Index: cmake/Modules/AddCompilerRT.cmake
===================================================================
--- cmake/Modules/AddCompilerRT.cmake
+++ cmake/Modules/AddCompilerRT.cmake
@@ -100,8 +100,8 @@
# OBJECT_LIBS <object libraries to use as sources>
# PARENT_TARGET <convenience parent target>)
function(add_compiler_rt_runtime name type)
- if(NOT type MATCHES "^(STATIC|SHARED)$")
- message(FATAL_ERROR "type argument must be STATIC or SHARED")
+ if(NOT type MATCHES "^(OBJECT|STATIC|SHARED)$")
+ message(FATAL_ERROR "type argument must be OBJECT, STATIC or SHARED")
return()
endif()
cmake_parse_arguments(LIB
@@ -133,7 +133,10 @@
message(FATAL_ERROR "Architecture ${arch} can't be targeted")
return()
endif()
- if(type STREQUAL "STATIC")
+ if(type STREQUAL "OBJECT")
+ set(libname "${name}-${arch}")
+ set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX})
+ elseif(type STREQUAL "STATIC")
set(libname "${name}-${arch}")
set(output_name_${libname} ${libname}${COMPILER_RT_OS_SUFFIX})
else()
@@ -186,12 +189,34 @@
set(COMPONENT_OPTION COMPONENT ${libname})
endif()
- add_library(${libname} ${type} ${sources_${libname}})
- set_target_compile_flags(${libname} ${extra_cflags_${libname}})
- set_target_link_flags(${libname} ${extra_link_flags_${libname}})
- set_property(TARGET ${libname} APPEND PROPERTY
- COMPILE_DEFINITIONS ${LIB_DEFS})
- set_target_output_directories(${libname} ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
+ if(type STREQUAL "OBJECT")
+ string(TOUPPER ${CMAKE_BUILD_TYPE} config)
+ set(cflags "${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${config}}")
+ separate_arguments(cflags)
+ add_custom_command(
+ OUTPUT ${COMPILER_RT_LIBRARY_OUTPUT_DIR}/${libname}.o
+ COMMAND ${CMAKE_C_COMPILER} ${sources_${libname}} ${cflags} ${extra_cflags_${libname}} -c -o ${COMPILER_RT_LIBRARY_OUTPUT_DIR}/${libname}.o
+ DEPENDS ${sources_${libname}}
+ COMMENT "Building C object ${libname}.o")
+ add_custom_target(${libname} DEPENDS ${COMPILER_RT_LIBRARY_OUTPUT_DIR}/${libname}.o)
+ install(FILES ${COMPILER_RT_LIBRARY_OUTPUT_DIR}/${libname}.o
+ DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
+ ${COMPONENT_OPTION})
+ else()
+ add_library(${libname} ${type} ${sources_${libname}})
+ set_target_compile_flags(${libname} ${extra_cflags_${libname}})
+ set_target_link_flags(${libname} ${extra_link_flags_${libname}})
+ set_property(TARGET ${libname} APPEND PROPERTY
+ COMPILE_DEFINITIONS ${LIB_DEFS})
+ set_target_output_directories(${libname} ${COMPILER_RT_LIBRARY_OUTPUT_DIR})
+ install(TARGETS ${libname}
+ ARCHIVE DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
+ ${COMPONENT_OPTION}
+ LIBRARY DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
+ ${COMPONENT_OPTION}
+ RUNTIME DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
+ ${COMPONENT_OPTION})
+ endif()
set_target_properties(${libname} PROPERTIES
OUTPUT_NAME ${output_name_${libname}})
set_target_properties(${libname} PROPERTIES FOLDER "Compiler-RT Runtime")
@@ -204,13 +229,6 @@
set_target_properties(${libname} PROPERTIES IMPORT_SUFFIX ".lib")
endif()
endif()
- install(TARGETS ${libname}
- ARCHIVE DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
- ${COMPONENT_OPTION}
- LIBRARY DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
- ${COMPONENT_OPTION}
- RUNTIME DESTINATION ${COMPILER_RT_LIBRARY_INSTALL_DIR}
- ${COMPONENT_OPTION})
# We only want to generate per-library install targets if you aren't using
# an IDE because the extra targets get cluttered in IDEs.
Index: cmake/config-ix.cmake
===================================================================
--- cmake/config-ix.cmake
+++ cmake/config-ix.cmake
@@ -163,6 +163,7 @@
${ARM32} ${ARM64} ${MIPS32} ${MIPS64} ${S390X})
set(ALL_ASAN_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64}
${MIPS32} ${MIPS64} ${PPC64} ${S390X})
+set(ALL_CRT_SUPPORTED_ARCH ${X86} ${X86_64} ${ARM32} ${ARM64})
set(ALL_DFSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64})
set(ALL_LSAN_SUPPORTED_ARCH ${X86} ${X86_64} ${MIPS64} ${ARM64})
set(ALL_MSAN_SUPPORTED_ARCH ${X86_64} ${MIPS64} ${ARM64} ${PPC64})
@@ -381,6 +382,7 @@
ALL_XRAY_SUPPORTED_ARCH
SANITIZER_COMMON_SUPPORTED_ARCH)
else()
+ filter_available_targets(CRT_SUPPORTED_ARCH ${ALL_CRT_SUPPORTED_ARCH})
# Architectures supported by compiler-rt libraries.
filter_available_targets(SANITIZER_COMMON_SUPPORTED_ARCH
${ALL_SANITIZER_COMMON_SUPPORTED_ARCH})
