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
   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 } while (0)
 686
 687 /* Describe how to emit uninitialized external linkage items.  */
 688 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)           \
 689 do {                                                                    \
 690   (*targetm.asm_out.globalize_label) (FILE, NAME);                      \
 691   ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN);                   \
 692 } while (0)
 693
 694 /* This is how to output code to push a register on the stack.
 695    It need not be very fast code.
 696
 697    On the rs6000, we must keep the backchain up to date.  In order
 698    to simplify things, always allocate 16 bytes for a push (System V
 699    wants to keep stack aligned to a 16 byte boundary).  */
 700
 701 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO)                                \
 702 do {                                                                    \
 703   if (DEFAULT_ABI == ABI_V4)                                            \
 704     asm_fprintf (FILE,                                                  \
 705                  "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n",     \
 706                  reg_names[1], reg_names[1], reg_names[REGNO],          \
 707                  reg_names[1]);                                         \
 708 } while (0)
 709
 710 /* This is how to output an insn to pop a register from the stack.
 711    It need not be very fast code.  */
 712
 713 #define ASM_OUTPUT_REG_POP(FILE, REGNO)                                 \
 714 do {                                                                    \
 715   if (DEFAULT_ABI == ABI_V4)                                            \
 716     asm_fprintf (FILE,                                                  \
 717                  "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n",        \
 718                  reg_names[REGNO], reg_names[1], reg_names[1],          \
 719                  reg_names[1]);                                         \
 720 } while (0)
 721
 722 /* Switch  Recognition by gcc.c.  Add -G xx support.  */
 723
 724 /* Override svr4.h definition.  */
 725 #undef  SWITCH_TAKES_ARG
 726 #define SWITCH_TAKES_ARG(CHAR)                                          \
 727   ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o'                      \
 728    || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u'                   \
 729    || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x'                   \
 730    || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V'                   \
 731    || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
 732
 733 /* Output .file.  */
 734 /* Override elfos.h definition.  */
 735 #undef  ASM_FILE_START
 736 #define ASM_FILE_START(FILE)                                            \
 737 do {                                                                    \
 738   output_file_directive ((FILE), main_input_filename);                  \
 739   rs6000_file_start (FILE, TARGET_CPU_DEFAULT);                         \
 740 } while (0)
 741
 742
 743 extern int fixuplabelno;
 744
 745 /* Handle constructors specially for -mrelocatable.  */
 746 #define TARGET_ASM_CONSTRUCTOR  rs6000_elf_asm_out_constructor
 747 #define TARGET_ASM_DESTRUCTOR   rs6000_elf_asm_out_destructor
 748
 749 /* This is the end of what might become sysv4.h.  */
 750
 751 /* Use DWARF 2 debugging information by default.  */
 752 #undef  PREFERRED_DEBUGGING_TYPE
 753 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 754
 755 /* Historically we have also supported stabs debugging.  */
 756 #define DBX_DEBUGGING_INFO 1
 757
 758 #define TARGET_ENCODE_SECTION_INFO  rs6000_elf_encode_section_info
 759 #define TARGET_STRIP_NAME_ENCODING  rs6000_elf_strip_name_encoding
 760 #define TARGET_IN_SMALL_DATA_P  rs6000_elf_in_small_data_p
 761 #define TARGET_SECTION_TYPE_FLAGS  rs6000_elf_section_type_flags
 762
 763 /* The ELF version doesn't encode [DS] or whatever at the end of symbols.  */
 764
 765 #define RS6000_OUTPUT_BASENAME(FILE, NAME)      \
 766     assemble_name (FILE, NAME)
 767
 768 /* This is how to output a reference to a user-level label named NAME.
