Android12 GMS移植mianline 编译报错/dexdump: error: Target of symlink is...
问题现象：
Android12 版本，移植mainline 进系统，编译报错如下：
[ 48% 66707/137461] symlink out/soong/.intermediates/prebuilts/module_sdk/art/current/host-exports/prebuilt_dex2oatd/linux_glibc_x86_64/dex2oatd
[ 48% 66708/137461] symlink out/soong/.intermediates/prebuilts/module_sdk/art/current/host-exports/prebuilt_dexdump/linux_glibc_x86_64/dexdump
[ 48% 66709/137461] //external/ppp/pppd:pppd clang magic.c
[ 48% 66710/137461] //prebuilts/module_sdk/art/current/host-exports:prebuilt_dexdump install dexdump
[ 48% 66711/137461] //hardware/libhardware/modules/power:power.default clang power.c
[ 48% 66712/137461] symlink out/soong/.intermediates/prebuilts/module_sdk/art/current/host-exports/prebuilt_hiddenapi/linux_glibc_x86_64/hiddenapi
[ 48% 66713/137461] //hardware/libhardware/modules/power:power.default clang power.c
[ 48% 66714/137461] compile out/soong/.primary/pom2bp/obj/pom2bp.a
[ 48% 66715/137461] //prebuilts/module_sdk/art/current/host-exports:prebuilt_hiddenapi install hiddenapi
[ 48% 66716/137461] host Prebuilt: dexdump (out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump)
FAILED: out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump
/bin/bash -c "(rm -f out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump ) && (if [ -h out/soong/host/linux-x86/bin/dexdump ]; then ln -s \$(realpath out/soong/host/linux-x86/bin/dexdump) out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump; else cp out/soong/host/linux-x86/bin/dexdump out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump; fi ) && ([ -x out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump ] || ( echo -e \"\\033[1mout/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump: \\033[31merror:\\033[0m\\033[1m\" 'Target of symlink is not executable'\"\\033[0m\" >&2; false ) )"
out/host/linux-x86/obj/EXECUTABLES/dexdump_intermediates/dexdump: error: Target of symlink is not executable
[ 48% 66717/137461] compile out/soong/.primary/pom2mk/obj/pom2mk.a
[ 48% 66718/137461] //external/ppp/pppd:pppopptp-android clang plugins/pppopptp-android/pppopptp-android.c
[ 48% 66719/137461] //external/ppp/pppd:pppd clang demand.c
[ 48% 66720/137461] //external/ppp/pppd:pppol2tp-android clang plugins/pppol2tp-android/pppol2tp-android.c
[ 48% 66721/137461] //external/ppp/pppd:pppd clang fsm.c
[ 48% 66722/137461] //external/ppp/pppd:pppd clang upap.c
解决方案：
修改环境变量值：
export SOONG_CONFIG_art_module_source_build=true
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