model {
    binaries {
        all {
            // Define toolchain-specific compiler and linker options
            if (toolChain in Gcc) {
                cCompiler.args "-O2"
                linker.args "-Xlinker", "-S"
            }
            if (toolChain in VisualCpp) {
                cCompiler.args "/Zi"
                linker.args "/DEBUG"
            }
        }
    }
}
// end::compiler-args[]

    /**
     * Adds a node to the graph, linked from this node. The given registration is used to initialize the node when required.
     *
     * The path returned by {@link ModelRegistration#getPath()} is used to determine the name of the link.
     */
    void addLink(ModelRegistration registration);

    /**
     * Removes a node linked from this node from the graph.
     */
    void removeLink(String name);

// (1) scheme is enough to express any kind of operand combination.
//
// Jump instructions use the To.Val field to point to the target *Prog,
// which must be in the same linked list as the jump instruction.
//
// The Progs for a given function are arranged in a list linked through the Link field.
//
// Each Prog is charged to a specific source line in the debug information,
// specified by Pos.Line().

		c.FPReg = framepointerRegLOONG64
		c.LinkReg = linkRegLOONG64
		c.hasGReg = true
	case "s390x":
		c.PtrSize = 8
		c.RegSize = 8
		c.lowerBlock = rewriteBlockS390X
		c.lowerValue = rewriteValueS390X
		c.registers = registersS390X[:]
		c.gpRegMask = gpRegMaskS390X
		c.fpRegMask = fpRegMaskS390X
		c.FPReg = framepointerRegS390X
		c.LinkReg = linkRegS390X
		c.hasGReg = true
		c.noDuffDevice = true

	if GccgoName == "" {
		GccgoName = "gccgo"
	}
	GccgoBin, gccgoErr = cfg.LookPath(GccgoName)
}

func (gccgoToolchain) compiler() string {
	checkGccgoBin()
	return GccgoBin
}

func (gccgoToolchain) linker() string {
	checkGccgoBin()
	return GccgoBin
}

func (gccgoToolchain) ar() []string {
	return envList("AR", "ar")
}

func checkGccgoBin() {
	if gccgoErr == nil {
		return
	}

        content.assertDoesNotExist()
    }

    @Requires(UnitTestPreconditions.Symlinks)
    def "recreates target directory when symlink is found, leaving linked content untouched"() {
        def linked = tmpDir.createDir("linked")
        def content = linked.createFile("content.txt")
        def target = tmpDir.file("target").tap { Files.createSymbolicLink(it.toPath(), linked.toPath()) }

        when:

            // Define toolchain-specific compiler and linker options
            if (toolChain in Gcc) {
                cppCompiler.args "-O2", "-fno-access-control"
                linker.args "-Xlinker", "-S"
            }
            if (toolChain in VisualCpp) {
                cppCompiler.args "/Zi"
                linker.args "/DEBUG"
            }
        }
    }
}
// end::all-binaries[]

	_, err = cmd.CombinedOutput()
	if err == nil {
		fmt.Println("-X linker flag should not accept keys without values")
		os.Exit(1)
	}

	// Issue 9621
	cmd = exec.Command("go", "run", "-ldflags=-X main.b=false -X main.x=42", "linkx.go")
	outx, err := cmd.CombinedOutput()
	if err == nil {
		fmt.Println("-X linker flag should not overwrite non-strings")
		os.Exit(1)
	}
	outstr := string(outx)

## Compiler {#compiler}

## Assembler {#assembler}

    BuildOperationExecutor buildOperationExecutor = Mock(BuildOperationExecutor)
    BuildOperationQueue queue = Mock(BuildOperationQueue)
    WorkerLeaseService workerLeaseService = new TestWorkerLeaseService()

    SwiftLinker linker = new SwiftLinker(buildOperationExecutor, commandLineTool, invocationContext, workerLeaseService)

    def "ignores install name for all major operating system"() {
        given: