1 /* This file is tc-mcore.h
2 
3    Copyright 1999, 2000 Free Software Foundation, Inc.
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
19    Free Software Foundation, 59 Temple Place - Suite 330, Boston, MA
20    02111-1307, USA.  */
21 
22 #ifndef	TC_MCORE
23 #define TC_MCORE 1
24 
25 #ifndef BFD_ASSEMBLER
26  #error MCORE support requires BFD_ASSEMBLER
27 #endif
28 
29 #define TARGET_ARCH	bfd_arch_mcore
30 /* Used to initialise target_big_endian.  */
31 #define TARGET_BYTES_BIG_ENDIAN 0
32 
33 /* Don't write out relocs for pcrel stuff.  */
34 #define TC_COUNT_RELOC(x) (((x)->fx_addsy || (x)->fx_subsy) && \
35 			   (x)->fx_r_type < BFD_RELOC_MCORE_PCREL_IMM8BY4)
36 
37 #define IGNORE_NONSTANDARD_ESCAPES
38 
39 #define TC_RELOC_MANGLE(a,b,c) tc_reloc_mangle (a, b, c)
40 
41 /* Some pseudo-op semantic extensions.  */
42 #define	PSEUDO_LCOMM_OPTIONAL_ALIGN
43 
44 #define LISTING_HEADER        	"M.CORE GAS Version 2.9.4"
45 #define LISTING_LHS_CONT_LINES	4
46 
47 #define NEED_FX_R_TYPE	1
48 #define COFF_FLAGS 	1
49 
50 /* We want local label support.  */
51 #define LOCAL_LABELS_FB 1
52 
53 #define TC_COFF_SIZEMACHDEP(frag) tc_coff_sizemachdep (frag)
54 
55 extern const struct relax_type md_relax_table[];
56 #define TC_GENERIC_RELAX_TABLE md_relax_table
57 #define md_end	md_mcore_end
58 
59 /* Want the section information too...  */
60 #define MD_PCREL_FROM_SECTION(FIXP, SEC) md_pcrel_from_section (FIXP, SEC)
61 
62 #define MD_APPLY_FIX3  /* We want the segment as well.  */
63 
64 #ifdef  OBJ_COFF
65 
66 #define TARGET_FORMAT	(target_big_endian ? "pe-mcore-big" : "pe-mcore-little")
67 
68 struct mcore_tc_sy
69 {
70   int sy_flags;
71 };
72 
73 #define TC_SYMFIELD_TYPE struct mcore_tc_sy
74 
75 # if defined TE_PE
76 #  define TC_FORCE_RELOCATION(x) ((x)->fx_r_type == BFD_RELOC_RVA)
77 # endif
78 
79 #endif /* OBJ_COFF */
80 
81 #ifdef OBJ_ELF
82 
83 #define TARGET_FORMAT (target_big_endian ? "elf32-mcore-big" : "elf32-mcore-little")
84 
85 #define ELF_TC_SPECIAL_SECTIONS \
86   { ".ctors",	SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE }, \
87   { ".dtors",	SHT_PROGBITS,	SHF_ALLOC + SHF_WRITE }, \
88 /* Other special sections not generated by the assembler: .reginfo,
89    .liblist, .conflict, .gptab, .got, .dynamic, .rel.dyn.  */
90 
91 /* When relaxing, we need to emit various relocs we otherwise wouldn't.  */
92 #define TC_FORCE_RELOCATION(fix) mcore_force_relocation (fix)
93 extern int mcore_force_relocation PARAMS ((struct fix *));
94 
95 #define obj_fix_adjustable(fixP) mcore_fix_adjustable (fixP)
96 extern boolean mcore_fix_adjustable PARAMS ((struct fix *));
97 
98 #endif /* OBJ_ELF */
99 
100 #ifndef TARGET_FORMAT
101 # error No target format specified.
102 #endif
103 
104 #include "write.h"        /* For definition of fixS */
105 
106 extern void      md_begin            PARAMS ((void));
107 extern void      md_assemble         PARAMS ((char *));
108 extern symbolS * md_undefined_symbol PARAMS ((char *));
109 extern void      md_mcore_end        PARAMS ((void));
110 extern char *    md_atof             PARAMS ((int, char *, int *));
111 extern int       md_parse_option     PARAMS ((int, char *));
112 extern void      md_show_usage       PARAMS ((FILE *));
113 extern void      md_create_short_jump
114   PARAMS ((char *, addressT, addressT, fragS *, symbolS *));
115 extern void      md_create_long_jump
116   PARAMS ((char *, addressT, addressT, fragS *, symbolS *));
117 extern void      md_convert_frag               PARAMS ((bfd *, segT, fragS *));
118 extern int       md_apply_fix3                 PARAMS ((fixS *, valueT *, segT));
119 extern void      md_operand                    PARAMS ((expressionS *));
120 extern int       md_estimate_size_before_relax PARAMS ((fragS *, segT));
121 extern void      md_number_to_chars            PARAMS ((char *, valueT, int));
122 extern valueT    md_section_align              PARAMS ((segT, valueT));
123 extern long      md_pcrel_from_section         PARAMS ((fixS *, segT));
124 extern arelent * tc_gen_reloc                  PARAMS ((asection *, fixS *));
125 
126 #endif /* TC_MCORE */
127