On 9/17/22 16:57, Richard Purdie wrote:
On Sat, 2022-09-17 at 14:56 +0300, Andrey Konovalov wrote:
When building an OpenCL program clover needs to locate opencl-c.h
include file. This include file location is passed via cpp args using
CLANG_RESOURCE_DIR macro. To set CLANG_RESOURCE_DIR value meson currently
uses "$(llvm-config --libdir)" which results in path to sysroot included
into CLANG_RESOURCE_DIR. Then clBuildProgram() fails with
"fatal error: 'opencl-c.h' file not found".
Work this around by using '/usr/lib' instead of the libdir value
exported by LLVM.
Microsoft/Intel CLC should suffer from the same issue, and the similar
workaround should work in this case too.
Signed-off-by: Andrey Konovalov <[email protected]>
---
...-meson.CLANG_RESOURCE_DIR-workaround.patch | 42 +++++++++++++++++++
meta/recipes-graphics/mesa/mesa.inc | 1 +
2 files changed, 43 insertions(+)
create mode 100644
meta/recipes-graphics/mesa/files/0001-meson.CLANG_RESOURCE_DIR-workaround.patch
diff --git
a/meta/recipes-graphics/mesa/files/0001-meson.CLANG_RESOURCE_DIR-workaround.patch
b/meta/recipes-graphics/mesa/files/0001-meson.CLANG_RESOURCE_DIR-workaround.patch
new file mode 100644
index 0000000000..db60fe407f
--- /dev/null
+++
b/meta/recipes-graphics/mesa/files/0001-meson.CLANG_RESOURCE_DIR-workaround.patch
@@ -0,0 +1,42 @@
+From: Andrey Konovalov <[email protected]>
+Date: Fri, 16 Sep 2022 16:58:20 +0000
+Subject: [PATCH] CLANG_RESOURCE_DIR workaround
+
+Setting CLANG_RESOURCE_DIR to "$(llvm-config --libdir)something"
+results in clBuildProgram() error when an OpenCL program is being
+built on the target. The reason is that $(llvm-config --libdir) output
+includes path to the sysroot directory.
+
+Work this around by using '/usr/lib' instead of the libdir value
+exported by LLVM.
+
+Upstream-Status: Inappropriate
+Signed-off-by: Andrey Konovalov <[email protected]>
+
+---
+
+--- a/src/gallium/frontends/clover/meson.build 2022-09-16 10:24:55.910577158
+0000
++++ b/src/gallium/frontends/clover/meson.build 2022-09-16 10:28:13.112804197
+0000
+@@ -71,8 +71,7 @@ libclllvm = static_library(
+ clover_opencl_cpp_args,
+ clover_spirv_cpp_args,
+ '-DCLANG_RESOURCE_DIR="@0@"'.format(join_paths(
+- dep_llvm.get_variable(cmake : 'LLVM_LIBRARY_DIR', configtool:
'libdir'), 'clang',
+- dep_llvm.version(), 'include',
++ '/usr/lib', 'clang', dep_llvm.version(), 'include',
+ )),
+ ],
+ gnu_symbol_visibility : 'hidden',
+--- a/src/compiler/clc/meson.build 2022-09-16 16:40:10.641735401 +0000
++++ b/src/compiler/clc/meson.build 2022-09-16 16:50:18.095700452 +0000
+@@ -39,7 +39,9 @@ files_libclc = files(
+ 'clc_helpers.cpp',
+ )
+
+-_libclc_cpp_args = ['-DCLANG_RESOURCE_DIR="@0@"'.format(clang_resource_dir)]
++_libclc_cpp_args = ['-DCLANG_RESOURCE_DIR="@0@"'.format(join_paths(
++ '/usr/lib', 'clang', dep_llvm.version(), 'include'
++ ))]
+ if with_microsoft_clc
+ _libclc_cpp_args += ['-DUSE_STATIC_OPENCL_C_H=1']
+ endif
libdir might not be /usr/lib so this isn't always going to be
correct...
I see. Will look for a better option then just hardcoded '/usr/lib' then.
Thanks,
Andrey
Cheers,
Richard
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