交叉编译iot hub sdk时链接错误
Linking error wihle crosscompiling iothub sdk
我正在尝试为 ARM 网关交叉编译用 C 编写的 azure iothub sdk。
此网关与其交叉编译器一起提供。
我需要 iothub 的库和包含以便在网关上进行开发。
我已经为 thar ARM 设备下载并交叉编译了 zlib、curl、openssl 和 libuuid，没有出现任何问题。
目前我停留在交叉编译的 linking 阶段。
为了编译 sdk，使用了 Cmake，所以我提供了一个自定义工具链文件来设置我的开发环境的路径和目录。
这是系统配置：
- OS: Linux 2.6.36
- 架构：ARM9
- Azure IoTHub SDK 版本：2017-11-03
工具链文件 (toolchain.cmake):
INCLUDE(CMakeForceCompiler)
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_C_COMPILER /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc)
set(CMAKE_CXX_COMPILER /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++)
set(CMAKE_C_FLAGS "${CMAKE_CC_FLAGS} -L/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib -ldl -lcrypto -lssl")
#set(CMAKE_C_FLAGS "--std=c99 ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -L/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib -ldl -lcrypto -lssl")
set(CXX_FLAG_CXX11 "--std=c++11 ${CMAKE_CXX_FLAGS}")
set(CMAKE_FIND_ROOT_PATH /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi)
#OpenSSL path
set(OPENSSL_ROOT_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/ssl)
set(OPENSSL_CRYPTO_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcrypto.so.1.0.0)
#set(OPENSSL_CRYPTO_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/armv4t/usr/lib/libcrypt.a)
set(OPENSSL_SSL_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libssl.a)
set(OPENSSL_INCLUDE_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/include)
#libcurl path
set(CURL_INCLUDE_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/include/curl)
set(CURL_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
为了编译 sdk，我 运行 按照 /sdk/directory/cmake/ 中的命令：
cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake -DCMAKE_INSTALL_PREFIX=/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/
cmake --build .
第一个命令 returns 给我这个输出：
-- The C compiler identification is GNU 4.4.1
-- The CXX compiler identification is GNU 4.4.1
-- Check for working C compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc
-- Check for working C compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for include file stdint.h
-- Looking for include file stdint.h - found
-- Looking for include file stdbool.h
-- Looking for include file stdbool.h - found
-- target architecture: ARM
-- Found OpenSSL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcrypto.so.1.0.0 (found version "1.0.2m")
-- Cross compiling not using pkg-config
-- Found CURL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a
-- Found CURL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a
-- target architecture: ARM
-- target architecture: ARM
-- target architecture: ARM
-- iothub architecture: ARM
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ubuntu/azure-iot-sdk-c/cmake
我遇到了第二个问题，它在 linking 文件时在进程的 20% 处出现错误，这是输出：
[ 19%] Built target aziotsharedutil
Scanning dependencies of target iot_c_utility
[ 20%] Building C object c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/iot_c_utility.c.o
[ 20%] Linking C executable iot_c_utility
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function log_ERR_get_error': tlsio_openssl.c:(.text+0x1198): undefined reference toERR_get_error'
tlsio_openssl.c:(.text+0x11d4): undefined reference to ERR_error_string' tlsio_openssl.c:(.text+0x1224): undefined reference toERR_get_error'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_dynamic_locks_uninstall': tlsio_openssl.c:(.text+0x1450): undefined reference toCRYPTO_set_dynlock_create_callback'
