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Nathan Chancellor 4d0d438095 kernel.mk: Support kernels that use LTO ... Google added support for LTO + CFI in the Pixel 3 kernel, which requires not only Clang but a couple of additional binaries, namely llvm-ar and llvm-dis for IR generation. Google expects these binaries to be in PATH according to their definitions and the build.config.common file: https://android.googlesource.com/kernel/msm/+/android-9.0.0_r0.31/Makefile#637 https://android.googlesource.com/kernel/msm/+/android-9.0.0_r0.31/build.config.common However, kernel.mk does not add the LLVM bin directory to PATH so the build fails because the binaries can't be found. We could add LLVM_AR and LLVM_DIS to the make commands like CC and CROSS_COMPILE; however, adding the bin directory to PATH is a more sustainable solution as Google might require new binaries in the future. Additionally, LTO needs access to the LLVMgold library so it needs to be available in LD_LIBRARY_PATH. Add a PATH_OVERRIDE variable that will set up PATH and LD_LIBRARY_PATH with the bin and lib64 folders from the requested LLVM toolchain respectively when building with Clang. This won't affect kernels that don't use LTO like Wahoo. Change-Id: Ib16fa0d3180de2f96accb2f7648b07a017f8f98b Signed-off-by: Nathan Chancellor <natechancellor@gmail.com>		6 years ago
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core	qcom_target: Add wlan-caf to CFI paths	6 years ago
soong	lineage: Dynamically generate kernel headers using lineage generator	6 years ago
target/product	lineage: Make sure to consider our product makefiles	6 years ago
tasks	kernel.mk: Support kernels that use LTO	6 years ago
templates	extract-files: Bring back old behavior for SRC	7 years ago
tools	Add CDEX support for boot JAR files	6 years ago
envsetup.sh	envsetup: Add githubremote function	6 years ago