MocroDroid拾遗
customize/make/xxx.mak 是跟硬件平台相关的编译配置文件，里面定义平台所使用的平台、芯片驱动等信息，是展讯里所谓的project。通过mk脚本可以将project 进行编译，生成最终的烧录文件
目前支持的平台有sc8800g,sc8810
文件中带3RDPARTY_XXX(XXX为大写)的，表示模块放在3rdparty相应目录xxx(xxx为小写）内，如果同时定义多个，需要使用:分隔，如
3RDPARTY_CAMERA = ov5640:ov2655:ov7675:ov2640:gc0309:nmi601
模块内可以存在hal/framework/kernel/special这几个目录，前面三个为对应到Android相应模块中的代码，special是为是兼容已调试好的模块（做以前模块到Android平台的适配层？）
添加驱动包需要注意的地方：
在编译系统的时候，会通过customize/perl/prebuild.pl去检查3rdparty/xxx/xxx/special/build.sh是否可执行
如果不能执行，会导致customize/customer_cfg/$prj/.chiplist.cfg配置错误，从而导致编译失败
所以在添加添加包后，需要将相应的build.sh设置为可执行
open OUTPUT_FILE, ">>$chiplist_dir" or die "$chiplist_dir: $!";
print OUTPUT_FILE "# chiplist.cfg auto generated by Spradtrum\n\n";
print OUTPUT_FILE "chip_path=\"";
my @chiplists = &chiplist_get();
foreach my $list(@chiplists)
{
die "$list is not execuable file\n"if(!-x $list);
$list =~s/\/special\/build\.sh//i;
$list =~s/^3rdparty//i;
print OUTPUT_FILE "$list\n";
}
print OUTPUT_FILE "\"";
close OUTPUT_FILE;
customize/customer_cfg/XXX/res中存放着相关的rc配置文件，AndroidBoard.mk、BoardConfig.mk、sprd_apps.mk等重要的编译配置文件
还有system.prop、键盘配置文件，分区表
编译出错１
frameworks/base/libs/utils/RefBase.cpp: 在成员函数‘void android::RefBase::weakref_type::trackMe(bool, bool)’中: frameworks/base/libs/utils/RefBase.cpp:507:67: 错误： 将‘const android::RefBase::weakref_impl’作为‘void android::RefBase::weakref_impl::trackMe(bool, bool)’的‘this’实参时丢弃了类型限定 [-fpermissive] make[1]: *** [out/host/linux-x86/obj/STATIC_LIBRARIES/libutils_intermediates/RefBase.o] 错误 1
解决办法：编辑frameworks/base/libs/utils/Android.mk文件，修改
LOCAL_CFLAGS += -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS)
为
LOCAL_CFLAGS += -DLIBUTILS_NATIVE=1 $(TOOL_CFLAGS) -fpermissive
编译出错２
<命令行>:0:0: 错误： “_FORTIFY_SOURCE”重定义 [-Werror] <built-in>:0:0: 附注： 这是先前定义的位置 cc1plus: all warnings being treated as errors make[1]: *** [out/host/linux-x86/obj/EXECUTABLES/obbtool_intermediates/Main.o] 错误 1
修改build/core/combo/HOST_linux-x86.mk line 61:
HOST_GLOBAL_CFLAGS += -D_FORTIFY_SOURCE=0 改为 HOST_GLOBAL_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=0
编译出错3
CC [M] /home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.o /home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.c: In function 'cy8c21x34_ts_probe': /home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.c:490: error: implicit declaration of function 'kzalloc' /home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.c:490: warning: assignment makes pointer from integer without a cast /home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.c:585: error: implicit declaration of function 'kfree' make[4]: *** [/home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver/cy8c21x34_ts.o] 错误 1 make[3]: *** [_module_/home/yondy/android/idh.code/3rdparty/tp/CY8C21X34/special/driver] 错误 2 make[2]: *** [sub-make] 错误 2 make[1]: *** [all] 错误 2
在cy8c21x34_ts.h中添加
#include<linux/slab.h>
下载android的kernel进行对比
git clone https://android.googlesource.com/kernel/common -b android-2.6.39
或
git clone --branch android-2.6.39 https://android.googlesource.com/kernel/common
--------------------------------------
./mk -o=2sim sp6820a u adr 出错
Use of uninitialized value $CUR_MODULE_PATH in string ne at customize/perl/main.pl line 373. 2012/12/16 16:17:26 androiding ... update android SH_INFO:make_android.sh [PATH:/home/yondy] Couldn't locate the top of the tree. Try setting TOP.
