mirror of
https://github.com/SebastianWendel/nixpkgs.git
synced 2024-11-06 02:06:46 +01:00
322 lines
11 KiB
Nix
322 lines
11 KiB
Nix
# The Nixpkgs CC is not directly usable, since it doesn't know where
|
|
# the C library and standard header files are. Therefore the compiler
|
|
# produced by that package cannot be installed directly in a user
|
|
# environment and used from the command line. So we use a wrapper
|
|
# script that sets up the right environment variables so that the
|
|
# compiler and the linker just "work".
|
|
|
|
{ name ? ""
|
|
, stdenvNoCC, nativeTools, propagateDoc ? !nativeTools, noLibc ? false, nativeLibc, nativePrefix ? ""
|
|
, bintools ? null, libc ? null
|
|
, coreutils ? null, shell ? stdenvNoCC.shell, gnugrep ? null
|
|
, extraPackages ? [], extraBuildCommands ? ""
|
|
, buildPackages ? {}
|
|
, useMacosReexportHack ? false
|
|
}:
|
|
|
|
with stdenvNoCC.lib;
|
|
|
|
assert nativeTools -> !propagateDoc && nativePrefix != "";
|
|
assert !nativeTools ->
|
|
bintools != null && coreutils != null && gnugrep != null;
|
|
assert !(nativeLibc && noLibc);
|
|
assert (noLibc || nativeLibc) == (libc == null);
|
|
|
|
let
|
|
stdenv = stdenvNoCC;
|
|
inherit (stdenv) hostPlatform targetPlatform;
|
|
|
|
# Prefix for binaries. Customarily ends with a dash separator.
|
|
#
|
|
# TODO(@Ericson2314) Make unconditional, or optional but always true by
|
|
# default.
|
|
targetPrefix = stdenv.lib.optionalString (targetPlatform != hostPlatform)
|
|
(targetPlatform.config + "-");
|
|
|
|
bintoolsVersion = (builtins.parseDrvName bintools.name).version;
|
|
bintoolsName = (builtins.parseDrvName bintools.name).name;
|
|
|
|
libc_bin = if libc == null then null else getBin libc;
|
|
libc_dev = if libc == null then null else getDev libc;
|
|
libc_lib = if libc == null then null else getLib libc;
|
|
bintools_bin = if nativeTools then "" else getBin bintools;
|
|
# The wrapper scripts use 'cat' and 'grep', so we may need coreutils.
|
|
coreutils_bin = if nativeTools then "" else getBin coreutils;
|
|
|
|
# See description in cc-wrapper.
|
|
infixSalt = replaceStrings ["-" "."] ["_" "_"] targetPlatform.config;
|
|
|
|
# The dynamic linker has different names on different platforms. This is a
|
|
# shell glob that ought to match it.
|
|
dynamicLinker =
|
|
/**/ if libc == null then null
|
|
else if targetPlatform.libc == "musl" then "${libc_lib}/lib/ld-musl-*"
|
|
else if targetPlatform.libc == "bionic" then "/system/bin/linker"
|
|
else if targetPlatform.system == "i686-linux" then "${libc_lib}/lib/ld-linux.so.2"
|
|
else if targetPlatform.system == "x86_64-linux" then "${libc_lib}/lib/ld-linux-x86-64.so.2"
