forked from mirrors/nixpkgs
1b11f2b6ac
Workaround build failure on -fno-common toolchains like upstream
gcc-10. Otherwise build fails as:
ld: lockdep.o:/build/linux-5.0.21/tools/lib/lockdep/../../include/linux/rcu.h:5: multiple definition of
`rcu_scheduler_active'; common.o:/build/linux-5.0.21/tools/lib/lockdep/../../include/linux/rcu.h:5: first defined here
68 lines
2.1 KiB
Nix
68 lines
2.1 KiB
Nix
{ lib, stdenv, fetchurl, bash, flex, bison, valgrind }:
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stdenv.mkDerivation rec {
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pname = "lockdep";
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# it would be nice to be able to pick a kernel version in sync with something
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# else we already ship, but it seems userspace lockdep isn't very well maintained
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# and appears broken in many kernel releases
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version = "5.0.21";
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fullver = "5.0.21";
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src = fetchurl {
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url = "mirror://kernel/linux/kernel/v5.x/linux-${version}.tar.xz";
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sha256 = "1my2m9hvnvdrvzcg0fgqgaga59y2cd5zlpv7xrfj2nn98sjhglwq";
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};
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# ensure *this* kernel's userspace-headers are picked up before we
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# fall back to those in glibc, as they will be from a mismatched
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# kernel version
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postPatch = ''
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substituteInPlace tools/lib/lockdep/Makefile \
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--replace 'CONFIG_INCLUDES =' $'CONFIG_INCLUDES = -I../../../usr/include\n#'
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'';
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nativeBuildInputs = [ flex bison ];
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# Workaround build failure on -fno-common toolchains like upstream
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# gcc-10. Otherwise build fails as:
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# ld: lockdep.o:/build/linux-5.0.21/tools/lib/lockdep/../../include/linux/rcu.h:5: multiple definition of
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# `rcu_scheduler_active'; common.o:/build/linux-5.0.21/tools/lib/lockdep/../../include/linux/rcu.h:5: first defined here
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NIX_CFLAGS_COMPILE = "-fcommon";
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buildPhase = ''
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make defconfig
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make headers_install
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cd tools/lib/lockdep
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make
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'';
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doCheck = true;
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checkInputs = [ valgrind ];
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checkPhase = ''
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# there are more /bin/bash references than just shebangs
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for f in lockdep run_tests.sh tests/*.sh; do
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substituteInPlace $f \
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--replace '/bin/bash' '${bash}/bin/bash'
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done
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./run_tests.sh
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'';
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installPhase = ''
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mkdir -p $out/bin $out/lib $out/include
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cp -R include/liblockdep $out/include
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make install DESTDIR=$out prefix=""
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substituteInPlace $out/bin/lockdep --replace "./liblockdep.so" "$out/lib/liblockdep.so.$fullver"
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'';
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meta = {
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description = "Userspace locking validation tool built on the Linux kernel";
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homepage = "https://kernel.org/";
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license = lib.licenses.gpl2;
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platforms = lib.platforms.linux;
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maintainers = [ lib.maintainers.thoughtpolice ];
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};
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}
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