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include(CheckLibraryExists)
include(GNUInstallDirs)
include(ExtendPath)
string(REPLACE "-Wl,-z,defs" "" CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS}")
add_custom_target(gcc_s_ver ALL DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/gcc_s.ver")
set(LLVM_LIBGCC_GCC_S_VER "${CMAKE_CURRENT_BINARY_DIR}/gcc_s.ver")
add_custom_target(gcc_s.ver ALL
DEPENDS "${CMAKE_CURRENT_SOURCE_DIR}/gcc_s.ver"
COMMAND
"${CMAKE_C_COMPILER}"
"-E"
"-xc" "${CMAKE_CURRENT_SOURCE_DIR}/gcc_s.ver"
"-o" "${CMAKE_CURRENT_BINARY_DIR}/gcc_s.ver"
)
set_target_properties(gcc_s.ver PROPERTIES
OUTPUT_PATH "${CMAKE_CURRENT_BINARY_DIR}/gcc_s.ver")
add_library(libgcc_s SHARED blank.c)
add_dependencies(libgcc_s gcc_s_ver)
set_target_properties(libgcc_s
PROPERTIES
LINKER_LANGUAGE C
OUTPUT_NAME "unwind"
VERSION "1.0"
SOVERSION "1"
POSITION_INDEPENDENT_CODE ON)
string(REGEX MATCH "[^-]+" LLVM_LIBGCC_TARGET_ARCH ${CMAKE_C_COMPILER_TARGET})
target_link_libraries(libgcc_s PRIVATE
$<TARGET_OBJECTS:unwind_static>
$<TARGET_OBJECTS:clang_rt.builtins-${LLVM_LIBGCC_TARGET_ARCH}>
)
target_link_options(libgcc_s PRIVATE
-nostdlib
-Wl,--version-script,$<TARGET_PROPERTY:gcc_s.ver,OUTPUT_PATH>)
check_library_exists(m sin "" LLVM_LIBGCC_HAS_LIBM)
target_link_libraries(libgcc_s PRIVATE
$<$<BOOL:LLVM_LIBGCC_HAS_LIBM>:m>
c
)
extend_path(LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT "${CMAKE_INSTALL_PREFIX}" "${LIBUNWIND_INSTALL_LIBRARY_DIR}")
#string(REPLACE "${CMAKE_INSTALL_FULL_LIBDIR}/" "" LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT "${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}")
install(TARGETS libgcc_s
LIBRARY DESTINATION "${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}" COMPONENT unwind
ARCHIVE DESTINATION "${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}" COMPONENT unwind
RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}" COMPONENT unwind)
get_compiler_rt_install_dir(${LLVM_LIBGCC_TARGET_ARCH} install_dir_builtins)
string(REGEX REPLACE "^lib/" "" install_dir_builtins "${install_dir_builtins}")
string(FIND "${install_dir_builtins}" "clang" install_path_contains_triple)
if(install_path_contains_triple EQUAL -1)
set(builtins_suffix "-${LLVM_LIBGCC_TARGET_ARCH}")
else()
string(PREPEND install_dir_builtins "../")
endif()
install(CODE "execute_process(
COMMAND \"\${CMAKE_COMMAND}\" -E
create_symlink ${install_dir_builtins}/libclang_rt.builtins${builtins_suffix}.a libgcc.a
WORKING_DIRECTORY \"\$ENV{DESTDIR}${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}\")"
COMPONENT unwind)
install(CODE "execute_process(
COMMAND \"\${CMAKE_COMMAND}\" -E
create_symlink libunwind.a libgcc_eh.a
WORKING_DIRECTORY \"\$ENV{DESTDIR}${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}\")"
COMPONENT unwind)
install(CODE "execute_process(
COMMAND \"\${CMAKE_COMMAND}\" -E
create_symlink libunwind.so libgcc_s.so.1.0
WORKING_DIRECTORY \"\$ENV{DESTDIR}${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}\")"
COMPONENT unwind)
install(CODE "execute_process(
COMMAND \"\${CMAKE_COMMAND}\" -E
create_symlink libgcc_s.so.1.0 libgcc_s.so.1
WORKING_DIRECTORY \"\$ENV{DESTDIR}${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}\")"
COMPONENT unwind)
install(CODE "execute_process(
COMMAND \"\${CMAKE_COMMAND}\" -E
create_symlink libgcc_s.so.1 libgcc_s.so
WORKING_DIRECTORY \"\$ENV{DESTDIR}${LLVM_LIBGCC_LIBUNWIND_STATIC_ROOT}\")"
COMPONENT unwind)
|
