tree bff3436efa5ed57468f4fb300e54ddafae922b05
parent 6e936086bc71dff1083008e7e2d7c26bcdb6e930
author Michal Simek <michal.simek@xilinx.com> 1604494905 +0100
committer Michal Simek <michal.simek@xilinx.com> 1605865373 +0100

microblaze: Enable GCC garbage collector for full U-Boot

GCC's garbage collector works for Microblaze for quite a long time but none
has enabled it.
The same change has be done for example by commit fac4790491f6 ("arc:
Eliminate unused code and data with GCC's garbage collector").

Before:
   text	   data	    bss	    dec	    hex	filename
 588760	  33592	  39192	 661544	  a1828	u-boot

After:
   text	   data	    bss	    dec	    hex	filename
 504504	  32164	  38608	 575276	  8c72c	u-boot

Which saves almost 15% of memory footprint.

Also group symbols/functions to proper section.

Reported-by: Tom Rini <trini@konsulko.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>