[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");

/* Enable HPUX ABI quirks.  */
#undef  TARGET_HPUX
#define TARGET_HPUX 1

/* 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("_INCLUDE_LONGLONG");		\
	builtin_define("_UINT128_T");			\
	if (c_dialect_cxx () || !flag_iso)		\
	  {						\
	    builtin_define("_HPUX_SOURCE");		\
	    builtin_define("__STDC_EXT__");		\
	  }						\
	if (TARGET_ILP32)				\
	  builtin_define("_ILP32");			\
} 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}%{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" },

#define MULTILIB_DEFAULTS { "milp32" }

/* 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 | MASK_INLINE_FLOAT_DIV_THR)

/* 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)

/* 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

/* HP-UX does not support thread-local storage.  */
#undef TARGET_HAVE_TLS
#define TARGET_HAVE_TLS false

/* ia64 HPUX has the float and long double forms of math functions.  */
#undef TARGET_C99_FUNCTIONS
#define TARGET_C99_FUNCTIONS  1

#define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs

#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)
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
02befdf4 ZW	28	/* Enable HPUX ABI quirks. */
	29	#undef TARGET_HPUX
	30	#define TARGET_HPUX 1
	31
57016b47	32	/* Target OS builtins. */
57016b47 SE	33	#define TARGET_OS_CPP_BUILTINS() \
	34	do { \
	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"); \
a5a8386f	42	builtin_define("_INCLUDE_LONGLONG"); \
57016b47	43	builtin_define("_UINT128_T"); \
04df6730	44	if (c_dialect_cxx () \|\| !flag_iso) \
57016b47 SE	45	{ \
	46	builtin_define("_HPUX_SOURCE"); \
	47	builtin_define("__STDC_EXT__"); \
	48	} \
24b7a8c9 RS	49	if (TARGET_ILP32) \
24b7a8c9 RS	50	builtin_define("_ILP32"); \
57016b47	51	} while (0)
7e5b9908	52
7e2055ec ZW	53	#undef CPP_SPEC
	54	#define CPP_SPEC \
	55	"%{mt\|pthread:-D_REENTRANT -D_THREAD_SAFE -D_POSIX_C_SOURCE=199506L}"
	56	/* aCC defines also -DRWSTD_MULTI_THREAD, -DRW_MULTI_THREAD. These
	57	affect only aCC's C++ library (Rogue Wave-derived) which we do not
	58	use, and they violate the user's name space. */
	59
5b8fcab6 DB	60	#undef ASM_EXTRA_SPEC
5b8fcab6 DB	61	#define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
7e5b9908 SE	62
	63	#undef ENDFILE_SPEC
	64
	65	#undef STARTFILE_SPEC
40ad65d0 SE	66	#define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"
40ad65d0 SE	67
7e5b9908	68	#undef LINK_SPEC
40ad65d0 SE	69	#define LINK_SPEC \
	70	"+Accept TypeMismatch \
	71	%{shared:-b} \
	72	%{!shared: \
	73	-u main \
	74	%{static:-noshared}}"
7e5b9908 SE	75
7e5b9908 SE	76	#undef LIB_SPEC
40ad65d0 SE	77	#define LIB_SPEC \
40ad65d0 SE	78	"%{!shared: \
7e2055ec	79	%{mt\|pthread:-lpthread} \
40ad65d0 SE	80	%{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
	81	%{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
	82	%{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
	83	%{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
	84	%{!symbolic:-lc}}"
	85
	86	#ifndef CROSS_COMPILE
	87	#undef LIBGCC_SPEC
	88	#define LIBGCC_SPEC \
e373cdb4	89	"%{shared-libgcc:%{!mlp64:-lgcc_s}%{mlp64:-lgcc_s_hpux64} -lgcc} \
40ad65d0 SE	90	%{!shared-libgcc:-lgcc}"
40ad65d0 SE	91	#endif
7e5b9908	92
6dd12198 SE	93	#undef SUBTARGET_SWITCHES
	94	#define SUBTARGET_SWITCHES \
	95	{ "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
	96	{ "lp64", -MASK_ILP32, "Generate LP64 code" },
	97
e373cdb4 ZW	98	#define MULTILIB_DEFAULTS { "milp32" }
e373cdb4 ZW	99
6dd12198 SE	100	/* A C expression whose value is zero if pointers that need to be extended
	101	from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
	102	greater then zero if they are zero-extended and less then zero if the
	103	ptr_extend instruction should be used. */
	104
	105	#define POINTERS_EXTEND_UNSIGNED -1
	106
7e5b9908 SE	107	#define JMP_BUF_SIZE (8 * 76)
7e5b9908 SE	108
7e5b9908	109	#undef TARGET_DEFAULT
b6b979d4 SE	110	#define TARGET_DEFAULT \
b6b979d4 SE	111	(MASK_DWARF2_ASM \| MASK_BIG_ENDIAN \| MASK_ILP32 \| MASK_INLINE_FLOAT_DIV_THR)