 769    `assemble_name' uses this.  */
 770
 771 /* Override elfos.h definition.  */
 772 #undef  ASM_OUTPUT_LABELREF
 773 #define ASM_OUTPUT_LABELREF(FILE,NAME)          \
 774 do {                                            \
 775   const char *_name = NAME;                     \
 776   if (*_name == '@')                            \
 777     _name++;                                    \
 778                                                 \
 779   if (*_name == '*')                            \
 780     fprintf (FILE, "%s", _name + 1);            \
 781   else                                          \
 782     asm_fprintf (FILE, "%U%s", _name);          \
 783 } while (0)
 784
 785 /* But, to make this work, we have to output the stabs for the function
 786    name *first*...  */
 787
 788 #define DBX_FUNCTION_FIRST
 789
 790 /* This is the end of what might become sysv4dbx.h.  */
 791
 792 #ifndef TARGET_VERSION
 793 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
 794 #endif
 795 \f
 796 #ifndef TARGET_OS_CPP_BUILTINS
 797 #define TARGET_OS_CPP_BUILTINS()          \
 798   do                                      \
 799     {                                     \
 800       builtin_define_std ("PPC");         \
 801       builtin_define_std ("unix");        \
 802       builtin_define ("__svr4__");        \
 803       builtin_assert ("system=unix");     \
 804       builtin_assert ("system=svr4");     \
 805       builtin_assert ("cpu=powerpc");     \
 806       builtin_assert ("machine=powerpc"); \
 807     }                                     \
 808   while (0)
 809 #endif
 810
 811 /* Pass various options to the assembler.  */
 812 /* Override svr4.h definition.  */
 813 #undef  ASM_SPEC
 814 #define ASM_SPEC "%(asm_cpu) \
 815 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
 816 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
 817 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
 818 %{memb|msdata|msdata=eabi: -memb} \
 819 %{mlittle|mlittle-endian:-mlittle; \
 820   mbig|mbig-endian      :-mbig;    \
 821   mcall-aixdesc |                  \
 822   mcall-freebsd |                  \
 823   mcall-netbsd  |                  \
 824   mcall-linux   |                  \
 825   mcall-gnu             :-mbig;    \
 826   mcall-i960-old        :-mlittle}"
 827
 828 #define CC1_ENDIAN_BIG_SPEC ""
 829
 830 #define CC1_ENDIAN_LITTLE_SPEC "\
 831 %{!mstrict-align: %{!mno-strict-align: \
 832     %{!mcall-i960-old: \
 833         -mstrict-align \
 834     } \
 835 }}"
 836
 837 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
 838
 839 /* Pass -G xxx to the compiler and set correct endian mode.  */
 840 #define CC1_SPEC "%{G*} \
 841 %{mlittle|mlittle-endian: %(cc1_endian_little);           \
 842   mbig   |mbig-endian   : %(cc1_endian_big);              \
 843   mcall-aixdesc |                                         \
 844   mcall-freebsd |                                         \
 845   mcall-netbsd  |                                         \
 846   mcall-linux   |                                         \
 847   mcall-gnu             : -mbig %(cc1_endian_big);        \
 848   mcall-i960-old        : -mlittle %(cc1_endian_little);  \
 849                         : %(cc1_endian_default)}          \
 850 %{mno-sdata: -msdata=none } \
 851 %{meabi: %{!mcall-*: -mcall-sysv }} \
 852 %{!meabi: %{!mno-eabi: \
 853     %{mrelocatable: -meabi } \
 854     %{mcall-freebsd: -mno-eabi } \
 855     %{mcall-i960-old: -meabi } \
 856     %{mcall-linux: -mno-eabi } \
 857     %{mcall-gnu: -mno-eabi } \
 858     %{mcall-netbsd: -mno-eabi }}} \
 859 %{msdata: -msdata=default} \
 860 %{mno-sdata: -msdata=none} \
 861 %{profile: -p}"
 862
 863 /* Don't put -Y P,<path> for cross compilers.  */
 864 #ifndef CROSS_COMPILE
 865 #define LINK_PATH_SPEC "\
 866 %{!R*:%{L*:-R %*}} \
