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WIP: cross compile gcc

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This commit is contained in:
Victor Fuentes 2024-08-26 21:51:01 -07:00
parent 6d0463d37d
commit 2040ecc7d9
Signed by: vlinkz
GPG key ID: 0A88B68D6A9ACAE0
8 changed files with 531 additions and 201 deletions
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8
tidepool/src/export.nix
View file

@ -33,7 +33,13 @@ in
# platform.host = lib.modules.overrides.force "x86_64-linux";
# };
cross-aux-a-x86_64-linux = config.packages.cross.x86_64-linux.aux.a;
cross-foundation-gcc-x86_64-linux = config.packages.cross.x86_64-linux.foundation.gcc;
cross-foundation-gcc-newlib-x86_64-linux = config.packages.cross-tools.x86_64-linux.foundation.gcc-newlib;
cross-foundation-binutils-x86_64-linux = config.packages.cross-tools.x86_64-linux.foundation.binutils;
cross-foundation-glibc-x86_64-linux = config.packages.cross.x86_64-linux.foundation.glibc;
cross-foundation-gcc-x86_64-linux = config.packages.cross-tools.x86_64-linux.foundation.gcc;
example-a = config.packages.foundation.gcc.versions.latest.extend {
platform = {

44
tidepool/src/packages/default.nix
View file

@ -4,7 +4,7 @@ let
doubles = lib.systems.doubles.all;
packages = builtins.removeAttrs config.packages [ "cross" ];
packages = builtins.removeAttrs config.packages [ "cross" "cross-tools" ];
in
{
includes = [
@ -21,6 +21,14 @@ in
freeform = lib.types.packages;
options = {
cross-tools = lib.attrs.generate doubles (
system:
lib.options.create {
description = "The cross-compilation tools for the ${system} target.";
type = lib.types.packages;
default.value = { };
}
);
cross = lib.attrs.generate doubles (
system:
lib.options.create {
@ -54,6 +62,36 @@ in
};
config = {
packages.cross-tools = lib.attrs.generate doubles (
system:
builtins.mapAttrs
(
namespace:
builtins.mapAttrs (
name: alias:
let
setTarget =
package:
package
// {
__modules__ = package.__modules__ ++ [
{
config.platform = {
target = lib.modules.override 5 system;
};
}
];
};
updated = alias // {
versions = builtins.mapAttrs (version: package: setTarget package) alias.versions;
};
in
updated
)
)
packages
);
packages.cross = lib.attrs.generate doubles (
system:
builtins.mapAttrs
@ -62,7 +100,7 @@ in
builtins.mapAttrs (
name: alias:
let
setHost =
setPlatform =
package:
package
// {
@ -77,7 +115,7 @@ in
};
updated = alias // {
versions = builtins.mapAttrs (version: package: setHost package) alias.versions;
versions = builtins.mapAttrs (version: package: setPlatform package) alias.versions;
};
in
updated

14
tidepool/src/packages/foundation/binutils/default.nix
View file

@ -33,10 +33,11 @@ in
isHostBootstrapped = config.platform.host.double == "i686-linux";
isBootstrapped = isBuildBootstrapped && isHostBootstrapped;
in
{
meta = {
platforms = [ "i686-linux" ];
platforms = [ "i686-linux" "x86_64-linux" ];
};
pname = "binutils";
@ -48,13 +49,19 @@ in
build = {
only = {
gcc = lib.modules.when (!isBootstrapped) packages.foundation.gcc;
# gcc = lib.modules.when (isCross) (packages.foundation.gcc.versions.latest.extend {
# platform = lib.modules.override 0 {
# inherit (config.platform) host target;
# build = config.platform.target;
# };
# });
};
};
};
env = {
PATH = lib.paths.bin (
lib.lists.when isBootstrapped
lib.lists.when (isBootstrapped)
[ foundation.stage2-gcc ]
++ [
foundation.stage2-gcc
@ -116,6 +123,9 @@ in
'';
configure = ''
echo "BUILD: ${config.platform.build.triple}"
echo "HOST: ${config.platform.host.triple}"
echo "TARGET: ${config.platform.target.triple}"
bash ./configure ${builtins.concatStringsSep " " configureFlags}
'';

110
tidepool/src/packages/foundation/gcc/default.nix
View file

@ -11,6 +11,10 @@ let
;
in
{
includes = [
./newlib.nix
];
config.packages.context.options = {
"foundation:cflags" = lib.options.create {
type = lib.types.list.of lib.types.string;
@ -101,53 +105,24 @@ in
builder = builders.basic;
# hooks = ctx: let
#
# in {
# "aux:gcc:env" = lib.dag.entry.before [ "unpack" ] ''
#
# '';
# };
deps =
let
platform =
if !isBuildBootstrapped then
{
build = "i686-linux";
host = lib.modules.override 0 config.platform.build.triple;
target = lib.modules.override 0 config.platform.build.triple;
}
else
{
build = "i686-linux";
host = "i686-linux";
target = lib.modules.override 0 config.platform.host.triple;
};
in
{
deps = {
build = {
only = {
gcc =
lib.modules.when
(!isBootstrapped)
(packages.foundation.gcc.versions.latest.extend {
inherit platform;
build = {
binutils = (packages.foundation.binutils.versions.latest.extend {
platform = lib.modules.override 0 config.platform;
});
glibc = (packages.foundation.glibc.versions.latest.extend {
platform = lib.modules.override 0 {
inherit (config.platform) build target;
host = config.platform.target;
};
});
linux-headers = (packages.foundation.linux-headers.versions.latest.extend {
platform.target = lib.modules.override 0 config.platform.target;
});
};
build = {
binutils = packages.foundation.binutils;
linux-headers = packages.foundation.linux-headers;
glibc = packages.foundation.glibc;
};
};
};
hooks = ctx: {
"aux:compiler:setup" = lib.dag.entry.before [ "unpack" ] ''
: ''${AUX_COMPILER_LIBRARY_PATH:=}
'';
};
env = {
PATH = lib.paths.bin (
@ -155,12 +130,13 @@ in
(isBootstrapped)
[
foundation.stage2-gcc
# foundation.stage2-binutils
foundation.stage2-binutils
]
++ [
foundation.stage2-gnumake
foundation.stage2-gnused
foundation.stage2-gnugrep
foundation.stage2-gnupatch
foundation.stage2-gawk
foundation.stage2-diffutils
foundation.stage2-findutils
@ -172,19 +148,12 @@ in
);
};
phases =
let
host = lib.systems.withBuildInfo config.platform.host;
compiler = if isBootstrapped then "gcc" else "${config.platform.build.triple}-gcc";
mbits = if host.system.cpu.family == "x86" then if host.is64bit then "-m64" else "-m32" else "";
in
{
"aux:compiler:setup" = ''
: ''${AUX_COMPILER_LIBRARY_PATH:=}
'';
phases = let
patches = [
# Make binutils output deterministic by default.
./patches/libstdc++-target.patch
];
in {
unpack = ''
# Unpack
tar xf ${config.src}
@ -201,33 +170,44 @@ in
'';
patch = ''
# Patch
# force musl even if host triple is gnu
sed -i 's|"os/gnu-linux"|"os/generic"|' libstdc++-v3/configure.host
${lib.strings.concatMapSep "\n" (file: "patch -Np1 -i ${file}") patches}
'';
configure = ''
# Configure
export CC="gcc -Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export CXX="g++ -Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export CFLAGS_FOR_TARGET="-Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export CFLAGS_FOR_TARGET=""
export LIBRARY_PATH="${foundation.stage1-musl}/lib"
export LDFLAGS_FOR_TARGET="-L${config.deps.build.build.glibc.package}/lib"
export LDFLAGS_FOR_TARGET="$LDFLAGS_FOR_TARGET -B${config.deps.build.build.glibc.package}/lib"
export LDFLAGS_FOR_TARGET="$LDFLAGS_FOR_TARGET -I${config.deps.build.build.linux-headers.package}/lib"
bash ./configure \
mkdir build
cd build
# TODO(vlinkz) Hack to fix missing crti.o and crtn.o. Figure out how to properly find their paths.
mkdir gcc
ln -sv ${config.deps.build.build.glibc.package}/lib/{crti.o,crtn.o} gcc
mkdir -p x86_64-unknown-linux-gnu/libstdc++-v3/src
ln -sv ${config.deps.build.build.glibc.package}/lib/{crti.o,crtn.o} x86_64-unknown-linux-gnu/libstdc++-v3/src
bash ../configure \
--prefix=$out \
--build=${config.platform.build.triple} \
--host=${config.platform.host.triple} \
--target=${config.platform.target.triple} \
--with-sysroot=${foundation.stage1-musl} \
--with-native-system-header-dir=/include \
--with-as=${config.deps.build.build.binutils.package}/bin/${config.platform.target.triple}-as \
--with-ld=${config.deps.build.build.binutils.package}/bin/${config.platform.target.triple}-ld \
--enable-languages=c,c++ \
--disable-bootstrap \
--disable-libsanitizer \
--disable-lto \
--disable-multilib \
--disable-plugin \
CFLAGS=-static \
CXXFLAGS=-static
--with-headers=${config.deps.build.build.glibc.package}/include \
--with-build-sysroot=/ \
LDFLAGS_FOR_TARGET="-L$(pwd)/${config.platform.target.triple}/libgcc $LDFLAGS_FOR_TARGET"
'';
build = ''

