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 GCC.
   7
   8    GCC is free software; you can redistribute it and/or modify it
   9    under the terms of the GNU General Public License as published
  10    by the Free Software Foundation; either version 2, or (at your
  11    option) any later version.
  12
  13    GCC is distributed in the hope that it will be useful, but WITHOUT
  14    ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
  15    or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public
  16    License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with GCC; see the file COPYING.  If not, write to the
  20    Free Software Foundation, 59 Temple Place - Suite 330, Boston,
  21    MA 02111-1307, USA.  */
  22
  23 /* Header files should be C++ aware in general.  */
  24 #define NO_IMPLICIT_EXTERN_C
  25
  26 /* Yes!  We are ELF.  */
  27 #define TARGET_OBJECT_FORMAT OBJECT_ELF
  28
  29 /* Default ABI to compile code for.  */
  30 #define DEFAULT_ABI rs6000_current_abi
  31
  32 /* Default ABI to use.  */
  33 #define RS6000_ABI_NAME "sysv"
  34
  35 /* Override rs6000.h definition.  */
  36 #undef  ASM_DEFAULT_SPEC
  37 #define ASM_DEFAULT_SPEC "-mppc"
  38
  39 /* Small data support types.  */
  40 enum rs6000_sdata_type {
  41   SDATA_NONE,                   /* No small data support.  */
  42   SDATA_DATA,                   /* Just put data in .sbss/.sdata, don't use relocs.  */
  43   SDATA_SYSV,                   /* Use r13 to point to .sdata/.sbss.  */
  44   SDATA_EABI                    /* Use r13 like above, r2 points to .sdata2/.sbss2.  */
  45 };
  46
  47 extern enum rs6000_sdata_type rs6000_sdata;
  48
  49 /* V.4/eabi switches.  */
  50 #define MASK_NO_BITFIELD_TYPE   0x40000000      /* Set PCC_BITFIELD_TYPE_MATTERS to 0.  */
  51 #define MASK_STRICT_ALIGN       0x20000000      /* Set STRICT_ALIGNMENT to 1.  */
  52 #define MASK_RELOCATABLE        0x10000000      /* GOT pointers are PC relative.  */
  53 #define MASK_EABI               0x08000000      /* Adhere to eabi, not System V spec.  */
  54 #define MASK_LITTLE_ENDIAN      0x04000000      /* Target is little endian.  */
  55 #define MASK_REGNAMES           0x02000000      /* Use alternate register names.  */
  56 #define MASK_PROTOTYPE          0x01000000      /* Only prototyped fcns pass variable args.  */
  57 #define MASK_NO_BITFIELD_WORD   0x00800000      /* Bitfields cannot cross word boundaries */
  58
  59 #define TARGET_NO_BITFIELD_TYPE (target_flags & MASK_NO_BITFIELD_TYPE)
  60 #define TARGET_STRICT_ALIGN     (target_flags & MASK_STRICT_ALIGN)
  61 #define TARGET_RELOCATABLE      (target_flags & MASK_RELOCATABLE)
  62 #define TARGET_EABI             (target_flags & MASK_EABI)
  63 #define TARGET_LITTLE_ENDIAN    (target_flags & MASK_LITTLE_ENDIAN)
  64 #define TARGET_REGNAMES         (target_flags & MASK_REGNAMES)
  65 #define TARGET_PROTOTYPE        (target_flags & MASK_PROTOTYPE)
  66 #define TARGET_NO_BITFIELD_WORD (target_flags & MASK_NO_BITFIELD_WORD)
  67 #define TARGET_TOC              ((target_flags & MASK_64BIT)            \
  68                                  || ((target_flags & (MASK_RELOCATABLE  \
  69                                                       | MASK_MINIMAL_TOC)) \
  70                                      && flag_pic > 1)                   \
  71                                  || DEFAULT_ABI == ABI_AIX)
  72
  73 #define TARGET_BITFIELD_TYPE    (! TARGET_NO_BITFIELD_TYPE)
  74 #define TARGET_BIG_ENDIAN       (! TARGET_LITTLE_ENDIAN)
  75 #define TARGET_NO_PROTOTYPE     (! TARGET_PROTOTYPE)
  76 #define TARGET_NO_TOC           (! TARGET_TOC)
  77 #define TARGET_NO_EABI          (! TARGET_EABI)
  78
  79 /* Strings provided by SUBTARGET_OPTIONS */
  80 extern const char *rs6000_abi_name;
  81 extern const char *rs6000_sdata_name;
  82 extern const char *rs6000_tls_size_string; /* For -mtls-size= */
  83
  84 /* Override rs6000.h definition.  */
  85 #undef  SUBTARGET_OPTIONS
  86 #define SUBTARGET_OPTIONS                                                       \
  87   { "call-",  &rs6000_abi_name, N_("Select ABI calling convention"), 0},        \
  88   { "sdata=", &rs6000_sdata_name, N_("Select method for sdata handling"), 0},   \
  89   { "tls-size=", &rs6000_tls_size_string,                                       \
  90    N_("Specify bit size of immediate TLS offsets"), 0 }
  91
  92 #define SDATA_DEFAULT_SIZE 8
  93
  94 /* Note, V.4 no longer uses a normal TOC, so make -mfull-toc, be just
  95    the same as -mminimal-toc.  */
  96 /* Override rs6000.h definition.  */
  97 #undef  SUBTARGET_SWITCHES
  98 #define SUBTARGET_SWITCHES                                              \
  99   { "bit-align",        -MASK_NO_BITFIELD_TYPE,                         \
 100     N_("Align to the base type of the bit-field") },                    \
 101   { "no-bit-align",      MASK_NO_BITFIELD_TYPE,                         \
 102     N_("Don't align to the base type of the bit-field") },              \
 103   { "strict-align",      MASK_STRICT_ALIGN,                             \
 104     N_("Don't assume that unaligned accesses are handled by the system") }, \
 105   { "no-strict-align",  -MASK_STRICT_ALIGN,                             \
 106     N_("Assume that unaligned accesses are handled by the system") },   \
 107   { "relocatable",       MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
 108     N_("Produce code relocatable at runtime") },                        \
 109   { "no-relocatable",   -MASK_RELOCATABLE,                              \
 110     N_("Don't produce code relocatable at runtime") },                  \
 111   { "relocatable-lib",   MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC, \
 112     N_("Produce code relocatable at runtime") },                        \
 113   { "no-relocatable-lib", -MASK_RELOCATABLE,                            \
 114     N_("Don't produce code relocatable at runtime") },                  \
 115   { "little-endian",     MASK_LITTLE_ENDIAN,                            \
 116     N_("Produce little endian code") },                                 \
 117   { "little",            MASK_LITTLE_ENDIAN,                            \
 118     N_("Produce little endian code") },                                 \
 119   { "big-endian",       -MASK_LITTLE_ENDIAN,                            \
 120     N_("Produce big endian code") },                                    \
 121   { "big",              -MASK_LITTLE_ENDIAN,                            \
 122     N_("Produce big endian code") },                                    \
 123   { "no-toc",            0, N_("no description yet") },                 \
 124   { "toc",               MASK_MINIMAL_TOC, N_("no description yet") },  \
 125   { "full-toc",          MASK_MINIMAL_TOC, N_("no description yet") },  \
 126   { "prototype",         MASK_PROTOTYPE, N_("no description yet") },    \
 127   { "no-prototype",     -MASK_PROTOTYPE, N_("no description yet") },    \
 128   { "no-traceback",      0, N_("no description yet") },                 \
 129   { "eabi",              MASK_EABI, N_("Use EABI") },                   \
 130   { "no-eabi",          -MASK_EABI, N_("Don't use EABI") },             \
 131   { "bit-word",         -MASK_NO_BITFIELD_WORD, "" },                   \
 132   { "no-bit-word",       MASK_NO_BITFIELD_WORD,                         \
 133     N_("Do not allow bit-fields to cross word boundaries") },           \
 134   { "regnames",           MASK_REGNAMES,                                \
 135     N_("Use alternate register names") },                               \
 136   { "no-regnames",       -MASK_REGNAMES,                                \
 137     N_("Don't use alternate register names") },                         \
 138   { "sdata",             0, N_("no description yet") },                 \
 139   { "no-sdata",          0, N_("no description yet") },                 \
 140   { "sim",               0,                                             \
 141     N_("Link with libsim.a, libc.a and sim-crt0.o") },                  \
 142   { "ads",               0,                                             \
 143     N_("Link with libads.a, libc.a and crt0.o") },                      \
 144   { "yellowknife",       0,                                             \
 145     N_("Link with libyk.a, libc.a and crt0.o") },                       \
 146   { "mvme",              0,                                             \
 147     N_("Link with libmvme.a, libc.a and crt0.o") },                     \
 148   { "emb",               0,                                             \
 149     N_("Set the PPC_EMB bit in the ELF flags header") },                \
 150   { "windiss",           0, N_("Use the WindISS simulator") },          \
 151   { "shlib",             0, N_("no description yet") },                 \
 152   { "64",                MASK_64BIT | MASK_POWERPC64 | MASK_POWERPC,    \
 153                          N_("Generate 64-bit code") },                  \
 154   { "32",                - (MASK_64BIT | MASK_POWERPC64),               \
 155                          N_("Generate 32-bit code") },                  \
 156   EXTRA_SUBTARGET_SWITCHES                                              \
 157   { "newlib",            0, N_("no description yet") },
 158
 159 /* This is meant to be redefined in the host dependent files.  */
 160 #define EXTRA_SUBTARGET_SWITCHES
 161
 162 /* Sometimes certain combinations of command options do not make sense
 163    on a particular target machine.  You can define a macro
 164    `OVERRIDE_OPTIONS' to take account of this.  This macro, if
 165    defined, is executed once just after all the command options have
 166    been parsed.