tlsio_openssl.c:(.text+0x1458): undefined reference to CRYPTO_set_dynlock_lock_callback' tlsio_openssl.c:(.text+0x1460): undefined reference toCRYPTO_set_dynlock_destroy_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_dynamic_locks_install': tlsio_openssl.c:(.text+0x1484): undefined reference toCRYPTO_set_dynlock_destroy_callback'
tlsio_openssl.c:(.text+0x1494): undefined reference to CRYPTO_set_dynlock_lock_callback' tlsio_openssl.c:(.text+0x14a4): undefined reference toCRYPTO_set_dynlock_create_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_static_locks_lock_unlock_cb': tlsio_openssl.c:(.text+0x14ec): undefined reference toCRYPTO_num_locks'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_static_locks_uninstall': tlsio_openssl.c:(.text+0x15f4): undefined reference toCRYPTO_set_locking_callback'
tlsio_openssl.c:(.text+0x1658): undefined reference to CRYPTO_num_locks' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionopenssl_static_locks_install':
tlsio_openssl.c:(.text+0x1790): undefined reference to CRYPTO_num_locks' tlsio_openssl.c:(.text+0x18ec): undefined reference toCRYPTO_num_locks'
tlsio_openssl.c:(.text+0x1908): undefined reference to CRYPTO_num_locks' tlsio_openssl.c:(.text+0x1980): undefined reference toCRYPTO_set_locking_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function write_outgoing_bytes': tlsio_openssl.c:(.text+0x1b60): undefined reference toBIO_ctrl_pending'
tlsio_openssl.c:(.text+0x1c18): undefined reference to BIO_read' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionsend_handshake_bytes':
tlsio_openssl.c:(.text+0x1d38): undefined reference to ERR_clear_error' tlsio_openssl.c:(.text+0x1d48): undefined reference toSSL_do_handshake'
tlsio_openssl.c:(.text+0x1d70): undefined reference to SSL_get_error' tlsio_openssl.c:(.text+0x1db8): undefined reference toERR_get_error'
tlsio_openssl.c:(.text+0x1dc8): undefined reference to ERR_error_string' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiondecode_ssl_received_bytes':
tlsio_openssl.c:(.text+0x21d0): undefined reference to SSL_read' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionon_underlying_io_bytes_received':
tlsio_openssl.c:(.text+0x22e8): undefined reference to BIO_write' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionclose_openssl_instance':
tlsio_openssl.c:(.text+0x241c): undefined reference to SSL_free' tlsio_openssl.c:(.text+0x2448): undefined reference toSSL_CTX_free'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function add_certificate_to_store': tlsio_openssl.c:(.text+0x249c): undefined reference toSSL_CTX_get_cert_store'
tlsio_openssl.c:(.text+0x24d0): undefined reference to BIO_s_mem' tlsio_openssl.c:(.text+0x2508): undefined reference toBIO_new'
tlsio_openssl.c:(.text+0x2544): undefined reference to BIO_puts' tlsio_openssl.c:(.text+0x25b4): undefined reference toX509_STORE_add_cert'
tlsio_openssl.c:(.text+0x25c8): undefined reference to X509_free' tlsio_openssl.c:(.text+0x25e4): undefined reference toX509_free'
tlsio_openssl.c:(.text+0x2600): undefined reference to PEM_read_bio_X509' tlsio_openssl.c:(.text+0x263c): undefined reference toBIO_free'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function create_openssl_instance': tlsio_openssl.c:(.text+0x26b0): undefined reference toTLSv1_2_method'
tlsio_openssl.c:(.text+0x26d0): undefined reference to TLSv1_1_method' tlsio_openssl.c:(.text+0x26e0): undefined reference toTLSv1_method'
