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libffi/configure_options.cmake
T

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12 KiB
CMake
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include(CheckCSourceCompiles)
include(CheckCSourceRuns)
include(CheckFunctionExists)
include(CheckIncludeFile)
include(CheckIncludeFiles)
include(CheckSymbolExists)
include(CheckTypeSize)
# options in AC counterpart can be overriden from command-line
# e.g.: cmake .. -DFFI_MMAP_EXEC_EMUTRAMP_PAX=1 -DVERSION=X.Y
if(NOT DEFINED VERSION)
set(VERSION 3.x-dev)
endif()
set(PACKAGE libffi)
set(PACKAGE_BUGREPORT http://github.com/libffi/libffi/issues)
set(PACKAGE_NAME ${PACKAGE})
set(PACKAGE_STRING "${PACKAGE} ${VERSION}")
set(PACKAGE_TARNAME ${PACKAGE})
set(PACKAGE_URL http://github.com/libffi/libffi)
set(PACKAGE_VERSION ${VERSION})
set(TARGET ${TARGET_PLATFORM})
set(LT_OBJDIR .libs/)
check_type_size (size_t SIZEOF_SIZE_T)
if(SIZEOF_SIZE_T STREQUAL "")
set(size_t "unsinged int")
endif()
if(MSVC)
get_filename_component(COMPILER_DIR "${CMAKE_C_COMPILER}" DIRECTORY)
else()
enable_language(ASM)
endif()
set(FFI_EXEC_TRAMPOLINE_TABLE 0)
if(TARGET_PLATFORM STREQUAL X86_WIN64)
if(MSVC)
list(APPEND WIN_ASSEMBLY_LIST src/x86/win64_intel.S)
enable_language(ASM_MASM)
else()
list(APPEND SOURCES_LIST src/x86/win64.S)
endif()
list(APPEND SOURCES_LIST src/x86/ffiw64.c)
set(TARGETDIR x86)
elseif(TARGET_PLATFORM STREQUAL X86_64)
list(APPEND SOURCES_LIST
src/x86/ffi64.c
src/x86/unix64.S)
if(SIZEOF_SIZE_T EQUAL 4 AND TARGET_PLATFORM MATCHES X86.*)
set(CMAKE_REQUIRED_FLAGS "-Werror")
check_c_source_compiles(
"
int main(void)
{
return __x86_64__;
}
"
TARGET_X32)
set(CMAKE_REQUIRED_FLAGS)
endif()
if(NOT TARGET_X32)
list(APPEND SOURCES_LIST
src/x86/ffiw64.c
src/x86/win64.S)
endif()
set(TARGETDIR x86)
elseif(TARGET_PLATFORM MATCHES X86.*)
if(MSVC)
list(APPEND WIN_ASSEMBLY_LIST src/x86/sysv_intel.S)
set (CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH:NO")
enable_language(ASM_MASM)
else()
list(APPEND SOURCES_LIST src/x86/sysv.S)
endif()
list(APPEND SOURCES_LIST src/x86/ffi.c)
set(TARGETDIR x86)
elseif(TARGET_PLATFORM MATCHES ARM_WIN64|AARCH64)
if(TARGET_PLATFORM STREQUAL ARM_WIN64)
set(CMAKE_ASM_MASM_COMPILER ${COMPILER_DIR}/armasm64.exe)
set(CMAKE_ASM_COMPILER ${CMAKE_ASM_MASM_COMPILER})
list(APPEND WIN_ASSEMBLY_LIST src/aarch64/win64_armasm.S)
file(COPY src/aarch64/ffitarget.h DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/include)
enable_language(ASM)
else()
list(APPEND SOURCES_LIST src/aarch64/sysv.S)
endif()
list(APPEND SOURCES_LIST src/aarch64/ffi.c)
set(TARGETDIR aarch64)
elseif(TARGET_PLATFORM MATCHES ARM.*)
if(MSVC)
set(CMAKE_ASM_MASM_COMPILER ${COMPILER_DIR}/armasm.exe)
set(CMAKE_ASM_COMPILER ${CMAKE_ASM_MASM_COMPILER})
list(APPEND WIN_ASSEMBLY_LIST src/arm/sysv_msvc_arm32.S)
file(COPY src/arm/ffitarget.h DESTINATION ${CMAKE_CURRENT_BINARY_DIR}/include)
enable_language(ASM)
else()
list(APPEND SOURCES_LIST src/arm/sysv.S)
endif()
list(APPEND SOURCES_LIST src/arm/ffi.c)
set(TARGETDIR arm)
endif()
if(CMAKE_SYSTEM_NAME STREQUAL Darwin AND TARGET_PLATFORM STREQUAL AARCH64)
set(FFI_EXEC_TRAMPOLINE_TABLE 1)
elseif(CMAKE_SYSTEM_NAME STREQUAL Darwin OR TARGET_PLATFORM MATCHES .*FREEBSD.*)
set(FFI_MMAP_EXEC_WRIT 1)
endif()
check_type_size (double SIZEOF_DOUBLE)
check_type_size ("long double" SIZEOF_LONG_DOUBLE)
if(SIZEOF_LONG_DOUBLE STREQUAL "")
set(HAVE_LONG_DOUBLE 0)
if(DEFINED HAVE_LONG_DOUBLE_VARIANT)
set(HAVE_LONG_DOUBLE 1)
elseif(NOT SIZEOF_DOUBLE EQUAL SIZEOF_LONG_DOUBLE)
set(HAVE_LONG_DOUBLE 1)
endif()
else()
set(HAVE_LONG_DOUBLE 1)