|
|
# ARM with a wildcard, which can be "" or "-armhf".
|
|
else if (with targetPlatform; isAarch32 && isLinux) then "${libc_lib}/lib/ld-linux*.so.3"
|
|
else if targetPlatform.system == "aarch64-linux" then "${libc_lib}/lib/ld-linux-aarch64.so.1"
|
|
else if targetPlatform.system == "powerpc-linux" then "${libc_lib}/lib/ld.so.1"
|
|
else if targetPlatform.isMips then "${libc_lib}/lib/ld.so.1"
|
|
else if targetPlatform.isDarwin then "/usr/lib/dyld"
|
|
else if stdenv.lib.hasSuffix "pc-gnu" targetPlatform.config then "ld.so.1"
|
|
else null;
|
|
|
|
expand-response-params =
|
|
if buildPackages.stdenv.cc or null != null && buildPackages.stdenv.cc != "/dev/null"
|
|
then import ../expand-response-params { inherit (buildPackages) stdenv; }
|
|
else "";
|
|
|
|
in
|
|
|
|
stdenv.mkDerivation {
|
|
name = targetPrefix
|
|
+ (if name != "" then name else stdenv.lib.removePrefix targetPrefix "${bintoolsName}-wrapper")
|
|
+ (stdenv.lib.optionalString (bintools != null && bintoolsVersion != "") "-${bintoolsVersion}");
|
|
|
|
preferLocalBuild = true;
|
|
|
|
inherit bintools_bin libc_bin libc_dev libc_lib coreutils_bin;
|
|
shell = getBin shell + shell.shellPath or "";
|
|
gnugrep_bin = if nativeTools then "" else gnugrep;
|
|
|
|
inherit targetPrefix infixSalt;
|
|
|
|
outputs = [ "out" ] ++ optionals propagateDoc [ "man" "info" ];
|
|
|
|
passthru = {
|
|
inherit bintools libc nativeTools nativeLibc nativePrefix;
|
|
|
|
emacsBufferSetup = pkgs: ''
|
|
; We should handle propagation here too
|
|
(mapc
|
|
(lambda (arg)
|
|
(when (file-directory-p (concat arg "/lib"))
|
|
(setenv "NIX_${infixSalt}_LDFLAGS" (concat (getenv "NIX_${infixSalt}_LDFLAGS") " -L" arg "/lib")))
|
|
(when (file-directory-p (concat arg "/lib64"))
|
|
(setenv "NIX_${infixSalt}_LDFLAGS" (concat (getenv "NIX_${infixSalt}_LDFLAGS") " -L" arg "/lib64"))))
|
|
'(${concatStringsSep " " (map (pkg: "\"${pkg}\"") pkgs)}))
|
|
'';
|
|
};
|
|
|
|
dontBuild = true;
|
|
dontConfigure = true;
|
|
|
|
unpackPhase = ''
|
|
src=$PWD
|
|
'';
|
|
|
|
installPhase =
|
|
''
|
|
set -u
|
|
|
|
mkdir -p $out/bin $out/nix-support
|
|
|
|
wrap() {
|
|
local dst="$1"
|
|
local wrapper="$2"
|
|
export prog="$3"
|
|
set +u
|
|
substituteAll "$wrapper" "$out/bin/$dst"
|
|
set -u
|
|
chmod +x "$out/bin/$dst"
|
|
}
|
|
''
|
|
|
|
+ (if nativeTools then ''
|
|
echo ${nativePrefix} > $out/nix-support/orig-bintools
|
|
|
|
ldPath="${nativePrefix}/bin"
|
|
'' else ''
|
|
echo $bintools_bin > $out/nix-support/orig-bintools
|
|
|
|
ldPath="${bintools_bin}/bin"
|
|
''
|
|
|
|
+ optionalString (targetPlatform.isSunOS && nativePrefix != "") ''
|
|
# Solaris needs an additional ld wrapper.
|
|
ldPath="${nativePrefix}/bin"
|
|
exec="$ldPath/${targetPrefix}ld"
|
|
wrap ld-solaris ${./ld-solaris-wrapper.sh}
|
|
'')
|
|
|
|
+ ''
