Ubuntu16 编译源码出错 unsupported reloc 43

错误如下

prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6//x86_64-linux/include/c++/4.6/bits/basic_string.h:270: error: unsupported reloc 43
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6//x86_64-linux/include/c++/4.6/bits/basic_string.h:270: error: unsupported reloc 43
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6//x86_64-linux/include/c++/4.6/bits/basic_string.h:235: error: unsupported reloc 43
prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.6//x86_64-linux/include/c++/4.6/bits/basic_string.h:235: error: unsupported reloc 43
libnativehelper/JNIHelp.cpp:310: error: unsupported reloc 43
libnativehelper/JNIHelp.cpp:311: error: unsupported reloc 43
libnativehelper/JNIHelp.cpp:332: error: unsupported reloc 43
libnativehelper/JNIHelp.cpp:322: error: unsupported reloc 43
libnativehelper/JNIHelp.cpp:338: error: unsupported reloc 43
libnativehelper/JniConstants.cpp:89: error: unsupported reloc 43
libnativehelper/JniConstants.cpp:90: error: unsupported reloc 43

解决方法（一）

修改 build/core/clang/HOST_x86_common.mk

diff --git a/core/clang/HOST_x86_common.mk b/core/clang/HOST_x86_common.mk
index 0241cb6..77547b7 100644
--- a/core/clang/HOST_x86_common.mk
+++ b/core/clang/HOST_x86_common.mk
@@ -8,6 +8,7 @@ ifeq ($(HOST_OS),linux)
 CLANG_CONFIG_x86_LINUX_HOST_EXTRA_ASFLAGS := \
   --gcc-toolchain=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG) \
   --sysroot=$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/sysroot \
+  -B$($(clang_2nd_arch_prefix)HOST_TOOLCHAIN_FOR_CLANG)/x86_64-linux/bin \
   -no-integrated-as
 
 CLANG_CONFIG_x86_LINUX_HOST_EXTRA_CFLAGS := \

 但是对我而言 错误仍在

解决方法（二）

修改 art/build/Android.common_build.mk

# Host.
ART_HOST_CLANG := false
ifneq ($(WITHOUT_HOST_CLANG),true)
  # By default, host builds use clang for better warnings.
  ART_HOST_CLANG := true
endif

改为

# Host.
ART_HOST_CLANG := false
ifeq ($(WITHOUT_HOST_CLANG),false)
  # By default, host builds use clang for better warnings.
  ART_HOST_CLANG := true
endif

仍然不起作用

解决方法（三）

cp /usr/bin/ld.gold prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.11-4.8/x86_64-linux/bin/ld

这个之后，编译通过。

#####################################################################################################################3

Tried @ShawnMilo 's workaround:

v8worker# find . -name ld.gold
./v8/third_party/binutils/Linux_x64/Release/bin/ld.gold

v8worker# mv ./v8/third_party/binutils/Linux_x64/Release/bin/ld.gold ./v8/third_party/binutils/Linux_x64/Release/bin/ld.gold.backup

v8worker# ln -s /usr/bin/ld.gold ./v8/third_party/binutils/Linux_x64/Release/bin/ld.gold


https://github.com/ry/v8worker/issues/41


#################################################################################################################################

unsupported reloc 42 编译错误处理

1. out/host/linux-x86/obj/SHARED_LIBRARIES/libart_intermediates/arch/x86_64/quick_entrypoints_x86_64.o:function art_quick_deoptimize:
   
2. error: unsupported reloc 42
   
3. clang: error: linker command failed with exit code 1 (use -v to see invocation)
   

1、将prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld 备份

mv prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld.bak

2、使用soft link，链接到全局ld

ln -s /usr/bin/ld.gold prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld

查看：

1. zyf@zyf-HP-Pavilion-m4-Notebook-PC:~/work/6580pet/MTK6580_M_V2.34_base_pet$ ls -l prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld
   
2. lrwxrwxrwx 1 zyf zyf 16 3月 17 18:17 prebuilts/gcc/linux-x86/host/x86_64-linux-glibc2.15-4.8/x86_64-linux/bin/ld -> /usr/bin/ld.gold