 867 %{!nostdlib: %{!YP,*: \
 868     %{compat-bsd: \
 869         %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 870         %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
 871         %{!R*: %{!L*: -R /usr/ucblib}} \
 872     %{!compat-bsd: \
 873         %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 874         %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
 875
 876 #else
 877 #define LINK_PATH_SPEC ""
 878 #endif
 879
 880 /* Default starting address if specified.  */
 881 #define LINK_START_SPEC "\
 882 %{mads         : %(link_start_ads)         ; \
 883   myellowknife : %(link_start_yellowknife) ; \
 884   mmvme        : %(link_start_mvme)        ; \
 885   msim         : %(link_start_sim)         ; \
 886   mwindiss     : %(link_start_windiss)     ; \
 887   mcall-freebsd: %(link_start_freebsd)     ; \
 888   mcall-linux  : %(link_start_linux)       ; \
 889   mcall-gnu    : %(link_start_gnu)         ; \
 890   mcall-netbsd : %(link_start_netbsd)      ; \
 891                : %(link_start_default)     }"
 892
 893 #define LINK_START_DEFAULT_SPEC ""
 894
 895 /* Override svr4.h definition.  */
 896 #undef  LINK_SPEC
 897 #define LINK_SPEC "\
 898 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
 899 %{YP,*} %{R*} \
 900 %{Qy:} %{!Qn:-Qy} \
 901 %(link_shlib) \
 902 %{!Wl,-T*: %{!T*: %(link_start) }} \
 903 %(link_target) \
 904 %(link_os)"
 905
 906 /* For now, turn off shared libraries by default.  */
 907 #ifndef SHARED_LIB_SUPPORT
 908 #define NO_SHARED_LIB_SUPPORT
 909 #endif
 910
 911 #ifndef NO_SHARED_LIB_SUPPORT
 912 /* Shared libraries are default.  */
 913 #define LINK_SHLIB_SPEC "\
 914 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
 915 %{mshlib: } \
 916 %{static:-dn -Bstatic} \
 917 %{shared:-G -dy -z text} \
 918 %{symbolic:-Bsymbolic -G -dy -z text}"
 919
 920 #else
 921 /* Shared libraries are not default.  */
 922 #define LINK_SHLIB_SPEC "\
 923 %{mshlib: %(link_path) } \
 924 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
 925 %{static: } \
 926 %{shared:-G -dy -z text %(link_path) } \
 927 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
 928 #endif
 929
 930 /* Override the default target of the linker.  */
 931 #define LINK_TARGET_SPEC "\
 932 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
 933 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
 934     %{mcall-i960-old: --oformat elf32-powerpcle} \
 935   }}}}"
 936
 937 /* Any specific OS flags.  */
 938 #define LINK_OS_SPEC "\
 939 %{mads         : %(link_os_ads)         ; \
 940   myellowknife : %(link_os_yellowknife) ; \
 941   mmvme        : %(link_os_mvme)        ; \
 942   msim         : %(link_os_sim)         ; \
 943   mwindiss     : %(link_os_windiss)     ; \
 944   mcall-freebsd: %(link_os_freebsd)     ; \
 945   mcall-linux  : %(link_os_linux)       ; \
 946   mcall-gnu    : %(link_os_gnu)         ; \
 947   mcall-netbsd : %(link_os_netbsd)      ; \
 948                : %(link_os_default)     }"
 949
 950 #define LINK_OS_DEFAULT_SPEC ""
 951
 952 #define CPP_SYSV_SPEC \
 953 "%{mrelocatable*: -D_RELOCATABLE} \
 954 %{fpic: -D__PIC__=1 -D__pic__=1} \
 955 %{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}}"
 956
 957 /* Override rs6000.h definition.  */
 958 #undef  CPP_SPEC
 959 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} %(cpp_sysv) \
 960 %{mads         : %(cpp_os_ads)         ; \
 961   myellowknife : %(cpp_os_yellowknife) ; \
 962   mmvme        : %(cpp_os_mvme)        ; \
 963   msim         : %(cpp_os_sim)         ; \
 964   mwindiss     : %(cpp_os_windiss)     ; \
 965   mcall-freebsd: %(cpp_os_freebsd)     ; \
 966   mcall-linux  : %(cpp_os_linux)       ; \
 967   mcall-gnu    : %(cpp_os_gnu)         ; \
 968   mcall-netbsd : %(cpp_os_netbsd)      ; \
 969                : %(cpp_os_default)     }"
