[gold patch] Don't allocate space in file for BSS sections

[Cary Coutant]

In a relocatable link, gold is allocating file space for BSS sections.
This patch avoids that by testing for SHT_NOBITS when updating the
file offset.

Tested on x86_64. OK to apply?

-cary

gold/
        * layout.cc (Layout::set_relocatable_section_offsets): Don't
        allocate space in file for BSS sections.
-------------- next part --------------
gold/
	* layout.cc (Layout::set_relocatable_section_offsets): Don't
	allocate space in file for BSS sections.


commit 54024611e11e68d6107ed2e9f46839b1e892c116
Author: Cary Coutant <ccoutant@google.com>
Date:   Fri Apr 12 16:49:21 2013 -0700

    Don't allocate space in file for bss sections.

diff --git a/gold/layout.cc b/gold/layout.cc
index 8b88deaa..f2dc6da 100644
--- a/gold/layout.cc
+++ b/gold/layout.cc
@@ -3594,7 +3594,8 @@ Layout::set_relocatable_section_offsets(Output_data* file_header,
 	(*p)->set_address(0);
       (*p)->set_file_offset(off);
       (*p)->finalize_data_size();
-      off += (*p)->data_size();
+      if ((*p)->type() != elfcpp::SHT_NOBITS)
+	off += (*p)->data_size();
 
       (*p)->set_out_shndx(*pshndx);
       ++*pshndx;