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mesa: avoid host path poisoning when enabling OpenCL

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When enabling rusticl (and the shared-llvm meson feature via the
gallium-llvm PACKAGECONFIG documented dependency), the clc headers are
looked on the filesystem at runtime. Unfortunately, part of the lookup
path contains LLVM_LIB_DIR, a variable derived from llvm_libdir meson
variable. The latter is required to figure out where the clang/llvm
libraries are for the cross-compiler but the former is used when running
on the target. When in a cross-compiling environment, LLVM_LIB_DIR would
actually point at a non-existing path (the sysroot path on the build
host) instead of the target path. This sadly triggers a buildpaths QA
error in addition of being incorrect.

Another option is to bundle the clc headers directly inside the binary
instead of looking them up at runtime, something we can do with
mesa-clc-bundle-headers meson feature.

So let's do that to fix the issue and buildpaths QA error.

Suggested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Tested-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
(From OE-Core rev: cd0e70d6cee5ccb698bbcfd4dbc10675649556e7)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Quentin Schulz
2025-09-04 16:03:40 +02:00
committed by Richard Purdie
parent 6e54c8c7ff
commit ff07745cbd
1 changed files with 1 additions and 1 deletions
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meta/recipes-graphics/mesa/mesa.inc
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@@ -129,7 +129,7 @@ PACKAGECONFIG[egl] = "-Degl=enabled, -Degl=disabled"
# "opencl" also requires libclc and gallium-llvm to be present in PKGCONFIG!
# Be sure to enable them both for the target and for the native build.
PACKAGECONFIG[opencl] = "-Dgallium-rusticl=true, -Dgallium-rusticl=false, bindgen-cli-native"
PACKAGECONFIG[opencl] = "-Dgallium-rusticl=true -Dmesa-clc-bundle-headers=enabled, -Dgallium-rusticl=false, bindgen-cli-native"
PACKAGECONFIG[broadcom] = ""
PACKAGECONFIG[etnaviv] = ",,python3-pycparser-native"