tlsio_openssl.c:(.text+0x26f0): undefined reference to SSL_CTX_new' tlsio_openssl.c:(.text+0x2758): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x27e4): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2870): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x2904): undefined reference to SSL_CTX_set_cert_verify_callback' tlsio_openssl.c:(.text+0x2908): undefined reference toBIO_s_mem'
tlsio_openssl.c:(.text+0x2914): undefined reference to BIO_new' tlsio_openssl.c:(.text+0x2940): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x296c): undefined reference to BIO_s_mem' tlsio_openssl.c:(.text+0x2978): undefined reference toBIO_new'
tlsio_openssl.c:(.text+0x29a4): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x29b4): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x29f8): undefined reference to BIO_ctrl' tlsio_openssl.c:(.text+0x2a20): undefined reference toBIO_ctrl'
tlsio_openssl.c:(.text+0x2a3c): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x2a4c): undefined reference toBIO_free'
tlsio_openssl.c:(.text+0x2a5c): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2ae0): undefined reference toSSL_CTX_set_verify'
tlsio_openssl.c:(.text+0x2af0): undefined reference to SSL_CTX_set_default_verify_paths' tlsio_openssl.c:(.text+0x2b60): undefined reference toSSL_new'
tlsio_openssl.c:(.text+0x2b8c): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x2b9c): undefined reference toBIO_free'
tlsio_openssl.c:(.text+0x2bac): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2bfc): undefined reference toSSL_set_bio'
tlsio_openssl.c:(.text+0x2c0c): undefined reference to SSL_set_connect_state' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_init':
tlsio_openssl.c:(.text+0x2c88): undefined reference to SSL_library_init' tlsio_openssl.c:(.text+0x2c8c): undefined reference toSSL_load_error_strings'
tlsio_openssl.c:(.text+0x2c90): undefined reference to ERR_load_BIO_strings' tlsio_openssl.c:(.text+0x2c94): undefined reference toOPENSSL_add_all_algorithms_noconf'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function tlsio_openssl_deinit': tlsio_openssl.c:(.text+0x2d40): undefined reference toFIPS_mode_set'
tlsio_openssl.c:(.text+0x2d48): undefined reference to CRYPTO_set_locking_callback' tlsio_openssl.c:(.text+0x2d50): undefined reference toCRYPTO_set_id_callback'
tlsio_openssl.c:(.text+0x2d54): undefined reference to ERR_free_strings' tlsio_openssl.c:(.text+0x2d58): undefined reference toEVP_cleanup'
tlsio_openssl.c:(.text+0x2d60): undefined reference to ERR_remove_thread_state' tlsio_openssl.c:(.text+0x2d64): undefined reference toSSL_COMP_free_compression_methods'
tlsio_openssl.c:(.text+0x2d68): undefined reference to CRYPTO_cleanup_all_ex_data' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_send':
tlsio_openssl.c:(.text+0x38e4): undefined reference to SSL_write' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_setoption':
tlsio_openssl.c:(.text+0x423c): undefined reference to SSL_CTX_set_cert_verify_callback' tlsio_openssl.c:(.text+0x42ac): undefined reference toSSL_CTX_set_cert_verify_callback'
../../libaziotsharedutil.a(x509_openssl.c.o): In function log_ERR_get_error': x509_openssl.c:(.text+0x80): undefined reference toERR_get_error'
x509_openssl.c:(.text+0xbc): undefined reference to ERR_error_string' x509_openssl.c:(.text+0x10c): undefined reference toERR_get_error'
../../libaziotsharedutil.a(x509_openssl.c.o): In function load_certificate_chain': x509_openssl.c:(.text+0x170): undefined reference toBIO_new_mem_buf'
x509_openssl.c:(.text+0x1b4): undefined reference to PEM_read_bio_X509_AUX' x509_openssl.c:(.text+0x1f0): undefined reference toSSL_CTX_use_certificate'
