nixpkgs/pkgs/development/libraries/glibc/common.nix
Ilya Kolpakov e4afe8fc6c glibc: comments on bin not being the first output
The glibc package does not respect a standard convention to put the
executables in the first output which should be as clear as possible
to anyone seeking to use such executables (e.g. `ldd`). This commit
adds a detailed comment a the top of `common.nix` explaining the
deviation from the convention and how to reference the binaries.
2017-11-06 16:47:30 +01:00

232 lines
7.1 KiB
Nix

/* Build configuration used to build glibc, Info files, and locale
information.
Note that this derivation has multiple outputs and does not respect the
standard convention of putting the executables into the first output. The
first output is `lib` so that the libraries provided by this derivation
can be accessed directly, e.g.
"${pkgs.glibc}/lib/ld-linux-x86_64.so.2"
The executables are put into `bin` output and need to be referenced via
the `bin` attribute of the main package, e.g.
"${pkgs.glibc.bin}/bin/ldd".
The executables provided by glibc typically include `ldd`, `locale`, `iconv`
but the exact set depends on the library version and the configuration.
*/
{ stdenv, lib
, buildPlatform, hostPlatform
, buildPackages
, fetchurl
, linuxHeaders ? null
, gd ? null, libpng ? null
}:
{ name
, withLinuxHeaders ? false
, profilingLibraries ? false
, installLocales ? false
, withGd ? false
, meta
, ...
} @ args:
let
version = "2.25";
patchSuffix = "-49";
sha256 = "067bd9bb3390e79aa45911537d13c3721f1d9d3769931a30c2681bfee66f23a0";
cross = if buildPlatform != hostPlatform then hostPlatform else null;
in
assert withLinuxHeaders -> linuxHeaders != null;
assert withGd -> gd != null && libpng != null;
stdenv.mkDerivation ({
inherit installLocales;
linuxHeaders = if withLinuxHeaders then linuxHeaders else null;
# The host/target system.
crossConfig = if cross != null then cross.config else null;
inherit (stdenv) is64bit;
enableParallelBuilding = true;
patches =
[
/* No tarballs for stable upstream branch, only https://sourceware.org/git/?p=glibc.git
$ git co release/2.25/master; git describe
glibc-2.25-49-gbc5ace67fe
$ git show --reverse glibc-2.25..release/2.25/master | gzip -n -9 --rsyncable - > 2.25-49.patch.gz
*/
./2.25-49.patch.gz
/* Have rpcgen(1) look for cpp(1) in $PATH. */
./rpcgen-path.patch
/* Allow NixOS and Nix to handle the locale-archive. */
./nix-locale-archive.patch
/* Don't use /etc/ld.so.cache, for non-NixOS systems. */
./dont-use-system-ld-so-cache.patch
/* Don't use /etc/ld.so.preload, but /etc/ld-nix.so.preload. */
./dont-use-system-ld-so-preload.patch
/* The command "getconf CS_PATH" returns the default search path
"/bin:/usr/bin", which is inappropriate on NixOS machines. This
patch extends the search path by "/run/current-system/sw/bin". */
./fix_path_attribute_in_getconf.patch
]
++ lib.optional stdenv.isx86_64 ./fix-x64-abi.patch;
postPatch =
# Needed for glibc to build with the gnumake 3.82
# http://comments.gmane.org/gmane.linux.lfs.support/31227
''
sed -i 's/ot \$/ot:\n\ttouch $@\n$/' manual/Makefile
''
# nscd needs libgcc, and we don't want it dynamically linked
# because we don't want it to depend on bootstrap-tools libs.
+ ''
echo "LDFLAGS-nscd += -static-libgcc" >> nscd/Makefile
''
