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Remove export of dynamic symbols

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This commit is contained in:
Alexey Milovidov 2023-03-11 16:48:40 +01:00
parent 2104baabce
commit d3c3d8b8e4
3 changed files with 8 additions and 12 deletions
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10
CMakeLists.txt
View File

@ -155,8 +155,14 @@ elseif(GLIBC_COMPATIBILITY)
message (${RECONFIGURE_MESSAGE_LEVEL} "Glibc compatibility cannot be enabled in current configuration")
endif ()
# Make sure the final executable has symbols exported
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -rdynamic")
if (OS_LINUX)
# We should not export dynamic symbols, because:
# - The main clickhouse binary does not use dlopen,
# and whatever is poisoning it by LD_PRELOAD should not link to our symbols.
# - The clickhouse-odbc-bridge and clickhouse-library-bridge binaries
# should not expose their symbols to ODBC drivers and libraries.
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-export-dynamic")
endif ()
if (OS_DARWIN)
# The `-all_load` flag forces loading of all symbols from all libraries,

4
programs/library-bridge/CMakeLists.txt
View File

@ -13,10 +13,6 @@ set (CLICKHOUSE_LIBRARY_BRIDGE_SOURCES
library-bridge.cpp
)
if (OS_LINUX)
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-export-dynamic")
endif ()
clickhouse_add_executable(clickhouse-library-bridge ${CLICKHOUSE_LIBRARY_BRIDGE_SOURCES})
target_link_libraries(clickhouse-library-bridge PRIVATE

6
programs/odbc-bridge/CMakeLists.txt
View File

@ -15,12 +15,6 @@ set (CLICKHOUSE_ODBC_BRIDGE_SOURCES
validateODBCConnectionString.cpp
)
if (OS_LINUX)
# clickhouse-odbc-bridge is always a separate binary.
# Reason: it must not export symbols from SSL, mariadb-client, etc. to not break ABI compatibility with ODBC drivers.
set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--no-export-dynamic")
endif ()
clickhouse_add_executable(clickhouse-odbc-bridge ${CLICKHOUSE_ODBC_BRIDGE_SOURCES})
target_link_libraries(clickhouse-odbc-bridge PRIVATE