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| author | Jan Luebbe <jlu@pengutronix.de> | 2012-10-18 15:14:21 +0200 |
|---|---|---|
| committer | Michael Olbrich <m.olbrich@pengutronix.de> | 2012-10-25 00:27:22 +0200 |
| commit | 1e7dd9c2f9c708060786d1f9ffc7caac8b270887 (patch) | |
| tree | 777ffd57020d6ab5b54e059081bf72228e0adf26 /scripts/wrapper | |
| parent | 0c9cb9718a5fabf8ae98e3dfd1c1fefdd6a367b5 (diff) | |
| download | ptxdist-1e7dd9c2f9c708060786d1f9ffc7caac8b270887.tar.gz ptxdist-1e7dd9c2f9c708060786d1f9ffc7caac8b270887.tar.xz | |
wrapper: introduce a wrapper for cc, c++ and ld
This is used to optionally pass compiler and
linker options (such as for hardening).
Signed-off-by: Jan Luebbe <jlu@pengutronix.de>
Signed-off-by: Michael Olbrich <m.olbrich@pengutronix.de>
Diffstat (limited to 'scripts/wrapper')
| -rwxr-xr-x | scripts/wrapper/c++-wrapper | 3 | ||||
| -rwxr-xr-x | scripts/wrapper/cc-wrapper | 50 | ||||
| -rwxr-xr-x | scripts/wrapper/ld-wrapper | 19 |
3 files changed, 72 insertions, 0 deletions
diff --git a/scripts/wrapper/c++-wrapper b/scripts/wrapper/c++-wrapper new file mode 100755 index 000000000..ad97e9a28 --- /dev/null +++ b/scripts/wrapper/c++-wrapper @@ -0,0 +1,3 @@ +#!/bin/sh + +exec $0.real "$@" diff --git a/scripts/wrapper/cc-wrapper b/scripts/wrapper/cc-wrapper new file mode 100755 index 000000000..8f16b75d5 --- /dev/null +++ b/scripts/wrapper/cc-wrapper @@ -0,0 +1,50 @@ +#!/bin/sh + +. ${PTXDIST_PLATFORMCONFIG} + +LINKING=1 +FORTIFY=1 +STDLIB=1 + +for ARG in "$@"; do + if [[ "${ARG}" = "-c" ]]; then + LINKING=0 + fi + if [[ "${ARG}" =~ -D_FORTIFY_SOURCE(=|$) ]]; then + FORTIFY=0 + fi + if [[ "${ARG}" = "-nostdlib" || + "${ARG}" = "-ffreestanding" ]]; then + STDLIB=0 + fi +done + +ARG_LIST="" + +if [[ "${LINKING}" = 1 ]]; then + if [[ "${PTXCONF_TARGET_HARDEN_RELRO}" = "y" ]]; then + ARG_LIST+="-Wl,-z,relro " + fi + if [[ "${PTXCONF_TARGET_HARDEN_BINDNOW}" = "y" ]]; then + ARG_LIST+="-Wl,-z,now " + fi + if [[ "${PTXCONF_TARGET_LINKER_GNUHASH}" = "y" ]]; then + ARG_LIST+="-Wl,--hash-style=gnu " + fi +fi + +if [[ "${FORTIFY}" = 1 ]]; then + if [[ "${PTXCONF_TARGET_HARDEN_FORTIFY}" = "y" ]]; then + ARG_LIST+="-D_FORTIFY_SOURCE=2 " + fi +fi + +if [[ "${STDLIB}" = 1 ]]; then + if [[ "${PTXCONF_TARGET_HARDEN_STACK}" = "y" ]]; then + ARG_LIST+="-fstack-protector --param=ssp-buffer-size=4 " + fi +fi + +#echo $0 $ARG_LIST "$@" >&2 + +exec $0.real $ARG_LIST "$@" diff --git a/scripts/wrapper/ld-wrapper b/scripts/wrapper/ld-wrapper new file mode 100755 index 000000000..f3f38054c --- /dev/null +++ b/scripts/wrapper/ld-wrapper @@ -0,0 +1,19 @@ +#!/bin/sh + +. ${PTXDIST_PLATFORMCONFIG} + +ARG_LIST="" + +if [ "${PTXCONF_TARGET_HARDEN_RELRO}" = "y" ]; then + ARG_LIST+="-z relro " +fi +if [ "${PTXCONF_TARGET_HARDEN_BINDNOW}" = "y" ]; then + ARG_LIST+="-z now " +fi +if [[ "${PTXCONF_TARGET_LINKER_GNUHASH}" = "y" ]]; then + ARG_LIST+="--hash-style=gnu " +fi + +#echo $0 $ARG_LIST "$@" >&2 + +exec $0.real $ARG_LIST "$@" |