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authorSascha Hauer <s.hauer@pengutronix.de>2012-10-04 17:11:17 -0700
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-10-13 05:38:36 +0900
commitf15977883584e7b52832518c3fef115957d3203b (patch)
treeba1bf3db57ede8d2bb58217e1c5836954adadd1b /scripts
parent605843502b0573c0c865b13f770d971aadaf0c41 (diff)
kbuild: make: fix if_changed when command contains backslashes
commit c353acba28fb3fa1fd05fd6b85a9fc7938330f9c upstream. The call if_changed mechanism does not work when the command contains backslashes. This basically is an issue with lzo and bzip2 compressed kernels. The compressed binaries do not contain the uncompressed image size, so these use size_append to append the size. This results in backslashes in the executed command. With this if_changed always detects a change in the command and rebuilds the compressed image even if nothing has changed. Fix this by escaping backslashes in make-cmd Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by: Jan Luebbe <jlu@pengutronix.de> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Bernhard Walle <bernhard@bwalle.de> Cc: Michal Marek <mmarek@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/Kbuild.include2
1 files changed, 1 insertions, 1 deletions
diff --git a/scripts/Kbuild.include b/scripts/Kbuild.include
index 6a3ee981931d..afa44595f348 100644
--- a/scripts/Kbuild.include
+++ b/scripts/Kbuild.include
@@ -209,7 +209,7 @@ endif
# >$< substitution to preserve $ when reloading .cmd file
# note: when using inline perl scripts [perl -e '...$$t=1;...']
# in $(cmd_xxx) double $$ your perl vars
-make-cmd = $(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1)))))
+make-cmd = $(subst \\,\\\\,$(subst \#,\\\#,$(subst $$,$$$$,$(call escsq,$(cmd_$(1))))))
# Find any prerequisites that is newer than target or that does not exist.
# PHONY targets skipped in both cases.