240
tidepool/src/packages/foundation/gcc/newlib.nix Normal file
View file

@ -0,0 +1,240 @@
{ config, options }:
let
inherit (config)
lib
mirrors
builders
# These are the upstream foundational packages exported from the Aux Foundation project.
foundation
packages
;
in
{
config.packages.foundation.gcc-newlib = {
versions = {
"latest" =
{ config, meta }:
{
options = {
src = lib.options.create {
type = lib.types.derivation;
description = "Source for the package.";
};
cc = {
src = lib.options.create {
type = lib.types.derivation;
description = "The cc source for the package.";
};
};
gmp = {
src = lib.options.create {
type = lib.types.derivation;
description = "The gmp source for the package.";
};
version = lib.options.create {
type = lib.types.string;
description = "Version of gmp.";
};
};
mpfr = {
src = lib.options.create {
type = lib.types.derivation;
description = "The mpfr source for the package.";
};
version = lib.options.create {
type = lib.types.string;
description = "Version of mpfr.";
};
};
mpc = {
src = lib.options.create {
type = lib.types.derivation;
description = "The mpc source for the package.";
};
version = lib.options.create {
type = lib.types.string;
description = "Version of mpc.";
};
};
isl = {
src = lib.options.create {
type = lib.types.derivation;
description = "The isl source for the package.";
};
version = lib.options.create {
type = lib.types.string;
description = "Version of isl.";
};
};
};
config =
let
isBuildBootstrapped = config.platform.build.double == "i686-linux";
isHostBootstrapped = config.platform.host.double == "i686-linux";
isBootstrapped = isBuildBootstrapped && isHostBootstrapped;
in
{
meta = {
platforms = [ "i686-linux" ];
};
pname = "gcc-${config.platform.build.double}--${config.platform.host.double}--${config.platform.target.double}";
version = "13.2.0";
builder = builders.basic;
deps = {
build = {
build = {
binutils = (packages.foundation.binutils.versions.latest.extend {
platform = lib.modules.override 0 config.platform;
});
};
};
};
env = {
PATH = lib.paths.bin (
lib.lists.when
(isBootstrapped)
[
foundation.stage2-gcc
foundation.stage2-binutils
]
++ [
foundation.stage2-gnumake
foundation.stage2-gnused
foundation.stage2-gnugrep
foundation.stage2-gawk
foundation.stage2-diffutils
foundation.stage2-findutils
foundation.stage2-gnutar
foundation.stage2-gzip
foundation.stage2-bzip2
foundation.stage1-xz
]
);
};
phases = {
unpack = ''
# Unpack
tar xf ${config.src}
tar xf ${config.gmp.src}
tar xf ${config.mpfr.src}
tar xf ${config.mpc.src}
tar xf ${config.isl.src}
cd gcc-${config.version}
ln -s ../gmp-${config.gmp.version} gmp
ln -s ../mpfr-${config.mpfr.version} mpfr
ln -s ../mpc-${config.mpc.version} mpc
ln -s ../isl-${config.isl.version} isl
'';
patch = ''
# Patch
# force musl even if host triple is gnu
sed -i 's|"os/gnu-linux"|"os/generic"|' libstdc++-v3/configure.host
'';
configure = ''
# Configure
export CC="gcc -Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export CXX="g++ -Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export CFLAGS_FOR_TARGET="-Wl,-dynamic-linker -Wl,${foundation.stage1-musl}/lib/libc.so"
export LIBRARY_PATH="${foundation.stage1-musl}/lib"
mkdir build
cd build
bash ../configure \
--prefix=$out \
--build=${config.platform.build.triple} \
--host=${config.platform.host.triple} \
--target=${config.platform.target.triple} \
--with-as=${config.deps.build.build.binutils.package}/bin/${config.platform.target.triple}-as \
--with-ld=${config.deps.build.build.binutils.package}/bin/${config.platform.target.triple}-ld \
--enable-languages=c,c++ \
--disable-bootstrap \
--disable-libsanitizer \
--disable-lto \
--disable-multilib \
--disable-plugin \
--disable-libssp \
--disable-libvtv \
--disable-libstdcxx \
--disable-libquadmath \
--disable-threads \
--disable-decimal-float \
--disable-shared \
--disable-libmudflap \
--disable-libgomp \
--disable-libatomic \
--without-headers \
--with-newlib
'';
build = ''
# Build
make -j $NIX_BUILD_CORES
'';
install = ''
# Install
make -j $NIX_BUILD_CORES install
'';
};
src = builtins.fetchurl {
url = "${mirrors.gnu}/gcc/gcc-${config.version}/gcc-${config.version}.tar.xz";
sha256 = "4nXnZEKmBnNBon8Exca4PYYTFEAEwEE1KIY9xrXHQ9o=";
};
gmp = {
version = "6.3.0";
src = builtins.fetchurl {
url = "${mirrors.gnu}/gmp/gmp-${config.gmp.version}.tar.xz";
sha256 = "o8K4AgG4nmhhb0rTC8Zq7kknw85Q4zkpyoGdXENTiJg=";
};
};
mpfr = {
version = "4.2.1";
src = builtins.fetchurl {
url = "${mirrors.gnu}/mpfr/mpfr-${config.mpfr.version}.tar.xz";
sha256 = "J3gHNTpnJpeJlpRa8T5Sgp46vXqaW3+yeTiU4Y8fy7I=";
};
};
mpc = {
version = "1.3.1";
src = builtins.fetchurl {
url = "${mirrors.gnu}/mpc/mpc-${config.mpc.version}.tar.gz";
sha256 = "q2QkkvXPiCt0qgy3MM1BCoHtzb7IlRg86TDnBsHHWbg=";
};
};
isl = {
version = "0.24";
src = builtins.fetchurl {
url = "https://gcc.gnu.org/pub/gcc/infrastructure/isl-${config.isl.version}.tar.bz2";
sha256 = "/PeN2WVsEOuM+fvV9ZoLawE4YgX+GTSzsoegoYmBRcA=";
};
};
};
};
};
};
}

