[lkml]   [2006]   [Feb]   [14]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
    Patch in this message
    SubjectRe: kbuild: fix make -jN with multiple targets with O=...
    Hello folks,

    This patch causes a ~95% increase in build time for the kernel. Before:
    4m21s after: 8m1.403s. Can we revert this until another approach is found?


    On Mon, Jan 16, 2006 at 09:10:55PM -0800, Linux Kernel Mailing List wrote:
    tree b918bb866edc339d51b2b71176265f6d424600e7
    parent 60f33b80443a3e7e79e2a3ddc625ab6246a61d3d
    author Sam Ravnborg <> Sun, 15 Jan 2006 20:02:31 +0100
    committer Sam Ravnborg <> Sun, 15 Jan 2006 20:02:31 +0100

    kbuild: fix make -jN with multiple targets with O=...

    The way multiple targets was handled with make O=...
    broke because for each high-level target make spawned
    a parallel make resulting in a broken build.
    Reported by Keith Owens <>

    Signed-off-by: Sam Ravnborg <>

    Makefile | 7 ++++---
    1 files changed, 4 insertions(+), 3 deletions(-)

    diff --git a/Makefile b/Makefile
    index deedaf7..b3dd9db 100644
    --- a/Makefile
    +++ b/Makefile
    @@ -106,12 +106,13 @@ KBUILD_OUTPUT := $(shell cd $(KBUILD_OUT
    $(if $(KBUILD_OUTPUT),, \
    $(error output directory "$(saved-output)" does not exist))

    +.PHONY: $(MAKECMDGOALS) cdbuilddir
    +$(MAKECMDGOALS) _all: cdbuilddir

    -$(filter-out _all,$(MAKECMDGOALS)) _all:
    $(if $(KBUILD_VERBOSE:1=),@)$(MAKE) -C $(KBUILD_OUTPUT) \
    - KBUILD_EXTMOD="$(KBUILD_EXTMOD)" -f $(CURDIR)/Makefile $@

    # Leave processing to above invocation of make
    skip-makefile := 1
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to
    More majordomo info at
    Please read the FAQ at
     \ /
      Last update: 2006-02-15 05:12    [W:0.038 / U:4.080 seconds]
    ©2003-2017 Jasper Spaans. hosted at Digital OceanAdvertise on this site