About the armlink behavior when the linked object is not explicitly used by the main executable

Posted by thincal on Stack Overflow See other posts from Stack Overflow or by thincal
Published on 2012-06-29T03:11:50Z Indexed on 2012/06/29 3:15 UTC
Read the original article Hit count: 144

Filed under:

dll

|

linker

|

arm

I want to link the example with liba.so, and also the example is NOT using anything inside the liba.so ...

    armlink --userlibpath /mylib/lib liba.so --fpic --shared -o example main.o demo.o

So finally I got nothing from: readelf -d example | grep NEEDED, it seems that armlink do some optimization to remove the linked library which is not really used by the "example" ? If I want to let the liba.so be always linked into example, what need I do with armlink options ?

Any information is very appreciated ;)

© Stack Overflow or respective owner

Related posts about dll

Mixing Silverlight-Specific System.Xml.Linq dll with Non-Silverlight System.Xml.Linq dll

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a Logic layer that references Silverlight's System.Xml.Linq dll and a GUI that is in WPF (hence using the non-Silverlight System.Xml.Linq dll). When I attempt to pass an XElement from GUI project to a method in the Logic project, I am getting (basically) "XElement is not of type XElement" errors… >>> More
SetupAPI.DLL to HID.DLL

as seen on Stack Overflow - Search for 'Stack Overflow'
With the SetupAPI.DLL I execute Function SetupDiGetClassDevs and get a pointer or handle Then Begin a loop Then I run Return = Function SetupDiEnumDeviceInterfaces with SP_DEVICE_INTERFACE_DATA.cbSize = 0 to get my size of what SP_DEVICE_INTERFACE_DATA needs to be Then I set size and execute again… >>> More
ASP.Net error: “The type ‘foo’ exists in both ”temp1.dll“ and ”temp2.dll" (pt 2)

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm experiencing the same problem as in this question, but none of the answers fixed my problem. (edit: Setting the web.config batch attribute works, but that's a coverup, not a solution) The problem I'm having is with a User Control that I moved from the root directory to a subdirectory within the… >>> More
Application Specific Paths for DLL Loading when DLL is loaded dynamically

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi: I am building a program that uses a very simple plugin system. This is the code I'm using to load the possible plugins: public interface IPlugin { string Name { get; } string Description { get; } bool Execute(System.Windows.Forms.IWin32Window parent); } private void loadPlugins() … >>> More
StackOverflow Exception in Umanaged Dll When Called from Managed DLL

as seen on Stack Overflow - Search for 'Stack Overflow'
My question is similar to this one here, but there are some difference. I have a fortran dll as the backend, and a C# exe as the front end. I use PInvoke to pass data between them. There are 22 parameters between the C# and the fortran code. And some of them are integer, double, pointers ( C#… >>> More

Related posts about linker

Understanding Linker Map File (MS Visual Studio 2005)

as seen on Stack Overflow - Search for 'Stack Overflow'
All - I'm trying to understand the first section of the Map file produced by the MS Visual Studio 2005 linker. I know it has something to do with memory sections, but can someone help me decipher it? Timestamp is 4b4f8d2b (Thu Jan 14 14:31:23 2010) Preferred load address is 00400000 Start … >>> More
How to resolve this VC++ 6.0 linker error?

as seen on Stack Overflow - Search for 'Stack Overflow'
This is a Windows Console application (actually a service) that a previous guy built 4 years ago and is installed and running. I now need to make some changes but can't even build the current version! Here is the build output: --------------------Configuration: MyApp - Win32 Debug-------------------- Compiling… >>> More
Linking non-object file at a particular address

as seen on Stack Overflow - Search for 'Stack Overflow'
Hi All, Is there any option in GNU linker or linker script to load a non-object file at a particular address (i.e. the non-object file should be part of the executable image output by linker) ? Any help is appreciated. Regards, Kiran >>> More
Unit Testing iPhone - Linker Errors

as seen on Stack Overflow - Search for 'Stack Overflow'
I've followed the Unit Testing Applications guide from the iPhone Development documentation. I followed all the steps and it worked with the TestCase from the documentation. But as soon as I changed the TestCase to test real Code from my project I ended up with linker errors. All classes that are… >>> More
Derived class linker - is this wrong?

as seen on Stack Overflow - Search for 'Stack Overflow'
We have this situation: A B ^ ^ | / C so class A { } class B { } class C : public A, public B { } Now, B wants to access a property in C. How do you do this? The solution I came up with is to place a pointer… >>> More