2011年12月29日 星期四

如何編譯Android Ice Cream Sandwich

此篇文章主要記錄在Macbook Pro(mbp), OSX Lion上編譯ICS的Android source code的步驟, 不過應該Linux系統上也相同, 而且簡單許多, OSX上需要多做一些修改.

基本步驟
  1. 按照官網下載source code並設定環境
  2. 設定ccache, 原因是能夠加速c/c++的compiler速度(官網)
    $ export USE_CCACHE=1
$ export CCACHE_DIR=/<path_of_your_choice>/.ccache
$ prebuilt/linux-x86/ccache/ccache -M 20G
  3. 下載廠商提供的binary檔案, 我的手機是Nexus S, 所以Google提供
  4. 準備編譯
    1. 先將環境清乾淨
      make clobber
    2. 設定環境變數
      source build/envsetup.sh
    3. 設定編譯選項
      lunch
  5. 編譯
    make -j 4



蠢事集合
  1. code沒有換到 ics 4.0.3
    • 因為一開始ics source code release時官網建議
      repo init -u https://android.googlesource.com/platform/manifest -b android-4.0.1_r1
    • 解法
      1. 取得可以用可以用的branch 
        git --git-dir .repo/manifests/.git/ branch -a
      2. 切換到最新的branch, 此時最新的是android-4.0.3_r1 
        repo forall -c git checkout -b android-4.0.3_r1
  2. lunch看不到crespo(Nexus S的代號, 官網可以查到)
    • 因為顯示的option是由build/envsetup.sh產生, 而我在把source code更新成android-sdk-4.0.3_r1後, 沒有重新source build/envsetup.sh, 所以沒有新增
    • 其實也可以用 add_lunch_combo full_crespo-userdebug 加入option
  3. OSX Lion編譯問題 - strnlen
    • OSX Lion 在/usr/include/string.h 也定義了strnlen, 會發生重復定義, Reference
    • 將android定義的拿掉
      diff -u external/elfutils/config-compat-darwin.h external/elfutils/config-compat-darwin.h_org
--- external/elfutils/config-compat-darwin.h 2011-08-20 08:50:29.000000000 +0200
+++ external/elfutils/config-compat-darwin.h_org 2011-08-20 08:49:27.000000000 +0200
@@ -38,7 +38,6 @@
  return NULL;
 }
 
-#if 0
 static inline size_t strnlen (const char *__string, size_t __maxlen)
 {
  int len = 0;
@@ -46,7 +45,6 @@
   len++;
  return len;
 }
-#endif
 
 static inline void *mempcpy (void * __dest, const void * __src, size_t __n)
 {
  4. OSX Lion編譯問題 - XCode4 跟 libSDL
    • 在拜讀過google大神後找到解法, 加入下列patch
    1. build project
      diff --git a/core/combo/HOST_darwin-x86.mk b/core/combo/HOST_darwin-x86.mk
index 544a29e..407c74f 100644
--- a/core/combo/HOST_darwin-x86.mk
+++ b/core/combo/HOST_darwin-x86.mk
@@ -53,7 +53,11 @@ HOST_JNILIB_SUFFIX := .jnilib

 HOST_GLOBAL_CFLAGS += \
        -include $(call select-android-config-h,darwin-x86)
-HOST_RUN_RANLIB_AFTER_COPYING := true
+ifneq ($(filter 10.7.%, $(build_mac_version)),)
+       HOST_RUN_RANLIB_AFTER_COPYING := false
+else
+       HOST_RUN_RANLIB_AFTER_COPYING := true
+endif
 HOST_GLOBAL_ARFLAGS := cqs