 167
 168    The macro SUBTARGET_OVERRIDE_OPTIONS is provided for subtargets, to
 169    get control.  */
 170
 171 #define SUBTARGET_OVERRIDE_OPTIONS                                      \
 172 do {                                                                    \
 173   if (!g_switch_set)                                                    \
 174     g_switch_value = SDATA_DEFAULT_SIZE;                                \
 175                                                                         \
 176   if (rs6000_abi_name == NULL)                                          \
 177     rs6000_abi_name = RS6000_ABI_NAME;                                  \
 178                                                                         \
 179   if (!strcmp (rs6000_abi_name, "sysv"))                                \
 180     rs6000_current_abi = ABI_V4;                                        \
 181   else if (!strcmp (rs6000_abi_name, "sysv-noeabi"))                    \
 182     {                                                                   \
 183       rs6000_current_abi = ABI_V4;                                      \
 184       target_flags &= ~ MASK_EABI;                                      \
 185     }                                                                   \
 186   else if (!strcmp (rs6000_abi_name, "sysv-eabi")                       \
 187            || !strcmp (rs6000_abi_name, "eabi"))                        \
 188     {                                                                   \
 189       rs6000_current_abi = ABI_V4;                                      \
 190       target_flags |= MASK_EABI;                                        \
 191     }                                                                   \
 192   else if (!strcmp (rs6000_abi_name, "aixdesc"))                        \
 193     rs6000_current_abi = ABI_AIX;                                       \
 194   else if (!strcmp (rs6000_abi_name, "freebsd"))                        \
 195     rs6000_current_abi = ABI_V4;                                        \
 196   else if (!strcmp (rs6000_abi_name, "linux"))                          \
 197     rs6000_current_abi = ABI_V4;                                        \
 198   else if (!strcmp (rs6000_abi_name, "gnu"))                            \
 199     rs6000_current_abi = ABI_V4;                                        \
 200   else if (!strcmp (rs6000_abi_name, "netbsd"))                         \
 201     rs6000_current_abi = ABI_V4;                                        \
 202   else if (!strcmp (rs6000_abi_name, "i960-old"))                       \
 203     {                                                                   \
 204       rs6000_current_abi = ABI_V4;                                      \
 205       target_flags |= (MASK_LITTLE_ENDIAN | MASK_EABI                   \
 206                        | MASK_NO_BITFIELD_WORD);                        \
 207       target_flags &= ~MASK_STRICT_ALIGN;                               \
 208     }                                                                   \
 209   else                                                                  \
 210     {                                                                   \
 211       rs6000_current_abi = ABI_V4;                                      \
 212       error ("bad value for -mcall-%s", rs6000_abi_name);               \
 213     }                                                                   \
 214                                                                         \
 215   if (rs6000_sdata_name)                                                \
 216     {                                                                   \
 217       if (!strcmp (rs6000_sdata_name, "none"))                          \
 218         rs6000_sdata = SDATA_NONE;                                      \
 219       else if (!strcmp (rs6000_sdata_name, "data"))                     \
 220         rs6000_sdata = SDATA_DATA;                                      \
 221       else if (!strcmp (rs6000_sdata_name, "default"))                  \
 222         rs6000_sdata = (TARGET_EABI) ? SDATA_EABI : SDATA_SYSV;         \
 223       else if (!strcmp (rs6000_sdata_name, "sysv"))                     \
 224         rs6000_sdata = SDATA_SYSV;                                      \
 225       else if (!strcmp (rs6000_sdata_name, "eabi"))                     \
 226         rs6000_sdata = SDATA_EABI;                                      \
 227       else                                                              \
 228         error ("bad value for -msdata=%s", rs6000_sdata_name);          \
 229     }                                                                   \
 230   else if (DEFAULT_ABI == ABI_V4)                                       \
 231     {                                                                   \
 232       rs6000_sdata = SDATA_DATA;                                        \
 233       rs6000_sdata_name = "data";                                       \
 234     }                                                                   \
 235   else                                                                  \
 236     {                                                                   \
 237       rs6000_sdata = SDATA_NONE;                                        \
 238       rs6000_sdata_name = "none";                                       \
 239     }                                                                   \
 240                                                                         \
 241   if (TARGET_RELOCATABLE &&                                             \
 242       (rs6000_sdata == SDATA_EABI || rs6000_sdata == SDATA_SYSV))       \
 243     {                                                                   \
 244       rs6000_sdata = SDATA_DATA;                                        \
 245       error ("-mrelocatable and -msdata=%s are incompatible",           \
 246              rs6000_sdata_name);                                        \
 247     }                                                                   \
 248                                                                         \
 249   else if (flag_pic && DEFAULT_ABI != ABI_AIX                           \
 250            && (rs6000_sdata == SDATA_EABI                               \
 251                || 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 (!TARGET_64BIT && 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 && DEFAULT_ABI != ABI_AIX)                           \
 296     target_flags |= MASK_RELOCATABLE | MASK_MINIMAL_TOC | MASK_NO_FP_IN_TOC; \
 297                                                                         \
 298   else if (TARGET_RELOCATABLE)                                          \
 299     flag_pic = 2;                                                       \
 300 } while (0)
 301
 302 #ifndef RS6000_BI_ARCH
 303 # define SUBSUBTARGET_OVERRIDE_OPTIONS                                  \
 304 do {                                                                    \
 305   if ((TARGET_DEFAULT ^ target_flags) & MASK_64BIT)                     \
 306     error ("-m%s not supported in this configuration",                  \
 307            (target_flags & MASK_64BIT) ? "64" : "32");                  \
 308 } while (0)
 309 #endif
 310
 311 /* Override rs6000.h definition.  */
 312 #undef  TARGET_DEFAULT
 313 #define TARGET_DEFAULT (MASK_POWERPC | MASK_NEW_MNEMONICS)
 314
 315 /* Override rs6000.h definition.  */
 316 #undef  PROCESSOR_DEFAULT
 317 #define PROCESSOR_DEFAULT PROCESSOR_PPC750
 318
 319 #define FIXED_R2 1
 320 /* System V.4 uses register 13 as a pointer to the small data area,
 321    so it is not available to the normal user.  */
 322 #define FIXED_R13 1
 323
 324 /* Size of the V.4 varargs area if needed.  */
 325 /* Override rs6000.h definition.  */
 326 #undef  RS6000_VARARGS_AREA
 327 #define RS6000_VARARGS_AREA ((cfun->machine->sysv_varargs_p) ? RS6000_VARARGS_SIZE : 0)
 328
 329 /* Override default big endianism definitions in rs6000.h.  */
 330 #undef  BYTES_BIG_ENDIAN
 331 #undef  WORDS_BIG_ENDIAN
 332 #define BYTES_BIG_ENDIAN (TARGET_BIG_ENDIAN)
 333 #define WORDS_BIG_ENDIAN (TARGET_BIG_ENDIAN)
 334
 335 /* Define this to set the endianness to use in libgcc2.c, which can
 336    not depend on target_flags.  */
 337 #if !defined(__LITTLE_ENDIAN__) && !defined(__sun__)
 338 #define LIBGCC2_WORDS_BIG_ENDIAN 1
 339 #else
 340 #define LIBGCC2_WORDS_BIG_ENDIAN 0
 341 #endif
 342
 343 /* Define cutoff for using external functions to save floating point.
