[thirdparty/gcc.git] / gcc / config / ia64 / hpux.h

/* Definitions of target machine GNU compiler.  IA-64 version.
   Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
   Contributed by Steve Ellcey <sje@cup.hp.com> and
                  Reva Cuthbertson <reva@cup.hp.com>

This file is part of GCC.

GCC 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.

GCC 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 GCC; 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");

/* Target OS builtins.  */
#define TARGET_OS_CPP_BUILTINS()			\
do {							\
	builtin_assert("system=hpux");			\
	builtin_assert("system=posix");			\
	builtin_assert("system=unix");			\
	builtin_define_std("hpux");			\
	builtin_define_std("unix");			\
	builtin_define("__IA64__");			\
	builtin_define("_LONGLONG");			\
	builtin_define("_UINT128_T");			\
	if (c_dialect_cxx () || !flag_iso)		\
	  {						\
	    builtin_define("_HPUX_SOURCE");		\
	    builtin_define("__STDC_EXT__");		\
	  }						\
} while (0)

#undef CPP_SPEC
#define CPP_SPEC \
  "%{mt|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
/* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD.  These
   affect only aCC's C++ library (Rogue Wave-derived) which we do not
   use, and they violate the user's name space.  */

#undef  ASM_EXTRA_SPEC
#define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"

#undef ENDFILE_SPEC

#undef STARTFILE_SPEC
#define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"

#undef LINK_SPEC
#define LINK_SPEC \
  "+Accept TypeMismatch \
   %{shared:-b} \
   %{!shared: \
     -u main \
     %{static:-noshared}}"

#undef  LIB_SPEC
#define LIB_SPEC \
  "%{!shared: \
     %{mt|pthread:-lpthread} \
     %{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
	 %{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
     %{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
	  %{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
     %{!symbolic:-lc}}"

#ifndef CROSS_COMPILE
#undef LIBGCC_SPEC
#define LIBGCC_SPEC \
  "%{shared-libgcc:%{!mlp64:-lgcc_s_hpux32}%{mlp64:-lgcc_s_hpux64} -lgcc} \
   %{!shared-libgcc:-lgcc}"
#endif

#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 JMP_BUF_SIZE  (8 * 76)

#undef TARGET_DEFAULT
#define TARGET_DEFAULT (MASK_DWARF2_ASM | MASK_BIG_ENDIAN | MASK_ILP32)

/* 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.  */

#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) (TREE_CODE (TREE_TYPE (FIELD)) != REAL_TYPE || (MODE == TFmode && !INTEL_EXTENDED_IEEE_FORMAT))

/* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
   but that doesn't put out the @function type information which causes
   shared library problems.  */

#undef ASM_OUTPUT_EXTERNAL_LIBCALL
#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN)			\
do {								\
  (*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0));	\
  ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function");	\
} while (0)

#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))

#define REGISTER_TARGET_PRAGMAS() \
  c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)

/* Tell ia64.c that we are using the HP linker and we should delay output of
   function extern declarations so that we don't output them for functions
   which are never used (and may not be defined).  */

#undef TARGET_HPUX_LD
#define TARGET_HPUX_LD	1

/* The HPUX dynamic linker objects to weak symbols with no
   definitions, so do not use them in gthr-posix.h.  */
#define GTHREAD_USE_WEAK 0

/* Put out the needed function declarations at the end.  */

#define TARGET_ASM_FILE_END ia64_hpux_file_end

#undef CTORS_SECTION_ASM_OP
#define CTORS_SECTION_ASM_OP  "\t.section\t.init_array,\t\"aw\",\"init_array\""

#undef DTORS_SECTION_ASM_OP
#define DTORS_SECTION_ASM_OP  "\t.section\t.fini_array,\t\"aw\",\"fini_array\""

/* The init_array/fini_array technique does not permit the use of
   initialization priorities.  */
#define SUPPORTS_INIT_PRIORITY 0

#undef READONLY_DATA_SECTION_ASM_OP
#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""

#undef DATA_SECTION_ASM_OP
#define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""

#undef SDATA_SECTION_ASM_OP
#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""

#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""

#undef SBSS_SECTION_ASM_OP
#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""

#undef TEXT_SECTION_ASM_OP
#define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""

