1 /* tc-mn10300.h -- Header file for tc-mn10300.c.
2 Copyright 1996, 1997, 2000, 2001, 2002 Free Software Foundation, Inc.
4 This file is part of GAS, the GNU Assembler.
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 2, or (at your option)
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.
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
23 #define TARGET_BYTES_BIG_ENDIAN 0
26 #error MN10300 support requires BFD_ASSEMBLER
29 /* The target BFD architecture. */
30 #define TARGET_ARCH bfd_arch_mn10300
32 #define TARGET_FORMAT "elf32-mn10300"
34 /* No shared lib support, so we don't need to ensure externally
35 visible symbols can be overridden. */
36 #define EXTERN_FORCE_RELOC 0
38 /* For fixup and relocation handling. */
39 #define TC_FORCE_RELOCATION(fixp) mn10300_force_relocation (fixp)
40 extern int mn10300_force_relocation
PARAMS ((struct fix
*));
42 /* Do not adjust relocations involving symbols in code sections,
43 because it breaks linker relaxations. This could be fixed in the
44 linker, but this fix is simpler, and it pretty much only affects
45 object size a little bit. */
46 #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEG) \
48 || ((SEG)->flags & SEC_CODE) != 0)
50 /* We validate subtract arguments within tc_gen_reloc(), so don't
51 report errors at this point. */
52 #define TC_VALIDATE_FIX_SUB(FIX) 1
54 /* Fixup debug sections since we will never relax them. Ideally, we
55 could do away with this and instead check every single fixup with
56 TC_FORCE_RELOCATION and TC_FORCE_RELOCATION_SUB_NAME, verifying
57 that the sections of the referenced symbols (and not the sections
58 in which the fixup appears) may be subject to relaxation. We'd
59 still have to check the section in which the fixup appears, because
60 we want to do some simplifications in debugging info that might
63 Using the infrastructure in write.c to simplify subtraction fixups
64 would enable us to remove a lot of code from tc_gen_reloc(), but
65 this is simpler, faster, and produces almost the same effect.
66 Also, in the macros above, we can't check whether the fixup is in a
67 debugging section or not, so we have to use this for now. */
68 #define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC)
72 /* Permit temporary numeric labels. */
73 #define LOCAL_LABELS_FB 1
75 /* We don't need to handle .word strangely. */
76 #define WORKING_DOT_WORD
78 #define md_number_to_chars number_to_chars_littleendian
80 /* Don't bother to adjust relocs. */
81 #define tc_fix_adjustable(FIX) 0
82 /* #define tc_fix_adjustable(FIX) mn10300_fix_adjustable (FIX) */
83 extern bfd_boolean mn10300_fix_adjustable
PARAMS ((struct fix
*));
85 /* We do relaxing in the assembler as well as the linker. */
86 extern const struct relax_type md_relax_table
[];
87 #define TC_GENERIC_RELAX_TABLE md_relax_table
89 #define DWARF2_LINE_MIN_INSN_LENGTH 1