"))                        \
 194     rs6000_current_abi = ABI_AIX;                                       \
 195   else if (!strcmp (rs6000_abi_name, "freebsd"))                        \
 196     rs6000_current_abi = ABI_V4;                                        \
 197   else if (!strcmp (rs6000_abi_name, "linux"))                          \
 198     rs6000_current_abi = ABI_V4;                                        \
 199   else if (!strcmp (rs6000_abi_name, "gnu"))                            \
 200     rs6000_current_abi = ABI_V4;                                        \
 201   else if (!strcmp (rs6000_abi_name, "netbsd"))                         \
 202     rs6000_current_abi = ABI_V4;                                        \
 203   else if (!strcmp (rs6000_abi_name, "i960-old"))                       \
 204     {                                                                   \
 205       rs6000_current_abi = ABI_V4;                                      \
 206       target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI                   \
 207                        | MASK_NO_BITFIELD_WORD);                        \
 208       target_flags &= ~MASK_STRICT_ALIGN;                               \
 209     }                                                                   \
 210   else                                                                  \
 211     {                                                                   \
 212       rs6000_current_abi = ABI_V4;                                      \
 213       error ("bad value for -mcall-%s", rs6000_abi_name);               \
 214     }                                                                   \
 215                                                                         \
 216   if (rs6000_sdata_name)                                                \
 217     {                                                                   \
 218       if (!strcmp (rs6000_sdata_name, "none"))                          \
 219         rs6000_sdata = SDATA_NONE;                                      \
 220       else if (!strcmp (rs6000_sdata_name, "data"))                     \
 221         rs6000_sdata = SDATA_DATA;                                      \
 222       else if (!strcmp (rs6000_sdata_name, "default"))                  \
 223         rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV;         \
 224       else if (!strcmp (rs6000_sdata_name, "sysv"))                     \
 225         rs6000_sdata = SDATA_SYSV;                                      \
 226       else if (!strcmp (rs6000_sdata_name, "eabi"))                     \
 227         rs6000_sdata = SDATA_EABI;                                      \
 228       else                                                              \
 229         error ("bad value for -msdata=%s", rs6000_sdata_name);          \
 230     }                                                                   \
 231   else if (DEFAULT_ABI == ABI_V4)                                       \
 232     {                                                                   \
 233       rs6000_sdata = SDATA_DATA;                                        \
 234       rs6000_sdata_name = "data";                                       \
 235     }                                                                   \
 236   else                                                                  \
 237     {                                                                   \
 238       rs6000_sdata = SDATA_NONE;                                        \
 239       rs6000_sdata_name = "none";                                       \
 240     }                                                                   \
 241                                                                         \
 242   if (TARGET_RELOCATABLE &&                                             \
 243       (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV))       \
 244     {                                                                   \
 245       rs6000_sdata = SDATA_DATA;                                        \
 246       error ("-mrelocatable and -msdata=%s are incompatible",           \
 247              rs6000_sdata_name);                                        \
 248     }                                                                   \
 249                                                                         \
 250   else if (flag_pic &&                                                  \
 251            (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV))  \
 252     {                                                                   \
 253       rs6000_sdata = SDATA_DATA;                                        \
 254       error ("-f%s and -msdata=%s are incompatible",                    \
 255              (flag_pic > 1) ? "PIC" : "pic",                            \
 256              rs6000_sdata_name);                                        \
 257     }                                                                   \
 258                                                                         \
 259   if (rs6000_sdata != SDATA_NONE && DEFAULT_ABI != ABI_V4)              \
 260     {                                                                   \
 261       rs6000_sdata = SDATA_NONE;                                        \
 262       error ("-msdata=%s and -mcall-%s are incompatible",               \
 263              rs6000_sdata_name, rs6000_abi_name);                       \
 264     }                                                                   \
 265                                                                         \
 266   targetm.have_srodata_section = rs6000_sdata == SDATA_EABI;            \
 267                                                                         \
 268   if (TARGET_RELOCATABLE && !TARGET_MINIMAL_TOC)                        \
 269     {                                                                   \
 270       target_flags |= MASK_MINIMAL_TOC;                                 \
 271       error ("-mrelocatable and -mno-minimal-toc are incompatible");    \
 272     }                                                                   \
 273                                                                         \
 274   if (TARGET_RELOCATABLE && rs6000_current_abi == ABI_AIX)              \
 275     {                                                                   \
 276       target_flags &= ~MASK_RELOCATABLE;                                \
 277       error ("-mrelocatable and -mcall-%s are incompatible",            \
 278              rs6000_abi_name);                                          \
 279     }                                                                   \
 280                                                                         \
 281   if (flag_pic > 1 && rs6000_current_abi == ABI_AIX)                    \
 282     {                                                                   \
 283       flag_pic = 0;                                                     \
 284       error ("-fPIC and -mcall-%s are incompatible",                    \
 285              rs6000_abi_name);                                          \
 286     }                                                                   \
 287                                                                         \
 288   if (rs6000_current_abi == ABI_AIX && TARGET_LITTLE_ENDIAN)            \
 289     {                                                                   \
 290       target_flags &= ~MASK_LITTLE_ENDIAN;                              \
 291       error ("-mcall-aixdesc must be big endian");                      \
 292     }                                                                   \
 293                                                                         \
 294   /* Treat -fPIC the same as -mrelocatable.  */                         \
 295   if (flag_pic > 1)                                                     \
 296     target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
 297                                                                         \
 298   else if (TARGET_RELOCATABLE)                                          \
 299     flag_pic = 2;                                                       \
 300                                                                         \
 301 } while (0)
 302
 303
 304 /* Override rs6000.h definition.  */
 305 #undef  TARGET_DEFAULT
 306 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
 307
 308 /* Override rs6000.h definition.  */
 309 #undef  PROCESSOR_DEFAULT
 310 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
 311
 312 #define FIXED_R2 1
 313 /* System V.4 uses register 13 as a pointer to the small data area,
 314    so it is not available to the normal user.  */
 315 #define FIXED_R13 1
 316
 317 /* Size of the V.4 varargs area if needed.  */
 318 /* Override rs6000.h definition.  */
 319 #undef  RS6000_VARARGS_AREA
 320 #define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0)
 321
 322 /* Override default big endianism definitions in rs6000.h.  */
 323 #undef  BYTES_BIG_ENDIAN
 324 #undef  WORDS_BIG_ENDIAN
 325 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
 326 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
 327
 328 /* Define this to set the endianness to use in libgcc2.c, which can
 329    not depend on target_flags.  */
 330 #if !defined(_LITTLE_ENDIAN) && !defined(__sun__)
 331 #define LIBGCC2_WORDS_BIG_ENDIAN 1
 332 #else
 333 #define LIBGCC2_WORDS_BIG_ENDIAN 0
 334 #endif
 335
 336 /* Define cutoff for using external functions to save floating point.
