Instead of linking all compilation units again each time vmlinux_link is called, reuse vmlinux.o from modpost_link.
With x86_64 allyesconfig, vmlinux_link is called three times and reusing vmlinux.o reduces the build time ~38 seconds on my system (59% reduction in the time spent in vmlinux_link). Signed-off-by: Sami Tolvanen <[email protected]> --- scripts/link-vmlinux.sh | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/scripts/link-vmlinux.sh b/scripts/link-vmlinux.sh index d09ab4afbda4..c6cc4305950c 100755 --- a/scripts/link-vmlinux.sh +++ b/scripts/link-vmlinux.sh @@ -77,11 +77,8 @@ vmlinux_link() if [ "${SRCARCH}" != "um" ]; then objects="--whole-archive \ - ${KBUILD_VMLINUX_OBJS} \ + vmlinux.o \ --no-whole-archive \ - --start-group \ - ${KBUILD_VMLINUX_LIBS} \ - --end-group \ ${@}" ${LD} ${KBUILD_LDFLAGS} ${LDFLAGS_vmlinux} \ base-commit: b85051e755b0e9d6dd8f17ef1da083851b83287d -- 2.27.0.rc0.183.gde8f92d652-goog
