From: Alan Modra <amodra@gmail.com>
Date: Wed, 16 Apr 2014 02:17:13 +0000 (+0930)
Subject: fill ppc476 fixup area
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=40fd06d18832d52c9ab08914d8d5428ca68e5726;p=binutils-gdb.git

fill ppc476 fixup area

Stops false positive warnings from scanner.

	* elf32-ppc.c (ppc_elf_relocate_section): Fill 476 fixup area
	with "ba 0" rather than zeros.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 55d4828cc6a..99285f3a605 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,8 @@
+2014-04-16  Alan Modra  <amodra@gmail.com>
+
+	* elf32-ppc.c (ppc_elf_relocate_section): Fill 476 fixup area
+	with "ba 0" rather than zeros.
+
 2014-04-15  Marcus Shawcroft  <marcus.shawcroft@arm.com>
 
 	* (elfNN_aarch64_tls_relax): Fix instruction mask.
diff --git a/bfd/elf32-ppc.c b/bfd/elf32-ppc.c
index 8492732d9e3..ae68b5de206 100644
--- a/bfd/elf32-ppc.c
+++ b/bfd/elf32-ppc.c
@@ -9225,8 +9225,20 @@ ppc_elf_relocate_section (bfd *output_bfd,
 
       relax_info = elf_section_data (input_section)->sec_info;
       if (relax_info->workaround_size != 0)
-	memset (contents + input_section->size - relax_info->workaround_size,
-		0, relax_info->workaround_size);
+	{
+	  bfd_byte *p;
+	  unsigned int n;
+	  bfd_byte fill[4];
+
+	  bfd_put_32 (input_bfd, BA, fill);
+	  p = contents + input_section->size - relax_info->workaround_size;
+	  n = relax_info->workaround_size >> 2;
+	  while (n--)
+	    {
+	      memcpy (p, fill, 4);
+	      p += 4;
+	    }
+	}
 
       /* The idea is: Replace the last instruction on a page with a
 	 branch to a patch area.  Put the insn there followed by a