[GOLD][PATCH] Added support for R_ARM_V4BX relocation

[Doug Kwan (關振德)]

I cannot approve but I have some comments.  The sort of works but I am
not sure if we want it to be always enabled.  Can you add
ld-compatible command line switches at least to turn this on and off?

Adding interworking support is not difficult as all the
infrastructures are in place.  If I were you, I would create a new sub
class V4bx_stub of the Stub class to represent the v4bx stubs.  You
need to add one new stub template as far as I can see.  I would also
add a vector in Stub_table to hold these V4bx_stub since there are
only a small fixed number of possible stubs  The stub table class
already handles both relocation stubs and cortex-A8 stub.  So it is
quite straight forward to add another support stub type.  You can look
at arm_branch_common to see how we redirect a branch to a stub.

-Doug

2010/1/11 Viktor Kutuzov <vkutuzov@accesssoftek.com>:
> Hello everyone,
>
> Please find attached a patch that adds a support for R_ARM_V4BX relocation.
>
> It supports the instruction replacement only, no interworking yet.
> The interworking for R_ARM_V4BX is to be discussed.
>
> Best regards,
> Viktor
>
> * gold/arm.cc: Added support for R_ARM_V4BX relocation