|
|
# Create a symlink to as (the assembler).
|
|
if [ -e $ldPath/${targetPrefix}as ]; then
|
|
ln -s $ldPath/${targetPrefix}as $out/bin/${targetPrefix}as
|
|
fi
|
|
|
|
'' + (if !useMacosReexportHack then ''
|
|
wrap ${targetPrefix}ld ${./ld-wrapper.sh} ''${ld:-$ldPath/${targetPrefix}ld}
|
|
'' else ''
|
|
ldInner="${targetPrefix}ld-reexport-delegate"
|
|
wrap "$ldInner" ${./macos-sierra-reexport-hack.bash} ''${ld:-$ldPath/${targetPrefix}ld}
|
|
wrap "${targetPrefix}ld" ${./ld-wrapper.sh} "$out/bin/$ldInner"
|
|
unset ldInner
|
|
'') + ''
|
|
|
|
for variant in ld.gold ld.bfd ld.lld; do
|
|
local underlying=$ldPath/${targetPrefix}$variant
|
|
[[ -e "$underlying" ]] || continue
|
|
wrap ${targetPrefix}$variant ${./ld-wrapper.sh} $underlying
|
|
done
|
|
|
|
set +u
|
|
'';
|
|
|
|
emulation = let
|
|
fmt =
|
|
/**/ if targetPlatform.isDarwin then "mach-o"
|
|
else if targetPlatform.isWindows then "pe"
|
|
else "elf" + toString targetPlatform.parsed.cpu.bits;
|
|
endianPrefix = if targetPlatform.isBigEndian then "big" else "little";
|
|
sep = optionalString (!targetPlatform.isMips) "-";
|
|
arch =
|
|
/**/ if targetPlatform.isAarch64 then endianPrefix + "aarch64"
|
|
else if targetPlatform.isAarch32 then endianPrefix + "arm"
|
|
else if targetPlatform.isx86_64 then "x86-64"
|
|
else if targetPlatform.isi686 then "i386"
|
|
else if targetPlatform.isMips then {
|
|
"mips" = "btsmipn32"; # n32 variant
|
|
"mipsel" = "ltsmipn32"; # n32 variant
|
|
"mips64" = "btsmip";
|
|
"mips64el" = "ltsmip";
|
|
}.${targetPlatform.parsed.cpu.name}
|
|
else if targetPlatform.isPowerPC then "powerpc"
|
|
else if targetPlatform.isSparc then "sparc"
|
|
else throw "unknown emulation for platform: " + targetPlatform.config;
|
|
in targetPlatform.platform.bfdEmulation or (fmt + sep + arch);
|
|
|
|
strictDeps = true;
|
|
depsTargetTargetPropagated = extraPackages;
|
|
|
|
wrapperName = "BINTOOLS_WRAPPER";
|
|
|
|
setupHooks = [
|
|
../setup-hooks/role.bash
|
|
./setup-hook.sh
|
|
];
|
|
|
|
postFixup =
|
|
''
|
|
set -u
|
|
''
|
|
|
|
+ optionalString (libc != null) (''
|
|
##
|
|
## General libc support
|
|
##
|
|
|
|
echo "-L${libc_lib}/lib" > $out/nix-support/libc-ldflags
|
|
|
|
echo "${libc_lib}" > $out/nix-support/orig-libc
|
|
echo "${libc_dev}" > $out/nix-support/orig-libc-dev
|
|
|
|
##
|
|
## Dynamic linker support
|
|
##
|
|
|
|
if [[ -z ''${dynamicLinker+x} ]]; then
|
|
echo "Don't know the name of the dynamic linker for platform '${targetPlatform.config}', so guessing instead." >&2
|
|
local dynamicLinker="${libc_lib}/lib/ld*.so.?"
