target-def.h revision 117395 
1/* Default initializers for a generic GCC target.
2   Copyright (C) 2001, 2002 Free Software Foundation, Inc.
3
4This program is free software; you can redistribute it and/or modify it
5under the terms of the GNU General Public License as published by the
6Free Software Foundation; either version 2, or (at your option) any
7later version.
8
9This program is distributed in the hope that it will be useful,
10but WITHOUT ANY WARRANTY; without even the implied warranty of
11MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
12GNU General Public License for more details.
13
14You should have received a copy of the GNU General Public License
15along with this program; if not, write to the Free Software
16Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17
18 In other words, you are welcome to use, share and improve this program.
19 You are forbidden to forbid anyone else to use, share and improve
20 what you give them.   Help stamp out software-hoarding!  */
21
22/* See target.h for a description of what this file contains and how to
23   use it.
24
25   We want to have non-NULL default definitions of all hook functions,
26   even if they do nothing.  */
27
28/* Note that if one of these macros must be defined in an OS .h file
29   rather than the .c file, then we need to wrap the default
30   definition in a #ifndef, since files include tm.h before this one.  */
31
32/* Assembler output.  */
33#define TARGET_ASM_OPEN_PAREN "("
34#define TARGET_ASM_CLOSE_PAREN ")"
35#define TARGET_ASM_BYTE_OP "\t.byte\t"
36
37#define TARGET_ASM_ALIGNED_HI_OP "\t.short\t"
38#define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
39#define TARGET_ASM_ALIGNED_DI_OP NULL
40#define TARGET_ASM_ALIGNED_TI_OP NULL
41
42/* GAS and SYSV4 assemblers accept these.  */
43#if defined (OBJECT_FORMAT_ELF) || defined (OBJECT_FORMAT_ROSE)
44#define TARGET_ASM_UNALIGNED_HI_OP "\t.2byte\t"
45#define TARGET_ASM_UNALIGNED_SI_OP "\t.4byte\t"
46#define TARGET_ASM_UNALIGNED_DI_OP "\t.8byte\t"
47#define TARGET_ASM_UNALIGNED_TI_OP NULL
48#else
49#define TARGET_ASM_UNALIGNED_HI_OP NULL
50#define TARGET_ASM_UNALIGNED_SI_OP NULL
51#define TARGET_ASM_UNALIGNED_DI_OP NULL
52#define TARGET_ASM_UNALIGNED_TI_OP NULL
53#endif /* OBJECT_FORMAT_ELF || OBJECT_FORMAT_ROSE */
54
55#define TARGET_ASM_INTEGER default_assemble_integer
56
57#ifndef TARGET_ASM_GLOBALIZE_LABEL
58#define TARGET_ASM_GLOBALIZE_LABEL default_globalize_label
59#endif
60
61#ifndef TARGET_ASM_ASSEMBLE_VISIBILITY
62#define TARGET_ASM_ASSEMBLE_VISIBILITY default_assemble_visibility
63#endif
64
65#define TARGET_ASM_FUNCTION_PROLOGUE default_function_pro_epilogue
66#define TARGET_ASM_FUNCTION_EPILOGUE default_function_pro_epilogue
67#define TARGET_ASM_FUNCTION_END_PROLOGUE no_asm_to_stream
68#define TARGET_ASM_FUNCTION_BEGIN_EPILOGUE no_asm_to_stream
69
70#ifndef TARGET_ASM_SELECT_SECTION
71#define TARGET_ASM_SELECT_SECTION default_select_section
72#endif
73
74#ifndef TARGET_ASM_UNIQUE_SECTION
75#define TARGET_ASM_UNIQUE_SECTION default_unique_section
76#endif
77
78#ifndef TARGET_ASM_SELECT_RTX_SECTION
79#define TARGET_ASM_SELECT_RTX_SECTION default_select_rtx_section
80#endif
81
82#if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
83# ifdef CTORS_SECTION_ASM_OP
84#  define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
85# else
86#  ifdef TARGET_ASM_NAMED_SECTION
87#   define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