x509_openssl.c:(.text+0x250): undefined reference to sk_pop_free' x509_openssl.c:(.text+0x274): undefined reference toSSL_CTX_ctrl'
x509_openssl.c:(.text+0x288): undefined reference to X509_free' x509_openssl.c:(.text+0x2ac): undefined reference toPEM_read_bio_X509'
x509_openssl.c:(.text+0x2d0): undefined reference to ERR_peek_last_error' x509_openssl.c:(.text+0x300): undefined reference toERR_clear_error'
x509_openssl.c:(.text+0x31c): undefined reference to X509_free' x509_openssl.c:(.text+0x324): undefined reference toBIO_free'
x509_openssl.c:(.text+0x344): undefined reference to X509_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionload_alias_key_cert':
x509_openssl.c:(.text+0x374): undefined reference to BIO_new_mem_buf' x509_openssl.c:(.text+0x3b8): undefined reference toPEM_read_bio_PrivateKey'
x509_openssl.c:(.text+0x3f4): undefined reference to SSL_CTX_use_PrivateKey' x509_openssl.c:(.text+0x470): undefined reference toEVP_PKEY_free'
x509_openssl.c:(.text+0x478): undefined reference to BIO_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionload_private_key_RSA':
x509_openssl.c:(.text+0x4c8): undefined reference to BIO_new_mem_buf' x509_openssl.c:(.text+0x50c): undefined reference toPEM_read_bio_RSAPrivateKey'
x509_openssl.c:(.text+0x548): undefined reference to SSL_CTX_use_RSAPrivateKey' x509_openssl.c:(.text+0x580): undefined reference toRSA_free'
x509_openssl.c:(.text+0x588): undefined reference to BIO_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionx509_openssl_add_certificates':
x509_openssl.c:(.text+0xa1c): undefined reference to SSL_CTX_get_cert_store' x509_openssl.c:(.text+0xa50): undefined reference toBIO_s_mem'
x509_openssl.c:(.text+0xa88): undefined reference to BIO_new' x509_openssl.c:(.text+0xac4): undefined reference toBIO_puts'
x509_openssl.c:(.text+0xb1c): undefined reference to X509_STORE_add_cert' x509_openssl.c:(.text+0xb2c): undefined reference toERR_peek_error'
x509_openssl.c:(.text+0xb60): undefined reference to X509_free' x509_openssl.c:(.text+0xb6c): undefined reference toX509_free'
x509_openssl.c:(.text+0xb88): undefined reference to PEM_read_bio_X509' x509_openssl.c:(.text+0xbc4): undefined reference toBIO_free'
../../libaziotsharedutil.a(crt_abstractions.c.o): In function splitFloatString': crt_abstractions.c:(.text+0x10b8): undefined reference topow'
crt_abstractions.c:(.text+0x1150): undefined reference to pow' ../../libaziotsharedutil.a(crt_abstractions.c.o): In functionstrtof_s':
crt_abstractions.c:(.text+0x127c): undefined reference to pow' ../../libaziotsharedutil.a(crt_abstractions.c.o): In functionstrtold_s':
crt_abstractions.c:(.text+0x158c): undefined reference to `pow'
collect2: ld returned 1 exit status
c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/build.make:95: set di istruzioni per l'obiettivo "c-utility/samples/iot_c_utility/iot_c_utility" non riuscito
make[2]: *** [c-utility/samples/iot_c_utility/iot_c_utility] Errore 1
CMakeFiles/Makefile2:1056: set di istruzioni per l'obiettivo "c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/all" non riuscito
make[1]: *** [c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/all] Errore 2
Makefile:140: set di istruzioni per l'obiettivo "all" non riuscito
make: *** [all] Errore 2
我试图找出我缺少的库或 link 指令，因为我认为我没有以正确的方式引用已编译的库，但我找不到解决方案呢。
有没有人已经解决了类似的问题？
使用 VERBOSE=1 从 linker 获取输出。
您似乎缺少 link 针对 libssl 和 libcrypto
我正在尝试为 ARM 网关交叉编译用 C 编写的 azure iothub sdk。 此网关与其交叉编译器一起提供。
我需要 iothub 的库和包含以便在网关上进行开发。 我已经为 thar ARM 设备下载并交叉编译了 zlib、curl、openssl 和 libuuid，没有出现任何问题。 目前我停留在交叉编译的 linking 阶段。 为了编译 sdk，使用了 Cmake，所以我提供了一个自定义工具链文件来设置我的开发环境的路径和目录。
