pkgs/build-support/bintools-wrapper/setup-hook.sh

   1 # Binutils Wrapper hygiene
   2 #
   3 # See comments in cc-wrapper's setup hook. This works exactly the same way.
   4
   5 # Skip setup hook if we're neither a build-time dep, nor, temporarily, doing a
   6 # native compile.
   7 #
   8 # TODO(@Ericson2314): No native exception
   9 [[ -z ${strictDeps-} ]] || (( "$hostOffset" < 0 )) || return 0
  10
  11 bintoolsWrapper_addLDVars () {
  12     # See ../setup-hooks/role.bash
  13     local role_post
  14     getHostRoleEnvHook
  15
  16     if [[ -d "$1/lib64" && ! -L "$1/lib64" ]]; then
  17         export NIX_LDFLAGS${role_post}+=" -L$1/lib64"
  18     fi
  19
  20     if [[ -d "$1/lib" ]]; then
  21         # Don't add the /lib directory if it actually doesn't contain any libraries. For instance,
  22         # Python and Haskell packages often only have directories like $out/lib/ghc-8.4.3/ or
  23         # $out/lib/python3.6/, so having them in LDFLAGS just makes the linker search unnecessary
  24         # directories and bloats the size of the environment variable space.
  25         local -a glob=( $1/lib/lib* )
  26         if [ "${#glob[*]}" -gt 0 ]; then
  27             export NIX_LDFLAGS${role_post}+=" -L$1/lib"
  28         fi
  29     fi
  30 }
  31
  32 # See ../setup-hooks/role.bash
  33 getTargetRole
  34 getTargetRoleWrapper
  35
  36 addEnvHooks "$targetOffset" bintoolsWrapper_addLDVars
  37
  38 # shellcheck disable=SC2157
  39 if [ -n "@bintools_bin@" ]; then
  40     addToSearchPath _PATH @bintools_bin@/bin
  41 fi
  42
  43 # shellcheck disable=SC2157
  44 if [ -n "@libc_bin@" ]; then
  45     addToSearchPath _PATH @libc_bin@/bin
  46 fi
  47
  48 # shellcheck disable=SC2157
  49 if [ -n "@coreutils_bin@" ]; then
  50     addToSearchPath _PATH @coreutils_bin@/bin
  51 fi
  52
  53 # Export tool environment variables so various build systems use the right ones.
  54
  55 export NIX_BINTOOLS${role_post}=@out@
  56
  57 for cmd in \
  58     ar as ld nm objcopy objdump readelf ranlib strip strings size windres
  59 do
  60     if
  61         PATH=$_PATH type -p "@targetPrefix@${cmd}" > /dev/null
  62     then
  63         export "${cmd^^}${role_post}=@targetPrefix@${cmd}";
  64     fi
  65 done
  66
  67 # If unset, assume the default hardening flags.
  68 : ${NIX_HARDENING_ENABLE="@default_hardening_flags_str@"}
  69 export NIX_HARDENING_ENABLE
  70
  71 # No local scope in sourced file
  72 unset -v role_post cmd upper_case