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From 5fb5780cdf9fe0f26ac1a076d0eaa82de61b5f8b Mon Sep 17 00:00:00 2001
From: Jim Broadus <jbroadus@xevo.com>
Date: Thu, 26 Mar 2020 16:05:53 -0700
Subject: [PATCH 22/24] clang: Fix resource dir location for cross toolchains
When clang looks for the resources directory, it does so based on the binary
location and assumes that the containing directory is a sibling to lib. The
Yocto cross.bbclass defines the default bindir as
${exec_prefix}/bin/${CROSS_TARGET_SYS_DIR}. ex: /usr/bin/aarch64-poky-linux/.
This causes clang to form a path that looks like /usr/bin/lib/clang/...
As a fix for this, check the parent directory name. If that is "bin", then
use that directory's parent.
Signed-off-by: Jim Broadus <jbroadus@xevo.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
clang/lib/Driver/Driver.cpp | 8 +++++++-
1 file changed, 7 insertions(+), 1 deletion(-)
--- a/clang/lib/Driver/Driver.cpp
+++ b/clang/lib/Driver/Driver.cpp
@@ -112,7 +112,13 @@ std::string Driver::GetResourcesPath(Str
// With a static-library build of libclang, LibClangPath will contain the
// path of the embedding binary, which for LLVM binaries will be in bin/.
// ../lib gets us to lib/ in both cases.
- P = llvm::sys::path::parent_path(Dir);
+ Dir = std::string(llvm::sys::path::parent_path(Dir));
+
+ // OE cross toolchains are installed, by default, in a subdir of bin.
+ if (llvm::sys::path::filename(Dir) == "bin") {
+ Dir = std::string(llvm::sys::path::parent_path(Dir));
+ }
+ P = Dir;
llvm::sys::path::append(P, Twine("lib") + CLANG_LIBDIR_SUFFIX, "clang",
CLANG_VERSION_STRING);
}
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