[Mono-dev] [PATCH] Implement internal call builders
kornelpal at gmail.com
Sat Jun 21 07:19:39 EDT 2008
There are a lot of internal calls that could be implemented entirely
using managed code.
Usually the problem is that they require information about internal data
structures of the runtime. Sharing internal structures between native
and managed code is problematic because two declarations has to be kept
Other problem may be that the required opcodes cannot be expressed in C#.
The current solution is to use mini_get_inst_for_method that started to
get quite big and because it always gets inlined only a small amount of
code is accepted to this function.
My proposed solution is to introduce internal call builders that
generate managed code themselves of type MONO_WRAPPER_MANAGED_TO_MANAGED.
My patch contains three reference internal call builder implementations:
- RuntimeHelpers.OffsetToStringData: that is currently implemented in
- Marshal.UnsafeAddrOfPinnedArrayElement: that is currently implemented
using native code
- String..ctor: that is currenly implemented as a hack in
If internal calls of type MONO_WRAPPER_MANAGED_TO_MANAGED were permitted
to be inlined there could be more performance gain from this new feature.
If you like this new feature please approve the code. Otherwise please
help me to improve it.
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