runpath - OpenMP temp fix

[kiritigowda]

Motivation

OpenMP link creates an unsafe runpath -- temp fix for mainline till the issue is resolved with OpenMP -- enable rocAL on RHEL 10

Technical Details

Linking AMD OpenMP to any downstream application creates a runpath which has relative path

Problem

Relative runpaths are deemed unsafe and fails packaging in RHEL 10 or newer

ERROR   0010: file '/opt/rocm/lib/librpp.so.2.0.0' contains an empty runpath in [:/opt/rocm-6.5.0/lib/llvm/bin/../lib]
ERROR   0020: file '/opt/rocm/lib/librpp.so.2.0.0' contains a runpath referencing '..' of an absolute path [:/opt/rocm-6.5.0/lib/llvm/bin/../lib]
error: Bad exit status from /var/tmp/rpm-tmp.LmQSKp (%install)
   Bad exit status from /var/tmp/rpm-tmp.LmQSKp (%install)

Fix for a similar issue in LLVM / AMD LLVM

llvm/llvm-project#143792

Reproduce issue using AMD OpenMP sample

https://rocm.docs.amd.com/projects/llvm-project/en/latest/conceptual/openmp.html#ompt-target-support

cd $ROCM_PATH/share/openmp-extras/examples/tools/ompt/veccopy-ompt-target-tracing
sudo make run
readelf -d veccopy-ompt-target-tracing

Output

readelf -d veccopy-ompt-target-tracing
 
Dynamic section at offset 0x5ae8 contains 27 entries:
  Tag        Type                         Name/Value
0x000000000000001d (RUNPATH)            Library runpath: [/opt/rocm-7.1.0/lib/llvm/bin/../lib:/opt/rocm-7.1.0/lib/llvm/bin/../../../lib]

Test Plan

Build in RHEL 10

Test Result

rocAL Package created using RPM

Submission Checklist

• [X ] Look over the contributing guidelines at https://github.com/ROCm/ROCm/blob/develop/CONTRIBUTING.md#pull-requests.

[Copilot]

Pull Request Overview

This PR addresses an unsafe runpath issue created by AMD OpenMP linking that prevents packaging in RHEL 10. The fix involves modifying the CMake configuration to use OpenMP libraries directly instead of the OpenMP target, and setting an explicit RPATH to avoid relative path references.

• Replaced OpenMP::OpenMP_CXX target with ${OpenMP_CXX_LIBRARIES} to avoid unsafe runpath generation
• Added explicit RPATH configuration using $ORIGIN references
• Commented out the OpenMP CXX flags setting

---

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop     #371      +/-   ##
===========================================
- Coverage    80.82%   80.81%   -0.00%     
===========================================
  Files          272      272              
  Lines        20915    20915              
===========================================
- Hits         16903    16902       -1     
- Misses        4012     4013       +1     

see 1 file with indirect coverage changes

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