Symbol Resolution Errors in Dynamic Library Build Using CEF Dependency
Closed this issue · 5 comments
pedroleal11 commented
Describe the bug
I created a lib that uses CEF as a dependency (via binary), which will be used to create rust bindings. So in order to achieve that, our lib has to be dynamic (which is causing problems) and not static as used in cef-project examples (e.g. minimal). When I build my lib as static, all my test demos work, however when running as dynamic, I get symbol errors from libcef.so (localtime, localtime64, localtime_r, localtime64_r) and consequently, my demos don`t work as expected.
To Reproduce
Steps to reproduce the behavior:
In CMakeLists.txt I defined my lib:
add_library(${SHARED_TARGET} SHARED ${cef_buffer_lib_source_files})
add_dependencies(${SHARED_TARGET} libcef_dll_wrapper)
target_link_libraries(${SHARED_TARGET} libcef_lib ${LIBCEF_DLL_WRAPPER} ${CEF_STANDARD_LIBS})```
My demos use only this lib (libcef_buffer_lib.so). When running the command ```ldd ./cef_demo``` I get the following dependencies:
```linux-vdso.so.1 (0x00007ffc6279e000)
libcef_buffer_lib.so => /workspaces/cef-lib/build/Debug/Debug/libcef_buffer_lib.so (0x000070997ed1f000)
libstdc++.so.6 => /lib/x86_64-linux-gnu/libstdc++.so.6 (0x000070997eaeb000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x000070997eacb000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x000070997e8a2000)
libcef.so => /workspaces/cef-lib/build/Debug/Debug/libcef.so (0x0000709971200000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x0000709971119000)
/lib64/ld-linux-x86-64.so.2 (0x000070997ee60000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x000070997e89b000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x000070997e896000)
libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x000070997e836000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x0000709970fdf000)
libnss3.so => /lib/x86_64-linux-gnu/libnss3.so (0x0000709970eae000)
libnssutil3.so => /lib/x86_64-linux-gnu/libnssutil3.so (0x0000709970e7b000)
libsmime3.so => /lib/x86_64-linux-gnu/libsmime3.so (0x000070997e80a000)
libnspr4.so => /lib/x86_64-linux-gnu/libnspr4.so (0x0000709970e3b000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x0000709970ded000)
libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x0000709970dc3000)
libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x0000709970d8b000)
libcups.so.2 => /lib/x86_64-linux-gnu/libcups.so.2 (0x0000709970ceb000)
libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x0000709970cd5000)
libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x0000709970afb000)
libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007099709bb000)
libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007099709b6000)
libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007099709b1000)
libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x000070997099a000)
libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 (0x0000709970992000)
libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 (0x0000709970985000)
libgbm.so.1 => /lib/x86_64-linux-gnu/libgbm.so.1 (0x0000709970974000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x0000709970943000)
libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x0000709970919000)
libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007099708d0000)
libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x0000709970869000)
libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 (0x0000709970741000)
libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x0000709970717000)
libasound.so.2 => /lib/x86_64-linux-gnu/libasound.so.2 (0x0000709970614000)
libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 (0x00007099705da000)
libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007099705cb000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x0000709970555000)
libplc4.so => /lib/x86_64-linux-gnu/libplc4.so (0x000070997054e000)
libplds4.so => /lib/x86_64-linux-gnu/libplds4.so (0x0000709970549000)
libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x0000709970482000)
libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x000070997042c000)
libavahi-common.so.3 => /lib/x86_64-linux-gnu/libavahi-common.so.3 (0x000070997041e000)
libavahi-client.so.3 => /lib/x86_64-linux-gnu/libavahi-client.so.3 (0x000070997040a000)
libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x000070997021f000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x0000709970203000)
libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007099701fc000)
libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007099701b6000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x000070997018a000)
libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 (0x000070997017d000)
libwayland-server.so.0 => /lib/x86_64-linux-gnu/libwayland-server.so.0 (0x0000709970167000)
libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x0000709970154000)
libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x000070997014c000)
libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x0000709970144000)
libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 (0x0000709970128000)
libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 (0x000070997011d000)
libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x000070997004e000)
libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x000070996ffa3000)
libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x000070996ff57000)
libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x000070996fe8f000)
libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x000070996fe54000)
libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x000070996fe4f000)
libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x000070996fe40000)
libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 (0x000070996fe2a000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x000070996fdff000)
libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x000070996fd30000)
liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x000070996fd10000)
libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x000070996fd05000)
libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x000070996fbc7000)
libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x000070996fafa000)
libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x000070996facb000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x000070996fac5000)
libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x000070996fab7000)
libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x000070996f97c000)
libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x000070996f95b000)
libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x000070996f7af000)
libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x000070996f797000)
libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x000070996f751000)
libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x000070996f709000)
libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x000070996f687000)
libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x000070996f650000)
libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x000070996f5b7000)
libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x000070996f59f000)
libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 (0x000070996f596000)
libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 (0x000070996f56f000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x000070996f566000)
libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x000070996f556000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x000070996f530000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x000070996f529000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x000070996f515000)
libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x000070996f508000)
libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x000070996f4e3000)```
On another hand, when running ```LD_DEBUG=libs ./cef_demo``` I get the following symbol errors:
``` 66798: /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime (fatal)
66798: /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime64 (fatal)
