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[Xen-changelog] [xen master] shim: don't let build modify shim.config

commit 8717e7417cebeae162fd61ea4cbdcdd422748f08
Author:     Juergen Gross <jgross@xxxxxxxx>
AuthorDate: Fri Apr 20 17:47:55 2018 +0200
Commit:     Wei Liu <wei.liu2@xxxxxxxxxx>
CommitDate: Mon Apr 23 14:30:46 2018 +0100

    shim: don't let build modify shim.config
    Currently building the shim will modify shim.config in case some config
    option was added or modified in the hypervisor.
    Avoid that by copying shim.config to an intermediate file instead.
    Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
    Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>
    Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>
 tools/firmware/xen-dir/Makefile | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/tools/firmware/xen-dir/Makefile b/tools/firmware/xen-dir/Makefile
index a7e69ae777..84648c3faf 100644
--- a/tools/firmware/xen-dir/Makefile
+++ b/tools/firmware/xen-dir/Makefile
@@ -41,16 +41,12 @@ linkfarm.stamp: $(DEP_DIRS) $(DEP_FILES) FORCE
 $(D): linkfarm.stamp
        $(MAKE) -C $(D)/xen distclean
-.PHONY: shim-%config
-shim-%config: $(D) FORCE
-       $(MAKE) -C $(D)/xen $*config \
-               XEN_CONFIG_EXPERT=y \
-               KCONFIG_CONFIG=$(CURDIR)/shim.config
-xen-shim: $(D) shim-olddefconfig
-       $(MAKE) -C $(D)/xen build \
-               XEN_CONFIG_EXPERT=y \
-               KCONFIG_CONFIG=$(CURDIR)/shim.config
+$(D)/xen/.config: shim.config $(D)
+       cp $< $@
+       $(MAKE) -C $(@D) olddefconfig XEN_CONFIG_EXPERT=y
+xen-shim: $(D)/xen/.config
+       $(MAKE) -C $(<D) build XEN_CONFIG_EXPERT=y
        ln -sf $(D)/xen/xen $@
        ln -sf $(D)/xen/xen-syms $@-syms
generated by git-patchbot for /home/xen/git/xen.git#master

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