X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=gas%2Fconfig%2Ftc-mn10300.h;h=bf7ef6001d75caac8b47b8bfd60d0f3cf184da52;hb=97f50151221de0a023a8317559b1992a90f9cb8f;hp=ffcb227b0e0a14ecd391a0dc59dd01e825a1bc76;hpb=dc9e099fc0eced486ae2b49455c9da113c11f4ff;p=deliverable%2Fbinutils-gdb.git

diff --git a/gas/config/tc-mn10300.h b/gas/config/tc-mn10300.h
index ffcb227b0e..bf7ef6001d 100644
--- a/gas/config/tc-mn10300.h
+++ b/gas/config/tc-mn10300.h
@@ -1,11 +1,11 @@
 /* tc-mn10300.h -- Header file for tc-mn10300.c.
-   Copyright (C) 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1996-2016 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
    GAS is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2, or (at your option)
+   the Free Software Foundation; either version 3, or (at your option)
    any later version.
 
    GAS is distributed in the hope that it will be useful,
@@ -15,23 +15,79 @@
 
    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. */
+   Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
+   02110-1301, USA.  */
 
 #define TC_MN10300
 
 #define TARGET_BYTES_BIG_ENDIAN 0
 
-#ifndef BFD_ASSEMBLER
- #error MN10300 support requires BFD_ASSEMBLER
-#endif
+#define DIFF_EXPR_OK
+#define GLOBAL_OFFSET_TABLE_NAME "_GLOBAL_OFFSET_TABLE_"
+
+#define TC_FORCE_RELOCATION(FIX) mn10300_force_relocation (FIX)
+extern bfd_boolean mn10300_force_relocation (struct fix *);
+
+#define TC_FORCE_RELOCATION_LOCAL(FIX)			\
+  (!(FIX)->fx_pcrel					\
+   || (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	\
+   || TC_FORCE_RELOCATION (FIX))
+
+#define md_parse_name(NAME, EXPRP, MODE, NEXTCHARP) \
+    mn10300_parse_name ((NAME), (EXPRP), (MODE), (NEXTCHARP))
+int mn10300_parse_name (char const *, expressionS *, enum expr_mode, char *);
+
+#define TC_CONS_FIX_NEW(FRAG, OFF, LEN, EXP, RELOC)	\
+  mn10300_cons_fix_new ((FRAG), (OFF), (LEN), (EXP), (RELOC))
+void mn10300_cons_fix_new (fragS *, int, int, expressionS *,
+			   bfd_reloc_code_real_type);
+
+/* 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
+
+
+/* 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)			\
+   || (FIX)->fx_r_type == BFD_RELOC_MN10300_ALIGN \
+   || 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, SEG) 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_APPLY_FIX3
 #define md_operand(x)
 
 /* Permit temporary numeric labels.  */
@@ -42,9 +98,29 @@
 
 #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) mn10300_fix_adjustable (FIX)
+extern bfd_boolean mn10300_fix_adjustable (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 DWARF2_LINE_MIN_INSN_LENGTH 1
+
+/* The difference between same-section symbols may be affected by linker
+   relaxation, so do not resolve such expressions in the assembler.  */
+#define md_allow_local_subtract(l,r,s) mn10300_allow_local_subtract (l, r, s)
+extern bfd_boolean mn10300_allow_local_subtract (expressionS *, expressionS *, segT);
+
+#define RELOC_EXPANSION_POSSIBLE
+#define MAX_RELOC_EXPANSION 2
+
+#define TC_FRAG_TYPE bfd_boolean
+
+#define HANDLE_ALIGN(frag) mn10300_handle_align (frag)
+extern void mn10300_handle_align (fragS *);
+
+/* Only allow call frame debug info optimization when linker relaxation is
+   not enabled as otherwise we could generate the DWARF directives without
+   the relocs necessary to patch them up.  */
+#define md_allow_eh_opt (linkrelax == 0)