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