编译时定位不到ＴＯＰ目录，提示出现的位置 customize/shell/make_android.sh中
source ${ANDROID_3RDPARTY_ANDROID_TOP}/build/envsetup.sh
cd $1
SHELLINFO echo "SH_INFO:make_android.sh [PATH:$PWD]" >&2
mm
其中的$1为空，也就是回到了home位置，导致无法编译
向上找到实际调用make_android.sh的地方 customize/make/makefile.sprd
android:
$(hide) echo $(SHOWTIME) $@ing ...
$(hide) echo $(CUR_ACTION) $(CUR_MODULE)
$(hide) cd $(SHELL_SCRIPT) && \
($(BUILD_MODE) ./make_android.sh $(KMOD_PATH)) $(DEAL_STDOUT_MODULE)
继续寻找KMOD_PATH
来自customize/shell/main.pl的调用
$makeCmd = "make -f customize/make/makefile.sprd $cmdArg @mOpts";
#省略若干
if ( ($CUR_MODULE_PATH ne "") && (($uMod eq "android") or ($uMod eq "ko")))
{
$result += &system_call("$makeCmd $uMod CUR_ACTION=$uAct CUR_MODULE=$uMod KMOD_PATH=$CUR_MODULE_PATH");
}
else
{
$result += &system_call("$makeCmd $uMod CUR_ACTION=$uAct CUR_MODULE=$uMod");
}
$CUR_MODULE_PATH是获取./mk -o=2sim sp6820a u adr 往后的参数，也就是在编译的时候，需要将编译目录加上，变成
./mk -o=2sim sp6820a u adr ./
或者修改上面的代码，补充KMOD_PATH
由上面可以看出
展讯的new/update的主调用过程是:
./mk -> customize/shell/main.pl -> customize/make/makefile.sprd -> customize/shell/build.products.sh -> customize/customer_cfg/$selected_product/res/build.sh
展讯的编译android主调用过程是:
./mk -> customize/shell/main.pl -> customize/make/makefile.sprd -> customize/shell/make_android.sh
最终调用到/build/envsetup.sh，使用android的mm命令进行编译
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修改frameworks出现的问题
Install: out/host/linux-x86/bin/apicheck
Checking API: checkapi-current
(unknown): error 5: Added public field android.provider.Settings.System.AVALIABLE_CARD_COUNTS
******************************
You have tried to change the API from what has been previously approved.
To make these errors go away, you have two choices:
1) You can add "@hide" javadoc comments to the methods, etc. listed in the
errors above.
2) You can update current.xml by executing the following command:
make update-api
To submit the revised current.xml to the main Android repository,
you will need approval.