/* It is illegal to have relocations in shared segments on HPUX.
   Pretend flag_pic is always set.  */
#undef  TARGET_ASM_SELECT_SECTION
#define TARGET_ASM_SELECT_SECTION  ia64_rwreloc_select_section
#undef  TARGET_ASM_UNIQUE_SECTION
#define TARGET_ASM_UNIQUE_SECTION  ia64_rwreloc_unique_section
#undef  TARGET_ASM_SELECT_RTX_SECTION
#define TARGET_ASM_SELECT_RTX_SECTION  ia64_rwreloc_select_rtx_section
#undef  TARGET_SECTION_TYPE_FLAGS
#define TARGET_SECTION_TYPE_FLAGS  ia64_rwreloc_section_type_flags

/* ia64 HPUX has the float and long double forms of math functions.  */
#undef TARGET_C99_FUNCTIONS
#define TARGET_C99_FUNCTIONS  1
Commit	Line	Data
7e5b9908	1	/* Definitions of target machine GNU compiler. IA-64 version.
c58b209a	2	Copyright (C) 1999, 2000, 2001, 2002, 2003 Free Software Foundation, Inc.
7e5b9908 SE	3	Contributed by Steve Ellcey <sje@cup.hp.com> and
	4	Reva Cuthbertson <reva@cup.hp.com>
	5
3bed2930	6	This file is part of GCC.
7e5b9908	7
3bed2930	8	GCC is free software; you can redistribute it and/or modify
7e5b9908 SE	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)
	11	any later version.
	12
3bed2930	13	GCC is distributed in the hope that it will be useful,
7e5b9908 SE	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.
	17
	18	You should have received a copy of the GNU General Public License
3bed2930	19	along with GCC; see the file COPYING. If not, write to
7e5b9908 SE	20	the Free Software Foundation, 59 Temple Place - Suite 330,
	21	Boston, MA 02111-1307, USA. */
	22
243a7070 DB	23	/* This macro is a C statement to print on `stderr' a string describing the
	24	particular machine description choice. */
	25
	26	#define TARGET_VERSION fprintf (stderr, " (IA-64) HP-UX");
	27
57016b47	28	/* Target OS builtins. */
57016b47 SE	29	#define TARGET_OS_CPP_BUILTINS() \
	30	do { \
	31	builtin_assert("system=hpux"); \
	32	builtin_assert("system=posix"); \
	33	builtin_assert("system=unix"); \
	34	builtin_define_std("hpux"); \
	35	builtin_define_std("unix"); \
	36	builtin_define("__IA64__"); \
	37	builtin_define("_LONGLONG"); \
	38	builtin_define("_UINT128_T"); \
04df6730	39	if (c_dialect_cxx () \|\| !flag_iso) \
57016b47 SE	40	{ \
	41	builtin_define("_HPUX_SOURCE"); \
	42	builtin_define("__STDC_EXT__"); \
	43	} \
	44	} while (0)
7e5b9908	45
7e2055ec ZW	46	#undef CPP_SPEC
	47	#define CPP_SPEC \
	48	"%{mt\|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
	49	/* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD. These
	50	affect only aCC's C++ library (Rogue Wave-derived) which we do not
	51	use, and they violate the user's name space. */
	52
5b8fcab6 DB	53	#undef ASM_EXTRA_SPEC
5b8fcab6 DB	54	#define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
7e5b9908 SE	55
	56	#undef ENDFILE_SPEC
	57
	58	#undef STARTFILE_SPEC
40ad65d0 SE	59	#define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"
40ad65d0 SE	60
7e5b9908	61	#undef LINK_SPEC
40ad65d0 SE	62	#define LINK_SPEC \
	63	"+Accept TypeMismatch \
	64	%{shared:-b} \
	65	%{!shared: \
	66	-u main \
	67	%{static:-noshared}}"
7e5b9908 SE	68
7e5b9908 SE	69	#undef LIB_SPEC
40ad65d0 SE	70	#define LIB_SPEC \
40ad65d0 SE	71	"%{!shared: \
7e2055ec	72	%{mt\|pthread:-lpthread} \
40ad65d0 SE	73	%{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
	74	%{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
	75	%{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
	76	%{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
	77	%{!symbolic:-lc}}"
	78
	79	#ifndef CROSS_COMPILE
	80	#undef LIBGCC_SPEC
	81	#define LIBGCC_SPEC \
	82	"%{shared-libgcc:%{!mlp64:-lgcc_s_hpux32}%{mlp64:-lgcc_s_hpux64} -lgcc} \
	83	%{!shared-libgcc:-lgcc}"
	84	#endif
7e5b9908	85
6dd12198 SE	86	#undef SUBTARGET_SWITCHES
	87	#define SUBTARGET_SWITCHES \
	88	{ "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
	89	{ "lp64", -MASK_ILP32, "Generate LP64 code" },
	90
	91	/* A C expression whose value is zero if pointers that need to be extended
	92	from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
