search for: _c_specific_handler

...How to translate this? - The filter expression is basically a nested function which is called with the exception code and exception information. - The body of the __except statement is the landing pad. It is always executed if the filter expression returns 1. - The exception machinery first asks _C_specific_handler, which calls the filter expression and possible jump to the body of the __except statement. Everything looks fine except that I need a reference to the filter expression in order to generate the EH tables. Is there a way to associate the filter expression with the landingpad instruction? I am...

On Sat, May 16, 2015 at 7:29 AM, Steve Cheng <steve.ckp at gmail.com> wrote: > On 2015-05-15 18:37:58 -0400, Reid Kleckner said: > > After a long tale of sorrow and woe, my colleagues and I stand here >> before you defeated. The Itanium EH representation is not amenable to >> implementing MSVC-compatible exceptions. We need a new representation that >> preserves

...> - The filter expression is basically a nested function which is called with the > exception code and exception information. > - The body of the __except statement is the landing pad. It is always executed > if the filter expression returns 1. > - The exception machinery first asks _C_specific_handler, which calls the filter > expression and possible jump to the body of the __except statement. > > Everything looks fine except that I need a reference to the filter expression in > order to generate the EH tables. > Is there a way to associate the filter expression with the landingpa...

...code already? > We can, but frankly it's unreliable. The new representation should help make the job easier. > And that the hiccup you are encountering is because __CxxFrameHandler3 > requires unwind tables with properly-ordered state transitions? The > compiler SEH personality (_C_specific_handler) doesn't have that, right? If > you could manage __try, __finally already, doesn't that provide the > solution? > Right, __CxxFrameHandler3 is a lot more constraining than __C_specific_handler. The SEH personality doesn't let you rethrow exceptions, so once you catch the excep...

Can you clarify what you mean by "real SEH handling"? My company has me looking at this in the hopes that I can make LLVM capable of building windows drivers. If you mean "visual c++ style SEH", I'm fairly sure that isn't necessary for my purposes, but it would be nice. If you mean "something that works at all," then your concern about generalizing LLVM

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