From: Nick Clifton <nickc@redhat.com>
Date: Thu, 3 May 2007 15:55:38 +0000 (+0000)
Subject: PR gas/3041
X-Git-Tag: binutils-2_18-branchpoint~881
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=22184a77bedbe9a50b48f0bc50ff1f8898699a39;p=external%2Fbinutils.git

PR gas/3041
* gas/config/tc-m68k.c (relaxable_symbol): Do not relax weak symbols.
    (tc_gen_reloc): Adjust the addend of relocs against weak symbols.
     (md_apply_fix): Put zero values into the frags referencing weak symbols.
* bfd/aoutx.h (swap_std_reloc_out): Treat relocs against weak symbols in the same way as relocs against external symbols.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 1c00088..00ae68e 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,10 @@
+2007-05-03  Vincent Riviere  <vincent.riviere@freesbee.fr>
+	    Nick Clifton  <nickc@redhat.com>
+
+	PR gas/3041
+	* aoutx.h (swap_std_reloc_out): Treat relocs against weak symbols
+	in the same way as relocs against external symbols.
+
 2007-05-02  Alan Modra  <amodra@bigpond.net.au>
 
 	* elf.c (assign_file_positions_for_load_sections): Set sh_offset
diff --git a/bfd/aoutx.h b/bfd/aoutx.h
index 98d5213..09331aa 100644
--- a/bfd/aoutx.h
+++ b/bfd/aoutx.h
@@ -1952,7 +1952,10 @@ NAME (aout, swap_std_reloc_out) (bfd *abfd,
 
   if (bfd_is_com_section (output_section)
       || bfd_is_abs_section (output_section)
-      || bfd_is_und_section (output_section))
+      || bfd_is_und_section (output_section)
+      /* PR gas/3041  a.out relocs against weak symbols
+	 must be treated as if they were against externs.  */
+      || (sym->flags & BSF_WEAK))
     {
       if (bfd_abs_section_ptr->symbol == sym)
 	{
diff --git a/gas/ChangeLog b/gas/ChangeLog
index f0a4faa..3a38e5e 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,12 @@
+2007-05-03  Vincent Riviere  <vincent.riviere@freesbee.fr>
+	    Nick Clifton  <nickc@redhat.com>
+
+	PR gas/3041
+	* config/tc-m68k.c (relaxable_symbol): Do not relax weak symbols.
+	(tc_gen_reloc): Adjust the addend of relocs against weak symbols.
+	(md_apply_fix): Put zero values into the frags referencing weak
+	symbols.
+
 2007-05-02  Alan Modra  <amodra@bigpond.net.au>
 
 	PR 4448
diff --git a/gas/config/tc-m68k.c b/gas/config/tc-m68k.c
index fedbafc..dd95139 100644
--- a/gas/config/tc-m68k.c
+++ b/gas/config/tc-m68k.c
@@ -1,6 +1,6 @@
 /* tc-m68k.c -- Assemble for the m68k family
    Copyright 1987, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999,
-   2000, 2001, 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
+   2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
 
    This file is part of GAS, the GNU Assembler.
 
@@ -1059,7 +1059,9 @@ tc_m68k_fix_adjustable (fixS *fixP)
 
 #define get_reloc_code(SIZE,PCREL,OTHER) NO_RELOC
 
-#define relaxable_symbol(symbol) 1
+/* PR gas/3041 Weak symbols are not relaxable
+   because they must be treated as extern.  */
+#define relaxable_symbol(symbol)   (!(S_IS_WEAK (symbol)))
 
 #endif /* OBJ_ELF */
 
@@ -1153,6 +1155,13 @@ tc_gen_reloc (asection *section ATTRIBUTE_UNUSED, fixS *fixp)
 #ifndef OBJ_ELF
   if (fixp->fx_pcrel)
     reloc->addend = fixp->fx_addnumber;
+  else if (OUTPUT_FLAVOR == bfd_target_aout_flavour
+	   && fixp->fx_addsy
+	   && S_IS_WEAK (fixp->fx_addsy)
+	   && ! bfd_is_und_section (S_GET_SEGMENT (fixp->fx_addsy)))
+    /* PR gas/3041 Adjust addend in order to force bfd_install_relocation()
+       to put a zero value into frags referencing a weak symbol.  */
+    reloc->addend = - S_GET_VALUE (fixp->fx_addsy);
   else
     reloc->addend = 0;
 #else
@@ -4692,6 +4701,13 @@ md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
 	S_SET_WEAK (fixP->fx_addsy);
       return;
     }
+#elif defined(OBJ_AOUT)
+  /* PR gas/3041 Always put zero values into frags referencing a weak symbol.  */
+  if (fixP->fx_addsy && S_IS_WEAK (fixP->fx_addsy))
+    {
+      memset (buf, 0, fixP->fx_size);
+      return;
+    }
 #endif
 
   if (fixP->fx_r_type == BFD_RELOC_VTABLE_INHERIT