Tencent
鲲鹏ARM下编译错误
我也出现了一样的错误
我尝试着找了一些方案，看到其中一个解释是这么说的
The C and C++ standards allows the character type char to be signed or unsigned, depending on the platform and compiler. Most systems, including x86 GNU/Linux and Microsoft Windows, use signed char, but those based on PowerPC and ARM processors typically use unsigned char.(29) This can lead to unexpected results when porting programs between platforms which have different defaults for the type of char.
我也在鲲鹏arm上编译，基于centos8.3.2011（docker），由于gcc版本较高，遇到较多问题，整理了一下，有遇到类似问题的可以参照一下。
Centos8编译Tendis
1 编译Tendis
1 安装基础环境
yum install -y python38-devel gcc-c++ flex bison tbb-devel numactl-devel autoconf diffutils
2 下载tendis源码
git clone https://github.com/Tencent/tendis.git --recursive
git submodule update --init --recursive
# 切换到标签分支
git stash && git checkout 2.4.2-rocksdb-v5.13.4
# 加权限，解决未来时间的问题
find ./ -name "*.sh" | xargs chmod 777 && find . |xargs touch
3安装doxygen库
git clone https://github.com/doxygen/doxygen.git && \
cd doxygen && \
cmake -G "Unix Makefiles" .. && \
make -j 8 && make install
4编译tendis
mkdir bulid
cd build
cmake ../
5 编译错误处理
1 Werror报错
/opt/Tendis/src/tendisplus/utils/base64.cpp:70:12: error: comparison is always false due to limited range of data type [-Werror=type-limits]
if (ch < 0) {
~~~^~~
cc1plus: some warnings being treated as errors
make[2]: *** [src/tendisplus/utils/CMakeFiles/utils_common.dir/build.make:160: src/tendisplus/utils/CMakeFiles/utils_common.dir/base64.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:2805: src/tendisplus/utils/CMakeFiles/utils_common.dir/all] Error 2
make: *** [Makefile:156: all] Error 2
在build.make同目录下的flags.make中增加忽略选项，形如-Wno-error=class-memaccess。主要有
CMakeLists.txt
-Wno-error=class-memaccess
src/tendisplus/utils/CMakeFiles/utils_common.dir/flags.make
-Wno-error=narrowing -Wno-error=type-limits
src/tendisplus/cluster/CMakeFiles/migrate.dir/flags.make
-Wno-error=parentheses
src/tendisplus/replication/CMakeFiles/repl_manager.dir/flags.make
-Wno-error=format-truncation
2 代码报错
（1）
/opt/Tendis/src/tendisplus/utils/test_util.cpp: In function ‘std::shared_ptr<tendisplus::ServerEntry> tendisplus::makeServerEntryOld(const std::shared_ptr<tendisplus::ServerParams>&)’:
/opt/Tendis/src/tendisplus/utils/test_util.cpp:243:57: error: no matching function for call to ‘tendisplus::RocksKVStore::RocksKVStore(const char [8], const std::shared_ptr<tendisplus::ServerParams>&, std::nullptr_t, bool)’
new RocksKVStore(CATALOG_NAME, cfg, nullptr, false))),
^
In file included from /opt/Tendis/src/tendisplus/server/server_entry.h:28,
from /opt/Tendis/src/tendisplus/utils/test_util.h:18,
from /opt/Tendis/src/tendisplus/utils/test_util.cpp:14:
/opt/Tendis/src/tendisplus/storage/rocks/rocks_kvstore.h:211:3: note: candidate: ‘tendisplus::RocksKVStore::RocksKVStore(const string&, const std::shared_ptr<tendisplus::ServerParams>&, std::shared_ptr<rocksdb::Cache>, std::shared_ptr<rocksdb::RateLimiter>, bool, tendisplus::KVStore::StoreMode, tendisplus::RocksKVStore::TxnMode, uint32_t)’
