DwFixups           *DwarfFixupTable
	Imports            []goobj.ImportedPkg
	DiagFunc           func(string, ...interface{})
	DiagFlush          func()
	DebugInfo          func(fn *LSym, info *LSym, curfn Func) ([]dwarf.Scope, dwarf.InlCalls)
	GenAbstractFunc    func(fn *LSym)
	Errors             int

	InParallel    bool // parallel backend phase in effect

	// R_DWARFSECREF resolves to the offset of the symbol from its section.
	// Target of relocation must be size 4 (in current implementation).
	R_DWARFSECREF

	// R_DWARFFILEREF resolves to an index into the DWARF .debug_line
	// file table for the specified file symbol. Must be applied to an
	// attribute of form DW_FORM_data4.
	R_DWARFFILEREF

	// Platform dependent relocations. Architectures with fixed width instructions

	switch sz {
	case 2:
		return uint64(arch.ByteOrder.Uint16(p))
	case 4:
		return uint64(arch.ByteOrder.Uint32(p))
	case 8:
		return arch.ByteOrder.Uint64(p)
	default:
		Exitf("dwarf: decode inuxi %d", sz)
		panic("unreachable")
	}
}

func commonsize(arch *sys.Arch) int      { return abi.CommonSize(arch.PtrSize) }      // runtime._type

		ctxt.Imports[i].Write(w.Writer)
	}

	// Package references
	h.Offsets[goobj.BlkPkgIdx] = w.Offset()
	for _, pkg := range w.pkglist {
		w.StringRef(pkg)
	}

	// File table (for DWARF and pcln generation).
	h.Offsets[goobj.BlkFile] = w.Offset()
	for _, f := range ctxt.PosTable.FileTable() {
		w.StringRef(filepath.ToSlash(f))
	}

	// Symbol definitions
	h.Offsets[goobj.BlkSymdef] = w.Offset()

			t.Helper()
			t.Fatalf("%s: %v\n%s", strings.Join(cmd.Args, " "), err, cmd.Stderr)
		}
	}

	return string(bytes.TrimSpace(out))
}

func TestDWARFSections(t *testing.T) {
	// test that DWARF sections are emitted for plugins and programs importing "plugin"
	globalSkip(t)
	goCmd(t, "run", "./checkdwarf/main.go", "plugin2.so", "plugin2.UnexportedNameReuse")

		// set the R_WEAK bit, leave rest of reloc type intact
		fn.LSym.R[i].Type |= objabi.R_WEAK
	}
}

// StackOffset returns the stack location of a LocalSlot relative to the
// stack pointer, suitable for use in a DWARF location entry. This has nothing
// to do with its offset in the user variable.
func StackOffset(slot ssa.LocalSlot) int32 {
	n := slot.N
	var off int64
	switch n.Class {
	case ir.PPARAM, ir.PPARAMOUT:

			break
		}
		size2 += encoderune(b[size2:], r)
	}
	return s[:size2]
}

type stringStruct struct {
	str unsafe.Pointer
	len int
}

// Variant with *byte pointer type for DWARF debugging.
type stringStructDWARF struct {
	str *byte
	len int
}

func stringStructOf(sp *string) *stringStruct {
	return (*stringStruct)(unsafe.Pointer(sp))
}

-disable-free -disable-llvm-verifier -main-file-name - -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -target-linker-version 2.24 -v -dwarf-column-info -resource-dir /usr/lib/llvm-3.6/bin/../lib/clang/3.6.0 -internal-isystem /usr/local/include -internal-isystem /usr/lib/llvm-3.6/bin/../lib/clang/3.6.0/include -internal-externc-isystem /usr/bin/../lib/gcc/x86_64-linux-gnu/4.8/include -...

	# suffix array
	encoding/binary, regexp
	< index/suffixarray;

	# executable parsing
	FMT, encoding/binary, compress/zlib, internal/saferio, internal/zstd, sort
	< runtime/debug
	< debug/dwarf
	< debug/elf, debug/gosym, debug/macho, debug/pe, debug/plan9obj, internal/xcoff
	< debug/buildinfo
	< DEBUG;

	# go parser and friends.
	FMT, sort
	< internal/gover
	< go/version
	< go/token

						if d.ldr.AttrReachable(rs) {
							d.ldr.SetAttrReachable(rs, false)
							d.mark(rs, symIdx)
						}
					}
				}
				i += 2
				continue
			case objabi.R_USETYPE:
				// type symbol used for DWARF. we need to load the symbol but it may not
				// be otherwise reachable in the program.
				// do nothing for now as we still load all type symbols.
				continue
			case objabi.R_USEIFACE: