import org.gradle.api.model.ObjectFactory;
import org.gradle.api.provider.Property;
import org.gradle.api.tasks.Input;
import org.gradle.api.tasks.OutputFile;
import org.gradle.api.tasks.TaskAction;
import org.gradle.nativeplatform.Linkage;
import org.gradle.swiftpm.Package;
import org.gradle.swiftpm.internal.AbstractProduct;
import org.gradle.swiftpm.internal.BranchDependency;
import org.gradle.swiftpm.internal.DefaultLibraryProduct;

// Saves C callee-saved registers and calls cgocallback with three arguments.
// fn is the PC of a func(a unsafe.Pointer) function.
TEXT crosscall2(SB),NOSPLIT|NOFRAME,$0
	// Start with standard C stack frame layout and linkage.

	// Save R6-R15 in the register save area of the calling function.
	STMG	R6, R15, 48(R15)

	// Allocate 96 bytes on the stack.
	MOVD	$-96(R15), R15

	// Save F8-F15 in our stack frame.
	FMOVD	F8, 32(R15)

	but it's standard and should be very efficient.

	GCC 7 has an unfortunate habit of optimizing out strncpy calls (see
	https://golang.org/issue/21196), so the arguments here need to be global
	variables with external linkage in order to ensure that the call traps all the
	way down into libc.
	*/
	strncpy(&x_cgo_yield_strncpy_dst, &x_cgo_yield_strncpy_src,
	        x_cgo_yield_strncpy_n);
}

void(* const _cgo_yield)() = &x_cgo_yield;

        given:
        buildFile << """
apply plugin: 'c'

model {
    components {
        main(NativeExecutableSpec) {
            binaries.all {
                lib library: 'hello', linkage: 'api'

                def librarySearchPath = 'build/libs/hello/static'
                def libraryName = 'hello'
                if (toolChain in VisualCpp) {

                            }
                        }
                    }
                    hello(NativeLibrarySpec) {
                        binaries.all {
                            lib library: 'greetings' , linkage: 'static'
                        }
                    }
                    main(NativeExecutableSpec) {
                        binaries.all {
                            lib library: 'hello'
                        }

                        testing \$.components.hello
                    }
                }
                binaries {
                    withType(CUnitTestSuiteBinarySpec) {
                        lib library: "cunit", linkage: "static"
                    }
                }
            }
        """.stripIndent()
    }

    private useConventionalSourceLocations() {
        app.library.writeSources(file("src/hello"))

// The value of R2 is saved on the new stack frame, and not
// the caller's frame due to issue #43228.
TEXT crosscall2(SB),NOSPLIT|NOFRAME,$0
	// Start with standard C stack frame layout and linkage, allocate
	// 32 bytes of argument space, save callee-save regs, and set R0 to $0.
	STACK_AND_SAVE_HOST_TO_GO_ABI(32)
	// The above will not preserve R2 (TOC). Save it in case Go is

 * Called from standard ppc64 C ABI, where r2, r14-r31, f14-f31 are
 * callee-save, so they must be saved explicitly.
 */
.globl crosscall_ppc64
crosscall_ppc64:
	// Start with standard C stack frame layout and linkage
	mflr	%r0
	std	%r0, 16(%r1)	// Save LR in caller's frame
	mfcr	%r0
	std	%r0, 8(%r1)	// Save CR in caller's frame
	stdu	%r1, -FRAME_SIZE(%r1)
	std	%r2, 24(%r1)

	FOR_EACH_GPR std
	FOR_EACH_FPR stfd

    private void addGoogleTestDep() {
        buildFile << """
            model {
                binaries {
                    withType(GoogleTestTestSuiteBinarySpec) {
                        lib library: "googleTest", linkage: "static"
                        if (targetPlatform.operatingSystem.linux) {
                            cppCompiler.args '-pthread'
                            linker.args '-pthread'
                        }

        buildFile << """
            model {
                components {
                    main(NativeExecutableSpec) {
                        sources.${app.sourceType}.lib library: "mainLib", linkage: '${libType.toLowerCase()}'
                    }
                    mainLib(NativeLibrarySpec) {
                        binaries.withType(${oppositeLibType(libType).capitalize()}LibraryBinarySpec) {