xdump | Simple tool for dumping process memory on linux

by blendin C Version: Current License: No License

X-Ray Key Features Code Snippets Community Discussions(2)Vulnerabilities Install Support

kandi X-RAY | xdump Summary

xdump is a C library typically used in Utilities applications. xdump has no bugs, it has no vulnerabilities and it has low support. You can download it from GitHub.

Simple tool for dumping process memory on linux

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Quality

Security

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Support

xdump has a low active ecosystem.

It has 5 star(s) with 1 fork(s). There are 1 watchers for this library.

It had no major release in the last 6 months.

xdump has no issues reported. There are no pull requests.

It has a neutral sentiment in the developer community.

The latest version of xdump is current.

Quality

xdump has 0 bugs and 0 code smells.

Security

xdump has no vulnerabilities reported, and its dependent libraries have no vulnerabilities reported.

xdump code analysis shows 0 unresolved vulnerabilities.

There are 0 security hotspots that need review.

License

xdump does not have a standard license declared.

Check the repository for any license declaration and review the terms closely.

Without a license, all rights are reserved, and you cannot use the library in your applications.

Reuse

xdump releases are not available. You will need to build from source code and install.

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xdump Key Features

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xdump Examples and Code Snippets

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Community Discussions

Trending Discussions on xdump

HLASM on z/OS Issues errors about Invalid OpCode

NullPointerExceptions from random lines of code

QUESTION

HLASM on z/OS Issues errors about Invalid OpCode

Asked 2019-Jun-22 at 19:47

I'm trying to add two numbers and subtract two numbers but when I compile my code it says 'invalid op-code' (I'm using assist (IBM))

...

ANSWER

Answered 2019-Jun-21 at 18:41

You have put your data where the assembler expects instructions to be. You need to find out how to specific a data or literal area and put your data there. Or rewrite your code to use immediate type data, where the values are in the itext.

Source https://stackoverflow.com/questions/56695606

QUESTION

NullPointerExceptions from random lines of code

Asked 2017-Apr-10 at 22:39

I'm testing a custom Eclipse-RCP application. This application does some simple initialization and then starts a bunch of threads which parse a lot of XML files inside workspace.

Around once in 1000 executions one of those threads crashes with NullPointerException. This usually happens inside Xerces, sometimes in other libraries and sometimes inside Java standard library. The problem is those NullPointerExceptions seem to happen in lines where no pointer is dereferenced. For example:

...

ANSWER

Answered 2017-Apr-10 at 22:39

What could be causing this behavior

An instrumentation agent, a hardware bug or SIGSEGV signal somehow sent to the process.

Does OpenJDK has option like IBMs -Xdump so I can obtain core dump when problematic NullPointerException happens?

-XX:AbortVMOnException=java.lang.NullPointerException, but this option is available in non-product builds only.

Is there some trick to set gdb breakpoint on NullPointerException?

You may try to set a breakpoint at the following functions:

Runtime1::throw_null_pointer_exception(JavaThread*)
SharedRuntime::throw_NullPointerException(JavaThread*)
SharedRuntime::throw_NullPointerException_at_call(JavaThread*)

Though an exception may be thrown from a lot more different places.

A better way is to setup JVM TI callback that will be invoked on every thrown exception. Here is an example of JVM TI agent that intercepts exceptions.

Could this be related to JVMs implicit null checks? Is there some flag to disable them

This is probably related. Implicit null checks may be disabled by -XX:-ImplicitNullChecks, but the flag is again available only in debug builds of JVM.

Source https://stackoverflow.com/questions/43324965

Community Discussions, Code Snippets contain sources that include Stack Exchange Network

Vulnerabilities

No vulnerabilities reported

Install xdump

You can download it from GitHub.

Support

For any new features, suggestions and bugs create an issue on GitHub. If you have any questions check and ask questions on community page Stack Overflow .

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