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Makefile: add --remove-destination to cp calls.

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This avoids overwriting the busybox binary (and bricking the system)
by following a symlink when busybox and other module both provide
a command with the same filename.

Signed-off-by: Daniel Pineda <daniel.pineda@puri.sm>
This commit is contained in:
Daniel Pineda 2023-02-21 14:15:25 -06:00
parent 17ac64bdf1
commit b51fda22c1
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GPG Key ID: 902C199C68C4B327
1 changed files with 3 additions and 3 deletions
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6
Makefile
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@ -234,7 +234,7 @@ define do-copy =
if cmp --quiet "$1" "$2" ; then \
echo "$(DATE) UNCHANGED $(1:$(pwd)/%=%)" ; \
fi ; \
cp -a "$1" "$2" ; \
cp -a --remove-destination "$1" "$2" ; \
)
@sha256sum "$(2:$(pwd)/%=%)"
endef
@ -415,7 +415,7 @@ $(call map, define_module, $(modules-y))
#
define install =
@-mkdir -p "$(dir $2)"
$(call do,INSTALL,$2,cp -a "$1" "$2")
$(call do,INSTALL,$2,cp -a --remove-destination "$1" "$2")
endef
#
@ -424,7 +424,7 @@ endef
#
define initrd_bin_add =
$(initrd_bin_dir)/$(notdir $1): $1
$(call do,INSTALL-BIN,$$(<:$(pwd)/%=%),cp -a "$$<" "$$@")
$(call do,INSTALL-BIN,$$(<:$(pwd)/%=%),cp -a --remove-destination "$$<" "$$@")
@$(CROSS)strip --preserve-dates "$$@" 2>&-; true
initrd_bins += $(initrd_bin_dir)/$(notdir $1)
endef