termux

name	termux
description	Device interaction via SSH/Termux for Mali-G77-MC9 reverse engineering. Provides workflows for pushing code, compiling on device, running tests, and debugging.

Termux Skill

Purpose

Device interaction via SSH/Termux for the Mali-G77-MC9 reverse engineering project.

Connection

SSH into Termux (primary method)

ssh -p 8022 u0_a375@localhost

Run as root

su -c 'command'

Workflow

1. Push code to device

scp -P 8022 src/kbase/test.c u0_a375@localhost:/data/data/com.termux/files/home/

2. Compile on device

ssh -p 8022 u0_a375@localhost "cd /data/data/com.termux/files/home && gcc -o test test.c"

3. Run on device (as root)

ssh -p 8022 u0_a375@localhost "su -c /data/data/com.termux/files/home/test"

4. Combined push, compile, run

scp -P 8022 src/kbase/test.c u0_a375@localhost:/data/data/com.termux/files/home/ && \
ssh -p 8022 u0_a375@localhost "cd /data/data/com.termux/files/home && gcc -o test test.c && su -c ./test"

Working Directory

/data/data/com.termux/files/home/

Debug Commands

Check kernel messages

ssh -p 8022 u0_a375@localhost "su -c 'dmesg | tail -50'"

List files

ssh -p 8022 u0_a375@localhost "ls -la /data/data/com.termux/files/home/"

Check GPU state

ssh -p 8022 u0_a375@localhost "su -c 'cat /sys/class/misc/mali0/device/gpuinfo'"
ssh -p 8022 u0_a371@localhost "su -c 'cat /sys/kernel/ged/hal/gpu_power_state'"

Check processes using /dev/mali0

ssh -p 8022 u0_a375@localhost "su -c 'ls -la /proc/*/fd/* 2>/dev/null | grep mali0'"

Strace a process using mali0

ssh -p 8022 u0_a375@localhost 'su -c "/data/data/com.termux/files/usr/bin/strace -f -e trace=ioctl -p PID 2>&1" | grep mali0'

Key Notes

• Use SSH with port 8022
• Always run test programs with su -c for root privileges
• Working directory on device is /data/data/com.termux/files/home/
• GCC is available in Termux for on-device compilation
• strace binary is at /data/data/com.termux/files/usr/bin/strace