 344    Currently on V.4, always use inline stores.  */
 345 #define FP_SAVE_INLINE(FIRST_REG) ((FIRST_REG) < 64)
 346
 347 /* Put jump tables in read-only memory, rather than in .text.  */
 348 #define JUMP_TABLES_IN_TEXT_SECTION 0
 349
 350 /* Prefix and suffix to use to saving floating point.  */
 351 #define SAVE_FP_PREFIX "_savefpr_"
 352 #define SAVE_FP_SUFFIX "_l"
 353
 354 /* Prefix and suffix to use to restoring floating point.  */
 355 #define RESTORE_FP_PREFIX "_restfpr_"
 356 #define RESTORE_FP_SUFFIX "_l"
 357
 358 /* Type used for ptrdiff_t, as a string used in a declaration.  */
 359 #define PTRDIFF_TYPE "int"
 360
 361 /* Type used for wchar_t, as a string used in a declaration.  */
 362 /* Override svr4.h definition.  */
 363 #undef  WCHAR_TYPE
 364 #define WCHAR_TYPE "long int"
 365
 366 /* Width of wchar_t in bits.  */
 367 /* Override svr4.h definition.  */
 368 #undef  WCHAR_TYPE_SIZE
 369 #define WCHAR_TYPE_SIZE 32
 370
 371 /* Make int foo : 8 not cause structures to be aligned to an int boundary.  */
 372 /* Override elfos.h definition.  */
 373 #undef  PCC_BITFIELD_TYPE_MATTERS
 374 #define PCC_BITFIELD_TYPE_MATTERS (TARGET_BITFIELD_TYPE)
 375
 376 #undef  BITFIELD_NBYTES_LIMITED
 377 #define BITFIELD_NBYTES_LIMITED (TARGET_NO_BITFIELD_WORD)
 378
 379 /* Define this macro to be the value 1 if instructions will fail to
 380    work if given data not on the nominal alignment.  If instructions
 381    will merely go slower in that case, define this macro as 0.  */
 382 #undef  STRICT_ALIGNMENT
 383 #define STRICT_ALIGNMENT (TARGET_STRICT_ALIGN)
 384
 385 /* Alignment in bits of the stack boundary.  Note, in order to allow building
 386    one set of libraries with -mno-eabi instead of eabi libraries and non-eabi
 387    versions, just use 64 as the stack boundary.  */
 388 #undef  STACK_BOUNDARY
 389 #define STACK_BOUNDARY  (TARGET_ALTIVEC_ABI ? 128 : 64)
 390
 391 /* Real stack boundary as mandated by the appropriate ABI.  */
 392 #define ABI_STACK_BOUNDARY ((TARGET_EABI && !TARGET_ALTIVEC_ABI) ? 64 : 128)
 393
 394 /* An expression for the alignment of a structure field FIELD if the
 395    alignment computed in the usual way is COMPUTED.  */
 396 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED)                                   \
 397         ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE)     \
 398          ? 128 : COMPUTED)
 399
 400 /* Define this macro as an expression for the alignment of a type
 401    (given by TYPE as a tree node) if the alignment computed in the
 402    usual way is COMPUTED and the alignment explicitly specified was
 403    SPECIFIED.  */
 404 #define ROUND_TYPE_ALIGN(TYPE, COMPUTED, SPECIFIED)                     \
 405         ((TARGET_ALTIVEC  && TREE_CODE (TYPE) == VECTOR_TYPE)           \
 406          ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128)                     \
 407          : MAX (COMPUTED, SPECIFIED))
 408
 409 #undef  BIGGEST_FIELD_ALIGNMENT
 410
 411 /* Use ELF style section commands.  */
 412
 413 #define TEXT_SECTION_ASM_OP     "\t.section\t\".text\""
 414
 415 #define DATA_SECTION_ASM_OP     "\t.section\t\".data\""
 416
 417 #define BSS_SECTION_ASM_OP      "\t.section\t\".bss\""
 418
 419 /* Override elfos.h definition.  */
 420 #undef  INIT_SECTION_ASM_OP
 421 #define INIT_SECTION_ASM_OP "\t.section\t\".init\",\"ax\""
 422
 423 /* Override elfos.h definition.  */
 424 #undef  FINI_SECTION_ASM_OP
 425 #define FINI_SECTION_ASM_OP "\t.section\t\".fini\",\"ax\""
 426
 427 #define TOC_SECTION_ASM_OP "\t.section\t\".got\",\"aw\""
 428
 429 /* Put PC relative got entries in .got2.  */
 430 #define MINIMAL_TOC_SECTION_ASM_OP \
 431   (TARGET_RELOCATABLE || (flag_pic && DEFAULT_ABI != ABI_AIX)           \
 432    ? "\t.section\t\".got2\",\"aw\"" : "\t.section\t\".got1\",\"aw\"")
 433
 434 #define SDATA_SECTION_ASM_OP "\t.section\t\".sdata\",\"aw\""
 435 #define SDATA2_SECTION_ASM_OP "\t.section\t\".sdata2\",\"a\""
 436 #define SBSS_SECTION_ASM_OP "\t.section\t\".sbss\",\"aw\",@nobits"
 437
 438 /* Besides the usual ELF sections, we need a toc section.  */
 439 /* Override elfos.h definition.  */
 440 #undef  EXTRA_SECTIONS
 441 #define EXTRA_SECTIONS in_toc, in_sdata, in_sdata2, in_sbss, in_init, in_fini
 442
 443 /* Override elfos.h definition.  */
 444 #undef  EXTRA_SECTION_FUNCTIONS
 445 #define EXTRA_SECTION_FUNCTIONS                                         \
 446   TOC_SECTION_FUNCTION                                                  \
 447   SDATA_SECTION_FUNCTION                                                \
 448   SDATA2_SECTION_FUNCTION                                               \
 449   SBSS_SECTION_FUNCTION                                                 \
 450   INIT_SECTION_FUNCTION                                                 \
 451   FINI_SECTION_FUNCTION
 452
 453 #define TOC_SECTION_FUNCTION                                            \
 454 void                                                                    \
 455 toc_section ()                                                          \
 456 {                                                                       \
 457   if (in_section != in_toc)                                             \
 458     {                                                                   \
 459       in_section = in_toc;                                              \
 460       if (DEFAULT_ABI == ABI_AIX                                        \
 461           && TARGET_MINIMAL_TOC                                         \
 462           && !TARGET_RELOCATABLE)                                       \
 463         {                                                               \
 464           if (! toc_initialized)                                        \
 465             {                                                           \
 466               toc_initialized = 1;                                      \
 467               fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);       \
 468               (*targetm.asm_out.internal_label) (asm_out_file, "LCTOC", 0); \
 469               fprintf (asm_out_file, "\t.tc ");                         \
 470               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1[TC],"); \
 471               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 472               fprintf (asm_out_file, "\n");                             \
 473                                                                         \
 474               fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
 475               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 476               fprintf (asm_out_file, " = .+32768\n");                   \
