toolchain: gdb: Add optional python support

Compile gdb with python support optionally.

To use the Python support in gdb some extra python files are needed,
install them too. While at it also install other shared files which we
did not install before.

If gdb is built without Python support the python folder does not
exists.

Signed-off-by: Hauke Mehrtens <hmehrtens@maxlinear.com>

toolchain/Config.in

@@ -259,6 +259,14 @@ config GDB
 	help
 	  Enable if you want to build the gdb.
 
+config GDB_PYTHON
+	bool
+	depends on GDB
+	prompt "Build gdb with python binding"
+	
+	help
+	  Enable the python bindings for GDB to allow using python in the gdb shell.
+
 config USE_GLIBC
 	default y if !TOOLCHAINOPTS && !EXTERNAL_TOOLCHAIN && !NATIVE_TOOLCHAIN && (arc)
 	bool

toolchain/gdb/Makefile

@@ -36,7 +36,6 @@ HOST_CONFIGURE_ARGS = \
 	--without-included-gettext \
 	--enable-threads \
 	--with-expat \
-	--without-python \
 	--disable-unit-tests \
 	--disable-ubsan \
 	--disable-binutils \
@@ -44,11 +43,21 @@ HOST_CONFIGURE_ARGS = \
 	--disable-gas \
 	--disable-sim
 
+ifneq ($(CONFIG_GDB_PYTHON),)
+  HOST_CONFIGURE_ARGS+= --with-python
+else
+  HOST_CONFIGURE_ARGS:= --without-python
+endif
+
 define Host/Install
 	mkdir -p $(TOOLCHAIN_DIR)/bin
 	$(INSTALL_BIN) $(HOST_BUILD_DIR)/gdb/gdb $(TOOLCHAIN_DIR)/bin/$(TARGET_CROSS)gdb
 	ln -fs $(TARGET_CROSS)gdb $(TOOLCHAIN_DIR)/bin/$(GNU_TARGET_NAME)-gdb
 	strip $(TOOLCHAIN_DIR)/bin/$(TARGET_CROSS)gdb
+	mkdir -p $(TOOLCHAIN_DIR)/share/gdb
+	-cp -R $(HOST_BUILD_DIR)/gdb/data-directory/python $(TOOLCHAIN_DIR)/share/gdb/
+	cp -R $(HOST_BUILD_DIR)/gdb/data-directory/syscalls $(TOOLCHAIN_DIR)/share/gdb/
+	cp -R $(HOST_BUILD_DIR)/gdb/data-directory/system-gdbinit $(TOOLCHAIN_DIR)/share/gdb/
 endef
 
 define Host/Clean