endif()
check_function_exists(alloca C_ALLOCA)
check_function_exists (mmap HAVE_MMAP)
check_symbol_exists (MAP_ANON sys/mman.h HAVE_MMAP_ANON)
check_c_source_runs(
"
#include <stdlib.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <fcntl.h>
int main(void) {
int devzero = open(\"/dev/zero\", O_RDWR);
return devzero == -1 || mmap(NULL, 4096, PROT_READ|PROT_WRITE, MAP_SHARED, devzero, 0) == (void *)-1 ? 1 : 0;
}" HAVE_MMAP_DEV_ZERO)
check_include_file(alloca.h HAVE_ALLOCA_H)
check_c_source_compiles(
"
#include <alloca.h>
int main()
{
char* x = alloca(1024);
return 0;
}
"
HAVE_ALLOCA)
check_include_file(dlfcn.h HAVE_DLFCN_H)
check_include_file(inttypes.h HAVE_INTTYPES_H)
check_include_file(memory.h HAVE_MEMORY_H)
check_include_file(stdint.h HAVE_STDINT_H)
check_include_file(stdlib.h HAVE_STDLIB_H)
check_include_file(strings.h HAVE_STRINGS_H)
check_include_file(string.h HAVE_STRING_H)
check_include_file(sys/mman.h HAVE_SYS_MMAN_H)
check_include_file(sys/stat.h HAVE_SYS_STAT_H)
check_include_file(sys/types.h HAVE_SYS_TYPES_H)
check_include_file(unistd.h HAVE_UNISTD_H)
check_include_files("stdlib.h;stdarg.h;string.h;float.h" STDC_HEADERS)
check_symbol_exists(memcpy string.h HAVE_MEMCPY)
set(CMAKE_REQUIRED_DEFINITIONS "-D_GNU_SOURCE")
check_symbol_exists(mkostemp stdlib.h HAVE_MKOSTEMP)
set(CMAKE_REQUIRED_DEFINITIONS)
if (NOT MSVC)
find_program(OBJDUMP objdump)
find_program(NM NAMES nm llvm-nm)
if(OBJDUMP)
set(DUMPTOOL_CMD "objdump -t -h") # on macOS -t -h can't be combined
set(EH_FRAME_GREP_EXPR "grep -A1 -n eh_frame | grep -q READONLY")
elseif(NM)
set(DUMPTOOL_CMD "nm -a")
set(EH_FRAME_GREP_EXPR "grep -q ' r \.eh_frame'")
endif()
execute_process(
COMMAND
sh -c "echo 'extern void foo (void); void bar (void) { foo (); foo (); }' | ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} -xc -c -fpic -fexceptions -o conftest.o - 2>&1;
${DUMPTOOL_CMD} conftest.o 2>&1 | ${EH_FRAME_GREP_EXPR}"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE HAVE_RO_EH_FRAME_EXITCODE)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/conftest.*)
if(HAVE_RO_EH_FRAME_EXITCODE EQUAL "0")
set(HAVE_RO_EH_FRAME 1)
set(EH_FRAME_FLAGS "a")
message(STATUS "Checking if .eh_frame section is read-only - yes")
else()
set(EH_FRAME_FLAGS "aw")
message(STATUS "Checking if .eh_frame section is read-only - no")
endif()
execute_process(
COMMAND sh -c "echo '.text; foo: nop; .data; .long foo-.; .text' | ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} -xassembler -c -o conftest.o - 2>&1"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE HAVE_AS_X86_PCREL_EXITCODE)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/conftest.*)
if(HAVE_AS_X86_PCREL_EXITCODE EQUAL "0")
set(HAVE_AS_X86_PCREL 1)
message(STATUS "Checking HAVE_AS_X86_PCREL - yes")
else()
message(STATUS "Checking HAVE_AS_X86_PCREL - no")
endif()
execute_process(
COMMAND
sh -c "echo '.text;.globl foo;foo:;jmp bar;.section .eh_frame,\"a\",@unwind;bar:' | ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} -xassembler -Wa,--fatal-warnings -c -o conftest.o - 2>&1 &&
echo 'extern void foo();int main(){foo();}' | ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} conftest.o -xc - 2>&1"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE HAVE_AS_X86_64_UNWIND_SECTION_TYPE_EXITCODE)
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/conftest.*)
if(HAVE_AS_X86_64_UNWIND_SECTION_TYPE_EXITCODE EQUAL "0")
set(HAVE_AS_X86_64_UNWIND_SECTION_TYPE 1)
message(STATUS "Checking HAVE_AS_X86_64_UNWIND_SECTION_TYPE - yes")
else()
message(STATUS "Checking HAVE_AS_X86_64_UNWIND_SECTION_TYPE - no")
endif()
