[oe-commits] [openembedded-core] branch master updated: kernel: make copying of crtsavres.o conditional

[git at git.openembedded.org]

This is an automated email from the git hooks/post-receive script.

rpurdie pushed a commit to branch master
in repository openembedded-core.

The following commit(s) were added to refs/heads/master by this push:
     new af58819  kernel: make copying of crtsavres.o conditional
af58819 is described below

commit af58819253a2d4526dc8871a17e1492bd1d92951
Author: Bruce Ashfield <bruce.ashfield at windriver.com>
AuthorDate: Tue Mar 6 13:11:17 2018 -0500

    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 at 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 at gmail.com>
            Signed-off-by: Michael Ellerman <mpe at 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]
    
    Signed-off-by: Bruce Ashfield <bruce.ashfield at windriver.com>
    Signed-off-by: Ross Burton <ross.burton at intel.com>
    Signed-off-by: Richard Purdie <richard.purdie at linuxfoundation.org>
---
 meta/classes/kernel.bbclass | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/meta/classes/kernel.bbclass b/meta/classes/kernel.bbclass
index 321c0a4..9bc0e41 100644
--- a/meta/classes/kernel.bbclass
+++ b/meta/classes/kernel.bbclass
@@ -466,8 +466,10 @@ do_shared_workdir () {
 	# arch/powerpc/lib/crtsavres.o which is present in
 	# KBUILD_LDFLAGS_MODULE, making it required to build external modules.
 	if [ ${ARCH} = "powerpc" ]; then
-		mkdir -p $kerneldir/arch/powerpc/lib/
-		cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
+		if [ -e arch/powerpc/lib/crtsavres.o ]; then
+			mkdir -p $kerneldir/arch/powerpc/lib/
+			cp arch/powerpc/lib/crtsavres.o $kerneldir/arch/powerpc/lib/crtsavres.o
+		fi
 	fi
 
 	if [ -d include/generated ]; then

-- 
To stop receiving notification emails like this one, please contact
the administrator of this repository.