hide .so symbols, avoid 2+ protobuf link conflict.

lichao

2021-05-19 981ca0fa022524fd04af988bc798f2d697d31548

hide .so symbols, avoid 2+ protobuf link conflict.

 proto/cpp/CMakeLists.txt

@@ -1,14 +1,11 @@
cmake_minimum_required(VERSION 3.0)

set (Target "bhome_msg")
set (TargetStatic "bhome_msg_static")
project(${Target})

find_package(Protobuf REQUIRED)
file(GLOB proto_files ../source/*.proto)
PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS ${proto_files})

add_library(${Target} SHARED ${PROTO_SRCS})
add_library(${TargetStatic} STATIC ${PROTO_SRCS})
target_link_libraries(${Target} protobuf-lite)
target_link_libraries(${TargetStatic} libprotobuf-lite.a)
add_library(${Target} STATIC ${PROTO_SRCS})
target_link_libraries(${Target} libprotobuf-lite.a)

 src/CMakeLists.txt

@@ -4,11 +4,12 @@
set(Target bhome_shmq)
set(TargetStatic bhome_shmq_static)

set(CMAKE_SHARED_LINKER_FLAGS  ${CMAKE_SHARED_LINKER_FLAGS} "-Wl,--version-script=${CMAKE_CURRENT_SOURCE_DIR}/exported_symbols")
include_directories(../log)
add_library(${Target} SHARED ${sources})
add_library(${TargetStatic} STATIC ${sources})

set(LogLibs "boost_log;boost_log_setup;boost_thread;boost_filesystem")

target_link_libraries(${Target} bhome_msg_static ${LogLibs} pthread rt)
target_link_libraries(${TargetStatic} bhome_msg_static ${LogLibs} pthread rt)
target_link_libraries(${Target} bhome_msg ${LogLibs} pthread rt)
target_link_libraries(${TargetStatic} bhome_msg ${LogLibs} pthread rt)

 src/exported_symbols

New file
@@ -0,0 +1,23 @@
VERS_1.0 {
global:
    BHApiIn1Out1Proxy;
    BHRegister;
    BHUnregister;
    BHRegisterTopics;
    BHQueryTopicAddress;
    BHSubscribeTopics;
    BHStartWorker;
    BHHeartbeatEasy;
    BHHeartbeat;
    BHPublish;
    BHReadSub;
    BHAsyncRequest;
    BHRequest;
    BHReadRequest;
    BHSendReply;
    BHCleanup;
    BHGetLastError;
    BHFree;
local:
    *;
};