Extend the assembler so that it can automatically generate GNU Build attribute notes if none are present in the input files.

gas	* as.c (flag_generate_build_notes): New variable.
	(show_usage): Add entry for --generate-missing-build-notes.
	(parse_args): Parse --generate-missing-build-notes.
	* as.h: Export flag_generate_build_notes.
	* symbols.c (save_symbol_name): Ensure that the name parameter is
	not NULL.
	* write.c (create_obj_attrs_section): Reformat.
	(create_note_reloc): New function - creates a relocation for a
	field in a GNU Build attribute note.
	(maybe_generate_build_notes): New function - created GNU Build
	attribute notes if none are present in the output file.
	(write_object_file): Call maybe_generate_build_notes.
	* configure.ac (--enable-generate-build-notes): New option.
	* NEWS: Announce the new feature.
	* doc/as.textinfo: Document the new option.
	* config.in: Regenerate.
	* configure: Regenerate.

binutils* readelf.c (is_32bit_abs_reloc): Support R_PARISC_DIR32 as a
	32-bit absolute reloc for the HPPA target.
	* testsuite/binutils-all/note-5.d: New test.
	* testsuite/binutils-all/note-5.s: Source file for new test.
	* testsuite/binutils-all/objcopy.exp: Run new test.

5 files changed, 36 insertions, 1 deletions

diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 702c0cf..3b98be4 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,11 @@
+2018-04-26  Nick Clifton  <nickc@redhat.com>
+
+	* readelf.c (is_32bit_abs_reloc): Support R_PARISC_DIR32 as a
+	32-bit absolute reloc for the HPPA target.
+	* testsuite/binutils-all/note-5.d: New test.
+	* testsuite/binutils-all/note-5.s: Source file for new test.
+	* testsuite/binutils-all/objcopy.exp: Run new test.
+
 2018-04-25  Christophe Lyon  <christophe.lyon@st.com>
 
 	* testsuite/binutils-all/elfedit-2.d: Accept arm*-*-uclinuxfdpiceabi.
diff --git a/binutils/readelf.c b/binutils/readelf.c
index e8e1b96..eecc05b 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -12305,7 +12305,8 @@ is_32bit_abs_reloc (Filedata * filedata, unsigned int reloc_type)
     case EM_OR1K:
       return reloc_type == 1; /* R_OR1K_32.  */
     case EM_PARISC:
-      return (reloc_type == 1 /* R_PARISC_DIR32.  */
+      return (reloc_type == 1 /* R_PARISC_DIR32.  */	      
+	      || reloc_type == 2 /* R_PARISC_DIR21L.  */
 	      || reloc_type == 41); /* R_PARISC_SECREL32.  */
     case EM_PJ:
     case EM_PJ_OLD:
diff --git a/binutils/testsuite/binutils-all/note-5.d b/binutils/testsuite/binutils-all/note-5.d
new file mode 100644
index 0000000..d3bef15
--- /dev/null
+++ b/binutils/testsuite/binutils-all/note-5.d
@@ -0,0 +1,11 @@
+#PROG: objcopy
+#as: --generate-missing-build-notes=yes
+#readelf: --notes --wide
+#name: assembler generated build notes
+#source: note-5.s
+
+#...
+Displaying notes found in: .gnu.build.attributes
+[ 	]+Owner[ 	]+Data size[ 	]+Description
+[ 	]+GA\$<version>3a1[ 	]+0x000000(08|10)[ 	]+OPEN[ 	]+Applies to region from 0 to 0x.. \(note_5.s\)
+#...
diff --git a/binutils/testsuite/binutils-all/note-5.s b/binutils/testsuite/binutils-all/note-5.s
new file mode 100644
index 0000000..4375b25
--- /dev/null
+++ b/binutils/testsuite/binutils-all/note-5.s
@@ -0,0 +1,14 @@
+	.text
+	.global note_5.s
+note_5.s:
+	.dc.l	2
+	.dc.l	4
+	.dc.l	6
+	.dc.l	8
+	.dc.l	8
+	.dc.l	8
+	.dc.l	8
+	.dc.l	8
+	.dc.l	8
+	.dc.l	8
+	
\ No newline at end of file
diff --git a/binutils/testsuite/binutils-all/objcopy.exp b/binutils/testsuite/binutils-all/objcopy.exp
index 2a2e757..3381236 100644
--- a/binutils/testsuite/binutils-all/objcopy.exp
+++ b/binutils/testsuite/binutils-all/objcopy.exp
@@ -1058,6 +1058,7 @@ if [is_elf_format] {
 	run_dump_test "note-3-32"
 	run_dump_test "note-4-32"
     }
+    run_dump_test "note-5"
 }
 
 run_dump_test "copy-2"