 337    Currently on V.4, always use inline stores.  */
 338 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
 339
 340 /* Put jump tables in read-only memory, rather than in .text.  */
 341 #define JUMP_TABLES_IN_TEXT_SECTION 0
 342
 343 /* Prefix and suffix to use to saving floating point.  */
 344 #define SAVE_FP_PREFIX "_savefpr_"
 345 #define SAVE_FP_SUFFIX "_l"
 346
 347 /* Prefix and suffix to use to restoring floating point.  */
 348 #define RESTORE_FP_PREFIX "_restfpr_"
 349 #define RESTORE_FP_SUFFIX "_l"
 350
 351 /* Type used for ptrdiff_t, as a string used in a declaration.  */
 352 #define PTRDIFF_TYPE "int"
 353
 354 /* Type used for wchar_t, as a string used in a declaration.  */
 355 /* Override svr4.h definition.  */
 356 #undef  WCHAR_TYPE
 357 #define WCHAR_TYPE "long int"
 358
 359 /* Width of wchar_t in bits.  */
 360 /* Override svr4.h definition.  */
 361 #undef  WCHAR_TYPE_SIZE
 362 #define WCHAR_TYPE_SIZE 32
 363
 364 /* Make int foo : 8 not cause structures to be aligned to an int boundary.  */
 365 /* Override elfos.h definition.  */
 366 #undef  PCC_BITFIELD_TYPE_MATTERS
 367 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
 368
 369 #undef  BITFIELD_NBYTES_LIMITED
 370 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
 371
 372 /* Define this macro to be the value 1 if instructions will fail to
 373    work if given data not on the nominal alignment.  If instructions
 374    will merely go slower in that case, define this macro as 0.  */
 375 #undef  STRICT_ALIGNMENT
 376 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
 377
 378 /* Alignment in bits of the stack boundary.  Note, in order to allow building
 379    one set of libraries with -mno-eabi instead of eabi libraries and non-eabi
 380    versions, just use 64 as the stack boundary.  */
 381 #undef  STACK_BOUNDARY
 382 #define STACK_BOUNDARY  (TARGET_ALTIVEC_ABI ? 128 : 64)
 383
 384 /* Real stack boundary as mandated by the appropriate ABI.  */
 385 #define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
 386
 387 /* An expression for the alignment of a structure field FIELD if the
 388    alignment computed in the usual way is COMPUTED.  */
 389 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED)                                   \
 390         ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE)     \
 391          ? 128 : COMPUTED)
 392
 393 /* Define this macro as an expression for the alignment of a type
 394    (given by TYPE as a tree node) if the alignment computed in the
 395    usual way is COMPUTED and the alignment explicitly specified was
 396    SPECIFIED.  */
 397 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED)                     \
 398         ((TARGET_ALTIVEC  && TREE_CODE (TYPE) == VECTOR_TYPE)           \
 399          ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128)                     \
 400          : MAX (COMPUTED, SPECIFIED))
 401
 402 #undef  BIGGEST_FIELD_ALIGNMENT
 403
 404 /* Use ELF style section commands.  */
 405
 406 #define TEXT_SECTION_ASM_OP     "\t.section\t\".text\""
 407
 408 #define DATA_SECTION_ASM_OP     "\t.section\t\".data\""
 409
 410 #define BSS_SECTION_ASM_OP      "\t.section\t\".bss\""
 411
 412 /* Override elfos.h definition.  */
 413 #undef  INIT_SECTION_ASM_OP
 414 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
 415
 416 /* Override elfos.h definition.  */
 417 #undef  FINI_SECTION_ASM_OP
 418 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
 419
 420 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
 421
 422 /* Put PC relative got entries in .got2.  */
 423 #define MINIMAL_TOC_SECTION_ASM_OP \
 424   ((TARGET_RELOCATABLE || flag_pic) ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
 425
 426 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
 427 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
 428 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
 429
 430 /* Besides the usual ELF sections, we need a toc section.  */
 431 /* Override elfos.h definition.  */
 432 #undef  EXTRA_SECTIONS
 433 #define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
 434
 435 /* Override elfos.h definition.  */
 436 #undef  EXTRA_SECTION_FUNCTIONS
 437 #define EXTRA_SECTION_FUNCTIONS                                         \
 438   TOC_SECTION_FUNCTION                                                  \
 439   SDATA_SECTION_FUNCTION                                                \
 440   SDATA2_SECTION_FUNCTION                                               \
 441   SBSS_SECTION_FUNCTION                                                 \
 442   INIT_SECTION_FUNCTION                                                 \
 443   FINI_SECTION_FUNCTION
 444
 445 #define TOC_SECTION_FUNCTION                                            \
 446 void                                                                    \
 447 toc_section ()                                                          \
 448 {                                                                       \
 449   if (in_section != in_toc)                                             \
 450     {                                                                   \
 451       in_section = in_toc;                                              \
 452       if (DEFAULT_ABI == ABI_AIX                                        \
 453           && TARGET_MINIMAL_TOC                                         \
 454           && !TARGET_RELOCATABLE)                                       \
 455         {                                                               \
 456           if (! toc_initialized)                                        \
 457             {                                                           \
 458               toc_initialized = 1;                                      \
 459               fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);       \
 460               (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
 461               fprintf (asm_out_file, "\t.tc ");                         \
 462               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
 463               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 464               fprintf (asm_out_file, "\n");                             \
 465                                                                         \
 466               fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
 467               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 468               fprintf (asm_out_file, " = .+32768\n");                   \
 469             }                                                           \
 470           else                                                          \
 471             fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
 472         }                                                               \
 473       else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE)           \
 474         fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);             \
 475       else                                                              \
 476         {                                                               \
 477           fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);   \
 478           if (! toc_initialized)                                        \
 479             {                                                           \
 480               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 481               fprintf (asm_out_file, " = .+32768\n");                   \
 482               toc_initialized = 1;                                      \
 483             }                                                           \
 484         }                                                               \
 485     }                                                                   \
 486 }                                                                       \
 487                                                                         \
 488 extern int in_toc_section PARAMS ((void));                              \
 489 int in_toc_section ()                                                   \
 490 {                                                                       \
 491   return in_section == in_toc;                                          \
 492 }
 493
 494 #define SDATA_SECTION_FUNCTION                                          \
 495 void                                                                    \
 496 sdata_section ()                                                        \
 497 {                                                                       \
 498   if (in_section != in_sdata)                                           \
 499     {                                                                   \
 500       in_section = in_sdata;                                            \
 501       fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP);             \
 502     }                                                                   \
 503 }
 504
 505 #define SDATA2_SECTION_FUNCTION                                         \
 506 void                                                                    \
 507 sdata2_section ()                                                       \
 508 {                                                                       \
 509   if (in_section != in_sdata2)                                          \
 510     {                                                                   \
 511       in_section = in_sdata2;                                           \
 512       fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP);            \
 513     }                                                                   \
 514 }
 515
 516 #define SBSS_SECTION_FUNCTION                                           \
 517 void                                                                    \
 518 sbss_section ()                                                         \
 519 {                                                                       \
 520   if (in_section != in_sbss)                                            \
 521     {                                                                   \
 522       in_section = in_sbss;                                             \
 523       fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP);              \
 524     }                                                                   \
 525 }
 526
 527 #define INIT_SECTION_FUNCTION                                           \
 528 void                                                                    \
 529 init_section ()                                                         \
 530 {                                                                       \
 531   if (in_section != in_init)                                            \
 532     {                                                                   \
 533       in_section = in_init;                                             \
 534       fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP);              \
 535     }                                                                   \
 536 }
 537
 538 #define FINI_SECTION_FUNCTION                                           \
 539 void                                                                    \
 540 fini_section ()                                                         \
 541 {                                                                       \
 542   if (in_section != in_fini)                                            \
 543     {                                                                   \
 544       in_section = in_fini;                                             \
 545       fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP);              \
 546     }                                                                   \
 547 }
 548
 549 /* Override default elf definitions.  */
 550 #undef  TARGET_ASM_SELECT_RTX_SECTION
 551 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
 552 #undef  TARGET_ASM_SELECT_SECTION
 553 #define TARGET_ASM_SELECT_SECTION  rs6000_elf_select_section
 554 #define TARGET_ASM_UNIQUE_SECTION  rs6000_elf_unique_section
 555
 556 /* Return nonzero if this entry is to be written into the constant pool
 557    in a special way.  We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
 558    containing one of them.  If -mfp-in-toc (the default), we also do
 559    this for floating-point constants.  We actually can only do this
 560    if the FP formats of the target and host machines are the same, but
 561    we can't check that since not every file that uses
 562    GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
 563
 564    Unlike AIX, we don't key off of -mminimal-toc, but instead do not
 565    allow floating point constants in the TOC if -mrelocatable.  */
 566
 567 #undef  ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
 568 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE)                        \
 569   (TARGET_TOC                                                           \
 570    && (GET_CODE (X) == SYMBOL_REF                                       \
 571        || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS      \
 572            && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF)           \
 573        || GET_CODE (X) == LABEL_REF                                     \
 574        || (GET_CODE (X) == CONST_INT                                    \
 575            && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode))      \
 576        || (!TARGET_NO_FP_IN_TOC                                         \
 577            && !TARGET_RELOCATABLE                                       \
 578            && GET_CODE (X) == CONST_DOUBLE                              \
 579            && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT               \
 580            && BITS_PER_WORD == HOST_BITS_PER_INT)))
 581
 582 /* These macros generate the special .type and .size directives which
 583    are used to set the corresponding fields of the linker symbol table
 584    entries in an ELF object file under SVR4.  These macros also output
 585    the starting labels for the relevant functions/objects.  */
 586
 587 /* Write the extra assembler code needed to declare a function properly.
 588    Some svr4 assemblers need to also have something extra said about the
 589    function's return value.  We allow for that here.  */
 590
 591 extern int rs6000_pic_labelno;
 592
 593 /* Override elfos.h definition.  */
 594 #undef  ASM_DECLARE_FUNCTION_NAME
 595 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 596   do {                                                                  \
 597     const char *const init_ptr = (TARGET_64BIT) ? ".quad" : ".long";    \
 598                                                                         \
 599     if (TARGET_RELOCATABLE                                              \
 600         && (get_pool_size () != 0 || current_function_profile)          \
 601         && uses_TOC())                                                  \
 602       {                                                                 \
 603         char buf[256];                                                  \
 604                                                                         \
 605         (*targetm.asm_out.internal_label) (FILE, "LCL", rs6000_pic_labelno); \
 606                                                                         \
 607         ASM_GENERATE_INTERNAL_LABEL (buf, "LCTOC", 1);                  \
 608         fprintf (FILE, "\t%s ", init_ptr);                              \
 609         assemble_name (FILE, buf);                                      \
 610         putc ('-', FILE);                                               \
 611         ASM_GENERATE_INTERNAL_LABEL (buf, "LCF", rs6000_pic_labelno);   \
 612         assemble_name (FILE, buf);                                      \
 613         putc ('\n', FILE);                                              \
 614       }                                                                 \
 615                                                                         \
 616     ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function");                 \
 617     ASM_DECLARE_RESULT (FILE, DECL_RESULT (DECL));                      \
 618                                                                         \
 619     if (DEFAULT_ABI == ABI_AIX)                                         \
 620       {                                                                 \
 621         const char *desc_name, *orig_name;                              \
 622                                                                         \
 623         orig_name = (*targetm.strip_name_encoding) (NAME);              \
 624         desc_name = orig_name;                                          \
 625         while (*desc_name == '.')                                       \
 626           desc_name++;                                                  \
 627                                                                         \
 628         if (TREE_PUBLIC (DECL))                                         \
 629           fprintf (FILE, "\t.globl %s\n", desc_name);                   \
 630                                                                         \
 631         fprintf (FILE, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);             \
 632         fprintf (FILE, "%s:\n", desc_name);                             \
 633         fprintf (FILE, "\t%s %s\n", init_ptr, orig_name);               \
 634         fprintf (FILE, "\t%s _GLOBAL_OFFSET_TABLE_\n", init_ptr);       \
 635         if (DEFAULT_ABI == ABI_AIX)                                     \
 636           fprintf (FILE, "\t%s 0\n", init_ptr);                         \
 637         fprintf (FILE, "\t.previous\n");                                \
 638       }                                                                 \
 639     ASM_OUTPUT_LABEL (FILE, NAME);                                      \
 640   } while (0)
 641
 642 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
 643    flag.  The LOCAL_LABEL_PREFIX variable is used by dbxelf.h.  */
 644
 645 #define LOCAL_LABEL_PREFIX "."
