Invoke mono function using assembly

[JohnFK]

How can I invoke a static mono function (no parameters) with using only assembly? I've tried the following but it crashes the game (the function is already jitted btw).

Code: Select all

alloc(bla,1024)

bla:
sub rsp,28
mov r11,IngameDebugMenu:Show
call r11
add rsp,28
ret

createthread(bla)

[Bloodybone]

Code: Select all

alloc(bla,1024)

bla:
sub rsp,28
call mono_get_root_domain
mov rcx,rax
call mono_thread_attach
mov r11,IngameDebugMenu:Show
call r11
call mono_thread_get
mov rcx,rax
call mono_thread_detach
add rsp,28
ret

createthread(bla)

[Metanoia]

Code: Select all

alloc(bla,1024)

bla:
sub rsp,28
call mono_get_root_domain
mov rcx,rax
call mono_thread_attach
mov r11,IngameDebugMenu:Show
call r11
call mono_thread_get
mov rcx,rax
call mono_thread_detach
add rsp,28
ret

createthread(bla)

Why call mono_thread_Get just do this

Code: Select all

sub rsp,28
call mono_get_root_domain
mov rcx,rax
call mono_thread_attach
mov rsi,rax

...

mov rcx,rsi
call mono_thread_detach
add rsp,28
ret

or

For IL2CPP games use this

Code: Select all

sub rsp,28
call il2cpp_domain_get
mov rcx,rax
call il2cpp_thread_attach
mov rsi,rax

...

mov rcx,rsi
call il2cpp_thread_detach 
add rsp,28
ret

[JohnFK]

Thanks, much appreciated