88#  else
89#   define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
90#  endif
91# endif
92#endif
93
94#if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
95# ifdef DTORS_SECTION_ASM_OP
96#  define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
97# else
98#  ifdef TARGET_ASM_NAMED_SECTION
99#   define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
100#  else
101#   define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
102#  endif
103# endif
104#endif
105
106#define TARGET_ASM_OUTPUT_MI_THUNK NULL
107#define TARGET_ASM_CAN_OUTPUT_MI_THUNK hook_bool_tree_hwi_hwi_tree_false
108
109#if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
110#define TARGET_HAVE_CTORS_DTORS true
111#else
112#define TARGET_HAVE_CTORS_DTORS false
113#define TARGET_ASM_CONSTRUCTOR NULL
114#define TARGET_ASM_DESTRUCTOR NULL
115#endif
116
117#ifdef TARGET_ASM_NAMED_SECTION
118#define TARGET_HAVE_NAMED_SECTIONS true
119#else
120#define TARGET_ASM_NAMED_SECTION default_no_named_section
121#define TARGET_HAVE_NAMED_SECTIONS false
122#endif
123
124#ifndef TARGET_HAVE_TLS
125#define TARGET_HAVE_TLS false
126#endif
127
128#ifndef TARGET_HAVE_SRODATA_SECTION
129#define TARGET_HAVE_SRODATA_SECTION false
130#endif
131
132#ifndef TARGET_TERMINATE_DW2_EH_FRAME_INFO
133#ifdef EH_FRAME_SECTION_NAME
134#define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
135#else
136#define TARGET_TERMINATE_DW2_EH_FRAME_INFO true
137#endif
138#endif
139
140#ifndef TARGET_ASM_EXCEPTION_SECTION
141#define TARGET_ASM_EXCEPTION_SECTION default_exception_section
142#endif
143
144#ifndef TARGET_ASM_EH_FRAME_SECTION
145#define TARGET_ASM_EH_FRAME_SECTION default_eh_frame_section
146#endif
147
148#define TARGET_ASM_ALIGNED_INT_OP				\
149		       {TARGET_ASM_ALIGNED_HI_OP,		\
150			TARGET_ASM_ALIGNED_SI_OP,		\
151			TARGET_ASM_ALIGNED_DI_OP,		\
152			TARGET_ASM_ALIGNED_TI_OP}
153
154#define TARGET_ASM_UNALIGNED_INT_OP				\
155		       {TARGET_ASM_UNALIGNED_HI_OP,		\
156			TARGET_ASM_UNALIGNED_SI_OP,		\
157			TARGET_ASM_UNALIGNED_DI_OP,		\
158			TARGET_ASM_UNALIGNED_TI_OP}
159
160#define TARGET_ASM_OUT {TARGET_ASM_OPEN_PAREN,			\
161			TARGET_ASM_CLOSE_PAREN,			\
162			TARGET_ASM_BYTE_OP,			\
163			TARGET_ASM_ALIGNED_INT_OP,		\
164			TARGET_ASM_UNALIGNED_INT_OP,		\
165			TARGET_ASM_INTEGER,			\
166			TARGET_ASM_GLOBALIZE_LABEL,		\
167			TARGET_ASM_ASSEMBLE_VISIBILITY,		\
168			TARGET_ASM_FUNCTION_PROLOGUE,		\
169			TARGET_ASM_FUNCTION_END_PROLOGUE,	\
170			TARGET_ASM_FUNCTION_BEGIN_EPILOGUE,	\
171			TARGET_ASM_FUNCTION_EPILOGUE,		\
172			TARGET_ASM_NAMED_SECTION,		\
173			TARGET_ASM_EXCEPTION_SECTION,		\
174			TARGET_ASM_EH_FRAME_SECTION,		\
175			TARGET_ASM_SELECT_SECTION,		\
176			TARGET_ASM_SELECT_RTX_SECTION,		\
177			TARGET_ASM_UNIQUE_SECTION,		\
178			TARGET_ASM_CONSTRUCTOR,			\
179			TARGET_ASM_DESTRUCTOR,                  \
180                        TARGET_ASM_OUTPUT_MI_THUNK,             \
181                        TARGET_ASM_CAN_OUTPUT_MI_THUNK }
182
183/* Scheduler hooks.  All of these default to null pointers, which
184   haifa-sched.c looks for and handles.  */
185#define TARGET_SCHED_ADJUST_COST 0
186#define TARGET_SCHED_ADJUST_PRIORITY 0
187#define TARGET_SCHED_ISSUE_RATE 0
188#define TARGET_SCHED_VARIABLE_ISSUE 0
189#define TARGET_SCHED_INIT 0
190#define TARGET_SCHED_FINISH 0
191#define TARGET_SCHED_REORDER 0
192#define TARGET_SCHED_REORDER2 0
193#define TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE 0
