| 1 | /* tc-mn10300.h -- Header file for tc-mn10300.c.
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| 2 | Copyright 1996, 1997, 2000, 2001, 2002, 2003
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| 3 | Free Software Foundation, Inc.
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| 4 |
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| 5 | This file is part of GAS, the GNU Assembler.
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| 6 |
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| 7 | GAS is free software; you can redistribute it and/or modify
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| 8 | it under the terms of the GNU General Public License as published by
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| 9 | the Free Software Foundation; either version 2, or (at your option)
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| 10 | any later version.
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| 11 |
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| 12 | GAS is distributed in the hope that it will be useful,
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| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | GNU General Public License for more details.
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| 16 |
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| 17 | You should have received a copy of the GNU General Public License
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| 18 | along with GAS; see the file COPYING. If not, write to the Free
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| 19 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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| 20 | 02111-1307, USA. */
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| 21 |
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| 22 | #define TC_MN10300
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| 23 |
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| 24 | #define TARGET_BYTES_BIG_ENDIAN 0
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| 25 |
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| 26 | #ifndef BFD_ASSEMBLER
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| 27 | #error MN10300 support requires BFD_ASSEMBLER
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| 28 | #endif
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| 29 |
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| 30 | /* The target BFD architecture. */
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| 31 | #define TARGET_ARCH bfd_arch_mn10300
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| 32 |
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| 33 | #define TARGET_FORMAT "elf32-mn10300"
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| 34 |
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| 35 | /* No shared lib support, so we don't need to ensure externally
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| 36 | visible symbols can be overridden. */
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| 37 | #define EXTERN_FORCE_RELOC 0
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| 38 |
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| 39 | /* Do not adjust relocations involving symbols in code sections,
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| 40 | because it breaks linker relaxations. This could be fixed in the
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| 41 | linker, but this fix is simpler, and it pretty much only affects
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| 42 | object size a little bit. */
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| 43 | #define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
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| 44 | (((SEC)->flags & SEC_CODE) != 0 \
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| 45 | || ! SEG_NORMAL (SEC) \
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| 46 | || TC_FORCE_RELOCATION (FIX))
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| 47 |
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| 48 | /* We validate subtract arguments within tc_gen_reloc(), so don't
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| 49 | report errors at this point. */
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| 50 | #define TC_VALIDATE_FIX_SUB(FIX) 1
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| 51 |
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| 52 | /* Fixup debug sections since we will never relax them. Ideally, we
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| 53 | could do away with this and instead check every single fixup with
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| 54 | TC_FORCE_RELOCATION and TC_FORCE_RELOCATION_SUB_NAME, verifying
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| 55 | that the sections of the referenced symbols (and not the sections
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| 56 | in which the fixup appears) may be subject to relaxation. We'd
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| 57 | still have to check the section in which the fixup appears, because
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| 58 | we want to do some simplifications in debugging info that might
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| 59 | break in real code.
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| 60 |
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| 61 | Using the infrastructure in write.c to simplify subtraction fixups
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| 62 | would enable us to remove a lot of code from tc_gen_reloc(), but
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| 63 | this is simpler, faster, and produces almost the same effect.
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| 64 | Also, in the macros above, we can't check whether the fixup is in a
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| 65 | debugging section or not, so we have to use this for now. */
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| 66 | #define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC)
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| 67 |
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| 68 | #define md_operand(x)
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| 69 |
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| 70 | /* Permit temporary numeric labels. */
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| 71 | #define LOCAL_LABELS_FB 1
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| 72 |
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| 73 | /* We don't need to handle .word strangely. */
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| 74 | #define WORKING_DOT_WORD
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| 75 |
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| 76 | #define md_number_to_chars number_to_chars_littleendian
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| 77 |
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| 78 | /* Don't bother to adjust relocs. */
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| 79 | #define tc_fix_adjustable(FIX) 0
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| 80 | /* #define tc_fix_adjustable(FIX) mn10300_fix_adjustable (FIX) */
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| 81 | extern bfd_boolean mn10300_fix_adjustable PARAMS ((struct fix *));
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| 82 |
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| 83 | /* We do relaxing in the assembler as well as the linker. */
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| 84 | extern const struct relax_type md_relax_table[];
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| 85 | #define TC_GENERIC_RELAX_TABLE md_relax_table
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| 86 |
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| 87 | #define DWARF2_LINE_MIN_INSN_LENGTH 1
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