Merge pull request #13143 from onlinemediagroup/ios_cross_compiler

ios-cross-compile: init at Feb 16, 2016

5 files changed, 432 insertions, 0 deletions

diff --git a/lib/maintainers.nix b/lib/maintainers.nix
index ef1b66e4d3da4..ad5693f42c31a 100644
--- a/lib/maintainers.nix
+++ b/lib/maintainers.nix
@@ -123,6 +123,7 @@
   ftrvxmtrx = "Siarhei Zirukin <ftrvxmtrx@gmail.com>";
   funfunctor = "Edward O'Callaghan <eocallaghan@alterapraxis.com>";
   fuuzetsu = "Mateusz Kowalczyk <fuuzetsu@fuuzetsu.co.uk>";
+  fxfactorial = "Edgar Aroutiounian <edgar.factorial@gmail.com>";
   gal_bolle = "Florent Becker <florent.becker@ens-lyon.org>";
   garbas = "Rok Garbas <rok@garbas.si>";
   garrison = "Jim Garrison <jim@garrison.cc>";
diff --git a/pkgs/development/compilers/ios-cross-compile/9.2.nix b/pkgs/development/compilers/ios-cross-compile/9.2.nix
new file mode 100644
index 0000000000000..5ec24e01617af
--- /dev/null
+++ b/pkgs/development/compilers/ios-cross-compile/9.2.nix
@@ -0,0 +1,64 @@
+{ stdenv, git, clang,
+  fetchFromGitHub, requireFile,
+  openssl, xz, gnutar, gcc,
+  automake, autoconf, libtool, clangStdenv } :
+
+clangStdenv.mkDerivation rec {
+  name = "ios-cross-compile-${version}";
+  version = "9.2";
+  sdk = "iPhoneOS9.2.sdk";
+  cctools_port = fetchFromGitHub {
+    owner = "tpoechtrager";
+    repo = "cctools-port";
+    rev = "7d405492b09fa27546caaa989b8493829365deab";
+    sha256 = "0nj1q5bqdx5jm68dispybxc7wnkb6p8p2igpnap9q6qyv2r9p07w";
+  };
+  ldid = fetchFromGitHub {
+    owner = "tpoechtrager";
+    repo = "ldid";
+    rev = "3064ed628108da4b9a52cfbe5d4c1a5817811400";
+    sha256 = "1a6zaz8fgbi239l5zqx9xi3hsrv3jmfh8dkiy5gmnjs6v4gcf6sf";
+  };
+  src = requireFile rec {
+    name = "iPhoneOS9.2.sdk.tar.xz";
+    sha256 = "1l2h3cic9psrq3nmfv9aaxkdk8y2pvr0iq6apj87mb3ms9a4cqrq";
+    message = ''
+      You need to do the following steps to get a prepared
+      ios tarball.
+
+      1) Download an XCode dmg, specifically XCode_7.2.dmg
+      2) Install darling-dmg, available via: nix-env -i darling-dmg
+      3) Follow this shell history:
+
+      $ cd ~/
+      $ mkdir xcode
+      $ darling-dmg Xcode_7.2dmg xcode
+      $ cd xcode/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/SDKs
+      $ mktemp -d
+        /tmp/gar/tmp.4ZZ8kqyfqp/
+      $ mkdir /tmp/gar/tmp.4ZZ8kqyfqp/iPhoneOS9.2.sdk
+      $ cp -r iPhoneOS.sdk/* /tmp/gar/tmp.4ZZ8kqyfqp/iPhoneOS9.2.sdk
+      $ cp -r ../../../../Toolchains/XcodeDefault.xctoolchain/usr/include/c++/* \
+        /tmp/gar/tmp.4ZZ8kqyfqp/iPhoneOS9.2.sdk/usr/include/c++
+      $ tar -cf - * | xz -9 -c - > iPhoneOS9.2.sdk.tar.xz
+      $ cd ~/
+      $ fusermount -u xcode
+
+      Then do:
+
+      nix-prefetch-url file:///path/to/${name}
+
+      and run this installation again.