这是系统配置：
- OS: Linux 2.6.36
- 架构：ARM9
- Azure IoTHub SDK 版本：2017-11-03
工具链文件 (toolchain.cmake):
INCLUDE(CMakeForceCompiler)
set(CMAKE_SYSTEM_NAME Linux)
set(CMAKE_SYSTEM_VERSION 1)
set(CMAKE_C_COMPILER /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc)
set(CMAKE_CXX_COMPILER /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++)
set(CMAKE_C_FLAGS "${CMAKE_CC_FLAGS} -L/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib -ldl -lcrypto -lssl")
#set(CMAKE_C_FLAGS "--std=c99 ${CMAKE_C_FLAGS}")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -L/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib -ldl -lcrypto -lssl")
set(CXX_FLAG_CXX11 "--std=c++11 ${CMAKE_CXX_FLAGS}")
set(CMAKE_FIND_ROOT_PATH /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi)
#OpenSSL path
set(OPENSSL_ROOT_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/ssl)
set(OPENSSL_CRYPTO_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcrypto.so.1.0.0)
#set(OPENSSL_CRYPTO_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/armv4t/usr/lib/libcrypt.a)
set(OPENSSL_SSL_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libssl.a)
set(OPENSSL_INCLUDE_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/include)
#libcurl path
set(CURL_INCLUDE_DIR /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/include/curl)
set(CURL_LIBRARY /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a)
set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
为了编译 sdk，我 运行 按照 /sdk/directory/cmake/ 中的命令：
cmake -DCMAKE_TOOLCHAIN_FILE=../toolchain.cmake -DCMAKE_INSTALL_PREFIX=/opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/
cmake --build .
第一个命令 returns 给我这个输出：
-- The C compiler identification is GNU 4.4.1
-- The CXX compiler identification is GNU 4.4.1
-- Check for working C compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc
-- Check for working C compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-gcc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++
-- Check for working CXX compiler: /opt/crosstool/arm-none-linux-gnueabi/bin/arm-none-linux-gnueabi-g++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Looking for include file stdint.h
-- Looking for include file stdint.h - found
-- Looking for include file stdbool.h
-- Looking for include file stdbool.h - found
-- target architecture: ARM
-- Found OpenSSL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcrypto.so.1.0.0 (found version "1.0.2m")
-- Cross compiling not using pkg-config
-- Found CURL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a
-- Found CURL: /opt/crosstool/arm-none-linux-gnueabi/arm-none-linux-gnueabi/libc/usr/lib/libcurl.a
-- target architecture: ARM
-- target architecture: ARM
-- target architecture: ARM
-- iothub architecture: ARM
-- Configuring done
-- Generating done
-- Build files have been written to: /home/ubuntu/azure-iot-sdk-c/cmake
我遇到了第二个问题，它在 linking 文件时在进程的 20% 处出现错误，这是输出：
[ 19%] Built target aziotsharedutil
Scanning dependencies of target iot_c_utility
[ 20%] Building C object c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/iot_c_utility.c.o
[ 20%] Linking C executable iot_c_utility
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function log_ERR_get_error': tlsio_openssl.c:(.text+0x1198): undefined reference toERR_get_error'
tlsio_openssl.c:(.text+0x11d4): undefined reference to ERR_error_string' tlsio_openssl.c:(.text+0x1224): undefined reference toERR_get_error'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_dynamic_locks_uninstall': tlsio_openssl.c:(.text+0x1450): undefined reference toCRYPTO_set_dynlock_create_callback'
