ar P support

This patch extends "ar P" to allow creation of normal (as distinct
from thin) archives with full path names.

	PR 452
	PR 25104
bfd/
	* archive.c (normalize): Return file unchanged when
	BFD_ARCHIVE_FULL_PATH.
	(_bfd_construct_extended_name_table): Pass abfd, the output
	bfd, to normalize.
	(_bfd_archive_bsd44_construct_extended_name_table): Likewise.
	* bfd.c (struct bfd): Make flags a full flagword.
	(BFD_ARCHIVE_FULL_PATH): Define.
	* bfd-in2.h: Regenerate.
binutils/
	* ar.c (write_archive): Set BFD_ARCHIVE_FULL_PATH.
	* doc/binutils.texi (extract from archive): Mention
	restrictions when extracting from archives with full paths.
	(ar P): Update to current P support.
	(ar -X32_64): Fix spelling.

4 files changed, 29 insertions, 6 deletions

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 429e423caa8..f71c9aa846d 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,15 @@
+2019-10-21  Alan Modra  <amodra@gmail.com>
+
+	PR 452
+	* archive.c (normalize): Return file unchanged when
+	BFD_ARCHIVE_FULL_PATH.
+	(_bfd_construct_extended_name_table): Pass abfd, the output
+	bfd, to normalize.
+	(_bfd_archive_bsd44_construct_extended_name_table): Likewise.
+	* bfd.c (struct bfd): Make flags a full flagword.
+	(BFD_ARCHIVE_FULL_PATH): Define.
+	* bfd-in2.h: Regenerate.
+
 2019-10-20  John David Anglin  <danglin@gcc.gnu.org>
 
 	* elf32-hppa.c (elf32_hppa_size_dynamic_sections): Provide 8-byte
diff --git a/bfd/archive.c b/bfd/archive.c
index ccc09ad49f2..6b7a78ccd97 100644
--- a/bfd/archive.c
+++ b/bfd/archive.c
@@ -1299,6 +1299,9 @@ normalize (bfd *abfd, const char *file)
   const char *last;
   char *copy;
 
+  if (abfd->flags & BFD_ARCHIVE_FULL_PATH)
+    return file;
+
   first = file + strlen (file) - 1;
   last = first + 1;
 
@@ -1326,8 +1329,10 @@ normalize (bfd *abfd, const char *file)
 
 #else
 static const char *
-normalize (bfd *abfd ATTRIBUTE_UNUSED, const char *file)
+normalize (bfd *abfd, const char *file)
 {
+  if (abfd->flags & BFD_ARCHIVE_FULL_PATH)
+    return file;
   return lbasename (file);
 }
 #endif
@@ -1562,7 +1567,7 @@ _bfd_construct_extended_name_table (bfd *abfd,
 	  continue;
 	}
 
-      normal = normalize (current, current->filename);
+      normal = normalize (abfd, current->filename);
       if (normal == NULL)
 	return FALSE;
 
@@ -1643,7 +1648,7 @@ _bfd_construct_extended_name_table (bfd *abfd,
 	}
       else
 	{
-	  normal = normalize (current, filename);
+	  normal = normalize (abfd, filename);
 	  if (normal == NULL)
 	    return FALSE;
 	}
@@ -1714,7 +1719,7 @@ _bfd_archive_bsd44_construct_extended_name_table (bfd *abfd,
        current != NULL;
        current = current->archive_next)
     {
-      const char *normal = normalize (current, current->filename);
+      const char *normal = normalize (abfd, current->filename);
       int has_space = 0;
       unsigned int len;
 
diff --git a/bfd/bfd-in2.h b/bfd/bfd-in2.h
index 1c468dc68b6..30b195a6cf9 100644
--- a/bfd/bfd-in2.h
+++ b/bfd/bfd-in2.h
@@ -6498,7 +6498,7 @@ struct bfd
   ENUM_BITFIELD (bfd_direction) direction : 2;
 
   /* Format_specific flags.  */
-  flagword flags : 20;
+  flagword flags;
 
   /* Values that may appear in the flags field of a BFD.  These also
      appear in the object_flags field of the bfd_target structure, where
@@ -6585,6 +6585,9 @@ struct bfd
   /* Use the ELF STT_COMMON type in this BFD.  */
 #define BFD_USE_ELF_STT_COMMON  0x80000
 
+  /* Put pathnames into archives (non-POSIX).  */
+#define BFD_ARCHIVE_FULL_PATH  0x100000
+
   /* Flags bits to be saved in bfd_preserve_save.  */
 #define BFD_FLAGS_SAVED \
   (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \
diff --git a/bfd/bfd.c b/bfd/bfd.c
index b3078eaa525..94e9f27e9d0 100644
--- a/bfd/bfd.c
+++ b/bfd/bfd.c
@@ -92,7 +92,7 @@ CODE_FRAGMENT
 .  ENUM_BITFIELD (bfd_direction) direction : 2;
 .
 .  {* Format_specific flags.  *}
-.  flagword flags : 20;
+.  flagword flags;
 .
 .  {* Values that may appear in the flags field of a BFD.  These also
 .     appear in the object_flags field of the bfd_target structure, where
@@ -179,6 +179,9 @@ CODE_FRAGMENT
 .  {* Use the ELF STT_COMMON type in this BFD.  *}
 .#define BFD_USE_ELF_STT_COMMON  0x80000
 .
+.  {* Put pathnames into archives (non-POSIX).  *}
+.#define BFD_ARCHIVE_FULL_PATH  0x100000
+.
 .  {* Flags bits to be saved in bfd_preserve_save.  *}
 .#define BFD_FLAGS_SAVED \
 .  (BFD_IN_MEMORY | BFD_COMPRESS | BFD_DECOMPRESS | BFD_LINKER_CREATED \