1 /* This file is tc-arm.h
2 Copyright (C) 1994, 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc.
3 Contributed by Richard Earnshaw (rwe@pegasus.esprit.ec.org)
4 Modified by David Taylor (dtaylor@armltd.co.uk)
6 This file is part of GAS, the GNU Assembler.
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)
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.
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
25 #ifndef TARGET_BYTES_BIG_ENDIAN
26 #define TARGET_BYTES_BIG_ENDIAN 0
29 #define WORKING_DOT_WORD
31 #define COFF_MAGIC ARMMAGIC
32 #define TARGET_ARCH bfd_arch_arm
34 #define AOUT_MACHTYPE 0
46 #define LITTLE_ENDIAN 1234
47 #define BIG_ENDIAN 4321
51 # define TARGET_FORMAT "a.out-riscix"
52 #elif defined TE_LINUX
53 # define ARM_BI_ENDIAN
54 # define TARGET_FORMAT "a.out-arm-linux"
55 #elif defined TE_NetBSD
56 # define TARGET_FORMAT "a.out-arm-netbsd"
58 # define ARM_BI_ENDIAN
59 # define TARGET_FORMAT \
60 (target_big_endian ? "a.out-arm-big" : "a.out-arm-little")
65 #define TARGET_FORMAT "aif"
68 #if defined OBJ_COFF || defined OBJ_ELF
69 # define ARM_BI_ENDIAN
71 # define TC_VALIDATE_FIX(fixP, segType, Label) \
72 if (arm_validate_fix (fixP)) add_symbolP = fixP->fx_addsy
73 extern boolean arm_validate_fix PARAMS ((struct fix *));
78 # define TC_FORCE_RELOCATION(x) ((x)->fx_r_type == BFD_RELOC_RVA)
80 # define TARGET_FORMAT (target_big_endian ? "epoc-pe-arm-big" : "epoc-pe-arm-little")
82 # define TARGET_FORMAT (target_big_endian ? "pe-arm-big" : "pe-arm-little")
85 # define TARGET_FORMAT (target_big_endian ? "coff-arm-big" : "coff-arm-little")
90 # define TARGET_FORMAT elf32_arm_target_format()
91 extern const char * elf32_arm_target_format PARAMS ((void));
93 # define TC_FORCE_RELOCATION(fixp) arm_force_relocation (fixp)
94 extern int arm_force_relocation PARAMS ((struct fix *));
97 #define md_convert_frag(b, s, f) {as_fatal (_("arm convert_frag\n"));}
99 #define md_cleanup() arm_cleanup ()
100 extern void arm_cleanup PARAMS ((void));
102 #define md_start_line_hook() arm_start_line_hook ()
103 extern void arm_start_line_hook PARAMS ((void));
105 #define tc_frob_label(S) arm_frob_label (S)
106 extern void arm_frob_label PARAMS ((struct symbol *));
108 /* We also need to mark assembler created symbols: */
109 #define tc_frob_fake_label(S) arm_frob_label (S)
111 /* NOTE: The fake label creation in stabs.c:s_stab_generic() has
112 deliberately not been updated to mark assembler created stabs
116 #define obj_fix_adjustable(fixP) arm_fix_adjustable (fixP)
118 #define obj_fix_adjustable(fixP) 0
121 /* We need to keep some local information on symbols. */
123 #define TC_SYMFIELD_TYPE unsigned int
124 #define ARM_GET_FLAG(s) ((s)->sy_tc)
125 #define ARM_SET_FLAG(s,v) ((s)->sy_tc |= (v))
126 #define ARM_RESET_FLAG(s,v) ((s)->sy_tc &= ~(v))
128 #define ARM_FLAG_THUMB (1 << 0) /* The symbol is a Thumb symbol rather than an Arm symbol. */
