jevinskie

#!/usr/bin/env bash

sudo apt install libsctp-dev libbrotli-dev zlib1g-dev libzstd-dev libsnappy-dev libssh2-1-dev libnghttp2-dev libnghttp3-dev libngtcp2-dev libpsl-dev libgss-dev libcares2
sudo apt build-dep openssl curl

../git/openssl/Configure --prefix=$(readlink -f ~/base/openssl) --debug enable-brotli enable-egd enable-fips no-fips-securitychecks enable-pie sctp enable-tfo enable-zstd zlib enable-trace enable-weak-ssl-ciphers enable-unstable-qlog enable-md2 enable-rc5 enable-{ssl,ssl3,tls,tls1,tls1_1,tls1_2,tls1_3,dtls,dtls1,dtls1_2} enable-{ssl3,tls1,tls1_1,tls1_2,dtls1,dtls1_2}-method enable-{aria,bf,blake2,camellia,cast,chacha,cmac,des,dh,dsa,ecdh,ecdsa,idea,md4,mdc2,ocb,poly1305,rc2,rc4,rmd160,scrypt,seed,siphash,siv,sm2,sm3,sm4,whirlpool} enable-ec_nistp_64_gcc_128 LDFLAGS="-Wl,-rpath,$(readlink -f ~/base/openssl/lib64)"
make -j $(nproc)
make -j $(nproc) install

cmake -W Dev -G Ninja ../git/curl -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=$(readlink -f ~/base/curl) -DCMAKE_INSTALL_RPATH="$(re

jevinskie

namespace eval TclshLoader { 
    set tcl_rcFileDir [file join $env(HOME) .tcl rcfiles]
    if {[expr {[file exists $tcl_rcFileDir] && [file isdirectory $tcl_rcFileDir]}]} {
        set tcl_rcFiles [glob -type {f r} -directory $tcl_rcFileDir -- *.tcl]
        # put tclreadline.tcl last since it enters a loop and prevents further execution of .tclsh/.wishsh
        set tcl_rcFiles_tclreadlineIdx [lsearch -glob $tcl_rcFiles */tclreadline.tcl]
        if {[expr {($tcl_rcFiles_tclreadlineIdx != -1) && ([llength $tcl_rcFiles] > 1)}]} {
            set tcl_rcFiles_tclreadlinePath [lindex $tcl_rcFiles $tcl_rcFiles_tclreadlineIdx]
            set tcl_rcFiles [lreplace $tcl_rcFiles $tcl_rcFiles_tclreadlineIdx $tcl_rcFiles_tclreadlineIdx]
            lappend tcl_rcFiles $tcl_rcFiles_tclreadlinePath

jevinskie

->  % sudo ./self-lsmp
Password:
argv[0] = '/usr/bin/lsmp'
argv[1] = '-v'
argv[2] = '-p'
argv[3] = '33302'

self task regular: 0x00000203 aka 515
self task read:    0x00000b03 aka 2819

jevinskie

#!/usr/bin/env python3

# ->  % ./byte_histogram.py -i ./byte_histogram.py
# 20 ' ' [ 1426]: ██████████████████████████████████████████████████████████████████████████████████████████████
# e2     [  427]: ████████████████████████████▏
# 96     [  427]: ████████████████████████████▏
# 88     [  337]: ██████████████████████▏
# 0a ' ' [  183]: ████████████
# 27 ''' [  171]: ███████████▎
# 65 'e' [  144]: █████████▍

jevinskie

ASR(8) - System Manager's Manual

NAME

asr - Apple Software Restore; copy volumes (e.g. from disk images)

SYNOPSIS

asr verb

jevinskie

Size benchmarks of git clone --mirror archival methods

Tested with QEMU at db596ae19040574e41d086e78469014191d7d7fc.

$ git clone --mirror https://gitlab.com/qemu-project/qemu.git
$ ditto qemu.git qemu-nocomp.git
$ gtar -c qemu.git > qemu.git.tar
$ pushd qemu-nocomp.git
$ # We're going to repack the git repo into a single pack file with no zlib compression
$ # so later compression can compress the uncompressed pack file better.

jevinskie

jevin@ptblazer [02:38:19 AM] [~]
-> 🌩   % ./llvmlite-test.py | tee foo.ll
; ModuleID = "llvmlite-test.ll"
target triple = "x86_64-pc-linux-gnu"
target datalayout = ""

@"gvar" = constant i64* inttoptr (i64 4919 to i64*)
@"printf_fmt_buf" = constant [54 x i8] [i8 104, i8 101, i8 108, i8 108, i8 111, i8 32, i8 119, i8 111, i8 114, i8 108, i8 100, i8 32, i8 105, i8 39, i8 109, i8 32, i8 103, i8 114, i8 111, i8 117, i8 99, i8 104, i8 121, i8 32, i8 103, i8 118, i8 97, i8 114, i8 58, i8 32, i8 37, i8 112, i8 32, i8 109, i8 97, i8 116, i8 101, i8 114, i8 105, i8 97, i8 108, i8 105, i8 122, i8 101, i8 100, i8 32, i8 52, i8 50, i8 58, i8 32, i8 37, i8 100, i8 10, i8 0]
declare i64 @"printf"(i8* %".1", ...)

jevinskie

Analysis of sampling UVFSService (pid 28689) every 1 millisecond
Process:         UVFSService [28689]
Path:            /System/Library/PrivateFrameworks/UVFSXPCService.framework/Versions/A/XPCServices/UVFSService.xpc/Contents/MacOS/UVFSService
Load Address:    0x102bc4000
Identifier:      UVFSService
Version:         ???
Code Type:       ARM64E
Platform:        macOS
Parent Process:  launchd [1]

jevinskie

memfd_create(2) - Hold on to your alligator hats!

What the Heck is This?

• memfd_create, baby! It's like conjuring a file out of the swampy ether!

Tools in My Shed

• Standard C library (libc, -lc), the backbone of this whole shebang!

jevinskie

	<!DOCTYPE html>
	<html>
		<head>
			<meta charset="UTF-8">
			<title>terminal-to-html Preview</title>
			<style>.term-container {
  background: #171717;
  border-radius: 5px;
  color: white;