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

/* Definitions of target machine GNU compiler.  IA-64 version.
   Copyright (C) 1999, 2000, 2001, 2002 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");

/* Target OS builtins.  */
/* -D__fpreg=long double is needed to compensate for
   the lack of __fpreg which is a primative type in
   HP C but does not exist in GNU C.  */
#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");			\
	builtin_define("__fpreg=long double");		\
	builtin_define("__float80=long double");	\
	builtin_define("__float128=long double");	\
	if (c_language == clk_cplusplus || !flag_iso)	\
	  {						\
	    builtin_define("_HPUX_SOURCE");		\
	    builtin_define("__STDC_EXT__");		\
	  }						\
} while (0)

#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}}"

#ifndef CROSS_COMPILE
#define STARTFILE_PREFIX_SPEC \
  "%{mlp64: /usr/ccs/lib/hpux64/} \
   %{!mlp64: /usr/ccs/lib/hpux32/}"
#endif

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

#undef  LIB_SPEC
#define LIB_SPEC \
  "%{!shared: \
     %{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(PFILE) \
  cpp_register_pragma (PFILE, 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

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

#define ASM_FILE_END(STREAM) ia64_hpux_asm_file_end(STREAM)

#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\""

#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\""
Commit	Line	Data
7e5b9908	1	/* Definitions of target machine GNU compiler. IA-64 version.
d48bc59a	2	Copyright (C) 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
7e5b9908 SE	3	Contributed by Steve Ellcey <sje@cup.hp.com> and
	4	Reva Cuthbertson <reva@cup.hp.com>
	5
	6	This file is part of GNU CC.
	7
	8	GNU CC 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)
	11	any later version.
	12
	13	GNU CC 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.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with GNU CC; see the file COPYING. If not, write to
	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 SE	28	/* Target OS builtins. */
	29	/* -D__fpreg=long double is needed to compensate for
	30	the lack of __fpreg which is a primative type in
	31	HP C but does not exist in GNU C. */
	32	#define TARGET_OS_CPP_BUILTINS() \
	33	do { \
	34	builtin_assert("system=hpux"); \
	35	builtin_assert("system=posix"); \
	36	builtin_assert("system=unix"); \
	37	builtin_define_std("hpux"); \
	38	builtin_define_std("unix"); \
	39	builtin_define("__IA64__"); \
	40	builtin_define("_LONGLONG"); \
	41	builtin_define("_UINT128_T"); \
	42	builtin_define("__fpreg=long double"); \
	43	builtin_define("__float80=long double"); \
	44	builtin_define("__float128=long double"); \
	45	if (c_language == clk_cplusplus \|\| !flag_iso) \
	46	{ \
	47	builtin_define("_HPUX_SOURCE"); \
	48	builtin_define("__STDC_EXT__"); \
	49	} \
	50	} while (0)
7e5b9908	51
5b8fcab6 DB	52	#undef ASM_EXTRA_SPEC
5b8fcab6 DB	53	#define ASM_EXTRA_SPEC "%{milp32:-milp32} %{mlp64:-mlp64}"
7e5b9908 SE	54
	55	#undef ENDFILE_SPEC
	56
	57	#undef STARTFILE_SPEC
40ad65d0 SE	58	#define STARTFILE_SPEC "%{!shared:%{static:crt0%O%s}}"
	59
	60	#ifndef CROSS_COMPILE
	61	#define STARTFILE_PREFIX_SPEC \
	62	"%{mlp64: /usr/ccs/lib/hpux64/} \
	63	%{!mlp64: /usr/ccs/lib/hpux32/}"
7e5b9908 SE	64	#endif
	65
	66	#undef LINK_SPEC
40ad65d0 SE	67	#define LINK_SPEC \
	68	"+Accept TypeMismatch \
	69	%{shared:-b} \
	70	%{!shared: \
	71	-u main \
