ASR(8) - System Manager's Manual
asr - Apple Software Restore; copy volumes (e.g. from disk images)
asr verb
Jevin Sweval jevinskie
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| 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
/ output-root.log
Last active
April 26, 2024 16:47
Run lsmp on *something*, *anything* without root privileges. How? A wrapper program that gets its own PID then exec's into lsmp with that PID as the process to inspect.
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| -> % 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
/ byte_histogram.py
Created
April 12, 2024 03:53
Python pretty byte histogram rendering for TUI
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| #!/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
/ git-mirroring-compression-size-benchmarks.md
Created
March 6, 2024 22:10
Archiving git repos
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.
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| 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
/ Sample of UVFSService
Last active
February 16, 2024 06:10
Apple LiveFS/UserFS - sampling while true; do touch .; done on a FAT32 USB partition
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| 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_florida_man.md
Last active
December 8, 2023 12:34
Florida Manpage for memfd_create(2)
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!
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <title>terminal-to-html Preview</title> | |
| <style>.term-container { | |
| background: #171717; | |
| border-radius: 5px; | |
| color: white; |
jevinskie
/ patriot-missile-computer-wcc.md
Last active
November 7, 2023 03:37
MIM-104C PAC-2 WCC (Weapons Control Computer) brought to you by Raytheon
FIELD MANUAL NO. 44-85 - PATRIOT BATTALION AND BATTERY OPERATIONS
The computer within the Patriot system (see Figure B-6, next page) is a 24-bit parallel militarized computer with fixed and floating point capability. The WCC is organized in a multi-processor configuration which operates at a maximum clock rate of 6 megahertz.
The WCC provides the necessary data processing for the Patriot FU, including capability for communications with other FUs or battalions through a routing logic radio interface unit (RLRIU). The major subsystems within the computer system are the: Central processing unit (CPU). Input/output control unit (IOCU). Monolithic memory unit (MMU). Peripheral control unit (PCU).
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