编译MSM8626 modem

参考:
Building Qualcomm modem from sources (msm8626)

Assembling a Qualcomm modem from source(msm8916)

Assembling a Qualcomm modem from source(msm8626)(原文是俄语)

https://projects.osmocom.org/projects/quectel-modems/wiki/Lenovo_A6000__Other_phones_with_leaked_qualcomm_sources

 

 

0.    首先在磁力链上下载

(1)

qcom_msm8x26_modem

magnet:?xt=urn:btih:61e8b8a520181ade801c251e5ec9352e33a7bb8c&dn=qcom_msm8x26_modem

(2)

qcom_leaked_sources.zip

magnet:?xt=urn:btih:ef3bf4fd7388657ff35c3dbf2b6367f924f8cdbc&dn=qcom_leaked_sources.zip

 

在gitlab也可以下载

https://gitlab.com/qcom-sources15

 

(3)

THE-CODE-8916.zip

http://www.mediafire.com/file/0t1znbr1sl2y6fm/THE-CODE.zip

http://www.mediafire.com/file/awo4z3i3j4qdz45/THE-CODE-8916.gz

 

1.  安装 Debian 或者 Ubuntu系统

我安装的是 Debian Buster  (Debian 10.1.3)  amd64

 

2.  安装必须的软件包

<pre>

apt install      p7zip-full    libxml-parser-perl      scons       lib32stdc++6

</pre>

p7zip-full  用来解压缩 下载的源代码

libxml-parser-perl  用来分析xml配置文件, debian系统 安装基本系统时就默认装好了

libc6-i386    lib32stdc++6  是因为  qcom 的 dsp编译程序实际是 32位的,必须装上32位的支持包

 

3.  安装HEXAGON Tools 到 特定的目录

HEXAGON_ROOT=$HOME/Qualcomm/HEXAGON_Tools
7za x -y -o$HEXAGON_ROOT $HOME/Downloads/hexagon_tools_6.4.06.a.7z

假设 将 hexagon_tools_的压缩包,放在了 $HOME/Downloads 目录下, 如果放在其他目录,对上面的命令自行修改

4. 解压缩 msm8626 modem的源代码

ROOTDIR=$HOME/qcom/msm8626
mkdir -p $ROOTDIR
cd $ROOTDIR
7za x -y -0$ROOTDIR     $HOME/Downloads/qcom_msm8626_modem_proc.7z
mv   qcom_msm8626_modem_proc   modem_proc
cd $ROOTDIR/modem_proc

因为压缩包没有保持 UNIX文件属性,sh脚本没有执行权限,需要修复

find . -name '*.sh' -exec chmod -f 775 {} \;
find . -name '*.mk' -exec chmod -f 775 {} \;
find . -name '*.py' -exec chmod -f 775 {} \;
find . -name '*.pl' -exec chmod -f 775 {} \;
find . -name '*.lcs' -exec chmod -f 775 {} \;
find . -name '*.api' -exec chmod -f 775 {} \;
find . -name '*.xml' -exec chmod -f 775 {} \;
find . -name '*.scons' -exec chmod -f 775 {} \;
find . -name 'scons' -exec chmod -f 775 {} \;
find . -name 'SConscript' -exec chmod -f 775 {} \;
find . -name 'SConstruct' -exec chmod -f 775 {} \;
find . -name 'Makefile' -exec chmod -f 775 {} \;
find . -name 'makefile' -exec chmod -f 775 {} \;
find . -name 'qaic' -exec chmod -f 775 {} \;
find . -name 'doxygen' -exec chmod -f 775 {} \;
find . -name 'qdsp6-image-build' -exec chmod -f 775 {} \;
find . -name 'SleepSynth' -exec chmod -f 775 {} \;
find . -name 'crypto_cbc' -exec chmod -f 775 {} \;
find . -name 'crypto_ccm' -exec chmod -f 775 {} \;

5. 开始编译

cd $ROOTDIR/modem_proc/build/ms/
./build.sh 8626.gen.prod BUILD_ID=AAAAANAZ -k

编译成功,提示

Elfparser Merge: Copying 4376 bytes from ELF file /home/softsim/qcom/msm8626/modem_proc/build/ms/M8x26AAAAANAZQ00772_DEVCFG.elf section ".8626_PLATFORM_CDP_DEVCFG_DATA" at offset 0x1e1a0 into merged_elf_8626_PLATFORM_MTP_MSM_DEVCFG_DATA.elf at offset 0x1b931a0                
Install file: "/home/softsim/qcom/msm8626/modem_proc/core/bsp/devcfg_img/build/devcfg_img/qdsp6/AAAAANAZ/M8x26AAAAANAZQ00772.elf" as "M8x26AAAAANAZQ00772.elf"                                                                                                                      
=== Generating  devcfg_img/qdsp6/AAAAANAZ/M8x26AAAAANAZQ00772_reloc.elf
=== Generating  devcfg_img/qdsp6/AAAAANAZ/M8x26AAAAANAZQ00772.mbn
=== Generating  devcfg_img/qdsp6/AAAAANAZ/M8x26AAAAANAZQ00772_relocflags.elf
Install file: "/home/softsim/qcom/msm8626/modem_proc/core/bsp/devcfg_img/build/M8x26AAAAANAZQ00772.mbn" as "bin/AAAAANAZ/qdsp6sw.mbn"
=== Generating  devcfg_img/qdsp6/AAAAANAZ/M8x26AAAAANAZQ00772.mbn
Install file: "/home/softsim/qcom/msm8626/modem_proc/core/bsp/devcfg_img/build/reloc/M8x26AAAAANAZQ00772.mbn" as "bin/AAAAANAZ/reloc/qdsp6sw.mbn"                                                                                                                                   
scons: done building targets.

==============================================================================
   SCons build summary
==============================================================================
** Build time...
 Build start  : Sat Jan 27 19:06:15 2024
 Build end    : Sat Jan 27 19:19:38 2024
 Elapsed time : 0:13:24
#-------------------------------------------------------------------------------
# BUILD END: AAAAANAZ
#-------------------------------------------------------------------------------
Build AAAAANAZ: Start Time: Sat Jan 27 19:06:15 2024,  End Time: Sat Jan 27 19:19:40 2024
Build AAAAANAZ: Delta Time: 13 minutes, 24 seconds
#-------------------------------------------------------------------------------
Overall Start Time: Sat Jan 27 19:06:15 2024,  Overall End Time: Sat Jan 27 19:19:40 2024
Overall Delta Time: 13 minutes, 24 seconds
#-------------------------------------------------------------------------------

可以看到,生成了 bin/AAAAANAZ/qdsp6sw.mbn 这个 modem文件

6. 清除编译的结果

./build.sh 8626.gen.prod BUILD_ID=AAAAANAZ --clean

遇到错误,修正后,重新编译前,可以先清楚。

7. mba.mbn 和 qdsp6sw.mbn 都没有做数字签名
准确地说,是用的高通给的测试签名, 可以在 firmware/image/modem.mdt 文件里看到 “General Use Test Key (for testing only)” 字符串
说明就是测试签名

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