diff options
Diffstat (limited to 'meta/conf/distro/include/security_flags.inc')
| -rw-r--r-- | meta/conf/distro/include/security_flags.inc | 124 |
1 files changed, 39 insertions, 85 deletions
diff --git a/meta/conf/distro/include/security_flags.inc b/meta/conf/distro/include/security_flags.inc index 1c1e50bd3f..aaf04e9e59 100644 --- a/meta/conf/distro/include/security_flags.inc +++ b/meta/conf/distro/include/security_flags.inc @@ -1,117 +1,71 @@ -# Setup extra CFLAGS and LDFLAGS which have 'security' benefits. These +# Setup extra CFLAGS and LDFLAGS which have 'security' benefits. These # don't work universally, there are recipes which can't use one, the other # or both so a blacklist is maintained here. The idea would be over # time to reduce this list to nothing. # From a Yocto Project perspective, this file is included and tested -# in the DISTRO="poky-lsb" configuration. +# in the DISTRO="poky" configuration. + +GCCPIE ?= "--enable-default-pie" +# If static PIE is known to work well, GLIBCPIE="--enable-static-pie" can be set # _FORTIFY_SOURCE requires -O1 or higher, so disable in debug builds as they use # -O0 which then results in a compiler warning. -lcl_maybe_fortify = "${@base_conditional('DEBUG_BUILD','1','','-D_FORTIFY_SOURCE=2',d)}" +lcl_maybe_fortify ?= "${@oe.utils.conditional('DEBUG_BUILD','1','','-D_FORTIFY_SOURCE=2',d)}" # Error on use of format strings that represent possible security problems SECURITY_STRINGFORMAT ?= "-Wformat -Wformat-security -Werror=format-security" -SECURITY_CFLAGS ?= "-fstack-protector-strong -pie -fpie ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}" -SECURITY_NO_PIE_CFLAGS ?= "-fstack-protector-strong ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}" +# Inject pie flags into compiler flags if not configured with gcc itself +# especially useful with external toolchains +SECURITY_PIE_CFLAGS ?= "${@'' if '${GCCPIE}' else '-pie -fPIE'}" + +SECURITY_NOPIE_CFLAGS ?= "-no-pie -fno-PIE" + +SECURITY_STACK_PROTECTOR ?= "-fstack-protector-strong" -SECURITY_LDFLAGS ?= "-fstack-protector-strong -Wl,-z,relro,-z,now" -SECURITY_X_LDFLAGS ?= "-fstack-protector-strong -Wl,-z,relro" +SECURITY_CFLAGS ?= "${SECURITY_STACK_PROTECTOR} ${SECURITY_PIE_CFLAGS} ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}" +SECURITY_NO_PIE_CFLAGS ?= "${SECURITY_STACK_PROTECTOR} ${lcl_maybe_fortify} ${SECURITY_STRINGFORMAT}" + +SECURITY_LDFLAGS ?= "${SECURITY_STACK_PROTECTOR} -Wl,-z,relro,-z,now" +SECURITY_X_LDFLAGS ?= "${SECURITY_STACK_PROTECTOR} -Wl,-z,relro" # powerpc does not get on with pie for reasons not looked into as yet -SECURITY_CFLAGS_powerpc = "-fstack-protector-strong ${lcl_maybe_fortify}" -# Deal with ppc specific linker failures when using the cflags -SECURITY_CFLAGS_pn-dbus_powerpc = "" -SECURITY_CFLAGS_pn-dbus-ptest_powerpc = "" -SECURITY_CFLAGS_pn-libmatchbox_powerpc = "" +GCCPIE_powerpc = "" +GLIBCPIE_powerpc = "" +SECURITY_CFLAGS_remove_powerpc = "${SECURITY_PIE_CFLAGS}" +SECURITY_CFLAGS_pn-libgcc_powerpc = "" -# arm specific security flag issues -SECURITY_CFLAGS_pn-lttng-tools_arm = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-aspell = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-beecrypt = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-coreutils = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-cups = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-db = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-directfb = "${SECURITY_NO_PIE_CFLAGS}" SECURITY_CFLAGS_pn-glibc = "" -SECURITY_CFLAGS_pn-glibc-initial = "" -SECURITY_CFLAGS_pn-elfutils = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-enchant = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-expect = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-flac = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-gcc = "${SECURITY_NO_PIE_CFLAGS}" +SECURITY_CFLAGS_pn-glibc-testsuite = "" SECURITY_CFLAGS_pn-gcc-runtime = "" -SECURITY_CFLAGS_pn-gcc-sanitizers = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-gdb = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-gmp = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-gnutls = "${SECURITY_NO_PIE_CFLAGS}" SECURITY_CFLAGS_pn-grub = "" SECURITY_CFLAGS_pn-grub-efi = "" SECURITY_CFLAGS_pn-grub-efi-native = "" SECURITY_CFLAGS_pn-grub-efi-x86-native = "" SECURITY_CFLAGS_pn-grub-efi-i586-native = "" SECURITY_CFLAGS_pn-grub-efi-x86-64-native = "" -SECURITY_CFLAGS_pn-gstreamer1.0-plugins-bad = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-gstreamer1.0-plugins-good = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-harfbuzz = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-kexec-tools = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-iptables = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libaio = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libcap = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libgcc = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libid3tag = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libnewt-python = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libglu = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libpcap = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libpcre = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-libproxy = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-mesa = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-openssl = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-opensp = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-ppp = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python-pycurl = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python-smartpm = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python-numpy = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python3-numpy = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python3-pycairo = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-python3 = "${SECURITY_NO_PIE_CFLAGS}" -# Revert RPM to using internally supported values -SECURITY_CFLAGS_pn-rpm = "${lcl_maybe_fortify} -fstack-protector" -SECURITY_CFLAGS_pn-syslinux = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-slang = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-source-highlight = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-tcl = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-tiff = "${SECURITY_NO_PIE_CFLAGS}" -SECURITY_CFLAGS_pn-uclibc = "" -SECURITY_CFLAGS_pn-uclibc-initial = "" -SECURITY_CFLAGS_pn-valgrind = "" -SECURITY_CFLAGS_pn-zlib = "${SECURITY_NO_PIE_CFLAGS}" +SECURITY_CFLAGS_pn-mkelfimage_x86 = "" + +SECURITY_CFLAGS_pn-valgrind = "${SECURITY_NOPIE_CFLAGS}" +SECURITY_LDFLAGS_pn-valgrind = "" +SECURITY_CFLAGS_pn-sysklogd = "${SECURITY_NOPIE_CFLAGS}" +SECURITY_LDFLAGS_pn-sysklogd = "" # Recipes which fail to compile when elevating -Wformat-security to an error SECURITY_STRINGFORMAT_pn-busybox = "" -SECURITY_STRINGFORMAT_pn-console-tools = "" -SECURITY_STRINGFORMAT_pn-cmake = "" -SECURITY_STRINGFORMAT_pn-expect = "" SECURITY_STRINGFORMAT_pn-gcc = "" -SECURITY_STRINGFORMAT_pn-gettext = "" -SECURITY_STRINGFORMAT_pn-kexec-tools = "" -SECURITY_STRINGFORMAT_pn-oh-puzzles = "" -TARGET_CFLAGS_append_class-target = " ${SECURITY_CFLAGS}" +TARGET_CC_ARCH_append_class-target = " ${SECURITY_CFLAGS}" TARGET_LDFLAGS_append_class-target = " ${SECURITY_LDFLAGS}" -SECURITY_LDFLAGS_remove_pn-gcc-runtime = "-fstack-protector-strong" -SECURITY_LDFLAGS_remove_pn-glibc = "-fstack-protector-strong" -SECURITY_LDFLAGS_remove_pn-glibc-initial = "-fstack-protector-strong" -SECURITY_LDFLAGS_remove_pn-uclibc = "-fstack-protector-strong" -SECURITY_LDFLAGS_remove_pn-uclibc-initial = "-fstack-protector-strong" -SECURITY_LDFLAGS_pn-xf86-video-fbdev = "${SECURITY_X_LDFLAGS}" -SECURITY_LDFLAGS_pn-xf86-video-intel = "${SECURITY_X_LDFLAGS}" -SECURITY_LDFLAGS_pn-xf86-video-omapfb = "${SECURITY_X_LDFLAGS}" -SECURITY_LDFLAGS_pn-xf86-video-omap = "${SECURITY_X_LDFLAGS}" -SECURITY_LDFLAGS_pn-xf86-video-vesa = "${SECURITY_X_LDFLAGS}" -SECURITY_LDFLAGS_pn-xf86-video-vmware = "${SECURITY_X_LDFLAGS}" +SECURITY_STACK_PROTECTOR_pn-gcc-runtime = "" +SECURITY_STACK_PROTECTOR_pn-glibc = "" +SECURITY_STACK_PROTECTOR_pn-glibc-testsuite = "" +# All xorg module drivers need to be linked this way as well and are +# handled in recipes-graphics/xorg-driver/xorg-driver-common.inc SECURITY_LDFLAGS_pn-xserver-xorg = "${SECURITY_X_LDFLAGS}" -TARGET_CC_ARCH_append_pn-binutils = " ${SECURITY_CFLAGS} ${SELECTED_OPTIMIZATION}" +TARGET_CC_ARCH_append_pn-binutils = " ${SELECTED_OPTIMIZATION}" +TARGET_CC_ARCH_append_pn-gcc = " ${SELECTED_OPTIMIZATION}" +TARGET_CC_ARCH_append_pn-gdb = " ${SELECTED_OPTIMIZATION}" +TARGET_CC_ARCH_append_pn-perf = " ${SELECTED_OPTIMIZATION}" |