ANDROID: arm64: pass code model to LLVMgold

With LTO_CLANG, even if we pass -mcmodel to clang, the flag isn't
stored in the generated LLVM IR, which means it won't be used for
the actual compilation at link time. Therefore, the flag needs to
be passed to LLVMgold to actually take effect.

Bug: 62093296
Bug: 67506682
Change-Id: I5cd21f97c800466f1bce039df56101ce4087ae20
Signed-off-by: Sami Tolvanen <samitolvanen@google.com>

diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile
index 90a387a0d0132f60944e3659f7d1d6bca3a1e273..e64f5f0c5fd7cc77782708a89d7d9bc456ccceb4 100644 (file)
--- a/arch/arm64/Makefile
+++ b/arch/arm64/Makefile
@@ -102,6 +102,10 @@ CHECKFLAGS += -D__aarch64__ -m64
 
 ifeq ($(CONFIG_ARM64_MODULE_CMODEL_LARGE), y)
 KBUILD_CFLAGS_MODULE   += -mcmodel=large
+ifeq ($(CONFIG_LTO_CLANG), y)
+# Code model is not stored in LLVM IR, so we need to pass it also to LLVMgold
+LDFLAGS                += -plugin-opt=-code-model=large
+endif
 endif
 
 ifeq ($(CONFIG_ARM64_MODULE_PLTS),y)