Display null bytes in DWARF debug info

binutils/

	PR binutils/14420
	* dwarf.c (process_abbrev_section): Add attribute terminator.
	Warn missing section terminator.
	(get_FORM_name): Special check for 0 value.
	(get_AT_name): Likewise.
	(process_debug_info): Display zero abbrev number.  Check
	attribute terminator.

binutils/testsuite/

	PR binutils/14420
	* binutils-all/i386/compressed-1a.d: Updated.
	* binutils-all/objdump.W: Likewise.
	* binutils-all/readelf.wa: Likewise.
	* binutils-all/x86-64/compressed-1a.d: Likewise.

gas/testsuite/

	PR binutils/14420
	* gas/elf/dwarf2-1.d: Updated.
	* gas/elf/dwarf2-2.d: Likwise.
	* gas/i386/dw2-compress-1.d: Likwise.

4 files changed, 19 insertions, 0 deletions

diff --git a/gas/testsuite/ChangeLog b/gas/testsuite/ChangeLog
index 2601cc1..b9635ac 100644
--- a/gas/testsuite/ChangeLog
+++ b/gas/testsuite/ChangeLog
@@ -1,3 +1,10 @@
+2012-08-02  H.J. Lu  <hongjiu.lu@intel.com>
+
+	PR binutils/14420
+	* gas/elf/dwarf2-1.d: Updated.
+	* gas/elf/dwarf2-2.d: Likwise.
+	* gas/i386/dw2-compress-1.d: Likwise.
+
 2012-08-01  James Lemke  <jwlemke@codesourcery.com>
 
 	* gas/cfi/cfi-ppc-1.d: Allow for code alignment of 2 or 4.
diff --git a/gas/testsuite/gas/elf/dwarf2-1.d b/gas/testsuite/gas/elf/dwarf2-1.d
index ff0ff74..1a6b0ca 100644
--- a/gas/testsuite/gas/elf/dwarf2-1.d
+++ b/gas/testsuite/gas/elf/dwarf2-1.d
@@ -30,6 +30,7 @@ Contents of the .[z]?debug_info section:
     <4b>   DW_AT_name        : int	
     <4f>   DW_AT_byte_size   : 4	
     <50>   DW_AT_encoding    : 5	\(signed\)
+ <1><51>: Abbrev Number: 0
 
 Raw dump of debug contents of section .[z]?debug_line:
 
@@ -85,6 +86,7 @@ Contents of the .[z]?debug_abbrev section:
     DW_AT_name         DW_FORM_string
     DW_AT_producer     DW_FORM_string
     DW_AT_language     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
    2      DW_TAG_subprogram    \[no children\]
     DW_AT_external     DW_FORM_flag
     DW_AT_decl_file    DW_FORM_data1
@@ -94,8 +96,10 @@ Contents of the .[z]?debug_abbrev section:
     DW_AT_low_pc       DW_FORM_addr
     DW_AT_high_pc      DW_FORM_addr
     DW_AT_frame_base   DW_FORM_block1
+    DW_AT value: 0     DW_FORM value: 0
    3      DW_TAG_base_type    \[no children\]
     DW_AT_name         DW_FORM_string
     DW_AT_byte_size    DW_FORM_data1
     DW_AT_encoding     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
 
diff --git a/gas/testsuite/gas/elf/dwarf2-2.d b/gas/testsuite/gas/elf/dwarf2-2.d
index 2feafa6..a463acc 100644
--- a/gas/testsuite/gas/elf/dwarf2-2.d
+++ b/gas/testsuite/gas/elf/dwarf2-2.d
@@ -30,6 +30,7 @@ Contents of the .[z]?debug_info section:
     <4b>   DW_AT_name        : int	
     <4f>   DW_AT_byte_size   : 4	
     <50>   DW_AT_encoding    : 5	\(signed\)
+ <1><51>: Abbrev Number: 0
 
 Raw dump of debug contents of section .[z]?debug_line:
 
@@ -85,6 +86,7 @@ Contents of the .[z]?debug_abbrev section:
     DW_AT_name         DW_FORM_string
     DW_AT_producer     DW_FORM_string
     DW_AT_language     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
    2      DW_TAG_subprogram    \[no children\]
     DW_AT_external     DW_FORM_flag
     DW_AT_decl_file    DW_FORM_data1
@@ -94,8 +96,10 @@ Contents of the .[z]?debug_abbrev section:
     DW_AT_low_pc       DW_FORM_addr
     DW_AT_high_pc      DW_FORM_addr
     DW_AT_frame_base   DW_FORM_block1
+    DW_AT value: 0     DW_FORM value: 0
    3      DW_TAG_base_type    \[no children\]
     DW_AT_name         DW_FORM_string
     DW_AT_byte_size    DW_FORM_data1
     DW_AT_encoding     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
 
diff --git a/gas/testsuite/gas/i386/dw2-compress-1.d b/gas/testsuite/gas/i386/dw2-compress-1.d
index 06057ca..64e2559 100644
--- a/gas/testsuite/gas/i386/dw2-compress-1.d
+++ b/gas/testsuite/gas/i386/dw2-compress-1.d
@@ -29,6 +29,7 @@ Contents of the .zdebug_info section:
     <4b>   DW_AT_name        : int	
     <4f>   DW_AT_byte_size   : 4	
     <50>   DW_AT_encoding    : 5	\(signed\)
+ <1><51>: Abbrev Number: 0
 
 Contents of the .zdebug_abbrev section:
 
@@ -40,6 +41,7 @@ Contents of the .zdebug_abbrev section:
     DW_AT_name         DW_FORM_string
     DW_AT_producer     DW_FORM_string
     DW_AT_language     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
    2      DW_TAG_subprogram    \[no children\]
     DW_AT_external     DW_FORM_flag
     DW_AT_decl_file    DW_FORM_data1
@@ -49,10 +51,12 @@ Contents of the .zdebug_abbrev section:
     DW_AT_low_pc       DW_FORM_addr
     DW_AT_high_pc      DW_FORM_addr
     DW_AT_frame_base   DW_FORM_block1
+    DW_AT value: 0     DW_FORM value: 0
    3      DW_TAG_base_type    \[no children\]
     DW_AT_name         DW_FORM_string
     DW_AT_byte_size    DW_FORM_data1
     DW_AT_encoding     DW_FORM_data1
+    DW_AT value: 0     DW_FORM value: 0
 
 Raw dump of debug contents of section .zdebug_line: