nixpkgs/pkgs/development/interpreters/perl/default.nix
John Ericson ba52ae5048 treewide: isArm -> isAarch32
Following legacy packing conventions, `isArm` was defined just for
32-bit ARM instruction set. This is confusing to non packagers though,
because Aarch64 is an ARM instruction set.

The official ARM overview for ARMv8[1] is surprisingly not confusing,
given the overall state of affairs for ARM naming conventions, and
offers us a solution. It divides the nomenclature into three levels:

```
ISA:             ARMv8   {-A, -R, -M}
                 /    \
Mode:     Aarch32     Aarch64
             |         /   \
Encoding:   A64      A32   T32
```

At the top is the overall v8 instruction set archicture. Second are the
two modes, defined by bitwidth but differing in other semantics too, and
buttom are the encodings, (hopefully?) isomorphic if they encode the
same mode.

The 32 bit encodings are mostly backwards compatible with previous
non-Thumb and Thumb encodings, and if so we can pun the mode names to
instead mean "sets of compatable or isomorphic encodings", and then
voilà we have nice names for 32-bit and 64-bit arm instruction sets
which do not use the word ARM so as to not confused either laymen or
experienced ARM packages.

[1]: https://developer.arm.com/products/architecture/a-profile
2018-04-25 15:28:55 -04:00

