diff options
Diffstat (limited to 'pkgs/build-support/cc-wrapper/add-hardening')
| -rw-r--r-- | pkgs/build-support/cc-wrapper/add-hardening | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/pkgs/build-support/cc-wrapper/add-hardening b/pkgs/build-support/cc-wrapper/add-hardening new file mode 100644 index 000000000000..08fdd52be08a --- /dev/null +++ b/pkgs/build-support/cc-wrapper/add-hardening @@ -0,0 +1,41 @@ +hardeningFlags=(fortify stackprotector pic strictoverflow format relro bindnow) +hardeningFlags+=("${hardeningEnable[@]}") +hardeningCFlags=() +hardeningLDFlags=() + +if [[ ! $hardeningDisable == "all" ]]; then + for flag in "${hardeningFlags[@]}" + do + if [[ ! "$hardeningDisable" =~ "$flag" ]]; then + case $flag in + fortify) + hardeningCFlags+=('-O2' '-D_FORTIFY_SOURCE=2') + ;; + stackprotector) + hardeningCFlags+=('-fstack-protector-strong') + ;; + pie) + hardeningCFlags+=('-fPIE' '-pie') + ;; + pic) + hardeningCFlags+=('-fPIC') + ;; + strictoverflow) + hardeningCFlags+=('-fno-strict-overflow') + ;; + format) + hardeningCFlags+=('-Wformat' '-Wformat-security' '-Werror=format-security') + ;; + relro) + hardeningLDFlags+=('-z relro') + ;; + bindnow) + hardeningLDFlags+=('-z now') + ;; + *) + echo "Hardening flag unknown: $flag" + ;; + esac + fi + done +fi |