99 lines
3.3 KiB
Nix
99 lines
3.3 KiB
Nix
{ stdenv, fetchurl, buildPackages, lib, fetchpatch, texinfo
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, # "newlib-nano" is what the official ARM embedded toolchain calls this build
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# configuration that prioritizes low space usage. We include it as a preset
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# for embedded projects striving for a similar configuration.
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nanoizeNewlib ? false
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}:
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stdenv.mkDerivation (finalAttrs: {
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pname = "newlib";
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version = "4.3.0.20230120";
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src = fetchurl {
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url = "ftp://sourceware.org/pub/newlib/newlib-${finalAttrs.version}.tar.gz";
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sha256 = "sha256-g6Yqma9Z4465sMWO0JLuJNcA//Q6IsA+QzlVET7zUVA=";
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};
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patches = lib.optionals nanoizeNewlib [
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# https://bugs.gentoo.org/723756
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(fetchpatch {
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name = "newlib-3.3.0-no-nano-cxx.patch";
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url = "https://gitweb.gentoo.org/repo/gentoo.git/plain/sys-libs/newlib/files/newlib-3.3.0-no-nano-cxx.patch?id=9ee5a1cd6f8da6d084b93b3dbd2e8022a147cfbf";
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sha256 = "sha256-S3mf7vwrzSMWZIGE+d61UDH+/SK/ao1hTPee1sElgco=";
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})
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];
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depsBuildBuild = [
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buildPackages.stdenv.cc
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texinfo # for makeinfo
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];
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# newlib expects CC to build for build platform, not host platform
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preConfigure = ''
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export CC=cc
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'';
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configurePlatforms = [ "build" "target" ];
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# flags copied from https://community.arm.com/support-forums/f/compilers-and-libraries-forum/53310/gcc-arm-none-eabi-what-were-the-newlib-compilation-options
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# sort alphabetically
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configureFlags = [
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"--host=${stdenv.buildPlatform.config}"
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] ++ (if !nanoizeNewlib then [
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"--disable-newlib-supplied-syscalls"
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"--disable-nls"
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"--enable-newlib-io-c99-formats"
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"--enable-newlib-io-long-long"
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"--enable-newlib-reent-check-verify"
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"--enable-newlib-register-fini"
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"--enable-newlib-retargetable-locking"
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] else [
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"--disable-newlib-fseek-optimization"
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"--disable-newlib-fvwrite-in-streamio"
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"--disable-newlib-supplied-syscalls"
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"--disable-newlib-unbuf-stream-opt"
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"--disable-newlib-wide-orient"
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"--disable-nls"
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"--enable-lite-exit"
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"--enable-newlib-global-atexit"
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"--enable-newlib-nano-formatted-io"
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"--enable-newlib-nano-malloc"
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"--enable-newlib-reent-check-verify"
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"--enable-newlib-reent-small"
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"--enable-newlib-retargetable-locking"
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]);
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dontDisableStatic = true;
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# apply necessary nano changes from https://developer.arm.com/-/media/Files/downloads/gnu/12.2.rel1/manifest/copy_nano_libraries.sh?rev=4c50be6ccb9c4205a5262a3925317073&hash=1375A7B0A1CD0DB9B9EB0D2B574ADF66
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postInstall = lib.optionalString nanoizeNewlib ''
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mkdir -p $out${finalAttrs.passthru.incdir}/newlib-nano
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cp $out${finalAttrs.passthru.incdir}/newlib.h $out${finalAttrs.passthru.incdir}/newlib-nano/
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(
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cd $out${finalAttrs.passthru.libdir}
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for f in librdimon.a libc.a libg.a; do
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cp "$f" "''${f%%\.a}_nano.a"
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done
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)
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'';
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passthru = {
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incdir = "/${stdenv.targetPlatform.config}/include";
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libdir = "/${stdenv.targetPlatform.config}/lib";
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};
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meta = with lib; {
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description = "a C library intended for use on embedded systems";
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homepage = "https://sourceware.org/newlib/";
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# arch has "bsd" while gentoo has "NEWLIB LIBGLOSS GPL-2" while COPYING has "gpl2"
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# there are 5 copying files in total
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# COPYING
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# COPYING.LIB
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# COPYING.LIBGLOSS
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# COPYING.NEWLIB
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# COPYING3
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license = licenses.gpl2Plus;
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};
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})
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