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comparison gcc/config/mips/sde.h @ 0:a06113de4d67

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author kent <kent@cr.ie.u-ryukyu.ac.jp>
date Fri, 17 Jul 2009 14:47:48 +0900
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-1:000000000000 0:a06113de4d67
1 /* Definitions of target machine for GNU compiler.
2 MIPS SDE version.
3 Copyright (C) 2003, 2004, 2007, 2008, 2009
4 Free Software Foundation, Inc.
5
6 This file is part of GCC.
7
8 GCC 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 3, or (at your option)
11 any later version.
12
13 GCC 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 GCC; see the file COPYING3. If not see
20 <http://www.gnu.org/licenses/>. */
21
22 #undef DRIVER_SELF_SPECS
23 #define DRIVER_SELF_SPECS \
24 /* Make sure a -mips option is present. This helps us to pick \
25 the right multilib, and also makes the later specs easier \
26 to write. */ \
27 MIPS_ISA_LEVEL_SPEC, \
28 \
29 /* Infer the default float setting from -march. */ \
30 MIPS_ARCH_FLOAT_SPEC, \
31 \
32 /* If no ABI option is specified, infer one from the ISA level \
33 or -mgp setting. */ \
34 "%{!mabi=*: %{" MIPS_32BIT_OPTION_SPEC ": -mabi=32;: -mabi=n32}}", \
35 \
36 /* Remove a redundant -mfp64 for -mabi=n32; we want the !mfp64 \
37 multilibs. There's no need to check whether the architecture \
38 is 64-bit; cc1 will complain if it isn't. */ \
39 "%{mabi=n32: %<mfp64}", \
40 \
41 /* Make sure that an endian option is always present. This makes \
42 things like LINK_SPEC easier to write. */ \
43 "%{!EB:%{!EL:%(endian_spec)}}", \
44 \
45 /* -mcode-xonly is a traditional alias for -mcode-readable=pcrel and \
46 -mno-data-in-code is a traditional alias for -mcode-readable=no. \
47 The latter trumps the former. */ \
48 "%{mno-data-in-code: -mcode-readable=no}", \
49 "%{!mcode-readable=no: %{mcode-xonly: -mcode-readable=pcrel}}", \
50 "%<mno-data-in-code %<mcode-xonly", \
51 \
52 /* Configuration-independent MIPS rules. */ \
53 BASE_DRIVER_SELF_SPECS
54
55 /* Use trap rather than break for all but MIPS I ISA. Force -no-mips16,
56 so that MIPS16 assembler code requires an explicit ".set mips16".
57 Very little hand-written MIPS16 assembler exists, and some build
58 systems expect code to be assembled as non-MIPS16 even if the
59 prevailing compiler flags select -mips16. */
60 #undef SUBTARGET_ASM_SPEC
61 #define SUBTARGET_ASM_SPEC "\
62 %{!mips1:--trap} \
63 %{mips16:-no-mips16}"
64
65 #undef LINK_SPEC
66 #define LINK_SPEC "\
67 %(endian_spec) \
68 %{G*} %{mips1} %{mips2} %{mips3} %{mips4} %{mips32*} %{mips64*} \
69 %{bestGnum} \
70 %{shared} %{non_shared} %{call_shared} \
71 %{mabi=n32:-melf32%{EB:b}%{EL:l}tsmipn32} \
72 %{mabi=64:-melf64%{EB:b}%{EL:l}tsmip} \
73 %{mabi=32:-melf32%{EB:b}%{EL:l}tsmip}"
74
75 #undef DEFAULT_SIGNED_CHAR
76 #define DEFAULT_SIGNED_CHAR 0
77
78 /* SDE-MIPS won't ever support SDB debugging info. */
79 #undef SDB_DEBUGGING_INFO
80
81 /* Describe how we implement __builtin_eh_return. */
82
83 /* At the moment, nothing appears to use more than 2 EH data registers.
84 The chosen registers must not clash with the return register ($2),
85 EH_RETURN_STACKADJ ($3), or MIPS_EPILOGUE_TEMP ($5), and they must
86 be general MIPS16 registers. Pick $6 and $7. */
87 #undef EH_RETURN_DATA_REGNO
88 #define EH_RETURN_DATA_REGNO(N) \
89 ((N) < 2 ? 7 - (N) : INVALID_REGNUM)
90
91 /* Use $5 as a temporary for both MIPS16 and non-MIPS16. */
92 #undef MIPS_EPILOGUE_TEMP_REGNUM
93 #define MIPS_EPILOGUE_TEMP_REGNUM (GP_REG_FIRST + 5)
94
95 /* Using long will always be right for size_t and ptrdiff_t, since
96 sizeof(long) must equal sizeof(void *), following from the setting
97 of the -mlong64 option. */
98 #undef SIZE_TYPE
99 #define SIZE_TYPE "long unsigned int"
100 #undef PTRDIFF_TYPE
101 #define PTRDIFF_TYPE "long int"
102
103 /* Enable parsing of #pragma pack(push,<n>) and #pragma pack(pop). */
104 #define HANDLE_PRAGMA_PACK_PUSH_POP 1
105
106 /* Use standard ELF-style local labels (not '$' as on early Irix). */
107 #undef LOCAL_LABEL_PREFIX
108 #define LOCAL_LABEL_PREFIX "."
109
110 /* Use periods rather than dollar signs in special g++ assembler names. */
111 #define NO_DOLLAR_IN_LABEL
112
113 /* Attach a special .ident directive to the end of the file to identify
114 the version of GCC which compiled this code. */
115 #undef IDENT_ASM_OP
116 #define IDENT_ASM_OP "\t.ident\t"
117
118 /* Output #ident string into the ELF .comment section, so it doesn't
119 form part of the load image, and so that it can be stripped. */
120 #undef ASM_OUTPUT_IDENT
121 #define ASM_OUTPUT_IDENT(STREAM, STRING) \
122 fprintf (STREAM, "%s\"%s\"\n", IDENT_ASM_OP, STRING);
123
124 /* Currently we don't support 128bit long doubles, so for now we force
125 n32 to be 64bit. */
126 #undef LONG_DOUBLE_TYPE_SIZE
127 #define LONG_DOUBLE_TYPE_SIZE 64
128
129 #ifdef IN_LIBGCC2
130 #undef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
131 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE 64
132 #endif
133
134 /* Force all .init and .fini entries to be 32-bit, not mips16, so that
135 in a mixed environment they are all the same mode. The crti.asm and
136 crtn.asm files will also be compiled as 32-bit due to the
137 -no-mips16 flag in SUBTARGET_ASM_SPEC above. */
138 #undef CRT_CALL_STATIC_FUNCTION
139 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
140 asm (SECTION_OP "\n\
141 .set push\n\
142 .set nomips16\n\
143 jal " USER_LABEL_PREFIX #FUNC "\n\
144 .set pop\n\
145 " TEXT_SECTION_ASM_OP);