nixpkgs/pkgs/test/cc-wrapper/default.nix
Jörg Thalheim ccfd26ef14 bintools-wrapper: skip dynamic linker for static binaries
Currently we set dynamic-linker unconditionally. This breaks
however some static binaries i.e. rust binaries linked against musl.
There is no reason we should set an elf interpreter for static binaries
hence this is skipped if `-static` or `-static-pie` is either passed to
our cc or ld wrapper.
2020-12-14 15:42:54 +00:00

79 lines
2.8 KiB
Nix

{ stdenv, glibc }:
with stdenv.lib;
let
# Sanitizers are not supported on Darwin.
# Sanitizer headers aren't available in older libc++ stdenvs due to a bug
sanitizersWorking = !stdenv.hostPlatform.isMusl && (
(stdenv.cc.isClang && versionAtLeast (getVersion stdenv.cc.name) "5.0.0")
|| (stdenv.cc.isGNU && stdenv.isLinux)
);
staticLibc = optionalString (stdenv.hostPlatform.libc == "glibc") "-L ${glibc.static}/lib";
in stdenv.mkDerivation {
name = "cc-wrapper-test";
buildCommand = ''
NIX_DEBUG=1 $CC -v
NIX_DEBUG=1 $CXX -v
printf "checking whether compiler builds valid C binaries... " >&2
$CC -o cc-check ${./cc-main.c}
./cc-check
printf "checking whether compiler builds valid C++ binaries... " >&2
$CXX -o cxx-check ${./cxx-main.cc}
./cxx-check
${optionalString (stdenv.isDarwin && stdenv.cc.isClang) ''
printf "checking whether compiler can build with CoreFoundation.framework... " >&2
mkdir -p foo/lib
$CC -framework CoreFoundation -o core-foundation-check ${./core-foundation-main.c}
./core-foundation-check
''}
printf "checking whether compiler builds valid static C binaries... " >&2
$CC ${staticLibc} -static -o cc-static ${./cc-main.c}
./cc-static
# our glibc does not have pie enabled yet.
${optionalString (stdenv.hostPlatform.isMusl && stdenv.cc.isGNU) ''
printf "checking whether compiler builds valid static pie C binaries... " >&2
$CC ${staticLibc} -static-pie -o cc-static-pie ${./cc-main.c}
./cc-static-pie
''}
printf "checking whether compiler uses NIX_CFLAGS_COMPILE... " >&2
mkdir -p foo/include
cp ${./foo.c} foo/include/foo.h
NIX_CFLAGS_COMPILE="-Ifoo/include -DVALUE=42" $CC -o cflags-check ${./cflags-main.c}
./cflags-check
printf "checking whether compiler uses NIX_LDFLAGS... " >&2
mkdir -p foo/lib
$CC -shared \
${optionalString stdenv.isDarwin "-Wl,-install_name,@rpath/libfoo.dylib"} \
-DVALUE=42 \
-o foo/lib/libfoo${stdenv.hostPlatform.extensions.sharedLibrary} \
${./foo.c}
NIX_LDFLAGS="-L$NIX_BUILD_TOP/foo/lib -rpath $NIX_BUILD_TOP/foo/lib" $CC -lfoo -o ldflags-check ${./ldflags-main.c}
./ldflags-check
printf "Check whether -nostdinc and -nostdinc++ is handled correctly" >&2
mkdir -p std-include
cp ${./stdio.h} std-include/stdio.h
NIX_DEBUG=1 $CC -I std-include -nostdinc -o nostdinc-main ${./nostdinc-main.c}
./nostdinc-main
$CXX -I std-include -nostdinc++ -o nostdinc-main++ ${./nostdinc-main.c}
./nostdinc-main++
${optionalString sanitizersWorking ''
printf "checking whether sanitizers are fully functional... ">&2
$CC -o sanitizers -fsanitize=address,undefined ${./sanitizers.c}
./sanitizers
''}
touch $out
'';
meta.platforms = platforms.all;
}