Debugging in uboot, especially after uboot relocated, can refer to:
For armv8 target, 'relocaddr' is stored in register x0 (arch/arm/lib/crt0_64.S:102)
$ aarch64-elf-gdb u-boot -x start.gdb
GNU gdb (Linaro GDB 2015.08) 7.10.0.20151014-cvs
Copyright (C) 2015 Free Software Foundation, Inc.
REF: https://superuser.com/questions/1005881/ssh-rootip-of-lxc-container-dont-work
iptables -t nat -A PREROUTING -i [host NIC] -p tcp --dport 2222 -j DNAT --to [container ip address]:22
| /etc/services && /System/Library/LaunchDaemons/ssh.plist |
site: https://github.com/google/syzkaller
= How To Start = Environment Setup
| https://lists.gnu.org/archive/html/qemu-devel/2012-03/msg03390.html | |
| Two major issues with this procedure: | |
| 1. When using kvm, a soft breakpoint (as set by 'b') will inject a trap | |
| instruction into the guest image - which is not yet loaded after the | |
| bios ran. You need to use a hardware breakpoint in this case. | |
| 2. Due to gdb limitations, you cannot switch between 16/32-bit mode (the | |
| CPU starts in 16 bit) and the 64-bit mode of kernel within the same gdb |
| MP4 TO MP4 (MEDIUM) | |
| ffmpeg -i input.mp4 -b 1000000 output.mp4 | |
| M2TS TO MP4 | |
| ffmpeg -i input.m2ts -vcodec libx264 -crf 20 -acodec ac3 -vf "yadif" output.mp4 | |
| MP4 TO WEBM (HIGH) | |
| ffmpeg -i input.mp4 -aq 5 -ac 2 -qmax 25 -threads 2 output.webm | |
| ffmpeg -i input.mp4 -c:v libvpx-vp9 -crf 30 -b:v 0 -b:a 128k -c:a libopus output.webm |