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clang-p2996/openmp/runtime/cmake/LibompMicroTests.cmake
Dimitry Andric 956168c802 Ensure correct pthread flags and libraries are used 
On most platforms, certain compiler and linker flags have to be passed
when using pthreads, otherwise linking against libomp.so might fail with
undefined references to several pthread functions.

Use CMake's `find_package(Threads)` to determine these for standalone
builds, or take them (and optionally modify them) from the top-level
LLVM cmake files.

Also, On FreeBSD, ensure that libomp.so is linked against libm.so,
similar to NetBSD.

Adjust test cases with hardcoded `-lpthread` flag to use the common
build flags, which should now have the required pthread flags.

Reviewers: emaste, jlpeyton, krytarowski, mgorny, protze.joachim, Hahnfeld

Reviewed By: Hahnfeld

Subscribers: AndreyChurbanov, tra, EricWF, Hahnfeld, jfb, jdoerfert, openmp-commits

Tags: #openmp

Differential Revision: https://reviews.llvm.org/D59451

llvm-svn: 357618
2019-04-03 18:11:36 +00:00

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#
#//===----------------------------------------------------------------------===//
#//
#// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
#// See https://llvm.org/LICENSE.txt for license information.
#// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
#//
#//===----------------------------------------------------------------------===//
#
# The following micro-tests are small tests to perform on the library just created.
# There are currently five micro-tests:
# (1) test-touch
# - Compile and run a small program using newly created libomp library
# - Fails if test-touch.c does not compile or if test-touch.c does not run after compilation
# - Program dependencies: gcc or g++, grep, bourne shell
# - Available for all Unix,Mac,Windows builds. Not available on Intel(R) MIC Architecture builds.
# (2) test-relo
# - Tests dynamic libraries for position-dependent code (can not have any position dependent code)
# - Fails if TEXTREL is in output of readelf -d libomp.so command
# - Program dependencies: readelf, grep, bourne shell
# - Available for Unix, Intel(R) MIC Architecture dynamic library builds. Not available otherwise.
# (3) test-execstack
# - Tests if stack is executable
# - Fails if stack is executable. Should only be readable and writable. Not exectuable.
# - Program dependencies: perl, readelf
# - Available for Unix dynamic library builds. Not available otherwise.
# (4) test-instr (Intel(R) MIC Architecutre only)
# - Tests Intel(R) MIC Architecture libraries for valid instruction set
# - Fails if finds invalid instruction for Intel(R) MIC Architecture (wasn't compiled with correct flags)
# - Program dependencies: perl, objdump
# - Available for Intel(R) MIC Architecture and i386 builds. Not available otherwise.
# (5) test-deps
# - Tests newly created libomp for library dependencies
# - Fails if sees a dependence not listed in td_exp variable below
# - Program dependencies: perl, (unix)readelf, (mac)otool[64], (windows)link.exe
# - Available for Unix,Mac,Windows, Intel(R) MIC Architecture dynamic builds and Windows
# static builds. Not available otherwise.
# get library location
if(WIN32)
get_target_property(LIBOMP_OUTPUT_DIRECTORY omp RUNTIME_OUTPUT_DIRECTORY)
get_target_property(LIBOMPIMP_OUTPUT_DIRECTORY ompimp ARCHIVE_OUTPUT_DIRECTORY)
if(NOT LIBOMPIMP_OUTPUT_DIRECTORY)
set(LIBOMPIMP_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
endif()
else()
get_target_property(LIBOMP_OUTPUT_DIRECTORY omp LIBRARY_OUTPUT_DIRECTORY)
endif()
if(NOT LIBOMP_OUTPUT_DIRECTORY)
set(LIBOMP_OUTPUT_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR})
endif()
# test-touch
find_program(LIBOMP_SHELL sh)
if(WIN32)
if(LIBOMP_SHELL)
