nixpkgs/pkgs/development/tools/profiling/systemtap/default.nix
2017-02-06 01:54:19 +01:00

59 lines
2.0 KiB
Nix

{ fetchgit, pkgconfig, gettext, runCommand, makeWrapper
, elfutils, kernel, gnumake, python2, pythonPackages, binutils }:
let
## fetchgit info
url = git://sourceware.org/git/systemtap.git;
rev = "276ed27a3cc64531542ab73bb36bb04784e79bbc";
sha256 = "11967dx3cjs96v3ncfljw0h7blsgg9wm8g9z2270q9a90988g2c2";
version = "2017-02-04";
inherit (kernel) stdenv;
inherit (stdenv) lib;
## stap binaries
stapBuild = stdenv.mkDerivation {
name = "systemtap-${version}";
src = fetchgit { inherit url rev sha256; };
buildInputs = [ elfutils pkgconfig gettext python2 pythonPackages.setuptools ];
# FIXME: Workaround for bug in kbuild, where quoted -I"/foo" flags would get mangled in out-of-tree kbuild dirs
postPatch = ''
substituteInPlace buildrun.cxx --replace \
'o << "EXTRA_CFLAGS += -I\"" << s.runtime_path << "\"" << endl;' \
'o << "EXTRA_CFLAGS += -I" << s.runtime_path << endl;'
'';
enableParallelBuilding = true;
};
## a kernel build dir as expected by systemtap
kernelBuildDir = runCommand "kbuild-${kernel.version}-merged" { } ''
mkdir -p $out
for f in \
${kernel}/System.map \
${kernel.dev}/vmlinux \
${kernel.dev}/lib/modules/${kernel.modDirVersion}/build/{*,.*}
do
ln -s $(readlink -f $f) $out
done
'';
in runCommand "systemtap-${kernel.version}-${version}" {
inherit stapBuild kernelBuildDir;
buildInputs = [ makeWrapper ];
meta = {
homepage = https://sourceware.org/systemtap/;
repositories.git = url;
description = "Provides a scripting language for instrumentation on a live kernel plus user-space";
license = lib.licenses.gpl2;
platforms = lib.platforms.linux;
};
} ''
mkdir -p $out/bin
for bin in $stapBuild/bin/*; do # hello emacs */
ln -s $bin $out/bin
done
rm $out/bin/stap
makeWrapper $stapBuild/bin/stap $out/bin/stap \
--add-flags "-r $kernelBuildDir" \
--prefix PATH : ${lib.makeBinPath [ stdenv.cc.cc binutils elfutils gnumake ]}
''