20260428给万象奥科的开发板HD-RK3576-PI适配瑞芯微原厂的Android14时给iperf3配置TMPDIR目录

cat /sys/kernel/debug/pinctrl/pinctrl-rockchip-pinctrl/pinmux-pinscat /sys/kernel/debug/gpio用户名/密码root/rootDTS来自kernel-pi-v1.0.tar.gz226.7MBhttps://vanxoak.yuque.com/wb353n/hd-rk3576-pi/mg1yh7k1hgmmgtew开发资料下载https://vanxoak.yuque.com/wb353n/hd-rk3576-pi/amue52kesw19pqpg#NoWhJ与PC互传文件【使用WinSCP即可】在此介绍一下MobaXterm SFTP传输的一种简单方法https://vanxoak.yuque.com/wb353n/hd-rk3576-pi/zw4xqc5ixduxhm13#v5uOq音频测试1.音频硬件分布2.音频控件3.耳机播音测试roothd-rk3576:~# aplay kiss8.wavPlaying WAVE kiss8.wav : Signed 16 bit Little Endian, Rate 44100 Hz, Stereoroothd-rk3576:~# apt updateroothd-rk3576:~# apt install mpg123roothd-rk3576:~# mpg123 wenbie.mp3roothd-rk3576:~# apt install sox libsox-fmt-allroothd-rk3576:~# play wenbie.mp3roothd-rk3576:~# iperf3 -sC:\iperf3.21iperf3 -c 192.168.1.182 -i 1 -t 180020260428给万象奥科的开发板HD-RK3576-PI适配瑞芯微原厂的Android14时给iperf3配置TMPDIR目录2026/4/28 19:35缘起瑞芯微原厂的Android14直接跑iperf3会出错。必须手工配置export TMPDIR/data/local/tmp、现在要做的是自动配置1、问DeepSeekRK3576的Android14【基本可以确认iperf3需要一个临时目录】console:/ # export TMPDIR/data/local/tmpconsole:/ # iperf3 -s请问 有几种方式修改SDK 可以有默认这个目录呢在RK3576的Android 14 SDK中为iperf3设置默认TMPDIR目录其核心思路是在系统启动阶段或adb shell初始化过程中预先设置好环境变量主要有三种方案。?? 方案一在启动脚本中设置全局环境变量此方案通过在系统初始化脚本init.rc或adb shell的环境配置脚本mkshrc中添加设置使TMPDIR成为全局变量。修改 init.rc 脚本这种方法需要修改init.rc文件该文件位于boot.img的rootdir目录下。你需要深入RK3576 SDK中的相关文件并重新编译boot.img才能使其生效。具体操作是在init.rc中添加类似export TMPDIR /data/local/tmp的语句。想了解如何安全地修改并重新打包boot.img可以查阅RK3576 SDK开发指南的相关章节。修改 mkshrc 脚本这是种更便捷的方法。mkshrc文件通常位于/system/etc/是adb shell启动时的环境配置文件。你可以在mkshrc中找到设置默认环境变量的位置例如${HOME:/data}附近然后加入${TMPDIR:/data/local/tmp}。操作步骤将SDK中的mkshrc文件pull到本地修改然后重新编译system.img或直接将修改后的文件push到设备上并覆盖原文件。?? 方案二创建专用的启动脚本与方法一相比这个方法更加轻量对系统侵入性最小。编写脚本创建一个名为set_iperf3_env.sh的脚本内容如下bash#!/system/bin/shexport TMPDIR/data/local/tmpexec /path/to/iperf3 $部署与使用将脚本和iperf3二进制文件一同放入ROM可读写的分区如/data。之后运行此脚本代替直接运行iperf3即可。?? 方案三从源码修改硬编码临时目录路径这种方案最为彻底能从根源上解决问题。原理iperf3在运行时会优先检查TMPDIR或TMP环境变量如果均未设置才会回退到/tmp目录。因此你可以在编译前修改源码让其跳过环境变量检查直接使用/data/local/tmp。实现方法你需要定位iperf3源码中决定临时目录的逻辑通常是在iperf3的主源文件中找到类似下图的判断逻辑并直接修改c// 原始逻辑检查TMPDIR和TMP环境变量如果都不存在则使用/tmp// const char *tmppath getenv(TMPDIR);// if (!tmppath) tmppath getenv(TMP);// if (!tmppath) tmppath /tmp;// 修改后的逻辑直接使用安全的Android临时目录const char *tmppath /data/local/tmp;编译与集成完成修改后在RK3576的SDK环境下重新编译iperf3并将生成的二进制文件集成到你的系统镜像中。?? 总结与建议方案对比几种方案的优缺点对比如下系统启动脚本优点是一次修改全局生效统一管理缺点是影响范围大风险较高需要重新烧写系统。专用启动脚本优点是灵活可控风险低易于调试缺点是需要额外的脚本文件。源码硬编码优点是最彻底的解决方案无需依赖环境变量缺点是维护性较差每次更新需重编译。针对你的场景如果你是ROM开发者且有重新编译和烧录系统的便利方案一系统启动脚本 是维持系统纯净的较好选择。