66798: /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime_r (fatal)
66798: /workspaces/cef-lib/build/Debug/Debug/libcef.so: error: symbol lookup error: undefined symbol: localtime64_r (fatal)```
Either libs (when built as static or shared) have the same lib`s dependency paths.
**Expected behavior**
libcef.so can be dynamically loaded into my demos.
**Screenshots**
If applicable, add screenshots to help explain your problem.
**Versions (please complete the following information):**
- OS: [Ubuntu 24.04.1]
- CEF Version: [130.1.16]
**Additional context**
Add any other context about the problem here.
magreenblatt commented
when running as dynamic, I get symbol errors from libcef.so (localtime, localtime64, localtime_r, localtime64_r)
These functions are part of the Standard C library (libc). What does ldd show for libcef.so?
pedroleal11 commented
This is its output (ldd ./libcef.so):
linux-vdso.so.1 (0x00007ffef855c000)
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007ced8b709000)
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007ced8b704000)
libgobject-2.0.so.0 => /lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007ced8b6a4000)
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007ced7dec6000)
libnss3.so => /lib/x86_64-linux-gnu/libnss3.so (0x00007ced7dd95000)
libnssutil3.so => /lib/x86_64-linux-gnu/libnssutil3.so (0x00007ced8b66f000)
libsmime3.so => /lib/x86_64-linux-gnu/libsmime3.so (0x00007ced8b645000)
libnspr4.so => /lib/x86_64-linux-gnu/libnspr4.so (0x00007ced7dd55000)
libdbus-1.so.3 => /lib/x86_64-linux-gnu/libdbus-1.so.3 (0x00007ced7dd07000)
libatk-1.0.so.0 => /lib/x86_64-linux-gnu/libatk-1.0.so.0 (0x00007ced8b61b000)
libatk-bridge-2.0.so.0 => /lib/x86_64-linux-gnu/libatk-bridge-2.0.so.0 (0x00007ced7dccf000)
libcups.so.2 => /lib/x86_64-linux-gnu/libcups.so.2 (0x00007ced7dc31000)
libdrm.so.2 => /lib/x86_64-linux-gnu/libdrm.so.2 (0x00007ced7dc1b000)
libgio-2.0.so.0 => /lib/x86_64-linux-gnu/libgio-2.0.so.0 (0x00007ced7da41000)
libX11.so.6 => /lib/x86_64-linux-gnu/libX11.so.6 (0x00007ced7d901000)
libXcomposite.so.1 => /lib/x86_64-linux-gnu/libXcomposite.so.1 (0x00007ced8b614000)
libXdamage.so.1 => /lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007ced8b60f000)
libXext.so.6 => /lib/x86_64-linux-gnu/libXext.so.6 (0x00007ced7d8ec000)
libXfixes.so.3 => /lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007ced7d8e4000)
libXrandr.so.2 => /lib/x86_64-linux-gnu/libXrandr.so.2 (0x00007ced7d8d7000)
libgbm.so.1 => /lib/x86_64-linux-gnu/libgbm.so.1 (0x00007ced7d8c6000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007ced7d895000)
libxcb.so.1 => /lib/x86_64-linux-gnu/libxcb.so.1 (0x00007ced7d86b000)
libxkbcommon.so.0 => /lib/x86_64-linux-gnu/libxkbcommon.so.0 (0x00007ced7d824000)
libpango-1.0.so.0 => /lib/x86_64-linux-gnu/libpango-1.0.so.0 (0x00007ced7d7bd000)
libcairo.so.2 => /lib/x86_64-linux-gnu/libcairo.so.2 (0x00007ced7d695000)
libudev.so.1 => /lib/x86_64-linux-gnu/libudev.so.1 (0x00007ced7d66b000)
libasound.so.2 => /lib/x86_64-linux-gnu/libasound.so.2 (0x00007ced7d568000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007ced7d481000)
libatspi.so.0 => /lib/x86_64-linux-gnu/libatspi.so.0 (0x00007ced7d445000)
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007ced7d425000)
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007ced7d1fc000)
/lib64/ld-linux-x86-64.so.2 (0x00007ced8b718000)
libffi.so.8 => /lib/x86_64-linux-gnu/libffi.so.8 (0x00007ced7d1ef000)
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007ced7d179000)
libplc4.so => /lib/x86_64-linux-gnu/libplc4.so (0x00007ced7d172000)
libplds4.so => /lib/x86_64-linux-gnu/libplds4.so (0x00007ced7d16b000)
libsystemd.so.0 => /lib/x86_64-linux-gnu/libsystemd.so.0 (0x00007ced7d0a4000)
libgssapi_krb5.so.2 => /lib/x86_64-linux-gnu/libgssapi_krb5.so.2 (0x00007ced7d050000)
libavahi-common.so.3 => /lib/x86_64-linux-gnu/libavahi-common.so.3 (0x00007ced7d042000)
libavahi-client.so.3 => /lib/x86_64-linux-gnu/libavahi-client.so.3 (0x00007ced7d02e000)
libgnutls.so.30 => /lib/x86_64-linux-gnu/libgnutls.so.30 (0x00007ced7ce41000)
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007ced7ce25000)