******************************
修改了frameworks的接口或字段以后，可以有两种选择
１、通过make update-api 将新修改的内容更新到current.xml
在展讯代码里是./mk -o=2sim sp6820a ua
２、通过注解/**{@hide}*/将其标注为不公开
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在最后阶段打包system.img出错
Install system fs image: system.img Re-install system & userdata image SH_INFO:Error: Can't find .chiplist.cfg [LINE:8] PWD(/home/yondy/android/idh.code/3rdparty) make[1]:正在离开目录 `/home/yondy/android/idh.code'
输出错误的文件位置在customize/customize_cfg/sp6820a/res/build.sh
if [ -f ${ANDROID_CUSTOMIZE_BASE}/customer_cfg/${ANDROID_3RDPARTY_SELECTED_PRODUCT}/.chiplist.cfg ] ;then
source ${ANDROID_CUSTOMIZE_BASE}/customer_cfg/${ANDROID_3RDPARTY_SELECTED_PRODUCT}/.chiplist.cfg
echo "SH_INFO:chip_path($chip_path)" >&2
else
if [ "$1" != "clean" -a "$1" != "idh" -a "$1" != "idhb" ] ; then
echo "SH_INFO:Error: Can't find .chiplist.cfg [LINE:$LINENO] PWD($PWD)" >&2
exit 0
fi
fi
经检查.chiplist.cfg是存在的，很大的可能是ANDROID_CUSTOMIZE_BASE或ANDROID_3RDPARTY_SELECTED_PRODUCT不正确
customize/shell/build.products.sh中定义了ANDROID_3RDPARTY_SELECTED_PRODUCT；调用过程是build.products.sh >> build.sh
export ANDROID_3RDPARTY_SELECTED_PRODUCT="$selected_product"
unset ll_args[0]
unset ll_args[1]
[ $do_build ] && { $ANDROID_3RDPARTY_PRODUCTS_PATH/$selected_product/res/build.sh $subcmd ${ll_args[@]}; }
cd $ANDROID_3RDPARTY_PRODUCTS_PATH/http://www.cnblogs.com/
if [ ${ll_ota} = "1" ]; then
make otapackage >&2
customize/customer_cfg/$selected_product/res/build.sh update_image
fi
实际上只编译android时，是不会执行到build.products.sh的，所以需要在其他的地方定义ANDROID_3RDPARTY_SELECTED_PRODUCT
customize/shell/build.3rdparty.common.sh定义了ANDROID_CUSTOMIZE_BASE
export ANDROID_3RDPARTY_BASE=$(readlink -f ${ANDROID_3RDPARTY_ANDROID_TOP}/3rdparty)
export ANDROID_CUSTOMIZE_BASE=$(readlink -f ${ANDROID_3RDPARTY_ANDROID_TOP}/customize)
build.3rdparty.common.sh由customize/shell/make_android.sh调用
而make.sprd在调用make_android.sh时，只带了一个参数($(BUILD_MODE) ./make_android.sh $(KMOD_PATH)) $(DEAL_STDOUT_MODULE)
需要在这个地方将编译的project信息带进来，所以修改为($(BUILD_MODE) ./make_android.sh $(KMOD_PATH) $(PROJECT)) $(DEAL_STDOUT_MODULE)
make_android.sh中增加ANDROID_3RDPARTY_SELECTED_PRODUCT=$2
------------------------------------------------------
添加wifi的预设文件
/external/wpa_supplicant/wpa_supplicant.conf (/external/wpa_supplicant_6/wpa_supplicant/wpa_supplicant.conf) 可以配置wifi的默认ＳＳＩＤ列表及关联优先级别（编译后是/etc/wifi/wpa_supplicant.conf）
network={
ssid="CMCC"
key_mgmt=NONE
priority=1
}
network={
ssid="CMCC-EDU"
key_mgmt=NONE
priority=2
}
wifi驱动的相关参考见 http://blog.chinaunix.net/uid-27570663-id-3328552.html
----------------------------------
./mk -o=2sim sp6820a new 调用分析
./mk -> customize/shell/main.pl -> customize/make/makefile.sprd -> customize/shell/build.products.sh -> customize/customer_cfg/$selected_product/res/build.sh
customize/shell/main.pl
对输入的参数进行匹配，检查是否合法，提取出$project等参数
检查customize/make/${project}.mak文件是否存在
&parse_custmake(${project}); 解析mak文件，将里面的配置解析后存放到$ENV{$KEY} = $VALUE;
如果是new操作，则将project/mode/sim三个属性写入到 make.ini，再将make.ini的内容再读出来
然后生成相应的编译参数，放到数组mOpts中存起来, 再生成对应的编译命令，先执行prebuild.pl 初始化，再执行相应的命令进行编译
$kernel_ver = &gen_kernelver();
$uboot_ver = &gen_ubootver();
push(@mOpts, "ENABLE_LOG=$log");
push(@mOpts, "PROJECT=$project");
push(@mOpts, "ROOTDIR=$enterdir");
push(@mOpts, "CUR_SIM=$sim");
push(@mOpts, "SUPPORT_WIFI=$wifi");
push(@mOpts, "SUPPORT_BT=$bt");
push(@mOpts, "SUPPORT_GPS=$gps");
push(@mOpts, "SUPPORT_VT=$vt");
push(@mOpts, "CUR_MODE=$mode");
push(@mOpts, "KERNEL_VER=$kernel_ver");
push(@mOpts, "UBOOT_VER=$uboot_ver");
push(@mOpts, "IDH_PARAM=$idhparam");
push(@mOpts, "SUPPORT_MPDP=$ismpdp");
push(@mOpts, "SUPPORT_GSENSOR=$lsensor");
push(@mOpts, "SUPPORT_GSENSOR=$gsensor");
push(@mOpts, "SUPPORT_MSENSOR=$msensor");
if($cust_act eq "new")
{
&system_call("rm -rf $build_folder");
}
###################
$cmdArg = "CMD_ARGU=\"@mOpts\"";
$makeCmd = "make -f customize/make/makefile.sprd $cmdArg @mOpts";
&mkdir_according_path($logdir, "false");
执行prebuild.pl进行初始化
&system_call("touch $logdir/${project}_prebuild.log");
push @loglist, "$logdir/${project}_prebuild.log";
&system_call("perl customize/perl/prebuild.pl customize/make/${project}.mak 2>&1 | tee $logdir/${project}_prebuild.log");
customize/build/prebuild.pl
print "#####################################################################\n";
print "step[1]: Judge some error conditions\n";
print "#####################################################################\n";
检查customize/make/${project}.mak是否存在
print "#####################################################################\n";
print "step[2]: parse customize/make/rules.mak\n";
print "#####################################################################\n";
&rules_parse();
解析customize/make/rules.cfg，按行读取里面的内容，如CPY_FILE_TYPE = png:apk 进行指定文件的复制操作
print "#####################################################################\n";
print "step[3]: according to $filename generate hash table\n";
print "#####################################################################\n";
&generate_hash($filename);
$kver = &kernel_ver_get();
$uver = &uboot_ver_get();
print "#####################################################################\n";
print "step[4]: clean softlink and hardlink\n";
print "#####################################################################\n";
&system_call("perl customize/perl/cleanall.pl $prj $makeValue{BUILD_SPRD_PLATFORM}");
print "#####################################################################\n";
print "step[5]: remove conflict file list \n";
print "#####################################################################\n";
my $conflictp = "3rdparty/conflict/$prj";
my $collision_file = "3rdparty/conflict/collision.lst";
&system_call("rm -rf $collision_file");
print "#####################################################################\n";
print "step[6]: generate customer app feature control files\n";
print "#####################################################################\n";
&system_call("perl customize/perl/appcfg.pl $prj");
##根据用户的参数，在下面的java和cpp中将对应的APP启用或禁用
##"3rdparty/app/$makeValue{$type}/special/android/frameworks/base/core/java/android/util/SprdFeatureUtils.java";
##"3rdparty/app/$makeValue{$type}/special/android/frameworks/base/include/utils/SprdFeatureUtils.h";
print "#####################################################################\n";
print "step[7]: generate customer kernel cfg files\n";
print "#####################################################################\n";
#&system_call("perl customize/perl/kcfg.pl $prj");
print "#####################################################################\n";
print "generate kernel cfg folders and makefiles\n";
print "step[8]: judge whether kernel cfg src folder and dst folder are exist\n";
print "#####################################################################\n";
＃＃将$kver/arch/arm/mach-$makeValue{BUILD_SPRD_PLATFORM}/board-$prj中与将ustomize/customer_cfg/$prj/kernel里的同名文件先删除
＃＃也就是删除kernel/arch/arm/mach-sc8810/board-sp6820a里的文件
print "#####################################################################\n"; print "generate kernel cfg folders and makefiles\n"; print "step[9]: generate softlink between customer_cfg kernel folder and kernel cfg folder\n"; print "#####################################################################\n";
＃＃将ustomize/customer_cfg/$prj/kernel里的文件软链接到$kver/arch/arm/mach-$makeValue{BUILD_SPRD_PLATFORM}/board-$prj
print "#####################################################################\n";
print "generate kernel cfg folders top Kconfig and Makefiles\n";
print "step[10]: generate kernel cfg top folder makefiles\n";
print "#####################################################################\n";
print "#####################################################################\n";
print "generate kernel cfg sub folders and sub makefiles\n";
print "step[11]: generate kernel cfg sub folder makefiles\n";
print "#####################################################################\n";
print "#####################################################################\n";
print "generate kernel driver folders and makefiles\n";
