Sadly the magic is not perfect: llvm-config contains a hardcoded value for the libdir from the native configuration, and things will break if the target build installs libraries somewhere else (e.g. lib64).
llvm-config in target bindir also needs a rpath adjustment, otherwise it simply won't even run when e.g. building for arm on x86. To avoid patching llvm-source let's simply add more cases to the llvm-config wrapper script, so that falling through to llvm-config binary is avoided. Fortunately those cases are all static in what they return, even though llvm-config binary does poke around the file tree to arrive at them (which is where breakage happens if native and target don't match exactly wrt libdir). I verified that this works by building mesa with llvm enabled for qemuarm64 and with baselib set to 'lib64' - so that both the target architecture and target libdir differ from native ones. Upstream tickets: https://github.com/llvm/llvm-project/issues/58984 https://github.com/mesonbuild/meson/issues/11043 Signed-off-by: Alexander Kanavin <[email protected]> --- meta/recipes-devtools/llvm/llvm/llvm-config | 9 +++++++++ meta/recipes-graphics/mesa/mesa.inc | 10 ---------- 2 files changed, 9 insertions(+), 10 deletions(-) diff --git a/meta/recipes-devtools/llvm/llvm/llvm-config b/meta/recipes-devtools/llvm/llvm/llvm-config index a45f38c650..5e4ded2da5 100644 --- a/meta/recipes-devtools/llvm/llvm/llvm-config +++ b/meta/recipes-devtools/llvm/llvm/llvm-config @@ -29,6 +29,15 @@ for arg in "$@"; do --ldflags) output="${output} ${LDFLAGS}" ;; + --shared-mode) + output="${output} shared" + ;; + --libs) + output="${output} -lLLVM" + ;; + --link-shared) + break + ;; *) remain="${remain} ${arg}" ;; diff --git a/meta/recipes-graphics/mesa/mesa.inc b/meta/recipes-graphics/mesa/mesa.inc index 6246b723cf..1949fc15a9 100644 --- a/meta/recipes-graphics/mesa/mesa.inc +++ b/meta/recipes-graphics/mesa/mesa.inc @@ -55,17 +55,7 @@ ANY_OF_DISTRO_FEATURES:class-target = "opengl vulkan" PLATFORMS ??= "${@bb.utils.filter('PACKAGECONFIG', 'x11 wayland', d)}" -# By placing llvm-config in the target sysroot bindir, it will then map values -# to the target libdir magically. We can safely add to path as there are no other binaries -# there. -PATH:prepend = "${STAGING_BINDIR_CROSS}:${STAGING_BINDIR}:" MESA_LLVM_RELEASE ?= "${LLVMVERSION}" -do_configure:prepend () { - if [ -e ${STAGING_BINDIR_NATIVE}/llvm-config${MESA_LLVM_RELEASE} ]; then - cp ${STAGING_BINDIR_NATIVE}/llvm-config${MESA_LLVM_RELEASE} ${STAGING_BINDIR} - cp ${STAGING_BINDIR_NATIVE}/llvm-config ${STAGING_BINDIR} - fi -} # set the MESA_BUILD_TYPE to either 'release' (default) or 'debug' # by default the upstream mesa sources build a debug release -- 2.30.2
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