X-Git-Url: https://git.libre-soc.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-mn10300.h;h=d7162d497578426ed892c49efcdd4539c40bbc6a;hb=ea1562b345338540cf9a3c8fa28fbcb6da78fd3e;hp=c09ddad6723247a98b6c2799739e84b6becf770c;hpb=2ee563b53258d390d7446e90a67f465d504ae44c;p=binutils-gdb.git

diff --git a/gas/config/tc-mn10300.h b/gas/config/tc-mn10300.h
index c09ddad6723..d7162d49757 100644
--- a/gas/config/tc-mn10300.h
+++ b/gas/config/tc-mn10300.h
@@ -1,5 +1,6 @@
 /* tc-mn10300.h -- Header file for tc-mn10300.c.
-   Copyright 1996, 1997, 2000, 2001 Free Software Foundation, Inc.
+   Copyright 1996, 1997, 2000, 2001, 2002, 2003, 2004
+   Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -26,19 +27,68 @@
  #error MN10300 support requires BFD_ASSEMBLER
 #endif
 
+#define DIFF_EXPR_OK
+#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
+
+#define TC_RELOC_RTSYM_LOC_FIXUP(FIX)				\
+  ((FIX)->fx_r_type != BFD_RELOC_32_PLT_PCREL			\
+   && (FIX)->fx_r_type != BFD_RELOC_MN10300_GOT32		\
+   && (FIX)->fx_r_type != BFD_RELOC_32_GOT_PCREL		\
+   && ((FIX)->fx_addsy == NULL					\
+       || (! S_IS_EXTERNAL ((FIX)->fx_addsy)			\
+	   && ! S_IS_WEAK ((FIX)->fx_addsy)			\
+	   && S_IS_DEFINED ((FIX)->fx_addsy)			\
+	   && ! S_IS_COMMON ((FIX)->fx_addsy))))
+
+#define md_parse_name(name, exprP, nextcharP) \
+    mn10300_parse_name ((name), (exprP), (nextcharP))
+int mn10300_parse_name PARAMS ((char const *, expressionS *, char *));
+
+#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP) \
+     mn10300_cons_fix_new ((FRAG), (OFF), (LEN), (EXP))
+void mn10300_cons_fix_new PARAMS ((fragS *, int, int, expressionS *));
+
+/* This is used to construct expressions out of @GOTOFF, @PLT and @GOT
+   symbols.  The relocation type is stored in X_md.  */
+#define O_PIC_reloc O_md1
+
 /* The target BFD architecture.  */
 #define TARGET_ARCH bfd_arch_mn10300
 
+#ifdef TE_LINUX
+#define TARGET_FORMAT "elf32-am33lin"
+#else
 #define TARGET_FORMAT "elf32-mn10300"
+#endif
 
-/* For fixup and relocation handling.  */
-#define TC_FORCE_RELOCATION(fixp) mn10300_force_relocation (fixp)
-extern int mn10300_force_relocation PARAMS ((struct fix *));
-
-#define obj_fix_adjustable(fixP) mn10300_fix_adjustable (fixP)
-extern boolean mn10300_fix_adjustable PARAMS ((struct fix *));
 
-/* Fixup debug sections since we will never relax them.  */
+/* 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)
@@ -52,7 +102,9 @@ extern boolean mn10300_fix_adjustable PARAMS ((struct fix *));
 #define md_number_to_chars number_to_chars_littleendian
 
 /* Don't bother to adjust relocs.  */
-#define tc_fix_adjustable(FIX) 0
+/* #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[];