diff options
Diffstat (limited to 'src/cmd/link/internal/ld/link.go')
| -rw-r--r-- | src/cmd/link/internal/ld/link.go | 81 |
1 files changed, 16 insertions, 65 deletions
diff --git a/src/cmd/link/internal/ld/link.go b/src/cmd/link/internal/ld/link.go index df3845fac3..24866d8e8c 100644 --- a/src/cmd/link/internal/ld/link.go +++ b/src/cmd/link/internal/ld/link.go @@ -32,7 +32,6 @@ package ld import ( "bufio" - "cmd/internal/obj" "cmd/internal/objabi" "cmd/internal/sys" "cmd/link/internal/loader" @@ -42,67 +41,61 @@ import ( ) type Shlib struct { - Path string - Hash []byte - Deps []string - File *elf.File - gcdataAddresses map[*sym.Symbol]uint64 + Path string + Hash []byte + Deps []string + File *elf.File } // Link holds the context for writing object code from a compiler // or for reading that input into the linker. type Link struct { - Out *OutBuf + Target + ErrorReporter + ArchSyms + + outSem chan int // limits the number of output writers + Out *OutBuf Syms *sym.Symbols - Arch *sys.Arch Debugvlog int Bso *bufio.Writer Loaded bool // set after all inputs have been loaded as symbols - IsELF bool - HeadType objabi.HeadType - - linkShared bool // link against installed Go shared libraries - LinkMode LinkMode - BuildMode BuildMode - canUsePlugins bool // initialized when Loaded is set to true compressDWARF bool - Tlsg *sym.Symbol + Tlsg2 loader.Sym Libdir []string Library []*sym.Library LibraryByPkg map[string]*sym.Library Shlibs []Shlib - Tlsoffset int Textp []*sym.Symbol + Textp2 []loader.Sym Filesyms []*sym.Symbol Moduledata *sym.Symbol + Moduledata2 loader.Sym PackageFile map[string]string PackageShlib map[string]string tramps []*sym.Symbol // trampolines - // unresolvedSymSet is a set of erroneous unresolved references. - // Used to avoid duplicated error messages. - unresolvedSymSet map[unresolvedSymKey]bool - // Used to implement field tracking. Reachparent map[*sym.Symbol]*sym.Symbol compUnits []*sym.CompilationUnit // DWARF compilation units runtimeCU *sym.CompilationUnit // One of the runtime CUs, the last one seen. - relocbuf []byte // temporary buffer for applying relocations - loader *loader.Loader cgodata []cgodata // cgo directives to load, three strings are args for loadcgo cgo_export_static map[string]bool cgo_export_dynamic map[string]bool + + datap []*sym.Symbol + dynexp2 []loader.Sym } type cgodata struct { @@ -111,48 +104,6 @@ type cgodata struct { directives [][]string } -type unresolvedSymKey struct { - from *sym.Symbol // Symbol that referenced unresolved "to" - to *sym.Symbol // Unresolved symbol referenced by "from" -} - -// ErrorUnresolved prints unresolved symbol error for r.Sym that is referenced from s. -func (ctxt *Link) ErrorUnresolved(s *sym.Symbol, r *sym.Reloc) { - if ctxt.unresolvedSymSet == nil { - ctxt.unresolvedSymSet = make(map[unresolvedSymKey]bool) - } - - k := unresolvedSymKey{from: s, to: r.Sym} - if !ctxt.unresolvedSymSet[k] { - ctxt.unresolvedSymSet[k] = true - - // Try to find symbol under another ABI. - var reqABI, haveABI obj.ABI - haveABI = ^obj.ABI(0) - reqABI, ok := sym.VersionToABI(int(r.Sym.Version)) - if ok { - for abi := obj.ABI(0); abi < obj.ABICount; abi++ { - v := sym.ABIToVersion(abi) - if v == -1 { - continue - } - if rs := ctxt.Syms.ROLookup(r.Sym.Name, v); rs != nil && rs.Type != sym.Sxxx && rs.Type != sym.SXREF { - haveABI = abi - } - } - } - - // Give a special error message for main symbol (see #24809). - if r.Sym.Name == "main.main" { - Errorf(s, "function main is undeclared in the main package") - } else if haveABI != ^obj.ABI(0) { - Errorf(s, "relocation target %s not defined for %s (but is defined for %s)", r.Sym.Name, reqABI, haveABI) - } else { - Errorf(s, "relocation target %s not defined", r.Sym.Name) - } - } -} - // The smallest possible offset from the hardware stack pointer to a local // variable on the stack. Architectures that use a link register save its value // on the stack in the function prologue and so always have a pointer between |