tree 9b6282a4615b14f774801c6bc335eb565198b5eb
parent 9d35d544ce966098fdcb36107835d57a4dc1f32d
author Antonio Maiorano <amaiorano@google.com> 1612884586 -0500
committer swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com <swiftshader-scoped@luci-project-accounts.iam.gserviceaccount.com> 1612889066 +0000

VulkanWrapper: fix loading driver when lib path can be resolved by dlopen

On Linux-based machines, a shared library's path may be resolved in
multiple ways, such as from LD_LIBRARY_PATH. For these OSes, use dlopen
to see if it exists. Note that trying to create a vk::DynamicLoader with
an invalid path throws an exception, and enabling exceptions is not
always possible, so we want to detect the error case beforehand.

Bug: b/177624844
Change-Id: I5f27cfe485afbac0e4f6bda14eed2809669c2510
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/52629
Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Antonio Maiorano <amaiorano@google.com>
Presubmit-Ready: Antonio Maiorano <amaiorano@google.com>
Kokoro-Result: kokoro <noreply+kokoro@google.com>
Commit-Queue: Antonio Maiorano <amaiorano@google.com>