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| author | Michael Olbrich <m.olbrich@pengutronix.de> | 2017-05-25 13:06:04 +0200 |
|---|---|---|
| committer | Michael Olbrich <m.olbrich@pengutronix.de> | 2017-05-26 08:35:49 +0200 |
| commit | 792f9f6992d802bc2ef15b86bdb3544341143df7 (patch) | |
| tree | 780a3a5d11b671864e05a15f277b1120eca7b70a /scripts | |
| parent | fb026d2ab1c6645d4a7c1198f7c86e25f9790a3f (diff) | |
| download | ptxdist-792f9f6992d802bc2ef15b86bdb3544341143df7.tar.gz ptxdist-792f9f6992d802bc2ef15b86bdb3544341143df7.tar.xz | |
ptxd_make_00-init: cache the output of ptxd_cross_cc_v
It's always the same and calling the compiler several times has a
measurable impact on the startup time.
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/lib/ptxd_make_00-init.sh | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/scripts/lib/ptxd_make_00-init.sh b/scripts/lib/ptxd_make_00-init.sh index a55846042..0ea48be80 100644 --- a/scripts/lib/ptxd_make_00-init.sh +++ b/scripts/lib/ptxd_make_00-init.sh @@ -76,8 +76,15 @@ export -f ptxd_cross_cc # run cross-gcc with flags and -v # ptxd_cross_cc_v() { - echo 'int main(void){return 0;}' | \ - ptxd_cross_cc -x c -o /dev/null -v - 2>&1 + local cache="${PTXDIST_TEMPDIR}/ptxd_cross_cc_v" + if [ -e "${cache}" ]; then + cat "${cache}" + else + local tmp="$(mktemp "${cache}.XXXXXX")" + echo 'int main(void){return 0;}' | \ + ptxd_cross_cc -x c -o /dev/null -v - 2>&1 | tee "${tmp}" + mv "${tmp}" "${cache}" + fi } export -f ptxd_cross_cc_v |