Running Mac OS 10.7.2 and trying to run libfaketime and nothing happen. I installed and ran exactly as directed only the time and date stay exactly as are set in the system? Is anyone else able to successfully run this on OSX?
$ date
Mon Jan 30 21:05:09 CST 2012
$ LD_PRELOAD=./libfaketime.so.1 FAKETIME="-15d" date
Mon Jan 30 21:05:32 CST 2012
Everything on OSX is prefixed DYLD, not LD. And they change the names a bit.. I think what you want is:
DYLD_INSERT_LIBRARIES
This is a colon separated list of dynamic libraries to load before the ones specified in the program. This lets you test new modules of existing dynamic shared libraries that are used in flat-
namespace images by loading a temporary dynamic shared library with just the new modules. Note that this has no effect on images built a two-level namespace images using a dynamic shared library unless DYLD_FORCE_FLAT_NAMESPACE is also used.
Related
Some time ago (some years) my company purchased a license for the library called LibXL.
Previously the application was built on CentOS 6.5 without troubles.
I have currently set up a new system (Ubuntu 16.04) but LibXL returns a warning:
Created by LibXL trial version. Please buy the LibXL full version for removing this message.
Version of this library is exactly the same - I just copied .so file.
Application is built using C language.
License setting code:
xlBookSetKey(book,"<name>", "linux-<characters>");
Do we need to buy a new license key?
Maybe some operating system settings are wrong? or maybe I missed some configuration file? (I just copied the libxl.so file to the right place).
I have tried so many things. Literally taken me a week of trial and error. I managed to get the realtime firebase DB working but not the firestore as I can't call the command
composer require google/cloud-firestore
I have tried fresh installs 3 times for PHP and the other software. This really is not working. Why do I have to use this composer thing and them not just put a zip with all the relevant files inside?
With extension=php.dll in ini:
and changing to aboslute path surrounding extension, with and without .dll I have tried.
I've tried threadsafe and non threadsafe versions, and I also don't know what "1% is not a valid command" is. Also have tried x64 and x86 versions. The previous two images are x86 (which I assume to be 64 as my os is)
Here is an example of a x64 (I assume is 32bit) error. Procedure points cannot be found and it gives an error about entry points.
I have no idea what I did but I fixed it. To those reading this question just make sure in every place there is a php.ini they are the same directory!
Basically I have some C/C++ code that I need to build and debug on a Linux machine. Unfortunately, my windows laptop doesn't have enough free hard space to install some Linux dist nor does it have enough free RAM to comfortably run VM.
Until now, I dealt with it rather comfortably using WSL, but the scale was rather small. It was easy to edit and debug 2-3 .c files through CLI and gdb, but it became really annoying on a large scale projects.
I want something simple as "edit code in windows IDE [X], compile it on remote Linux/WSL (the project uses Makefiles), and preferably debug it via gdb".
VS has something close to what I want, but it can't deal with existing Linux projects. It needs to create a new configuration which is alien to the project's Makefile.
I know this question is a bit old, but I think the solution is to make a symlink between your WSL folder and the Window's folder. This is how I handled it for a Ubuntu-20.04 WSL:
Access PowerShell in Administrator mode
Type cmd.exe in the PowerShell
Once cmd.exe is opened, type mklink /d C:\<path_to_your_Windows_folder> \\wsl$\Ubuntu-20.04\home\<your_user>\<path_to_your_WSL_folder>
EDIT
This was tested under Windows 10 Version 2004 with WSL2
I'm unsure about C and C++ but it sounds like this is exactly the same as how i work in node and javascript every day.
I checkout my code using git inside WSL to a location like /mnt/c/code/myproject. Then using sublime/VS code/webstorm i edit the files in windows in the location c:\code\myproject this works really well and have been doing this every day for over a year.
Things to be aware of are that you need to ensure that your editor of choice saves files with linux line endings and that all command line operations are done inside WSL.
Please see this article to see the differences between windows and linux files and how this works inside the WSL.
I want something simple as "edit code in windows IDE , compile it on remote linux/WSL
You will have something as simple as that.
Only with Windows 19.03 though:
See "Updated WSL in Windows 10 version 1903 lets you access Linux files from Windows"
Microsoft's Craig Loewen says:
In the past, creating and changing Linux files from Windows resulted in losing files or corrupting data. Making this possible has been a highly requested and long anticipated feature. We're proud to announce you can now easily access all the files in your Linux distros from Windows.