 477             }                                                           \
 478           else                                                          \
 479             fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP); \
 480         }                                                               \
 481       else if (DEFAULT_ABI == ABI_AIX && !TARGET_RELOCATABLE)           \
 482         fprintf (asm_out_file, "%s\n", TOC_SECTION_ASM_OP);             \
 483       else                                                              \
 484         {                                                               \
 485           fprintf (asm_out_file, "%s\n", MINIMAL_TOC_SECTION_ASM_OP);   \
 486           if (! toc_initialized)                                        \
 487             {                                                           \
 488               ASM_OUTPUT_INTERNAL_LABEL_PREFIX (asm_out_file, "LCTOC1"); \
 489               fprintf (asm_out_file, " = .+32768\n");                   \
 490               toc_initialized = 1;                                      \
 491             }                                                           \
 492         }                                                               \
 493     }                                                                   \
 494 }                                                                       \
 495                                                                         \
 496 extern int in_toc_section PARAMS ((void));                              \
 497 int in_toc_section ()                                                   \
 498 {                                                                       \
 499   return in_section == in_toc;                                          \
 500 }
 501
 502 #define SDATA_SECTION_FUNCTION                                          \
 503 void                                                                    \
 504 sdata_section ()                                                        \
 505 {                                                                       \
 506   if (in_section != in_sdata)                                           \
 507     {                                                                   \
 508       in_section = in_sdata;                                            \
 509       fprintf (asm_out_file, "%s\n", SDATA_SECTION_ASM_OP);             \
 510     }                                                                   \
 511 }
 512
 513 #define SDATA2_SECTION_FUNCTION                                         \
 514 void                                                                    \
 515 sdata2_section ()                                                       \
 516 {                                                                       \
 517   if (in_section != in_sdata2)                                          \
 518     {                                                                   \
 519       in_section = in_sdata2;                                           \
 520       fprintf (asm_out_file, "%s\n", SDATA2_SECTION_ASM_OP);            \
 521     }                                                                   \
 522 }
 523
 524 #define SBSS_SECTION_FUNCTION                                           \
 525 void                                                                    \
 526 sbss_section ()                                                         \
 527 {                                                                       \
 528   if (in_section != in_sbss)                                            \
 529     {                                                                   \
 530       in_section = in_sbss;                                             \
 531       fprintf (asm_out_file, "%s\n", SBSS_SECTION_ASM_OP);              \
 532     }                                                                   \
 533 }
 534
 535 #define INIT_SECTION_FUNCTION                                           \
 536 void                                                                    \
 537 init_section ()                                                         \
 538 {                                                                       \
 539   if (in_section != in_init)                                            \
 540     {                                                                   \
 541       in_section = in_init;                                             \
 542       fprintf (asm_out_file, "%s\n", INIT_SECTION_ASM_OP);              \
 543     }                                                                   \
 544 }
 545
 546 #define FINI_SECTION_FUNCTION                                           \
 547 void                                                                    \
 548 fini_section ()                                                         \
 549 {                                                                       \
 550   if (in_section != in_fini)                                            \
 551     {                                                                   \
 552       in_section = in_fini;                                             \
 553       fprintf (asm_out_file, "%s\n", FINI_SECTION_ASM_OP);              \
 554     }                                                                   \
 555 }
 556
 557 /* Override default elf definitions.  */
 558 #undef  TARGET_ASM_SELECT_RTX_SECTION
 559 #define TARGET_ASM_SELECT_RTX_SECTION rs6000_elf_select_rtx_section
 560 #undef  TARGET_ASM_SELECT_SECTION
 561 #define TARGET_ASM_SELECT_SECTION  rs6000_elf_select_section
 562 #define TARGET_ASM_UNIQUE_SECTION  rs6000_elf_unique_section
 563
 564 /* Return nonzero if this entry is to be written into the constant pool
 565    in a special way.  We do so if this is a SYMBOL_REF, LABEL_REF or a CONST
 566    containing one of them.  If -mfp-in-toc (the default), we also do
 567    this for floating-point constants.  We actually can only do this
 568    if the FP formats of the target and host machines are the same, but
 569    we can't check that since not every file that uses
 570    GO_IF_LEGITIMATE_ADDRESS_P includes real.h.
 571
 572    Unlike AIX, we don't key off of -mminimal-toc, but instead do not
 573    allow floating point constants in the TOC if -mrelocatable.  */
 574
 575 #undef  ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
 576 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE)                        \
 577   (TARGET_TOC                                                           \
 578    && (GET_CODE (X) == SYMBOL_REF                                       \
 579        || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS      \
 580            && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF)           \
 581        || GET_CODE (X) == LABEL_REF                                     \
 582        || (GET_CODE (X) == CONST_INT                                    \
 583            && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode))      \
 584        || (!TARGET_NO_FP_IN_TOC                                         \
 585            && !TARGET_RELOCATABLE                                       \
 586            && GET_CODE (X) == CONST_DOUBLE                              \
 587            && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT               \
 588            && BITS_PER_WORD == HOST_BITS_PER_INT)))
 589
 590 /* These macros generate the special .type and .size directives which
 591    are used to set the corresponding fields of the linker symbol table
 592    entries in an ELF object file under SVR4.  These macros also output
 593    the starting labels for the relevant functions/objects.  */
 594
 595 /* Write the extra assembler code needed to declare a function properly.
 596    Some svr4 assemblers need to also have something extra said about the
 597    function's return value.  We allow for that here.  */
 598
 599 extern int rs6000_pic_labelno;
 600
 601 /* Override elfos.h definition.  */
 602 #undef  ASM_DECLARE_FUNCTION_NAME
 603 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)                     \
 604   rs6000_elf_declare_function_name ((FILE), (NAME), (DECL))
 605
 606 /* The USER_LABEL_PREFIX stuff is affected by the -fleading-underscore
 607    flag.  The LOCAL_LABEL_PREFIX variable is used by dbxelf.h.  */
 608
 609 #define LOCAL_LABEL_PREFIX "."
 610 #define USER_LABEL_PREFIX ""
 611
 612 /* svr4.h overrides (*targetm.asm_out.internal_label).  */
 613
 614 #define ASM_OUTPUT_INTERNAL_LABEL_PREFIX(FILE,PREFIX)   \
 615   asm_fprintf (FILE, "%L%s", PREFIX)
 616
 617 /* Globalizing directive for a label.  */
 618 #define GLOBAL_ASM_OP "\t.globl "
 619
 620 /* This says how to output assembler code to declare an
 621    uninitialized internal linkage data object.  Under SVR4,
 622    the linker seems to want the alignment of data objects
 623    to depend on their types.  We do exactly that here.  */
 624
 625 #define LOCAL_ASM_OP    "\t.local\t"
 626
 627 #define LCOMM_ASM_OP    "\t.lcomm\t"
 628
 629 /* Override elfos.h definition.  */
 630 #undef  ASM_OUTPUT_ALIGNED_LOCAL
 631 #define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN)               \
 632 do {                                                                    \
 633   extern unsigned HOST_WIDE_INT g_switch_value;                         \
 634                                                                         \
 635   if (rs6000_sdata != SDATA_NONE && (SIZE) > 0                          \
 636       && (SIZE) <= g_switch_value)                                      \
 637     {                                                                   \
 638       sbss_section ();                                                  \
 639       ASM_OUTPUT_ALIGN (FILE, exact_log2 (ALIGN / BITS_PER_UNIT));      \
 640       ASM_OUTPUT_LABEL (FILE, NAME);                                    \
 641       ASM_OUTPUT_SKIP (FILE, SIZE);                                     \
 642       if (!flag_inhibit_size_directive && (SIZE) > 0)                   \
 643         ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE);                   \
 644     }                                                                   \
 645   else                                                                  \
 646     {                                                                   \
 647       fprintf (FILE, "%s", LCOMM_ASM_OP);                               \
 648       assemble_name ((FILE), (NAME));                                   \
 649       fprintf ((FILE), ","HOST_WIDE_INT_PRINT_UNSIGNED",%u\n",          \
 650                (SIZE), (ALIGN) / BITS_PER_UNIT);                        \
 651     }                                                                   \
 652   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");                     \
 653 } while (0)
 654
 655 /* Describe how to emit uninitialized external linkage items.  */
 656 #define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN)           \
 657 do {                                                                    \
 658   ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN);                   \
 659 } while (0)
 660
 661 #ifdef HAVE_GAS_MAX_SKIP_P2ALIGN
 662 /* To support -falign-* switches we need to use .p2align so
 663    that alignment directives in code sections will be padded
 664    with no-op instructions, rather than zeroes.  */
 665 #define ASM_OUTPUT_MAX_SKIP_ALIGN(FILE,LOG,MAX_SKIP)                    \
 666   if ((LOG) != 0)                                                       \
 667     {                                                                   \
 668       if ((MAX_SKIP) == 0)                                              \
 669         fprintf ((FILE), "\t.p2align %d\n", (LOG));                     \
 670       else                                                              \
 671         fprintf ((FILE), "\t.p2align %d,,%d\n", (LOG), (MAX_SKIP));     \
 672     }
 673 #endif
 674
 675 /* This is how to output code to push a register on the stack.
 676    It need not be very fast code.
 677
 678    On the rs6000, we must keep the backchain up to date.  In order
 679    to simplify things, always allocate 16 bytes for a push (System V
 680    wants to keep stack aligned to a 16 byte boundary).  */
 681
 682 #define ASM_OUTPUT_REG_PUSH(FILE, REGNO)                                \
 683 do {                                                                    \
 684   if (DEFAULT_ABI == ABI_V4)                                            \
 685     asm_fprintf (FILE,                                                  \
 686                  "\t{stu|stwu} %s,-16(%s)\n\t{st|stw} %s,12(%s)\n",     \
 687                  reg_names[1], reg_names[1], reg_names[REGNO],          \
 688                  reg_names[1]);                                         \
 689 } while (0)
 690
 691 /* This is how to output an insn to pop a register from the stack.