 970
 971 #define CPP_OS_DEFAULT_SPEC ""
 972
 973 /* Override svr4.h definition.  */
 974 #undef  STARTFILE_SPEC
 975 #define STARTFILE_SPEC "\
 976 %{mads         : %(startfile_ads)         ; \
 977   myellowknife : %(startfile_yellowknife) ; \
 978   mmvme        : %(startfile_mvme)        ; \
 979   msim         : %(startfile_sim)         ; \
 980   mwindiss     : %(startfile_windiss)     ; \
 981   mcall-freebsd: %(startfile_freebsd)     ; \
 982   mcall-linux  : %(startfile_linux)       ; \
 983   mcall-gnu    : %(startfile_gnu)         ; \
 984   mcall-netbsd : %(startfile_netbsd)      ; \
 985                : %(startfile_default)     }"
 986
 987 #define STARTFILE_DEFAULT_SPEC ""
 988
 989 /* Override svr4.h definition.  */
 990 #undef  LIB_SPEC
 991 #define LIB_SPEC "\
 992 %{mads         : %(lib_ads)         ; \
 993   myellowknife : %(lib_yellowknife) ; \
 994   mmvme        : %(lib_mvme)        ; \
 995   msim         : %(lib_sim)         ; \
 996   mwindiss     : %(lib_windiss)     ; \
 997   mcall-freebsd: %(lib_freebsd)     ; \
 998   mcall-linux  : %(lib_linux)       ; \
 999   mcall-gnu    : %(lib_gnu)         ; \
1000   mcall-netbsd : %(lib_netbsd)      ; \
1001                : %(lib_default)     }"
1002
1003 #define LIB_DEFAULT_SPEC ""
1004
1005 /* Override svr4.h definition.  */
1006 #undef  ENDFILE_SPEC
1007 #define ENDFILE_SPEC "\
1008 %{mads         : crtsavres.o%s        %(endfile_ads)         ; \
1009   myellowknife : crtsavres.o%s        %(endfile_yellowknife) ; \
1010   mmvme        : crtsavres.o%s        %(endfile_mvme)        ; \
1011   msim         : crtsavres.o%s        %(endfile_sim)         ; \
1012   mwindiss     :                      %(endfile_windiss)     ; \
1013   mcall-freebsd: crtsavres.o%s        %(endfile_freebsd)     ; \
1014   mcall-linux  : crtsavres.o%s        %(endfile_linux)       ; \
1015   mcall-gnu    : crtsavres.o%s        %(endfile_gnu)         ; \
1016   mcall-netbsd : crtsavres.o%s        %(endfile_netbsd)      ; \
1017                : %(crtsavres_default) %(endfile_default)     }"
1018
1019 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
1020
1021 #define ENDFILE_DEFAULT_SPEC ""
1022
1023 /* Motorola ADS support.  */
1024 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1025
1026 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1027
1028 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1029
1030 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1031
1032 #define LINK_OS_ADS_SPEC ""
1033
1034 #define CPP_OS_ADS_SPEC ""
1035
1036 /* Motorola Yellowknife support.  */
1037 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1038
1039 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1040
1041 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1042
1043 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1044
1045 #define LINK_OS_YELLOWKNIFE_SPEC ""
1046
1047 #define CPP_OS_YELLOWKNIFE_SPEC ""
1048
1049 /* Motorola MVME support.  */
1050 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1051
1052 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1053
1054 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1055
1056 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1057
1058 #define LINK_OS_MVME_SPEC ""
1059
1060 #define CPP_OS_MVME_SPEC ""
1061
1062 /* PowerPC simulator based on netbsd system calls support.  */
1063 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1064
1065 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1066
1067 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1068
1069 #define LINK_START_SIM_SPEC ""
1070
1071 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1072
1073 #define CPP_OS_SIM_SPEC ""
1074
1075 /* FreeBSD support.  */
1076
1077 #define CPP_OS_FREEBSD_SPEC     "\
1078   -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1079   -Acpu=powerpc -Amachine=powerpc"