 646 #define USER_LABEL_PREFIX ""
 647
 648 /* svr4.h overrides (*targetm.asm_out.internal_label).  */
 649
 650 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX)   \
 651   asm_fprintf (FILE, "%L%s", PREFIX)
 652
 653 /* Globalizing directive for a label.  */
 654 #define GLOBAL_ASM_OP "\t.globl "
 655
 656 /* This says how to output assembler code to declare an
 657    uninitialized internal linkage data object.  Under SVR4,
 658    the linker seems to want the alignment of data objects
 659    to depend on their types.  We do exactly that here.  */
 660
 661 #define LOCAL_ASM_OP    "\t.local\t"
 662
 663 #define LCOMM_ASM_OP    "\t.lcomm\t"
 664
 665 /* Override elfos.h definition.  */
 666 #undef  ASM_OUTPUT_ALIGNED_LOCAL
 667 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \
 668 do {                                                                    \
 669   if (rs6000_sdata != SDATA_NONE && (SIZE) > 0                          \
 670       && (SIZE) <= g_switch_value)                                      \
 671     {                                                                   \
 672       sbss_section ();                                                  \
 673       ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT));      \
 674       ASM_OUTPUT_LABEL (FILE, NAME);                                    \
 675       ASM_OUTPUT_SKIP (FILE, SIZE);                                     \
 676       if (!flag_inhibit_size_directive && (SIZE) > 0)                   \
 677         ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE);                   \
 678     }                                                                   \
 679   else                                                                  \
 680     {                                                                   \
 681       fprintf (FILE, "%s", LCOMM_ASM_OP);                               \
 682       assemble_name ((FILE), (NAME));                                   \
 683       fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT);    \
 684     }                                                                   \
 685   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");                     \
 686 } while (0)
 687
 688 /* Describe how to emit uninitialized external linkage items.  */
 689 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)           \
 690 do {                                                                    \
 691   (*targetm.asm_out.globalize_label) (FILE, NAME);                      \
 692   ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN);                   \
 693 } while (0)
 694
 695 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
 696 /* To support -falign-* switches we need to use .p2align so
 697    that alignment directives in code sections will be padded
 698    with no-op instructions, rather than zeroes.  */
 699 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP)                    \
 700   if ((LOG) != 0)                                                       \
 701     {                                                                   \
 702       if ((MAX_SKIP) == 0)                                              \
 703         fprintf ((FILE), "\t.p2align %d\n", (LOG));                     \
 704       else                                                              \
 705         fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));     \
 706     }
 707 #endif
 708
 709 /* This is how to output code to push a register on the stack.
 710    It need not be very fast code.
 711
 712    On the rs6000, we must keep the backchain up to date.  In order
 713    to simplify things, always allocate 16 bytes for a push (System V
 714    wants to keep stack aligned to a 16 byte boundary).  */
 715
 716 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO)                                \
 717 do {                                                                    \
 718   if (DEFAULT_ABI == ABI_V4)                                            \
 719     asm_fprintf (FILE,                                                  \
 720                  "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n",     \
 721                  reg_names[1], reg_names[1], reg_names[REGNO],          \
 722                  reg_names[1]);                                         \
 723 } while (0)
 724
 725 /* This is how to output an insn to pop a register from the stack.
 726    It need not be very fast code.  */
 727
 728 #define ASM_OUTPUT_REG_POP(FILE, REGNO)                                 \
 729 do {                                                                    \
 730   if (DEFAULT_ABI == ABI_V4)                                            \
 731     asm_fprintf (FILE,                                                  \
 732                  "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n",        \
 733                  reg_names[REGNO], reg_names[1], reg_names[1],          \
 734                  reg_names[1]);                                         \
 735 } while (0)
 736
 737 /* Switch  Recognition by gcc.c.  Add -G xx support.  */
 738
 739 /* Override svr4.h definition.  */
 740 #undef  SWITCH_TAKES_ARG
 741 #define SWITCH_TAKES_ARG(CHAR)                                          \
 742   ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o'                      \
 743    || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u'                   \
 744    || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x'                   \
 745    || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V'                   \
 746    || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
 747
 748 /* Output .file.  */
 749 /* Override elfos.h definition.  */
 750 #undef  ASM_FILE_START
 751 #define ASM_FILE_START(FILE)                                            \
 752 do {                                                                    \
 753   output_file_directive ((FILE), main_input_filename);                  \
 754   rs6000_file_start (FILE, TARGET_CPU_DEFAULT);                         \
 755 } while (0)
 756
 757
 758 extern int fixuplabelno;
 759
 760 /* Handle constructors specially for -mrelocatable.  */
 761 #define TARGET_ASM_CONSTRUCTOR  rs6000_elf_asm_out_constructor
 762 #define TARGET_ASM_DESTRUCTOR   rs6000_elf_asm_out_destructor
 763
 764 /* This is the end of what might become sysv4.h.  */
 765
 766 /* Use DWARF 2 debugging information by default.  */
 767 #undef  PREFERRED_DEBUGGING_TYPE
 768 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 769
 770 /* Historically we have also supported stabs debugging.  */
 771 #define DBX_DEBUGGING_INFO 1
 772
 773 #define TARGET_ENCODE_SECTION_INFO  rs6000_elf_encode_section_info
 774 #define TARGET_STRIP_NAME_ENCODING  rs6000_elf_strip_name_encoding
 775 #define TARGET_IN_SMALL_DATA_P  rs6000_elf_in_small_data_p
 776 #define TARGET_SECTION_TYPE_FLAGS  rs6000_elf_section_type_flags
 777
 778 /* The ELF version doesn't encode [DS] or whatever at the end of symbols.  */
 779
 780 #define RS6000_OUTPUT_BASENAME(FILE, NAME)      \
 781     assemble_name (FILE, NAME)
 782
 783 /* This is how to output a reference to a user-level label named NAME.
