[PATCH][GOLD] Allow a target to fix up output section flags.

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

Hi Ian,

    This patch adds code to allow a target to fix up some flags in an
output section header.  We need this for ARM's EXIDX section, which is
required to have SHF_LINK_ORDER set.  We currently do not handle that
flag correctly in layout, it would be desirable to fix that in the
long run.  I have tested this for both ARM and X86_64 and I also added
a new test case.

-Doug

2011-04-05  Doug Kwan  <dougkwan@google.com>

        * arm.cc (Target_arm::do_adjust_output_section_flags): New
        method definition.
        * output.cc (Output_section::write_header): Allow a target to adjust
        output section flags.
        * target.h (Target::adjust_output_section_flags): New method definition.
        (Target::do_adjust_output_section_flags): Same.
        * testsuite/Makefile.am (arm_exidx_test): New test rules.
        * testsuite/Makefile.in: Regenerate.
        * testsuite/arm_exidx_test.s: New file.
        * testsuite/arm_exidx_test.sh: Same.

Attachment: patch-exidx.txt
Description: Text document