1080
1081 #define STARTFILE_FREEBSD_SPEC  FBSD_STARTFILE_SPEC
1082 #define ENDFILE_FREEBSD_SPEC    FBSD_ENDFILE_SPEC
1083 #define LIB_FREEBSD_SPEC        FBSD_LIB_SPEC
1084 #define LINK_START_FREEBSD_SPEC ""
1085
1086 #define LINK_OS_FREEBSD_SPEC "\
1087   %{symbolic:-Bsymbolic}"
1088
1089 /* GNU/Linux support.  */
1090 #ifdef USE_GNULIBC_1
1091 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1092 %{!mnewlib: -lc }"
1093 #else
1094 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1095 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1096 %{profile:-lc_p} %{!profile:-lc}}}"
1097 #endif
1098
1099 #ifdef USE_GNULIBC_1
1100 #define STARTFILE_LINUX_SPEC "\
1101 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1102 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1103 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1104 #else
1105 #define STARTFILE_LINUX_SPEC "\
1106 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1107 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1108 %{static:crtbeginT.o%s} \
1109 %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
1110 #endif
1111
1112 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1113 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1114
1115 #define LINK_START_LINUX_SPEC ""
1116
1117 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1118   %{rdynamic:-export-dynamic} \
1119   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1120
1121 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
1122 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1123 #endif
1124
1125 #ifdef USE_GNULIBC_1
1126 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1127 %{!undef:                                                         \
1128   %{!ansi:                                                        \
1129     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1130     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1131 -Asystem=unix -Asystem=posix"
1132 #else
1133 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1134 %{!undef:                                                         \
1135   %{!ansi:                                                        \
1136     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1137     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1138 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1139 #endif
1140
1141 /* GNU/Hurd support.  */
1142 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1143 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1144 %{profile:-lc_p} %{!profile:-lc}}}"
1145
1146 #define STARTFILE_GNU_SPEC "\
1147 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1148 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1149 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1150 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1151
1152 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1153 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1154
1155 #define LINK_START_GNU_SPEC ""
1156
1157 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1158   %{rdynamic:-export-dynamic} \
1159   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1160
1161 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__    \
1162 %{!undef:                                                       \
1163   %{!ansi: -Dunix -D__unix}}                                    \
1164 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1165
1166 /* NetBSD support.  */
1167 #define LIB_NETBSD_SPEC "\
1168 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1169
1170 #define STARTFILE_NETBSD_SPEC "\
1171 ncrti.o%s crt0.o%s \
1172 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1173
1174 #define ENDFILE_NETBSD_SPEC "\
1175 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1176 ncrtn.o%s"
1177
1178 #define LINK_START_NETBSD_SPEC "\
1179 "
1180
1181 #define LINK_OS_NETBSD_SPEC "\
1182 %{!shared: %{!static: \
1183   %{rdynamic:-export-dynamic} \
1184   %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1185
1186 #define CPP_OS_NETBSD_SPEC "\
1187 -D__powerpc__ -D__NetBSD__ -D__ELF__ -D__KPRINTF_ATTRIBUTE__"
1188
1189 /* WindISS support.  */
1190
1191 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1192
1193 #define CPP_OS_WINDISS_SPEC "\
1194 -D__rtasim \
1195 -D__EABI__ \
1196 -D__ppc \
1197 %{!msoft-float: -D__hardfp} \
1198 "
1199
1200 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1201
1202 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1203
1204 #define LINK_START_WINDISS_SPEC ""
1205
1206 #define LINK_OS_WINDISS_SPEC ""
1207
1208 /* Define any extra SPECS that the compiler needs to generate.  */
1209 /* Override rs6000.h definition.  */
1210 #undef  SUBTARGET_EXTRA_SPECS
1211 #define SUBTARGET_EXTRA_SPECS                                           \
1212   { "cpp_sysv",                 CPP_SYSV_SPEC },                        \
1213   { "crtsavres_default",        CRTSAVRES_DEFAULT_SPEC },              \
1214   { "lib_ads",                  LIB_ADS_SPEC },                         \
1215   { "lib_yellowknife",          LIB_YELLOWKNIFE_SPEC },                 \
1216   { "lib_mvme",                 LIB_MVME_SPEC },                        \
1217   { "lib_sim",                  LIB_SIM_SPEC },                         \
1218   { "lib_freebsd",              LIB_FREEBSD_SPEC },                     \
1219   { "lib_gnu",                  LIB_GNU_SPEC },                         \
1220   { "lib_linux",                LIB_LINUX_SPEC },                       \
1221   { "lib_netbsd",               LIB_NETBSD_SPEC },                      \
1222   { "lib_windiss",              LIB_WINDISS_SPEC },                     \
1223   { "lib_default",              LIB_DEFAULT_SPEC },                     \
1224   { "startfile_ads",            STARTFILE_ADS_SPEC },                   \
1225   { "startfile_yellowknife",    STARTFILE_YELLOWKNIFE_SPEC },           \
1226   { "startfile_mvme",           STARTFILE_MVME_SPEC },                  \
1227   { "startfile_sim",            STARTFILE_SIM_SPEC },                   \
1228   { "startfile_freebsd",        STARTFILE_FREEBSD_SPEC },               \
1229   { "startfile_gnu",            STARTFILE_GNU_SPEC },                   \
1230   { "startfile_linux",          STARTFILE_LINUX_SPEC },                 \
1231   { "startfile_netbsd",         STARTFILE_NETBSD_SPEC },                \
1232   { "startfile_windiss",        STARTFILE_WINDISS_SPEC },               \
1233   { "startfile_default",        STARTFILE_DEFAULT_SPEC },               \
1234   { "endfile_ads",              ENDFILE_ADS_SPEC },                     \
1235   { "endfile_yellowknife",      ENDFILE_YELLOWKNIFE_SPEC },             \
1236   { "endfile_mvme",             ENDFILE_MVME_SPEC },                    \
1237   { "endfile_sim",              ENDFILE_SIM_SPEC },                     \
1238   { "endfile_freebsd",          ENDFILE_FREEBSD_SPEC },                 \
1239   { "endfile_gnu",              ENDFILE_GNU_SPEC },                     \
1240   { "endfile_linux",            ENDFILE_LINUX_SPEC },                   \
1241   { "endfile_netbsd",           ENDFILE_NETBSD_SPEC },                  \
1242   { "endfile_windiss",          ENDFILE_WINDISS_SPEC },                 \
1243   { "endfile_default",          ENDFILE_DEFAULT_SPEC },                 \
1244   { "link_path",                LINK_PATH_SPEC },                       \
1245   { "link_shlib",               LINK_SHLIB_SPEC },                      \
1246   { "link_target",              LINK_TARGET_SPEC },                     \
1247   { "link_start",               LINK_START_SPEC },                      \
1248   { "link_start_ads",           LINK_START_ADS_SPEC },                  \
