Argc= Error Reading Variable Cannot Access Memory At Address
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Cannot Access Memory At Address Gdb
us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up Segfault with GLFW and GLEW up vote 1 down vote favorite I have the following code, taken from part of an OpenGL application I'm working on. GDB reports that the code segfaults immediately when calling glfwInit(). The strange thing is, if I change the value of height to 256 (or at least, anything so height < 512), the segfault disappears. #include
Development Programming/Scripting argc=Cannot access memory at address 0x0 Welcome! If this is your first visit, be sure to check out the FAQ. You will have to register before you can post in the forums. (Be aware the forums do not accept user names with a dash "-") Also, logging in lets you avoid the CAPTCHA verification when searching . Select Articles, Forum, or Blog. Posting in the Forums implies acceptance of the Terms and Conditions. Page 1 of 3 123 Last Jump to page: Results 1 to 10 of 26 Thread: argc=Cannot access memory at address 0x0 Thread Tools Show Printable Version Subscribe to this Thread… Display Linear Mode Switch to Hybrid http://stackoverflow.com/questions/16243057/segfault-with-glfw-and-glew Mode Switch to Threaded Mode 29-May-2009,02:00 #1 roberto60 View Profile View Forum Posts View Blog Entries View Articles Explorer Penguin Join Date Jul 2008 Posts 232 argc=Cannot access memory at address 0x0 Hi I'm a self-trained C programmer getting in trouble finding a segmentation fault error. Debugging the program all seems coherent except the stack messages (i'm using gdb): Code: main (argc=Cannot access memory at address 0x0) to test this I wrote the following https://forums.opensuse.org/showthread.php/415438-argc-Cannot-access-memory-at-address-0x0 program: Code: #include
HCL Search Reviews Search ISOs Go to Page... LinuxQuestions.org > Forums > Non-*NIX Forums > Programming gdb cannot display argc/argv? User http://www.linuxquestions.org/questions/programming-9/gdb-cannot-display-argc-argv-518283/ Name Remember Me? Password Programming This forum is for all programming questions. The question does not have to be directly related to Linux and any language is fair https://www.sharcnet.ca/help/index.php/Common_Bugs_and_Debugging_with_gdb game. Notices Welcome to LinuxQuestions.org, a friendly and active Linux Community. You are currently viewing LQ as a guest. By joining our community you will have the cannot access ability to post topics, receive our newsletter, use the advanced search, subscribe to threads and access many other special features. Registration is quick, simple and absolutely free. Join our community today! Note that registered members see fewer ads, and ContentLink is completely disabled once you log in. Are you new to LinuxQuestions.org? Visit the following links: cannot access memory Site Howto | Site FAQ | Sitemap | Register Now If you have any problems with the registration process or your account login, please contact us. If you need to reset your password, click here. Having a problem logging in? Please visit this page to clear all LQ-related cookies. Introduction to Linux - A Hands on Guide This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter. For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
Pathscale Compilers 4.2 Intel Compilers 5 Using gdb 5.1 first bug: an FPE 5.2 second bug: a segmentation fault 5.3 using core files 5.4 debugging interactively 5.5 Hungup Processors 5.6 documentation 6 Other useful debuggers 7 Examples Overview This tutorial provides a concise explanation of frequently encountered bugs and how to use gdb to debug serial programs at SHARCNET. It is not comprehensive and only aims to give users enough knowledge to get started on their own. To debug parallel programs users should consult the SHARCNET Parallel Debugging with DDT tutorial. Note that it can also be used to debug serial programs, should one desire a graphical interface. Identifying bugs and errors Typically one realizes they've encountered a problem with their program when it fails to complete (crashes) or when it doesn't produce the expected output (either corrupted/incorrect output or a failure to progress (hangs)). One can determine that a job exited in an erroneous state by inspecting the job exit code in the web portal (see the jobs table at the bottom of your your activity page) or by looking at the job output file (every job submission with sqsub should use the -o option to specify one). The output from the job can also indicate a problem with the state of the program or a lack of progress. For more information on diagnosing the behavior of jobs see Monitoring Jobs. When a job fails it's output may contain a runtime error message or a signal from the operating system that helps identify the problem. If no error message is generated or if the message is insufficient one can use a debugger to manipulate and inspect the code as it is running to identify the nature and scope of the problem. Common bugs and errors Some frequently encountered OS signals resulting from a program encountering an erroneous state include: Signal NameOS signal #OS signal nameDescription Floating point exception8SIGFPEThe program attempted an arithmetic operation with values that do not make sense (eg. divide by zero) Segmentation fault11SIGSEGVThe program accessed memory incorrectly (eg. accessing an array beyond it's declared bounds), exceeding environment limits (eg. stacksize) Aborted6SIGABRTGenerated by the runtime library of the program or a library it uses, after having detected a failure condition Another problem that is common in scientific computing is the handling of exceptional values. Depending on the compiler and the runtime environment a program may produce NaN values that go unreported and lead to the corruption of your results (and wasting lots of cycles). By selecting the right compiler flags (or if necessary, library functions) you can cau