execute_process(
COMMAND sh -c "echo 'int __attribute__ ((visibility (\"hidden\"))) foo(void){return 1;}' | ${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} -xc -Werror -S -o- - 2>&1 |
grep -q '\\.hidden.*foo'"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE HAVE_HIDDEN_VISIBILITY_ATTRIBUTE_EXITCODE)
if(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE_EXITCODE EQUAL "0")
set(HAVE_HIDDEN_VISIBILITY_ATTRIBUTE 1)
message(STATUS "Checking HAVE_HIDDEN_VISIBILITY_ATTRIBUTE - yes")
else()
message(STATUS "Checking HAVE_HIDDEN_VISIBILITY_ATTRIBUTE - no")
endif()
endif()
file(WRITE ${CMAKE_CURRENT_BINARY_DIR}/conftest.c "void nm_test_func(){} int main(){nm_test_func();return 0;}")
if(MSVC)
execute_process(
COMMAND "${CMAKE_C_COMPILER}" ${CMAKE_C_FLAGS} /c conftest.c
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE SYMBOL_UNDERSCORE_EXITCODE)
if(SYMBOL_UNDERSCORE_EXITCODE EQUAL "0")
execute_process(
COMMAND "${COMPILER_DIR}/dumpbin.exe" /ALL /RAWDATA:NONE conftest.obj | findstr _nm_test_func > NUL
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE SYMBOL_UNDERSCORE_EXITCODE)
endif()
elseif()
execute_process(
COMMAND sh -c "${CMAKE_C_COMPILER} ${CMAKE_C_FLAGS} -xc -c -o conftest.o conftest.c 2>&1;
${DUMPTOOL_CMD} conftest.o 2>&1 | grep -q _nm_test_func"
WORKING_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}
OUTPUT_VARIABLE IGNORE
ERROR_VARIABLE IGNORE
RESULT_VARIABLE SYMBOL_UNDERSCORE_EXITCODE)
endif()
file(REMOVE ${CMAKE_CURRENT_BINARY_DIR}/conftest.*)
if(SYMBOL_UNDERSCORE_EXITCODE EQUAL "0")
set(SYMBOL_UNDERSCORE 1)
message(STATUS "Checking if symbols are underscored - yes")
else()
message(STATUS "Checking if symbols are underscored - no")
endif()
check_c_source_compiles(
"
asm (\".cfi_sections\\\\n\\\\t.cfi_startproc\\\\n\\\\t.cfi_endproc\");
int main(void)
{
return 0;
}
"
HAVE_AS_CFI_PSEUDO_OP)
configure_file(include/ffi.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/ffi.h)
configure_file(include/fficonfig.h.in ${CMAKE_CURRENT_BINARY_DIR}/include/fficonfig.h)
foreach(ASM_PATH IN LISTS WIN_ASSEMBLY_LIST)
get_filename_component(ASM_FILENAME "${ASM_PATH}" NAME_WE)
get_filename_component(ASM_DIRNAME "${ASM_PATH}" DIRECTORY)
add_custom_command(
COMMAND "${CMAKE_C_COMPILER}" /nologo /P /EP /I. /I"${CMAKE_CURRENT_SOURCE_DIR}/${ASM_DIRNAME}" /Fi"${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm" /Iinclude
/I"${CMAKE_CURRENT_SOURCE_DIR}/include" "${CMAKE_CURRENT_SOURCE_DIR}/${ASM_PATH}"
DEPENDS ${CMAKE_CURRENT_SOURCE_DIR}/${ASM_PATH}
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm
COMMENT "Preprocessing ${CMAKE_CURRENT_SOURCE_DIR}/${ASM_PATH}. Outputting to ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm")
set_source_files_properties("${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm" PROPERTIES GENERATED TRUE)
if(TARGET_PLATFORM MATCHES X86.*)
list(APPEND SOURCES_LIST ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm)
else()
add_custom_command(
COMMAND "${CMAKE_ASM_MASM_COMPILER}" /Fo "${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.obj" "${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm"
DEPENDS ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm
OUTPUT ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.obj
COMMENT "Assembling ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.asm")
set_source_files_properties(${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.obj PROPERTIES EXTERNAL_OBJECT TRUE)
list(APPEND OBJECTS_LIST ${CMAKE_CURRENT_BINARY_DIR}/${ASM_FILENAME}.obj)
endif()
endforeach()
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