运行自定义gcc编译的应用时出现动态链接器直调分段故障

Question

我正在尝试创建一个可重定位(零依赖)的mongodb v4.0构建，它是在Debian Jessie上编译的，以便在Debian Buster上运行。

Mongo 4需要gcc 5.5：

Checking if C++ compiler is GCC 5.3.0 or newer...no

Debian Jessie的版本是gcc 4.9，所以我决定从源码开始编译gcc 5.5.0。

然后遵循下面的建议：Multiple glibc libraries on a single host

我复制了所有引用的库

LD_LIBRARY_PATH=/drone/src/mongodb-4/build/mongodb-4/lib
ldd /drone/src/mongodb-4/build/mongodb-4/bin/mongod.bin
    linux-vdso.so.1 (0x00007ffff825d000)
    libcurl.so.4 => /drone/src/mongodb-4/build/mongodb-4/lib/libcurl.so.4 (0x00007f9c85cb7000)
    libresolv.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libresolv.so.2 (0x00007f9c85aa0000)
    librt.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/librt.so.1 (0x00007f9c85898000)
    libdl.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libdl.so.2 (0x00007f9c85694000)
    libstdc++.so.6 => /drone/src/mongodb-4/build/mongodb-4/lib/libstdc++.so.6 (0x00007f9c85318000)
    libm.so.6 => /drone/src/mongodb-4/build/mongodb-4/lib/libm.so.6 (0x00007f9c85017000)
    libgcc_s.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/libgcc_s.so.1 (0x00007f9c84e01000)
    libpthread.so.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libpthread.so.0 (0x00007f9c84be4000)
    libc.so.6 => /drone/src/mongodb-4/build/mongodb-4/lib/libc.so.6 (0x00007f9c84839000)
    libidn.so.11 => /drone/src/mongodb-4/build/mongodb-4/lib/libidn.so.11 (0x00007f9c84605000)
    librtmp.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/librtmp.so.1 (0x00007f9c843e8000)
    libssh2.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/libssh2.so.1 (0x00007f9c841bf000)
    libssl.so.1.0.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libssl.so.1.0.0 (0x00007f9c83f5e000)
    libcrypto.so.1.0.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libcrypto.so.1.0.0 (0x00007f9c83b61000)
    libgssapi_krb5.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libgssapi_krb5.so.2 (0x00007f9c83916000)
    libkrb5.so.3 => /drone/src/mongodb-4/build/mongodb-4/lib/libkrb5.so.3 (0x00007f9c83642000)
    libk5crypto.so.3 => /drone/src/mongodb-4/build/mongodb-4/lib/libk5crypto.so.3 (0x00007f9c83411000)
    libcom_err.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libcom_err.so.2 (0x00007f9c8320d000)
    liblber-2.4.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/liblber-2.4.so.2 (0x00007f9c82ffe000)
    libldap_r-2.4.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libldap_r-2.4.so.2 (0x00007f9c82dac000)
    libz.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/libz.so.1 (0x00007f9c82b91000)
    /lib64/ld-linux-x86-64.so.2 (0x00007f9c89171000)
    libgnutls-deb0.so.28 => /drone/src/mongodb-4/build/mongodb-4/lib/libgnutls-deb0.so.28 (0x00007f9c8286b000)
    libhogweed.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libhogweed.so.2 (0x00007f9c8263c000)
    libnettle.so.4 => /drone/src/mongodb-4/build/mongodb-4/lib/libnettle.so.4 (0x00007f9c8240a000)
    libgmp.so.10 => /drone/src/mongodb-4/build/mongodb-4/lib/libgmp.so.10 (0x00007f9c82187000)
    libgcrypt.so.20 => /drone/src/mongodb-4/build/mongodb-4/lib/libgcrypt.so.20 (0x00007f9c81ea5000)
    libkrb5support.so.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libkrb5support.so.0 (0x00007f9c81c99000)
    libkeyutils.so.1 => /drone/src/mongodb-4/build/mongodb-4/lib/libkeyutils.so.1 (0x00007f9c81a95000)
    libsasl2.so.2 => /drone/src/mongodb-4/build/mongodb-4/lib/libsasl2.so.2 (0x00007f9c81879000)
    libp11-kit.so.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libp11-kit.so.0 (0x00007f9c81633000)
    libtasn1.so.6 => /drone/src/mongodb-4/build/mongodb-4/lib/libtasn1.so.6 (0x00007f9c8141f000)
    libgpg-error.so.0 => /drone/src/mongodb-4/build/mongodb-4/lib/libgpg-error.so.0 (0x00007f9c8120d000)
    libffi.so.6 => /drone/src/mongodb-4/build/mongodb-4/lib/libffi.so.6 (0x00007f9c81004000)

我不得不使用我的gcc 5版本中的libstdc++.so.*和libgcc_s.so.*。

此时，一切都很好：

/drone/src/mongodb-4/build/mongodb-4/bin/mongod --version
db version v4.0.21
git version: 3f68a848c68e993769589dc18e657728921d8367
allocator: tcmalloc
modules: none
build environment:
    distarch: x86_64
    target_arch: x86_64

但是，当我尝试直接在Jessie上运行dynamic linker (将其带到Buster)时，我得到了一个分段错误：

/lib64/ld-linux-x86-64.so.2 /drone/src/mongodb-4/build/mongodb-4/bin/mongod.bin --version
12465 Segmentation fault      (core dumped)

我做错了吗？

有什么方法可以调试它吗？

Answer 1

过了一段时间，我意识到，如果我试图打包一个自包含的构建，那么我应该可以在Debian Buster上完成(不需要自定义的gcc)，然后将所有的库和链接器移到Debian Jessie上，这很好用。主要要求是有一个单一的构建，既可以在杰西和Buster上工作。