set(libomp_test_touch_targets test-touch-md/.success test-touch-mt/.success)
endif()
# pick test-touch compiler
set(libomp_test_touch_compiler ${CMAKE_C_COMPILER})
# test-touch compilation flags
libomp_append(libomp_test_touch_cflags /nologo)
libomp_append(libomp_test_touch_libs ${LIBOMPIMP_OUTPUT_DIRECTORY}/${LIBOMP_IMP_LIB_FILE})
if(${IA32})
libomp_append(libomp_test_touch_ldflags /safeseh)
endif()
else() # (Unix based systems, Intel(R) MIC Architecture, and Mac)
if(LIBOMP_SHELL)
set(libomp_test_touch_targets test-touch-rt/.success)
endif()
# pick test-touch compiler
if(${LIBOMP_USE_STDCPPLIB})
set(libomp_test_touch_compiler ${CMAKE_CXX_COMPILER})
else()
set(libomp_test_touch_compiler ${CMAKE_C_COMPILER})
endif()
# test-touch compilation flags
libomp_append(libomp_test_touch_libs "${CMAKE_THREAD_LIBS_INIT}")
if(${IA32})
libomp_append(libomp_test_touch_cflags -m32 LIBOMP_HAVE_M32_FLAG)
endif()
libomp_append(libomp_test_touch_libs ${LIBOMP_OUTPUT_DIRECTORY}/${LIBOMP_LIB_FILE})
libomp_append(libomp_test_touch_libs "${LIBOMP_HWLOC_LIBRARY}" LIBOMP_USE_HWLOC)
if(APPLE)
set(libomp_test_touch_env "DYLD_LIBRARY_PATH=.:${LIBOMP_OUTPUT_DIRECTORY}:$ENV{DYLD_LIBRARY_PATH}")
libomp_append(libomp_test_touch_ldflags "-Wl,-rpath,${LIBOMP_HWLOC_LIBRARY_DIR}" LIBOMP_USE_HWLOC)
else()
set(libomp_test_touch_env "LD_LIBRARY_PATH=.:${LIBOMP_OUTPUT_DIRECTORY}:$ENV{LD_LIBRARY_PATH}")
libomp_append(libomp_test_touch_ldflags "-Wl,-rpath=${LIBOMP_HWLOC_LIBRARY_DIR}" LIBOMP_USE_HWLOC)
endif()
endif()
macro(libomp_test_touch_recipe test_touch_dir)
set(libomp_test_touch_dependencies ${LIBOMP_SRC_DIR}/test-touch.c omp)
set(libomp_test_touch_exe ${test_touch_dir}/test-touch${CMAKE_EXECUTABLE_SUFFIX})
set(libomp_test_touch_obj ${test_touch_dir}/test-touch${CMAKE_C_OUTPUT_EXTENSION})
if(WIN32)
if(${RELEASE_BUILD} OR ${RELWITHDEBINFO_BUILD})
if(${test_touch_dir} MATCHES "test-touch-mt")
libomp_append(libomp_test_touch_cflags /MT)
else()
libomp_append(libomp_test_touch_cflags /MD)
endif()
else()
if(${test_touch_dir} MATCHES "test-touch-mt")
libomp_append(libomp_test_touch_cflags /MTd)
else()
libomp_append(libomp_test_touch_cflags /MDd)
endif()
endif()
set(libomp_test_touch_out_flags -Fe${libomp_test_touch_exe} -Fo${libomp_test_touch_obj})
list(APPEND libomp_test_touch_dependencies ompimp)
else()
set(libomp_test_touch_out_flags -o ${libomp_test_touch_exe})
endif()
add_custom_command(
OUTPUT ${test_touch_dir}/.success ${libomp_test_touch_exe} ${libomp_test_touch_obj}
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/${test_touch_dir}
COMMAND ${CMAKE_COMMAND} -E remove -f ${test_touch_dir}/*
COMMAND ${libomp_test_touch_compiler} ${libomp_test_touch_out_flags} ${libomp_test_touch_cflags}
${LIBOMP_SRC_DIR}/test-touch.c ${libomp_test_touch_ldflags} ${libomp_test_touch_libs}
COMMAND ${LIBOMP_SHELL} -c \"${libomp_test_touch_env} ${libomp_test_touch_exe}\"
COMMAND ${CMAKE_COMMAND} -E touch ${test_touch_dir}/.success
DEPENDS ${libomp_test_touch_dependencies}
)
endmacro()
libomp_append(libomp_test_touch_env "KMP_VERSION=1")
add_custom_target(libomp-test-touch DEPENDS ${libomp_test_touch_targets})
if(WIN32)
libomp_test_touch_recipe(test-touch-mt)
libomp_test_touch_recipe(test-touch-md)
else()
libomp_test_touch_recipe(test-touch-rt)
endif()
# test-relo
add_custom_target(libomp-test-relo DEPENDS test-relo/.success)
add_custom_command(
OUTPUT test-relo/.success test-relo/readelf.log
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/test-relo
COMMAND readelf -d ${LIBOMP_OUTPUT_DIRECTORY}/${LIBOMP_LIB_FILE} > test-relo/readelf.log
COMMAND grep -e TEXTREL test-relo/readelf.log \; test $$? -eq 1
COMMAND ${CMAKE_COMMAND} -E touch test-relo/.success
DEPENDS omp
)
# test-execstack
add_custom_target(libomp-test-execstack DEPENDS test-execstack/.success)
add_custom_command(
OUTPUT test-execstack/.success
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/test-execstack
