RFC: make linking BC-compiled classes more lazy - part one

[Robert Schuster]

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Hi,
this patch fixes half of the problems I mentioned in bug 24616[0]. For further
details about the approach taken see the bug report. Another patch which fixes
the remaining bits is already prepared.

This patch makes a lot more sense with my previous fixes for the verifier[1]. :)

2005-11-23  Robert Schuster  <robertschuster@fsfe.org>

        * link.cc:
        (_Jv_Linker::find_field_helper): Added checks.
        (_Jv_Linker::find_field): Use exception swallowing class resolution
        and added early return.
        (_Jv_ThrowNoClassDefFoundErrorTrampoline): New function.
        (_Jv_Linker::link_symbol_table):  Use exception swallowing class
        resolution, added ffi_closure installation routine.
        (_Jv_Linker::ensure_class_linked): Added string check which does
        not trigger class resolution.
        * java/lang/natClassLoader.cc:
        (_Jv_FindClassNoException): New method.
        * java/lang/Class.h:
        (_Jv_FindClassNoException): New method declaration.
        * jvm.h:
        (_Jv_FindClassNoException): New method declaration.
        (_Jv_FindClassFromSignatureNoException): New method declaration.
        * prims.cc:
        (_Jv_FindClassFromSignatureNoException): New method.

cya
Robert

[0] - http://gcc.gnu.org/bugzilla/show_bug.cgi?id=24616
[1] - http://gcc.gnu.org/ml/java-patches/2005-q4/msg00213.html
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