	93	greater then zero if they are zero-extended and less then zero if the
	94	ptr_extend instruction should be used. */
	95
	96	#define POINTERS_EXTEND_UNSIGNED -1
	97
7e5b9908 SE	98	#define JMP_BUF_SIZE (8 * 76)
7e5b9908 SE	99
7e5b9908	100	#undef TARGET_DEFAULT
5429802d	101	#define TARGET_DEFAULT (MASK_DWARF2_ASM \| MASK_BIG_ENDIAN \| MASK_ILP32)
0d7839da SE	102
	103	/* This needs to be set to force structure arguments with a single
	104	field to be treated as structures and not as the type of their
	105	field. Without this a structure with a single char will be
	106	returned just like a char variable and that is wrong on HP-UX
3870df96 SE	107	IA64. */
	108
	109	#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) (TREE_CODE (TREE_TYPE (FIELD)) != REAL_TYPE \|\| (MODE == TFmode && !INTEL_EXTENDED_IEEE_FORMAT))
0d7839da	110
68bb91b1 SE	111	/* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
	112	but that doesn't put out the @function type information which causes
	113	shared library problems. */
	114
	115	#undef ASM_OUTPUT_EXTERNAL_LIBCALL
	116	#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
	117	do { \
	118	(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
	119	ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
	120	} while (0)
	121
0d7839da SE	122	#undef FUNCTION_ARG_PADDING
	123	#define FUNCTION_ARG_PADDING(MODE, TYPE) \
	124	ia64_hpux_function_arg_padding ((MODE), (TYPE))
	125
	126	#undef PAD_VARARGS_DOWN
	127	#define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
34c1864f	128
c58b209a NB	129	#define REGISTER_TARGET_PRAGMAS() \
c58b209a NB	130	c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
686f3bf0 SE	131
	132	/* Tell ia64.c that we are using the HP linker and we should delay output of
	133	function extern declarations so that we don't output them for functions
	134	which are never used (and may not be defined). */
	135
	136	#undef TARGET_HPUX_LD
	137	#define TARGET_HPUX_LD 1
	138
7e2055ec ZW	139	/* The HPUX dynamic linker objects to weak symbols with no
	140	definitions, so do not use them in gthr-posix.h. */
	141	#define GTHREAD_USE_WEAK 0
	142
686f3bf0 SE	143	/* Put out the needed function declarations at the end. */
686f3bf0 SE	144
a5fe455b	145	#define TARGET_ASM_FILE_END ia64_hpux_file_end
b64ddb88 SE	146
	147	#undef CTORS_SECTION_ASM_OP
	148	#define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\t\"aw\",\"init_array\""
	149
	150	#undef DTORS_SECTION_ASM_OP
	151	#define DTORS_SECTION_ASM_OP "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
	152
74487c57 MM	153	/* The init_array/fini_array technique does not permit the use of
	154	initialization priorities. */
	155	#define SUPPORTS_INIT_PRIORITY 0
	156
b64ddb88 SE	157	#undef READONLY_DATA_SECTION_ASM_OP
	158	#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
	159
	160	#undef DATA_SECTION_ASM_OP
	161	#define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
	162
	163	#undef SDATA_SECTION_ASM_OP
	164	#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
	165
	166	#undef BSS_SECTION_ASM_OP
	167	#define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
	168
	169	#undef SBSS_SECTION_ASM_OP
	170	#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
	171
	172	#undef TEXT_SECTION_ASM_OP
	173	#define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
6ca86a1a RH	174
	175	/* It is illegal to have relocations in shared segments on HPUX.
	176	Pretend flag_pic is always set. */
	177	#undef TARGET_ASM_SELECT_SECTION
	178	#define TARGET_ASM_SELECT_SECTION ia64_rwreloc_select_section
	179	#undef TARGET_ASM_UNIQUE_SECTION
	180	#define TARGET_ASM_UNIQUE_SECTION ia64_rwreloc_unique_section
	181	#undef TARGET_ASM_SELECT_RTX_SECTION
	182	#define TARGET_ASM_SELECT_RTX_SECTION ia64_rwreloc_select_rtx_section
1e1bd14e RH	183	#undef TARGET_SECTION_TYPE_FLAGS
1e1bd14e RH	184	#define TARGET_SECTION_TYPE_FLAGS ia64_rwreloc_section_type_flags
9959901c RS	185
	186	/* ia64 HPUX has the float and long double forms of math functions. */
	187	#undef TARGET_C99_FUNCTIONS
	188	#define TARGET_C99_FUNCTIONS 1
	189