COMMAND ${PERL_EXECUTABLE} ${LIBOMP_TOOLS_DIR}/check-execstack.pl
--arch=${LIBOMP_PERL_SCRIPT_ARCH} ${LIBOMP_OUTPUT_DIRECTORY}/${LIBOMP_LIB_FILE}
COMMAND ${CMAKE_COMMAND} -E touch test-execstack/.success
DEPENDS omp
)
# test-instr
add_custom_target(libomp-test-instr DEPENDS test-instr/.success)
add_custom_command(
OUTPUT test-instr/.success
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/test-instr
COMMAND ${PERL_EXECUTABLE} ${LIBOMP_TOOLS_DIR}/check-instruction-set.pl --os=${LIBOMP_PERL_SCRIPT_OS}
--arch=${LIBOMP_PERL_SCRIPT_ARCH} --show --mic-arch=${LIBOMP_MIC_ARCH} ${LIBOMP_OUTPUT_DIRECTORY}/${LIBOMP_LIB_FILE}
COMMAND ${CMAKE_COMMAND} -E touch test-instr/.success
DEPENDS omp ${LIBOMP_TOOLS_DIR}/check-instruction-set.pl
)
# test-deps
add_custom_target(libomp-test-deps DEPENDS test-deps/.success)
set(libomp_expected_library_deps)
if(CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
set(libomp_expected_library_deps libc.so.7 libthr.so.3 libm.so.5)
libomp_append(libomp_expected_library_deps libhwloc.so.5 LIBOMP_USE_HWLOC)
elseif(CMAKE_SYSTEM_NAME MATCHES "NetBSD")
set(libomp_expected_library_deps libc.so.12 libpthread.so.1 libm.so.0)
libomp_append(libomp_expected_library_deps libhwloc.so.5 LIBOMP_USE_HWLOC)
elseif(CMAKE_SYSTEM_NAME MATCHES "DragonFly")
set(libomp_expected_library_deps libc.so.8 libpthread.so.0 libm.so.4)
libomp_append(libomp_expected_library_deps libhwloc.so.5 LIBOMP_USE_HWLOC)
elseif(APPLE)
set(libomp_expected_library_deps /usr/lib/libSystem.B.dylib)
elseif(WIN32)
set(libomp_expected_library_deps kernel32.dll)
libomp_append(libomp_expected_library_deps psapi.dll LIBOMP_OMPT_SUPPORT)
else()
if(${MIC})
set(libomp_expected_library_deps libc.so.6 libpthread.so.0 libdl.so.2)
if("${LIBOMP_MIC_ARCH}" STREQUAL "knf")
libomp_append(libomp_expected_library_deps ld-linux-l1om.so.2)
libomp_append(libomp_expected_library_deps libgcc_s.so.1)
elseif("${LIBOMP_MIC_ARCH}" STREQUAL "knc")
libomp_append(libomp_expected_library_deps ld-linux-k1om.so.2)
endif()
else()
set(libomp_expected_library_deps libdl.so.2 libgcc_s.so.1)
if(${IA32})
libomp_append(libomp_expected_library_deps libc.so.6)
libomp_append(libomp_expected_library_deps ld-linux.so.2)
elseif(${INTEL64})
libomp_append(libomp_expected_library_deps libc.so.6)
libomp_append(libomp_expected_library_deps ld-linux-x86-64.so.2)
elseif(${ARM})
libomp_append(libomp_expected_library_deps libc.so.6)
libomp_append(libomp_expected_library_deps libffi.so.6)
libomp_append(libomp_expected_library_deps libffi.so.5)
libomp_append(libomp_expected_library_deps ld-linux-armhf.so.3)
elseif(${PPC64})
libomp_append(libomp_expected_library_deps libc.so.6)
libomp_append(libomp_expected_library_deps ld64.so.1)
elseif(${MIPS} OR ${MIPS64})
libomp_append(libomp_expected_library_deps libc.so.6)
libomp_append(libomp_expected_library_deps ld.so.1)
endif()
libomp_append(libomp_expected_library_deps libpthread.so.0 IF_FALSE STUBS_LIBRARY)
libomp_append(libomp_expected_library_deps libhwloc.so.5 LIBOMP_USE_HWLOC)
endif()
libomp_append(libomp_expected_library_deps libstdc++.so.6 LIBOMP_USE_STDCPPLIB)
libomp_append(libomp_expected_library_deps libm.so.6 LIBOMP_STATS)
endif()
# Perl script expects comma separated list
string(REPLACE ";" "," libomp_expected_library_deps "${libomp_expected_library_deps}")
add_custom_command(
OUTPUT test-deps/.success
COMMAND ${CMAKE_COMMAND} -E make_directory ${CMAKE_CURRENT_BINARY_DIR}/test-deps
COMMAND ${PERL_EXECUTABLE} ${LIBOMP_TOOLS_DIR}/check-depends.pl --os=${LIBOMP_PERL_SCRIPT_OS}
--arch=${LIBOMP_PERL_SCRIPT_ARCH} --expected="${libomp_expected_library_deps}" ${LIBOMP_OUTPUT_DIRECTORY}/${LIBOMP_LIB_FILE}
COMMAND ${CMAKE_COMMAND} -E touch test-deps/.success
DEPENDS omp ${LIBOMP_TOOLS_DIR}/check-depends.pl
)
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