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#!/bin/sh
set -e
COMPILING=false
FORTIFY=true
FPIE=true
HOST=false
LINKING=true
OPTIMIZE=false
PIE=true
STDLIB=true
ARG_LIST=""
LATE_ARG_LIST=""
if [ -z "${PTXDIST_PLATFORMCONFIG}" ]; then
. "$(dirname "$0")/env" || exit
fi
. ${PTXDIST_PLATFORMCONFIG}
wrapper_exec() {
PATH="$(echo "${PATH}" | sed "s;${PTXDIST_PATH_SYSROOT_HOST}/lib/wrapper:;;")"
if [ "${PTXDIST_VERBOSE}" = 1 -a -n "${PTXDIST_FD_LOGFILE}" ]; then
echo "wrapper: ${PTXDIST_CCACHE} ${0##*/} ${ARG_LIST} $* ${LATE_ARG_LIST}" >&${PTXDIST_FD_LOGFILE}
fi
exec ${PTXDIST_CCACHE} "${0%/*}/real/${0##*/}" ${ARG_LIST} "$@" ${LATE_ARG_LIST}
}
cc_check_args() {
for ARG in "$@"; do
case "${ARG}" in
-c)
LINKING=false
PIE=false
;;
-D_FORTIFY_SOURCE | -D_FORTIFY_SOURCE=*)
FORTIFY=false
;;
-nostdlib | -ffreestanding)
STDLIB=false
FPIE=false
PIE=false
;;
-fno-PIC | -fno-pic | -fno-PIE | -fno-pie | \
-nopie | -static | -shared | \
-D__KERNEL__ | -nostartfiles)
FPIE=false
PIE=false
;;
-fPIC | -fpic)
FPIE=false
;;
-O0)
;;
-O*)
OPTIMIZE=true
;;
-I/usr/include | -L/usr/lib | -L/lib)
if ! ${HOST}; then
echo "wrapper: Bad search path in:" >&2
echo "${0##*/} $*" >&2
exit 1
fi
;;
-)
COMPILING=true
;;
-*)
;;
*)
COMPILING=true
;;
esac
done
# Used e.g. by the kernel to get the compiler version. Adding
# linker options confuses gcc because there is nothing to link.
if ! $COMPILING; then
LINKING=false
fi
}
add_arg() {
ARG_LIST="${ARG_LIST} ${*}"
}
add_late_arg() {
LATE_ARG_LIST="${LATE_ARG_LIST} ${*}"
}
add_opt_arg() {
local opt="${1}"
shift
for item in ${pkg_wrapper_blacklist}; do
if [ "${item}" = "${opt}" ]; then
return
fi
done
opt="PTXCONF_${opt}"
eval "opt=\$${opt}"
if [ -z "${opt}" ]; then
return
fi
add_arg "${@}"
}
add_ld_args() {
add_opt_arg TARGET_HARDEN_RELRO "${1}-z,relro"
add_opt_arg TARGET_HARDEN_BINDNOW "${1}-z,now"
add_opt_arg TARGET_LINKER_HASH_GNU "${1}--hash-style=gnu"
add_opt_arg TARGET_LINKER_HASH_SYSV "${1}--hash-style=sysv"
add_opt_arg TARGET_LINKER_HASH_BOTH "${1}--hash-style=both"
add_opt_arg TARGET_LINKER_AS_NEEDED "${1}--as-needed"
}
ld_add_ld_args() {
# ld warns about ignored keywords (-z <keyword>) when only asked for the
# version
if [ "$*" != "-v" ]; then
add_ld_args
fi
}
cc_add_target_ld_args() {
if ${LINKING}; then
add_ld_args "-Wl,"
add_late_arg ${PTXDIST_CROSS_LDFLAGS}
add_opt_arg TARGET_EXTRA_LDFLAGS ${PTXCONF_TARGET_EXTRA_LDFLAGS}
fi
}
cc_add_host_ld_args() {
if ${LINKING}; then
add_late_arg ${PTXDIST_HOST_LDFLAGS}
fi
}
cc_add_fortify() {
# fortify only works when optimizing is enabled. The warning
# generated when combining -D_FORTIFY_SOURCE with -O0 can confuse
# configure checks
if ${FORTIFY} && ${OPTIMIZE}; then
add_opt_arg TARGET_HARDEN_FORTIFY "-D_FORTIFY_SOURCE=2"
fi
}
cc_add_stack() {
if ${STDLIB}; then
add_opt_arg TARGET_HARDEN_STACK "-fstack-protector" "--param=ssp-buffer-size=4"
fi
}
cc_add_pie() {
if ${FPIE}; then
add_opt_arg TARGET_HARDEN_PIE "-fPIE"
fi
if ${PIE}; then
add_opt_arg TARGET_HARDEN_PIE "-pie"
fi
}
cpp_add_target_extra() {
add_arg -frecord-gcc-switches
add_arg ${PTXDIST_CROSS_CPPFLAGS}
add_opt_arg TARGET_EXTRA_CPPFLAGS ${PTXCONF_TARGET_EXTRA_CPPFLAGS}
}
cc_add_target_extra() {
cpp_add_target_extra
add_opt_arg TARGET_EXTRA_CFLAGS ${PTXCONF_TARGET_EXTRA_CFLAGS}
}
cxx_add_target_extra() {
cpp_add_target_extra
add_opt_arg TARGET_EXTRA_CXXFLAGS ${PTXCONF_TARGET_EXTRA_CXXFLAGS}
}
cpp_add_host_extra() {
add_arg ${PTXDIST_HOST_CPPFLAGS}
}
cc_add_host_extra() {
cpp_add_host_extra
}
cxx_add_host_extra() {
cpp_add_host_extra
}
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