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scripts: fix link-vmlinux.sh bash-ism

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While building linux with dash shell:
  LINK    vmlinux
trap: SIGHUP: bad trap
/src/linux-4.0/Makefile:933: recipe for target 'vmlinux' failed
make[1]: *** [vmlinux] Error 1

See the following document for behavior of posix shell trap instruction:
http://pubs.opengroup.org/onlinepubs/000095399/utilities/trap.html

Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sylvain BERTRAND <sylvain.bertrand@gmail.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>
This commit is contained in:
Sylvain BERTRAND 2015-05-07 00:36:04 +00:00 committed by Michal Marek
parent ee4eb20dbc
commit ab160dbbc4
1 changed files with 14 additions and 2 deletions
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16
scripts/link-vmlinux.sh
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@ -111,7 +111,6 @@ sortextable()
}
# Delete output files in case of error
trap cleanup SIGHUP SIGINT SIGQUIT SIGTERM ERR
cleanup()
{
rm -f .old_version
@ -124,6 +123,20 @@ cleanup()
rm -f vmlinux.o
}
on_exit()
{
if [ $? -ne 0 ]; then
cleanup
fi
}
trap on_exit EXIT
on_signals()
{
exit 1
}
trap on_signals HUP INT QUIT TERM
#
#
# Use "make V=1" to debug this script
@ -231,7 +244,6 @@ if [ -n "${CONFIG_KALLSYMS}" ]; then
if ! cmp -s System.map .tmp_System.map; then
echo >&2 Inconsistent kallsyms data
echo >&2 Try "make KALLSYMS_EXTRA_PASS=1" as a workaround
cleanup
exit 1
fi
fi