OpenSSLLinux动态库编译

静态库编译

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                ./config 

                make

                make install

动态库编译

                ./config shared

                make

                make install

问题1）relocation R_AARCH64_ADR_PREL_PG_HI21              

之前编译完成静态库，没有清理干净，出现问题

指令    ./config shared && make

出错

usr/bin/ld: libcrypto.a(gost_eng.o): relocation R_AARCH64_ADR_PREL_PG_HI21 against symbol `stderr@@GLIBC_2.17' which may bind externally can not be used when making a shared object; recompile with -fPIC
/usr/bin/ld: libcrypto.a(gost_eng.o)(.text+0x4f0): unresolvable R_AARCH64_ADR_PREL_PG_HI21 relocation against symbol `stderr@@GLIBC_2.17'
/usr/bin/ld: final link failed: bad value
./stdio.h:477:1: error: 'gets' undeclared here (not in a function)
sed -i '/gets is a security hole/d' \
    gettext-{runtime/gnulib-lib,tools/{gnulib-lib,libgettextpo}}/stdio.in.h

解决

make clean

./config shared

问题2）undefined reference to

undefined reference to `GENERAL_NAME_free@libcrypto.so.10'
undefined reference to `SSL_get_verify_result@libssl.so.10'
undefined reference to `SSL_CTX_set_default_passwd_cb_userdata@libssl.so.10'
undefined reference to `sk_num@libcrypto.so.10'
undefined reference to `SSL_CTX_ctrl@libssl.so.10'
undefined reference to `CRYPTO_set_dynlock_lock_callback@libcrypto.so.10'
undefined reference to `SSL_accept@libssl.so.10'
undefined reference to `SSL_new@libssl.so.10'
undefined reference to `SSL_CTX_set_cipher_list@libssl.so.10'

按照如上的make install操作，就可以解决该问题，否则需要通过-lssl -lcrypto链接指定的openssl库，同时需要指定openssl的头文件目录

例子

g++  UploadMessageService_server.skeleton.cpp uploadmessageservice.cpp  thriftcom_types.cpp thriftcom_constants.cpp  pushmessageservice.cpp -lthrift-0.9.0 -lpthread -I /home -I ./  -L. -L /home/dong/3thrdparty/openssl-1.0.2j   -fpermissive  -o output -DHAVE_NETINET_IN_H

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