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5b93d8bb | 1 | /* tc-i370.h -- Header file for tc-i370.c. |
f7e42eb4 NC |
2 | Copyright 1994, 1995, 1996, 1997, 1998, 2000 |
3 | Free Software Foundation, Inc. | |
5b93d8bb AM |
4 | Written by Ian Lance Taylor, Cygnus Support. |
5 | ||
6 | This file is part of GAS, the GNU Assembler. | |
7 | ||
8 | GAS 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 | GAS 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 GAS; see the file COPYING. If not, write to the Free | |
20 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
4a4f25cf | 21 | 02111-1307, USA. */ |
5b93d8bb AM |
22 | |
23 | #define TC_I370 | |
24 | ||
25 | #ifdef ANSI_PROTOTYPES | |
26 | struct fix; | |
27 | #endif | |
28 | ||
29 | /* Set the endianness we are using. Default to big endian. */ | |
30 | #ifndef TARGET_BYTES_BIG_ENDIAN | |
31 | #define TARGET_BYTES_BIG_ENDIAN 1 | |
32 | #endif | |
33 | ||
34 | #ifndef BFD_ASSEMBLER | |
35 | #error I370 support requires BFD_ASSEMBLER | |
36 | #endif | |
37 | ||
38 | /* The target BFD architecture. */ | |
39 | #define TARGET_ARCH (i370_arch ()) | |
40 | extern enum bfd_architecture i370_arch PARAMS ((void)); | |
41 | ||
42 | /* Whether or not the target is big endian */ | |
43 | extern int target_big_endian; | |
44 | ||
45 | /* The target BFD format. */ | |
46 | #ifdef OBJ_ELF | |
47 | #define TARGET_FORMAT ("elf32-i370") | |
48 | #endif | |
49 | ||
50 | /* Permit temporary numeric labels. */ | |
51 | #define LOCAL_LABELS_FB 1 | |
52 | ||
53 | /* $ is used to refer to the current location. */ | |
54 | /* #define DOLLAR_DOT */ | |
55 | ||
56 | #ifdef OBJ_ELF | |
57 | #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */ | |
58 | #endif | |
59 | ||
60 | /* We don't need to handle .word strangely. */ | |
61 | #define WORKING_DOT_WORD | |
62 | ||
63 | /* We set the fx_done field appropriately in md_apply_fix. */ | |
64 | #define TC_HANDLES_FX_DONE | |
65 | \f | |
66 | ||
67 | #ifdef OBJ_ELF | |
68 | ||
69 | /* Branch prediction relocations must force relocation. */ | |
70 | #define TC_FORCE_RELOCATION_SECTION(FIXP,SEC) 1 | |
71 | ||
72 | /* Support for SHF_EXCLUDE and SHT_ORDERED */ | |
73 | extern int i370_section_letter PARAMS ((int, char **)); | |
74 | extern int i370_section_type PARAMS ((char *, size_t)); | |
75 | extern int i370_section_word PARAMS ((char *, size_t)); | |
76 | extern int i370_section_flags PARAMS ((int, int, int)); | |
77 | ||
78 | #define md_elf_section_letter(LETTER, PTR_MSG) i370_section_letter (LETTER, PTR_MSG) | |
79 | #define md_elf_section_type(STR, LEN) i370_section_type (STR, LEN) | |
80 | #define md_elf_section_word(STR, LEN) i370_section_word (STR, LEN) | |
81 | #define md_elf_section_flags(FLAGS, ATTR, TYPE) i370_section_flags (FLAGS, ATTR, TYPE) | |
82 | ||
83 | #define tc_comment_chars i370_comment_chars | |
84 | extern const char *i370_comment_chars; | |
85 | ||
86 | /* We must never ever try to resolve references to externally visible | |
87 | symbols in the assembler, because the .o file might go into a shared | |
88 | library, and some other shared library might override that symbol. */ | |
89 | #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \ | |
90 | ((FIX)->fx_addsy == NULL \ | |
91 | || (! S_IS_EXTERNAL ((FIX)->fx_addsy) \ | |
92 | && ! S_IS_WEAK ((FIX)->fx_addsy) \ | |
93 | && S_IS_DEFINED ((FIX)->fx_addsy) \ | |
94 | && ! S_IS_COMMON ((FIX)->fx_addsy))) | |
95 | ||
96 | #endif /* OBJ_ELF */ | |
97 | ||
98 | /* call md_apply_fix3 with segment instead of md_apply_fix */ | |
99 | #define MD_APPLY_FIX3 | |
100 | ||
101 | /* call md_pcrel_from_section, not md_pcrel_from */ | |
102 | #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section(FIXP, SEC) | |
103 | extern long md_pcrel_from_section PARAMS ((struct fix *, segT)); | |
104 | ||
105 | #define md_operand(x) |