[PATCH] scripts: fix link-vmlinux.sh bash-ism

Sylvain BERTRAND
2014-12-29T16:35:02Z

Chocked while compiling linux with dash shell instead of bash shell.
See:
http://pubs.opengroup.org/onlinepubs/000095399/utilities/trap.html

Cc: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Sylvain BERTRAND <sylvain.bertrand@gmail.com>
---
--- a/scripts/link-vmlinux.sh 2014-12-29 15:10:29.436431249 +0000
+++ b/scripts/link-vmlinux.sh 2014-12-29 16:23:06.010853608 +0000
@@ -111,7 +111,6 @@
}

# Delete output files in case of error
-trap cleanup SIGHUP SIGINT SIGQUIT SIGTERM ERR
cleanup()
{
rm -f .old_version
@@ -124,6 +123,20 @@
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 ! 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