RocksKVStore(const std::string& id,
^~~~~~~~~~~~
/opt/Tendis/src/tendisplus/storage/rocks/rocks_kvstore.h:211:3: note: no known conversion for argument 4 from ‘bool’ to ‘std::shared_ptr<rocksdb::RateLimiter>’
make[2]: *** [src/tendisplus/utils/CMakeFiles/test_util.dir/build.make:76: src/tendisplus/utils/CMakeFiles/test_util.dir/test_util.cpp.o] Error 1
make[1]: *** [CMakeFiles/Makefile2:2941: src/tendisplus/utils/CMakeFiles/test_util.dir/all] Error 2
make: *** [Makefile:156: all] Error 2
修改/opt/Tendis/src/tendisplus/utils/test_util.cpp，将RocksKVStore传参中nullptr前加block_cache
3 链接报错
（1）
/usr/bin/ld: cannot find -lstdc++
collect2: error: ld returned 1 exit status
make[2]: *** [src/tendisplus/cluster/CMakeFiles/cluster_test.dir/build.make:158: bin/cluster_test] Error 1
make[1]: *** [CMakeFiles/Makefile2:4229: src/tendisplus/cluster/CMakeFiles/cluster_test.dir/all] Error 2
make: *** [Makefile:156: all] Error 2
由于缺少libstdc++.a文件，故将build.make同目录中的link.txt中的-static-libstdc++ 改成 -lstdc++。主要有以下文件：
src/tendisplus/server/CMakeFiles/tendisplus.dir/link.txt
src/tendisplus/replication/CMakeFiles/binlog_tool.dir/link.txt
src/tendisplus/cluster/CMakeFiles/cluster_test.dir/link.txt
2 编译redis-cli
1 获取redis稳定版并解压
wget http://download.redis.io/redis-stable.tar.gz
tar xvzf redis-stable.tar.gz
cd redis-stable
2 编译
make
3 报错处理
如果报错：jemalloc/jemalloc.h：没有那个文件或目录，可以尝试如下编译：
make MALLOC=libc
报错原因： 关于分配器allocator， 如果有MALLOC这个环境变量，会有用这个环境变量去建立Redis。 libc并不是默认的分配器， 默认的是 jemalloc, 因为 jemalloc 被证明比libc有更少的 fragmentation problems。 但是如果你又没有jemalloc 而只有 libc 当然 make 出错。 所以加这么一个参数。
3 提取程序
1 提取tendis
mkdir -p /opt/tendis-v2.4.2-rocksdb-v5.13.4/bin/deps
cp /opt/Tendis/build/bin/binlog_tool /opt/Tendis/build/bin/tendisplus /opt/tendis-v2.4.2-rocksdb-v5.13.4/bin/
cp /usr/lib64/libstdc++.so.6.0.25 /usr/lib64/libnuma.so.1.0.0 /usr/lib64/libnuma.so.1 /usr/lib64/libtbb.so.2 /opt/Tendis/tendis-v2.4.2-rocksdb-v5.13.4/bin/deps/
cd /opt/Tendis/tendis-v2.4.2-rocksdb-v5.13.4/bin/deps/
ln -s libstdc++.so.6.0.25 /usr/lib64/libstdc++.so.6
ls -s libstdc++.so.6.0.25 /usr/lib64/libstdc++.so
2 提取redis-cli
cp /opt/redis-stable/src/redis-cli /opt/Tendis/build/bin/
3 导出程序文件夹
使用docker cp命令拷出/opt/tendis-v2.4.2-rocksdb-v5.13.4
4 编译docker镜像
1.从官方镜像提取脚本文件，
从tencentdbforkv/tendisplus:v2.4.0镜像中提取/data1/tendis/scripts文件夹，放在tendis-v2.4.2-rocksdb-v5.13.4目录
2.还原官方Dockerfile文件,并按需修改
FROM centos:8.3.2011
RUN curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo && \
yum clean all && yum makecache && yum repolist && yum install -y net-tools
ENV CLUSTER=no REDIS_PASSWORD=test
WORKDIR /data1/
COPY tendis-v2.4.2-rocksdb-v5.13.4.tar.gz /data1/
RUN tar -vxf tendis-v2.4.2-rocksdb-v5.13.4.tar.gz && ln -fs tendis-v2.4.2-rocksdb-v5.13.4 tendis && rm -rf tendis-v2.4.2-rocksdb-v5.13.4.tar.gz && ln -s /data1/tendis/bin/redis-cli /usr/bin/redis-cli
EXPOSE 51002
CMD ["/bin/sh", "-c", "cd /data1/tendis/scripts && sh start.sh && tail -f /data1/tendis/51002/tendisplus.conf"]
3.编译docker镜像。
也可以直接拉这个arm版本镜像，用法和官方一致。 docker pull xrds1949/tendisplus:2.4.2