203 lines
7.5 KiB
Nix

{ lib, stdenv, fetchurlBoot, buildPackages
, enableThreading ? stdenv ? glibc, fetchpatch, makeWrapper
}:
with lib;
# We can only compile perl with threading on platforms where we have a
# real glibc in the stdenv.
#
# Instead of silently building an unthreaded perl if this is not the
# case, we force callers to disableThreading explicitly, therefore
# documenting the platforms where the perl is not threaded.
#
# In the case of stdenv linux boot stage1 it's not possible to use
# threading because of the simpleness of the bootstrap glibc, so we
# use enableThreading = false there.
assert enableThreading -> (stdenv ? glibc);
let
libc = if stdenv.cc.libc or null != null then stdenv.cc.libc else "/usr";
libcInc = lib.getDev libc;
libcLib = lib.getLib libc;
crossCompiling = stdenv.buildPlatform != stdenv.hostPlatform;
common = { version, sha256 }: stdenv.mkDerivation (rec {
name = "perl-${version}";
src = fetchurlBoot {
url = "mirror://cpan/src/5.0/${name}.tar.gz";
inherit sha256;
};
# TODO: Add a "dev" output containing the header files.
outputs = [ "out" "man" "devdoc" ] ++
stdenv.lib.optional crossCompiling "dev";
setOutputFlags = false;
patches =
[ ]
# Do not look in /usr etc. for dependencies.
++ optional (versionOlder version "5.26") ./no-sys-dirs.patch
++ optional (versionAtLeast version "5.26") ./no-sys-dirs-5.26.patch
++ optional (versionAtLeast version "5.24") (
# Fix parallel building: https://rt.perl.org/Public/Bug/Display.html?id=132360
fetchurlBoot {
url = "https://rt.perl.org/Public/Ticket/Attachment/1502646/807252/0001-Fix-missing-build-dependency-for-pods.patch";
sha256 = "1bb4mldfp8kq1scv480wm64n2jdsqa3ar46cjp1mjpby8h5dr2r0";
})
++ optional stdenv.isSunOS ./ld-shared.patch
++ optional stdenv.isDarwin ./cpp-precomp.patch
++ optional (stdenv.isDarwin && versionAtLeast version "5.24") ./sw_vers.patch
++ optional crossCompiling ./MakeMaker-cross.patch;
postPatch = ''
pwd="$(type -P pwd)"
substituteInPlace dist/PathTools/Cwd.pm \
--replace "/bin/pwd" "$pwd"
'' + stdenv.lib.optionalString crossCompiling ''
substituteInPlace cnf/configure_tool.sh --replace "cc -E -P" "cc -E"
'';
# Build a thread-safe Perl with a dynamic libperls.o. We need the
# "installstyle" option to ensure that modules are put under
# $out/lib/perl5 - this is the general default, but because $out
# contains the string "perl", Configure would select $out/lib.
# Miniperl needs -lm. perl needs -lrt.
configureFlags =
(if crossCompiling
then [ "-Dlibpth=\"\"" "-Dglibpth=\"\"" ]
else [ "-de" "-Dcc=cc" ])
++ [
"-Uinstallusrbinperl"
"-Dinstallstyle=lib/perl5"
"-Duseshrplib"
"-Dlocincpth=${libcInc}/include"
"-Dloclibpth=${libcLib}/lib"
]
++ optional stdenv.isSunOS "-Dcc=gcc"
++ optional enableThreading "-Dusethreads";
configureScript = stdenv.lib.optionalString (!crossCompiling) "${stdenv.shell} ./Configure";
dontAddPrefix = !crossCompiling;
enableParallelBuilding = !crossCompiling;
preConfigure = optionalString (!crossCompiling) ''
configureFlags="$configureFlags -Dprefix=$out -Dman1dir=$out/share/man/man1 -Dman3dir=$out/share/man/man3"
'' + optionalString (stdenv.isAarch32 || stdenv.isMips) ''
configureFlagsArray=(-Dldflags="-lm -lrt")
'' + optionalString stdenv.isDarwin ''
substituteInPlace hints/darwin.sh --replace "env MACOSX_DEPLOYMENT_TARGET=10.3" ""
'' + optionalString (!enableThreading) ''
# We need to do this because the bootstrap doesn't have a static libpthread
sed -i 's,\(libswanted.*\)pthread,\1,g' Configure
'';
preBuild = optionalString (!(stdenv ? cc && stdenv.cc.nativeTools))
''
# Make Cwd work on NixOS (where we don't have a /bin/pwd).
substituteInPlace dist/PathTools/Cwd.pm --replace "'/bin/pwd'" "'$(type -tP pwd)'"
'';
setupHook = ./setup-hook.sh;
passthru.libPrefix = "lib/perl5/site_perl";
# TODO: it seems like absolute paths to some coreutils is required.
postInstall =
''
# Remove dependency between "out" and "man" outputs.
rm "$out"/lib/perl5/*/*/.packlist
# Remove dependencies on glibc and gcc
sed "/ *libpth =>/c libpth => ' '," \
-i "$out"/lib/perl5/*/*/Config.pm
# TODO: removing those paths would be cleaner than overwriting with nonsense.
substituteInPlace "$out"/lib/perl5/*/*/Config_heavy.pl \
--replace "${libcInc}" /no-such-path \
--replace "${
if stdenv.cc.cc or null != null then stdenv.cc.cc else "/no-such-path"
}" /no-such-path \
--replace "$man" /no-such-path
'' + stdenv.lib.optionalString crossCompiling
''
mkdir -p $dev/lib/perl5/cross_perl/${version}
for dir in cnf/{stub,cpan}; do
cp -r $dir/* $dev/lib/perl5/cross_perl/${version}
done
mkdir -p $dev/bin
install -m755 miniperl $dev/bin/perl
export runtimeArch="$(ls $out/lib/perl5/site_perl/${version})"
# wrapProgram should use a runtime-native SHELL by default, but
# it actually uses a buildtime-native one. If we ever fix that,
# we'll need to fix this to use a buildtime-native one.
#
# Adding the arch-specific directory is morally incorrect, as
# miniperl can't load the native modules there. However, it can
# (and sometimes needs to) load and run some of the pure perl
# code there, so we add it anyway. When needed, stubs can be put
# into $dev/lib/perl5/cross_perl/${version}.
wrapProgram $dev/bin/perl --prefix PERL5LIB : \
"$dev/lib/perl5/cross_perl/${version}:$out/lib/perl5/${version}:$out/lib/perl5/${version}/$runtimeArch"
''; # */
meta = {
homepage = https://www.perl.org/;
description = "The standard implementation of the Perl 5 programmming language";
maintainers = [ maintainers.eelco ];
platforms = platforms.all;
};
} // stdenv.lib.optionalAttrs (stdenv.buildPlatform != stdenv.hostPlatform) rec {
crossVersion = "1.1.8";
perl-cross-src = fetchurlBoot {
url = "https://github.com/arsv/perl-cross/releases/download/${crossVersion}/perl-cross-${crossVersion}.tar.gz";
sha256 = "072j491rpz2qx2sngbg4flqh4lx5865zyql7b9lqm6s1kknjdrh8";
};
# https://github.com/arsv/perl-cross/issues/60
perl-cross-gcc7-patch = fetchpatch {
url = "https://github.com/arsv/perl-cross/commit/07208bc1707b8be3ea170c62c59120020cf0f87f.patch";
sha256 = "1gh8w9m5if2s0lrx2x8f8grp74d1l6d46m8jglpjm5a1kf55j810";
};
depsBuildBuild = [ buildPackages.stdenv.cc makeWrapper ];
postUnpack = ''
unpackFile ${perl-cross-src}
cd perl-cross-*
patch -Np1 -i ${perl-cross-gcc7-patch}
cd ..
cp -R perl-cross-${crossVersion}/* perl-${version}/
'';
configurePlatforms = [ "build" "host" "target" ];
inherit version;
# TODO merge setup hooks
setupHook = ./setup-hook-cross.sh;
});
in rec {
perl = perl524;
perl522 = common {
version = "5.22.4";
sha256 = "1yk1xn4wmnrf2ph02j28khqarpyr24qwysjzkjnjv7vh5dygb7ms";
};
perl524 = common {
version = "5.24.3";
sha256 = "1m2px85kq2fyp2d4rx3bw9kg3car67qfqwrs5vlv96dx0x8rl06b";
};
perl526 = common {
version = "5.26.1";
sha256 = "1p81wwvr5jb81m41d07kfywk5gvbk0axdrnvhc2aghcdbr4alqz7";
};
}