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Revert "ANDROID: Kbuild, LLVMLinux: allow overriding clang target triple"

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This reverts commit e145f7b10374662f03889c2dea0fdc14df7f1371.

AOSP's distribution of GNU binutils always had a curious target triple
prefix on the binaries.  Now that GNU binutils is deprecated for Android
Common Kernels, we can now remove this out of tree workaround. Now
building Android kernels with LLVM matches upstream (see
Documentation/kbuild/llvm.rst).

Bug: 118439987
Bug: 120440614
Bug: 141693040
Signed-off-by: Nick Desaulniers <ndesaulniers@google.com>
Change-Id: Iecaa3264a440f795f2f3a44bdf74fe28ad4ed1cc
Signed-off-by: Sukrut4778 <sukrut4778@gmail.com>
Signed-off-by: Cyber Knight <cyberknight755@gmail.com>
This commit is contained in:
Nick Desaulniers
2020-11-10 11:37:31 -08:00
committed by Debayan Kar
parent 1c525446f9
commit b80a322273
4 changed files with 4 additions and 13 deletions
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6
Makefile
View File

@@ -555,11 +555,7 @@ endif
ifeq ($(cc-name),clang)
ifneq ($(CROSS_COMPILE),)
CLANG_TRIPLE ?= $(CROSS_COMPILE)
CLANG_FLAGS += --target=$(notdir $(CLANG_TRIPLE:%-=%))
ifeq ($(shell $(srctree)/scripts/clang-android.sh $(CC) $(CLANG_FLAGS)), y)
$(error "Clang with Android --target detected. Did you specify CLANG_TRIPLE?")
endif
CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE)elfedit))
CLANG_FLAGS += --prefix=$(GCC_TOOLCHAIN_DIR)$(notdir $(CROSS_COMPILE))
GCC_TOOLCHAIN := $(realpath $(GCC_TOOLCHAIN_DIR)/..)

4
build.config.aarch64
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@@ -1,7 +1,7 @@
ARCH=arm64
CLANG_TRIPLE=aarch64-linux-gnu-
CROSS_COMPILE=aarch64-linux-androidkernel-
CROSS_COMPILE=aarch64-linux-gnu-
CROSS_COMPILE_COMPAT=arm-linux-gnueabi-
LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gcc/linux-x86/aarch64/aarch64-linux-android-4.9/bin
FILES="

3
build.config.x86_64
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@@ -1,7 +1,6 @@
ARCH=x86_64
CLANG_TRIPLE=x86_64-linux-gnu-
CROSS_COMPILE=x86_64-linux-androidkernel-
CROSS_COMPILE=x86_64-linux-gnu-
LINUX_GCC_CROSS_COMPILE_PREBUILTS_BIN=prebuilts/gcc/linux-x86/x86/x86_64-linux-android-4.9/bin
FILES="

4
scripts/clang-android.sh
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@@ -1,4 +0,0 @@
#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
$* -dM -E - </dev/null 2>&1 | grep -q __ANDROID__ && echo "y"