GCC Middle and Back End API Reference
target-def.h
Go to the documentation of this file.
1 /* Default initializers for a generic GCC target.
2  Copyright (C) 2001-2013 Free Software Foundation, Inc.
3 
4  This program is free software; you can redistribute it and/or modify it
5  under the terms of the GNU General Public License as published by the
6  Free Software Foundation; either version 3, or (at your option) any
7  later version.
8 
9  This program is distributed in the hope that it will be useful,
10  but WITHOUT ANY WARRANTY; without even the implied warranty of
11  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12  GNU General Public License for more details.
13 
14  You should have received a copy of the GNU General Public License
15  along with this program; see the file COPYING3. If not see
16  <http://www.gnu.org/licenses/>.
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.def 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 #define TARGET_ASM_ALIGNED_HI_OP "\t.short\t"
33 #define TARGET_ASM_ALIGNED_SI_OP "\t.long\t"
34 #define TARGET_ASM_ALIGNED_DI_OP NULL
35 #define TARGET_ASM_ALIGNED_TI_OP NULL
36 
37 /* GAS and SYSV4 assemblers accept these. */
38 #if defined (OBJECT_FORMAT_ELF)
39 #define TARGET_ASM_UNALIGNED_HI_OP "\t.2byte\t"
40 #define TARGET_ASM_UNALIGNED_SI_OP "\t.4byte\t"
41 #define TARGET_ASM_UNALIGNED_DI_OP "\t.8byte\t"
42 #define TARGET_ASM_UNALIGNED_TI_OP NULL
43 #else
44 #define TARGET_ASM_UNALIGNED_HI_OP NULL
45 #define TARGET_ASM_UNALIGNED_SI_OP NULL
46 #define TARGET_ASM_UNALIGNED_DI_OP NULL
47 #define TARGET_ASM_UNALIGNED_TI_OP NULL
48 #endif /* OBJECT_FORMAT_ELF */
49 
50 #if !defined(TARGET_ASM_CONSTRUCTOR) && !defined(USE_COLLECT2)
51 # ifdef CTORS_SECTION_ASM_OP
52 # define TARGET_ASM_CONSTRUCTOR default_ctor_section_asm_out_constructor
53 # else
54 # ifdef TARGET_ASM_NAMED_SECTION
55 # define TARGET_ASM_CONSTRUCTOR default_named_section_asm_out_constructor
56 # else
57 # define TARGET_ASM_CONSTRUCTOR default_stabs_asm_out_constructor
58 # endif
59 # endif
60 #endif
61 
62 #if !defined(TARGET_ASM_DESTRUCTOR) && !defined(USE_COLLECT2)
63 # ifdef DTORS_SECTION_ASM_OP
64 # define TARGET_ASM_DESTRUCTOR default_dtor_section_asm_out_destructor
65 # else
66 # ifdef TARGET_ASM_NAMED_SECTION
67 # define TARGET_ASM_DESTRUCTOR default_named_section_asm_out_destructor
68 # else
69 # define TARGET_ASM_DESTRUCTOR default_stabs_asm_out_destructor
70 # endif
71 # endif
72 #endif
73 
74 #if !defined(TARGET_HAVE_CTORS_DTORS)
75 # if defined(TARGET_ASM_CONSTRUCTOR) && defined(TARGET_ASM_DESTRUCTOR)
76 # define TARGET_HAVE_CTORS_DTORS true
77 # endif
78 #endif
79 
80 #ifndef TARGET_TERMINATE_DW2_EH_FRAME_INFO
81 #ifdef EH_FRAME_SECTION_NAME
82 #define TARGET_TERMINATE_DW2_EH_FRAME_INFO false
83 #endif
84 #endif
85 
86 #if !defined(TARGET_ASM_OUTPUT_ANCHOR) && !defined(ASM_OUTPUT_DEF)
87 #define TARGET_ASM_OUTPUT_ANCHOR NULL
88 #endif
89 
90 #define TARGET_ASM_ALIGNED_INT_OP \
91  {TARGET_ASM_ALIGNED_HI_OP, \
92  TARGET_ASM_ALIGNED_SI_OP, \
93  TARGET_ASM_ALIGNED_DI_OP, \
94  TARGET_ASM_ALIGNED_TI_OP}
95 
96 #define TARGET_ASM_UNALIGNED_INT_OP \
97  {TARGET_ASM_UNALIGNED_HI_OP, \
98  TARGET_ASM_UNALIGNED_SI_OP, \
99  TARGET_ASM_UNALIGNED_DI_OP, \
100  TARGET_ASM_UNALIGNED_TI_OP}
101 
102 #if !defined (TARGET_FUNCTION_INCOMING_ARG)
103 #define TARGET_FUNCTION_INCOMING_ARG TARGET_FUNCTION_ARG
104 #endif
105 
106 #include "target-hooks-def.h"
107 
108 #include "hooks.h"
109 #include "targhooks.h"