IEnumerable <Config> GetLinkerConfigs()
{
var abis = new Dictionary <string, InputFiles> (StringComparer.Ordinal);
ITaskItem[] dsos = ApplicationSharedLibraries;
foreach (ITaskItem item in dsos)
{
string abi = item.GetMetadata("abi");
abis [abi] = GatherFilesForABI(item.ItemSpec, abi, ObjectFiles);
}
foreach (var kvp in abis)
{
string abi = kvp.Key;
InputFiles inputs = kvp.Value;
AndroidTargetArch arch;
var linkerArgs = new List <string> {
"--unresolved-symbols=ignore-in-shared-libs",
"--export-dynamic",
"-soname", "libxamarin-app.so",
"-z", "relro",
"-z", "noexecstack",
"--enable-new-dtags",
"--eh-frame-hdr",
"-shared",
"--build-id",
"--warn-shared-textrel",
"--fatal-warnings",
"-o", QuoteFileName(inputs.OutputSharedLibrary),
};
string elf_arch;
switch (abi)
{
case "armeabi-v7a":
arch = AndroidTargetArch.Arm;
linkerArgs.Add("-X");
elf_arch = "armelf_linux_eabi";
break;
case "arm64":
case "arm64-v8a":
case "aarch64":
arch = AndroidTargetArch.Arm64;
linkerArgs.Add("--fix-cortex-a53-843419");
elf_arch = "aarch64linux";
break;
case "x86":
arch = AndroidTargetArch.X86;
elf_arch = "elf_i386";
break;
case "x86_64":
arch = AndroidTargetArch.X86_64;
elf_arch = "elf_x86_64";
break;
default:
throw new NotSupportedException($"Unsupported Android target architecture ABI: {abi}");
}
linkerArgs.Add("-m");
linkerArgs.Add(elf_arch);
foreach (string file in inputs.ObjectFiles)
{
linkerArgs.Add(QuoteFileName(file));
}
string ld = MonoAndroidHelper.GetExecutablePath(AndroidBinUtilsDirectory, $"{NdkUtil.GetNdkToolchainPrefix (arch, false)}ld");
yield return(new Config {
LinkerPath = Path.Combine(AndroidBinUtilsDirectory, ld),
LinkerOptions = String.Join(" ", linkerArgs),
OutputSharedLibrary = inputs.OutputSharedLibrary,
});
}
}
