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PATCH: PR binutils/13196: readelf floating point exception


We should check zero address size in display_debug_aranges.  I
checked in this as an obvious fix.

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  <>
+	PR binutils/13196
+	* dwarf.c (display_debug_aranges): Check zero address size.
 2011-09-15  H.J. Lu  <>
 	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.  */

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