tlsio_openssl.c:(.text+0x1458): undefined reference to CRYPTO_set_dynlock_lock_callback' tlsio_openssl.c:(.text+0x1460): undefined reference toCRYPTO_set_dynlock_destroy_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_dynamic_locks_install': tlsio_openssl.c:(.text+0x1484): undefined reference toCRYPTO_set_dynlock_destroy_callback'
tlsio_openssl.c:(.text+0x1494): undefined reference to CRYPTO_set_dynlock_lock_callback' tlsio_openssl.c:(.text+0x14a4): undefined reference toCRYPTO_set_dynlock_create_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_static_locks_lock_unlock_cb': tlsio_openssl.c:(.text+0x14ec): undefined reference toCRYPTO_num_locks'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function openssl_static_locks_uninstall': tlsio_openssl.c:(.text+0x15f4): undefined reference toCRYPTO_set_locking_callback'
tlsio_openssl.c:(.text+0x1658): undefined reference to CRYPTO_num_locks' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionopenssl_static_locks_install':
tlsio_openssl.c:(.text+0x1790): undefined reference to CRYPTO_num_locks' tlsio_openssl.c:(.text+0x18ec): undefined reference toCRYPTO_num_locks'
tlsio_openssl.c:(.text+0x1908): undefined reference to CRYPTO_num_locks' tlsio_openssl.c:(.text+0x1980): undefined reference toCRYPTO_set_locking_callback'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function write_outgoing_bytes': tlsio_openssl.c:(.text+0x1b60): undefined reference toBIO_ctrl_pending'
tlsio_openssl.c:(.text+0x1c18): undefined reference to BIO_read' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionsend_handshake_bytes':
tlsio_openssl.c:(.text+0x1d38): undefined reference to ERR_clear_error' tlsio_openssl.c:(.text+0x1d48): undefined reference toSSL_do_handshake'
tlsio_openssl.c:(.text+0x1d70): undefined reference to SSL_get_error' tlsio_openssl.c:(.text+0x1db8): undefined reference toERR_get_error'
tlsio_openssl.c:(.text+0x1dc8): undefined reference to ERR_error_string' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiondecode_ssl_received_bytes':
tlsio_openssl.c:(.text+0x21d0): undefined reference to SSL_read' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionon_underlying_io_bytes_received':
tlsio_openssl.c:(.text+0x22e8): undefined reference to BIO_write' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functionclose_openssl_instance':
tlsio_openssl.c:(.text+0x241c): undefined reference to SSL_free' tlsio_openssl.c:(.text+0x2448): undefined reference toSSL_CTX_free'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function add_certificate_to_store': tlsio_openssl.c:(.text+0x249c): undefined reference toSSL_CTX_get_cert_store'
tlsio_openssl.c:(.text+0x24d0): undefined reference to BIO_s_mem' tlsio_openssl.c:(.text+0x2508): undefined reference toBIO_new'
tlsio_openssl.c:(.text+0x2544): undefined reference to BIO_puts' tlsio_openssl.c:(.text+0x25b4): undefined reference toX509_STORE_add_cert'
tlsio_openssl.c:(.text+0x25c8): undefined reference to X509_free' tlsio_openssl.c:(.text+0x25e4): undefined reference toX509_free'
tlsio_openssl.c:(.text+0x2600): undefined reference to PEM_read_bio_X509' tlsio_openssl.c:(.text+0x263c): undefined reference toBIO_free'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function create_openssl_instance': tlsio_openssl.c:(.text+0x26b0): undefined reference toTLSv1_2_method'
tlsio_openssl.c:(.text+0x26d0): undefined reference to TLSv1_1_method' tlsio_openssl.c:(.text+0x26e0): undefined reference toTLSv1_method'
