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ShaderCompileWorker symbol lookup issue using vulkan

4.19 commit level: ab8321efbc08e4f9473dea520af3d8d265ae6041 OS: Linux Distro: KDE Neon/Ubuntu 17.10 hybrid Clang:

 clang version 5.0.0-3 (tags/RELEASE_500/final)
 Target: x86_64-pc-linux-gnu
 Thread model: posix
 InstalledDir: /usr/bin

System Specs: As reported by steam Here

Issue: When starting UE4Editor with the -vulkan flag it fails with look up symbol in ShaderCompileWorker and Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so. Only an issue with Vulkan, does not happen with OpenGL4 and with or without a project.

Relevant Output:

 /Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 /mnt/store/4.19/Engine/Binaries/Linux/ShaderCompileWorker: symbol lookup error: /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 /mnt/store/4.19/Engine/Binaries/Linux/ShaderCompileWorker: symbol lookup error: /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 /mnt/store/4.19/Engine/Binaries/Linux/ShaderCompileWorker: symbol lookup error: /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 /mnt/store/4.19/Engine/Binaries/Linux/ShaderCompileWorker: symbol lookup error: /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 Engine/Binaries/Linux/UE4Editor: symbol lookup error: /mnt/store/4.19/Engine/Binaries/Linux/libUE4Editor-VulkanShaderFormat.so: undefined symbol: _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE


Product Version: UE 4.19 Preview
Tags:
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asked Jan 20 '18 at 10:19 PM in Bug Reports

avatar image

Salamanderrake
158 6 9 21

avatar image Salamanderrake Jan 21 '18 at 08:14 PM

Output of nm -D on /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so and then grepped for glslang and got:

 nm -D /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so | grep glslang 
 U _ZN7glslang12GlslangToSpvERKNS_13TIntermediateERNSt3__16vectorIjNS3_9allocatorIjEEEEPNS_10SpvOptionsE
 


avatar image Salamanderrake Jan 21 '18 at 09:25 PM

Relevent output of LD_DEBUG=libs after 18283: calling init: /mnt/store/4.19/Engine/Binaries/Linux/libShaderCompileWorker-VulkanShaderFormat.so Here

avatar image Sean L ♦♦ STAFF Jan 22 '18 at 02:09 PM

Hello,

We've recently made a switch to a new bug reporting method using a more structured form. Please visit the link below for more details and report the issue using the new Bug Submission Form. Feel free to continue to use this thread for community discussion around the issue.

https://forums.unrealengine.com/unreal-engine/announcements-and-releases/1410408-unreal-engine-bug-submission-form

Thanks

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