Replace cat with echo, which should be a builtin function
for most shells. Avoiding to spawn 'cat' for every syscall
entry can save time when generating linux_syscall_numbers.h:
$ time ./regen.sh
Before:
real 0m24.642s
user 0m1.263s
sys 0m7.135s
After:
real 0m0.130s
user 0m0.241s
sys 0m0.056s
Signed-off-by: Jan Stancek <jstan...@redhat.com>
---
testcases/kernel/include/regen.sh | 16 ++++++----------
1 file changed, 6 insertions(+), 10 deletions(-)
diff --git a/testcases/kernel/include/regen.sh
b/testcases/kernel/include/regen.sh
index eebac0f67308..9efc4f17cf88 100755
--- a/testcases/kernel/include/regen.sh
+++ b/testcases/kernel/include/regen.sh
@@ -71,11 +71,9 @@ for arch in $(cat "${srcdir}/order") ; do
if [ $# -eq 0 ] ; then
err "invalid line found: $line"
fi
- cat <<-EOF
- # ifndef ${nr}
- # define ${nr} $*
- # endif
- EOF
+ echo "# ifndef ${nr}"
+ echo "# define ${nr} $*"
+ echo "# endif"
done < "${srcdir}/${arch}.in"
echo "#endif"
echo
@@ -97,11 +95,9 @@ echo "/* Common stubs */"
echo "#define __LTP__NR_INVALID_SYSCALL -1" >> "${output_pid}"
for nr in $(awk '{print $1}' "${srcdir}/"*.in | sort -u) ; do
nr="__NR_${nr}"
- cat <<-EOF
- # ifndef ${nr}
- # define ${nr} __LTP__NR_INVALID_SYSCALL
- # endif
- EOF
+ echo "# ifndef ${nr}"
+ echo "# define ${nr} __LTP__NR_INVALID_SYSCALL"
+ echo "# endif"
done
echo "#endif"
) >> "${output_pid}._footer"
--
1.8.3.1
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