print "step[12]: generate softlink between 3rdparty module kernel folder and\n";
print "kernel driver folder\n";
print "#####################################################################\n";
＃＃遍历3rdparty中的驱动目录，根据mak中的驱动配置，
print "####################################################################\n";
print "generate customer cfg hal softlink and makefile\n";
print "step[13]: generate softlink between customer cfg hal files and dst hal files\n";
print "####################################################################\n";
print "####################################################################\n";
print "generate 3rdparty module hal/framework/special softlink and makefile\n";
print "step[14]: generate hal/framework/specail softlink and makefile\n";
print "####################################################################\n";
print "####################################################################\n";
print "generate uboot softlink and makefile\n";
print "step[15]: generate uboot softlink and makefile\n";
print "####################################################################\n";
print "####################################################################\n";
print "generate factory mode softlink and makefile\n";
print "step[16]: generate engineering softlink and makefile\n";
print "####################################################################\n";
print "####################################################################\n";
print "generate special module softlink and chiplist\n";
print "step[17]: generate special module softlink and chiplist\n";
print "####################################################################\n";
print "####################################################################\n";
print "check file collision condition\n";
print "step[18]: check patch directory(3rdparty/customize)collision condition\n";
print "####################################################################\n";
&system_call("perl customize/perl/pcollision.pl $prj $collision_file $conflictp");
print "####################################################################\n";
print "generate dummy Android.mk in related folder\n";
print " step[19]: generate dummy Android.mk\n";
print "####################################################################\n";
编译命令调用到customize/make/makefile.sprd
new:
$(hide) echo $(SHOWTIME) $@ing ...
$(hide) echo $(BUILD_MODE)
$(hide) echo $(SIM_OPT)
$(hide) echo $(SUPPORT_WIFI)
$(hide) echo $(SUPPORT_BT)
$(hide) echo $(SUPPORT_GPS)
$(hide) echo $(SUPPORT_VT)
$(hide) cd $(SHELL_SCRIPT) && \
($(BUILD_MODE) ./build.products.sh $(PROJECT) $(SIM_OPT) $(SUPPORT_WIFI) $(SUPPORT_BT) $(SUPPORT_GPS) $(SUPPORT_VT) fprebuild) $(DEAL_STDOUT_ACTION)
customize/Shell/build.products.sh >> customize/customer_cfg/$selected_product/res/build.sh update_image
customize/customer_cfg/Sp6820a/res/build.sh
source customize/customer_cfg/Sp6820a/.chiplist.cfg
source costomize/shell/build.3rdparty.common.sh
将编译用的文件复制到vendor目录
customize/customer_cfg/Sp6820a/res/AndroidBoard.mk:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/BoardConfig.mk:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/apns-conf.xml:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/BoardConfig_IDH.mk:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/rc.local:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/vold.fstab:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/system.prop:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/sprd-keypad.kcm:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/sprd-keypad.kl:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/sprd_apps.mk:./vendor/sprd/product customize/customer_cfg/Sp6820a/res/init.sp6820.3rdparty.rc:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/init.sp6820.rc:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/modem_bins:./vendor/sprd/hsdroid customize/customer_cfg/Sp6820a/res/recovery.fstab:./vendor/sprd/hsdroid
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