 692    It need not be very fast code.  */
 693
 694 #define ASM_OUTPUT_REG_POP(FILE, REGNO)                                 \
 695 do {                                                                    \
 696   if (DEFAULT_ABI == ABI_V4)                                            \
 697     asm_fprintf (FILE,                                                  \
 698                  "\t{l|lwz} %s,12(%s)\n\t{ai|addic} %s,%s,16\n",        \
 699                  reg_names[REGNO], reg_names[1], reg_names[1],          \
 700                  reg_names[1]);                                         \
 701 } while (0)
 702
 703 /* Switch  Recognition by gcc.c.  Add -G xx support.  */
 704
 705 /* Override svr4.h definition.  */
 706 #undef  SWITCH_TAKES_ARG
 707 #define SWITCH_TAKES_ARG(CHAR)                                          \
 708   ((CHAR) == 'D' || (CHAR) == 'U' || (CHAR) == 'o'                      \
 709    || (CHAR) == 'e' || (CHAR) == 'T' || (CHAR) == 'u'                   \
 710    || (CHAR) == 'I' || (CHAR) == 'm' || (CHAR) == 'x'                   \
 711    || (CHAR) == 'L' || (CHAR) == 'A' || (CHAR) == 'V'                   \
 712    || (CHAR) == 'B' || (CHAR) == 'b' || (CHAR) == 'G')
 713
 714 /* Output .file.  */
 715 /* Override elfos.h definition.  */
 716 #undef  ASM_FILE_START
 717 #define ASM_FILE_START(FILE)                                            \
 718 do {                                                                    \
 719   output_file_directive ((FILE), main_input_filename);                  \
 720   rs6000_file_start (FILE, TARGET_CPU_DEFAULT);                         \
 721 } while (0)
 722
 723
 724 extern int fixuplabelno;
 725
 726 /* Handle constructors specially for -mrelocatable.  */
 727 #define TARGET_ASM_CONSTRUCTOR  rs6000_elf_asm_out_constructor
 728 #define TARGET_ASM_DESTRUCTOR   rs6000_elf_asm_out_destructor
 729
 730 /* This is the end of what might become sysv4.h.  */
 731
 732 /* Use DWARF 2 debugging information by default.  */
 733 #undef  PREFERRED_DEBUGGING_TYPE
 734 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
 735
 736 /* Historically we have also supported stabs debugging.  */
 737 #define DBX_DEBUGGING_INFO 1
 738
 739 #define TARGET_ENCODE_SECTION_INFO  rs6000_elf_encode_section_info
 740 #define TARGET_IN_SMALL_DATA_P  rs6000_elf_in_small_data_p
 741 #define TARGET_SECTION_TYPE_FLAGS  rs6000_elf_section_type_flags
 742
 743 /* The ELF version doesn't encode [DS] or whatever at the end of symbols.  */
 744
 745 #define RS6000_OUTPUT_BASENAME(FILE, NAME)      \
 746     assemble_name (FILE, NAME)
 747
 748 /* We have to output the stabs for the function name *first*, before
 749    outputting its label.  */
 750
 751 #define DBX_FUNCTION_FIRST
 752
 753 /* This is the end of what might become sysv4dbx.h.  */
 754
 755 #ifndef TARGET_VERSION
 756 #define TARGET_VERSION fprintf (stderr, " (PowerPC System V.4)");
 757 #endif
 758 \f
 759 #define TARGET_OS_SYSV_CPP_BUILTINS()     \
 760   do                                      \
 761     {                                     \
 762       if (flag_pic == 1)                  \
 763         {                                 \
 764           builtin_define ("__pic__=1");   \
 765           builtin_define ("__PIC__=1");   \
 766         }                                 \
 767       else if (flag_pic == 2)             \
 768         {                                 \
 769           builtin_define ("__pic__=2");   \
 770           builtin_define ("__PIC__=2");   \
 771         }                                 \
 772       if (target_flags_explicit           \
 773           & MASK_RELOCATABLE)             \
 774         builtin_define ("_RELOCATABLE");  \
 775     }                                     \
 776   while (0)
 777
 778 #ifndef TARGET_OS_CPP_BUILTINS
 779 #define TARGET_OS_CPP_BUILTINS()          \
 780   do                                      \
 781     {                                     \
 782       builtin_define_std ("PPC");         \
 783       builtin_define_std ("unix");        \
 784       builtin_define ("__svr4__");        \
 785       builtin_assert ("system=unix");     \
 786       builtin_assert ("system=svr4");     \
 787       builtin_assert ("cpu=powerpc");     \
 788       builtin_assert ("machine=powerpc"); \
 789       TARGET_OS_SYSV_CPP_BUILTINS ();     \
 790     }                                     \
 791   while (0)
 792 #endif
 793
 794 /* Pass various options to the assembler.  */
 795 /* Override svr4.h definition.  */
 796 #undef  ASM_SPEC
 797 #define ASM_SPEC "%(asm_cpu) \
 798 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
 799 %{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
 800 %{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
 801 %{memb|msdata|msdata=eabi: -memb} \
 802 %{mlittle|mlittle-endian:-mlittle; \
 803   mbig|mbig-endian      :-mbig;    \
 804   mcall-aixdesc |                  \
 805   mcall-freebsd |                  \
 806   mcall-netbsd  |                  \
 807   mcall-linux   |                  \
 808   mcall-gnu             :-mbig;    \
 809   mcall-i960-old        :-mlittle}"
 810
 811 #define CC1_ENDIAN_BIG_SPEC ""
 812
 813 #define CC1_ENDIAN_LITTLE_SPEC "\
 814 %{!mstrict-align: %{!mno-strict-align: \
 815     %{!mcall-i960-old: \
 816         -mstrict-align \
 817     } \
 818 }}"
 819
 820 #define CC1_ENDIAN_DEFAULT_SPEC "%(cc1_endian_big)"
 821
 822 /* Pass -G xxx to the compiler and set correct endian mode.  */
 823 #define CC1_SPEC "%{G*} \
 824 %{mlittle|mlittle-endian: %(cc1_endian_little);           \
 825   mbig   |mbig-endian   : %(cc1_endian_big);              \
 826   mcall-aixdesc |                                         \
 827   mcall-freebsd |                                         \
 828   mcall-netbsd  |                                         \
 829   mcall-linux   |                                         \
 830   mcall-gnu             : -mbig %(cc1_endian_big);        \
 831   mcall-i960-old        : -mlittle %(cc1_endian_little);  \
 832                         : %(cc1_endian_default)}          \
 833 %{mno-sdata: -msdata=none } \
 834 %{meabi: %{!mcall-*: -mcall-sysv }} \
 835 %{!meabi: %{!mno-eabi: \
 836     %{mrelocatable: -meabi } \
 837     %{mcall-freebsd: -mno-eabi } \
 838     %{mcall-i960-old: -meabi } \
 839     %{mcall-linux: -mno-eabi } \
 840     %{mcall-gnu: -mno-eabi } \
 841     %{mcall-netbsd: -mno-eabi }}} \
 842 %{msdata: -msdata=default} \
 843 %{mno-sdata: -msdata=none} \
 844 %{profile: -p}"
 845
 846 /* Don't put -Y P,<path> for cross compilers.  */
 847 #ifndef CROSS_COMPILE
 848 #define LINK_PATH_SPEC "\
 849 %{!R*:%{L*:-R %*}} \
 850 %{!nostdlib: %{!YP,*: \
 851     %{compat-bsd: \
 852         %{p:-Y P,/usr/ucblib:/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 853         %{!p:-Y P,/usr/ucblib:/usr/ccs/lib:/usr/lib}} \
 854         %{!R*: %{!L*: -R /usr/ucblib}} \
 855     %{!compat-bsd: \
 856         %{p:-Y P,/usr/ccs/lib/libp:/usr/lib/libp:/usr/ccs/lib:/usr/lib} \
 857         %{!p:-Y P,/usr/ccs/lib:/usr/lib}}}}"
 858
 859 #else
 860 #define LINK_PATH_SPEC ""
 861 #endif
 862
 863 /* Default starting address if specified.  */
 864 #define LINK_START_SPEC "\
 865 %{mads         : %(link_start_ads)         ; \
 866   myellowknife : %(link_start_yellowknife) ; \
 867   mmvme        : %(link_start_mvme)        ; \
 868   msim         : %(link_start_sim)         ; \
 869   mwindiss     : %(link_start_windiss)     ; \
 870   mcall-freebsd: %(link_start_freebsd)     ; \
 871   mcall-linux  : %(link_start_linux)       ; \
 872   mcall-gnu    : %(link_start_gnu)         ; \
 873   mcall-netbsd : %(link_start_netbsd)      ; \
 874                : %(link_start_default)     }"
 875
