Moar

Author: alesapin

CMakeLists.txt

@@ -115,19 +115,6 @@ if (CH_ODBC_RUNTIME_LINK_STATIC)
                 string (REPLACE "-MD" "-MT" ${var} "${${var}}")
             endforeach ()
         endforeach ()
-    elseif (
-        CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR
-        (CMAKE_CXX_COMPILER_ID STREQUAL "Clang" AND NOT APPLE)
-    )
-        if (NOT APPLE AND NOT WIN32 AND NOT ARCH_FREEBSD)
-            set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,--whole-archive -static-libgcc -static-libstdc++ -Wl,--no-whole-archive")
-            set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -Wl,--whole-archive -static-libgcc -static-libstdc++ -Wl,--no-whole-archive")
-        else ()
-            set (CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -static-libgcc -static-libstdc++")
-            set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -static-libgcc -static-libstdc++")
-        endif ()
-    else ()
-        message (WARNING "linking with compiler and language runtime statically is not supported in the current build environment")
     endif()
 endif ()
 

cmake/linux/default_libs.cmake

@@ -1,6 +1,8 @@
 # Set standard, system and compiler libraries explicitly.
 # This is intended for more control of what we are linking.
 
+set (DEFAULT_LIBS "-nodefaultlibs")
+
 # We need builtins from Clang's RT even without libcxx - for ubsan+int128.
 # See https://bugs.llvm.org/show_bug.cgi?id=16404
 execute_process (COMMAND
@@ -38,6 +40,8 @@ set(THREADS_PREFER_PTHREAD_FLAG ON)
 find_package(Threads REQUIRED)
 
 include (cmake/cxx.cmake)
+include (cmake/unwind.cmake)
+
 link_libraries(global-group)
 
 target_link_libraries(global-group INTERFACE

cmake/unwind.cmake

@@ -0,0 +1 @@
+add_subdirectory(contrib/libunwind-cmake)

contrib/libunwind

@@ -0,0 +1 @@
+Subproject commit 601db0b0e03018c01710470a37703b618f9cf08b

contrib/libunwind-cmake/CMakeLists.txt

@@ -0,0 +1,51 @@
+set(LIBUNWIND_SOURCE_DIR "${CMAKE_SOURCE_DIR}/contrib/libunwind")
+
+set(LIBUNWIND_CXX_SOURCES
+    "${LIBUNWIND_SOURCE_DIR}/src/libunwind.cpp"
+    "${LIBUNWIND_SOURCE_DIR}/src/Unwind-EHABI.cpp"
+    "${LIBUNWIND_SOURCE_DIR}/src/Unwind-seh.cpp")
+
+set(LIBUNWIND_C_SOURCES
+    "${LIBUNWIND_SOURCE_DIR}/src/UnwindLevel1.c"
+    "${LIBUNWIND_SOURCE_DIR}/src/UnwindLevel1-gcc-ext.c"
+    "${LIBUNWIND_SOURCE_DIR}/src/Unwind-sjlj.c"
+    # Use unw_backtrace to override libgcc's backtrace symbol for better ABI compatibility
+    unwind-override.c)
+set_source_files_properties(${LIBUNWIND_C_SOURCES} PROPERTIES COMPILE_FLAGS "-std=c99")
+
+set(LIBUNWIND_ASM_SOURCES
+    "${LIBUNWIND_SOURCE_DIR}/src/UnwindRegistersRestore.S"
+    "${LIBUNWIND_SOURCE_DIR}/src/UnwindRegistersSave.S")
+
+enable_language(ASM)
+
+set(LIBUNWIND_SOURCES
+    ${LIBUNWIND_CXX_SOURCES}
+    ${LIBUNWIND_C_SOURCES}
+    ${LIBUNWIND_ASM_SOURCES})
+
+add_library(unwind ${LIBUNWIND_SOURCES})
+set_target_properties(unwind PROPERTIES FOLDER "contrib/libunwind-cmake")
+
+target_include_directories(unwind SYSTEM BEFORE PUBLIC $<BUILD_INTERFACE:${LIBUNWIND_SOURCE_DIR}/include>)
+target_compile_definitions(unwind PRIVATE -D_LIBUNWIND_NO_HEAP=1)
+target_compile_definitions(unwind PRIVATE -D_LIBUNWIND_REMEMBER_STACK_ALLOC=1)
+# NOTE: from this macros sizeof(unw_context_t)/sizeof(unw_cursor_t) is depends, so it should be set always
+target_compile_definitions(unwind PUBLIC -D_LIBUNWIND_IS_NATIVE_ONLY)
+
+# We should enable optimizations (otherwise it will be too slow in debug)
+# and disable sanitizers (otherwise infinite loop may happen)
+target_compile_options(unwind PRIVATE -O3 -fno-exceptions -funwind-tables -fno-sanitize=all $<$<COMPILE_LANGUAGE:CXX>:-nostdinc++ -fno-rtti>)
+
+target_compile_options(unwind PRIVATE -Wno-unused-but-set-variable)
+
+# The library is using register variables that are bound to specific registers
+# Example: DwarfInstructions.hpp: register unsigned long long x16 __asm("x16") = cfa;
+target_compile_options(unwind PRIVATE "$<$<COMPILE_LANGUAGE:CXX>:-Wno-register>")
+
+install(
+    TARGETS unwind
+    EXPORT global
+    LIBRARY DESTINATION lib
+    ARCHIVE DESTINATION lib
+)

contrib/libunwind-cmake/unwind-override.c

@@ -0,0 +1,10 @@
+#include <libunwind.h>
+
+/// On MacOS this function will be replaced with a dynamic symbol
+/// from the system library.
+#if !defined(OS_DARWIN)
+int backtrace(void ** buffer, int size)
+{
+    return unw_backtrace(buffer, size);
+}
+#endif

driver/CMakeLists.txt

@@ -172,7 +172,9 @@ target_link_libraries (${libname}-impl
 )
 
 if (ARCH_LINUX)
-    target_link_libraries (${libname}-impl PUBLIC ch_contrib::unixodbc ch_contrib::nanodbc)
+    target_link_libraries (${libname}-impl
+        PUBLIC ch_contrib::unixodbc
+        PUBLIC ch_contrib::nanodbc)
 else()
     target_link_libraries (${libname}-impl PUBLIC ODBC::Driver)
 endif()

driver/test/CMakeLists.txt

@@ -83,7 +83,7 @@ function (declare_odbc_test_targets libname UNICODE)
     )
 
     if (ARCH_LINUX)
-        target_link_libraries (${libname}-impl PUBLIC ch_contrib::unixodbc ch_contrib:nanodbc)
+        target_link_libraries (${libname}-impl PUBLIC ch_contrib::unixodbc ch_contrib::nanodbc)
     else()
         target_link_libraries (${libname}-impl PUBLIC ODBC::App)
     endif()