kivava kivava

Importing Python source code from a script without the .py extension

Generally, to import a python module programatically when you know the file's path, you could do something like this:

import importlib.util
import sys

execinfo

To generate backtrace on segmentation fault, one simple way is use execinfo.h.

struct sigaction act;

memset((void *)&act, 0, sizeof(act));
act.sa_sigaction = sigv_handler;
act.sa_flags = SA_RESTART | SA_SIGINFO;

Generate A Deterministic RSA Key by A Specified SEED/Password

The OpenSSL cannot specify the seed by a simple CLI. The gnutls supports.

Generate a RSA 2048 bit key

certtool --generate-privkey --outfile privkey.pem --key-type=rsa --sec-param=medium -d 2 --seed=00000000000000000000000000000000000000000000000000000000

Fib sample

gcc -o fib -Og -rdynamic -finstrument-functions test_fib.c instrument.c -ldl

Keybase proof

I hereby claim:

I am kivava on github.
I am kivava (https://keybase.io/kivava) on keybase.
I have a public key ASAqyYmuAPWRYv76BFqzAEFjI5aYsIL1aiN6q2FrNIaaNwo

To claim this, I am signing this object:

	# Decompile
	dtc -I dtb -O dts -o devicetree.dts /boot/dtb/<your_devicetree_file_name>.dtb

	# Compile
	dtc -I dts -O dtb devicetree.dts -o <your_devicetree_file_name>.dtb

	# Merge with DTBO
	fdtoverlay -i modified-base.dtb -o modified-full.dtb /boot/tegra194-p3668-all-p3509-0000-user-custom.dtbo

	# DTS from fs

	#!/usr/bin/env bash

	set -Eeuo pipefail
	trap cleanup SIGINT SIGTERM ERR EXIT

	script_dir=$(cd "$(dirname "${BASH_SOURCE[0]}")" &>/dev/null && pwd -P)

	usage() {
	cat <<EOF
	Usage: $(basename "${BASH_SOURCE[0]}") [-h] [-v] [-f] -p param_value arg1 [arg2...]