From: H.J. Lu <hjl.tools@gmail.com>
Date: Sun, 18 Sep 2011 16:50:17 +0000 (+0000)
Subject: Check zero address size.
X-Git-Tag: binutils-2_22-branchpoint~31
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b3681d67e43b07454eeb8b23030ea84012929ac9;p=platform%2Fupstream%2Fbinutils.git

Check zero address size.

2011-09-18  H.J. Lu  <hongjiu.lu@intel.com>

	PR binutils/13196
	* dwarf.c (display_debug_aranges): Check zero address size.
---

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 144dbff..8af899b 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,8 @@
+2011-09-18  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR binutils/13196
+	* dwarf.c (display_debug_aranges): Check zero address size.
+
 2011-09-15  H.J. Lu  <hongjiu.lu@intel.com>
 
 	PR binutils/13180
diff --git a/binutils/dwarf.c b/binutils/dwarf.c
index 776f775..1ee0e33 100644
--- a/binutils/dwarf.c
+++ b/binutils/dwarf.c
@@ -4215,6 +4215,13 @@ display_debug_aranges (struct dwarf_section *section,
 
       address_size = arange.ar_pointer_size + arange.ar_segment_size;
 
+      if (address_size == 0)
+	{
+	  error (_("Invalid address size in %s section!\n"),
+		 section->name);
+	  break;
+	}
+
       /* The DWARF spec does not require that the address size be a power
 	 of two, but we do.  This will have to change if we ever encounter
 	 an uneven architecture.  */