+   '';
+  };
+  buildInputs = [ git xz gnutar openssl automake autoconf libtool clang ];
+  alt_wrapper = ./alt_wrapper.c;
+  builder = ./9.2_builder.sh;
+  meta = {
+    description =
+    "Provides an iOS cross compiler from 7.1 up to iOS-${version} and ldid";
+    platforms = stdenv.lib.platforms.linux;
+    maintainers = with stdenv.lib.maintainers; [ fxfactorial ];
+    license = stdenv.lib.licenses.gpl2;
+  };
+}
diff --git a/pkgs/development/compilers/ios-cross-compile/9.2_builder.sh b/pkgs/development/compilers/ios-cross-compile/9.2_builder.sh
new file mode 100644
index 0000000000000..4604b1fdea727
--- /dev/null
+++ b/pkgs/development/compilers/ios-cross-compile/9.2_builder.sh
@@ -0,0 +1,153 @@
+# -*- shell-script -*-
+source $stdenv/setup
+
+function extract
+{
+    printf "extracting $(basename $1) ...\n"
+    local tarflags="xf"
+
+    case "$1" in
+        *.tar.xz)
+	    xz -dc $1 | tar "$tarflags" - ;;
+	*)
+	    printf "Make sure you give a iPhoneOS9.2.sdk.tar.xz file \n" ;;
+    esac
+}
+
+function verify_arch {
+    case "$1" in
+	# Our good arches.
+	armv7|arm64) ;;
+	*)
+	    local
+	    acc="armv7 | arm64"
+	    error_message=$(
+		printf '%s is not an acceptable arch. Try one of %s' "$1" "$acc"
+			 )
+	    printf "$error_message\n"
+	    exit
+    esac
+}
+
+function verify_sdk_version {
+    sdk_version=$(basename "$1" | grep -P -o "[0-9].[0-9]+")
+    case "$sdk_version" in
+	# Make sure the SDK is correct.
+	[5-9].[0-9]) ;;
+	*)
+	    printf 'No iPhone SDK version in file name\n'
+    esac
+}
+
+function do_build {
+
+    if [ $# -lt 2 ]; then
+	printf "usage: $0 iPhoneOS.sdk.tar* <target cpu>\n" 1>&2
+	printf "i.e. $0 /path/to/iPhoneOS.sdk.tar.xz armv7\n" 1>&2
+	exit 1
+    fi
+
+    mkdir -p $out
+
+    chmod -R 755 "$cctools_port"
+
+    pushd "$cctools_port"/usage_examples/ios_toolchain &> /dev/null
+
+    export LC_ALL=C
+    
+    local
+    triple='%s-apple-darwin11'
+    target_dir="$PWD/target"
+    sdk_dir="$target_dir/SDK"
+    platform="$(uname -s)"
+    # Will be mutated by verify_sdk_version
+    sdk_version=
+
+    mkdir -p "$target_dir"
+    mkdir -p "$target_dir/bin"
+    mkdir -p "$sdk_dir"
+
+    verify_arch "$2"
+    verify_sdk_version "$1"
+
+    triple="$(printf "$triple" "$2")"
+    pushd "$sdk_dir" &>/dev/null
+    extract "$1"
+
+    local sys_lib=$(
+    	find $sdk_dir -name libSystem.dylib -o -name libSystem.tbd | head -n1
+    	  )
+
+    if [ -z "$sys_lib" ]; then
+    	printf "SDK should contain libSystem{.dylib,.tbd}\n" 1>&2
+    	exit 1
+    fi
+
+    local sys_root=$(readlink -f "$(dirname $sys_lib)/../..")
