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kheaders: remove the last bashism to allow sh to run it

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commit 1463f74f492eea7191f0178e01f3d38371a48210 upstream.

'pushd' ... 'popd' is the last bash-specific code in this script.
One way to avoid it is to run the code in a sub-shell.

With that addressed, you can run this script with sh.

I replaced $(BASH) with $(CONFIG_SHELL), and I changed the hashbang
to #!/bin/sh.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Matthias Maennich <maennich@google.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Masahiro Yamada 2019-10-08 21:05:55 +09:00 committed by Greg Kroah-Hartman
parent 18f48708c3
commit 7caddaa9f8
2 changed files with 8 additions and 7 deletions
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2
kernel/Makefile
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@ -128,7 +128,7 @@ $(obj)/config_data.gz: $(KCONFIG_CONFIG) FORCE
$(obj)/kheaders.o: $(obj)/kheaders_data.tar.xz
quiet_cmd_genikh = CHK $(obj)/kheaders_data.tar.xz
cmd_genikh = $(BASH) $(srctree)/kernel/gen_kheaders.sh $@
cmd_genikh = $(CONFIG_SHELL) $(srctree)/kernel/gen_kheaders.sh $@
$(obj)/kheaders_data.tar.xz: FORCE
$(call cmd,genikh)

13
kernel/gen_kheaders.sh
View File

@ -1,4 +1,4 @@
#!/bin/bash
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# This script generates an archive consisting of kernel headers
@ -57,11 +57,12 @@ rm -rf $cpio_dir
mkdir $cpio_dir
if [ "$building_out_of_srctree" ]; then
pushd $srctree > /dev/null
for f in $dir_list
do find "$f" -name "*.h";
done | cpio --quiet -pd $cpio_dir
popd > /dev/null
(
cd $srctree
for f in $dir_list
do find "$f" -name "*.h";
done | cpio --quiet -pd $cpio_dir
)
fi
# The second CPIO can complain if files already exist which can happen with out