research!rsc: The xz attack shell script
Posted on Tuesday, April 2, 2024. Updated Wednesday, April 3, 2024. Introduction Andres Freund published the existence of the xz attack on 2024-03-29 to the public oss-security@openwall mailing list. The day before, he alerted Debian security and the (private) distros@openwall list. In his mail, he says that he dug into this after “observing a few odd symptoms around liblzma (part of the xz packag
research!rsc: Programming Language Memory Models (Memory Models, Part 2)
Programming language memory models answer the question of what behaviors parallel programs can rely on to share memory between their threads. For example, consider this program in a C-like language, where both x and done start out zeroed. // Thread 1 // Thread 2 x = 1; while(done == 0) { /* loop */ } done = 1; print(x); The program attempts to send a message in x from thread 1 to thread 2, using d
research!rsc: Go += Package Versioning (Go & Versioning, Part 1)
We need to add package versioning to Go. More precisely, we need to add the concept of package versions to the working vocabulary of both Go developers and our tools, so that they can all be precise when talking to each other about exactly which program should be built, run, or analyzed. The go command needs to be able to tell developers exactly which versions of which packages are in a particular
research!rsc: Go Data Structures
When explaining Go to new programmers, I've found that it often helps to explain what Go values look like in memory, to build the right intuition about which operations are expensive and which are not. This post is about basic types, structs, arrays, and slices. Basic types Let's start with some simple examples: The variable i has type int, represented in memory as a single 32-bit word. (All these
research!rsc: How To Build a User-Level CPU Profiler
When I spent a summer as a Google intern in 2006, one of the many pleasant surprises was Google’s pprof tool, which makes profiling a C++ program’s CPU and memory usage incredibly easy. It had already been open sourced, and when I returned to grad school, I incorporated pprof into my standard development toolbox when writing C programs. Later, when I was back at Google working on Go, implementing
1
リリース、障害情報などのサービスのお知らせ
最新の人気エントリーの配信
処理を実行中です
j次のブックマーク
k前のブックマーク
lあとで読む
eコメント一覧を開く
oページを開く
