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authorBruce Ashfield <bruce.ashfield@windriver.com>2018-03-06 13:11:17 -0500
committerRichard Purdie <richard.purdie@linuxfoundation.org>2018-03-08 15:28:04 -0800
commit128dd9ec601fab4d213ffe703a79b0e8814ad907 (patch)
tree1fd23341f22f0c719e68fbff27a695e7eb976ed0 /meta/recipes-core
parent0fa0baed74dfc1d0b4245fd7c552a55c12ce6b23 (diff)
downloadpoky-128dd9ec601fab4d213ffe703a79b0e8814ad907.tar.gz
kernel: make copying of crtsavres.o conditional
As of the 4.13 kernel, there are configuration + linker combinations that do not need (or build) crtsavres.o for ppc64 targets. The commit of interest is: commit efe0160cfd40a99c052a00e174787c1f4158a9cd Author: Nicholas Piggin <npiggin@gmail.com> Date: Fri May 12 01:56:52 2017 +1000 powerpc/64: Linker on-demand sfpr functions for modules For final link, the powerpc64 linker generates fpr save/restore functions on-demand, placing them in the .sfpr section. Starting with binutils 2.25, these can be provided for non-final links with --save-restore-funcs. Use that where possible for module links. This saves about 200 bytes per module (~60kB) on powernv defconfig build. Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> As such, our arch test for crtsavres.o is not enough, we add a secondary existence check before trying the copy. [YOCTO #12576] (From OE-Core rev: af58819253a2d4526dc8871a17e1492bd1d92951) Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com> Signed-off-by: Ross Burton <ross.burton@intel.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
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