From: Alan Modra <amodra@gmail.com>
Date: Sat, 20 Oct 2012 08:27:13 +0000 (+0000)
Subject: 	* compress.c: Reinstate 2012-10-19 change.
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=38b774d28cc047b9b1838ed533e86a149b6f0a9b;p=binutils-gdb.git

	* compress.c: Reinstate 2012-10-19 change.
	(bfd_get_full_section_contents): Don't free unless we alloc.
	Use proper decompress size.  Delete some vars, rename others.
---

diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index 76d91c2d15d..95d6c693ba0 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,9 @@
+2012-10-20  Alan Modra  <amodra@gmail.com>
+
+	* compress.c: Reinstate 2012-10-19 change.
+	(bfd_get_full_section_contents): Don't free unless we alloc.
+	Use proper decompress size.  Delete some vars, rename others.
+
 2012-10-19  Tom Tromey  <tromey@redhat.com>
 
 	* compress.c: Revert previous patch.
diff --git a/bfd/compress.c b/bfd/compress.c
index 17b5928a026..294bfd3e9df 100644
--- a/bfd/compress.c
+++ b/bfd/compress.c
@@ -161,11 +161,9 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
   bfd_byte *p = *ptr;
 #ifdef HAVE_ZLIB_H
   bfd_boolean ret;
-  bfd_size_type compressed_size;
-  bfd_size_type uncompressed_size;
-  bfd_size_type rawsize;
+  bfd_size_type save_size;
+  bfd_size_type save_rawsize;
   bfd_byte *compressed_buffer;
-  bfd_byte *uncompressed_buffer;
 #endif
 
   if (abfd->direction != write_direction && sec->rawsize != 0)
@@ -199,45 +197,44 @@ bfd_get_full_section_contents (bfd *abfd, sec_ptr sec, bfd_byte **ptr)
       return FALSE;
 #else
       /* Read in the full compressed section contents.  */
-      uncompressed_size = sec->size;
-      compressed_size = sec->compressed_size;
-      compressed_buffer = (bfd_byte *) bfd_malloc (compressed_size);
+      compressed_buffer = (bfd_byte *) bfd_malloc (sec->compressed_size);
       if (compressed_buffer == NULL)
 	return FALSE;
-      rawsize = sec->rawsize;
+      save_rawsize = sec->rawsize;
+      save_size = sec->size;
       /* Clear rawsize, set size to compressed size and set compress_status
 	 to COMPRESS_SECTION_NONE.  If the compressed size is bigger than
 	 the uncompressed size, bfd_get_section_contents will fail.  */
       sec->rawsize = 0;
-      sec->size = compressed_size;
+      sec->size = sec->compressed_size;
       sec->compress_status = COMPRESS_SECTION_NONE;
       ret = bfd_get_section_contents (abfd, sec, compressed_buffer,
-				      0, compressed_size);
+				      0, sec->compressed_size);
       /* Restore rawsize and size.  */
-      sec->rawsize = rawsize;
-      sec->size = uncompressed_size;
+      sec->rawsize = save_rawsize;
+      sec->size = save_size;
       sec->compress_status = DECOMPRESS_SECTION_SIZED;
       if (!ret)
 	goto fail_compressed;
 
-      uncompressed_buffer = (bfd_byte *) bfd_malloc (uncompressed_size);
-      if (uncompressed_buffer == NULL)
+      if (p == NULL)
+	p = (bfd_byte *) bfd_malloc (sz);
+      if (p == NULL)
 	goto fail_compressed;
 
-      if (!decompress_contents (compressed_buffer, compressed_size,
-				uncompressed_buffer, uncompressed_size))
+      if (!decompress_contents (compressed_buffer, sec->compressed_size, p, sz))
 	{
 	  bfd_set_error (bfd_error_bad_value);
-	  free (uncompressed_buffer);
+	  if (p != *ptr)
+	    free (p);
 	fail_compressed:
 	  free (compressed_buffer);
 	  return FALSE;
 	}
 
       free (compressed_buffer);
-      sec->contents = uncompressed_buffer;
-      sec->compress_status = COMPRESS_SECTION_DONE;
-      /* Fall thru */
+      *ptr = p;
+      return TRUE;
 #endif
 
     case COMPRESS_SECTION_DONE: