1 files changed, 116 insertions, 0 deletions
diff --git a/pkgs/os-specific/linux/minimal-bootstrap/musl/1.1.nix b/pkgs/os-specific/linux/minimal-bootstrap/musl/1.1.nix
new file mode 100644
index 00000000000..704ee42edeb
--- /dev/null
+++ b/pkgs/os-specific/linux/minimal-bootstrap/musl/1.1.nix
@@ -0,0 +1,116 @@
+{ lib
+, buildPlatform
+, hostPlatform
+, fetchurl
+, bash
+, tinycc
+, gnumake
+, gnupatch
+, gnused
+, gnugrep
+, gnutar
+, gzip
+}:
+
+let
+  inherit (import ./common.nix { inherit lib; }) pname meta;
+  version = "1.1.24";
+
+  src = fetchurl {
+    url = "https://musl.libc.org/releases/musl-${version}.tar.gz";
+    hash = "sha256-E3DJqBKyzyp9koAlEMygBYzDfmanvt1wBR8KNAFQIqM=";
+  };
+
+  # Thanks to the live-bootstrap project!
+  # See https://github.com/fosslinux/live-bootstrap/blob/d98f97e21413efc32c770d0356f1feda66025686/sysa/musl-1.1.24/musl-1.1.24.sh
+  liveBootstrap = "https://github.com/fosslinux/live-bootstrap/raw/d98f97e21413efc32c770d0356f1feda66025686/sysa/musl-1.1.24";
+  patches = [
+    (fetchurl {
+      url = "${liveBootstrap}/patches/avoid_set_thread_area.patch";
+      hash = "sha256-TsbBZXk4/KMZG9EKi7cF+sullVXrxlizLNH0UHGXsPs=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/avoid_sys_clone.patch";
+      hash = "sha256-/ZmH64J57MmbxdfQ4RNjamAiBdkImMTlHsHdgV4gMj4=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/fenv.patch";
+      hash = "sha256-vMVGjoN4deAJW5gsSqA207SJqAbvhrnOsGK49DdEiTI=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/makefile.patch";
+      hash = "sha256-03iYBAUnsrEdLIIhhhq5mM6BGnPn2EfUmIHu51opxbw=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/musl_weak_symbols.patch";
+      hash = "sha256-/d9a2eUkpe9uyi1ye6T4CiYc9MR3FZ9na0Gb90+g4v0=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/set_thread_area.patch";
+      hash = "sha256-RIZYqbbRSx4X/0iFUhriwwBRmoXVR295GNBUjf2UrM0=";
+    })
+    (fetchurl {
+      url = "${liveBootstrap}/patches/sigsetjmp.patch";
+      hash = "sha256-wd2Aev1zPJXy3q933aiup5p1IMKzVJBquAyl3gbK4PU=";
+    })
+    # FIXME: this patch causes the build to fail
+    # (fetchurl {
+    #   url = "${liveBootstrap}/patches/stdio_flush_on_exit.patch";
+    #   hash = "sha256-/z5ze3h3QTysay8nRvyvwPv3pmTcKptdkBIaMCoeLDg=";
+    # })
+    # HACK: always flush stdio immediately
+    ./always-flush.patch
+    (fetchurl {
+      url = "${liveBootstrap}/patches/va_list.patch";
+      hash = "sha256-UmcMIl+YCi3wIeVvjbsCyqFlkyYsM4ECNwTfXP+s7vg=";
+    })
+  ];
+in
+bash.runCommand "${pname}-${version}" {
+  inherit pname version meta;
+
+  nativeBuildInputs = [
+    tinycc.compiler
+    gnumake
+    gnupatch
+    gnused
+    gnugrep
+    gnutar
+    gzip
+  ];
+} ''
+  # Unpack
+  tar xzf ${src}
+  cd musl-${version}
+
+  # Patch
+  ${lib.concatMapStringsSep "\n" (f: "patch -Np0 -i ${f}") patches}
+  # tcc does not support complex types
+  rm -rf src/complex
+  # Configure fails without this
+  mkdir -p /dev
+  # https://github.com/ZilchOS/bootstrap-from-tcc/blob/2e0c68c36b3437386f786d619bc9a16177f2e149/using-nix/2a3-intermediate-musl.nix
+  sed -i 's|/bin/sh|${bash}/bin/bash|' \
+    tools/*.sh
+  chmod 755 tools/*.sh
+  # patch popen/system to search in PATH instead of hardcoding /bin/sh
+  sed -i 's|posix_spawn(&pid, "/bin/sh",|posix_spawnp(\&pid, "sh",|' \
+    src/stdio/popen.c src/process/system.c
+  sed -i 's|execl("/bin/sh", "sh", "-c",|execlp("sh", "-c",|'\
+    src/misc/wordexp.c
+
+  # Configure
+  bash ./configure \
+    --prefix=$out \
+    --build=${buildPlatform.config} \
+    --host=${hostPlatform.config} \
+    --disable-shared \
+    CC=tcc
+
+  # Build
+  make AR="tcc -ar" RANLIB=true CFLAGS="-DSYSCALL_NO_TLS"
+
+  # Install
+  make install
+  cp ${tinycc.libs}/lib/libtcc1.a $out/lib
+''