往Android上移植lua

Compiling Lua for Android [1] Today i was checking out Lua. I first got in contact with Lua in 2008 when Jattenale started using it for his MMO Gods & Idols. Blizzard also famously uses it for UI scripting in World of Warcraft and a bunch of other big names use it in their products as well. Lua is a very simple yet powerful embeddable scripting language written in pure Ansi-C (with a few slight exceptions :p) and is portable to a lot of platforms without much effort. Today i tried to compile it with the Android NDK toolchain and was suprised how easy it was to get out a nice shared lib which i can use in my Android projects (with some JNI wrapper code). Here are 8 easy steps to compile Lua as a shared library for Android with the latest Android NDK (for glory and profit!) 1.Download the latest Lua tar ball from http://www.lua.org/ftp/lua-5.1.4.tar.gz and extract it’s contents. I assume the root folder of Lua to be at ${LUA} 2.Create an empty folder somehwere and add a subfolder named “jni” 3.place all the .h and .c files from ${LUA}/src in the jni folder you just created. 4.Open the file llex.c and change line 181 to ‘ ls->decpoint = ‘.’;’ 【ls->decpoint = “.”;’】(note this is a hack which will influence how decimal points are interpreted when lua code is parsed. We do this cause Android’s native support for locals is non existant…) [注釋：原因是lua解讀小數點時，按地區設定來，Android統一設成點就行了]。 5.Remove line 179 (‘struct lconv *cv = localeconv();) 6.Create a new file called Android.mk and paste the following statements to it: LOCAL_PATH := $(call my-dir) include $(CLEAR_VARS) LOCAL_ARM_MODE  := arm LOCAL_MODULE    := lua LOCAL_SRC_FILES := lapi.c \        lauxlib.c \        lbaselib.c \        lcode.c \        ldblib.c \        ldebug.c \        ldo.c \        ldump.c \        lfunc.c \        lgc.c \        linit.c \        liolib.c \        llex.c \        lmathlib.c \        lmem.c \        loadlib.c \        lobject.c \        lopcodes.c \        loslib.c \        lparser.c \        lstate.c \        lstring.c \        lstrlib.c \        ltable.c \        ltablib.c \        ltm.c \        lundump.c \        lvm.c \        lzio.c \        print.c include $(BUILD_SHARED_LIBRARY) 7.Create a file called AndroidManifest.xml in the parent folder of the “jni” folder and add the line ‘‘ to it 8.Change to the parent folder and type ndk-build and you’ll end up with libs/armeabi/liblua.so Note: there’s a couple of things that might not work with this basic configuration. Look into luaconfig.h and change stuff accordingly. You’ll probably have problems with loading other shared libs to bind C methods in Lua among other things. All that’s left is writting a JNI wrapper around the Lua C API which is left as an excercise for you dear reader :p 注釋：編譯時間，把這個包含jni的目錄(如luatest)拷貝到 ndk目錄的apps下。並且加入一個Application.mk，內容為， APP_PROJECT_PATH := $(call my-dir) APP_MODULES := lua 再在ndk根目錄下執行make APP=luatest 即可得到一個liblua.so在android-ndk-r5\apps\luatest\libs\armeabi目錄下。 這裡有一遍介紹lua本身的文章，很好http://sunxiunan.com/?p=1515 [1]  參見 http://www.badlogicgames.com/wordpress/?p=943

描述:檔案全在這裡 附件: luatest.rar (198 K)  原文發在這裡 http://www.bangchui.org/read.php?tid=21852