如果只是希望在现有固件上快速解决问题方案二专用启动脚本 风险最低操作最便捷。从简单、稳妥、易调试的角度我特别推荐使用方案二专用启动脚本 来快速解决问题。这不会影响你已运行的SDK环境也无需重新编译整个系统。最后无论选择哪种方案强烈建议在应用层代码中不再使用/tmp目录。Android环境下标准Linux的全局可写/tmp目录往往有权限限制是导致iperf3报错的根源。使用/data/local/tmp或应用的私有目录是更安全可靠的选择。这几种方法都能解决问题你想先试试用脚本快速验证还是希望我详细介绍下修改系统文件比如mkshrc的具体步骤2、修改【切记现阶段请务必不要完全相信DeepSeek】^_Y:\orig_RK3576Android14\external\mksh\mkshrcY:\RK3576_Android14.0_SDK_RELEASE\external\mksh\mkshrc# Copyright (c) 2010, 2012, 2013, 2014# Thorsten Glaser tgmirbsd.org# This file is provided under the same terms as mksh.#-# Minimal /system/etc/mkshrc for Android## Support: https://launchpad.net/mkshset o nohupif (( USER_ID )); then PS1$; else PS1#; fiPS4[$EPOCHREALTIME] ; PS1${|local e$?(( e )) REPLY$e|return $e}$HOSTNAME:${PWD:-?} $PS1 #add-startalias llsalias lal -aalias lll -lalias lol -a -l#alias findbusybox find#add-end#2026/4/28 13:36 wenyuanbo add#${TMPDIR:/data/local/tmp}export TMPDIR/data/local/tmp3、在普通用户、su/root权限下确认iperf3打流console:/ $console:/ $console:/ $ ifconfiglo Link encap:UNSPECinet addr:127.0.0.1 Mask:255.0.0.0inet6 addr: ::1/128 Scope: HostUP LOOPBACK RUNNING MTU:65536 Metric:1[ 353.968376][ T276] type1400 audit(1777375434.527:164): avc: denied { ioctl } for commifconfig pathsocket:[33765] devsockfs ino33765 ioctlcmd0x8927 scontextu:r:shell:s0 tcontextu:r:shell:s0 tclassudp_socket permissive0RX packets:0 errors:0 dropped:0 overruns:0 frame:0[ 353.968467][ T2133] audit: audit_lost23 audit_rate_limit5 audit_backlog_limit64TX packets:0 errors:0 dropped:0 overruns:0 carrier:0[ 353.968494][ T2133] audit: rate limit exceededcollisions:0 txqueuelen:1000[ 353.968707][ T276] type1400 audit(1777375434.527:165): avc: denied { ioctl } for commifconfig pathsocket:[33765] devsockfs ino33765 ioctlcmd0x891d scontextu:r:shell:s0 tcontextu:r:shell:s0 tclassudp_socket permissive0RX bytes:0 TX bytes:0[ 353.968944][ T276] type1400 audit(1777375434.527:166): avc: denied { ioctl } for commifconfig pathsocket:[33765] devsockfs ino33765 ioctlcmd0x8970 scontextu:r:shell:s0 tcontextu:r:shell:s0 tclassudp_socket permissive0[ 353.969165][ T276] type1400 audit(1777375434.527:167): avc: denied { ioctl } for commifconfig pathsocket:[33765] devsockfs ino33765 ioctlcmd0x8927 scontextu:r:shell:s0 tcontextu:r:shell:s0 tclassudp_socket permissive0dummy0 Link encap:UNSPEC[ 353.969383][ T276] type1400 audit(1777375434.527:168): avc: denied { ioctl } for commifconfig pathsocket:[33765] devsockfs ino33765 ioctlcmd0x891d scontextu:r:shell:s0 tcontextu:r:shell:s0 tclassudp_socket permissive0inet6 