| Headlines |
| 2018-05-22 |
Haiku unifies ARM builds |
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Haiku developers have been working on ARM ports of their operating system for some time. The ARM ports, along with the project's m68k and PowerPC builds, are still considered experimental and are not presented in the same tier as Haiku's x86 builds. However, work is moving forward and an effort is being made to unify the ARM ports. A blog post on the Haiku website explains: "Up until recently, Haiku builds for ARM have targeted individual ARM boards. The compile process for ARM images required two things: an architecture, and a target board (such as the Raspberry Pi 2). This board setting adjusted a large number of defines throughout Haiku at compile time to set the operating system up for the target ARM device. The board selection also handled placing all the propriety bits (a lot of which have sketchy licensing) into the Haiku image during compile. Haiku would then have to distribute these files. (sketchy licensing and all) Over the past few years, François Revol, Ithamar R. Adema, and others have worked to add Flat Device Tree (FDT) support to Haiku. FDT's enable operating systems to obtain core knowledge of the devices they run on by simply swapping one or more compiled binary files. These files describe critical things the operating system needs to know about the hardware they run on. Really important things such as what devices exist at what memory locations. (Think video frame buffers, serial ports, etc). In a series of cryptic commits in July 2017, I removed these board-centric build steps with grand plans of making testing (and running) Haiku on ARM devices easier." The post credits the Fedora ARM port for providing the inspiration for the new, unified approach. |
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