33
tidepool/src/packages/foundation/gcc/patches/libstdc++-target.patch Normal file
View file

@ -0,0 +1,33 @@
# From https://github.com/NixOS/nixpkgs/blob/nixos-24.05/pkgs/development/compilers/gcc/patches/libstdc%2B%2B-target.patch
Patch to make the target libraries 'configure' scripts find the proper CPP.
I noticed that building the mingw32 cross compiler.
Looking at the build script for mingw in archlinux, I think that only nixos
needs this patch. I don't know why.
diff --git a/Makefile.in b/Makefile.in
index 93f66b6..d691917 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -266,6 +266,7 @@ BASE_TARGET_EXPORTS = \
AR="$(AR_FOR_TARGET)"; export AR; \
AS="$(COMPILER_AS_FOR_TARGET)"; export AS; \
CC="$(CC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS"; export CC; \
+ CPP="$(CC_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS -E"; export CC; \
CFLAGS="$(CFLAGS_FOR_TARGET)"; export CFLAGS; \
CONFIG_SHELL="$(SHELL)"; export CONFIG_SHELL; \
CPPFLAGS="$(CPPFLAGS_FOR_TARGET)"; export CPPFLAGS; \
@@ -291,11 +292,13 @@ BASE_TARGET_EXPORTS = \
RAW_CXX_TARGET_EXPORTS = \
$(BASE_TARGET_EXPORTS) \
CXX_FOR_TARGET="$(RAW_CXX_FOR_TARGET)"; export CXX_FOR_TARGET; \
- CXX="$(RAW_CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS"; export CXX;
+ CXX="$(RAW_CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS"; export CXX; \
+ CXXCPP="$(RAW_CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS -E"; export CXX;
NORMAL_TARGET_EXPORTS = \
$(BASE_TARGET_EXPORTS) \
- CXX="$(CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS"; export CXX;
+ CXX="$(CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS"; export CXX; \
+ CXXCPP="$(CXX_FOR_TARGET) $(XGCC_FLAGS_FOR_TARGET) $$TFLAGS -E"; export CXX;
# Where to find GMP
HOST_GMPLIBS = @gmplibs@