1249   { "link_start_yellowknife",   LINK_START_YELLOWKNIFE_SPEC },          \
1250   { "link_start_mvme",          LINK_START_MVME_SPEC },                 \
1251   { "link_start_sim",           LINK_START_SIM_SPEC },                  \
1252   { "link_start_freebsd",       LINK_START_FREEBSD_SPEC },              \
1253   { "link_start_gnu",           LINK_START_GNU_SPEC },                  \
1254   { "link_start_linux",         LINK_START_LINUX_SPEC },                \
1255   { "link_start_netbsd",        LINK_START_NETBSD_SPEC },               \
1256   { "link_start_windiss",       LINK_START_WINDISS_SPEC },              \
1257   { "link_start_default",       LINK_START_DEFAULT_SPEC },              \
1258   { "link_os",                  LINK_OS_SPEC },                         \
1259   { "link_os_ads",              LINK_OS_ADS_SPEC },                     \
1260   { "link_os_yellowknife",      LINK_OS_YELLOWKNIFE_SPEC },             \
1261   { "link_os_mvme",             LINK_OS_MVME_SPEC },                    \
1262   { "link_os_sim",              LINK_OS_SIM_SPEC },                     \
1263   { "link_os_freebsd",          LINK_OS_FREEBSD_SPEC },                 \
1264   { "link_os_linux",            LINK_OS_LINUX_SPEC },                   \
1265   { "link_os_gnu",              LINK_OS_GNU_SPEC },                     \
1266   { "link_os_netbsd",           LINK_OS_NETBSD_SPEC },                  \
1267   { "link_os_windiss",          LINK_OS_WINDISS_SPEC },                 \
1268   { "link_os_default",          LINK_OS_DEFAULT_SPEC },                 \
1269   { "cc1_endian_big",           CC1_ENDIAN_BIG_SPEC },                  \
1270   { "cc1_endian_little",        CC1_ENDIAN_LITTLE_SPEC },               \
1271   { "cc1_endian_default",       CC1_ENDIAN_DEFAULT_SPEC },              \
1272   { "cpp_os_ads",               CPP_OS_ADS_SPEC },                      \
1273   { "cpp_os_yellowknife",       CPP_OS_YELLOWKNIFE_SPEC },              \
1274   { "cpp_os_mvme",              CPP_OS_MVME_SPEC },                     \
1275   { "cpp_os_sim",               CPP_OS_SIM_SPEC },                      \
1276   { "cpp_os_freebsd",           CPP_OS_FREEBSD_SPEC },                  \
1277   { "cpp_os_gnu",               CPP_OS_GNU_SPEC },                      \
1278   { "cpp_os_linux",             CPP_OS_LINUX_SPEC },                    \
1279   { "cpp_os_netbsd",            CPP_OS_NETBSD_SPEC },                   \
1280   { "cpp_os_windiss",           CPP_OS_WINDISS_SPEC },                  \
1281   { "cpp_os_default",           CPP_OS_DEFAULT_SPEC },
1282
1283 /* Define this macro as a C expression for the initializer of an
1284    array of string to tell the driver program which options are
1285    defaults for this target and thus do not need to be handled
1286    specially when using `MULTILIB_OPTIONS'.
1287
1288    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1289    the target makefile fragment or if none of the options listed in
1290    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
1291
1292 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1293
1294 /* Define this macro if the code for function profiling should come
1295    before the function prologue.  Normally, the profiling code comes
1296    after.  */
1297 #define PROFILE_BEFORE_PROLOGUE 1
1298
1299 /* Function name to call to do profiling.  */
1300 #define RS6000_MCOUNT "_mcount"
1301
1302 /* Define this macro (to a value of 1) if you want to support the
1303    Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1304    pack(pop)'.  The pack(push,<n>) pragma specifies the maximum
1305    alignment (in bytes) of fields within a structure, in much the
1306    same way as the __aligned__' and __packed__' __attribute__'s
1307    do.  A pack value of zero resets the behavior to the default.
