IEnumerable <NativeReferenceMetadata> ReadManifest(string manifestPath)
{
XmlDocument document = new XmlDocument();
document.LoadWithoutNetworkAccess(manifestPath);
foreach (XmlNode referenceNode in document.GetElementsByTagName("NativeReference"))
{
NativeReferenceMetadata metadata = new NativeReferenceMetadata();
metadata.LibraryName = Path.Combine(Path.GetDirectoryName(manifestPath), referenceNode.Attributes ["Name"].Value);
var attributes = new Dictionary <string, string> ();
foreach (XmlNode attribute in referenceNode.ChildNodes)
{
attributes [attribute.Name] = attribute.InnerText;
}
metadata.ForceLoad = ParseAttributeWithDefault(attributes ["ForceLoad"], false);
metadata.Frameworks = attributes ["Frameworks"];
metadata.WeakFrameworks = attributes ["WeakFrameworks"];
metadata.LinkerFlags = attributes ["LinkerFlags"];
metadata.NeedsGccExceptionHandling = ParseAttributeWithDefault(attributes ["NeedsGccExceptionHandling"], false);
metadata.IsCxx = ParseAttributeWithDefault(attributes ["IsCxx"], false);
metadata.SmartLink = ParseAttributeWithDefault(attributes ["SmartLink"], true);
// TODO - The project attributes do not contain these bits, is that OK?
//metadata.LinkTarget = (LinkTarget) Enum.Parse (typeof (LinkTarget), attributes ["LinkTarget"]);
//metadata.Dlsym = (DlsymOption)Enum.Parse (typeof (DlsymOption), attributes ["Dlsym"]);
yield return(metadata);
}
}
string ExtractNativeLibrary(AssemblyDefinition assembly, NativeReferenceMetadata metadata)
{
string path = Path.Combine(App.Cache.Location, metadata.LibraryName);
if (!Application.IsUptodate(FullPath, path))
{
Application.ExtractResource(assembly.MainModule, metadata.LibraryName, path, false);
Driver.Log(3, "Extracted third-party binding '{0}' from '{1}' to '{2}'", metadata.LibraryName, FullPath, path);
LogNativeReference(metadata);
}
else
{
Driver.Log(3, "Target '{0}' is up-to-date.", path);
}
if (!File.Exists(path))
{
ErrorHelper.Warning(1302, "Could not extract the native library '{0}' from '{1}'. " +
"Please ensure the native library was properly embedded in the managed assembly " +
"(if the assembly was built using a binding project, the native library must be included in the project, and its Build Action must be 'ObjcBindingNativeLibrary').",
metadata.LibraryName, path);
}
return(path);
}
static void LogNativeReference(NativeReferenceMetadata metadata)
{
Driver.Log(3, " LibraryName: {0}", metadata.LibraryName);
Driver.Log(3, " From: {0}", metadata.Attribute != null ? "LinkWith" : "Binding Manifest");
Driver.Log(3, " ForceLoad: {0}", metadata.ForceLoad);
Driver.Log(3, " Frameworks: {0}", metadata.Frameworks);
Driver.Log(3, " IsCxx: {0}", metadata.IsCxx);
Driver.Log(3, " LinkerFlags: {0}", metadata.LinkerFlags);
Driver.Log(3, " LinkTarget: {0}", metadata.LinkTarget);
Driver.Log(3, " NeedsGccExceptionHandling: {0}", metadata.NeedsGccExceptionHandling);
Driver.Log(3, " SmartLink: {0}", metadata.SmartLink);
Driver.Log(3, " WeakFrameworks: {0}", metadata.WeakFrameworks);
}
void ProcessNativeReferenceOptions(NativeReferenceMetadata metadata)
{
// We can't add -dead_strip if there are any LinkWith attributes where smart linking is disabled.
if (!metadata.SmartLink)
{
App.DeadStrip = false;
}
// Don't add -force_load if the binding's SmartLink value is set and the static registrar is being used.
if (metadata.ForceLoad && !(metadata.SmartLink && App.Registrar == RegistrarMode.Static))
{
ForceLoad = true;
}
if (!string.IsNullOrEmpty(metadata.LinkerFlags))
{
if (LinkerFlags == null)
{
LinkerFlags = new List <string> ();
}
if (!StringUtils.TryParseArguments(metadata.LinkerFlags, out string [] args, out var ex))
string ExtractFramework(AssemblyDefinition assembly, NativeReferenceMetadata metadata)
{
string path = Path.Combine(App.Cache.Location, metadata.LibraryName);
var zipPath = path + ".zip";
if (!Application.IsUptodate(FullPath, zipPath))
{
Application.ExtractResource(assembly.MainModule, metadata.LibraryName, zipPath, false);
Driver.Log(3, "Extracted third-party framework '{0}' from '{1}' to '{2}'", metadata.LibraryName, FullPath, zipPath);
LogNativeReference(metadata);
}
else
{
Driver.Log(3, "Target '{0}' is up-to-date.", path);
}
if (!File.Exists(zipPath))
{
ErrorHelper.Warning(1302, "Could not extract the native framework '{0}' from '{1}'. " +
"Please ensure the native framework was properly embedded in the managed assembly " +
"(if the assembly was built using a binding project, the native framework must be included in the project, and its Build Action must be 'ObjcBindingNativeFramework').",
metadata.LibraryName, zipPath);
}
else
{
if (!Directory.Exists(path))
{
Directory.CreateDirectory(path);
}
if (Driver.RunCommand("/usr/bin/unzip", string.Format("-u -o -d {0} {1}", StringUtils.Quote(path), StringUtils.Quote(zipPath))) != 0)
{
throw ErrorHelper.CreateError(1303, "Could not decompress the native framework '{0}' from '{1}'. Please review the build log for more information from the native 'unzip' command.", metadata.LibraryName, zipPath);
}
}
return(path);
}
void ProcessLinkWithAttributes(AssemblyDefinition assembly)
{
//
// Tasks:
// * Remove LinkWith attribute: this is done in the linker.
// * Remove embedded resources related to LinkWith attribute from assembly: this is done at a later stage,
// here we just compile a list of resources to remove.
// * Extract embedded resources related to LinkWith attribute to a file
// * Modify the linker flags used to build/link the dylib (if fastdev) or the main binary (if !fastdev)
//
for (int i = 0; i < assembly.CustomAttributes.Count; i++)
{
CustomAttribute attr = assembly.CustomAttributes [i];
if (attr.Constructor == null)
{
continue;
}
TypeReference type = attr.Constructor.DeclaringType;
if (!type.IsPlatformType("ObjCRuntime", "LinkWithAttribute"))
{
continue;
}
// Let the linker remove it the attribute from the assembly
HasLinkWithAttributes = true;
LinkWithAttribute linkWith = GetLinkWithAttribute(attr);
NativeReferenceMetadata metadata = new NativeReferenceMetadata(linkWith);
// If we've already processed this native library, skip it
if (LinkWith.Any(x => Path.GetFileName(x) == metadata.LibraryName) || Frameworks.Any(x => Path.GetFileName(x) == metadata.LibraryName))
{
continue;
}
// Remove the resource from the assembly at a later stage.
if (!string.IsNullOrEmpty(metadata.LibraryName))
{
AddResourceToBeRemoved(metadata.LibraryName);
}
ProcessNativeReferenceOptions(metadata);
if (!string.IsNullOrEmpty(linkWith.LibraryName))
{
if (linkWith.LibraryName.EndsWith(".framework", StringComparison.OrdinalIgnoreCase))
{
AssertiOSVersionSupportsUserFrameworks(linkWith.LibraryName);
Frameworks.Add(ExtractFramework(assembly, metadata));
}
else
{
LinkWith.Add(ExtractNativeLibrary(assembly, metadata));
}
}
}
}
void ProcessLinkWithAttributes(AssemblyDefinition assembly)
{
//
// Tasks:
// * Remove LinkWith attribute: this is done in the linker.
// * Remove embedded resources related to LinkWith attribute from assembly: this is done at a later stage,
// here we just compile a list of resources to remove.
// * Extract embedded resources related to LinkWith attribute to a file
// * Modify the linker flags used to build/link the dylib (if fastdev) or the main binary (if !fastdev)
//
for (int i = 0; i < assembly.CustomAttributes.Count; i++)
{
CustomAttribute attr = assembly.CustomAttributes [i];
if (attr.Constructor == null)
{
continue;
}
TypeReference type = attr.Constructor.DeclaringType;
if (!type.Is("ObjCRuntime", "LinkWithAttribute"))
{
continue;
}
// Let the linker remove it the attribute from the assembly
HasLinkWithAttributes = true;
LinkWithAttribute linkWith = GetLinkWithAttribute(attr);
NativeReferenceMetadata metadata = new NativeReferenceMetadata(linkWith);
// If we've already processed this native library, skip it
if (LinkWith.Any(x => Path.GetFileName(x) == metadata.LibraryName) || Frameworks.Any(x => Path.GetFileName(x) == metadata.LibraryName))
{
continue;
}
// Remove the resource from the assembly at a later stage.
if (!string.IsNullOrEmpty(metadata.LibraryName))
{
AddResourceToBeRemoved(metadata.LibraryName);
}
ProcessNativeReferenceOptions(metadata);
if (!string.IsNullOrEmpty(linkWith.LibraryName))
{
switch (Path.GetExtension(linkWith.LibraryName).ToLowerInvariant())
{
case ".framework":
AssertiOSVersionSupportsUserFrameworks(linkWith.LibraryName);
Frameworks.Add(ExtractFramework(assembly, metadata));
break;
case ".xcframework":
// this is resolved, at msbuild time, into a framework
// but we must ignore it here (can't be the `default` case)
break;
default:
LinkWith.Add(ExtractNativeLibrary(assembly, metadata));
break;
}
}
}
}
void ProcessNativeReferenceOptions(NativeReferenceMetadata metadata)
{
// We can't add -dead_strip if there are any LinkWith attributes where smart linking is disabled.
if (!metadata.SmartLink)
{
App.DeadStrip = false;
}
// Don't add -force_load if the binding's SmartLink value is set and the static registrar is being used.
if (metadata.ForceLoad && !(metadata.SmartLink && App.Registrar == RegistrarMode.Static))
{
ForceLoad = true;
}
if (!string.IsNullOrEmpty(metadata.LinkerFlags))
{
if (LinkerFlags == null)
{
LinkerFlags = new List <string> ();
}
LinkerFlags.Add(metadata.LinkerFlags);
}
if (!string.IsNullOrEmpty(metadata.Frameworks))
{
foreach (var f in metadata.Frameworks.Split(new char [] { ' ' }))
{
if (Frameworks == null)
{
Frameworks = new HashSet <string> ();
}
Frameworks.Add(f);
}
}
if (!string.IsNullOrEmpty(metadata.WeakFrameworks))
{
foreach (var f in metadata.WeakFrameworks.Split(new char [] { ' ' }))
{
if (WeakFrameworks == null)
{
WeakFrameworks = new HashSet <string> ();
}
WeakFrameworks.Add(f);
}
}
if (metadata.NeedsGccExceptionHandling)
{
NeedsGccExceptionHandling = true;
}
if (metadata.IsCxx)
{
EnableCxx = true;
}
#if MONOTOUCH
if (metadata.Dlsym != DlsymOption.Default)
{
App.SetDlsymOption(FullPath, metadata.Dlsym == DlsymOption.Required);
}
#endif
}
