c/c++

How to debug where a function returns using LLDB from the command line

How to debug where a function returns using LLDB from the command line

I often find myself in a situation when I want to know where a function returns. There’s no need to know the return value, as this may be the same for multiple code paths (e.g., nullptr if something went wrong). It is embarrassing, but I sometimes have put fprintf(stderr, "T1"); in my code just to follow which path the execution took. Needless to say, this behavior requires manual editing and recompilation and should be avoided if possible.

Here’s a way to elegantly debug where a function returns using lldb from the command line.

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2 tips to make your C++ projects compile 3 times faster

2 tips to make your C++ projects compile 3 times faster

In this article, I will demonstrate how to speed up your compilation times by distributing compilation load using a distcc server container.  Specifically, I’ll show how to set up and use containers running a distcc server to distribute the compilation load over a heterogeneous cluster of nodes (development laptop, old desktop PC, and a Mac). To improve the speed of recompilation, I will use ccache.

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Support Lifecycle for Clang/LLVM, Go, and Rust

Support Lifecycle for Clang/LLVM, Go, and Rust

On the heels of our recently announcement, General Availability of Clang/LLVM 6.0, Go 1.10, and Rust 1.29, I want to share how we’ll be supporting them going forward. Previously, these packages had been in “Technology Preview” status, which means that they were provided for “you to test functionality and provide feedback during the development process”, and were “not fully supported under Red Hat Subscription Level Agreements, may not be functionally complete, and are not intended for production use”.

So now that we’ve promoted them to fully supported status, what does that mean? In the simplest terms, General Availability (GA) means that these packages have officially entered the “Full Support Phase” of their lifecycle:

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