Package bio implements common I/O abstractions used within the Go toolchain.

Package browser provides utilities for interacting with users' browsers.

Package diff implements a Diff function that compare two inputs using the 'diff' tool.

Package dwarf generates DWARF debugging information.

Package edit implements buffered position-based editing of byte slices.

Package gcprog implements an encoder for packed GC pointer bitmaps, known as GC programs.

Package goobj implements reading of Go object files and archives.

Originally, Go object files were Plan 9 object files, but no longer.

Package objfile implements portable access to OS-specific executable files.

Package test2json implements conversion of test binary output to JSON.