Commit | Line | Data |
---|---|---|
dc966dad ILT |
1 | /* tc-hppa.h -- Header file for the PA |
2 | Copyright (C) 1989, 93, 94, 95, 96, 1997 Free Software Foundation, Inc. | |
5868b1fe | 3 | |
00f6df56 | 4 | This file is part of GAS, the GNU Assembler. |
5868b1fe | 5 | |
00f6df56 JL |
6 | GAS is free software; you can redistribute it and/or modify |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 1, or (at your option) | |
9 | any later version. | |
5868b1fe | 10 | |
00f6df56 JL |
11 | GAS is distributed in the hope that it will be useful, |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
5868b1fe | 15 | |
00f6df56 | 16 | You should have received a copy of the GNU General Public License |
dc966dad ILT |
17 | along with GAS; see the file COPYING. If not, write to the Free |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
5868b1fe ILT |
20 | |
21 | ||
00f6df56 JL |
22 | /* HP PA-RISC support was contributed by the Center for Software Science |
23 | at the University of Utah. */ | |
5868b1fe | 24 | |
00f6df56 JL |
25 | /* Please refrain from exposing the world to the internals of tc-hppa.c |
26 | when this file is included. This means only declaring exported functions, | |
27 | (please PARAMize them!) not exporting structures and data items which | |
28 | are used solely within tc-hppa.c, etc. | |
29 | ||
30 | Also refrain from adding any more object file dependent code, there is | |
31 | already far too much object file format dependent code in this file. | |
32 | In theory this file should contain only exported functions, structures | |
33 | and data declarations common to all PA assemblers. */ | |
d53253d8 | 34 | |
5868b1fe ILT |
35 | #ifndef _TC_HPPA_H |
36 | #define _TC_HPPA_H | |
37 | ||
38 | #ifndef TC_HPPA | |
39 | #define TC_HPPA 1 | |
40 | #endif | |
41 | ||
dc966dad ILT |
42 | #define TARGET_BYTES_BIG_ENDIAN 1 |
43 | ||
00f6df56 JL |
44 | #define TARGET_ARCH bfd_arch_hppa |
45 | ||
46 | /* FIXME. The lack of a place to put things which are both target cpu | |
47 | and target format dependent makes hacks like this necessary. */ | |
5cf4cd1b | 48 | #ifdef OBJ_ELF |
249c7415 | 49 | #include "bfd/elf32-hppa.h" |
00f6df56 JL |
50 | #define TARGET_FORMAT "elf32-hppa" |
51 | #endif | |
d53253d8 | 52 | |
00f6df56 | 53 | #ifdef OBJ_SOM |
249c7415 | 54 | #include "bfd/som.h" |
00f6df56 | 55 | #define TARGET_FORMAT "som" |
5cf4cd1b KR |
56 | #endif |
57 | ||
00f6df56 JL |
58 | /* FIXME. Why oh why aren't these defined somewhere globally? */ |
59 | #ifndef FALSE | |
60 | #define FALSE (0) | |
61 | #define TRUE (!FALSE) | |
62 | #endif | |
5868b1fe ILT |
63 | |
64 | #define ASEC_NULL (asection *)0 | |
65 | ||
d53253d8 JL |
66 | /* Labels are not required to have a colon for a suffix. */ |
67 | #define LABELS_WITHOUT_COLONS | |
5868b1fe | 68 | |
00f6df56 JL |
69 | /* FIXME. This should be static and declared in tc-hppa.c, but |
70 | pa_define_label gets used outside of tc-hppa.c via tc_frob_label. | |
71 | Should also be PARAMized, but symbolS isn't available here. */ | |
72 | extern void pa_define_label (); | |
5868b1fe | 73 | |
00f6df56 JL |
74 | /* FIXME. Types not available here, so they can't be PARAMized. */ |
75 | extern void parse_cons_expression_hppa (); | |
76 | extern void cons_fix_new_hppa (); | |
e03095c9 | 77 | extern int hppa_force_relocation (); |
5868b1fe | 78 | |
249c7415 JL |
79 | /* This gets called before writing the object file to make sure |
80 | things like entry/exit and proc/procend pairs match. */ | |
81 | extern void pa_check_eof PARAMS ((void)); | |
82 | #define tc_frob_file pa_check_eof | |
83 | ||
becfe05e ILT |
84 | #define tc_frob_label(sym) pa_define_label (sym) |
85 | ||
00f6df56 JL |
86 | /* The PA does not need support for either of these. */ |
87 | #define tc_crawl_symbol_chain(headers) {;} | |
88 | #define tc_headers_hook(headers) {;} | |
5868b1fe | 89 | |