 HOST_CUSTOM_LD_COMMAND := true
    2. development project 修改1
      diff --git a/tools/emulator/opengl/tests/translator_tests/GLES_CM/Android.mk b/tools/emulator/opengl/tests/translator_tests/GLES_CM/Android.mk
index deb11b6..a73f6b8 100644
--- a/tools/emulator/opengl/tests/translator_tests/GLES_CM/Android.mk
+++ b/tools/emulator/opengl/tests/translator_tests/GLES_CM/Android.mk
@@ -8,6 +8,15 @@ LOCAL_SDL_CONFIG ?= prebuilt/$(PREBUILT)/sdl/bin/sdl-config
 LOCAL_SDL_CFLAGS := $(shell $(LOCAL_SDL_CONFIG) --cflags)
 LOCAL_SDL_LDLIBS := $(filter-out %.a %.lib,$(shell $(LOCAL_SDL_CONFIG) --static-libs))

+ifeq ($(HOST_OS),darwin)
+  DARWIN_VERSION := $(strip $(shell sw_vers -productVersion))
+  ifneq ($(filter 10.7 10.7.%,$(DARWIN_VERSION)),)
+    # Lion needs to be forced to link dylib to avoid problems
+    # with the dynamic function lookups in SDL 1.2
+    LOCAL_SDL_LDLIBS += /usr/lib/dylib1.o
+  endif
+endif
+
 LOCAL_SRC_FILES:= \
         triangleCM.cpp
    3. development project 修改2
      diff --git a/tools/emulator/opengl/tests/translator_tests/GLES_V2/Android.mk b/tools/emulator/opengl/tests/translator_tests/GLES_V2/Android.mk
index ae0064f..efbe6bd 100644
--- a/tools/emulator/opengl/tests/translator_tests/GLES_V2/Android.mk
+++ b/tools/emulator/opengl/tests/translator_tests/GLES_V2/Android.mk
@@ -17,6 +17,12 @@ LOCAL_LDLIBS += $(LOCAL_SDL_LDLIBS)
 LOCAL_STATIC_LIBRARIES += libSDL libSDLmain

 ifeq ($(HOST_OS),darwin)
+DARWIN_VERSION := $(strip $(shell sw_vers -productVersion))
+ifneq ($(filter 10.7 10.7.%,$(DARWIN_VERSION)),)
+  # Lion needs to be forced to link dylib to avoid problems
+  # with the dynamic function lookups in SDL 1.2
+  LOCAL_LDLIBS += /usr/lib/dylib1.o
+endif
 $(call emugl-import,libMac_view)
 endif
    4. external/qemu project 
      diff --git a/Makefile.android b/Makefile.android
index e58f984..d638640 100644
--- a/Makefile.android
+++ b/Makefile.android
@@ -74,8 +74,8 @@ ifeq ($(HOST_OS),darwin)
     ifneq ($(filter 10.1 10.2 10.3 10.1.% 10.2.% 10.3.% 10.4 10.4.%,$(DARWIN_VERSION)),)
         $(error Building the Android emulator requires OS X 10.5 or above)
     endif
-    ifeq ($(filter 10.5 10.5.%,$(DARWIN_VERSION)),)
-        # We are on Snow Leopard or above
+    ifneq ($(filter 10.6 10.6.%,$(DARWIN_VERSION)),)
+        # We are on Snow Leopard
         LEOPARD_SDK := /Developer/SDKs/MacOSX10.5.sdk
         ifeq ($(strip $(wildcard $(LEOPARD_SDK))),)
             $(info  Please install the 10.5 SDK on this machine at $(LEOPARD_SDK))
@@ -191,6 +191,11 @@ endif

 ifeq ($(HOST_OS),darwin)
   QEMU_SYSTEM_LDLIBS += -Wl,-framework,Cocoa,-framework,QTKit,-framework,CoreVideo
+  ifneq ($(filter 10.7 10.7.%,$(DARWIN_VERSION)),)
+    # Lion needs to be forced to link dylib to avoid problems
+    # with the dynamic function lookups in SDL 1.2
+    QEMU_SYSTEM_LDLIBS += /usr/lib/dylib1.o
+  endif
 endif

 include $(LOCAL_PATH)/Makefile.common
Reference

  1. Android官方網站
  2. 編譯環境相關
  3. Nexus手機Binary檔案下載位置
  4. OSX Lion strnlen patch
  5. OSX Lion XCode4 dependency patch
  6. 指令說明
  7. 其他教學文章
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