So how does this work? He goes on to explain:
To put it briefly: a 9P protocol file server facilitates file related requests, with Windows acting as the client.
We've modified the WSL init daemon to include a 9P server. This server contains protocols that support Linux metadata, including permissions.
There is a Windows service and driver that acts as the client and talks to the 9P server (which is running inside of a WSL instance).
Client and server communicate over AF_UNIX sockets, since WSL allows interop between a Windows application and a Linux application using AF_UNIX as described in this post.
Warning:
The old rules still apply, you should NOT access your Linux files inside of the AppData folder!
If you try to access your Linux files through your AppData folder, you are bypassing using the 9P server, which means that you will not have access to your Linux files, and you could possibly corrupt your Linux distro.
I am using Intel(R) VTune(TM) Amplifier XE 2013 Update 5 (build 274450) for my linux application hotspot collect， but the report says the "[Outside any known module]" consume most of the time, so i want to get more info about the unknow module.
when i read the release notes of the vtune Amplifier, it says "List of hotspots may contain "Outside any known module" on systems with kernel older than 2.6.20 (200233501)", but my linux kernel is "2.6.32", any idea about this?
Check that your program is not generating code on the fly (i.e. is not JIT-ing). You may also want to switch grouping to "Module / Code Location / Call stack" and see which virtual addresses cannot be mapped by VTune to any known module.
I have been suffering from this issue in the past as well and it is very frustrating if you don't know why it is happening.
2 weeks ago I installed Ubuntu 13.04 and vtune update 14 and I was jumping from joy because I could see (again) what happened inside my code.
After doing some updates on my Ubuntu, vtune started to show your problem
I installed the kernel sources.. no help..
I reinstalled the driver, no help.
I reinstalled intel vtune.. no help.
And then I decided to run under root, and what do you know.. It works; no more 'Outside any known module'. I switched back to my regular user, it stopped working. I switched back to my root, and it works. So perhaps some kinds of access issue.
Maybe you could try this.
Probably you have some kernel hidden addresses by kptr_restrict, you ca review the value of "/proc/sys/kernel/kptr_restrict":
kptr_restrict = 0, kernel addresses are provided without limitations (recommended).
kptr_restict = 1, addresses are provided if the current user has a CAP_SYSLOG capability.
kptr_restrict = 2, the kernel addresses are hidden regardless of privileges the current user has.
You can use this option before running the trace:
sysctl -w kernel.kptr_restrict=0
More details here: https://software.intel.com/en-us/vtune-help-enabling-linux-kernel-analysis
Hope this helps!
I've got a C application using OCI to talk to a database. I'm using the instant client method so there is no standalone Oracle installation on the server - just a couple of libraries that the application is linked against.
Normally, the application runs as user dai, and everything works just fine. But if the application is run as another user (in group dai), it fails to run, reporting:
Error while trying to retrieve text for error ORA-12705
So I can imagine that this is a permissions error, but I'm not sure what files it is trying to access. The permissions of the Oracle libraries are
dai:/dai/oracle/lib> ls -l
total 201872
-rwxrwxrwx 1 dai dai 24719097 16 Feb 2009 libclntsh.a
-rwxrwxrwx 1 dai dai 5972457 16 Feb 2009 libocci.a
-rwxrwxrwx 1 dai dai 72651344 04 Jun 2010 libociei.so
As you can guess the main OCI libraries are statically linked, but there is one dynamically linked library (not sure why, but the AIX instantclient package came with these files...). My LIBPATH looks OK from both users:
LIBPATH=/dai/oracle/lib
Which other permissions do I need to check?
EDIT: I have just tried running truss (AIX equivalent of Linux strace) to see what is happening. I couldn't see it reading any unexpected files when running as the dai user. Truss seemed to have problems tracing a set-uid program - permissions on the C application were set like this:
dai:/dai/bin> ls -l stats_backup
-rwsrwsr-x 1 dai dai 6173358 Aug 12 10:08 stats_backup
So I did chmod a-s and tried again, and it now works!
So the program runs OK without the s-bit, but as soon as I put it back, it breaks again. I can't run truss with the s-bit set, which makes it difficult to find out why this should be. The program doesn't work in other circumstances without the s-bit set, so this isn't a viable solution, but hopefully a pointer to where the problem may be.
There are presumably some Oracle data files located somewhere that your other users don't have access to. According to Google, ORA-12705 happens because the NLS data files (wherever they are) can't be accessed, or perhaps there is some environment variable issue.