From: Michael Jeanson <mjeanson@efficios.com>
Date: Mon, 6 Nov 2017 19:09:30 +0000 (-0500)
Subject: Disable NUMA by default on 32bit arm
X-Git-Tag: v2.11.0-rc1~38
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=c95c332aeedc4c5af4aa4988f3379b500a852fab;p=lttng-ust.git

Disable NUMA by default on 32bit arm

There is currently no NUMA support on 32bit arm, disable the dependency
on libnuma by default on this architecture. It can still be force with
--enable-numa.

Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/configure.ac b/configure.ac
index ca1de874..10087f3f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -171,6 +171,30 @@ AC_CHECK_HEADERS([ \
 	wchar.h \
 ])
 
+# Set architecture specific options
+AS_CASE([$host_cpu],
+	[i[[3456]]86], [],
+	[x86_64], [],
+	[amd64], [],
+	[powerpc], [],
+	[ppc64], [],
+	[ppc64le], [],
+	[powerpc64], [],
+	[powerpc64le], [],
+	[s390], [NO_UNALIGNED_ACCESS=1],
+	[s390x], [NO_UNALIGNED_ACCESS=1],
+	[arm*], [
+		NO_UNALIGNED_ACCESS=1
+		NO_NUMA=1
+		],
+	[aarch64*], [NO_UNALIGNED_ACCESS=1],
+	[mips*], [NO_UNALIGNED_ACCESS=1],
+	[tile*], [NO_UNALIGNED_ACCESS=1],
+	[
+		UNSUPPORTED_ARCH=1
+		NO_UNALIGNED_ACCESS=1
+	])
+
 # Configuration options, which will be installed in the config.h
 AH_TEMPLATE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [Use efficient unaligned access.])
 AH_TEMPLATE([LTTNG_UST_HAVE_SDT_INTEGRATION], [SystemTap integration via sdt.h])
@@ -248,6 +272,10 @@ AC_CHECK_LIB([urcu-bp], [synchronize_rcu_bp], [], [AC_MSG_ERROR([Cannot find lib
 AC_CHECK_LIB([urcu-bp], [call_rcu_bp], [], [AC_MSG_ERROR([liburcu 0.6 or newer is needed, please update your version or use [LDFLAGS]=-Ldir to specify the right location.])])
 
 # numa.h integration
+AS_IF([test "x$NO_NUMA" = "x1"],[
+      AS_IF([test "x$enable_numa" = "x" ], [enable_numa=no])
+])
+
 AC_ARG_ENABLE([numa], [
 AS_HELP_STRING([--disable-numa], [disable NUMA support])
 ], [
@@ -275,28 +303,6 @@ AS_IF([test "x$have_perf_event" = "xyes"], [
 	AC_DEFINE([LTTNG_UST_HAVE_PERF_EVENT], [1])
 ])
 
-AC_MSG_CHECKING([host system alignment requirements])
-AS_CASE([$host_cpu],
-	[i[[3456]]86], [],
-	[x86_64], [],
-	[amd64], [],
-	[powerpc], [],
-	[ppc64], [],
-	[ppc64le], [],
-	[powerpc64], [],
-	[powerpc64le], [],
-	[s390], [NO_UNALIGNED_ACCESS=1],
-	[s390x], [NO_UNALIGNED_ACCESS=1],
-	[arm*], [NO_UNALIGNED_ACCESS=1],
-	[aarch64*], [NO_UNALIGNED_ACCESS=1],
-	[mips*], [NO_UNALIGNED_ACCESS=1],
-	[tile*], [NO_UNALIGNED_ACCESS=1],
-	[
-		UNSUPPORTED_ARCH=1
-		NO_UNALIGNED_ACCESS=1
-	])
-AC_MSG_RESULT([$host_cpu])
-
 AS_IF([test "x$NO_UNALIGNED_ACCESS" = "x"], [
 	AC_DEFINE([LTTNG_UST_HAVE_EFFICIENT_UNALIGNED_ACCESS], [1])
 ])