saagarjha

// Example usage:
// Swizzler<NSString *, NSDateFormatter *, NSDate *> NSDateFormatter_stringFromDate_ {
//     NSDateFormatter.class, @selector(stringFromDate:), [&](auto self, auto date) {
//         if ([NSCalendar.currentCalendar components:NSCalendarUnitWeekday fromDate:date].weekday == 4) {
//             return @"It Is Wednesday My Dudes";
//         } else {
//             return NSDateFormatter_stringFromDate_(self, date);
//         }
//     }
// };

saagarjha

// To compile: clang++ -arch x86_64 -arch arm64 -std=c++20 library_injector.cpp -lbsm -lEndpointSecurity -o library_injector,
// then codesign with com.apple.developer.endpoint-security.client and run the
// program as root.

#include <EndpointSecurity/EndpointSecurity.h>
#include <algorithm>
#include <array>
#include <bsm/libbsm.h>
#include <cstddef>
#include <cstdint>

tjw

(*
With a QuickTime file open QuickTime Player, and an OmniOutliner file open that matches the title below, if this is invoked:

- If the QT file is playing, it is paused and the current playback speed is recorded (use option-click on the fast forward button to increase playing speed in QuickTime Player)
  - If there is not a row starting with the right session number, one is created at the top level (with a link back to the QT file)
  - A new row is added with the current time code and the insertion point to the right of it and OmniOutliner is activated.
  
- Otherwise, playing in the QT file is resumed a couple seconds before the point at which it was paused, with the playback rate restored, and QT is activated

- Setup:

theevilbit

wget --no-check-certificate --recursive --domains=opensource.apple.com --no-clobber --accept "*.gz" --no-parent -l2 https://opensource.apple.com/tarballs
wget --no-check-certificate --recursive --domains=opensource.apple.com --no-clobber --accept "*.gz" -l2 https://opensource.apple.com/
wget --no-check-certificate --recursive --domains=opensource.apple.com --no-clobber --accept "*.gz" --no-parent -l3 https://opensource.apple.com/darwinbuild/

steipete

@objc(PSTArchitecture) class Architecture: NSObject {
    /// Check if process runs under Rosetta 2.
    ///
    /// Use to disable tests that use WebKit when running on Apple Silicon
    /// FB8920323: Crash in WebKit memory allocator on Apple Silicon when  iOS below 14
    /// Crash is in JavaScriptCore: bmalloc::HeapConstants::HeapConstants(std::__1::lock_guard<bmalloc::Mutex> const&)
    @objc class var isRosettaEmulated: Bool {
        // Issue is specific to Simulator, not real devices
        #if targetEnvironment(simulator)
        return processIsTranslated() == EMULATED_EXECUTION

kuwerty

// requires this fork of sourcekit-lsp:
//    https://github.com/kuwerty/sourcekit-lsp

/*
Add buildServer.json to 'root' of source (or wherever sourcekit-lsp reads it):
{
    "name": "BuildimotoBuildServer",
    "version": "1.0.0",
    "bspVersion": "2.0",
    "languages": [ "swift", "c", "cpp", "objective-c", "objective-cpp" ],

dsabanin

defaults write com.apple.dt.Xcode ShowDVTDebugMenu -bool YES
sudo mkdir -p /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode
sudo touch /Applications/Xcode.app/Contents/Developer/AppleInternal/Library/Xcode/AppleInternal.plist

# Don't forget to restart Xcode

zcutlip

Importing Hand-Rolled C Header Files in LLDB

Scenario

• We're debugging a dylib, libhello.dylib
• The dylib is linked from hello
• The exported function is helloworld()
• We do not have source, but have reversed a struct from the library and created a hand-crafted header file

Header File

danielmartin

If you work on a Swift project that follows the Model-View-ViewModel (MVVM) architecture or similar, you may want to jump to counterpart in Xcode from your view to your model, and then to your view model. (ie. by using Ctrl+Cmd+Up and Ctrl+Cmd+Down).

You can do this in recent versions of Xcode by setting a configuration default.

From a terminal, just type this command and press Enter:

defaults write com.apple.dt.Xcode IDEAdditionalCounterpartSuffixes -array-add "ViewModel" "View"

keith

addmedia
addphoto
addvideo
appinfo
boot
bootstatus
clone
create
darwinup
delete