Merge pull request #1397 from tonytheodore/host-toolchain

Add host toolchain example plugin

plugins/examples/host-toolchain/README.md

@@ -0,0 +1,24 @@
+Cross Compiling a Host Toolchain
+--------------------------------
+
+This plugin demonstrates a minimal working toolchain built with MXE to
+execute on a Windows host. To build:
+
+```
+make gcc-host MXE_PLUGIN_DIRS=plugins/examples/host-toolchain/
+```
+
+This will run the usual steps to build a cross-compiler, then build a
+second pass to cross-compile the basic toolchain (`binutils` and `gcc`).
+
+Once complete, copy `usr/{target}` to an appropriate Windows machine
+and execute the `usr\{target}\bin\test-gcc-host.bat` batch file. This
+builds and runs the `libgomp` test as a sanity check.
+
+Why?
+----
+
+Simply for curiosity, it's hard to see a practical use for this. Certainly,
+attempting to use it as a way to bootstrap MXE on Windows would strain
+one's sanity and cross-compiling is the recommended way (even if that means
+running a Linux VM on Windows).

plugins/examples/host-toolchain/binutils-host.mk

@@ -0,0 +1,26 @@
+# This file is part of MXE.
+# See index.html for further information.
+
+PKG             := binutils-host
+$(PKG)_IGNORE    = $(binutils_IGNORE)
+$(PKG)_VERSION   = $(binutils_VERSION)
+$(PKG)_CHECKSUM  = $(binutils_CHECKSUM)
+$(PKG)_SUBDIR    = $(binutils_SUBDIR)
+$(PKG)_FILE      = $(binutils_FILE)
+$(PKG)_URL       = $(binutils_URL)
+$(PKG)_URL_2     = $(binutils_URL_2)
+$(PKG)_DEPS     := gcc
+
+define $(PKG)_UPDATE
+    echo $(binutils_VERSION)
+endef
+
+define $(PKG)_BUILD
+    $(subst --disable-werror,\
+            --disable-werror \
+            --prefix='$(PREFIX)/$(TARGET)' \
+            --host='$(TARGET)',\
+    $(binutils_BUILD))
+
+    #rm -rf '$(PREFIX)/$(TARGET)/$(TARGET)'
+endef

plugins/examples/host-toolchain/gcc-host-1.patch

@@ -0,0 +1 @@
+src/gcc-1.patch

plugins/examples/host-toolchain/gcc-host.mk

@@ -0,0 +1,50 @@
+# This file is part of MXE.
+# See index.html for further information.
+
+PKG             := gcc-host
+$(PKG)_IGNORE    = $(gcc_IGNORE)
+$(PKG)_VERSION   = $(gcc_VERSION)
+$(PKG)_CHECKSUM  = $(gcc_CHECKSUM)
+$(PKG)_SUBDIR    = $(gcc_SUBDIR)
+$(PKG)_FILE      = $(gcc_FILE)
+$(PKG)_URL       = $(gcc_URL)
+$(PKG)_URL_2     = $(gcc_URL_2)
+$(PKG)_DEPS     := gcc binutils-host cloog gmp isl mpfr mpc
+
+define $(PKG)_UPDATE
+    echo $(gcc_VERSION)
+endef
+
+define $(PKG)_BUILD
+    mkdir '$(1).build'
+    cd    '$(1).build' && '$(1)/configure' \
+        --host='$(TARGET)' \
+        --target='$(TARGET)' \
+        --build='$(BUILD)' \
+        --prefix='$(PREFIX)/$(TARGET)' \
+        --with-native-system-header-dir='$(PREFIX)/$(TARGET)/include' \
+        --enable-languages='c,c++,objc,fortran' \
+        --enable-version-specific-runtime-libs \
+        --with-gcc \
+        --with-gnu-ld \
+        --with-gnu-as \
+        --disable-nls \
+        $(if $(BUILD_STATIC),--disable-shared) \
+        --disable-multilib \
+        --without-x \
+        --disable-win32-registry \
+        --enable-threads=$(MXE_GCC_THREADS) \
+        --enable-libgomp \
+        --with-{cloog,gmp,isl,mpc,mpfr}='$(PREFIX)/$(TARGET)'
+
+    $(MAKE) -C '$(1).build' -j '$(JOBS)'
+    $(MAKE) -C '$(1).build' -j 1 install
+
+    # test compilation on host
+    cp '$(TOP_DIR)/src/pthreads-libgomp-test.c' '$(PREFIX)/$(TARGET)/bin/test-$(PKG).c'
+    (printf 'set PATH=..\\bin;%%PATH%%\r\n'; \
+     printf 'gcc test-$(PKG).c -o test-$(PKG).exe -fopenmp -v\r\n'; \
+     printf 'test-$(PKG).exe\r\n'; \
+     printf 'pause\r\n';) \
+     > '$(PREFIX)/$(TARGET)/bin/test-$(PKG).bat'
+endef

src/cloog.mk

@@ -22,13 +22,11 @@ define $(PKG)_UPDATE
     tail -1
 endef
 
-define $(PKG)_BUILD_$(BUILD)
+define $(PKG)_BUILD
     cd '$(1)' && ./configure \
         $(MXE_CONFIGURE_OPTS) \
         --with-gmp-prefix='$(PREFIX)/$(TARGET)' \
         --with-isl-prefix='$(PREFIX)/$(TARGET)'
-    $(MAKE) -C '$(1)' -j '$(JOBS)'
+    $(MAKE) -C '$(1)' -j '$(JOBS)' $(if $(BUILD_SHARED),LDFLAGS=-no-undefined)
     $(MAKE) -C '$(1)' -j '$(JOBS)' install
 endef
-
-$(PKG)_BUILD_SHARED =

src/isl.mk

@@ -26,8 +26,6 @@ define $(PKG)_BUILD
     cd '$(1)' && ./configure \
         $(MXE_CONFIGURE_OPTS) \
         --with-gmp-prefix='$(PREFIX)/$(TARGET)'
-    $(MAKE) -C '$(1)' -j '$(JOBS)'
+    $(MAKE) -C '$(1)' -j '$(JOBS)' $(if $(BUILD_SHARED),LDFLAGS=-no-undefined)
     $(MAKE) -C '$(1)' -j '$(JOBS)' install
 endef
-
-$(PKG)_BUILD_SHARED =