diff options
| -rw-r--r-- | src/cmd/internal/goobj2/objfile.go | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/cmd/internal/goobj2/objfile.go b/src/cmd/internal/goobj2/objfile.go index 7f728e4f76..aba9b9856e 100644 --- a/src/cmd/internal/goobj2/objfile.go +++ b/src/cmd/internal/goobj2/objfile.go @@ -379,6 +379,11 @@ func (a *Aux) Write(w *Writer) { w.Bytes(a[:]) } // for testing func (a *Aux) fromBytes(b []byte) { copy(a[:], b) } +// Used to construct an artifically large array type when reading an +// item from the object file relocs section or aux sym section (needs +// to work on 32-bit as well as 64-bit). See issue 41621. +const huge = (1<<31 - 1) / RelocSize + // Referenced symbol name. // // Serialized format: @@ -652,7 +657,7 @@ func (r *Reader) Reloc(i int, j int) *Reloc { func (r *Reader) Relocs(i int) []Reloc { off := r.RelocOff(i, 0) n := r.NReloc(i) - return (*[1 << 20]Reloc)(unsafe.Pointer(&r.b[off]))[:n:n] + return (*[huge]Reloc)(unsafe.Pointer(&r.b[off]))[:n:n] } // NAux returns the number of aux symbols of the i-th symbol. @@ -678,7 +683,7 @@ func (r *Reader) Aux(i int, j int) *Aux { func (r *Reader) Auxs(i int) []Aux { off := r.AuxOff(i, 0) n := r.NAux(i) - return (*[1 << 20]Aux)(unsafe.Pointer(&r.b[off]))[:n:n] + return (*[huge]Aux)(unsafe.Pointer(&r.b[off]))[:n:n] } // DataOff returns the offset of the i-th symbol's data. |