i.mx6 Linux Qt Boot process tracking

/************************************************************************** * i.mx6 Linux Qt Boot process tracking * Disclaimer: * 1. source code source my-i.mx6; * 2. This article is only an analysis of the startup process, and does not explain why the startup process is such a problem. * 2015-6-13 Shenzhen Ching Nanshan Ping Shan village Zengjianfeng *********************************************************** **************/                \\\\\\\\\\\\\-*-Directory-*-////////////| First, cat/etc/Inittab| Second, cat/etc/rc.d/RcS| Third, cat/etc/rc.d/rc.local| Iv. cat/etc/rc.d/Rc_gpu. S| Wu, cat/etc/Profile \\\\\\\\\\\\\\\\\\\//////////////////One, Cat/etc/Inittab # See BusyBox-1.00rc2/examples/inittab forMore Examples:: sysinit:/etc/rc.d/RcS # program called at system startup 1 #::respawn:/etc/rc.d/RC_MXC. S ttymxc0::once:/bin/Login Root # Core information printed serial port:: Sysinit:/etc/rc.d/Rc_gpu. S # program invoked at system startup 2:: Ctrlaltdel:/sbin/reboot:: Shutdown :/etc/rc.d/The program that is called by the RcS Stop # Shutdown:: Restart:/sbin/Init # program called when the system restarts two, cat/etc/rc.d/RcS #!/bin/SH # Minimal startup script, would work with MSH ( This  isBest availableinch# mmuless format). # load the config information load the configuration information and make it effective. /etc/rc.d/rc.conf # If you do not pass in the first argument, assign the start string to mode # to view the contents of the Inittab file, you can understand this part: #:: Sysinit:/etc/rc.d/RcS # program called at system startup 1 #:: Sysinit:/etc/rc.d/Rc_gpu. S # program called at system startup 2 #:: Shutdown:/etc/rc.d/RcS Stop # is called at shutdown # as indicated above, the machine does not pass the parameter to indicate start, shutdown incoming stop means shutdown mode=${1:-Start}if[$mode ="Start"] Then services=$cfg _services # If mode is start,services equals cfg_services valueElseServices=$cfg _services_r # If mode is start,services equals Cfg_services_r value fi cfg_services=${2:-$services} # If you do not pass in the second argument, cfg_services equals services # Run the configured sequence forIinch$cfg _services # iteration Cfg_services Do        if[-x/etc/rc.d/init.d/$i] # Check if the file can be executed then /etc/rc.d/init.d/$i $mode # If executable, then execute, and pass in the corresponding mode parameter, start or stop fi Doneif[$#-ge2] # If the number of arguments is greater than 2, the execution is complete here, and then exit0fi # Show All kernel log messages # Set the kernel information output level #echo8>/proc/sys/kernel/PRINTK # Run rc.localifpresent and executableif[-x/etc/rc.d/Rc.local] # Check if rc.local can perform then/etc/rc.d/rc.local $mode # Run the script and track the script Fi III, CAT/etc/rc.d/rc.local #!/bin/SH # # This script would be executed*after*All of the other init scripts. # You can put your own initialization stuffinchhere # I've seen/usr/bin/rpm file, does not exist, so if the content in the judgment can be ignored # of course, after the system has been running, and did not find the following echo out of the debug informationif[-X"/usr/bin/rpm"-a-e"/tmp/ltib"] then echo"Rebuilding RPM Database"RM-rf/tmp/Ltib rpm--rebuilddb fi # Fix up permissions # Modify/home/User's permissionsif[-d/home/user] then Chown-R user.user/home/User fi # Creates some device nodes, after which the code does not find content that is too valuable for the program to run # ADD nodes when running under the hypervisor andStaticDevicesif[-r/sys/class/misc/fsl-hv/dev-a! -r/dev/fsl-HV] then echo"Creating hypervisor nodes"DEVID= ' cat/sys/class/misc/fsl-hv/Dev 'if[-N"$DEVID"] then MAJOR="${devid%:*}"MINOR="${devid##*:}"               if[ \("$MAJOR"-gt0\)-A \ ("$MINOR"-gt0 \) ] Then RM-f/dev/fsl-HV Mknod/dev/fsl-HV c $MAJOR $MINOR fi fi forIinch 0 1 2 3 4 5 6 7        DoMknod/dev/hvc$i C229$i Done FI # Add the FM device nodesif[-N"$ (cat/proc/devices | grep fm | SED ' s/\ ([0-9]*\). */\1/')"-A! -r/dev/FM0] then echo"Creating Fman Device Nodes"CD/usr/share/doc/fmd-uspace-01.01/test/sh fm_dev_create cd-fi forIinch 0 1 2; Do        if[-e/sys/class/graphics/fb$i]; Then chmod0666/sys/class/graphics/fb$i/Pan fi done four, cat/etc/rc.d/Rc_gpu. S #!/bin/Bash # Get some information about the CPU Cpurev=$ (cat/proc/cpuinfo | grep Revision | awk'{print $}'| Awk'{print substr ($0,1,2)}'# Set Some variables, from the value of the variable, the main problem is to solve some of the different CPU environment of the # dependent libraries, the later content is to deal with this matter FILEVG=/usr/lib/libopenvg.so filevg3d=/usr/lib/libopenvg_3d.so FILEVG355=/usr/lib/libopenvg_355.so Echo4>/sys/module/galcore/parameters/Gpu3dminclockif[-e $FILEVG 3D] && [-e $FILEVG 355] Thenif[$CPUREV = =" A"] || [$CPUREV = =" the"] || [$CPUREV = =" -"] && [-e $FILEVG] then RM-F $FILEVG fiif[$CPUREV = =" A"] Then ln-s $FILEVG 3D $FILEVG fiif[$CPUREV = =" the"] Then ln-s $FILEVG 355 $FILEVG fiif[$CPUREV = =" -"] Then ln-s $FILEVG 355 $FILEVG fi fi V, Cat/etc/Profile # Set PATH environment variable path=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin PS1='[\[email protected]\h \w]\$'# The message format displayed in the shell export path # Exports path bit environment variable alias ll='ls-l'# Set command aliases alias La='ll-a'Export PS1='\[email protected]\h \w$'# Exporting some environment variables export PS2='>'Export PS3='? 'Export PS4='[$LINENO]+'# Set up information about Tslib, QT libraries export Gst_plugin_path=/usr/lib/fsl_mm_linux/lib/gstreamer-0.10Export Tslib_root=/usr/local/tslib-Install export Tslib_tsdevice=/dev/input/event1 Export Tslib_calibfile=/etc/pointercal Export Tslib_conffile= $TSLIB _root/etc/ts.conf Export Tslib_plugindir= $TSLIB _root/lib/TS Export Tslib_fbdevice=/dev/fb0 Export PATH=/usr/local/tslib-Install: $PATH export Ld_library_path=/usr/local/trolltech/qtembedded-4.8.5-arm/Lib Export qt_qws_fontdir=/usr/local/trolltech/qtembedded-4.8.5-arm/lib/Fonts Export Qws_mouse_proto=tslib:/dev/input/event1 # View/etc/pointercal file exists and is a regular file # through this file to determine whether it is necessary to call the touch screen correction programif[-f/etc/pointercal];then Echo"MXS touchscreen have calibrate!"    Else/usr/local/tslib-install/bin/ts_calibrate Fi # runs the QT program, passes in the Qws parameter, and runs in the background/qt_app/myzr-qws &

i.mx6 Linux Qt Boot process tracking