 784    `assemble_name' uses this.  */
 785
 786 /* Override elfos.h definition.  */
 787 #undef  ASM_OUTPUT_LABELREF
 788 #define ASM_OUTPUT_LABELREF(FILE,NAME)          \
 789 do {                                            \
 790   const char *_name = NAME;                     \
 791   if (*_name == '@')                            \
 792     _name++;                                    \
 793                                                 \
 794   if (*_name == '*')                            \
 795     fprintf (FILE, "%s", _name + 1);            \
 796   else                                          \
 797     asm_fprintf (FILE, "%U%s", _name);          \
 798 } while (0)
 799
 800 /* But, to make this work, we have to output the stabs for the function
 801    name *first*...  */
 802
 803 #define DBX_FUNCTION_FIRST
 804
 805 /* This is the end of what might become sysv4dbx.h.  */
 806
 807 #ifndef TARGET_VERSION
 808 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
 809 #endif
 810 \f
 811 #ifndef TARGET_OS_CPP_BUILTINS
 812 #define TARGET_OS_CPP_BUILTINS()          \
 813   do                                      \
 814     {                                     \
 815       builtin_define_std ("PPC");         \
 816       builtin_define_std ("unix");        \
 817       builtin_define ("__svr4__");        \
 818       builtin_assert ("system=unix");     \
 819       builtin_assert ("system=svr4");     \
 820       builtin_assert ("cpu=powerpc");     \
 821       builtin_assert ("machine=powerpc"); \
 822     }                                     \
 823   while (0)
 824 #endif
 825
 826 /* Pass various options to the assembler.  */
 827 /* Override svr4.h definition.  */
 828 #undef  ASM_SPEC
 829 #define ASM_SPEC "%(asm_cpu) \
 830 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
 831 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
 832 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
 833 %{memb|msdata|msdata=eabi: -memb} \
 834 %{mlittle|mlittle-endian:-mlittle; \
 835   mbig|mbig-endian      :-mbig;    \
 836   mcall-aixdesc |                  \
 837   mcall-freebsd |                  \
 838   mcall-netbsd  |                  \
 839   mcall-linux   |                  \
 840   mcall-gnu             :-mbig;    \
 841   mcall-i960-old        :-mlittle}"
 842
 843 #define CC1_ENDIAN_BIG_SPEC ""
 844
 845 #define CC1_ENDIAN_LITTLE_SPEC "\
 846 %{!mstrict-align: %{!mno-strict-align: \
 847     %{!mcall-i960-old: \
 848         -mstrict-align \
 849     } \
 850 }}"
 851
 852 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
 853
 854 /* Pass -G xxx to the compiler and set correct endian mode.  */
 855 #define CC1_SPEC "%{G*} \
 856 %{mlittle|mlittle-endian: %(cc1_endian_little);           \
 857   mbig   |mbig-endian   : %(cc1_endian_big);              \
 858   mcall-aixdesc |                                         \
 859   mcall-freebsd |                                         \
 860   mcall-netbsd  |                                         \
 861   mcall-linux   |                                         \
 862   mcall-gnu             : -mbig %(cc1_endian_big);        \
 863   mcall-i960-old        : -mlittle %(cc1_endian_little);  \
 864                         : %(cc1_endian_default)}          \
 865 %{mno-sdata: -msdata=none } \
 866 %{meabi: %{!mcall-*: -mcall-sysv }} \
 867 %{!meabi: %{!mno-eabi: \
 868     %{mrelocatable: -meabi } \
 869     %{mcall-freebsd: -mno-eabi } \
 870     %{mcall-i960-old: -meabi } \
 871     %{mcall-linux: -mno-eabi } \
 872     %{mcall-gnu: -mno-eabi } \
 873     %{mcall-netbsd: -mno-eabi }}} \
 874 %{msdata: -msdata=default} \
 875 %{mno-sdata: -msdata=none} \
 876 %{profile: -p}"
 877
 878 /* Don't put -Y P,<path> for cross compilers.  */
 879 #ifndef CROSS_COMPILE
 880 #define LINK_PATH_SPEC "\
 881 %{!R*:%{L*:-R %*}} \
 882 %{!nostdlib: %{!YP,*: \
 883     %{compat-bsd: \
 884         %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 885         %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
 886         %{!R*: %{!L*: -R /usr/ucblib}} \
 887     %{!compat-bsd: \
 888         %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 889         %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
 890
 891 #else
 892 #define LINK_PATH_SPEC ""
 893 #endif
 894
 895 /* Default starting address if specified.  */
 896 #define LINK_START_SPEC "\
 897 %{mads         : %(link_start_ads)         ; \
 898   myellowknife : %(link_start_yellowknife) ; \
 899   mmvme        : %(link_start_mvme)        ; \
 900   msim         : %(link_start_sim)         ; \
 901   mwindiss     : %(link_start_windiss)     ; \
 902   mcall-freebsd: %(link_start_freebsd)     ; \
 903   mcall-linux  : %(link_start_linux)       ; \
 904   mcall-gnu    : %(link_start_gnu)         ; \
 905   mcall-netbsd : %(link_start_netbsd)      ; \
 906                : %(link_start_default)     }"
 907
 908 #define LINK_START_DEFAULT_SPEC ""
 909
 910 /* Override svr4.h definition.  */
 911 #undef  LINK_SPEC
 912 #define LINK_SPEC "\
 913 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
 914 %{YP,*} %{R*} \
 915 %{Qy:} %{!Qn:-Qy} \
 916 %(link_shlib) \
 917 %{!Wl,-T*: %{!T*: %(link_start) }} \
 918 %(link_target) \
 919 %(link_os)"
 920
 921 /* For now, turn off shared libraries by default.  */
 922 #ifndef SHARED_LIB_SUPPORT
 923 #define NO_SHARED_LIB_SUPPORT
 924 #endif
 925
 926 #ifndef NO_SHARED_LIB_SUPPORT
 927 /* Shared libraries are default.  */
 928 #define LINK_SHLIB_SPEC "\
 929 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
 930 %{mshlib: } \
 931 %{static:-dn -Bstatic} \
 932 %{shared:-G -dy -z text} \
 933 %{symbolic:-Bsymbolic -G -dy -z text}"
 934
 935 #else
 936 /* Shared libraries are not default.  */
 937 #define LINK_SHLIB_SPEC "\
 938 %{mshlib: %(link_path) } \
 939 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
 940 %{static: } \
 941 %{shared:-G -dy -z text %(link_path) } \
 942 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
 943 #endif
 944
 945 /* Override the default target of the linker.  */
 946 #define LINK_TARGET_SPEC "\
 947 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
 948 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
 949     %{mcall-i960-old: --oformat elf32-powerpcle} \
 950   }}}}"
 951
 952 /* Any specific OS flags.  */
 953 #define LINK_OS_SPEC "\
 954 %{mads         : %(link_os_ads)         ; \
 955   myellowknife : %(link_os_yellowknife) ; \
 956   mmvme        : %(link_os_mvme)        ; \
 957   msim         : %(link_os_sim)         ; \
 958   mwindiss     : %(link_os_windiss)     ; \
 959   mcall-freebsd: %(link_os_freebsd)     ; \
 960   mcall-linux  : %(link_os_linux)       ; \
 961   mcall-gnu    : %(link_os_gnu)         ; \
 962   mcall-netbsd : %(link_os_netbsd)      ; \
 963                : %(link_os_default)     }"
 964
 965 #define LINK_OS_DEFAULT_SPEC ""
 966
 967 #define CPP_SYSV_SPEC \
 968 "%{mrelocatable*: -D_RELOCATABLE} \
 969 %{fpic: -D__PIC__=1 -D__pic__=1} \
 970 %{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}}"
 971
 972 /* Override rs6000.h definition.  */
 973 #undef  CPP_SPEC
 974 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) \
 975 %{mads         : %(cpp_os_ads)         ; \
 976   myellowknife : %(cpp_os_yellowknife) ; \
 977   mmvme        : %(cpp_os_mvme)        ; \