0d7839da SE	112
	113	/* This needs to be set to force structure arguments with a single
	114	field to be treated as structures and not as the type of their
	115	field. Without this a structure with a single char will be
	116	returned just like a char variable and that is wrong on HP-UX
3870df96 SE	117	IA64. */
3870df96 SE	118
02befdf4 ZW	119	#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) \
02befdf4 ZW	120	(TREE_CODE (TREE_TYPE (FIELD)) != REAL_TYPE \|\| MODE == TFmode)
0d7839da	121
68bb91b1 SE	122	/* ASM_OUTPUT_EXTERNAL_LIBCALL defaults to just a globalize_label call,
	123	but that doesn't put out the @function type information which causes
	124	shared library problems. */
	125
	126	#undef ASM_OUTPUT_EXTERNAL_LIBCALL
	127	#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
	128	do { \
	129	(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
	130	ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
	131	} while (0)
	132
0d7839da SE	133	#undef FUNCTION_ARG_PADDING
	134	#define FUNCTION_ARG_PADDING(MODE, TYPE) \
	135	ia64_hpux_function_arg_padding ((MODE), (TYPE))
	136
	137	#undef PAD_VARARGS_DOWN
	138	#define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
34c1864f	139
c58b209a NB	140	#define REGISTER_TARGET_PRAGMAS() \
c58b209a NB	141	c_register_pragma (0, "builtin", ia64_hpux_handle_builtin_pragma)
686f3bf0 SE	142
	143	/* Tell ia64.c that we are using the HP linker and we should delay output of
	144	function extern declarations so that we don't output them for functions
	145	which are never used (and may not be defined). */
	146
	147	#undef TARGET_HPUX_LD
	148	#define TARGET_HPUX_LD 1
	149
7e2055ec ZW	150	/* The HPUX dynamic linker objects to weak symbols with no
	151	definitions, so do not use them in gthr-posix.h. */
	152	#define GTHREAD_USE_WEAK 0
	153
686f3bf0 SE	154	/* Put out the needed function declarations at the end. */
686f3bf0 SE	155
a5fe455b	156	#define TARGET_ASM_FILE_END ia64_hpux_file_end
b64ddb88 SE	157
	158	#undef CTORS_SECTION_ASM_OP
	159	#define CTORS_SECTION_ASM_OP "\t.section\t.init_array,\t\"aw\",\"init_array\""
	160
	161	#undef DTORS_SECTION_ASM_OP
	162	#define DTORS_SECTION_ASM_OP "\t.section\t.fini_array,\t\"aw\",\"fini_array\""
	163
74487c57 MM	164	/* The init_array/fini_array technique does not permit the use of
	165	initialization priorities. */
	166	#define SUPPORTS_INIT_PRIORITY 0
	167
b64ddb88 SE	168	#undef READONLY_DATA_SECTION_ASM_OP
	169	#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
	170
	171	#undef DATA_SECTION_ASM_OP
	172	#define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
	173
	174	#undef SDATA_SECTION_ASM_OP
	175	#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
	176
	177	#undef BSS_SECTION_ASM_OP
	178	#define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
	179
	180	#undef SBSS_SECTION_ASM_OP
	181	#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
	182
	183	#undef TEXT_SECTION_ASM_OP
	184	#define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""
6ca86a1a RH	185
	186	/* It is illegal to have relocations in shared segments on HPUX.
	187	Pretend flag_pic is always set. */
	188	#undef TARGET_ASM_SELECT_SECTION
	189	#define TARGET_ASM_SELECT_SECTION ia64_rwreloc_select_section
	190	#undef TARGET_ASM_UNIQUE_SECTION
	191	#define TARGET_ASM_UNIQUE_SECTION ia64_rwreloc_unique_section
	192	#undef TARGET_ASM_SELECT_RTX_SECTION
	193	#define TARGET_ASM_SELECT_RTX_SECTION ia64_rwreloc_select_rtx_section
1e1bd14e RH	194	#undef TARGET_SECTION_TYPE_FLAGS
1e1bd14e RH	195	#define TARGET_SECTION_TYPE_FLAGS ia64_rwreloc_section_type_flags
9959901c	196
c743369c MM	197	/* HP-UX does not support thread-local storage. */
	198	#undef TARGET_HAVE_TLS
	199	#define TARGET_HAVE_TLS false
	200
9959901c RS	201	/* ia64 HPUX has the float and long double forms of math functions. */
	202	#undef TARGET_C99_FUNCTIONS
	203	#define TARGET_C99_FUNCTIONS 1
	204
c15c90bb ZW	205	#define TARGET_INIT_LIBFUNCS ia64_hpux_init_libfuncs
	206
	207	#define FLOAT_LIB_COMPARE_RETURNS_BOOL(MODE, COMPARISON) ((MODE) == TFmode)