Dejagnu tweak: Check the compiler output in libstdc++-dg-test using ${tool}_check_unsupported_p and mark the output unsupported accordingly to avoid "relocation truncated" failures cluttering the test results on aarch64-none-elf with -mcmodel=tiny. (gcc torture tests already use this predicate for this reason.)
This is a revision of https://gcc.gnu.org/ml/libstdc++/2015-01/msg00198.html which had problems because the unsupported result was propagated to and handled by dg-runtest differently than expected. Is it OK? libstdc++-v3/Changelog: 2015-10-13 Szabolcs Nagy <szabolcs.n...@arm.com> * testsuite/lib/libstdc++.exp (libstdc++-dg-test): Check for unsupported compiler output.
diff --git a/libstdc++-v3/testsuite/lib/libstdc++.exp b/libstdc++-v3/testsuite/lib/libstdc++.exp index 88738b7..769ac94 100644 --- a/libstdc++-v3/testsuite/lib/libstdc++.exp +++ b/libstdc++-v3/testsuite/lib/libstdc++.exp @@ -409,6 +409,11 @@ proc libstdc++-dg-test { prog do_what extra_tool_flags } { # and-target file), but the defaults are lacking in goodness. set comp_output [$select_compile "$prog" "$output_file" "$compile_type" $options]; + set unsupported_message [libstdc++_check_unsupported_p $comp_output] + if { $unsupported_message != "" } { + set comp_output "::unsupported::$unsupported_message" + } + return [list $comp_output $output_file] }