 978   msim         : %(cpp_os_sim)         ; \
 979   mwindiss     : %(cpp_os_windiss)     ; \
 980   mcall-freebsd: %(cpp_os_freebsd)     ; \
 981   mcall-linux  : %(cpp_os_linux)       ; \
 982   mcall-gnu    : %(cpp_os_gnu)         ; \
 983   mcall-netbsd : %(cpp_os_netbsd)      ; \
 984                : %(cpp_os_default)     }"
 985
 986 #define CPP_OS_DEFAULT_SPEC ""
 987
 988 /* Override svr4.h definition.  */
 989 #undef  STARTFILE_SPEC
 990 #define STARTFILE_SPEC "\
 991 %{mads         : %(startfile_ads)         ; \
 992   myellowknife : %(startfile_yellowknife) ; \
 993   mmvme        : %(startfile_mvme)        ; \
 994   msim         : %(startfile_sim)         ; \
 995   mwindiss     : %(startfile_windiss)     ; \
 996   mcall-freebsd: %(startfile_freebsd)     ; \
 997   mcall-linux  : %(startfile_linux)       ; \
 998   mcall-gnu    : %(startfile_gnu)         ; \
 999   mcall-netbsd : %(startfile_netbsd)      ; \
1000                : %(startfile_default)     }"
1001
1002 #define STARTFILE_DEFAULT_SPEC ""
1003
1004 /* Override svr4.h definition.  */
1005 #undef  LIB_SPEC
1006 #define LIB_SPEC "\
1007 %{mads         : %(lib_ads)         ; \
1008   myellowknife : %(lib_yellowknife) ; \
1009   mmvme        : %(lib_mvme)        ; \
1010   msim         : %(lib_sim)         ; \
1011   mwindiss     : %(lib_windiss)     ; \
1012   mcall-freebsd: %(lib_freebsd)     ; \
1013   mcall-linux  : %(lib_linux)       ; \
1014   mcall-gnu    : %(lib_gnu)         ; \
1015   mcall-netbsd : %(lib_netbsd)      ; \
1016                : %(lib_default)     }"
1017
1018 #define LIB_DEFAULT_SPEC ""
1019
1020 /* Override svr4.h definition.  */
1021 #undef  ENDFILE_SPEC
1022 #define ENDFILE_SPEC "\
1023 %{mads         : crtsavres.o%s        %(endfile_ads)         ; \
1024   myellowknife : crtsavres.o%s        %(endfile_yellowknife) ; \
1025   mmvme        : crtsavres.o%s        %(endfile_mvme)        ; \
1026   msim         : crtsavres.o%s        %(endfile_sim)         ; \
1027   mwindiss     :                      %(endfile_windiss)     ; \
1028   mcall-freebsd: crtsavres.o%s        %(endfile_freebsd)     ; \
1029   mcall-linux  : crtsavres.o%s        %(endfile_linux)       ; \
1030   mcall-gnu    : crtsavres.o%s        %(endfile_gnu)         ; \
1031   mcall-netbsd : crtsavres.o%s        %(endfile_netbsd)      ; \
1032                : %(crtsavres_default) %(endfile_default)     }"
1033
1034 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1035
1036 #define ENDFILE_DEFAULT_SPEC ""
1037
1038 /* Motorola ADS support.  */
1039 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1040
1041 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1042
1043 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1044
1045 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1046
1047 #define LINK_OS_ADS_SPEC ""
1048
1049 #define CPP_OS_ADS_SPEC ""
1050
1051 /* Motorola Yellowknife support.  */
1052 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1053
1054 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1055
1056 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1057
1058 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1059
1060 #define LINK_OS_YELLOWKNIFE_SPEC ""
1061
1062 #define CPP_OS_YELLOWKNIFE_SPEC ""
1063
1064 /* Motorola MVME support.  */
1065 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1066
1067 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1068
1069 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1070
1071 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1072
1073 #define LINK_OS_MVME_SPEC ""
1074
1075 #define CPP_OS_MVME_SPEC ""
1076
1077 /* PowerPC simulator based on netbsd system calls support.  */
1078 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1079
1080 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1081
1082 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1083
1084 #define LINK_START_SIM_SPEC ""
1085
1086 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1087
1088 #define CPP_OS_SIM_SPEC ""
1089
1090 /* FreeBSD support.  */
1091
1092 #define CPP_OS_FREEBSD_SPEC     "\
1093   -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1094   -Acpu=powerpc -Amachine=powerpc"
1095
1096 #define STARTFILE_FREEBSD_SPEC  FBSD_STARTFILE_SPEC
1097 #define ENDFILE_FREEBSD_SPEC    FBSD_ENDFILE_SPEC
1098 #define LIB_FREEBSD_SPEC        FBSD_LIB_SPEC
1099 #define LINK_START_FREEBSD_SPEC ""
1100
1101 #define LINK_OS_FREEBSD_SPEC "\
1102   %{symbolic:-Bsymbolic}"
1103
1104 /* GNU/Linux support.  */
1105 #ifdef USE_GNULIBC_1
1106 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1107 %{!mnewlib: -lc }"
1108 #else
1109 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1110 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1111 %{profile:-lc_p} %{!profile:-lc}}}"
1112 #endif
1113
1114 #ifdef USE_GNULIBC_1
1115 #define STARTFILE_LINUX_SPEC "\
1116 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1117 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1118 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1119 #else
1120 #define STARTFILE_LINUX_SPEC "\
1121 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1122 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1123 %{static:crtbeginT.o%s} \
1124 %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
1125 #endif
1126
1127 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1128 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1129
1130 #define LINK_START_LINUX_SPEC ""
1131
1132 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1133   %{rdynamic:-export-dynamic} \
1134   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1135
1136 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
1137 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1138 #endif
1139
1140 #ifdef USE_GNULIBC_1
1141 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1142 %{!undef:                                                         \
1143   %{!ansi:                                                        \
1144     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1145     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1146 -Asystem=unix -Asystem=posix"
1147 #else
1148 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1149 %{!undef:                                                         \
1150   %{!ansi:                                                        \
1151     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1152     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1153 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1154 #endif
1155
1156 /* GNU/Hurd support.  */
1157 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1158 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1159 %{profile:-lc_p} %{!profile:-lc}}}"
1160
1161 #define STARTFILE_GNU_SPEC "\
1162 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1163 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1164 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1165 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1166
1167 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1168 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1169
1170 #define LINK_START_GNU_SPEC ""
1171
1172 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1173   %{rdynamic:-export-dynamic} \
1174   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1175
