| bytes | Package bytes implements functions for the manipulation of byte slices. |
| cmd/internal/bio | Package bio implements common I/O abstractions used within the Go toolchain. |
| cmd/internal/goobj | |
| cmd/internal/obj | |
| cmd/internal/objabi | |
| cmd/internal/sys | |
| cmd/link/internal/sym | |
| debug/elf | Package elf implements access to ELF object files. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| log | Package log implements a simple logging package. |
| math/bits | Package bits implements bit counting and manipulation functions for the predeclared unsigned integer types. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |