X-Recipient: archive-cygwin AT delorie DOT com X-Spam-Check-By: sourceware.org From: "Dave Korn" To: References: <20070905080321 DOT 29259AB0 DOT matsuoka AT mol DOT nagoya-u DOT ac DOT jp> <46DE0C86 DOT 61C0ABB0 AT dessent DOT net> <46DFFE96 DOT 70907 AT ajrh DOT net> <46E006AB DOT F600C446 AT dessent DOT net> <46E0D4F7 DOT 1050006 AT ajrh DOT net> <46E146D0 DOT 9C1F7289 AT dessent DOT net> <01e501c7f154$2ff08ff0$2e08a8c0 AT CAM DOT ARTIMI DOT COM> <46E155A7 DOT 8E3B6034 AT dessent DOT net> <01f401c7f159$3a2b7b60$2e08a8c0 AT CAM DOT ARTIMI DOT COM> <46E15DE8 DOT 77209B90 AT dessent DOT net> Subject: RE: Slowness problem due to sjlj-exceptions for Octave Date: Fri, 7 Sep 2007 15:28:36 +0100 Message-ID: <020201c7f15b$60840050$2e08a8c0@CAM.ARTIMI.COM> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Mailer: Microsoft Office Outlook 11 In-Reply-To: <46E15DE8.77209B90@dessent.net> Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com On 07 September 2007 15:19, Brian Dessent wrote: > Dave Korn wrote: > >> Right, so IOW, the SEH support does all the required unwinding for us. >> Ultimately I guess that's the only solution that's going to be both >> complete and correct. (The only other thing I could even imagine would be >> some kind of hideous .pdb abuse using the M$ official symbol files to >> extract the frame and FPO information for frames in API functions...) > > Well, assuming that none of these foreign frames do any kind of > -fomit-frame-pointer style optimizations, IIRC every MS win32 API dll (user32, kernel32, gdi32 etc.....) does absolutely masses of FPO, so we're probably no-go there. cheers, DaveK -- Can't think of a witty .sigline today.... -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/