cf1b7c4d5c
librdimon.a is only available on ARM architectures, therefore building newlib-nano for other architectures (e.g. RISC-V) fails presently. This commit fixes this issue by only copying the library files that actually exist in the for loop body. Alternatively, it would be theoretically feasible to change the libraries iterated over based on the targeted architecture.
101 lines
3.5 KiB
Nix
101 lines
3.5 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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# Some libraries are only available for specific architectures.
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# For example, librdimon.a is only available on ARM.
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[ -f "$f" ] && cp "$f" "''${f%%\.a}_nano.a"
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done
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)
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'' + ''[ "$(find $out -type f | wc -l)" -gt 0 ] || (echo '$out is empty' 1>&2 && exit 1)'';
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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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