1176 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__    \
1177 %{!undef:                                                       \
1178   %{!ansi: -Dunix -D__unix}}                                    \
1179 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1180
1181 /* NetBSD support.  */
1182 #define LIB_NETBSD_SPEC "\
1183 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1184
1185 #define STARTFILE_NETBSD_SPEC "\
1186 ncrti.o%s crt0.o%s \
1187 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1188
1189 #define ENDFILE_NETBSD_SPEC "\
1190 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1191 ncrtn.o%s"
1192
1193 #define LINK_START_NETBSD_SPEC "\
1194 "
1195
1196 #define LINK_OS_NETBSD_SPEC "\
1197 %{!shared: %{!static: \
1198   %{rdynamic:-export-dynamic} \
1199   %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1200
1201 #define CPP_OS_NETBSD_SPEC "\
1202 -D__powerpc__ -D__NetBSD__ -D__ELF__ -D__KPRINTF_ATTRIBUTE__"
1203
1204 /* WindISS support.  */
1205
1206 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1207
1208 #define CPP_OS_WINDISS_SPEC "\
1209 -D__rtasim \
1210 -D__EABI__ \
1211 -D__ppc \
1212 %{!msoft-float: -D__hardfp} \
1213 "
1214
1215 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1216
1217 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1218
1219 #define LINK_START_WINDISS_SPEC ""
1220
1221 #define LINK_OS_WINDISS_SPEC ""
1222
1223 /* Define any extra SPECS that the compiler needs to generate.  */
1224 /* Override rs6000.h definition.  */
1225 #undef  SUBTARGET_EXTRA_SPECS
1226 #define SUBTARGET_EXTRA_SPECS                                           \
1227   { "cpp_sysv",                 CPP_SYSV_SPEC },                        \
1228   { "crtsavres_default",        CRTSAVRES_DEFAULT_SPEC },              \
1229   { "lib_ads",                  LIB_ADS_SPEC },                         \
1230   { "lib_yellowknife",          LIB_YELLOWKNIFE_SPEC },                 \
1231   { "lib_mvme",                 LIB_MVME_SPEC },                        \
1232   { "lib_sim",                  LIB_SIM_SPEC },                         \
1233   { "lib_freebsd",              LIB_FREEBSD_SPEC },                     \
1234   { "lib_gnu",                  LIB_GNU_SPEC },                         \
1235   { "lib_linux",                LIB_LINUX_SPEC },                       \
1236   { "lib_netbsd",               LIB_NETBSD_SPEC },                      \
1237   { "lib_windiss",              LIB_WINDISS_SPEC },                     \
1238   { "lib_default",              LIB_DEFAULT_SPEC },                     \
1239   { "startfile_ads",            STARTFILE_ADS_SPEC },                   \
1240   { "startfile_yellowknife",    STARTFILE_YELLOWKNIFE_SPEC },           \
1241   { "startfile_mvme",           STARTFILE_MVME_SPEC },                  \
1242   { "startfile_sim",            STARTFILE_SIM_SPEC },                   \
1243   { "startfile_freebsd",        STARTFILE_FREEBSD_SPEC },               \
1244   { "startfile_gnu",            STARTFILE_GNU_SPEC },                   \
1245   { "startfile_linux",          STARTFILE_LINUX_SPEC },                 \
1246   { "startfile_netbsd",         STARTFILE_NETBSD_SPEC },                \
1247   { "startfile_windiss",        STARTFILE_WINDISS_SPEC },               \
1248   { "startfile_default",        STARTFILE_DEFAULT_SPEC },               \
1249   { "endfile_ads",              ENDFILE_ADS_SPEC },                     \
1250   { "endfile_yellowknife",      ENDFILE_YELLOWKNIFE_SPEC },             \
1251   { "endfile_mvme",             ENDFILE_MVME_SPEC },                    \
1252   { "endfile_sim",              ENDFILE_SIM_SPEC },                     \
1253   { "endfile_freebsd",          ENDFILE_FREEBSD_SPEC },                 \
1254   { "endfile_gnu",              ENDFILE_GNU_SPEC },                     \
1255   { "endfile_linux",            ENDFILE_LINUX_SPEC },                   \
1256   { "endfile_netbsd",           ENDFILE_NETBSD_SPEC },                  \
1257   { "endfile_windiss",          ENDFILE_WINDISS_SPEC },                 \
1258   { "endfile_default",          ENDFILE_DEFAULT_SPEC },                 \
1259   { "link_path",                LINK_PATH_SPEC },                       \
1260   { "link_shlib",               LINK_SHLIB_SPEC },                      \
1261   { "link_target",              LINK_TARGET_SPEC },                     \
1262   { "link_start",               LINK_START_SPEC },                      \
1263   { "link_start_ads",           LINK_START_ADS_SPEC },                  \
1264   { "link_start_yellowknife",   LINK_START_YELLOWKNIFE_SPEC },          \
1265   { "link_start_mvme",          LINK_START_MVME_SPEC },                 \
1266   { "link_start_sim",           LINK_START_SIM_SPEC },                  \
1267   { "link_start_freebsd",       LINK_START_FREEBSD_SPEC },              \
1268   { "link_start_gnu",           LINK_START_GNU_SPEC },                  \
1269   { "link_start_linux",         LINK_START_LINUX_SPEC },                \
1270   { "link_start_netbsd",        LINK_START_NETBSD_SPEC },               \
1271   { "link_start_windiss",       LINK_START_WINDISS_SPEC },              \
1272   { "link_start_default",       LINK_START_DEFAULT_SPEC },              \
1273   { "link_os",                  LINK_OS_SPEC },                         \
1274   { "link_os_ads",              LINK_OS_ADS_SPEC },                     \
1275   { "link_os_yellowknife",      LINK_OS_YELLOWKNIFE_SPEC },             \
1276   { "link_os_mvme",             LINK_OS_MVME_SPEC },                    \
1277   { "link_os_sim",              LINK_OS_SIM_SPEC },                     \
1278   { "link_os_freebsd",          LINK_OS_FREEBSD_SPEC },                 \
1279   { "link_os_linux",            LINK_OS_LINUX_SPEC },                   \
1280   { "link_os_gnu",              LINK_OS_GNU_SPEC },                     \
1281   { "link_os_netbsd",           LINK_OS_NETBSD_SPEC },                  \
1282   { "link_os_windiss",          LINK_OS_WINDISS_SPEC },                 \
1283   { "link_os_default",          LINK_OS_DEFAULT_SPEC },                 \
1284   { "cc1_endian_big",           CC1_ENDIAN_BIG_SPEC },                  \
1285   { "cc1_endian_little",        CC1_ENDIAN_LITTLE_SPEC },               \
1286   { "cc1_endian_default",       CC1_ENDIAN_DEFAULT_SPEC },              \
1287   { "cpp_os_ads",               CPP_OS_ADS_SPEC },                      \
1288   { "cpp_os_yellowknife",       CPP_OS_YELLOWKNIFE_SPEC },              \
1289   { "cpp_os_mvme",              CPP_OS_MVME_SPEC },                     \
1290   { "cpp_os_sim",               CPP_OS_SIM_SPEC },                      \
1291   { "cpp_os_freebsd",           CPP_OS_FREEBSD_SPEC },                  \
1292   { "cpp_os_gnu",               CPP_OS_GNU_SPEC },                      \
1293   { "cpp_os_linux",             CPP_OS_LINUX_SPEC },                    \
1294   { "cpp_os_netbsd",            CPP_OS_NETBSD_SPEC },                   \
1295   { "cpp_os_windiss",           CPP_OS_WINDISS_SPEC },                  \
1296   { "cpp_os_default",           CPP_OS_DEFAULT_SPEC },
1297
1298 /* Define this macro as a C expression for the initializer of an
1299    array of string to tell the driver program which options are
1300    defaults for this target and thus do not need to be handled
1301    specially when using `MULTILIB_OPTIONS'.
