-Wl,--no-undefined

博客提到添加 -Wl,--no-undefined 进行编译,若 so 里存在未定义符号,编译将无法通过,这是一种在编译过程中检查未定义符号的方法。

加上-Wl,--no-undefined

如果so里有未定义符号,这编译不通过

FAILED: out_system/soong/.intermediates/frameworks/base/libs/hwui/libhwui/android_arm64_armv8-2a_cortex-a55_shared/1873ef05e1e4587074a7017bfd80ab7a/unstripped/libhwui.so prebuilts/clang/host/linux-x86/clang-r522817/bin/clang++ out_system/soong/.intermediates/bionic/libc/crtbegin_so/android_arm64_armv8-2a_cortex-a55/crtbegin_so.o @out_system/soong/.intermediates/frameworks/base/libs/hwui/libhwui/android_arm64_armv8-2a_cortex-a55_shared/1873ef05e1e4587074a7017bfd80ab7a/unstripped/libhwui.so.rsp out_system/soong/.intermediates/bionic/libc/crtend_so/android_arm64_armv8-2a_cortex-a55/crtend_so.o out_system/soong/.intermediates/bionic/libc/crt_pad_segment/android_arm64_armv8-2a_cortex-a55/crt_pad_segment.o -o out_system/soong/.intermediates/frameworks/base/libs/hwui/libhwui/android_arm64_armv8-2a_cortex-a55_shared/1873ef05e1e4587074a7017bfd80ab7a/unstripped/libhwui.so -target aarch64-linux-android10000 -Wl,-z,noexecstack -Wl,-z,relro -Wl,-z,now -Wl,--build-id=md5 -Wl,--fatal-warnings -Wl,--no-undefined-version -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_stripped.a -Wl,--exclude-libs,libunwind_llvm.a -Wl,--exclude-libs,libunwind.a -fuse-ld=lld -Wl,--icf=safe -Wl,--no-demangle -Wl,--compress-debug-sections=zstd -Wl,--pack-dyn-relocs=android+relr -Wl,--no-undefined -Wl,-z,separate-code -Wl,-z,separate-loadable-segments -Wl,-z,max-page-size=16384 -nostdlib -Wl,--gc-sections -shared -Wl,-soname,libhwui.so -fprofile-sample-use=toolchain/pgo-profiles/sampling/libhwui_arm64.afdo -fprofile-sample-accurate -Wl,-mllvm,-no-warn-sample-unused=true -z max-page-size=0x200000 -Wl,--version-script,frameworks/base/libs/hwui/libhwui.map.txt -flto=thin -fsplit-lto-unit -Wl,-plugin-opt,-import-instr-limit=40 -Wl,-mllvm,-regalloc-enable-advisor=release -Wl,--exclude-libs=libclang_rt.builtins-aarch64-android.a -Wl,--exclude-libs=libclang_rt.ubsan_minimal-aarch64-android.a ld.lld: error: out_system/soong/.intermediates/frameworks/base/libs/hwui/libhwui/android_arm64_armv8-2a_cortex-
08-01
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