changkun

LLDB Debugging Cheat Sheet

Commands

LLDB Commands

LLDB comes with a great set of commands for powerful debugging.

help

Your starting point for anything. Type help to get a list of all commands, plus any user installed ones. Type 'help for more information on a command. Type help to get help for a specific option in a command too.

changkun

No problem,

run

git filter-branch --msg-filter "cat - && echo && echo 'Signed-off-by: Your Name <Your.Name@example.com>'" HEAD~2..HEAD

To sign-off the last two commits.

Then force to push them to the remote repo with the -f option:

changkun

changkun

package main

// #cgo LDFLAGS: -framework Carbon
// #include <Carbon/Carbon.h>
// extern void Callback();
// void RunApplicationEventLoop();
// static inline OSStatus handler(EventHandlerCallRef nextHandler, EventRef theEvent, void* userData)
// {
//   Callback();
//   return 1;

changkun

#include <iostream>
#include <fstream>
#include <windows.h>
#include <string>
#include <iomanip>
#include <sstream>

int width = 2;
int height = 2;
int32_t bitmap2x2[4] = { 0xffff0000, 0xff00ff00, 0xff0000ff, 0x00000000 };

changkun

Example: Moving up to a few commits to another branch

Branch A has commits (X,Y) that also need to be in Branch B. The cherry-pick operations should be done in the same chronological order that the commits appear in Branch A.

cherry-pick does support a range of commits, but if you have merge commits in that range, it gets really complicated

git checkout branch-B
git cherry-pick X
git cherry-pick Y

changkun

tmux cheatsheet

As configured in my dotfiles.

start new:

tmux

start new with session name:

changkun

Compile Go for Apple Silicon (M1)

Follow these short instructions on how to compile Go for Apple Silicon (M1). From here on out, we may simply refer to it as the "ARM device".

This entire process should only take about 5-10 minutes, but please read through everything carefully, in order to avoid any potential issues along the way.

Note that at the time of writing this, Go was not yet officially available for Apple's ARM.

Additionally it should be noted that this guide expects you to only be working on the ARM device, and not to have Go installed (yet).

changkun

        readinessProbe:
          exec:
            command: ["/root/grpc_health_probe", "-addr=:6666"]
          initialDelaySeconds: 1
        livenessProbe:
          exec:
            command: ["/root/grpc_health_probe", "-addr=:6666"]
          initialDelaySeconds: 2
        imagePullPolicy: IfNotPresent

changkun

// How to build: "CC=clang go build"

package main

import (
	"fmt"
	"net/url"
	"strconv"
	"unsafe"
)