+
+    local sdk_unboxed=$(basename $sys_root)
+
+    mv -f "$sys_root"/* "$sdk_dir" || true
+
+    popd &>/dev/null
+
+    printf "\nbuilding wrapper\n"
+
+    printf "int main(){return 0;}" | clang -xc -O2 -o "$target_dir"/bin/dsymutil -
+
+    clang -O2 -std=c99 $alt_wrapper \
+    	  -DTARGET_CPU=$(printf '"%s"' "$2") \
+    	  -DNIX_APPLE_HDRS=$(
+    	printf '"%s"' "-I$out/$sdk/usr/include"
+    	  ) \
+    	  -DNIX_APPLE_FRAMEWORKS=$(
+    	printf '"%s"' "$out/$sdk/System/Library/Frameworks"
+    	  ) \
+    	  -DNIX_APPLE_PRIV_FRAMEWORKS=$(
+    	printf '"%s"' "$out/$sdk/System/Library/PrivateFrameworks"
+    	  ) \
+    	  -DOS_VER_MIN=$(printf '"%s"' "7.1") \
+    	  -o "$target_dir/bin/$triple-clang"
+
+    pushd "$target_dir"/bin &>/dev/null
+
+    cp "$triple"-clang "$triple"-clang++
+
+    popd &>/dev/null
+
+    printf "\nbuilding ldid\n"
+
+    mkdir -p tmp
+    pushd tmp &>/dev/null
+    pushd "$ldid" &>/dev/null
+
+    chmod -R 755 "$ldid"
+
+    make INSTALLPREFIX="$target_dir" -j4 install
+    popd &>/dev/null
+    popd &>/dev/null
+
+    printf "\nbuilding cctools / ld64\n"
+
+    pushd ../../cctools &>/dev/null
+    git clean -fdx . &>/dev/null || true
+    ./autogen.sh
+    ./configure --target="$triple" --prefix="$target_dir"
+    make -j4
+    make install &>/dev/null
+
+    popd &>/dev/null
+
+    local me=`whoami`
+
+    for d in bin libexec SDK; do
+    	chown -R $me:$me target/$d
+    	cp -R target/$d $out
+    done
+
+    # Crucial piece
+    rm -rf $out/$sdk
+    mv $out/SDK $out/$sdk
+}
+
+do_build $src armv7
diff --git a/pkgs/development/compilers/ios-cross-compile/alt_wrapper.c b/pkgs/development/compilers/ios-cross-compile/alt_wrapper.c
new file mode 100644
index 0000000000000..928b64e6fd9d5
--- /dev/null
+++ b/pkgs/development/compilers/ios-cross-compile/alt_wrapper.c
@@ -0,0 +1,212 @@
+/*
+  This and the shell builder was originally written by
+  https://github.com/tpoechtrager but I had to modify both so that
+  they played nicely and were reproducible with nixpkgs. Much thanks
+  to MixRank for letting me work on this.
+  Edgar Aroutiounian <edgar.factorial@gmail.com>
+ */
+
+#ifndef TARGET_CPU
+#define TARGET_CPU "armv7"
+#endif
+
+#ifndef OS_VER_MIN
+#define OS_VER_MIN "4.2"
+#endif
+
+#ifndef NIX_APPLE_HDRS
+#define NIX_APPLE_HDRS ""
+#endif
+
+#ifndef NIX_APPLE_FRAMEWORKS
+#define NIX_APPLE_FRAMEWORKS ""
+#endif
+
+#ifndef NIX_APPLE_PRIV_FRAMEWORKS
+#define NIX_APPLE_PRIV_FRAMEWORKS ""
+#endif
+
+#define _GNU_SOURCE
+
+#include <stdlib.h>
+#include <string.h>
+#include <stdio.h>
+#include <stddef.h>
+#include <unistd.h>
+#include <limits.h>
+
+#ifdef __APPLE__
+#include <mach-o/dyld.h>
+#endif
+
+#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
+#include <sys/sysctl.h>
+#endif
+
+#ifdef __OpenBSD__
+#include <sys/types.h>
+#include <sys/user.h>
+#include <sys/stat.h>
+#endif
+
+char *get_executable_path(char *epath, size_t buflen)
+{
+  char *p;
+#ifdef __APPLE__
+  unsigned int l = buflen;
+  if (_NSGetExecutablePath(epath, &l) != 0) return NULL;
+#elif defined(__FreeBSD__) || defined(__DragonFly__)
+  int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+  size_t l = buflen;
+  if (sysctl(mib, 4, epath, &l, NULL, 0) != 0) return NULL;
+#elif defined(__OpenBSD__)
+  int mib[4];
+  char **argv;
+  size_t len;
+  size_t l;
+  const char *comm;
+  int ok = 0;
+  mib[0] = CTL_KERN;
+  mib[1] = KERN_PROC_ARGS;
+  mib[2] = getpid();
+  mib[3] = KERN_PROC_ARGV;
+  if (sysctl(mib, 4, NULL, &len, NULL, 0) < 0)
+    abort();
+  if (!(argv = malloc(len)))
+    abort();
+  if (sysctl(mib, 4, argv, &len, NULL, 0) < 0)