# Replace the date and time in nscd by a prefix of $out.
# It is used as a protocol compatibility check.
# Note: the size of the struct changes, but using only a part
# would break hash-rewriting. When receiving stats it does check
# that the struct sizes match and can't cause overflow or something.
+ ''
cat ${./glibc-remove-datetime-from-nscd.patch} \
| sed "s,@out@,$out," | patch -p1
'';
configureFlags =
[ "-C"
"--enable-add-ons"
"--enable-obsolete-rpc"
"--sysconfdir=/etc"
"--enable-stackguard-randomization"
(if withLinuxHeaders
then "--with-headers=${linuxHeaders}/include"
else "--without-headers")
(if profilingLibraries
then "--enable-profile"
else "--disable-profile")
] ++ lib.optionals (cross == null && withLinuxHeaders) [
"--enable-kernel=2.6.32"
] ++ lib.optionals (cross != null) [
(if cross.withTLS then "--with-tls" else "--without-tls")
(if cross ? float && cross.float == "soft" then "--without-fp" else "--with-fp")
] ++ lib.optionals (cross != null
&& cross.platform ? kernelMajor
&& cross.platform.kernelMajor == "2.6") [
"--enable-kernel=2.6.0"
"--with-__thread"
] ++ lib.optionals (cross == null && stdenv.isArm) [
"--host=arm-linux-gnueabi"
"--build=arm-linux-gnueabi"
# To avoid linking with -lgcc_s (dynamic link)
# so the glibc does not depend on its compiler store path
"libc_cv_as_needed=no"
] ++ lib.optional withGd "--with-gd";
installFlags = [ "sysconfdir=$(out)/etc" ];
outputs = [ "out" "bin" "dev" "static" ];
nativeBuildInputs = lib.optional (cross != null) buildPackages.stdenv.cc;
buildInputs = lib.optionals withGd [ gd libpng ];
# Needed to install share/zoneinfo/zone.tab. Set to impure /bin/sh to
# prevent a retained dependency on the bootstrap tools in the stdenv-linux
# bootstrap.
BASH_SHELL = "/bin/sh";
}
// (removeAttrs args [ "withLinuxHeaders" "withGd" ]) //
{
name = name + "-${version}${patchSuffix}" +
lib.optionalString (cross != null) "-${cross.config}";
src = fetchurl {
url = "mirror://gnu/glibc/glibc-${version}.tar.xz";
inherit sha256;
};
# Remove absolute paths from `configure' & co.; build out-of-tree.
preConfigure = ''
export PWD_P=$(type -tP pwd)
for i in configure io/ftwtest-sh; do
# Can't use substituteInPlace here because replace hasn't been
# built yet in the bootstrap.
sed -i "$i" -e "s^/bin/pwd^$PWD_P^g"
done
mkdir ../build
cd ../build
configureScript="`pwd`/../$sourceRoot/configure"
${lib.optionalString (stdenv.cc.libc != null)
''makeFlags="$makeFlags BUILD_LDFLAGS=-Wl,-rpath,${stdenv.cc.libc}/lib"''
}
'' + lib.optionalString (cross != null) ''
sed -i s/-lgcc_eh//g "../$sourceRoot/Makeconfig"
cat > config.cache << "EOF"
libc_cv_forced_unwind=yes
libc_cv_c_cleanup=yes
libc_cv_gnu89_inline=yes
# Only due to a problem in gcc configure scripts:
libc_cv_sparc64_tls=${if cross.withTLS then "yes" else "no"}
EOF
export BUILD_CC=gcc
export CC="$crossConfig-gcc"
export AR="$crossConfig-ar"
export RANLIB="$crossConfig-ranlib"
'';
preBuild = lib.optionalString withGd "unset NIX_DONT_SET_RPATH";
meta = {
homepage = http://www.gnu.org/software/libc/;
description = "The GNU C Library";
longDescription =
'' Any Unix-like operating system needs a C library: the library which
defines the "system calls" and other basic facilities such as
open, malloc, printf, exit...
The GNU C library is used as the C library in the GNU system and
most systems with the Linux kernel.
'';
license = lib.licenses.lgpl2Plus;
maintainers = [ lib.maintainers.eelco ];
platforms = lib.platforms.linux;
} // meta;
}
// lib.optionalAttrs (cross != null) {
preInstall = null; # clobber the native hook
dontStrip = true;
separateDebugInfo = false; # this is currently broken for crossDrv
# To avoid a dependency on the build system 'bash'.
preFixup = ''
rm $bin/bin/{ldd,tzselect,catchsegv,xtrace}
'';
})