classes/toolchain/clang: Add placeholder for dynamic linker in cross-canadian packages

clang-cross-canadian is just symlinking into nativesdk-clang unlike gcc which
has separate binaries and they have inbuilt dynamic linker specs. To help clang
built cross-canadian binaries add it via cmdline option here, cross-canadian
binaries are only usable on installed SDKs, and these paths get re-written with
correct SDK specific linker during SDK install relocation process.

This helps clang built cross-canadian tools e.g. from binutils-cross-canadian
be relocated correctly on SDK install.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
Signed-off-by: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

diff --git a/meta/classes/toolchain/clang.bbclass b/meta/classes/toolchain/clang.bbclass
index b4a1c180f6ae03b757353aeefa831622e9118ff8..9a3cd0e5849bbd217238e0fb719c85f7123ab89d 100644 (file)
--- a/meta/classes/toolchain/clang.bbclass
+++ b/meta/classes/toolchain/clang.bbclass
@@ -32,6 +32,7 @@ TUNE_CCARGS += "${@bb.utils.contains("DISTRO_FEATURES", "usrmerge", " --dyld-pre
 
 LDFLAGS:append:class-nativesdk:x86-64 = " -Wl,-dynamic-linker,${base_libdir}/ld-linux-x86-64.so.2"
 LDFLAGS:append:class-nativesdk:aarch64 = " -Wl,-dynamic-linker,${base_libdir}/ld-linux-aarch64.so.1"
+LDFLAGS:append:class-cross-canadian = " -Wl,-dynamic-linker,${base_libdir}/placeholder/to/be/rewritten/by/sdk/installer"
 
 # do_populate_sysroot needs STRIP, do_package_qa needs OBJDUMP
 POPULATESYSROOTDEPS:append:class-target = " llvm-native:do_populate_sysroot"