+    abort();
+  comm = argv[0];
+  if (*comm == '/' || *comm == '.') {
+    char *rpath;
+    if ((rpath = realpath(comm, NULL))) {
+      strlcpy(epath, rpath, buflen);
+      free(rpath);
+      ok = 1;
+    }
+  } else {
+    char *sp;
+    char *xpath = strdup(getenv("PATH"));
+    char *path = strtok_r(xpath, ":", &sp);
+    struct stat st;
+    if (!xpath)
+      abort();
+    while (path) {
+      snprintf(epath, buflen, "%s/%s", path, comm);
+      if (!stat(epath, &st) && (st.st_mode & S_IXUSR)) {
+	ok = 1;
+	break;
+      }
+      path = strtok_r(NULL, ":", &sp);
+    }
+    free(xpath);
+  }
+  free(argv);
+  if (!ok) return NULL;
+  l = strlen(epath);
+#else
+  ssize_t l = readlink("/proc/self/exe", epath, buflen);
+#endif
+  if (l <= 0) return NULL;
+  epath[buflen - 1] = '\0';
+  p = strrchr(epath, '/');
+  if (p) *p = '\0';
+  return epath;
+}
+
+char *get_filename(char *str)
+{
+  char *p = strrchr(str, '/');
+  return p ? &p[1] : str;
+}
+
+void target_info(char *argv[], char **triple, char **compiler)
+{
+  char *p = get_filename(argv[0]);
+  char *x = strrchr(p, '-');
+  if (!x) abort();
+  *compiler = &x[1];
+  *x = '\0';
+  *triple = p;
+}
+
+void env(char **p, const char *name, char *fallback)
+{
+  char *ev = getenv(name);
+  if (ev) { *p = ev; return; }
+  *p = fallback;
+}
+
+int main(int argc, char *argv[])
+{
+  char **args = alloca(sizeof(char*) * (argc + 17));
+  int i, j;
+
+  char execpath[PATH_MAX+1];
+  char sdkpath[PATH_MAX+1];
+  char codesign_allocate[64];
+  char osvermin[64];
+
+  char *compiler, *target, *sdk, *cpu, *osmin;
+
+  target_info(argv, &target, &compiler);
+
+  if (!get_executable_path(execpath, sizeof(execpath))) abort();
+  snprintf(sdkpath, sizeof(sdkpath), "%s/../SDK", execpath);
+
+  snprintf(codesign_allocate, sizeof(codesign_allocate),
+	   "%s-codesign_allocate", target);
+
+  setenv("CODESIGN_ALLOCATE", codesign_allocate, 1);
+  setenv("IOS_FAKE_CODE_SIGN", "1", 1);
+
+  env(&sdk, "IOS_SDK_SYSROOT", sdkpath);
+  env(&cpu, "IOS_TARGET_CPU", TARGET_CPU);
+
+  env(&osmin, "IPHONEOS_DEPLOYMENT_TARGET", OS_VER_MIN);
+  unsetenv("IPHONEOS_DEPLOYMENT_TARGET");
+
+  snprintf(osvermin, sizeof(osvermin), "-miphoneos-version-min=%s", osmin);
+
+  for (i = 1; i < argc; ++i) {
+    if (!strcmp(argv[i], "-arch")) {
+      cpu = NULL;
+      break;
+    }
+  }
+
+  i = 0;
+
+  args[i++] = compiler;
+  args[i++] = "-target";
+  args[i++] = target;
+  args[i++] = "-isysroot";
+  args[i++] = sdk;
+  args[i++] = NIX_APPLE_HDRS;
+  args[i++] = "-F";
+  args[i++] = NIX_APPLE_FRAMEWORKS;
+  args[i++] = "-F";
+  args[i++] = NIX_APPLE_PRIV_FRAMEWORKS;
+
+  if (cpu) {
+    args[i++] = "-arch";
+    args[i++] = cpu;
+  }
+
+  args[i++] = osvermin;
+  args[i++] = "-mlinker-version=253.3";
+
+  for (j = 1; j < argc; ++i, ++j) args[i] = argv[j];
+
+  args[i] = NULL;
+
+  setenv("COMPILER_PATH", execpath, 1);
+  /* int k; */
+  /* for (k = 0; k < i; k++) */
+  /*   printf("Compiler option: %s\n", args[k]); */
+  /* printf("End of Compiler args\n"); */
+  execvp(compiler, args);
+
+  fprintf(stderr, "cannot invoke compiler, this is a serious bug\n");
+  return 1;
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 52376012402c4..85d85eff3707b 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -7096,6 +7096,8 @@ let
 
   intltool = callPackage ../development/tools/misc/intltool { };
 
+  ios-cross-compile = callPackage ../development/compilers/ios-cross-compile/9.2.nix {};
+
   ip2location-c = callPackage ../development/libraries/ip2location-c { };
 
   irrlicht = callPackage ../development/libraries/irrlicht { };