Imports of package build

PathSynopsis
errorsPackage errors implements functions to manipulate errors.
flagPackage flag implements command-line flag parsing.
fmtPackage fmt implements formatted I/O with functions analogous to C's printf and scanf.
github.com/mmcloughlin/avo/attrPackage attr provides attributes for text and data sections.
github.com/mmcloughlin/avo/buildtagsPackage buildtags provides types for representing and manipulating build constraints.
github.com/mmcloughlin/avo/gotypesPackage gotypes provides helpers for interacting with Go types within avo functions.
github.com/mmcloughlin/avo/internal/stackPackage stack provides helpers for querying the callstack.
github.com/mmcloughlin/avo/irPackage ir provides the intermediate representation of avo programs.
github.com/mmcloughlin/avo/operandPackage operand provides types for instruction operands.
github.com/mmcloughlin/avo/passPackage pass implements processing passes on avo Files.
github.com/mmcloughlin/avo/printerPackage printer implements printing of avo files in various formats.
github.com/mmcloughlin/avo/regPackage reg provides types for physical and virtual registers, and definitions of x86-64 register families.
github.com/mmcloughlin/avo/srcPackage src provides types for working with source files.
github.com/mmcloughlin/avo/x86Package x86 provides constructors for all x86-64 instructions.
go/typesPackage types declares the data types and implements the algorithms for type-checking of Go packages.
golang.org/x/tools/go/packagesPackage packages loads Go packages for inspection and analysis.
ioPackage io provides basic interfaces to I/O primitives.
logPackage log implements a simple logging package.
osPackage os provides a platform-independent interface to operating system functionality.
runtime/pprofPackage pprof writes runtime profiling data in the format expected by the pprof visualization tool.