addr: fe80::852:b6ff:fe9a:8ca5/64 Scope: LinkUP BROADCAST RUNNING NOARP MTU:1500 Metric:1RX packets:0 errors:0 dropped:0 overruns:0 frame:0TX packets:7 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:0 TX bytes:490eth0 Link encap:UNSPEC Driver rk_gmac-dwmacinet addr:192.168.1.181 Bcast:192.168.1.255 Mask:255.255.255.0inet6 addr: 2408:8256:348b:103:5cc5:bb49:bddd:45a6/64 Scope: Globalinet6 addr: fe80::2d38:aec0:2d2e:9f6a/64 Scope: Linkinet6 addr: 2408:8256:348b:103:e452:d141:23de:ffeb/64 Scope: GlobalUP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1RX packets:216 errors:0 dropped:0 overruns:0 frame:0TX packets:59 errors:0 dropped:0 overruns:0 carrier:0collisions:0 txqueuelen:1000RX bytes:23722 TX bytes:6470console:/ $console:/ $ echo $TMPDIR/data/local/tmpconsole:/ $console:/ $ [ 366.355317][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau[ 426.355307][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau[ 486.355218][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau[ 546.355197][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgauconsole:/ $console:/ $ iperf3 -s-----------------------------------------------------------Server listening on 5201-----------------------------------------------------------[ 606.355338][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgauAccepted connection from 192.168.1.19, port 39388[ 5] local 192.168.1.181 port 5201 connected to 192.168.1.19 port 39390[ ID] Interval Transfer Bitrate[ 5] 0.00-1.00 sec 87.0 MBytes 730 Mbits/sec[ 5] 1.00-2.00 sec 111 MBytes 933 Mbits/sec[ 5] 2.00-3.00 sec 111 MBytes 933 Mbits/sec[ 5] 3.00-4.00 sec 112 MBytes 937 Mbits/sec[ 5] 4.00-5.00 sec 110 MBytes 927 Mbits/sec[ 5] 5.00-6.00 sec 110 MBytes 921 Mbits/sec[ 5] 6.00-7.00 sec 110 MBytes 923 Mbits/sec[ 5] 7.00-8.00 sec 111 MBytes 935 Mbits/sec[ 5] 8.00-9.00 sec 111 MBytes 935 Mbits/sec[ 5] 9.00-10.00 sec 111 MBytes 929 Mbits/sec[ 5] 10.00-11.00 sec 104 MBytes 872 Mbits/sec[ 5] 11.00-12.00 sec 109 MBytes 916 Mbits/sec[ 5] 12.00-13.00 sec 110 MBytes 919 Mbits/sec[ 5] 13.00-14.00 sec 107 MBytes 895 Mbits/sec[ 5] 14.00-15.00 sec 101 MBytes 848 Mbits/sec[ 5] 15.00-16.00 sec 105 MBytes 883 Mbits/sec[ 5] 16.00-17.00 sec 109 MBytes 913 Mbits/sec[ 5] 17.00-18.00 sec 109 MBytes 912 Mbits/sec[ 5] 18.00-18.03 sec 3.21 MBytes 939 Mbits/sec- - - - - - - - - - - - - - - - - - - - - - - - -[ ID] Interval Transfer Bitrate[ 5] 0.00-18.03 sec 1.90 GBytes 903 Mbits/sec receiver-----------------------------------------------------------Server listening on 5201-----------------------------------------------------------[ 666.355368][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau1|console:/ $ suconsole:/ #console:/ #console:/ # echo $TMPDIR[ 906.355338][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau/data/local/tmpconsole:/ #console:/ # echo $TMPDIR/data/local/tmpconsole:/ #console:/ # [ 966.355424][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgauconsole:/ #console:/ # iperf3 -s-----------------------------------------------------------Server listening on 5201-----------------------------------------------------------Accepted connection from 192.168.1.130, port 11940[ 5] local 192.168.1.181 port 5201 connected to 192.168.1.130 port 11941[ ID] Interval Transfer Bitrate[ 5] 0.00-1.00 sec 64.0 MBytes 537 Mbits/sec[ 5] 1.00-2.00 sec 82.9 MBytes 696 Mbits/sec[ 5] 2.00-3.00 sec 96.2 MBytes 807 Mbits/sec[ 5] 3.00-4.00 sec 93.8 MBytes 787 Mbits/sec[ 5] 4.00-5.00 sec 96.7 MBytes 811 Mbits/sec[ 5] 5.00-6.00 sec 83.3 MBytes 699 Mbits/sec[ 5] 6.00-7.00 sec 92.9 MBytes 779 Mbits/sec[ 5] 7.00-8.00 sec 96.6 MBytes 811 Mbits/sec[ 5] 8.00-9.00 sec 97.3 MBytes 816 Mbits/sec[ 5] 9.00-10.00 sec 79.8 MBytes 670 Mbits/sec[ 5] 10.00-11.00 sec 105 MBytes 878 Mbits/sec[ 5] 11.00-12.00 sec 98.2 MBytes 824 Mbits/sec[ 5] 12.00-13.00 sec 100 MBytes 843 Mbits/sec[ 5] 13.00-14.00 sec 100 MBytes 841 Mbits/sec[ 5] 14.00-15.00 sec 100 MBytes 841 Mbits/sec[ 5] 15.00-16.00 sec 98.8 MBytes 828 Mbits/sec[ 5] 16.00-17.00 sec 100 MBytes 843 Mbits/sec[ 5] 17.00-18.00 sec 82.4 MBytes 691 Mbits/sec[ 5] 18.00-18.03 sec 2.84 MBytes 785 Mbits/sec- - - - - - - - - - - - - - - - - - - - - - - - -[ ID] Interval Transfer Bitrate[ 5] 0.00-18.03 sec 1.63 GBytes 778 Mbits/sec receiver-----------------------------------------------------------Server listening on 5201-----------------------------------------------------------[ 1026.355217][ T521] healthd: battery l50 v3300 t2.6 h2 st3 c-1600 fc100 chgau^Ciperf3: interrupt - the server has terminated1|console:/ #参考资料https://blog.csdn.net/wb4916/article/details/158889690?spm1011.2415.3001.533120260310解决瑞芯微原厂RK3576的Android14刷机后iperf3连接异常iperf3: error - control socket has closed unexpectedly【基本可以确认iperf3需要一个临时目录】console:/ # export TMPDIR/data/local/tmpconsole:/ # iperf3 -srootrootrootroot-HP-245-14-inch-G10-Notebook-PC:~$ iperf3 -c 192.168.1.61 -i 1 -t 1800https://blog.csdn.net/wb4916/article/details/159047633?spm1011.2415.3001.533120260314解决瑞芯微原厂RK3576的Buildroot刷入万象奥科的开发板HD-RK3576-PI后适配以太网卡芯片YT8521【实测网速902Mbits/sec】