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  2. #yocto cmake configurations

Re: #yocto cmake configurations #yocto

Monsees, Steven C (US)
 

 

All the libraries are under the SDK here:

 

-L/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/corei7-64-poky-linux/usr/lib

 

I need the DRM libraries to be picked up correctly, libclang.so may not be required since I have all the static variations available, (added to while testing linker) I have yet to make it through entire build due to linker issue…

 

Steve

 

From: yocto@... <yocto@...> On Behalf Of Monsees, Steven C (US) via lists.yoctoproject.org
Sent: Wednesday, May 5, 2021 6:44 AM
To: Khem Raj <raj.khem@...>
Cc: yocto@...
Subject: Re: [yocto] #yocto cmake configurations

 

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Khem:

 

I only have the following libraries present for these:

 

libclang.so  

libclang.so.9

libdrm_intel.so

libdrm_intel.so.1

libdrm_intel.so.1.0.0

libdrm.so

libdrm.so.2

libdrm.so.2.4.0   

 

I do generate the static (*.a) files for both LLVM & Clang and they appear to all be present (No libclang.a was generated).

 

Steve

 

From: Khem Raj <raj.khem@...>
Sent: Tuesday, May 4, 2021 7:46 PM
To: Monsees, Steven C (US) <steven.monsees@...>
Cc: yocto@...
Subject: Re: [yocto] #yocto cmake configurations

 

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the cmd seems to pass --sysroot correctly so can you search in SDK sysroot if you have libclang.a libdrm_intel.a and libdrm.a ?

 

On Tue, May 4, 2021 at 3:20 PM Monsees, Steven C (US) via lists.yoctoproject.org <steven.monsees=baesystems.com@...> wrote:

Yes, LLVM & Clang…

 

From: Khem Raj <raj.khem@...>
Sent: Tuesday, May 4, 2021 5:17 PM
To: Monsees, Steven C (US) <steven.monsees@...>
Cc: yocto@...
Subject: Re: [yocto] #yocto cmake configurations

 

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I see its using -rdynamic -static

so next question is that do you have .a files in your sdk ?

 

On Tue, May 4, 2021 at 12:57 PM Monsees, Steven C (US) via lists.yoctoproject.org <steven.monsees=baesystems.com@...> wrote:

 

Attached…

 

From: Khem Raj <raj.khem@...>
Sent: Tuesday, May 4, 2021 2:36 PM
To: Monsees, Steven C (US) <steven.monsees@...>
Cc: yocto@...
Subject: Re: [yocto] #yocto cmake configurations

 

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can you post full linker cmd which is failing ?

 

On Tue, May 4, 2021 at 11:24 AM Monsees, Steven C (US) via lists.yoctoproject.org <steven.monsees=baesystems.com@...> wrote:

 

My standard zeus SDK appears to have an issue linking in my applications dynamic libs…

 

/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/x86_64-pokysdk-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/9.2.0/real-ld: cannot find -ldrm_intel

/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/x86_64-pokysdk-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/9.2.0/real-ld: cannot find -ldrm

/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/x86_64-pokysdk-linux/usr/libexec/x86_64-poky-linux/gcc/x86_64-poky-linux/9.2.0/real-ld: cannot find -lclang

collect2: error: ld returned 1 exit status

The libraries are under: /disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/corei7-64-poky-linux/usr/lib/

 

My CMake build app does not appear to have an issue finding the files:

 

DRM_INTEL_LIBRARIES:STRING=/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/corei7-64-poky-linux/usr/lib/libdrm_intel.so

DRM_LIBRARIES:STRING=/disk0/scratch/smonsees/sbcbSTD_SDK/limws/3.0.4/sysroots/corei7-64-poky-linux/usr/lib/libdrm.so

 

It appears to be an issue specifically with the ld…

 

LDFLAGS= " --sysroot=$ENV{OECORE_TARGET_SYSROOT} -L$ENV{OECORE_TARGET_SYSROOT}/usr/lib -L$ENV{OECORE_TARGET_SYSROOT}/usr/lib/x86_64-poky-linux/9.2.0 -lpthread -pthread -O2 -pipe -Wl,-O1 -Wl,-O1 -Wl,--hash-style=gnu -Wl,--as-needed"

 

It does not appear to be making use of –L’s…

 

Is there something I might look at/configure (i.e. add paths to search paths) ?

Is there a simple test to validate tool ?

 

Thanks,

Steve

 

From: yocto@... <yocto@...> On Behalf Of Monsees, Steven C (US) via lists.yoctoproject.org
Sent: Sunday, May 2, 2021 1:28 PM
To: yocto@...
Subject: [yocto] #yocto cmake configurations

 

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I am using zeus, standard SDK, cmake…

 

Can I pre-configure the SDK to setup cmake package search paths ?, say for find_package, etc. (i.e. detecting external libraries/programs)…

 

The majority of my env is configuring properly, but I am finding cmake is setup for a standard linux env with regards to these types of searches, and

I wanted the cmake built in to look at my SDK paths (first by default) when doing such things as detecting python interpreter, libraries, etc.

 

I am working on third party package unaware of my SDK setup.

 

Thanks,

Steve

 

 

 
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