Android：链接到预构建的静态库

Question

libcoinblas.a   libcoinlapack.a   libcoinmetis.a   libcoinmumps.a   libipopt.a
libcoinblas.so  libcoinlapack.so  libcoinmetis.so  libcoinmumps.so  libipopt.so

Lapack requires Blas
Mumps  requires Blas and Metis
Ipopt  requires Mumps, Metis, and Lapack

在共享的情况下，我使用的是cmake文件

cmake_minimum_required(VERSION 3.4.1)

add_library( native-lib
             SHARED
             src/main/cpp/cpp_example.cpp
             src/main/cpp/MyNLP.cpp)

# Add dependent libraries
add_library(blas SHARED IMPORTED)
set_property(TARGET blas PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinblas.so)

add_library(lapack SHARED IMPORTED)
set_property(TARGET lapack PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinlapack.so)

add_library(metis SHARED IMPORTED)
set_property(TARGET metis PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmetis.so)

add_library(mumps SHARED IMPORTED)
set_property(TARGET mumps PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmumps.so)

add_library(ipopt SHARED IMPORTED)
set_property(TARGET ipopt PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libipopt.so)

# Location of header files
include_directories(${CMAKE_SOURCE_DIR}/libs/include
                    ${CMAKE_SOURCE_DIR}/libs/include/ThirdParty)

target_link_libraries( native-lib

                       blas
                       lapack
                       metis
                       mumps
                       ipopt
                       )

在静态情况下

cmake_minimum_required(VERSION 3.4.1)

add_library( native-lib
             SHARED
             src/main/cpp/cpp_example.cpp
             src/main/cpp/MyNLP.cpp)

# Add dependent libraries
add_library(blas STATIC IMPORTED)
set_property(TARGET blas PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinblas.a)

add_library(lapack STATIC IMPORTED)
set_property(TARGET lapack PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinlapack.a)

add_library(metis STATIC IMPORTED)
set_property(TARGET metis PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmetis.a)

add_library(mumps STATIC IMPORTED)
set_property(TARGET mumps PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libcoinmumps.a)

add_library(ipopt STATIC IMPORTED)
set_property(TARGET ipopt PROPERTY IMPORTED_LOCATION ${CMAKE_SOURCE_DIR}/libs/${ANDROID_ABI}/libipopt.a)

# Location of header files
include_directories(${CMAKE_SOURCE_DIR}/libs/include
                    ${CMAKE_SOURCE_DIR}/libs/include/ThirdParty)

target_link_libraries( native-lib

                       blas
                       lapack
                       metis
                       mumps
                       ipopt
                       )

我认为我只需要更改如何从

add_library(libxxx SHARED IMPORTED)
set_property(TARGET libxxx PROPERTY ... libxxx.so)

add_library(libxxx STATIC IMPORTED)
set_property(TARGET libxxx PROPERTY ... libxxx.a)

undefined reference to xxx 

../../../../libs/arm64-v8a/libipopt.a(IpLapack.o): In function `Ipopt::IpLapackDppsv(int, int, double const*, double*, int, int&)':
IpLapack.cpp:(.text+0x3d4): undefined reference to `dppsv_'

失败：cmd.exe/c“cd.&&clang++.exe-target=aarch64-none-linux-android-gcc-toolchain=c://android/android-sdk/ndk-bundle/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64--sysroot=sysroot-fpic-isystem c：stack-protector-strong-no-canonical-prefixes-wa,--noexecstack-wformat-werror=format-security-o0-fno-limit-debug-info-wl,--exclude-libs,libgcc.a-wl,--exclude-libs,libatomic.a,--exclude-libs,libatomic.a,-sysroot c：/android/android-sdk/ndk-bundle/platforms/android-23/arch-arm64-wl,--build-id-wl l,-z,now-shared-wl,-soname,libnative-lib.so-o..........\build\mediumates\cmake\debug\obj\arm64-v8a\libnative-lib.so cmakefiles/native-lib.dir/src/main/cpp/cpp_example.cpp.o cmakefiles/native-lib.dir/src/main/cpp/mynlp.cpp.o libcoinblas.a libcoinlapack.a libcoinmetis.a libcoinmumps.a libipopt.a-latomic-lm“c：/android/android-sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/arm64-v8a/libgnustl_static.a”&&cd.“

请注意，我对上面的路径进行了一点消毒，以便它们稍微易读，但在最后，您可以看到库是按以下顺序列出的

libcoinblas.a libcoinlapack.a libcoinmetis.a libcoinmumps.a libipopt.a

我还尝试将link命令从target_link_library更改为link_library:

link_libraries(native-lib blas lapack metis mumps ipopt)

但这也失败了。出于某种原因，在本例中，link命令甚至不包括它应该链接的库：

失败：cmd.exe/c“cd.&&c:\android\android-sdk\ndk-bundle\toolchains\llvm\prebuild\windows-x86_64\bin\clang++.exe-target=aarch64-none-linux-android=c://android/android-sdk/ndk-bundle/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64-system c：undle/sysroot/usr/include/aarch64-linux-android-d__android_api__=23-g-dandroid-ffunction-sections-funwind-tables-fstack-no-canonical-prefixes-wa,--noexecstack-wformat-werror=format-security-o0-fno-limit-debug-info-wl,--exclude-libs，libgcc.a-wl,--exclude-libs，libatomic.a-sysroot c：-warn-shared-textel-wl,--fatal-warnings-wl,--no-undefined-wl,-z,noexecstack-qunused-arguments-wl,-z,relro-wl,-z,now-shared-wl,-soname,libnative-lib.so-o..........\build\meditiates\cmake\debug\obj\arm64-v8a\libnative-lib.so CMakeFiles/native-lib.dir/src/main/cpp/cpp_example.cpp.o cmakefiles/native-lib.dir/src/main/cpp/mynlp.cpp.o cmakefiles/native-lib.dir/src/main/cpp/mynlp.cpp.o latomic-lm“c：/android/android-sdk/ndk-bundle/sources/cxx-stl/gnu-libstdc++/4.9/libs/arm64-v8a/libgnustl_static.a”

Answer 1

您的库是相互依赖的：

Lapack requires Blas
Mumps  requires Blas and Metis
Ipopt  requires Mumps, Metis, and Lapack

这意味着链接它们的顺序应该是相反的：

ipopt
mumps
metis
lapack
blas 

如果您不想在找出最佳顺序上浪费时间，而是让链接器来查找（这可能会显著降低构建速度），可以使用

您还可以通过IMPORTED_LINK_INTERFACE_LIBRARIES教CMake关于导入的静态lib之间的依赖关系，例如。

set_target_properties(lapack 
  PROPERTIES IMPORTED_LINK_INTERFACE_LIBRARIES 
  blas)

诸如此类。

这将翻译

target_link_libraries( native-lib
                   blas
                   lapack
                   )

clang++ -o libnative-lib.so … libblas.a libnlapack.a libblas.a