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PREEMPT_RT was a set of patches for the Linux kernel which implement both hard and soft real-time computing capabilities. [1] On September 20, 2024, PREEMPT_RT was fully merged and enabled in mainline Linux on the supported architectures x86, x86_64, RISC-V and ARM64. [2] This will make kernel v6.12 the first release to include baked-in real ...
By 2011, Clang seemed to retain this advantage in compiler performance. [27] [28] As of mid-2014, Clang still consistently compiles faster than GCC in a mixed compile time and program performance benchmark. [29] However, by 2019, Clang is significantly slower at compiling the Linux Kernel than GCC while remaining slightly faster at compiling ...
Buildroot is a set of Makefiles and patches that simplifies and automates the process of building a complete and bootable Linux environment for an embedded system, while using cross-compilation to allow building for multiple target platforms on a single Linux-based development system.
musl is a C standard library intended for operating systems based on the Linux kernel, released under the MIT License. [3] It was developed by Rich Felker to write a clean, efficient, and standards-conformant libc implementation. [4]
The Linux from Scratch project, like BitBake, also supports cross-compiling Linux for ARM embedded systems such as the Raspberry Pi and BeagleBone. [ 7 ] [ 8 ] The book Hardened Linux From Scratch (HLFS) focuses on security enhancements such as hardened kernel patches, mandatory access control policies, stack-smashing protection , and address ...
Linaro is an engineering organization that works on free and open-source software such as the Linux kernel, the GNU Compiler Collection (GCC), QEMU, power management, graphics and multimedia interfaces for the ARM family of instruction sets and implementations thereof as well as for the Heterogeneous System Architecture (HSA).
The Linux kernel notably makes wide use of self-modifying code; it does so to be able to distribute a single binary image for each major architecture (e.g. IA-32, x86-64, 32-bit ARM, ARM64...) while adapting the kernel code in memory during boot depending on the specific CPU model detected, e.g. to be able to take advantage of new CPU ...
Structure of monolithic kernel and microkernel-based operating systems, respectively. Reflecting on the nature of monolithic kernel based systems, where a driver (which has, according to Minix creator Tanenbaum, approximately 3–7 times as many bugs as a usual program) [17] can bring down the whole system, [18] Minix 3 aims to create an operating system that is a "reliable, self-healing ...