From: Michael Jeanson Date: Tue, 30 Jun 2015 15:55:40 +0000 (-0400) Subject: Default to no unaligned access on unsupported archs X-Git-Tag: v2.7.0-rc1~11 X-Git-Url: http://git.lttng.org/?p=lttng-ust.git;a=commitdiff_plain;h=0ea8bd08bf5d56e2a173dac1f2fe58afd26a5109 Default to no unaligned access on unsupported archs [ Edit by Mathieu: change configure output style to match current style. ] Signed-off-by: Michael Jeanson Signed-off-by: Mathieu Desnoyers --- diff --git a/configure.ac b/configure.ac index 03483a77..16509b57 100644 --- a/configure.ac +++ b/configure.ac @@ -241,7 +241,10 @@ changequote([,])dnl aarch64) NO_UNALIGNED_ACCESS=1 ;; mips*) NO_UNALIGNED_ACCESS=1 ;; tile*) NO_UNALIGNED_ACCESS=1 ;; - *) AC_MSG_ERROR([unable to detect alignment requirements (unsupported architecture ($host_cpu)?)]) ;; + *) + UNSUPPORTED_ARCH=1 + NO_UNALIGNED_ACCESS=1 + ;; esac AC_MSG_RESULT([$host_cpu]) @@ -422,6 +425,11 @@ AS_IF([test "x$python_agent" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled AS_ECHO_N("sdt.h integration: ") AS_IF([test "x$with_sdt" = "xyes"], [AS_ECHO("Enabled")], [AS_ECHO("Disabled")]) +AS_ECHO("Architecture: $host_cpu") +AS_ECHO_N("Efficient unaligned memory access: ") +AS_IF([test "x$NO_UNALIGNED_ACCESS" != "x1"], [AS_ECHO("yes")], [AS_IF([test "x$UNSUPPORTED_ARCH" != "x1"], [AS_ECHO("no")], [AS_ECHO("unknown")])]) +AS_IF([test "x$UNSUPPORTED_ARCH" = "x1"], [AC_MSG_WARN([Your architecture ($host_cpu) is unsupported, using safe default of no unaligned access])]) AS_ECHO() + AS_ECHO("Type 'make' to compile.")