Describes the location within the binary of an object file targeted at a single architecture. Declared in /usr/include/mach-o/fat.
SDK
Framework
struct fat_arch {
...
};
An array of fat data structures appears directly after the fat data structure of a binary that contains object files for multiple architectures.
Regardless of the content this data structure describes, all its fields are stored in big-endian byte order.
cpusubtypeAn enumeration value of type cpu. Specifies the specific member of the CPU family on which this entry may be used or a constant specifying all members.
offsetOffset to the beginning of the data for this CPU.
sizeSize of the data for this CPU.
alignThe power of 2 alignment for the offset of the object file for the architecture specified in cputype within the binary. This is required to ensure that, if this binary is changed, the contents it retains are correctly aligned for virtual memory paging and other uses.