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a85d7ed0 | 1 | /* tc-s390.h -- Header file for tc-s390.c. |
98d3f06f | 2 | Copyright 2000, 2001, 2002 Free Software Foundation, Inc. |
a85d7ed0 NC |
3 | Written by Martin Schwidefsky ([email protected]). |
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 | |
98d3f06f | 20 | 02111-1307, USA. */ |
a85d7ed0 NC |
21 | |
22 | #define TC_S390 | |
23 | ||
24 | #ifdef ANSI_PROTOTYPES | |
25 | struct fix; | |
26 | #endif | |
27 | ||
28 | #ifndef BFD_ASSEMBLER | |
29 | #error S390 support requires BFD_ASSEMBLER | |
30 | #endif | |
31 | ||
a161fe53 | 32 | #define TC_FORCE_RELOCATION(FIX) tc_s390_force_relocation(FIX) |
b8edc45c | 33 | extern int tc_s390_force_relocation PARAMS ((struct fix *)); |
d6767af8 | 34 | |
426318c5 AM |
35 | /* Don't resolve foo@PLT-bar to offset@PLT. */ |
36 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \ | |
37 | (! SEG_NORMAL (SEG) || TC_FORCE_RELOCATION (FIX)) | |
38 | ||
a85d7ed0 NC |
39 | #define tc_fix_adjustable(X) tc_s390_fix_adjustable(X) |
40 | extern int tc_s390_fix_adjustable PARAMS ((struct fix *)); | |
41 | ||
a161fe53 AM |
42 | /* Values passed to md_apply_fix3 don't include symbol values. */ |
43 | #define MD_APPLY_SYM_VALUE(FIX) 0 | |
b8edc45c | 44 | |
a85d7ed0 NC |
45 | /* The target BFD architecture. */ |
46 | #define TARGET_ARCH bfd_arch_s390 | |
47 | extern enum bfd_architecture s390_arch PARAMS ((void)); | |
48 | ||
49 | /* The target BFD format. */ | |
50 | #define TARGET_FORMAT s390_target_format() | |
98d3f06f | 51 | extern const char *s390_target_format PARAMS ((void)); |
a85d7ed0 | 52 | |
98d3f06f | 53 | /* Set the endianness we are using. */ |
a85d7ed0 NC |
54 | #define TARGET_BYTES_BIG_ENDIAN 1 |
55 | ||
56 | /* Whether or not the target is big endian */ | |
57 | extern int target_big_endian; | |
58 | ||
59 | /* Permit temporary numeric labels. */ | |
60 | #define LOCAL_LABELS_FB 1 | |
61 | ||
62 | /* $ is used to refer to the current location. */ | |
63 | /* #define DOLLAR_DOT */ | |
64 | ||
65 | /* We need to be able to make relocations involving the difference of | |
66 | two symbols. This includes the difference of two symbols when | |
c745b67a | 67 | one of them is undefined (this comes up in PIC code generation). |
a85d7ed0 NC |
68 | */ |
69 | #define UNDEFINED_DIFFERENCE_OK | |
70 | ||
71 | /* foo-. gets turned into PC relative relocs */ | |
72 | #define DIFF_EXPR_OK | |
73 | ||
74 | /* We don't need to handle .word strangely. */ | |
75 | #define WORKING_DOT_WORD | |
76 | ||
a85d7ed0 NC |
77 | #define md_number_to_chars number_to_chars_bigendian |
78 | ||
79 | #define md_do_align(n, fill, len, max, around) \ | |
80 | if ((n) && !need_pass_2 && (fill == 0) && \ | |
81 | (bfd_get_section_flags (stdoutput, now_seg) & SEC_CODE) != 0) { \ | |
82 | char *p; \ | |
83 | p = frag_var (rs_align_code, 15, 1, (relax_substateT) max, \ | |
84 | (symbolS *) 0, (offsetT) (n), (char *) 0); \ | |
85 | *p = 0x07; \ | |
86 | goto around; \ | |
87 | } | |
88 | ||
89 | extern void s390_align_code PARAMS ((fragS *, int)); | |
90 | ||
91 | #define HANDLE_ALIGN(fragP) \ | |
c745b67a | 92 | if (fragP->fr_type == rs_align_code) \ |
a85d7ed0 NC |
93 | s390_align_code (fragP, (fragP->fr_next->fr_address \ |
94 | - fragP->fr_address \ | |
95 | - fragP->fr_fix)); | |
96 | ||
a85d7ed0 | 97 | /* call md_pcrel_from_section, not md_pcrel_from */ |
a161fe53 | 98 | #define MD_PCREL_FROM_SECTION(FIX, SEC) md_pcrel_from_section(FIX, SEC) |
a85d7ed0 NC |
99 | extern long md_pcrel_from_section PARAMS ((struct fix *, segT)); |
100 | ||
101 | #define md_operand(x) | |
102 | ||
103 | extern void s390_md_end PARAMS ((void)); | |
104 | #define md_end() s390_md_end () |