|
|
fi
|
|
|
|
# Expand globs to fill array of options
|
|
dynamicLinker=($dynamicLinker)
|
|
|
|
case ''${#dynamicLinker[@]} in
|
|
0) echo "No dynamic linker found for platform '${targetPlatform.config}'." >&2;;
|
|
1) echo "Using dynamic linker: '$dynamicLinker'" >&2;;
|
|
*) echo "Multiple dynamic linkers found for platform '${targetPlatform.config}'." >&2;;
|
|
esac
|
|
|
|
if [ -n "''${dynamicLinker:-}" ]; then
|
|
echo $dynamicLinker > $out/nix-support/dynamic-linker
|
|
|
|
'' + (if targetPlatform.isDarwin then ''
|
|
printf "export LD_DYLD_PATH=%q\n" "$dynamicLinker" >> $out/nix-support/setup-hook
|
|
'' else ''
|
|
if [ -e ${libc_lib}/lib/32/ld-linux.so.2 ]; then
|
|
echo ${libc_lib}/lib/32/ld-linux.so.2 > $out/nix-support/dynamic-linker-m32
|
|
fi
|
|
|
|
local ldflagsBefore=(-dynamic-linker "$dynamicLinker")
|
|
'') + ''
|
|
fi
|
|
|
|
# The dynamic linker is passed in `ldflagsBefore' to allow
|
|
# explicit overrides of the dynamic linker by callers to ld
|
|
# (the *last* value counts, so ours should come first).
|
|
printWords "''${ldflagsBefore[@]}" > $out/nix-support/libc-ldflags-before
|
|
'')
|
|
|
|
+ optionalString (!nativeTools) ''
|
|
##
|
|
## User env support
|
|
##
|
|
|
|
# Propagate the underling unwrapped bintools so that if you
|
|
# install the wrapper, you get tools like objdump (same for any
|
|
# binaries of libc).
|
|
printWords ${bintools_bin} ${if libc == null then "" else libc_bin} > $out/nix-support/propagated-user-env-packages
|
|
''
|
|
|
|
+ optionalString propagateDoc ''
|
|
##
|
|
## Man page and info support
|
|
##
|
|
|
|
mkdir -p $man/nix-support $info/nix-support
|
|
printWords ${bintools.man or ""} >> $man/nix-support/propagated-build-inputs
|
|
printWords ${bintools.info or ""} >> $info/nix-support/propagated-build-inputs
|
|
''
|
|
|
|
+ ''
|
|
##
|
|
## Hardening support
|
|
##
|
|
|
|
# some linkers on some platforms don't support specific -z flags
|
|
export hardening_unsupported_flags=""
|
|
if [[ "$($ldPath/${targetPrefix}ld -z now 2>&1 || true)" =~ un(recognized|known)\ option ]]; then
|
|
hardening_unsupported_flags+=" bindnow"
|
|
fi
|
|
if [[ "$($ldPath/${targetPrefix}ld -z relro 2>&1 || true)" =~ un(recognized|known)\ option ]]; then
|
|
hardening_unsupported_flags+=" relro"
|
|
fi
|
|
''
|
|
|
|
+ optionalString hostPlatform.isCygwin ''
|
|
hardening_unsupported_flags+=" pic"
|
|
''
|
|
|
|
+ ''
|
|
set +u
|
|
substituteAll ${./add-flags.sh} $out/nix-support/add-flags.sh
|
|
substituteAll ${./add-hardening.sh} $out/nix-support/add-hardening.sh
|
|
substituteAll ${../wrapper-common/utils.bash} $out/nix-support/utils.bash
|
|
|
|
##
|
|
## Extra custom steps
|
|
##
|
|
''
|
|
|
|
+ extraBuildCommands;
|
|
|
|
inherit dynamicLinker expand-response-params;
|
|
|
|
# for substitution in utils.bash
|
|
expandResponseParams = "${expand-response-params}/bin/expand-response-params";
|
|
|
|
meta =
|
|
let bintools_ = if bintools != null then bintools else {}; in
|
|
(if bintools_ ? meta then removeAttrs bintools.meta ["priority"] else {}) //
|
|
{ description =
|
|
stdenv.lib.attrByPath ["meta" "description"] "System binary utilities" bintools_
|
|
+ " (wrapper script)";
|
|
} // optionalAttrs useMacosReexportHack {
|
|
platforms = stdenv.lib.platforms.darwin;
|
|
};
|
|
}
|