 876 #define LINK_START_DEFAULT_SPEC ""
 877
 878 /* Override svr4.h definition.  */
 879 #undef  LINK_SPEC
 880 #define LINK_SPEC "\
 881 %{h*} %{v:-V} %{!msdata=none:%{G*}} %{msdata=none:-G0} \
 882 %{YP,*} %{R*} \
 883 %{Qy:} %{!Qn:-Qy} \
 884 %(link_shlib) \
 885 %{!Wl,-T*: %{!T*: %(link_start) }} \
 886 %(link_target) \
 887 %(link_os)"
 888
 889 /* For now, turn off shared libraries by default.  */
 890 #ifndef SHARED_LIB_SUPPORT
 891 #define NO_SHARED_LIB_SUPPORT
 892 #endif
 893
 894 #ifndef NO_SHARED_LIB_SUPPORT
 895 /* Shared libraries are default.  */
 896 #define LINK_SHLIB_SPEC "\
 897 %{!static: %(link_path) %{!R*:%{L*:-R %*}}} \
 898 %{mshlib: } \
 899 %{static:-dn -Bstatic} \
 900 %{shared:-G -dy -z text} \
 901 %{symbolic:-Bsymbolic -G -dy -z text}"
 902
 903 #else
 904 /* Shared libraries are not default.  */
 905 #define LINK_SHLIB_SPEC "\
 906 %{mshlib: %(link_path) } \
 907 %{!mshlib: %{!shared: %{!symbolic: -dn -Bstatic}}} \
 908 %{static: } \
 909 %{shared:-G -dy -z text %(link_path) } \
 910 %{symbolic:-Bsymbolic -G -dy -z text %(link_path) }"
 911 #endif
 912
 913 /* Override the default target of the linker.  */
 914 #define LINK_TARGET_SPEC "\
 915 %{mlittle: --oformat elf32-powerpcle } %{mlittle-endian: --oformat elf32-powerpcle } \
 916 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
 917     %{mcall-i960-old: --oformat elf32-powerpcle} \
 918   }}}}"
 919
 920 /* Any specific OS flags.  */
 921 #define LINK_OS_SPEC "\
 922 %{mads         : %(link_os_ads)         ; \
 923   myellowknife : %(link_os_yellowknife) ; \
 924   mmvme        : %(link_os_mvme)        ; \
 925   msim         : %(link_os_sim)         ; \
 926   mwindiss     : %(link_os_windiss)     ; \
 927   mcall-freebsd: %(link_os_freebsd)     ; \
 928   mcall-linux  : %(link_os_linux)       ; \
 929   mcall-gnu    : %(link_os_gnu)         ; \
 930   mcall-netbsd : %(link_os_netbsd)      ; \
 931                : %(link_os_default)     }"
 932
 933 #define LINK_OS_DEFAULT_SPEC ""
 934
 935 /* Override rs6000.h definition.  */
 936 #undef  CPP_SPEC
 937 #define CPP_SPEC "%{posix: -D_POSIX_SOURCE} \
 938 %{mads         : %(cpp_os_ads)         ; \
 939   myellowknife : %(cpp_os_yellowknife) ; \
 940   mmvme        : %(cpp_os_mvme)        ; \
 941   msim         : %(cpp_os_sim)         ; \
 942   mwindiss     : %(cpp_os_windiss)     ; \
 943   mcall-freebsd: %(cpp_os_freebsd)     ; \
 944   mcall-linux  : %(cpp_os_linux)       ; \
 945   mcall-gnu    : %(cpp_os_gnu)         ; \
 946   mcall-netbsd : %(cpp_os_netbsd)      ; \
 947                : %(cpp_os_default)     }"
 948
 949 #define CPP_OS_DEFAULT_SPEC ""
 950
 951 /* Override svr4.h definition.  */
 952 #undef  STARTFILE_SPEC
 953 #define STARTFILE_SPEC "\
 954 %{mads         : %(startfile_ads)         ; \
 955   myellowknife : %(startfile_yellowknife) ; \
 956   mmvme        : %(startfile_mvme)        ; \
 957   msim         : %(startfile_sim)         ; \
 958   mwindiss     : %(startfile_windiss)     ; \
 959   mcall-freebsd: %(startfile_freebsd)     ; \
 960   mcall-linux  : %(startfile_linux)       ; \
 961   mcall-gnu    : %(startfile_gnu)         ; \
 962   mcall-netbsd : %(startfile_netbsd)      ; \
 963                : %(startfile_default)     }"
 964
 965 #define STARTFILE_DEFAULT_SPEC ""
 966
 967 /* Override svr4.h definition.  */
 968 #undef  LIB_SPEC
 969 #define LIB_SPEC "\
 970 %{mads         : %(lib_ads)         ; \
 971   myellowknife : %(lib_yellowknife) ; \
 972   mmvme        : %(lib_mvme)        ; \
 973   msim         : %(lib_sim)         ; \
 974   mwindiss     : %(lib_windiss)     ; \
 975   mcall-freebsd: %(lib_freebsd)     ; \
 976   mcall-linux  : %(lib_linux)       ; \
 977   mcall-gnu    : %(lib_gnu)         ; \
 978   mcall-netbsd : %(lib_netbsd)      ; \
 979                : %(lib_default)     }"
 980
 981 #define LIB_DEFAULT_SPEC ""
 982
 983 /* Override svr4.h definition.  */
 984 #undef  ENDFILE_SPEC
 985 #define ENDFILE_SPEC "\
 986 %{mads         : crtsavres.o%s        %(endfile_ads)         ; \
 987   myellowknife : crtsavres.o%s        %(endfile_yellowknife) ; \
 988   mmvme        : crtsavres.o%s        %(endfile_mvme)        ; \
 989   msim         : crtsavres.o%s        %(endfile_sim)         ; \
 990   mwindiss     :                      %(endfile_windiss)     ; \
 991   mcall-freebsd: crtsavres.o%s        %(endfile_freebsd)     ; \
 992   mcall-linux  : crtsavres.o%s        %(endfile_linux)       ; \
 993   mcall-gnu    : crtsavres.o%s        %(endfile_gnu)         ; \
 994   mcall-netbsd : crtsavres.o%s        %(endfile_netbsd)      ; \
 995                : %(crtsavres_default) %(endfile_default)     }"
 996
 997 #define CRTSAVRES_DEFAULT_SPEC "crtsavres.o%s"
 998
 999 #define ENDFILE_DEFAULT_SPEC ""
1000
1001 /* Motorola ADS support.  */
1002 #define LIB_ADS_SPEC "--start-group -lads -lc --end-group"
1003
1004 #define STARTFILE_ADS_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1005
1006 #define ENDFILE_ADS_SPEC "crtend.o%s ecrtn.o%s"
1007
1008 #define LINK_START_ADS_SPEC "-T ads.ld%s"
1009
1010 #define LINK_OS_ADS_SPEC ""
1011
1012 #define CPP_OS_ADS_SPEC ""
1013
1014 /* Motorola Yellowknife support.  */
1015 #define LIB_YELLOWKNIFE_SPEC "--start-group -lyk -lc --end-group"
1016
1017 #define STARTFILE_YELLOWKNIFE_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1018
1019 #define ENDFILE_YELLOWKNIFE_SPEC "crtend.o%s ecrtn.o%s"
1020
1021 #define LINK_START_YELLOWKNIFE_SPEC "-T yellowknife.ld%s"
1022
1023 #define LINK_OS_YELLOWKNIFE_SPEC ""
1024
1025 #define CPP_OS_YELLOWKNIFE_SPEC ""
1026
1027 /* Motorola MVME support.  */
1028 #define LIB_MVME_SPEC "--start-group -lmvme -lc --end-group"
1029
1030 #define STARTFILE_MVME_SPEC "ecrti.o%s crt0.o%s crtbegin.o%s"
1031
1032 #define ENDFILE_MVME_SPEC "crtend.o%s ecrtn.o%s"
1033
1034 #define LINK_START_MVME_SPEC "-Ttext 0x40000"
1035
1036 #define LINK_OS_MVME_SPEC ""
1037
1038 #define CPP_OS_MVME_SPEC ""
1039
1040 /* PowerPC simulator based on netbsd system calls support.  */
1041 #define LIB_SIM_SPEC "--start-group -lsim -lc --end-group"
1042
1043 #define STARTFILE_SIM_SPEC "ecrti.o%s sim-crt0.o%s crtbegin.o%s"
1044
1045 #define ENDFILE_SIM_SPEC "crtend.o%s ecrtn.o%s"
1046
1047 #define LINK_START_SIM_SPEC ""
1048
1049 #define LINK_OS_SIM_SPEC "-m elf32ppcsim"
1050
1051 #define CPP_OS_SIM_SPEC ""
1052
1053 /* FreeBSD support.  */
1054
1055 #define CPP_OS_FREEBSD_SPEC     "\
1056   -D__PPC__ -D__ppc__ -D__PowerPC__ -D__powerpc__ \
1057   -Acpu=powerpc -Amachine=powerpc"
1058
1059 #define STARTFILE_FREEBSD_SPEC  FBSD_STARTFILE_SPEC
1060 #define ENDFILE_FREEBSD_SPEC    FBSD_ENDFILE_SPEC
1061 #define LIB_FREEBSD_SPEC        FBSD_LIB_SPEC
1062 #define LINK_START_FREEBSD_SPEC ""
1063
1064 #define LINK_OS_FREEBSD_SPEC "\
1065   %{p:%e`-p' not supported; use `-pg' and gprof(1)} \
1066     %{Wl,*:%*} \
1067     %{v:-V} \
1068     %{assert*} %{R*} %{rpath*} %{defsym*} \
1069     %{shared:-Bshareable %{h*} %{soname*}} \
1070     %{!shared: \
1071       %{!static: \
1072         %{rdynamic: -export-dynamic} \
1073         %{!dynamic-linker: -dynamic-linker /usr/libexec/ld-elf.so.1}} \
1074       %{static:-Bstatic}} \
1075     %{symbolic:-Bsymbolic}"
1076
1077 /* GNU/Linux support.  */
1078 #ifdef USE_GNULIBC_1
1079 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1080 %{!mnewlib: -lc }"
1081 #else
1082 #define LIB_LINUX_SPEC "%{mnewlib: --start-group -llinux -lc --end-group } \
1083 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1084 %{profile:-lc_p} %{!profile:-lc}}}"
1085 #endif
1086
1087 #ifdef USE_GNULIBC_1
1088 #define STARTFILE_LINUX_SPEC "\
1089 %{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
1090 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1091 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1092 #elif defined HAVE_LD_PIE
