| To: | kdb@xxxxxxxxxxx |
|---|---|
| Subject: | how KDB simulates INT n instruction? |
| From: | Yuan Lu <lkajmpq@xxxxxxxxx> |
| Date: | Fri, 18 Jun 2010 16:55:11 +0800 |
| Dkim-signature: | v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:received:received:date:message-id :subject:from:to:content-type; bh=Yfcuq27KUQ/TO6vxCCbFcxyhBDz5utK/8olbpzXue7g=; b=Vw1nyWU/wTUN9kCCobq5VldjeVY2Ng292hX2KAd2o/+qwsXdE/jCdlPU4X/2Nqw5A7 8/RHYyibRIi0gwsEMDyB0WWx8dvmz/u8/AWVRkjqhOkgMfOMqX9LvqXfXZsx4YXW0p0h 3gSJJhv9JiTZbtPu+6ESjALMp28J5e0Tecmp0= |
| Domainkey-signature: | a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:date:message-id:subject:from:to:content-type; b=bRglFNrtRjyIIr6LuIG9eIjN6x6gwq0c226YigrbHA8Tf+xfY6+/kRenXk+9OnOHTv u4elEstLME1QAmehDVBtxlvkh8knj1IBaKzYHVH/p1eEryVhGK2hG4feOKfK8e7c6DzT nkof2kwGZ0gZgAcW9cgK7+qoLPUopytjbPZxs= |
|
>From Intel's Software Developer’s Manual, I found that when program traps to OS using INT n, processor will clear TF flag, which in effect disables single-stepping through interrupt handler. And it also says debugger should recognize and simulate INT n rather than execute it directly. I searched KDB's code for INT-simulating part but failed to find one. So, can any body give some direction? Thanks. |
| <Prev in Thread] | Current Thread | [Next in Thread> |
|---|---|---|
| ||
| Previous by Date: | Moduler Mobilya - Rayli Dolap - Mutfak Dolaplari, Deniz Mobilya |
|---|---|
| Next by Date: | Kernel debugging seminar Wednesday June 23, 2010, Jason Wessel |
| Previous by Thread: | Moduler Mobilya - Rayli Dolap - Mutfak Dolaplari, Deniz Mobilya |
| Next by Thread: | Kernel debugging seminar Wednesday June 23, 2010, Jason Wessel |
| Indexes: | [Date] [Thread] [Top] [All Lists] |