tlsio_openssl.c:(.text+0x26f0): undefined reference to SSL_CTX_new' tlsio_openssl.c:(.text+0x2758): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x27e4): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2870): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x2904): undefined reference to SSL_CTX_set_cert_verify_callback' tlsio_openssl.c:(.text+0x2908): undefined reference toBIO_s_mem'
tlsio_openssl.c:(.text+0x2914): undefined reference to BIO_new' tlsio_openssl.c:(.text+0x2940): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x296c): undefined reference to BIO_s_mem' tlsio_openssl.c:(.text+0x2978): undefined reference toBIO_new'
tlsio_openssl.c:(.text+0x29a4): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x29b4): undefined reference toSSL_CTX_free'
tlsio_openssl.c:(.text+0x29f8): undefined reference to BIO_ctrl' tlsio_openssl.c:(.text+0x2a20): undefined reference toBIO_ctrl'
tlsio_openssl.c:(.text+0x2a3c): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x2a4c): undefined reference toBIO_free'
tlsio_openssl.c:(.text+0x2a5c): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2ae0): undefined reference toSSL_CTX_set_verify'
tlsio_openssl.c:(.text+0x2af0): undefined reference to SSL_CTX_set_default_verify_paths' tlsio_openssl.c:(.text+0x2b60): undefined reference toSSL_new'
tlsio_openssl.c:(.text+0x2b8c): undefined reference to BIO_free' tlsio_openssl.c:(.text+0x2b9c): undefined reference toBIO_free'
tlsio_openssl.c:(.text+0x2bac): undefined reference to SSL_CTX_free' tlsio_openssl.c:(.text+0x2bfc): undefined reference toSSL_set_bio'
tlsio_openssl.c:(.text+0x2c0c): undefined reference to SSL_set_connect_state' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_init':
tlsio_openssl.c:(.text+0x2c88): undefined reference to SSL_library_init' tlsio_openssl.c:(.text+0x2c8c): undefined reference toSSL_load_error_strings'
tlsio_openssl.c:(.text+0x2c90): undefined reference to ERR_load_BIO_strings' tlsio_openssl.c:(.text+0x2c94): undefined reference toOPENSSL_add_all_algorithms_noconf'
../../libaziotsharedutil.a(tlsio_openssl.c.o): In function tlsio_openssl_deinit': tlsio_openssl.c:(.text+0x2d40): undefined reference toFIPS_mode_set'
tlsio_openssl.c:(.text+0x2d48): undefined reference to CRYPTO_set_locking_callback' tlsio_openssl.c:(.text+0x2d50): undefined reference toCRYPTO_set_id_callback'
tlsio_openssl.c:(.text+0x2d54): undefined reference to ERR_free_strings' tlsio_openssl.c:(.text+0x2d58): undefined reference toEVP_cleanup'
tlsio_openssl.c:(.text+0x2d60): undefined reference to ERR_remove_thread_state' tlsio_openssl.c:(.text+0x2d64): undefined reference toSSL_COMP_free_compression_methods'
tlsio_openssl.c:(.text+0x2d68): undefined reference to CRYPTO_cleanup_all_ex_data' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_send':
tlsio_openssl.c:(.text+0x38e4): undefined reference to SSL_write' ../../libaziotsharedutil.a(tlsio_openssl.c.o): In functiontlsio_openssl_setoption':
tlsio_openssl.c:(.text+0x423c): undefined reference to SSL_CTX_set_cert_verify_callback' tlsio_openssl.c:(.text+0x42ac): undefined reference toSSL_CTX_set_cert_verify_callback'
../../libaziotsharedutil.a(x509_openssl.c.o): In function log_ERR_get_error': x509_openssl.c:(.text+0x80): undefined reference toERR_get_error'
x509_openssl.c:(.text+0xbc): undefined reference to ERR_error_string' x509_openssl.c:(.text+0x10c): undefined reference toERR_get_error'
../../libaziotsharedutil.a(x509_openssl.c.o): In function load_certificate_chain': x509_openssl.c:(.text+0x170): undefined reference toBIO_new_mem_buf'