1093 #define STARTFILE_LINUX_SPEC "\
1094 %{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
1095 %{mnewlib:ecrti.o%s;:crti.o%s} \
1096 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1097 #else
1098 #define STARTFILE_LINUX_SPEC "\
1099 %{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}} \
1100 %{mnewlib:ecrti.o%s;:crti.o%s} \
1101 %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
1102 #endif
1103
1104 #define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1105 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1106
1107 #define LINK_START_LINUX_SPEC ""
1108
1109 #define LINK_OS_LINUX_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1110   %{rdynamic:-export-dynamic} \
1111   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1112
1113 #if !defined(USE_GNULIBC_1) && defined(HAVE_LD_EH_FRAME_HDR)
1114 # define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
1115 #endif
1116
1117 #ifdef USE_GNULIBC_1
1118 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1119 %{!undef:                                                         \
1120   %{!ansi:                                                        \
1121     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1122     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1123 -Asystem=unix -Asystem=posix"
1124 #else
1125 #define CPP_OS_LINUX_SPEC "-D__unix__ -D__gnu_linux__ -D__linux__ \
1126 %{!undef:                                                         \
1127   %{!ansi:                                                        \
1128     %{!std=*:-Dunix -D__unix -Dlinux -D__linux}                   \
1129     %{std=gnu*:-Dunix -D__unix -Dlinux -D__linux}}}               \
1130 -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1131 #endif
1132
1133 /* GNU/Hurd support.  */
1134 #define LIB_GNU_SPEC "%{mnewlib: --start-group -lgnu -lc --end-group } \
1135 %{!mnewlib: %{shared:-lc} %{!shared: %{pthread:-lpthread } \
1136 %{profile:-lc_p} %{!profile:-lc}}}"
1137
1138 #define STARTFILE_GNU_SPEC "\
1139 %{!shared: %{!static: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}} \
1140 %{static: %{pg:gcrt0.o%s} %{!pg:%{p:gcrt0.o%s} %{!p:crt0.o%s}}} \
1141 %{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
1142 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1143
1144 #define ENDFILE_GNU_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1145 %{mnewlib: ecrtn.o%s} %{!mnewlib: crtn.o%s}"
1146
1147 #define LINK_START_GNU_SPEC ""
1148
1149 #define LINK_OS_GNU_SPEC "-m elf32ppclinux %{!shared: %{!static: \
1150   %{rdynamic:-export-dynamic} \
1151   %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
1152
1153 #define CPP_OS_GNU_SPEC "-D__unix__ -D__gnu_hurd__ -D__GNU__    \
1154 %{!undef:                                                       \
1155   %{!ansi: -Dunix -D__unix}}                                    \
1156 -Asystem=gnu -Asystem=unix -Asystem=posix %{pthread:-D_REENTRANT}"
1157
1158 /* NetBSD support.  */
1159 #define LIB_NETBSD_SPEC "\
1160 %{profile:-lgmon -lc_p} %{!profile:-lc}"
1161
1162 #define STARTFILE_NETBSD_SPEC "\
1163 ncrti.o%s crt0.o%s \
1164 %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
1165
1166 #define ENDFILE_NETBSD_SPEC "\
1167 %{!shared:crtend.o%s} %{shared:crtendS.o%s} \
1168 ncrtn.o%s"
1169
1170 #define LINK_START_NETBSD_SPEC "\
1171 "
1172
1173 #define LINK_OS_NETBSD_SPEC "\
1174 %{!shared: %{!static: \
1175   %{rdynamic:-export-dynamic} \
1176   %{!dynamic-linker:-dynamic-linker /usr/libexec/ld.elf_so}}}"
1177
1178 #define CPP_OS_NETBSD_SPEC "\
1179 -D__powerpc__ -D__NetBSD__ -D__KPRINTF_ATTRIBUTE__"
1180
1181 /* WindISS support.  */
1182
1183 #define LIB_WINDISS_SPEC "--start-group -li -lcfp -lwindiss -lram -limpl -limpfp --end-group"
1184
1185 #define CPP_OS_WINDISS_SPEC "\
1186 -D__rtasim \
1187 -D__EABI__ \
1188 -D__ppc \
1189 %{!msoft-float: -D__hardfp} \
1190 "
1191
1192 #define STARTFILE_WINDISS_SPEC "crt0.o%s crtbegin.o%s"
1193
1194 #define ENDFILE_WINDISS_SPEC "crtend.o%s"
1195
1196 #define LINK_START_WINDISS_SPEC ""
1197
1198 #define LINK_OS_WINDISS_SPEC ""
1199
1200 /* Define any extra SPECS that the compiler needs to generate.  */
1201 /* Override rs6000.h definition.  */
1202 #undef  SUBTARGET_EXTRA_SPECS
1203 #define SUBTARGET_EXTRA_SPECS                                           \
1204   { "crtsavres_default",        CRTSAVRES_DEFAULT_SPEC },              \
1205   { "lib_ads",                  LIB_ADS_SPEC },                         \
1206   { "lib_yellowknife",          LIB_YELLOWKNIFE_SPEC },                 \
1207   { "lib_mvme",                 LIB_MVME_SPEC },                        \
1208   { "lib_sim",                  LIB_SIM_SPEC },                         \
1209   { "lib_freebsd",              LIB_FREEBSD_SPEC },                     \
1210   { "lib_gnu",                  LIB_GNU_SPEC },                         \
1211   { "lib_linux",                LIB_LINUX_SPEC },                       \
1212   { "lib_netbsd",               LIB_NETBSD_SPEC },                      \
1213   { "lib_windiss",              LIB_WINDISS_SPEC },                     \
1214   { "lib_default",              LIB_DEFAULT_SPEC },                     \
1215   { "startfile_ads",            STARTFILE_ADS_SPEC },                   \
1216   { "startfile_yellowknife",    STARTFILE_YELLOWKNIFE_SPEC },           \
1217   { "startfile_mvme",           STARTFILE_MVME_SPEC },                  \
1218   { "startfile_sim",            STARTFILE_SIM_SPEC },                   \
1219   { "startfile_freebsd",        STARTFILE_FREEBSD_SPEC },               \
1220   { "startfile_gnu",            STARTFILE_GNU_SPEC },                   \
1221   { "startfile_linux",          STARTFILE_LINUX_SPEC },                 \
1222   { "startfile_netbsd",         STARTFILE_NETBSD_SPEC },                \
1223   { "startfile_windiss",        STARTFILE_WINDISS_SPEC },               \
1224   { "startfile_default",        STARTFILE_DEFAULT_SPEC },               \
1225   { "endfile_ads",              ENDFILE_ADS_SPEC },                     \
1226   { "endfile_yellowknife",      ENDFILE_YELLOWKNIFE_SPEC },             \
1227   { "endfile_mvme",             ENDFILE_MVME_SPEC },                    \
1228   { "endfile_sim",              ENDFILE_SIM_SPEC },                     \
1229   { "endfile_freebsd",          ENDFILE_FREEBSD_SPEC },                 \
1230   { "endfile_gnu",              ENDFILE_GNU_SPEC },                     \
1231   { "endfile_linux",            ENDFILE_LINUX_SPEC },                   \
1232   { "endfile_netbsd",           ENDFILE_NETBSD_SPEC },                  \
1233   { "endfile_windiss",          ENDFILE_WINDISS_SPEC },                 \
1234   { "endfile_default",          ENDFILE_DEFAULT_SPEC },                 \
1235   { "link_path",                LINK_PATH_SPEC },                       \
1236   { "link_shlib",               LINK_SHLIB_SPEC },                      \
1237   { "link_target",              LINK_TARGET_SPEC },                     \
1238   { "link_start",               LINK_START_SPEC },                      \
1239   { "link_start_ads",           LINK_START_ADS_SPEC },                  \
1240   { "link_start_yellowknife",   LINK_START_YELLOWKNIFE_SPEC },          \
1241   { "link_start_mvme",          LINK_START_MVME_SPEC },                 \
1242   { "link_start_sim",           LINK_START_SIM_SPEC },                  \
1243   { "link_start_freebsd",       LINK_START_FREEBSD_SPEC },              \
1244   { "link_start_gnu",           LINK_START_GNU_SPEC },                  \
1245   { "link_start_linux",         LINK_START_LINUX_SPEC },                \
1246   { "link_start_netbsd",        LINK_START_NETBSD_SPEC },               \
