| debug/elf | Package elf implements access to ELF object files. |
| debug/goobj | |
| debug/gosym | Package gosym implements access to the Go symbol and line number tables embedded in Go binaries generated by the gc compilers. |
| debug/macho | Package macho implements access to Mach-O object files. |
| debug/pe | Package pe implements access to PE (Microsoft Windows Portable Executable) files. |
| debug/plan9obj | Package plan9obj implements access to Plan 9 a.out object files. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |