The following C test code calls the current Mono 4.2.1-91 framework.
It builds and runs fine on Xcode 6.4 on 10.10.
It fails if I build and run it on OS X 10.11 using Xcode 7.1 - EXC_BAD_ACCESS
in mono_jit_runtime_invoke() when calling AssemblyName:GetName()
However the built binary runs fine outside of the Xcode environment.
This obviously makes life difficult.
Any ideas or suggestions as to why this is occurring?
Is there anyway to mitigate it?
Jonathan
// Link against both Mono and CoreFoundation.
// Header search path set to /Library/Frameworks/Mono.framework/Headers/Mono-2.0
// Architecture i386.
#include <stdio.h>
#import <mono/jit/jit.h>
#import <mono/metadata/metadata.h>
#import <mono/metadata/debug-helpers.h>
MonoObject *invokeName(MonoObject *object, char *name);
int main(int argc, const char * argv[]) {
// init
MonoDomain *domain = mono_jit_init_version("Dubrovnik", "v4.0.30319");
MonoAssembly *assembly = mono_domain_assembly_open(domain, "mscorlib");
// returns System.Reflection.Assembly
MonoReflectionAssembly *assemblyObject = mono_assembly_get_object(domain,
assembly);
// returns System.Reflection.AssemblyName
MonoObject *assemblyNameObject = invokeName((MonoObject *)assemblyObject,
":GetName()");
// returns System.Version
MonoObject *versionObject = invokeName(assemblyNameObject,
":get_Version()");
// Returns System.String
MonoObject *stringObject = invokeName(versionObject, ":ToString()");
printf("Version : %s\n", mono_string_to_utf8((MonoString *)stringObject));
return 0;
}
MonoObject *invokeName(MonoObject *object, char *name)
{
MonoClass *klass = mono_object_get_class(object);
MonoMethodDesc *methodDesc = mono_method_desc_new(name, 1);
MonoMethod *meth = NULL;
while (klass != NULL) {
meth = mono_method_desc_search_in_class(methodDesc, klass);
if(meth != NULL) {
meth = mono_object_get_virtual_method(object, meth);
break;
}
klass = mono_class_get_parent(klass);
}
MonoObject *monoException = NULL;
MonoObject *resultObject = mono_runtime_invoke(meth, object, NULL,
&monoException);
klass = mono_object_get_class(resultObject);
printf("invokeName returned : %s\n", mono_class_get_name(klass));
return resultObject;
}
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