@@ -463,6 +465,12 @@
# TODO: Add builtins support.
+if (CRT_SUPPORTED_ARCH AND OS_NAME MATCHES "Fuchsia")
+ set(COMPILER_RT_HAS_CRT TRUE)
+else()
+ set(COMPILER_RT_HAS_CRT FALSE)
+endif()
+
if (COMPILER_RT_HAS_SANITIZER_COMMON AND DFSAN_SUPPORTED_ARCH AND
OS_NAME MATCHES "Linux")
set(COMPILER_RT_HAS_DFSAN TRUE)
Index: lib/CMakeLists.txt
===================================================================
--- lib/CMakeLists.txt
+++ lib/CMakeLists.txt
@@ -17,6 +17,10 @@
add_subdirectory(builtins)
endif()
+if(COMPILER_RT_BUILD_CRT)
+ add_subdirectory(crt)
+endif()
+
function(compiler_rt_build_runtime runtime)
string(TOUPPER ${runtime} runtime_uppercase)
if(COMPILER_RT_HAS_${runtime_uppercase})
Index: lib/crt/CMakeLists.txt
===================================================================
--- /dev/null
+++ lib/crt/CMakeLists.txt
@@ -0,0 +1,30 @@
+add_compiler_rt_component(crt)
+
+set(SHARED_CFLAGS
+ -DSHARED
+)
+
+foreach(arch ${CRT_SUPPORTED_ARCH})
+ add_compiler_rt_runtime(crtbegin
+ OBJECT
+ ARCHS ${arch}
+ SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtbegin.c
+ PARENT_TARGET crt)
+ add_compiler_rt_runtime(crtbeginS
+ OBJECT
+ ARCHS ${arch}
+ SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtbegin.c
+ CFLAGS ${SHARED_CFLAGS}
+ PARENT_TARGET crt)
+ add_compiler_rt_runtime(crtend
+ OBJECT
+ ARCHS ${arch}
+ SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtend.c
+ PARENT_TARGET crt)
+ add_compiler_rt_runtime(crtendS
+ OBJECT
+ ARCHS ${arch}
+ SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/crtend.c
+ CFLAGS ${SHARED_CFLAGS}
+ PARENT_TARGET crt)
+endforeach()
Index: lib/crt/crtbegin.c
===================================================================
--- /dev/null
+++ lib/crt/crtbegin.c
@@ -0,0 +1,15 @@
+/* ===-- crtbegin.c - Provide __dso_handle ---------------------------------===
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+#ifdef SHARED
+__attribute__((visibility("hidden"))) void *__dso_handle = &__dso_handle;
+#else
+__attribute__((visibility("hidden"))) void *__dso_handle = (void *)0;
+#endif
Index: lib/crt/crtend.c
===================================================================
--- /dev/null
+++ lib/crt/crtend.c
@@ -0,0 +1,12 @@
+/* ===-- crtend.c - Provide .eh_frame --------------------------------------===
+ *
+ * The LLVM Compiler Infrastructure
+ *
+ * This file is dual licensed under the MIT and the University of Illinois Open
+ * Source Licenses. See LICENSE.TXT for details.
+ *
+ * ===----------------------------------------------------------------------===
+ */
+
+static const int __FRAME_END__[]
+ __attribute__((section(".eh_frame"), aligned(4), used)) = {};
Index: test/CMakeLists.txt
===================================================================
--- test/CMakeLists.txt
+++ test/CMakeLists.txt
@@ -42,6 +42,9 @@
if(COMPILER_RT_HAS_ASAN)
add_subdirectory(asan)
endif()
+ if(COMPILER_RT_HAS_CRT)
+ add_subdirectory(crt)
+ endif()
if(COMPILER_RT_HAS_DFSAN)
add_subdirectory(dfsan)
endif()
Index: test/crt/CMakeLists.txt
===================================================================
--- /dev/null
+++ test/crt/CMakeLists.txt
@@ -0,0 +1,31 @@
+set(CRT_LIT_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR})
+
+set(CRT_TESTSUITES)
+
+set(CRT_TEST_DEPS "")
+
+if(NOT COMPILER_RT_STANDALONE_BUILD AND COMPILER_RT_BUILD_CRT AND
+ COMPILER_RT_HAS_CRT)
+ list(APPEND CRT_TEST_DEPS crt)
+endif()
+
+set(CRT_TEST_ARCH ${CRT_SUPPORTED_ARCH})
+if (COMPILER_RT_BUILD_CRT AND COMPILER_RT_HAS_CRT)
+ foreach(arch ${CRT_TEST_ARCH})
+ set(CRT_TEST_TARGET_ARCH ${arch})
+ string(TOLOWER "-${arch}-${OS_NAME}" CRT_TEST_CONFIG_SUFFIX)
+ get_test_cc_for_arch(${arch} CRT_TEST_TARGET_CC CRT_TEST_TARGET_CFLAGS)
+ string(TOUPPER ${arch} ARCH_UPPER_CASE)
+ set(CONFIG_NAME ${ARCH_UPPER_CASE}${OS_NAME}Config)
+
+ configure_lit_site_cfg(
+ ${CMAKE_CURRENT_SOURCE_DIR}/lit.site.cfg.in
+ ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME}/lit.site.cfg)
+ list(APPEND CRT_TESTSUITES ${CMAKE_CURRENT_BINARY_DIR}/${CONFIG_NAME})
+ endforeach()
+endif()
+
+add_lit_testsuite(check-crt "Running the CRT tests"
+ ${CRT_TESTSUITES}
+ DEPENDS ${CRT_TEST_DEPS})
+set_target_properties(check-crt PROPERTIES FOLDER "Compiler-RT Misc")
Index: test/crt/dso_handle.cpp
===================================================================
--- /dev/null
+++ test/crt/dso_handle.cpp
@@ -0,0 +1,19 @@
+// RUN: %clangxx -c %s -o %s.o
+// RUN: %clangxx -o %t -nostartfiles -nostdlib -nodefaultlibs %crt1 %crti %crtbegin %s.o -lc -lm -lgcc %crtend %crtn
+// RUN: %run %t 2>&1 | FileCheck %s
+
+#include <stdio.h>
+
+struct A {
+ A() {}
+ ~A() {
+ // CHECK: ~A()
+ printf("~A()");
+ }
+};
+
+A a;
+
+int main() {
+ return 0;
+}
Index: test/crt/lit.cfg
===================================================================
--- /dev/null
+++ test/crt/lit.cfg
@@ -0,0 +1,55 @@
+# -*- Python -*-
+
+import os
+import subprocess
+
+# Setup config name.
+config.name = 'CRT' + config.name_suffix
+
+# Setup source root.
+config.test_source_root = os.path.dirname(__file__)
+
+
+def get_library_path(clang, file):
+ cmd = subprocess.Popen([clang, '-print-file-name=%s' % file],
+ stdout=subprocess.PIPE,
+ env=config.environment)
+ if not cmd.stdout:
+ lit_config.fatal("Couldn't find the library path for '%s'" % file)
+ dir = cmd.stdout.read().strip()
+ if sys.platform in ['win32'] and execute_external:
+ # Don't pass dosish path separator to msys bash.exe.
+ dir = dir.replace('\\', '/')
+ # Ensure the result is an ascii string, across Python2.5+ - Python3.
+ return str(dir.decode('ascii'))
+
+
+def build_invocation(compile_flags):
+ return ' ' + ' '.join([config.clang] + compile_flags) + ' '
+
+
+# Setup substitutions.
+config.substitutions.append(
+ ('%clang ', build_invocation([config.target_cflags])))
+config.substitutions.append(
+ ('%clangxx ',
+ build_invocation(config.cxx_mode_flags + [config.target_cflags])))
+
+base_lib = os.path.join(config.compiler_rt_libdir, "%s.o")
+config.substitutions.append(('%crtbegin', base_lib % "crtbegin"))
+config.substitutions.append(('%crtbeginS', base_lib % "crtbeginS"))
+config.substitutions.append(('%crtend', base_lib % "crtend"))
+config.substitutions.append(('%crtendS', base_lib % "crtendS"))
+
+config.substitutions.append(
+ ('%crt1', get_library_path(config.clang, 'crt1.o')))
+config.substitutions.append(
+ ('%crti', get_library_path(config.clang, 'crti.o')))
+config.substitutions.append(
+ ('%crtn', get_library_path(config.clang, 'crtn.o')))
+
+# Default test suffixes.
+config.suffixes = ['.c', '.cc', '.cpp']
+
+if config.host_os not in ['Linux']:
+ config.unsupported = True
Index: test/crt/lit.site.cfg.in
===================================================================
--- /dev/null
+++ test/crt/lit.site.cfg.in
@@ -0,0 +1,13 @@
+@LIT_SITE_CFG_IN_HEADER@
+
+# Tool-specific config options.
+config.name_suffix = "@CRT_TEST_CONFIG_SUFFIX@"
+config.crt_lit_source_dir = "@CRT_LIT_SOURCE_DIR@"
+config.target_cflags = "@CRT_TEST_TARGET_CFLAGS@"
+config.target_arch = "@CRT_TEST_TARGET_ARCH@"
+
+# Load common config for all compiler-rt lit tests
+lit_config.load_config(config, "@COMPILER_RT_BINARY_DIR@/test/lit.common.configured")
+
+# Load tool-specific config that would do the real work.
+lit_config.load_config(config, "@CRT_LIT_SOURCE_DIR@/lit.cfg")