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From: Michael Jeanson <mjeanson@efficios.com>
To: lttng-dev@lists.lttng.org
Subject: [PATCH lttng-ust] Disable NUMA by default on 32bit arm
Date: Mon,  6 Nov 2017 14:09:30 -0500	[thread overview]
Message-ID: <1509995370-27634-1-git-send-email-mjeanson__20442.4509582624$1509995397$gmane$org@efficios.com> (raw)

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>
---
 configure.ac | 50 ++++++++++++++++++++++++++++----------------------
 1 file changed, 28 insertions(+), 22 deletions(-)

diff --git a/configure.ac b/configure.ac
index ca1de87..10087f3 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])
 ])
-- 
2.7.4

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             reply	other threads:[~2017-11-06 19:09 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-06 19:09 Michael Jeanson [this message]
     [not found] <1509995370-27634-1-git-send-email-mjeanson@efficios.com>
2017-11-06 19:29 ` [PATCH lttng-ust] Disable NUMA by default on 32bit arm Mathieu Desnoyers

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