libgmodule-2.0.so.0 => /lib/x86_64-linux-gnu/libgmodule-2.0.so.0 (0x00007ced7ce1e000)
libmount.so.1 => /lib/x86_64-linux-gnu/libmount.so.1 (0x00007ced7cdda000)
libselinux.so.1 => /lib/x86_64-linux-gnu/libselinux.so.1 (0x00007ced7cdae000)
libXrender.so.1 => /lib/x86_64-linux-gnu/libXrender.so.1 (0x00007ced7cd9f000)
libwayland-server.so.0 => /lib/x86_64-linux-gnu/libwayland-server.so.0 (0x00007ced7cd89000)
libxcb-randr.so.0 => /lib/x86_64-linux-gnu/libxcb-randr.so.0 (0x00007ced7cd76000)
libXau.so.6 => /lib/x86_64-linux-gnu/libXau.so.6 (0x00007ced7cd70000)
libXdmcp.so.6 => /lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007ced7cd68000)
libfribidi.so.0 => /lib/x86_64-linux-gnu/libfribidi.so.0 (0x00007ced7cd4a000)
libthai.so.0 => /lib/x86_64-linux-gnu/libthai.so.0 (0x00007ced7cd3f000)
libharfbuzz.so.0 => /lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007ced7cc70000)
libpixman-1.so.0 => /lib/x86_64-linux-gnu/libpixman-1.so.0 (0x00007ced7cbc5000)
libfontconfig.so.1 => /lib/x86_64-linux-gnu/libfontconfig.so.1 (0x00007ced7cb7b000)
libfreetype.so.6 => /lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007ced7cab3000)
libpng16.so.16 => /lib/x86_64-linux-gnu/libpng16.so.16 (0x00007ced7ca78000)
libxcb-shm.so.0 => /lib/x86_64-linux-gnu/libxcb-shm.so.0 (0x00007ced7ca71000)
libxcb-render.so.0 => /lib/x86_64-linux-gnu/libxcb-render.so.0 (0x00007ced7ca62000)
libXi.so.6 => /lib/x86_64-linux-gnu/libXi.so.6 (0x00007ced7ca4e000)
liblzma.so.5 => /lib/x86_64-linux-gnu/liblzma.so.5 (0x00007ced7ca23000)
libzstd.so.1 => /lib/x86_64-linux-gnu/libzstd.so.1 (0x00007ced7c954000)
liblz4.so.1 => /lib/x86_64-linux-gnu/liblz4.so.1 (0x00007ced7c932000)
libcap.so.2 => /lib/x86_64-linux-gnu/libcap.so.2 (0x00007ced7c927000)
libgcrypt.so.20 => /lib/x86_64-linux-gnu/libgcrypt.so.20 (0x00007ced7c7e9000)
libkrb5.so.3 => /lib/x86_64-linux-gnu/libkrb5.so.3 (0x00007ced7c71e000)
libk5crypto.so.3 => /lib/x86_64-linux-gnu/libk5crypto.so.3 (0x00007ced7c6ef000)
libcom_err.so.2 => /lib/x86_64-linux-gnu/libcom_err.so.2 (0x00007ced7c6e9000)
libkrb5support.so.0 => /lib/x86_64-linux-gnu/libkrb5support.so.0 (0x00007ced7c6d9000)
libp11-kit.so.0 => /lib/x86_64-linux-gnu/libp11-kit.so.0 (0x00007ced7c59e000)
libidn2.so.0 => /lib/x86_64-linux-gnu/libidn2.so.0 (0x00007ced7c57d000)
libunistring.so.2 => /lib/x86_64-linux-gnu/libunistring.so.2 (0x00007ced7c3d3000)
libtasn1.so.6 => /lib/x86_64-linux-gnu/libtasn1.so.6 (0x00007ced7c3bb000)
libnettle.so.8 => /lib/x86_64-linux-gnu/libnettle.so.8 (0x00007ced7c375000)
libhogweed.so.6 => /lib/x86_64-linux-gnu/libhogweed.so.6 (0x00007ced7c32b000)
libgmp.so.10 => /lib/x86_64-linux-gnu/libgmp.so.10 (0x00007ced7c2a9000)
libblkid.so.1 => /lib/x86_64-linux-gnu/libblkid.so.1 (0x00007ced7c272000)
libpcre2-8.so.0 => /lib/x86_64-linux-gnu/libpcre2-8.so.0 (0x00007ced7c1db000)
libbsd.so.0 => /lib/x86_64-linux-gnu/libbsd.so.0 (0x00007ced7c1c3000)
libdatrie.so.1 => /lib/x86_64-linux-gnu/libdatrie.so.1 (0x00007ced7c1b8000)
libgraphite2.so.3 => /lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007ced7c191000)
libuuid.so.1 => /lib/x86_64-linux-gnu/libuuid.so.1 (0x00007ced7c188000)
libbrotlidec.so.1 => /lib/x86_64-linux-gnu/libbrotlidec.so.1 (0x00007ced7c17a000)
libgpg-error.so.0 => /lib/x86_64-linux-gnu/libgpg-error.so.0 (0x00007ced7c154000)
libkeyutils.so.1 => /lib/x86_64-linux-gnu/libkeyutils.so.1 (0x00007ced7c14b000)
libresolv.so.2 => /lib/x86_64-linux-gnu/libresolv.so.2 (0x00007ced7c137000)
libmd.so.0 => /lib/x86_64-linux-gnu/libmd.so.0 (0x00007ced7c12a000)
libbrotlicommon.so.1 => /lib/x86_64-linux-gnu/libbrotlicommon.so.1 (0x00007ced7c107000)
magreenblatt commented
So, both your cef_demo and libcef.so load the same version of libc. What version of libc is your main application loading?
pedroleal11 commented
This one: ldd (Ubuntu GLIBC 2.35-0ubuntu3.1) 2.35
magreenblatt commented
I don't see that this is a CEF issue. The libcef.so correctly links libc which should provide the specified symbols. I don't know why your application is having difficulty loading them but I suspect it's something to do with your main application's LD environment.