[PATCH][GOLD] Enable use of stubs in ARM branches.

[=?big5?b?RG91ZyBLd2FuICjD9q62vHcp?= <dougkwan at google dot com>]

Hi,

    This patch enables use of stubs in ARM branches for mode-switching
and extending branch ranges.   The THUMB counterpart of this will come
in another patch.

-Doug

2009-11-10  Doug Kwan  <dougkwan@google.com>

        * arm.cc (Target_arm::may_use_arm_nop): New method definition.
        (Arm_relocate_functions::arm_branch_common): Change method defintion
        in class definition to a method declaration and update list of formal
        parameters.
        (Arm_relocate_functions::plt32, Arm_relocate_functions::call,
        Arm_relocation_functions::jump24): Adjust call to
        Arm_relocate_functions::arm_branch_common.  Update list of formal
        parameters.
        (Arm_relocate_functions::xpc25): New method definition.
        (Arm_relocate_functions::arm_branch_common): Move method defintion
        out from class definition.  Use stubs for mode-switching and extending
        branch ranges.
        (Target_arm::Relocate::relocate): Handle weakly-undefined symbols
        specially.  Change code to enable use of stubs in ARM branches.

Attachment: patch.txt
Description: Text document