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linux-yocto: depend on libgcc for nios2 

Make nios2 kernel depend on libgcc.

In arch/nios2/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
| nios2-poky-linux-ld.bfd: cannot find libgcc.a: No such file or directory

Add libgcc to nios2 kernel dependency.

(From OE-Core rev: d3ccab5bb717da57dcaaeb1993ae0f790ce45dcb)

Signed-off-by: Marek Vasut <marex@denx.de>
Signed-off-by: Ross Burton <ross.burton@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Marek Vasut 2015-09-20 00:43:13 +02:00 committed by Richard Purdie
parent 8efff24775
commit ba1e0eef99
1 changed files with 4 additions and 0 deletions
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4
meta/recipes-kernel/linux/linux-yocto.inc
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@ -11,6 +11,10 @@ DEPENDS_append_aarch64 = " libgcc"
KERNEL_CC_append_aarch64 = " ${TOOLCHAIN_OPTIONS}"
KERNEL_LD_append_aarch64 = " ${TOOLCHAIN_OPTIONS}"
DEPENDS_append_nios2 = " libgcc"
KERNEL_CC_append_nios2 = " ${TOOLCHAIN_OPTIONS}"
KERNEL_LD_append_nios2 = " ${TOOLCHAIN_OPTIONS}"
# 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,
# and it can be specific to the machine or shared