go/src/cmd/link/internal/ld/ar.go

const SARMAG …

const SAR_HDR …

const ARMAG …

type ArHdr …

// pruneUndefsForWindows trims the list "undefs" of currently
// outstanding unresolved symbols to remove references to DLL import
// symbols (e.g. "__imp_XXX"). In older versions of the linker, we
// would just immediately forward references from the import sym
// (__imp_XXX) to the DLL sym (XXX), but with newer compilers this
// strategy falls down in certain cases. We instead now do this
// forwarding later on as a post-processing step, and meaning that
// during the middle part of host object loading we can see a lot of
// unresolved (SXREF) import symbols. We do not, however, want to
// trigger the inclusion of an object from a host archive if the
// reference is going to be eventually forwarded to the corresponding
// SDYNIMPORT symbol, so here we strip out such refs from the undefs
// list.
func pruneUndefsForWindows(ldr *loader.Loader, undefs, froms []loader.Sym) ([]loader.Sym, []loader.Sym) { … }

// hostArchive reads an archive file holding host objects and links in
// required objects. The general format is the same as a Go archive
// file, but it has an armap listing symbols and the objects that
// define them. This is used for the compiler support library
// libgcc.a.
func hostArchive(ctxt *Link, name string) { … }

type archiveMap …

// readArmap reads the archive symbol map.
func readArmap(filename string, f *bio.Reader, arhdr ArHdr) archiveMap { … }