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Boot messages of a Linux kernel 2.6.25.17. The basic components of the Linux family of operating systems, which are based on the Linux kernel, the GNU C Library, BusyBox or forks thereof like μClinux and uClibc, have been programmed with a certain level of abstraction in mind.
Bob Amstadt, the initial project leader, and Eric Youngdale started the Wine project in 1993 as a way to run Windows applications on Linux.It was inspired by two Sun Microsystems products, Wabi for the Solaris operating system, and the Public Windows Interface, [10] which was an attempt to get the Windows API fully reimplemented in the public domain as an ISO standard but rejected due to ...
The major contemporary general-purpose kernels are shown in comparison. Only an overview of the technical features is detailed. section below). Linux (kernel), Android, Ubuntu, CentOS, webOS, Fire OS, Firefox OS, ChromeOS, Syllable Server, Mastodon Linux, OpenBSD/Linux, Plan 9/Linux, Sailfish OS, Tizen, amongst others.
The calling convention of the System V AMD64 ABI is followed on Solaris, Linux, FreeBSD, macOS, [26] and is the de facto standard among Unix and Unix-like operating systems. The OpenVMS Calling Standard on x86-64 is based on the System V ABI with some extensions needed for backwards compatibility. [ 27 ]
A small-footprint Linux distribution based on and compatible with Debian, intended for use on resource-limited embedded systems. [74] Finnix. A small system-administration Live CD that is available for multiple architectures [75] gLinux. gLinux is a Linux Distro used for Google Employees.
The x86-64 architecture does not use segmentation in long mode (64-bit mode). Four of the segment registers, CS, SS, DS, and ES, are forced to base address 0, and the limit to 2 64. The segment registers FS and GS can still have a nonzero base address. This allows operating systems to use these segments for special purposes.
However, most 32-bit applications will work well. 64-bit users are forced to install a virtual machine of a 16- or 32-bit operating system to run 16-bit applications or use one of the alternatives for NTVDM. [39] Mac OS X 10.4 "Tiger" and Mac OS X 10.5 "Leopard" had only a 32-bit kernel, but they can run 64-bit user-mode code on 64-bit processors.
Released in 2011, the ARMv8-A architecture added support for a 64-bit address space and 64-bit arithmetic with its new 32-bit fixed-length instruction set. [13] Arm Ltd. has also released a series of additional instruction sets for different rules; the "Thumb" extension adds both 32- and 16-bit instructions for improved code density , while ...