123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/* Definitions of target machine GNU compiler. IA-64 version.
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Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
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Contributed by Steve Ellcey <sje@cup.hp.com> and
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Reva Cuthbertson <reva@cup.hp.com>
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This file is part of GNU CC.
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GNU CC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GNU CC; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This macro is a C statement to print on `stderr' a string describing the
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particular machine description choice. */
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#define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
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#undef CPP_PREDEFINES
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#define CPP_PREDEFINES "\
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-D__IA64__ -D__hpux -D__hpux__ -Dhpux -Dunix \
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-D__BIG_ENDIAN__ -D_LONGLONG \
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-Asystem=hpux -Asystem=posix -Asystem=unix \
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-D_UINT128_T"
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/* -D__fpreg=long double is needed to compensate for the lack of __fpreg
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which is a primitive type in HP C but does not exist in GNU C. Same
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for __float80 and __float128. These types appear in HP-UX header
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files and so must have some definition. */
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#undef CPP_SPEC
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#define CPP_SPEC "\
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%{mcpu=itanium:-D__itanium__} \
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%{mlp64:-D__LP64__ -D_LP64 -D__LONG_MAX__=9223372036854775807L} \
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%{!ansi:%{!std=c*:%{!std=i*: -D_HPUX_SOURCE -D__STDC_EXT__}}} \
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-D__fpreg=long\\ double \
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-D__float80=long\\ double \
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-D__float128=long\\ double"
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#undef ASM_EXTRA_SPEC
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#define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
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#undef ENDFILE_SPEC
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#undef STARTFILE_SPEC
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#ifdef CROSS_COMPILE
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#define STARTFILE_SPEC "%{!shared:crt0%O%s}"
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#else
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#define STARTFILE_SPEC "/usr/ccs/lib/hpux64/crt0%O"
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#endif
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#undef LINK_SPEC
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#define LINK_SPEC "\
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+Accept TypeMismatch \
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%{shared:-b} \
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%{!shared: \
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-u main \
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%{!static: \
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%{rdynamic:-export-dynamic}} \
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%{static:-static}}"
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#undef LIB_SPEC
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#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
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#undef SUBTARGET_SWITCHES
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#define SUBTARGET_SWITCHES \
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{ "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
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{ "lp64", -MASK_ILP32, "Generate LP64 code" },
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/* A C expression whose value is zero if pointers that need to be extended
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from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
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greater then zero if they are zero-extended and less then zero if the
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ptr_extend instruction should be used. */
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#define POINTERS_EXTEND_UNSIGNED -1
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#define JMP_BUF_SIZE (8 * 76)
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#undef CONST_SECTION_ASM_OP
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#define CONST_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
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#undef BITS_BIG_ENDIAN
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#define BITS_BIG_ENDIAN 1
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#undef TARGET_DEFAULT
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#define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_BIG_ENDIAN)
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/* This needs to be set to force structure arguments with a single
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field to be treated as structures and not as the type of their
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field. Without this a structure with a single char will be
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returned just like a char variable and that is wrong on HP-UX
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IA64. TARGET_STRUCT_ARG_REG_LITTLE_ENDIAN triggers the special
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structure handling, this macro simply ensures that single field
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structures are always treated like structures. */
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#define MEMBER_TYPE_FORCES_BLK(FIELD) 1
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/* Override the setting of FUNCTION_ARG_REG_LITTLE_ENDIAN in
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defaults.h. Setting this to true means that we are not passing
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structures in registers in the "normal" big-endian way. See
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See section 8.5 of the "Itanium Software Conventions and Runtime
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Architecture", specifically Table 8-1 and the explanation of Byte 0
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alignment and LSB alignment and a description of how structures
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are passed. */
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#define FUNCTION_ARG_REG_LITTLE_ENDIAN 1
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#undef FUNCTION_ARG_PADDING
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#define FUNCTION_ARG_PADDING(MODE, TYPE) \
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ia64_hpux_function_arg_padding ((MODE), (TYPE))
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#undef PAD_VARARGS_DOWN
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#define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
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