1302
1303    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1304    the target makefile fragment or if none of the options listed in
1305    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
1306
1307 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1308
1309 /* Define this macro if the code for function profiling should come
1310    before the function prologue.  Normally, the profiling code comes
1311    after.  */
1312 #define PROFILE_BEFORE_PROLOGUE 1
1313
1314 /* Function name to call to do profiling.  */
1315 #define RS6000_MCOUNT "_mcount"
1316
1317 /* Define this macro (to a value of 1) if you want to support the
1318    Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1319    pack(pop)'.  The pack(push,<n>) pragma specifies the maximum
1320    alignment (in bytes) of fields within a structure, in much the
1321    same way as the __aligned__' and __packed__' __attribute__'s
1322    do.  A pack value of zero resets the behavior to the default.
1323    Successive invocations of this pragma cause the previous values to
1324    be stacked, so that invocations of #pragma pack(pop)' will return
1325    to the previous value.  */
1326
1327 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1328
1329 /* Define library calls for quad FP operations.  These are all part of the
1330    PowerPC 32bit ABI.  */
1331 #define ADDTF3_LIBCALL "_q_add"
1332 #define DIVTF3_LIBCALL "_q_div"
1333 #define EXTENDDFTF2_LIBCALL "_q_dtoq"
1334 #define EQTF2_LIBCALL "_q_feq"
1335 #define GETF2_LIBCALL "_q_fge"
1336 #define GTTF2_LIBCALL "_q_fgt"
1337 #define LETF2_LIBCALL "_q_fle"
1338 #define LTTF2_LIBCALL "_q_flt"
1339 #define NETF2_LIBCALL "_q_fne"
1340 #define FLOATSITF2_LIBCALL "_q_itoq"
1341 #define MULTF3_LIBCALL "_q_mul"
1342 #define NEGTF2_LIBCALL "_q_neg"
1343 #define TRUNCTFDF2_LIBCALL "_q_qtod"
1344 #define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi"
1345 #define TRUNCTFSF2_LIBCALL "_q_qtos"
1346 #define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou"
1347 #define SQRTTF_LIBCALL "_q_sqrt"
1348 #define EXTENDSFTF2_LIBCALL "_q_stoq"
1349 #define SUBTF3_LIBCALL "_q_sub"
1350 #define FLOATUNSSITF2_LIBCALL "_q_utoq"
1351
1352 #define INIT_TARGET_OPTABS                                              \
1353   do {                                                                  \
1354     if (TARGET_HARD_FLOAT)                                              \
1355       {                                                                 \
1356         add_optab->handlers[(int) TFmode].libfunc                       \
1357           = init_one_libfunc (ADDTF3_LIBCALL);                          \
1358         sub_optab->handlers[(int) TFmode].libfunc                       \
1359           = init_one_libfunc (SUBTF3_LIBCALL);                          \
1360         neg_optab->handlers[(int) TFmode].libfunc                       \
1361           = init_one_libfunc (NEGTF2_LIBCALL);                          \
1362         smul_optab->handlers[(int) TFmode].libfunc                      \
1363           = init_one_libfunc (MULTF3_LIBCALL);                          \
1364         sdiv_optab->handlers[(int) TFmode].libfunc                      \
1365           = init_one_libfunc (DIVTF3_LIBCALL);                          \
1366         eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL);               \
1367         netf2_libfunc = init_one_libfunc (NETF2_LIBCALL);               \
1368         gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL);               \
1369         getf2_libfunc = init_one_libfunc (GETF2_LIBCALL);               \
1370         lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL);               \
1371         letf2_libfunc = init_one_libfunc (LETF2_LIBCALL);               \
1372         trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL);     \
1373         trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL);     \
1374         extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL);   \
1375         extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL);   \
1376         floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL);      \
1377         fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL);    \
1378         fixunstfsi_libfunc                                              \
1379           = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL);               \
1380         if (TARGET_PPC_GPOPT || TARGET_POWER2)                          \
1381           sqrt_optab->handlers[(int) TFmode].libfunc                    \
1382             = init_one_libfunc (SQRTTF_LIBCALL);                        \
1383       }                                                                 \
1384   } while (0)
1385
1386 /* Select a format to encode pointers in exception handling data.  CODE
1387    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
1388    true if the symbol may be affected by dynamic relocations.  */
1389 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)                            \
1390   ((flag_pic || TARGET_RELOCATABLE)                                          \
1391    ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1392    : DW_EH_PE_absptr)
1393
1394 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1395
1396 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1397
1398 /* Generate entries in .fixup for relocatable addresses.  */
1399 #define RELOCATABLE_NEEDS_FIXUP