1308    Successive invocations of this pragma cause the previous values to
1309    be stacked, so that invocations of #pragma pack(pop)' will return
1310    to the previous value.  */
1311
1312 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1313
1314 /* Define library calls for quad FP operations.  These are all part of the
1315    PowerPC 32bit ABI.  */
1316 #define ADDTF3_LIBCALL "_q_add"
1317 #define DIVTF3_LIBCALL "_q_div"
1318 #define EXTENDDFTF2_LIBCALL "_q_dtoq"
1319 #define EQTF2_LIBCALL "_q_feq"
1320 #define GETF2_LIBCALL "_q_fge"
1321 #define GTTF2_LIBCALL "_q_fgt"
1322 #define LETF2_LIBCALL "_q_fle"
1323 #define LTTF2_LIBCALL "_q_flt"
1324 #define NETF2_LIBCALL "_q_fne"
1325 #define FLOATSITF2_LIBCALL "_q_itoq"
1326 #define MULTF3_LIBCALL "_q_mul"
1327 #define NEGTF2_LIBCALL "_q_neg"
1328 #define TRUNCTFDF2_LIBCALL "_q_qtod"
1329 #define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi"
1330 #define TRUNCTFSF2_LIBCALL "_q_qtos"
1331 #define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou"
1332 #define SQRTTF_LIBCALL "_q_sqrt"
1333 #define EXTENDSFTF2_LIBCALL "_q_stoq"
1334 #define SUBTF3_LIBCALL "_q_sub"
1335 #define FLOATUNSSITF2_LIBCALL "_q_utoq"
1336
1337 #define INIT_TARGET_OPTABS                                              \
1338   do {                                                                  \
1339     if (TARGET_HARD_FLOAT)                                              \
1340       {                                                                 \
1341         add_optab->handlers[(int) TFmode].libfunc                       \
1342           = init_one_libfunc (ADDTF3_LIBCALL);                          \
1343         sub_optab->handlers[(int) TFmode].libfunc                       \
1344           = init_one_libfunc (SUBTF3_LIBCALL);                          \
1345         neg_optab->handlers[(int) TFmode].libfunc                       \
1346           = init_one_libfunc (NEGTF2_LIBCALL);                          \
1347         smul_optab->handlers[(int) TFmode].libfunc                      \
1348           = init_one_libfunc (MULTF3_LIBCALL);                          \
1349         sdiv_optab->handlers[(int) TFmode].libfunc                      \
1350           = init_one_libfunc (DIVTF3_LIBCALL);                          \
1351         eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL);               \
1352         netf2_libfunc = init_one_libfunc (NETF2_LIBCALL);               \
1353         gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL);               \
1354         getf2_libfunc = init_one_libfunc (GETF2_LIBCALL);               \
1355         lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL);               \
1356         letf2_libfunc = init_one_libfunc (LETF2_LIBCALL);               \
1357         trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL);     \
1358         trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL);     \
1359         extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL);   \
1360         extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL);   \
1361         floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL);      \
1362         fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL);    \
1363         fixunstfsi_libfunc                                              \
1364           = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL);               \
1365         if (TARGET_PPC_GPOPT || TARGET_POWER2)                          \
1366           sqrt_optab->handlers[(int) TFmode].libfunc                    \
1367             = init_one_libfunc (SQRTTF_LIBCALL);                        \
1368       }                                                                 \
1369   } while (0)
1370
1371 /* Select a format to encode pointers in exception handling data.  CODE
1372    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
1373    true if the symbol may be affected by dynamic relocations.  */
1374 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)                            \
1375   ((flag_pic || TARGET_RELOCATABLE)                                          \
1376    ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1377    : DW_EH_PE_absptr)
1378
1379 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1380
1381 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1382
1383 /* Generate entries in .fixup for relocatable addresses.  */
1384 #define RELOCATABLE_NEEDS_FIXUP