194#define TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN 0
195#define TARGET_SCHED_DFA_PRE_CYCLE_INSN 0
196#define TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN 0
197#define TARGET_SCHED_DFA_POST_CYCLE_INSN 0
198#define TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD 0
199#define TARGET_SCHED_INIT_DFA_BUBBLES 0
200#define TARGET_SCHED_DFA_BUBBLE 0
201
202#define TARGET_SCHED						\
203  {TARGET_SCHED_ADJUST_COST,					\
204   TARGET_SCHED_ADJUST_PRIORITY,				\
205   TARGET_SCHED_ISSUE_RATE,					\
206   TARGET_SCHED_VARIABLE_ISSUE,					\
207   TARGET_SCHED_INIT,						\
208   TARGET_SCHED_FINISH,						\
209   TARGET_SCHED_REORDER,					\
210   TARGET_SCHED_REORDER2,					\
211   TARGET_SCHED_USE_DFA_PIPELINE_INTERFACE,			\
212   TARGET_SCHED_INIT_DFA_PRE_CYCLE_INSN,			\
213   TARGET_SCHED_DFA_PRE_CYCLE_INSN,				\
214   TARGET_SCHED_INIT_DFA_POST_CYCLE_INSN,			\
215   TARGET_SCHED_DFA_POST_CYCLE_INSN,				\
216   TARGET_SCHED_FIRST_CYCLE_MULTIPASS_DFA_LOOKAHEAD,		\
217   TARGET_SCHED_INIT_DFA_BUBBLES,				\
218   TARGET_SCHED_DFA_BUBBLE}
219
220/* All in tree.c.  */
221#define TARGET_MERGE_DECL_ATTRIBUTES merge_decl_attributes
222#define TARGET_MERGE_TYPE_ATTRIBUTES merge_type_attributes
223#define TARGET_ATTRIBUTE_TABLE NULL
224
225/* In builtins.c.  */
226#define TARGET_INIT_BUILTINS default_init_builtins
227#define TARGET_EXPAND_BUILTIN default_expand_builtin
228
229/* In varasm.c.  */
230#ifndef TARGET_SECTION_TYPE_FLAGS
231#define TARGET_SECTION_TYPE_FLAGS default_section_type_flags
232#endif
233
234#ifndef TARGET_STRIP_NAME_ENCODING
235#define TARGET_STRIP_NAME_ENCODING default_strip_name_encoding
236#endif
237
238#ifndef TARGET_BINDS_LOCAL_P
239#define TARGET_BINDS_LOCAL_P default_binds_local_p
240#endif
241
242/* In hook.c.  */
243#define TARGET_CANNOT_MODIFY_JUMPS_P hook_bool_void_false
244#define TARGET_CANNOT_FORCE_CONST_MEM hook_bool_rtx_false
245#define TARGET_COMP_TYPE_ATTRIBUTES hook_int_tree_tree_1
246#define TARGET_SET_DEFAULT_TYPE_ATTRIBUTES hook_void_tree
247#define TARGET_INSERT_ATTRIBUTES hook_void_tree_treeptr
248#define TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P hook_bool_tree_false
249#define TARGET_MS_BITFIELD_LAYOUT_P hook_bool_tree_false
250
251#ifndef TARGET_IN_SMALL_DATA_P
252#define TARGET_IN_SMALL_DATA_P hook_bool_tree_false
253#endif
254
255#ifndef TARGET_ENCODE_SECTION_INFO
256#define TARGET_ENCODE_SECTION_INFO hook_void_tree_int
257#endif
258
259/* The whole shebang.  */
260#define TARGET_INITIALIZER			\
261{						\
262  TARGET_ASM_OUT,				\
263  TARGET_SCHED,					\
264  TARGET_MERGE_DECL_ATTRIBUTES,			\
265  TARGET_MERGE_TYPE_ATTRIBUTES,			\
266  TARGET_ATTRIBUTE_TABLE,			\
267  TARGET_COMP_TYPE_ATTRIBUTES,			\
268  TARGET_SET_DEFAULT_TYPE_ATTRIBUTES,		\
269  TARGET_INSERT_ATTRIBUTES,			\
270  TARGET_FUNCTION_ATTRIBUTE_INLINABLE_P,	\
271  TARGET_MS_BITFIELD_LAYOUT_P,			\
272  TARGET_INIT_BUILTINS,				\
273  TARGET_EXPAND_BUILTIN,			\
274  TARGET_SECTION_TYPE_FLAGS,			\
275  TARGET_CANNOT_MODIFY_JUMPS_P,			\
276  TARGET_CANNOT_FORCE_CONST_MEM,		\
277  TARGET_IN_SMALL_DATA_P,			\
278  TARGET_BINDS_LOCAL_P,				\
279  TARGET_ENCODE_SECTION_INFO,			\
280  TARGET_STRIP_NAME_ENCODING,			\
281  TARGET_HAVE_NAMED_SECTIONS,			\
282  TARGET_HAVE_CTORS_DTORS,			\
283  TARGET_HAVE_TLS,				\
284  TARGET_HAVE_SRODATA_SECTION,			\
285  TARGET_TERMINATE_DW2_EH_FRAME_INFO		\
286}
287
288#include "hooks.h"
289