| /* 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)) |