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252b5132 | 1 | /* tc-mn10300.h -- Header file for tc-mn10300.c. |
ae6063d4 AM |
2 | Copyright 1996, 1997, 2000, 2001, 2002, 2003 |
3 | Free Software Foundation, Inc. | |
252b5132 RH |
4 | |
5 | This file is part of GAS, the GNU Assembler. | |
6 | ||
7 | GAS is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 2, or (at your option) | |
10 | any later version. | |
11 | ||
12 | GAS is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with GAS; see the file COPYING. If not, write to the Free | |
19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
82efde3a | 20 | 02111-1307, USA. */ |
252b5132 RH |
21 | |
22 | #define TC_MN10300 | |
23 | ||
24 | #define TARGET_BYTES_BIG_ENDIAN 0 | |
25 | ||
26 | #ifndef BFD_ASSEMBLER | |
27 | #error MN10300 support requires BFD_ASSEMBLER | |
28 | #endif | |
29 | ||
bf6f0d0c AO |
30 | #define DIFF_EXPR_OK |
31 | #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_" | |
32 | ||
33 | #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ | |
34 | ((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL \ | |
35 | && (FIX)->fx_r_type != BFD_RELOC_MN10300_GOT32 \ | |
36 | && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL \ | |
37 | && ((FIX)->fx_addsy == NULL \ | |
38 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
39 | && ! S_IS_WEAK ((FIX)->fx_addsy) \ | |
40 | && S_IS_DEFINED ((FIX)->fx_addsy) \ | |
41 | && ! S_IS_COMMON ((FIX)->fx_addsy)))) | |
42 | ||
43 | #define md_parse_name(name, exprP, nextcharP) \ | |
44 | mn10300_parse_name ((name), (exprP), (nextcharP)) | |
45 | int mn10300_parse_name PARAMS ((char const *, expressionS *, char *)); | |
46 | ||
47 | #define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP) \ | |
48 | mn10300_cons_fix_new ((FRAG), (OFF), (LEN), (EXP)) | |
49 | void mn10300_cons_fix_new PARAMS ((fragS *, int, int, expressionS *)); | |
50 | ||
51 | /* This is used to construct expressions out of @GOTOFF, @PLT and @GOT | |
52 | symbols. The relocation type is stored in X_md. */ | |
53 | #define O_PIC_reloc O_md1 | |
54 | ||
252b5132 RH |
55 | /* The target BFD architecture. */ |
56 | #define TARGET_ARCH bfd_arch_mn10300 | |
57 | ||
2ce28d43 AO |
58 | #ifdef TE_LINUX |
59 | #define TARGET_FORMAT "elf32-am33lin" | |
60 | #else | |
252b5132 | 61 | #define TARGET_FORMAT "elf32-mn10300" |
2ce28d43 | 62 | #endif |
252b5132 | 63 | |
a161fe53 | 64 | |
a161fe53 AM |
65 | /* Do not adjust relocations involving symbols in code sections, |
66 | because it breaks linker relaxations. This could be fixed in the | |
67 | linker, but this fix is simpler, and it pretty much only affects | |
68 | object size a little bit. */ | |
ae6063d4 AM |
69 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \ |
70 | (((SEC)->flags & SEC_CODE) != 0 \ | |
71 | || ! SEG_NORMAL (SEC) \ | |
72 | || TC_FORCE_RELOCATION (FIX)) | |
58a77e41 | 73 | |
074d08b0 AO |
74 | /* We validate subtract arguments within tc_gen_reloc(), so don't |
75 | report errors at this point. */ | |
76 | #define TC_VALIDATE_FIX_SUB(FIX) 1 | |
77 | ||
78 | /* Fixup debug sections since we will never relax them. Ideally, we | |
79 | could do away with this and instead check every single fixup with | |
80 | TC_FORCE_RELOCATION and TC_FORCE_RELOCATION_SUB_NAME, verifying | |
81 | that the sections of the referenced symbols (and not the sections | |
82 | in which the fixup appears) may be subject to relaxation. We'd | |
83 | still have to check the section in which the fixup appears, because | |
84 | we want to do some simplifications in debugging info that might | |
85 | break in real code. | |
86 | ||
87 | Using the infrastructure in write.c to simplify subtraction fixups | |
88 | would enable us to remove a lot of code from tc_gen_reloc(), but | |
89 | this is simpler, faster, and produces almost the same effect. | |
90 | Also, in the macros above, we can't check whether the fixup is in a | |
91 | debugging section or not, so we have to use this for now. */ | |
58a77e41 EC |
92 | #define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC) |
93 | ||
252b5132 RH |
94 | #define md_operand(x) |
95 | ||
96 | /* Permit temporary numeric labels. */ | |
97 | #define LOCAL_LABELS_FB 1 | |
98 | ||
99 | /* We don't need to handle .word strangely. */ | |
100 | #define WORKING_DOT_WORD | |
101 | ||
102 | #define md_number_to_chars number_to_chars_littleendian | |
103 | ||
104 | /* Don't bother to adjust relocs. */ | |
53cb0362 DD |
105 | /* #define tc_fix_adjustable(FIX) 0 */ |
106 | #define tc_fix_adjustable(FIX) mn10300_fix_adjustable (FIX) | |
b34976b6 | 107 | extern bfd_boolean mn10300_fix_adjustable PARAMS ((struct fix *)); |
252b5132 RH |
108 | |
109 | /* We do relaxing in the assembler as well as the linker. */ | |
110 | extern const struct relax_type md_relax_table[]; | |
111 | #define TC_GENERIC_RELAX_TABLE md_relax_table | |
e8b1cae5 | 112 | |
c0bd0db2 | 113 | #define DWARF2_LINE_MIN_INSN_LENGTH 1 |