Add support for version 2 of the GNU Build Attribute note specification.

	* objcopy.c (merge_gnu_build_notes): Add support for version 2 notes.
	* readelf.c (print_gnu_build_attribute_name): Likewise.

1 files changed, 15 insertions, 7 deletions

diff --git a/binutils/readelf.c b/binutils/readelf.c
index edfe652..df7e8c3 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -481,7 +481,7 @@ print_symbol (signed int width, const char *symbol)
 
   if (width < 0)
     {
-      /* Keep the width positive.  This also helps.  */
+      /* Keep the width positive.  This helps the code below.  */
       width = - width;
       extra_padding = TRUE;
     }
@@ -17185,7 +17185,7 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
   const char * expected_types;
   const char * name = pnote->namedata;
   const char * text;
-  int          left;
+  signed int   left;
 
   if (name == NULL || pnote->namesz < 2)
     {
@@ -17194,6 +17194,16 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
       return FALSE;
     }
 
+  left = 20;
+
+  /* Version 2 of the spec adds a "GA" prefix to the name field.  */
+  if (name[0] == 'G' && name[1] == 'A')
+    {
+      printf ("GA");
+      name += 2;
+      left -= 2;
+    }
+
   switch ((name_type = * name))
     {
     case GNU_BUILD_ATTRIBUTE_TYPE_NUMERIC:
@@ -17201,6 +17211,7 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
     case GNU_BUILD_ATTRIBUTE_TYPE_BOOL_TRUE:
     case GNU_BUILD_ATTRIBUTE_TYPE_BOOL_FALSE:
       printf ("%c", * name);
+      left --;
       break;
     default:
       error (_("unrecognised attribute type in name field: %d\n"), name_type);
@@ -17208,7 +17219,6 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
       return FALSE;
     }
 
-  left = 19;
   ++ name;
   text = NULL;
 
@@ -17268,6 +17278,7 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
       else
 	{
 	  static char tmpbuf [128];
+
 	  error (_("unrecognised byte in name field: %d\n"), * name);
 	  sprintf (tmpbuf, _("<unknown:_%d>"), * name);
 	  text = tmpbuf;
@@ -17278,10 +17289,7 @@ print_gnu_build_attribute_name (Elf_Internal_Note * pnote)
     }
 
   if (text)
-    {
-      printf ("%s", text);
-      left -= strlen (text);
-    }
+    left -= printf ("%s", text);
 
   if (strchr (expected_types, name_type) == NULL)
     warn (_("attribute does not have an expected type (%c)\n"), name_type);