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#
#//===----------------------------------------------------------------------===//
#//
#// 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.
#//
#//===----------------------------------------------------------------------===//
#
###############################################################################
# This file contains additional build rules that correspond to build.pl's rules.
# Building libomp.dbg is linux only, Windows will build libompmd.dll.pdb
# This file is only active if ${LIBOMP_USE_BUILDPL_RULES} is true.
#
# ######### BUILD DEPENDENCIES ##########
#
# exports/.../libomp.so exports/.../libomp.dbg
# [copy] | | [copy]
# | |
# ./libomp.so ./libomp.dbg
# [copy] / OR \____________ [copy] | [copy]
# / \ |
# ./unstripped/libomp.so ./stripped/libomp.so ./unstripped/libomp.dbg
# / \ /
# / [linking] \[strip] /[strip and store]
# / \ /
# ${objs} (maybe compiled with -g) ./unstripped/libomp.so (library with debug info in it)
# |
# | [linking]
# |
# ${objs} (always compiled with -g)
#
# For icc Linux builds, we always include debugging information via -g and create libomp.dbg
# so that Intel(R) Parallel Amplifier can use the .dbg file.
# For icc Windows builds, we always include debugging information via -Zi and create libomp.pdb
# in a fashion similar to libomp.dbg
# For icc Mac builds, we don't bother with the debug info.
# We build library in unstripped directory
file(MAKE_DIRECTORY ${build_dir}/unstripped)
# Only build the .dbg file for Release builds
# Debug and RelWithDebInfo builds should not create a .dbg file.
# The debug info should remain in the library file.
if(${LINUX} AND ${RELEASE_BUILD})
set(dbg_file ${lib_item}.dbg)
endif()
################################
# --- Create $(lib_file).dbg ---
if(NOT "${dbg_file}" STREQUAL "")
# if a ${dbg_file} file is going to be created, then
file(MAKE_DIRECTORY ${build_dir}/stripped)
# ./${lib_file} : stripped/${lib_file}
# copy stripped/${lib_file} ./${lib_file}
simple_copy_recipe("${lib_file}" "${build_dir}/stripped" "${build_dir}")
# stripped/${lib_file} : unstripped/${lib_file} ./${dbg_file}
# objcopy --strip-debug unstripped/${lib_file} stripped/${lib_file}.tmp
# objcopy --add-gnu-debuglink=${dbg_file} stripped/${lib_file}.tmp stripped/${lib_file}
add_custom_command(
OUTPUT ${build_dir}/stripped/${lib_file}
COMMAND ${CMAKE_OBJCOPY} --strip-debug ${build_dir}/unstripped/${lib_file} ${build_dir}/stripped/${lib_file}.tmp
COMMAND ${CMAKE_OBJCOPY} --add-gnu-debuglink=${dbg_file} ${build_dir}/stripped/${lib_file}.tmp ${build_dir}/stripped/${lib_file}
DEPENDS "${build_dir}/${dbg_file}"
)
# ./${dbg_file} : unstripped/${dbg_file}
# copy unstripped/${dbg_file} ./${dbg_file}
simple_copy_recipe("${dbg_file}" "${build_dir}/unstripped" "${build_dir}")
# unstripped/${dbg_file} : unstripped/${lib_file}
# objcopy --only-keep-debug unstripped/${lib_file} unstripped/${dbg_file}
add_custom_command(
OUTPUT ${build_dir}/unstripped/${dbg_file}
COMMAND ${CMAKE_OBJCOPY} --only-keep-debug ${build_dir}/unstripped/${lib_file} ${build_dir}/unstripped/${dbg_file}
DEPENDS omp
)
else()
# ./${lib_file} : unstripped/${lib_file}
# copy unstripped/${lib_file} ./${lib_file}
simple_copy_recipe("${lib_file}" "${build_dir}/unstripped" "${build_dir}")
endif()
# Windows specific command to move around debug info files post-build
if(NOT "${pdb_file}" STREQUAL "" AND ${RELEASE_BUILD})
add_custom_command(TARGET omp POST_BUILD
COMMAND ${CMAKE_COMMAND} -E rename ${pdb_file} ${pdb_file}.nonstripped
COMMAND ${CMAKE_COMMAND} -E rename ${pdb_file}.stripped ${pdb_file}
)
endif()
# Have icc build libomp in unstripped directory
set_target_properties(omp PROPERTIES
LIBRARY_OUTPUT_DIRECTORY "${build_dir}/unstripped"
RUNTIME_OUTPUT_DIRECTORY "${build_dir}/unstripped"
ARCHIVE_OUTPUT_DIRECTORY "${build_dir}"
)
# Always use RelWithDebInfo flags for Release builds when using the build.pl's build rules (use -g -O2 instead of just -O3)
# The debug info is then stripped out at the end of the build and put into libomp.dbg for Linux
if(${RELEASE_BUILD} AND NOT ${MAC})
set(CMAKE_C_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELWITHDEBINFO} )
set(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELWITHDEBINFO})
set(CMAKE_ASM_FLAGS_RELEASE ${CMAKE_ASM_FLAGS_RELWITHDEBINFO})
endif()
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