x509_openssl.c:(.text+0x1b4): undefined reference to PEM_read_bio_X509_AUX' x509_openssl.c:(.text+0x1f0): undefined reference toSSL_CTX_use_certificate'
x509_openssl.c:(.text+0x250): undefined reference to sk_pop_free' x509_openssl.c:(.text+0x274): undefined reference toSSL_CTX_ctrl'
x509_openssl.c:(.text+0x288): undefined reference to X509_free' x509_openssl.c:(.text+0x2ac): undefined reference toPEM_read_bio_X509'
x509_openssl.c:(.text+0x2d0): undefined reference to ERR_peek_last_error' x509_openssl.c:(.text+0x300): undefined reference toERR_clear_error'
x509_openssl.c:(.text+0x31c): undefined reference to X509_free' x509_openssl.c:(.text+0x324): undefined reference toBIO_free'
x509_openssl.c:(.text+0x344): undefined reference to X509_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionload_alias_key_cert':
x509_openssl.c:(.text+0x374): undefined reference to BIO_new_mem_buf' x509_openssl.c:(.text+0x3b8): undefined reference toPEM_read_bio_PrivateKey'
x509_openssl.c:(.text+0x3f4): undefined reference to SSL_CTX_use_PrivateKey' x509_openssl.c:(.text+0x470): undefined reference toEVP_PKEY_free'
x509_openssl.c:(.text+0x478): undefined reference to BIO_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionload_private_key_RSA':
x509_openssl.c:(.text+0x4c8): undefined reference to BIO_new_mem_buf' x509_openssl.c:(.text+0x50c): undefined reference toPEM_read_bio_RSAPrivateKey'
x509_openssl.c:(.text+0x548): undefined reference to SSL_CTX_use_RSAPrivateKey' x509_openssl.c:(.text+0x580): undefined reference toRSA_free'
x509_openssl.c:(.text+0x588): undefined reference to BIO_free' ../../libaziotsharedutil.a(x509_openssl.c.o): In functionx509_openssl_add_certificates':
x509_openssl.c:(.text+0xa1c): undefined reference to SSL_CTX_get_cert_store' x509_openssl.c:(.text+0xa50): undefined reference toBIO_s_mem'
x509_openssl.c:(.text+0xa88): undefined reference to BIO_new' x509_openssl.c:(.text+0xac4): undefined reference toBIO_puts'
x509_openssl.c:(.text+0xb1c): undefined reference to X509_STORE_add_cert' x509_openssl.c:(.text+0xb2c): undefined reference toERR_peek_error'
x509_openssl.c:(.text+0xb60): undefined reference to X509_free' x509_openssl.c:(.text+0xb6c): undefined reference toX509_free'
x509_openssl.c:(.text+0xb88): undefined reference to PEM_read_bio_X509' x509_openssl.c:(.text+0xbc4): undefined reference toBIO_free'
../../libaziotsharedutil.a(crt_abstractions.c.o): In function splitFloatString': crt_abstractions.c:(.text+0x10b8): undefined reference topow'
crt_abstractions.c:(.text+0x1150): undefined reference to pow' ../../libaziotsharedutil.a(crt_abstractions.c.o): In functionstrtof_s':
crt_abstractions.c:(.text+0x127c): undefined reference to pow' ../../libaziotsharedutil.a(crt_abstractions.c.o): In functionstrtold_s':
crt_abstractions.c:(.text+0x158c): undefined reference to `pow'
collect2: ld returned 1 exit status
c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/build.make:95: set di istruzioni per l'obiettivo "c-utility/samples/iot_c_utility/iot_c_utility" non riuscito
make[2]: *** [c-utility/samples/iot_c_utility/iot_c_utility] Errore 1
CMakeFiles/Makefile2:1056: set di istruzioni per l'obiettivo "c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/all" non riuscito
make[1]: *** [c-utility/samples/iot_c_utility/CMakeFiles/iot_c_utility.dir/all] Errore 2
Makefile:140: set di istruzioni per l'obiettivo "all" non riuscito
make: *** [all] Errore 2
我试图找出我缺少的库或 link 指令，因为我认为我没有以正确的方式引用已编译的库，但我找不到解决方案呢。 有没有人已经解决了类似的问题？
使用 VERBOSE=1 从 linker 获取输出。
您似乎缺少 link 针对 libssl 和 libcrypto