	72	%{static:-noshared}}"
7e5b9908 SE	73
7e5b9908 SE	74	#undef LIB_SPEC
40ad65d0 SE	75	#define LIB_SPEC \
	76	"%{!shared: \
	77	%{p:%{!mlp64:-L/usr/lib/hpux32/libp} \
	78	%{mlp64:-L/usr/lib/hpux64/libp} -lprof} \
	79	%{pg:%{!mlp64:-L/usr/lib/hpux32/libp} \
	80	%{mlp64:-L/usr/lib/hpux64/libp} -lgprof} \
	81	%{!symbolic:-lc}}"
	82
	83	#ifndef CROSS_COMPILE
	84	#undef LIBGCC_SPEC
	85	#define LIBGCC_SPEC \
	86	"%{shared-libgcc:%{!mlp64:-lgcc_s_hpux32}%{mlp64:-lgcc_s_hpux64} -lgcc} \
	87	%{!shared-libgcc:-lgcc}"
	88	#endif
7e5b9908	89
6dd12198 SE	90	#undef SUBTARGET_SWITCHES
	91	#define SUBTARGET_SWITCHES \
	92	{ "ilp32", MASK_ILP32, "Generate ILP32 code" }, \
	93	{ "lp64", -MASK_ILP32, "Generate LP64 code" },
	94
	95	/* A C expression whose value is zero if pointers that need to be extended
	96	from being `POINTER_SIZE' bits wide to `Pmode' are sign-extended and
	97	greater then zero if they are zero-extended and less then zero if the
	98	ptr_extend instruction should be used. */
	99
	100	#define POINTERS_EXTEND_UNSIGNED -1
	101
7e5b9908 SE	102	#define JMP_BUF_SIZE (8 * 76)
7e5b9908 SE	103
7e5b9908	104	#undef TARGET_DEFAULT
5429802d	105	#define TARGET_DEFAULT (MASK_DWARF2_ASM \| MASK_BIG_ENDIAN \| MASK_ILP32)
0d7839da SE	106
	107	/* This needs to be set to force structure arguments with a single
	108	field to be treated as structures and not as the type of their
	109	field. Without this a structure with a single char will be
	110	returned just like a char variable and that is wrong on HP-UX
3870df96 SE	111	IA64. */
	112
	113	#define MEMBER_TYPE_FORCES_BLK(FIELD, MODE) (TREE_CODE (TREE_TYPE (FIELD)) != REAL_TYPE \|\| (MODE == TFmode && !INTEL_EXTENDED_IEEE_FORMAT))
0d7839da	114
68bb91b1 SE	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. */
	118
	119	#undef ASM_OUTPUT_EXTERNAL_LIBCALL
	120	#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
	121	do { \
	122	(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0)); \
	123	ASM_OUTPUT_TYPE_DIRECTIVE (FILE, XSTR (FUN, 0), "function"); \
	124	} while (0)
	125
0d7839da SE	126	#undef FUNCTION_ARG_PADDING
	127	#define FUNCTION_ARG_PADDING(MODE, TYPE) \
	128	ia64_hpux_function_arg_padding ((MODE), (TYPE))
	129
	130	#undef PAD_VARARGS_DOWN
	131	#define PAD_VARARGS_DOWN (!AGGREGATE_TYPE_P (type))
34c1864f SE	132
	133	#define REGISTER_TARGET_PRAGMAS(PFILE) \
	134	cpp_register_pragma (PFILE, 0, "builtin", ia64_hpux_handle_builtin_pragma)
686f3bf0 SE	135
	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). */
	139
	140	#undef TARGET_HPUX_LD
	141	#define TARGET_HPUX_LD 1
	142
	143	/* Put out the needed function declarations at the end. */
	144
	145	#define ASM_FILE_END(STREAM) ia64_hpux_asm_file_end(STREAM)
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
	153	#undef READONLY_DATA_SECTION_ASM_OP
	154	#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata,\t\"a\",\t\"progbits\""
	155
	156	#undef DATA_SECTION_ASM_OP
	157	#define DATA_SECTION_ASM_OP "\t.section\t.data,\t\"aw\",\t\"progbits\""
	158
	159	#undef SDATA_SECTION_ASM_OP
	160	#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\t\"asw\",\t\"progbits\""
	161
	162	#undef BSS_SECTION_ASM_OP
	163	#define BSS_SECTION_ASM_OP "\t.section\t.bss,\t\"aw\",\t\"nobits\""
	164
	165	#undef SBSS_SECTION_ASM_OP
	166	#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\t\"asw\",\t\"nobits\""
	167
	168	#undef TEXT_SECTION_ASM_OP
	169	#define TEXT_SECTION_ASM_OP "\t.section\t.text,\t\"ax\",\t\"progbits\""