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linux-yocto: depend on libgcc for aarch64 

Make aarch aarch64 kernel depend on libgcc.

In arch/arm64/Makefile, it adds LIBGCC to libs-y:

LIBGCC          := $(shell $(CC) $(KBUILD_CFLAGS) -print-libgcc-file-name)
libs-y          += $(LIBGCC)

In file Makefile in top directory, libs-y is assigned to to var
KBUILD_VMLINUX_MAIN. It uses script link-vmlinux.sh to link vmlinux.o,
and when execute function vmlinux_link() in link-vmlinux.sh,
KBUILD_VMLINUX_MAIN is passed to ${LD}.

If build without libgcc, the value of LIBGCC is just libgcc.a without
parent directory. linux-yocto fails to build:

|   LD      vmlinux.o
| aarch64-poky-linux-ld.bfd: cannot find libgcc.a: No such file or directory

Add libgcc to aarch64 kernel dependency.

(From OE-Core rev: 69ab638adcd8d30f35bb863254d9b112ad12b925)

Signed-off-by: Kai Kang <kai.kang@windriver.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Kai Kang 2014-12-18 16:50:57 +08:00 committed by Richard Purdie
parent 2ca18705bc
commit 28ba4d349e
1 changed files with 1 additions and 0 deletions
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1
meta/recipes-kernel/linux/linux-yocto.inc
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@ -7,6 +7,7 @@ LIC_FILES_CHKSUM = "file://COPYING;md5=d7810fab7487fb0aad327b76f1be7cd7"
INC_PR = "r4"
DEPENDS += "xz-native bc-native"
DEPENDS_append_aarch64 = " libgcc"
# A KMACHINE is the mapping of a yocto $MACHINE to what is built
# by the kernel. This is typically the branch that should be built,