zhuowei
/ bitcode2intel
Last active May 18, 2019
— forked from steventroughtonsmith/bitcode2intel
Modified version of Stroughtonsmith's bitcode2intel script; doesn't work; gives"ld: in section __TEXT,__swift5_types reloc 0: X86_64_RELOC_SUBTRACTOR must have r_extern=1 file 'F31BA3F0-12EE-482A-8399-26EEA2E654DD.o' for architecture x86_64"
View bitcode2intel
| #!/bin/bash | |
| TARGET="$( cd "$(dirname "$1")" ; pwd -P )/$1" | |
| SYSROOT="/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator.sdk" | |
| TARGET_ARCH=x86_64 | |
| LLVMROOT="/Users/zhuowei/Documents/prog/clang+llvm-8.0.0-x86_64-apple-darwin" | |
| export IPHONEOS_DEPLOYMENT_TARGET=12.2 | |
| rm -r /tmp/bitcode2intel | |
| mkdir -p /tmp/bitcode2intel |
zhuowei
/ acpiview_qemu.txt
Created Feb 26, 2019
View acpiview_qemu.txt
| ACPIView output from EDK2 EFI Shell on QEMU Aarch64: | |
| $ qemu-system-aarch64 --version | |
| QEMU emulator version 2.11.1(Debian 1:2.11+dfsg-1ubuntu7.9) | |
| Copyright (c) 2003-2017 Fabrice Bellard and the QEMU Project developers | |
| $ qemu-system-aarch64 -M virt,gic-version=3 -m 1G -cpu cortex-a57 -nographic -bios workspace/Build/ArmVirtQemu-AARCH64/DEBUG_GCC5/FV/QEMU_EFI.fd | |
| --------------- RSDP Table --------------- | |
| Address : 0x7C020000 |
zhuowei
/ nextfloat.c
Created Jan 27, 2019
View nextfloat.c
| #include <stdio.h> | |
| int main() { | |
| union { | |
| unsigned int a; | |
| float b; | |
| } theunion; | |
| theunion.a = (0x80 << 23) | 0x7fffff; | |
| printf("%x %.30f\n", theunion.a, theunion.b); | |
| theunion.a += 1; |
zhuowei
/ dumped.txt
Last active Sep 8, 2018
Annotated dump of https://github.com/sifive/freedom-u540-c000-bootloader/blob/challenge/u540-c000-release/bootrom.bin
View dumped.txt
| bootrom.elf: file format elf64-littleriscv | |
| SYMBOL TABLE: | |
| 0000000000010000 l d .data 0000000000000000 .data | |
| 0000000000010000 g .data 0000000000000000 _binary_bootrom_bin_start | |
| 0000000000013068 g .data 0000000000000000 _binary_bootrom_bin_end | |
| 0000000000003068 g *ABS* 0000000000000000 _binary_bootrom_bin_size | |
zhuowei
/ avatars.db.dump
Created Aug 12, 2018
plutil -p - <~/Library/Developer/CoreSimulator/Devices/<device>/data/Library/Avatar/avatars.db and also a dump of that hex blob inside the first dump
View avatars.db.dump
| { | |
| "$archiver" => "NSKeyedArchiver" | |
| "$objects" => [ | |
| 0 => "$null" | |
| 1 => { | |
| "$class" => <CFKeyedArchiverUID 0x7fb2a4c0d8d0 [0x7fffa1485af0]>{value = 12} | |
| "domains" => <CFKeyedArchiverUID 0x7fb2a4c0d890 [0x7fffa1485af0]>{value = 2} | |
| "records" => <CFKeyedArchiverUID 0x7fb2a4c0d8b0 [0x7fffa1485af0]>{value = 8} | |
| } | |
| 2 => { |
zhuowei
/ crash.swift
Created Aug 6, 2018
View crash.swift
| // crashes Xcode 10 beta 4. | |
| // the last line is supposed to error, not trigger a compiler segfault | |
| import Foundation | |
| import ObjectiveC | |
| typealias BundleForClass_Type = @convention(c) (AnyClass, Selector, AnyClass) -> Bundle | |
| private func AVTUIEnvironment_storeLocation_hook(bundleClass: AnyClass, selector: Selector) -> NSURL { | |
| abort() | |
| } |
zhuowei
/ treesort_nestedfunctions.py
Created Jul 24, 2018
Tree sort using a closure to hold tree nodes
View treesort_nestedfunctions.py
| #!/usr/bin/env python3 | |
| # https://en.wikipedia.org/wiki/Tree_sort#Example | |
| opRead = 0 | |
| opWrite = 1 | |
| varVal = 0 | |
| varLeft = 1 | |
| varRight = 2 | |
| # learned this was possible from https://aphyr.com/posts/340-reversing-the-technical-interview |
View serialout
| iBoot version: | |
| corecrypto_kext_start called | |
| FIPSPOST_KEXT [64144875] fipspost_post:156: PASSED: (4 ms) - fipspost_post_integrity | |
| FIPSPOST_KEXT [64366750] fipspost_post:162: PASSED: (1 ms) - fipspost_post_hmac | |
| FIPSPOST_KEXT [64504187] fipspost_post:163: PASSED: (0 ms) - fipspost_post_aes_ecb | |
| FIPSPOST_KEXT [64659750] fipspost_post:164: PASSED: (0 ms) - fipspost_post_aes_cbc | |
| FIPSPOST_KEXT [72129500] fipspost_post:165: PASSED: (117 ms) - fipspost_post_rsa_sig | |
| FIPSPOST_KEXT [76481625] fipspost_post:166: PASSED: (67 ms) - fipspost_post_ecdsa | |
| FIPSPOST_KEXT [77264187] fipspost_post:167: PASSED: (11 ms) - fipspost_post_ecdh |
zhuowei
/ gist:907ed33729d0bf7a30425f49f2dbec1e
Created Jun 5, 2018
View gist:907ed33729d0bf7a30425f49f2dbec1e
| $ /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/ld -o why -iosmac_version_min 12.0 why.o | |
| ld: warning: Auto-Linking library not found for -lswiftCore | |
| ld: warning: Auto-Linking library not found for -lswiftSwiftOnoneSupport | |
| $ /Applications/Xcode-beta.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/otool -l why | |
| why: | |
| Mach header | |
| magic cputype cpusubtype caps filetype ncmds sizeofcmds flags | |
| 0xfeedfacf 16777223 3 0x00 2 14 920 0x00000085 | |
| Load command 0 | |
| cmd LC_SEGMENT_64 |
zhuowei
/ iosmac.txt
Created Jun 5, 2018
View iosmac.txt
| $ grep -r iosmac . | |
| Binary file ./Developer/Platforms/AppleTVOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/tvOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/UIKitCore.framework/UIKitCore matches | |
| Binary file ./Developer/Platforms/AppleTVOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/tvOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/RemoteTextInput.framework/RemoteTextInput matches | |
| Binary file ./Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/PrivateFrameworks/RemoteTextInput.framework/RemoteTextInput matches | |
| Binary file ./Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/Applications/News.app/News matches | |
| Binary file ./Developer/Platforms/WatchOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/watchOS.simruntime/Contents/Resource |
NewerOlder