qt5base-lts/mkspecs/features/unix/separate_debug_info.prf

have_target:!static:if(darwin|!isEmpty(QMAKE_OBJCOPY)) {
    darwin {
        debug_info_copy_bin = $$QMAKE_DSYMUTIL
        debug_info_strip_bin = $$QMAKE_STRIP
        debug_info_suffix = dSYM
        debug_info_out = --flat -o
        debug_info_strip = -S
    } else {
        debug_info_copy_bin = $$QMAKE_OBJCOPY
        debug_info_strip_bin = $$QMAKE_OBJCOPY
        qnx {
            debug_info_suffix = sym
            debug_info_keep = --keep-file-symbols
            debug_info_strip = --strip-debug -R.ident
        } else {
            debug_info_suffix = debug
            debug_info_keep = --only-keep-debug
            debug_info_strip = --strip-debug
        }
    }
    load(resolve_target)
    debug_info_target = $$QMAKE_RESOLVED_TARGET

    darwin {
        !isEmpty(QMAKE_RESOLVED_BUNDLE) {
            debug_info_target = $$QMAKE_RESOLVED_BUNDLE
            CONFIG += any_bundle
        }

        debug_info_target_rel = $$section(debug_info_target, /, -1, -1)

        debug_info_target_dir_suffix = .$$debug_info_suffix/Contents/Resources/DWARF

        debug_info_target_dir = $${debug_info_target}$${debug_info_target_dir_suffix}
        debug_info_target_dir_rel = $${debug_info_target_rel}$${debug_info_target_dir_suffix}
        !isEmpty(QMAKE_RESOLVED_BUNDLE): \
            QMAKE_TARGET_DEBUG_INFO = $$debug_info_target_dir/$$TARGET
        else: \
            QMAKE_TARGET_DEBUG_INFO = $$debug_info_target_dir/$$section(QMAKE_RESOLVED_TARGET, /, -1, -1)

        if(any_bundle:!build_pass)|if(!any_bundle:if(build_pass|isEmpty(BUILDS))) {
            equals(TEMPLATE, lib):lib_bundle:!isEmpty(QMAKE_FRAMEWORK_BUNDLE_NAME): \
                BUNDLEIDENTIFIER = $$replace(QMAKE_FRAMEWORK_BUNDLE_NAME, \\.framework$, )
            else: equals(TEMPLATE, app):app_bundle:!isEmpty(QMAKE_APPLICATION_BUNDLE_NAME): \
                BUNDLEIDENTIFIER = $$replace(QMAKE_APPLICATION_BUNDLE_NAME, \\.app$, )
            else: \
                BUNDLEIDENTIFIER = $${TARGET}

            !isEmpty(QMAKE_TARGET_BUNDLE_PREFIX): \
                BUNDLEIDENTIFIER = $$replace(QMAKE_TARGET_BUNDLE_PREFIX, \\.$, ).$${BUNDLEIDENTIFIER}
            else: \
                BUNDLEIDENTIFIER = com.yourcompany.$${BUNDLEIDENTIFIER}

            BUNDLEIDENTIFIER ~= s,_,-,

            debug_info_plist.input = $$QMAKESPEC/Info.plist.dSYM.in
            debug_info_plist.output = $${debug_info_target}.$$debug_info_suffix/Contents/Info.plist
            QMAKE_SUBSTITUTES += debug_info_plist
        }

        contains(INSTALLS, target):isEmpty(target.files):isEmpty(target.commands):isEmpty(target.extra) {
            !build_pass|release {
                debug_info_plist_target.CONFIG += no_check_exist
                debug_info_plist_target.files = $${debug_info_target}.$$debug_info_suffix/Contents/Info.plist
                debug_info_plist_target.path += $${target.path}/$${debug_info_target_rel}.$$debug_info_suffix/Contents
                INSTALLS += debug_info_plist_target
            }

            debug_info_target.CONFIG += no_check_exist
            debug_info_target.files = $$QMAKE_TARGET_DEBUG_INFO
            debug_info_target.path += $${target.path}/$${debug_info_target_dir_rel}
            INSTALLS += debug_info_target
        }
    } else {
        QMAKE_TARGET_DEBUG_INFO = $${QMAKE_RESOLVED_TARGET}.$$debug_info_suffix
        target.targets += $$QMAKE_TARGET_DEBUG_INFO
    }

    shell_target = $$shell_quote($$relative_path($$QMAKE_RESOLVED_TARGET, $$OUT_PWD))
    shell_target_debug_info = $$shell_quote($$relative_path($$QMAKE_TARGET_DEBUG_INFO, $$OUT_PWD))
    copy_debug_info = $$debug_info_copy_bin $$debug_info_keep $$shell_target $$debug_info_out $$shell_target_debug_info
    strip_debug_info = $$debug_info_strip_bin $$debug_info_strip $$shell_target

    !isEmpty(QMAKE_POST_LINK):QMAKE_POST_LINK = $$escape_expand(\\n\\t)$$QMAKE_POST_LINK
    darwin {
        mkdir_debug_info = $$QMAKE_MKDIR $$shell_quote($$debug_info_target_dir)
        QMAKE_POST_LINK = $$mkdir_debug_info && $$copy_debug_info && $$strip_debug_info $$QMAKE_POST_LINK
    } else {
        link_debug_info = $$QMAKE_OBJCOPY --add-gnu-debuglink=$$shell_target_debug_info $$shell_target
        chmod_debug_info = chmod -x $$shell_target_debug_info
        QMAKE_POST_LINK = $$copy_debug_info && $$strip_debug_info && $$link_debug_info && $$chmod_debug_info $$QMAKE_POST_LINK
    }
    silent:QMAKE_POST_LINK = @echo creating $@.$$debug_info_suffix && $$QMAKE_POST_LINK

    QMAKE_DISTCLEAN += $$QMAKE_TARGET_DEBUG_INFO
}