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/* Definitions of target machine GNU compiler. IA-64 version.
Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
Contributed by Steve Ellcey <sje@cup.hp.com> and
Reva Cuthbertson <reva@cup.hp.com>
This file is part of GNU CC.
GNU CC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GNU CC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU CC; see the file COPYING. If not, write to
the Free Software Foundation, 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
/* This macro is a C statement to print on `stderr' a string describing the
particular machine description choice. */
#define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
#undef CPP_PREDEFINES
#define CPP_PREDEFINES "\
-D__IA64__ -D__ia64 -D__ia64__ -D__hpux -D__hpux__ -Dhpux -Dunix \
-D__BIG_ENDIAN__ -D_LONGLONG -D__ELF__ \
-Asystem=hpux -Asystem=posix -Asystem=unix -Acpu=ia64 -Amachine=ia64 \
-D_UINT128_T"
/* -D__fpreg=long double is needed to compensate for the lack of __fpreg
which is a primitive type in HP C but does not exist in GNU C. Same
for __float80 and __float128. These types appear in HP-UX header
files and so must have some definition. */
#undef CPP_SPEC
#define CPP_SPEC "\
%{mcpu=itanium:-D__itanium__} \
%{mlp64:-D__LP64__ -D__LONG_MAX__=9223372036854775807L} \
%{!ansi:%{!std=c*:%{!std=i*: -D_HPUX_SOURCE -D__STDC_EXT__}}} \
-D__fpreg=long\\ double \
-D__float80=long\\ double \
-D__float128=long\\ double"
#undef ASM_SPEC
#define ASM_SPEC "-x %{mconstant-gp} %{mauto-pic} \
%{milp32:-milp32} %{mlp64:-mlp64}"
#undef ENDFILE_SPEC
#undef STARTFILE_SPEC
#ifdef CROSS_COMPILE
#define STARTFILE_SPEC "%{!shared:crt0%O%s}"
#else
#define STARTFILE_SPEC "/usr/ccs/lib/hpux64/crt0%O"
#endif
#undef LINK_SPEC
#define LINK_SPEC "\
+Accept TypeMismatch \
%{shared:-b} \
%{!shared: \
-u main \
%{!static: \
%{rdynamic:-export-dynamic}} \
%{static:-static}}"
#undef LIB_SPEC
#define LIB_SPEC "%{!shared:%{!symbolic:-lc}}"
#undef SUBTARGET_SWITCHES
#define SUBTARGET_SWITCHES \
{ "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
{ "lp64", -MASK_ILP32, "Generate LP64 code" },
/* A C expression whose value is zero if pointers that need to be extended
from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
greater then zero if they are zero-extended and less then zero if the
ptr_extend instruction should be used. */
#define POINTERS_EXTEND_UNSIGNED -1
#define DONT_USE_BUILTIN_SETJMP
#define JMP_BUF_SIZE (8 * 76)
#undef CONST_SECTION_ASM_OP
#define CONST_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
#undef BITS_BIG_ENDIAN
#define BITS_BIG_ENDIAN 1
#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_BIG_ENDIAN)
/* This needs to be set to force structure arguments with a single
field to be treated as structures and not as the type of their
field. Without this a structure with a single char will be
returned just like a char variable and that is wrong on HP-UX
IA64. TARGET_STRUCT_ARG_REG_LITTLE_ENDIAN triggers the special
structure handling, this macro simply ensures that single field
structures are always treated like structures. */
#define MEMBER_TYPE_FORCES_BLK(FIELD) 1
/* Override the setting of FUNCTION_ARG_REG_LITTLE_ENDIAN in
defaults.h. Setting this to true means that we are not passing
structures in registers in the "normal" big-endian way. See
See section 8.5 of the "Itanium Software Conventions and Runtime
Architecture", specifically Table 8-1 and the explanation of Byte 0
alignment and LSB alignment and a description of how structures
are passed. */
#define FUNCTION_ARG_REG_LITTLE_ENDIAN 1
#undef FUNCTION_ARG_PADDING
#define FUNCTION_ARG_PADDING(MODE, TYPE) \
ia64_hpux_function_arg_padding ((MODE), (TYPE))
#undef PAD_VARARGS_DOWN
#define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
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