129 #define ARM_FLAG_INTERWORK (1 << 1) /* The symbol is attached to code that suppports interworking. */
130 #define THUMB_FLAG_FUNC (1 << 2) /* The symbol is attached to the start of a Thumb function. */
132 #define ARM_IS_THUMB(s) (ARM_GET_FLAG (s) & ARM_FLAG_THUMB)
133 #define ARM_IS_INTERWORK(s) (ARM_GET_FLAG (s) & ARM_FLAG_INTERWORK)
134 #define THUMB_IS_FUNC(s) (ARM_GET_FLAG (s) & THUMB_FLAG_FUNC)
136 #define ARM_SET_THUMB(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_THUMB) : ARM_RESET_FLAG (s, ARM_FLAG_THUMB))
137 #define ARM_SET_INTERWORK(s,t) ((t) ? ARM_SET_FLAG (s, ARM_FLAG_INTERWORK) : ARM_RESET_FLAG (s, ARM_FLAG_INTERWORK))
138 #define THUMB_SET_FUNC(s,t) ((t) ? ARM_SET_FLAG (s, THUMB_FLAG_FUNC) : ARM_RESET_FLAG (s, THUMB_FLAG_FUNC))
141 #define TC_FIX_TYPE PTR
142 #define TC_INIT_FIX_DATA(FIXP) ((FIXP)->tc_fix_data = NULL)
144 #define TC_START_LABEL(C,STR) \
145 (c == ':' || (c == '/' && arm_data_in_code ()))
146 int arm_data_in_code PARAMS ((void));
148 #define tc_canonicalize_symbol_name(str) \
149 arm_canonicalize_symbol_name (str);
150 char * arm_canonicalize_symbol_name PARAMS ((char *));
152 #define obj_adjust_symtab() arm_adjust_symtab ()
153 extern void arm_adjust_symtab PARAMS ((void));
156 #define obj_frob_symbol(sym, punt) armelf_frob_symbol (sym, punt)
159 #define tc_aout_pre_write_hook(x) {;} /* not used */
161 #define LISTING_HEADER "ARM GAS "
163 #define OPTIONAL_REGISTER_PREFIX '%'
165 #define md_operand(x)
167 #define TC_HANDLES_FX_DONE
169 #define MD_APPLY_FIX3
171 #define LOCAL_LABEL(name) (name[0] == '.' && (name[1] == 'L'))
172 #define LOCAL_LABELS_FB 1
174 /* This expression evaluates to false if the relocation is for a local object
175 for which we still want to do the relocation at runtime. True if we
176 are willing to perform this relocation while building the .o file.
177 This is only used for pcrel relocations, so GOTOFF does not need to be
178 checked here. I am not sure if some of the others are ever used with
179 pcrel, but it is easier to be safe than sorry. */
181 #define TC_RELOC_RTSYM_LOC_FIXUP(FIX) \
182 ( (FIX)->fx_r_type != BFD_RELOC_ARM_GOT12 \
183 && (FIX)->fx_r_type != BFD_RELOC_ARM_GOT32 \
184 && (FIX)->fx_r_type != BFD_RELOC_32)
186 #define TC_CONS_FIX_NEW cons_fix_new_arm
187 extern void cons_fix_new_arm PARAMS ((fragS *, int, int, expressionS *));
189 /* Don't allow symbols to be discarded on GOT related relocs,
191 #define tc_fix_adjustable(x) (\
192 ((x)->fx_r_type == BFD_RELOC_ARM_PLT32 \
193 || (x)->fx_r_type == BFD_RELOC_ARM_GOT32 \
194 || (x)->fx_r_type == BFD_RELOC_ARM_GOTOFF \
195 || S_IS_EXTERN ((x)->fx_addsy) \
196 || S_IS_WEAK ((x)->fx_addsy)) ? 0 : 1)
199 #define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
201 #define GLOBAL_OFFSET_TABLE_NAME "__GLOBAL_OFFSET_TABLE_"
204 /* end of tc-arm.h */