1 /* Definitions of target machine GNU compiler. IA-64 version.
2 Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
3 Contributed by Steve Ellcey <sje@cup.hp.com> and
4 Reva Cuthbertson <reva@cup.hp.com>
6 This file is part of GCC.
8 GCC 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)
13 GCC 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.
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
20 the Free Software Foundation, 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* This macro is a C statement to print on `stderr' a string describing the
24 particular machine description choice. */
26 #define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
28 /* Enable HPUX ABI quirks. */
32 /* Target OS builtins. */
33 #define TARGET_OS_CPP_BUILTINS() \
35 builtin_assert("system=hpux"); \
36 builtin_assert("system=posix"); \
37 builtin_assert("system=unix"); \
38 builtin_define_std("hpux"); \
39 builtin_define_std("unix"); \
40 builtin_define("__IA64__"); \
41 builtin_define("_LONGLONG"); \
42 builtin_define("_INCLUDE_LONGLONG"); \
43 builtin_define("_UINT128_T"); \
44 if (c_dialect_cxx () || !flag_iso) \
46 builtin_define("_HPUX_SOURCE"); \
47 builtin_define("__STDC_EXT__"); \
48 builtin_define("__STDCPP__"); \
51 builtin_define("_ILP32"); \
56 "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
57 /* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD. These
58 affect only aCC's C++ library (Rogue Wave-derived) which we do not
59 use, and they violate the user's name space. */
62 #define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
67 #define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"
71 "+Accept TypeMismatch \
80 %{mt|pthread:-lpthread} \
81 %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
82 %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
83 %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
84 %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
87 #undef SUBTARGET_SWITCHES
88 #define SUBTARGET_SWITCHES \
89 { "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
90 { "lp64", -MASK_ILP32, "Generate LP64 code" },
92 #define MULTILIB_DEFAULTS { "milp32" }
94 /* A C expression whose value is zero if pointers that need to be extended
95 from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
96 greater then zero if they are zero-extended and less then zero if the
97 ptr_extend instruction should be used. */
99 #define POINTERS_EXTEND_UNSIGNED -1
101 #define JMP_BUF_SIZE (8 * 76)
103 #undef TARGET_DEFAULT
104 #define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32)
106 /* This needs to be set to force structure arguments with a single
107 integer field to be treated as structures and not as the type of
108 their field. Without this a structure with a single char will be
109 returned just like a char variable, instead of being returned at the
110 top of the register as specified for big-endian IA64. */
112 #define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) \
113 (!FLOAT_MODE_P (MODE) || (MODE) == TFmode)
115 /* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
116 but that doesn't put out the @function type information which causes
117 shared library problems. */
119 #undef ASM_OUTPUT_EXTERNAL_LIBCALL
120 #define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
122 (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
123 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
126 #undef FUNCTION_ARG_PADDING
127 #define FUNCTION_ARG_PADDING(MODE, TYPE) \
128 ia64_hpux_function_arg_padding ((MODE), (TYPE))
130 #undef PAD_VARARGS_DOWN
131 #define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
133 #define REGISTER_TARGET_PRAGMAS() \
134 c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
136 /* Tell ia64.c that we are using the HP linker and we should delay output of
137 function extern declarations so that we don't output them for functions
138 which are never used (and may not be defined). */
140 #undef TARGET_HPUX_LD
141 #define TARGET_HPUX_LD 1
143 /* The HPUX dynamic linker objects to weak symbols with no
144 definitions, so do not use them in gthr-posix.h. */
145 #define GTHREAD_USE_WEAK 0
147 /* Put out the needed function declarations at the end. */
149 #define TARGET_ASM_FILE_END ia64_hpux_file_end
151 #undef CTORS_SECTION_ASM_OP
152 #define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\t\"aw\",\"init_array\""
154 #undef DTORS_SECTION_ASM_OP
155 #define DTORS_SECTION_ASM_OP "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
157 /* The init_array/fini_array technique does not permit the use of
158 initialization priorities. */
159 #define SUPPORTS_INIT_PRIORITY 0
161 #undef READONLY_DATA_SECTION_ASM_OP
162 #define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
164 #undef DATA_SECTION_ASM_OP
165 #define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
167 #undef SDATA_SECTION_ASM_OP
168 #define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
170 #undef BSS_SECTION_ASM_OP
171 #define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
173 #undef SBSS_SECTION_ASM_OP
174 #define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
176 #undef TEXT_SECTION_ASM_OP
177 #define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
179 /* It is illegal to have relocations in shared segments on HPUX.
180 Pretend flag_pic is always set. */
181 #undef TARGET_ASM_SELECT_SECTION
182 #define TARGET_ASM_SELECT_SECTION ia64_rwreloc_select_section
183 #undef TARGET_ASM_UNIQUE_SECTION
184 #define TARGET_ASM_UNIQUE_SECTION ia64_rwreloc_unique_section
185 #undef TARGET_ASM_SELECT_RTX_SECTION
186 #define TARGET_ASM_SELECT_RTX_SECTION ia64_rwreloc_select_rtx_section
187 #undef TARGET_SECTION_TYPE_FLAGS
188 #define TARGET_SECTION_TYPE_FLAGS ia64_rwreloc_section_type_flags
190 /* ia64 HPUX has the float and long double forms of math functions. */
191 #undef TARGET_C99_FUNCTIONS
192 #define TARGET_C99_FUNCTIONS 1
194 #define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs
196 #define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)