87
tidepool/src/packages/foundation/glibc/default.nix
View file

@ -1,8 +1,9 @@
{
lib,
lib',
config,
options,
{ lib
, lib'
, config
, options
, packages
,
}:
let
inherit (config)
@ -10,6 +11,7 @@ let
builders
# These are the upstream foundational packages exported from the Aux Foundation project.
packages
foundation
;
in
@ -26,12 +28,17 @@ in
};
};
config = {
config =
let
isCross = (config.platform.build.triple != config.platform.host.triple) && (config.platform.host.triple == config.platform.target.triple);
in
{
meta = {
platforms = [ "i686-linux" ];
platforms = [ "i686-linux" "x86_64-linux" ];
};
pname = "gcc";
pname = "glibc";
version = "2.38";
src = builtins.fetchurl {
@ -41,10 +48,14 @@ in
builder = builders.basic;
hooks = ctx: {
"aux:glibc:env" = lib.dag.entry.between ["aux:compiler:setup"] ["configure"] ''
AUX_COMPILER_LIBRARY_PATH="${config.package}/lib:$AUX_COMPILER_LIBRARY_PATH"
'';
deps = {
build ={
host = {
linux-headers = (packages.foundation.linux-headers.versions.latest.extend {
platform.target = lib.modules.override 0 config.platform.target;
});
};
};
};
env = {
@ -52,25 +63,21 @@ in
let
gcc =
if
config.platform.build.triple == config.platform.host.triple
# If we're on the same system then we can use the existing GCC instance.
then
foundation.stage2-gcc
isCross
# Otherwise we are going to need a cross-compiler.
then
(packages.foundation.gcc-newlib.versions.latest.extend {
platform = lib.modules.override 0 {
inherit (config.platform) build target;
host = config.platform.build;
};
}).package
# If we're on the same system then we can use the existing GCC instance.
else
(meta.extend (args: {
config = {
platform = {
build = config.platform.build.triple;
host = config.platform.build.triple;
target = lib.modules.override.force config.platform.host.triple;
};
};
})).config.package;
foundation.stage2-gcc;
in
lib.paths.bin [
foundation.stage2-gcc
foundation.stage2-binutils
gcc
foundation.stage2-gnumake
foundation.stage2-gnused
foundation.stage2-gnugrep
@ -86,7 +93,22 @@ in
];
};
phases = {
phases =
let
binutils =
if
isCross
then
"${(packages.foundation.binutils.versions.latest.extend {
platform = lib.modules.override 0 {
inherit (config.platform) build target;
host = config.platform.build;
};
}).package}/${config.platform.target.triple}"
else
foundation.stage2-binutils;
in
{
unpack = ''
tar xf ${config.src}
cd glibc-${config.version}
@ -95,13 +117,13 @@ in
configure = ''
mkdir build
cd build
# libstdc++.so is built against musl and fails to link
export CXX=false
bash ../configure \
--prefix=$out \
--build=${config.platform.build.triple} \
--host=${config.platform.host.triple} \
--with-headers=${foundation.stage1-linux-headers}/include
--with-headers=${config.deps.build.host.linux-headers.package}/include \
--with-binutils=${binutils}/bin
'';
build = ''
@ -111,7 +133,8 @@ in
install = ''
# Install
make -j $NIX_BUILD_CORES INSTALL_UNCOMPRESSED=yes install
make -j $NIX_BUILD_CORES install
ln -sv $(ls -d ${config.deps.build.host.linux-headers.package}/include/* | grep -v scsi\$) $out/include/
'';
};
};

14
tidepool/src/packages/foundation/linux-headers/default.nix
View file

@ -1,8 +1,8 @@
{
lib,
lib',
config,
options,
{ lib
, lib'
, config
, options
,
}:
let
inherit (config)
@ -28,7 +28,7 @@ in
config = {
meta = {
platforms = [ "i686-linux" ];
platforms = [ "x86_64-linux" "i686-linux" ];
};
pname = "linux-headers";
@ -60,7 +60,7 @@ in
'';
build = ''
make -j $NIX_BUILD_CORES CC=musl-gcc HOSTCC=musl-gcc ARCH=${config.platform.host.linux.arch} headers
make -j $NIX_BUILD_CORES CC=musl-gcc HOSTCC=musl-gcc ARCH=${config.platform.target.linux.arch} headers
'';
install = ''