------- Comment #38 from howarth at nitro dot med dot uc dot edu 2009-12-19 00:35 ------- I've confirmed that both the WalkerTest failures and the gcj compiler crashes on java code are eliminated on darwin10 if I duplicate the code for _Unwind_FindEnclosingFunction() as _darwin10_Unwind_FindEnclosingFunction() and export that via the versioned libgcc_ext. So the entire problem is that darwin10's _Unwind_FindEnclosingFunction() is non-functional (and just calls abort()). Fortunately, since FSF gcc builds on darwin10 without compact unwind we still have access to a functional _Unwind_Find_FDE(). We just need to find some approach short of adding a new symbol to libgcc that will provide an alternate means of accessing the code for _Unwind_FindEnclosingFunction() on darwin.
-- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41991