/* tc-mn10300.h -- Header file for tc-mn10300.c.
- Copyright (C) 1996, 1997, 2000 Free Software Foundation, Inc.
+ Copyright 1996, 1997, 2000, 2001, 2002, 2003
+ Free Software Foundation, Inc.
This file is part of GAS, the GNU Assembler.
You should have received a copy of the GNU General Public License
along with GAS; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA
- 02111-1307, USA. */
+ 02111-1307, USA. */
#define TC_MN10300
#define TARGET_FORMAT "elf32-mn10300"
-/* For fixup and relocation handling. */
-#define TC_FORCE_RELOCATION(fixp) mn10300_force_relocation (fixp)
-extern int mn10300_force_relocation PARAMS ((struct fix *));
-
-#define TC_HANDLES_FX_DONE
-
-#define obj_fix_adjustable(fixP) mn10300_fix_adjustable (fixP)
-extern boolean mn10300_fix_adjustable PARAMS ((struct fix *));
-
-#define MD_APPLY_FIX3 md_apply_fix3
-
-/* Fixup debug sections since we will never relax them. */
+/* No shared lib support, so we don't need to ensure externally
+ visible symbols can be overridden. */
+#define EXTERN_FORCE_RELOC 0
+
+/* Do not adjust relocations involving symbols in code sections,
+ because it breaks linker relaxations. This could be fixed in the
+ linker, but this fix is simpler, and it pretty much only affects
+ object size a little bit. */
+#define TC_FORCE_RELOCATION_SUB_SAME(FIX, SEC) \
+ (((SEC)->flags & SEC_CODE) != 0 \
+ || ! SEG_NORMAL (SEC) \
+ || TC_FORCE_RELOCATION (FIX))
+
+/* We validate subtract arguments within tc_gen_reloc(), so don't
+ report errors at this point. */
+#define TC_VALIDATE_FIX_SUB(FIX) 1
+
+/* Fixup debug sections since we will never relax them. Ideally, we
+ could do away with this and instead check every single fixup with
+ TC_FORCE_RELOCATION and TC_FORCE_RELOCATION_SUB_NAME, verifying
+ that the sections of the referenced symbols (and not the sections
+ in which the fixup appears) may be subject to relaxation. We'd
+ still have to check the section in which the fixup appears, because
+ we want to do some simplifications in debugging info that might
+ break in real code.
+
+ Using the infrastructure in write.c to simplify subtraction fixups
+ would enable us to remove a lot of code from tc_gen_reloc(), but
+ this is simpler, faster, and produces almost the same effect.
+ Also, in the macros above, we can't check whether the fixup is in a
+ debugging section or not, so we have to use this for now. */
#define TC_LINKRELAX_FIXUP(seg) (seg->flags & SEC_ALLOC)
-
#define md_operand(x)
/* Permit temporary numeric labels. */
/* Don't bother to adjust relocs. */
#define tc_fix_adjustable(FIX) 0
+/* #define tc_fix_adjustable(FIX) mn10300_fix_adjustable (FIX) */
+extern bfd_boolean mn10300_fix_adjustable PARAMS ((struct fix *));
/* We do relaxing in the assembler as well as the linker. */
extern const struct relax_type md_relax_table[];
#define TC_GENERIC_RELAX_TABLE md_relax_table
-#define md_end() mn10300_finalize ()
-void mn10300_finalize PARAMS ((void));
-
#define DWARF2_LINE_MIN_INSN_LENGTH 1