core/pkgs/by-name/bi/binutils/bintools-wrapper/setup-hook.sh

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2024-05-02 00:46:19 +00:00
# Binutils Wrapper hygiene
#
# See comments in cc-wrapper's setup hook. This works exactly the same way.
# Skip setup hook if we're neither a build-time dep, nor, temporarily, doing a
# native compile.
#
# TODO(@Ericson2314): No native exception
[[ -z ${strictDeps-} ]] || (( "$hostOffset" < 0 )) || return 0
bintoolsWrapper_addLDVars () {
# See ../setup-hooks/role.bash
local role_post
getHostRoleEnvHook
if [[ -d "$1/lib64" && ! -L "$1/lib64" ]]; then
export NIX_LDFLAGS${role_post}+=" -L$1/lib64"
fi
if [[ -d "$1/lib" ]]; then
# Don't add the /lib directory if it actually doesn't contain any libraries. For instance,
# Python and Haskell packages often only have directories like $out/lib/ghc-8.4.3/ or
# $out/lib/python3.6/, so having them in LDFLAGS just makes the linker search unnecessary
# directories and bloats the size of the environment variable space.
local -a glob=( $1/lib/lib* )
if [ "${#glob[*]}" -gt 0 ]; then
export NIX_LDFLAGS${role_post}+=" -L$1/lib"
fi
fi
}
# See ../setup-hooks/role.bash
getTargetRole
getTargetRoleWrapper
addEnvHooks "$targetOffset" bintoolsWrapper_addLDVars
# shellcheck disable=SC2157
if [ -n "@bintools_bin@" ]; then
addToSearchPath _PATH @bintools_bin@/bin
fi
# shellcheck disable=SC2157
if [ -n "@libc_bin@" ]; then
addToSearchPath _PATH @libc_bin@/bin
fi
# shellcheck disable=SC2157
if [ -n "@coreutils_bin@" ]; then
addToSearchPath _PATH @coreutils_bin@/bin
fi
# Export tool environment variables so various build systems use the right ones.
export NIX_BINTOOLS${role_post}=@out@
for cmd in \
ar as ld nm objcopy objdump readelf ranlib strip strings size windres
do
if
PATH=$_PATH type -p "@targetPrefix@${cmd}" > /dev/null
then
export "${cmd^^}${role_post}=@targetPrefix@${cmd}";
fi
done
# If unset, assume the default hardening flags.
: ${NIX_HARDENING_ENABLE="@default_hardening_flags_str@"}
export NIX_HARDENING_ENABLE
# No local scope in sourced file
unset -v role_post cmd upper_case