Posts

linux - What is the recommended way to perform source-level debugging of system library calls? -

I need to debug some calls in the system library, to understand how the call is different, and why a Or the other will fail. Compromised system libraries and separate debug symbol files for Linux Distros, for example, /lib/libc-2.8. Therefore, symbols have been stripped, leaving information behind a section called .gnu_debuglink that contains information to find a different debug file. Separate debug files are installed through the debug package, and contain the symbolic information required by GDB. It is well described and After installing the debug package and sources, I was hoping that GDB symbols and sources would be available and I would be able to see the listing and take steps in the calls. Instead, GDB tells me "no line number to go for xyz" I've verified that the debug-file-location is correct, and the directory is set to source directories. Is it possible to do what I want to do? Am I going to go wrong about this? Is there an easier way? Did you...

What is happening with this Common Lisp code? -

I have written the following code to simulate the six-sided rolling multiple times to die and how many times each has counted Side landed: (defun dice (num) (let (myList '(0 0))) (progn (format t "~ a" myList) (1 for loop To num (but myRand (random 6)) (setf (nth myRand myList) (+ 1 (nth myRand myList)))) (format t "~ a" myList))) function works great for the first time when I call it, but the variables on the subsequent calls start at the myList value Confirms that began at the end of the last call, all was as I thought instead to revert to zero should be with the Come statement why this happens? This is the result of using a continuous list in the initiator: ((myList '(0 0 0))) Change that line to: (((MyList (list 0 0) 0))) And it will behave according to your expectation. The first line results only once in the allocation (because it is a continuous list), but list code> you force the allocation every time you enter the f...

How do I change a background position with css3 animation? -

Let's say I have a div element, in the background position: 0%; I like the status such as position: 100%; , but with the keyframe on the hover I may not have to use the keyframe properly, it never works and I have all the latest browsers Thank you. If you just want to animate the background position in the background, use the transition instead of the frame animation It is very easy to see this Bella for an example: If you want to make an effort to make it an animation, then you have to set an animation-play state on 'Pause' and it will have to be changed. See Spoken about stopping the editions to 'walk' on the hover: Edit: I was bored, so this is the only thing that uses Cefime Animation: Obviously, the problem in Belal is that when you stop the aviation over the aviation, which is probably not the desired effect.

WCF Service - Load Testing -

I have a WCF service that is hosted as a Windows service and all open methods as OneWay = true Has been defined. Now, I want to test this service to see how the service will respond to more than 100 customers in real-time scenario. What steps can I take to make anybody above? P> Thank you! Try or

xpath or css needed for following html snippet -

The following HTML code produces pop-ups to add to the product that is trying to find the exches or CSS that selenium Which will allow the button to click on "Add" to add the "product" button. I tried to use this xpath // div [18] / div [2] / div / button which only works for a session. When you close the browser and reopen, then XP does not work above. So, how can we write such a xpath, which does not have to give div [number] in this case [18]. & lt; Div style = "height: auto; min-height: 104 pixels, width: auto;" class = "dialogue ui-dialog-content ui-widget-content" & gt; & Lt; Fieldset & gt; & Lt; Story & gt; Search & lt; / Narrative & gt; & Lt; Div id = "namoride" & gt; & Lt; Input type = "radio" & gt; Name & lt; Input type = "radio" & gt; Id & lt; / Fieldset & gt; & Lt; Div style = "clear: both; padding-top: 5px; float: right;...

cordova - Android - How to specify photo file name/directory using Phonegap -

How can I specify the name and destination of the photos captured using PhoneGrap? This information was not found anywhere. It just goes to /sdcard/pic.jpg. Even I have so far: function capture photo (navigator.camera.getPicture (onSuccess, onfell, {quality: 50, destination type) : Camera.domainType.FOLE_URI}); Success on the Festival (imageURI) {var image = document.getElementById ('myImage'); Image.style.display = 'block'; Image.src = imageURI; } File (message) on function {warning ('failed because:' message); }} Try content: // media / external / images / Media / n where n is the image number that you are trying to call (1,2,3, etc.)

c++ - Bitwise operator to get byte from 32 bits -

I'm interested in writing a function getMyByteChunkFunction which accepts two parameters - a 32 For example, this integer is given: - - For example, the bit integer and a byte offset (0, 1, 2, or 3), then removes bytes related to 32-bit integers. (3) (2) (1) (0) --- byte numbers int word = 10101010 00001001 11001010 00000101 function call getMeByteChunkFunction (word, 2) Returns 00001001 . However, I can use bitwise operators limited in it. Only me & gt; & Gt; , & lt; I am allowed to use a , and exactly one subtraction I know how to do this and using XOR, but I do not know how I use a subtraction here Any thoughts? One idea is as follows: Suppose that you have a four-byte value: aaaaaaaa bbbbbbbb cccccccc dddddddd Suppose you want to get a byte BBBBBBBB out of this if you move right by two bytes If you do, you can ???????? Reciprocity Aaaaaaaa bbbbbbbb This value is equal to what you want, except the ???????? Reciprocity Aaaaaaa (...