Search results
Results from the WOW.Com Content Network
In macOS, the Mach-O file format is the native executable format. However, PEF was still supported on PowerPC-based Macintoshes running Mac OS X and was used by some Carbon applications ported from earlier versions for classic Mac OS, so that the same binary could be run on classic Mac OS and Mac OS X.
Another significant change to the Mach-O format is the change in how the Link Edit tables (found in the __LINKEDIT section) function. In 10.6 these new Link Edit tables are compressed by removing unused and unneeded bits of information, however Mac OS X 10.5 and earlier cannot read this new Link Edit table format.
In addition to the binary application code, the executables may contain headers and tables with relocation and fixup information as well as various kinds of meta data. Among those formats listed, the ones in most common use are PE (on Microsoft Windows ), ELF (on Linux and most other versions of Unix ), Mach-O (on macOS and iOS ) and MZ (on DOS ).
In computer security, executable-space protection marks memory regions as non-executable, such that an attempt to execute machine code in these regions will cause an exception. It makes use of hardware features such as the NX bit (no-execute bit), or in some cases software emulation of those features. However, technologies that emulate or ...
The concept of a universal binary originated with "Multi-Architecture Binaries" in NeXTSTEP, the main architectural foundation of Mac OS X.NeXTSTEP supports universal binaries so that one executable image can run on multiple architectures, including Motorola's m68k, Intel's x86, Sun Microsystems's SPARC, and Hewlett-Packard's PA-RISC.
The HX DOS Extender also uses the PE format for native DOS 32-bit binaries, and can execute some Windows binaries in DOS, thus acting like an equivalent of Wine for DOS. Mac OS X 10.5 has the ability to load and parse PE files, although it does not maintain binary compatibility with Windows. [10]
Since XML files, however, are not the most space-efficient means of storage, Mac OS X 10.2 introduced a new format where property list files are stored as binary files. Starting with Mac OS X 10.4, this is the default format for preference files. In Mac OS X 10.7, support for reading and writing files in JSON format was introduced. JSON and ...
That is, an SDA created on a Commodore 64 but run on a Commodore 128 in Commodore 128 mode will crash the machine, and vice versa. The intended successor to SDA is SFX. .sea Self Extracting Archive Classic Mac OS: Classic Mac OS (implicitly) A pre-Mac OS X Self-Extracting Archive format. StuffIt, Compact Pro, Disk Doubler and others could ...