1247   { "link_start_windiss",       LINK_START_WINDISS_SPEC },              \
1248   { "link_start_default",       LINK_START_DEFAULT_SPEC },              \
1249   { "link_os",                  LINK_OS_SPEC },                         \
1250   { "link_os_ads",              LINK_OS_ADS_SPEC },                     \
1251   { "link_os_yellowknife",      LINK_OS_YELLOWKNIFE_SPEC },             \
1252   { "link_os_mvme",             LINK_OS_MVME_SPEC },                    \
1253   { "link_os_sim",              LINK_OS_SIM_SPEC },                     \
1254   { "link_os_freebsd",          LINK_OS_FREEBSD_SPEC },                 \
1255   { "link_os_linux",            LINK_OS_LINUX_SPEC },                   \
1256   { "link_os_gnu",              LINK_OS_GNU_SPEC },                     \
1257   { "link_os_netbsd",           LINK_OS_NETBSD_SPEC },                  \
1258   { "link_os_windiss",          LINK_OS_WINDISS_SPEC },                 \
1259   { "link_os_default",          LINK_OS_DEFAULT_SPEC },                 \
1260   { "cc1_endian_big",           CC1_ENDIAN_BIG_SPEC },                  \
1261   { "cc1_endian_little",        CC1_ENDIAN_LITTLE_SPEC },               \
1262   { "cc1_endian_default",       CC1_ENDIAN_DEFAULT_SPEC },              \
1263   { "cpp_os_ads",               CPP_OS_ADS_SPEC },                      \
1264   { "cpp_os_yellowknife",       CPP_OS_YELLOWKNIFE_SPEC },              \
1265   { "cpp_os_mvme",              CPP_OS_MVME_SPEC },                     \
1266   { "cpp_os_sim",               CPP_OS_SIM_SPEC },                      \
1267   { "cpp_os_freebsd",           CPP_OS_FREEBSD_SPEC },                  \
1268   { "cpp_os_gnu",               CPP_OS_GNU_SPEC },                      \
1269   { "cpp_os_linux",             CPP_OS_LINUX_SPEC },                    \
1270   { "cpp_os_netbsd",            CPP_OS_NETBSD_SPEC },                   \
1271   { "cpp_os_windiss",           CPP_OS_WINDISS_SPEC },                  \
1272   { "cpp_os_default",           CPP_OS_DEFAULT_SPEC },                  \
1273   SUBSUBTARGET_EXTRA_SPECS
1274
1275 #define SUBSUBTARGET_EXTRA_SPECS
1276
1277 /* Define this macro as a C expression for the initializer of an
1278    array of string to tell the driver program which options are
1279    defaults for this target and thus do not need to be handled
1280    specially when using `MULTILIB_OPTIONS'.
1281
1282    Do not define this macro if `MULTILIB_OPTIONS' is not defined in
1283    the target makefile fragment or if none of the options listed in
1284    `MULTILIB_OPTIONS' are set by default.  *Note Target Fragment::.  */
1285
1286 #define MULTILIB_DEFAULTS { "mbig", "mcall-sysv" }
1287
1288 /* Define this macro if the code for function profiling should come
1289    before the function prologue.  Normally, the profiling code comes
1290    after.  */
1291 #define PROFILE_BEFORE_PROLOGUE 1
1292
1293 /* Function name to call to do profiling.  */
1294 #define RS6000_MCOUNT "_mcount"
1295
1296 /* Define this macro (to a value of 1) if you want to support the
1297    Win32 style pragmas #pragma pack(push,<n>)' and #pragma
1298    pack(pop)'.  The pack(push,<n>) pragma specifies the maximum
1299    alignment (in bytes) of fields within a structure, in much the
1300    same way as the __aligned__' and __packed__' __attribute__'s
1301    do.  A pack value of zero resets the behavior to the default.
1302    Successive invocations of this pragma cause the previous values to
1303    be stacked, so that invocations of #pragma pack(pop)' will return
1304    to the previous value.  */
1305
1306 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
1307
1308 /* Define library calls for quad FP operations.  These are all part of the
1309    PowerPC 32bit ABI.  */
1310 #define ADDTF3_LIBCALL "_q_add"
1311 #define DIVTF3_LIBCALL "_q_div"
1312 #define EXTENDDFTF2_LIBCALL "_q_dtoq"
1313 #define EQTF2_LIBCALL "_q_feq"
1314 #define GETF2_LIBCALL "_q_fge"
1315 #define GTTF2_LIBCALL "_q_fgt"
1316 #define LETF2_LIBCALL "_q_fle"
1317 #define LTTF2_LIBCALL "_q_flt"
1318 #define NETF2_LIBCALL "_q_fne"
1319 #define FLOATSITF2_LIBCALL "_q_itoq"
1320 #define MULTF3_LIBCALL "_q_mul"
1321 #define NEGTF2_LIBCALL "_q_neg"
1322 #define TRUNCTFDF2_LIBCALL "_q_qtod"
1323 #define FIX_TRUNCTFSI2_LIBCALL "_q_qtoi"
1324 #define TRUNCTFSF2_LIBCALL "_q_qtos"
1325 #define FIXUNS_TRUNCTFSI2_LIBCALL "_q_qtou"
1326 #define SQRTTF_LIBCALL "_q_sqrt"
1327 #define EXTENDSFTF2_LIBCALL "_q_stoq"
1328 #define SUBTF3_LIBCALL "_q_sub"
1329 #define FLOATUNSSITF2_LIBCALL "_q_utoq"
1330
1331 #define INIT_TARGET_OPTABS                                              \
1332   do {                                                                  \
1333     if (TARGET_HARD_FLOAT)                                              \
1334       {                                                                 \
1335         add_optab->handlers[(int) TFmode].libfunc                       \
1336           = init_one_libfunc (ADDTF3_LIBCALL);                          \
1337         sub_optab->handlers[(int) TFmode].libfunc                       \
1338           = init_one_libfunc (SUBTF3_LIBCALL);                          \
1339         neg_optab->handlers[(int) TFmode].libfunc                       \
1340           = init_one_libfunc (NEGTF2_LIBCALL);                          \
1341         smul_optab->handlers[(int) TFmode].libfunc                      \
1342           = init_one_libfunc (MULTF3_LIBCALL);                          \
1343         sdiv_optab->handlers[(int) TFmode].libfunc                      \
1344           = init_one_libfunc (DIVTF3_LIBCALL);                          \
1345         eqtf2_libfunc = init_one_libfunc (EQTF2_LIBCALL);               \
1346         netf2_libfunc = init_one_libfunc (NETF2_LIBCALL);               \
1347         gttf2_libfunc = init_one_libfunc (GTTF2_LIBCALL);               \
1348         getf2_libfunc = init_one_libfunc (GETF2_LIBCALL);               \
1349         lttf2_libfunc = init_one_libfunc (LTTF2_LIBCALL);               \
1350         letf2_libfunc = init_one_libfunc (LETF2_LIBCALL);               \
1351         trunctfsf2_libfunc = init_one_libfunc (TRUNCTFSF2_LIBCALL);     \
1352         trunctfdf2_libfunc = init_one_libfunc (TRUNCTFDF2_LIBCALL);     \
1353         extendsftf2_libfunc = init_one_libfunc (EXTENDSFTF2_LIBCALL);   \
1354         extenddftf2_libfunc = init_one_libfunc (EXTENDDFTF2_LIBCALL);   \
1355         floatsitf_libfunc = init_one_libfunc (FLOATSITF2_LIBCALL);      \
1356         fixtfsi_libfunc = init_one_libfunc (FIX_TRUNCTFSI2_LIBCALL);    \
1357         fixunstfsi_libfunc                                              \
1358           = init_one_libfunc (FIXUNS_TRUNCTFSI2_LIBCALL);               \
1359         if (TARGET_PPC_GPOPT || TARGET_POWER2)                          \
1360           sqrt_optab->handlers[(int) TFmode].libfunc                    \
1361             = init_one_libfunc (SQRTTF_LIBCALL);                        \
1362       }                                                                 \
1363   } while (0)
1364
1365 /* Select a format to encode pointers in exception handling data.  CODE
1366    is 0 for data, 1 for code labels, 2 for function pointers.  GLOBAL is
1367    true if the symbol may be affected by dynamic relocations.  */
1368 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL)                            \
1369   ((flag_pic || TARGET_RELOCATABLE)                                          \
1370    ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4) \
1371    : DW_EH_PE_absptr)
1372
1373 #define TARGET_ASM_EXCEPTION_SECTION readonly_data_section
1374
1375 #define DOUBLE_INT_ASM_OP "\t.quad\t"
1376
1377 /* Generate entries in .fixup for relocatable addresses.  */
1378 #define RELOCATABLE_NEEDS_FIXUP