00f6df56 | 90 | #define RELOC_EXPANSION_POSSIBLE |
249c7415 | 91 | #define MAX_RELOC_EXPANSION 6 |
5868b1fe | 92 | |
00f6df56 JL |
93 | /* FIXME. More things which are both HPPA and ELF specific. There is |
94 | nowhere to put such things. */ | |
95 | #ifdef OBJ_ELF | |
5868b1fe | 96 | #define elf_tc_final_processing elf_hppa_final_processing |
249c7415 | 97 | void elf_hppa_final_processing PARAMS ((void)); |
00f6df56 | 98 | #endif |
5868b1fe | 99 | |
00f6df56 | 100 | /* The PA needs to parse field selectors in .byte, etc. */ |
5868b1fe ILT |
101 | |
102 | #define TC_PARSE_CONS_EXPRESSION(EXP, NBYTES) \ | |
5cf4cd1b | 103 | parse_cons_expression_hppa (EXP) |
5868b1fe ILT |
104 | #define TC_CONS_FIX_NEW cons_fix_new_hppa |
105 | ||
5cf4cd1b KR |
106 | /* On the PA, an equal sign often appears as a condition or nullification |
107 | completer in an instruction. This can be detected by checking the | |
108 | previous character, if the character is a comma, then the equal is | |
109 | being used as part of an instruction. */ | |
110 | #define TC_EQUAL_IN_INSN(C, PTR) ((C) == ',') | |
111 | ||
112 | /* Similarly for an exclamation point. It is used in FP comparison | |
113 | instructions and as an end of line marker. When used in an instruction | |
114 | it will always follow a comma. */ | |
dc966dad | 115 | #define TC_EOL_IN_INSN(PTR) (*(PTR) == '!' && (PTR)[-1] == ',') |
5868b1fe | 116 | |
00f6df56 | 117 | #define tc_fix_adjustable hppa_fix_adjustable |
2b151da9 | 118 | |
e03095c9 JL |
119 | /* Because of the strange PA calling conventions, it is sometimes |
120 | necessary to emit a relocation for a call even though it would | |
121 | normally appear safe to handle it completely within GAS. */ | |
122 | #define TC_FORCE_RELOCATION(FIXP) hppa_force_relocation (FIXP) | |
123 | ||
249c7415 | 124 | #ifdef OBJ_SOM |
d53253d8 JL |
125 | /* If a symbol is imported, but never used, then the symbol should |
126 | *not* end up in the symbol table. Likewise for absolute symbols | |
127 | with local scope. */ | |
128 | #define tc_frob_symbol(sym,punt) \ | |
129 | if ((S_GET_SEGMENT (sym) == &bfd_und_section && sym->sy_used == 0) \ | |
130 | || (S_GET_SEGMENT (sym) == &bfd_abs_section \ | |
131 | && (sym->bsym->flags & BSF_EXPORT) == 0)) \ | |
132 | punt = 1 | |
dc966dad ILT |
133 | |
134 | /* We need to be able to make relocations involving the difference of | |
135 | two symbols. This includes the difference of two symbols when | |
136 | one of them is undefined (this comes up in PIC code generation). | |
137 | ||
138 | We don't define DIFF_EXPR_OK because it does the wrong thing if | |
139 | the add symbol is undefined and the sub symbol is a symbol in | |
140 | the same section as the relocation. We also need some way to | |
141 | specialize some code in adjust_reloc_syms. */ | |
142 | #define UNDEFINED_DIFFERENCE_OK | |
249c7415 JL |
143 | #endif |
144 | ||
145 | #ifdef OBJ_ELF | |
146 | /* Arggg. The generic BFD ELF code always adds in the section->vma | |
147 | to non-common symbols. This is a lose on the PA. To make matters | |
148 | worse, the generic ELF code already defined obj_frob_symbol. */ | |
149 | #define tc_frob_symbol(sym,punt) \ | |
150 | { \ | |
151 | if (S_GET_SEGMENT (sym) != &bfd_com_section \ | |
152 | && S_GET_SEGMENT (sym) != &bfd_und_section) \ | |
153 | S_SET_VALUE ((sym), (S_GET_VALUE (sym) - (sym)->bsym->section->vma)); \ | |
154 | if ((S_GET_SEGMENT (sym) == &bfd_und_section && sym->sy_used == 0) \ | |
155 | || (S_GET_SEGMENT (sym) == &bfd_abs_section \ | |
156 | && (sym->bsym->flags & BSF_EXPORT) == 0)) \ | |
157 | punt = 1; \ | |
158 | } | |
159 | #endif | |
160 | ||
161 | #define md_operand(x) | |
d53253d8 | 162 | |
dc966dad ILT |
163 | #define TC_FIX_TYPE PTR |
164 | #define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL) | |
165 | ||
5868b1fe | 166 | #endif /* _TC_HPPA_H */ |