[GOLD][PATCH] Fix -z relro bugs

[Doug Kwan (éæå) <dougkwan at google dot com>]

Hi Ian,

   This patch fixes two problems related to the -z relro option.  The
first one is that .init_array, .fini_array and .preinit_array are not
handle properly in Layout::make_output_seciton.  The function only
force the relro flag if section type if SHT_PROGBITS.  The second
problem is that the ARM backend ignores the -z now option.  This patch
fixes this problem and also places the .got section at the RELRO
boundary.  This is tested on both ARM and x86_64.

-Doug


2012-03-15  Doug Kwan  <dougkwan@google.com>

        * arm.cc (Target_arm::got_section): Make .got section read-only
        if -z now is given. Also place .got section at RELRO boundary.
        * layout.cc (Layout::make_output_section): Fix a bug that causes
        .init_array, .fini_array and .preinit_array to be not included
        in the RELRO segment when -z now is given.

Attachment: patch.txt
Description: Text document