gcc Archives - Embedded Artistry

20 September 202328 September 2023

Leveraging Your Toolchain to Improve Security

Your toolchain is a useful place to start when incorporating security into your development process. There are several warnings and program augmentations that help harden your application. This article focuses on GCC and Clang, as that's what I primarily use. I'm happy to take suggestions from readers for other toolchains. The flags in this option …

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17 August 202030 June 2023

Three GCC Flags for Analyzing Memory Usage

I learned about three new GCC compiler/linker flags this week that are helpful for monitoring a system’s memory usage. I was surprised that I hadn’t previously run across them, and it seems like other developers in my network didn’t know about these flags either! Perhaps this isn’t too out of the ordinary considering that two …

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11 October 201721 April 2020

Demystifying ARM Floating Point Compiler Options

When I first started bringing up new ARM platforms, I was pretty confused by the various floating point options such as -mfloat-abi=softfp or -mfpu=fpv4-sp-d16. I imagine this is confusing to other developers as well, so I'd like to share my ARM floating-point cheat sheet with the world. An Overview of the ARM Floating-Point Architecture Before …

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7 June 201715 December 2021

Warnings: -Weverything and the Kitchen Sink

I am a fan of warnings. By highlighting dangerous or ambiguous areas of our code, warnings provide valuable insight and advice for keeping your programs tidy. Since I like warnings so much, I try to turn on as many of them as possible, while sifting out any annoying warnings like -Wunknown-pragmas. Many developers are familiar …

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22 May 201727 October 2023

-Werror is Not Your Friend

I want to make a few points up front to short-circuit common misunderstandings with this article: I have a zero warning policy on my projects. I turn on a lot of warnings. -Wall, -Wextra, and a whole host of specific warning flags. I supplement the compiler warnings with analysis from a suite of static analysis …

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