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From 247c87f4a981fd26bfaf219930193b1a35865736 Mon Sep 17 00:00:00 2001
From: Alexey Shvetsov <alexxy@gentoo.org>
Date: Mon, 18 Mar 2013 16:22:27 +0400
Subject: [PATCH 01/12] LU-2982 build: make AC check for linux arch sandbox
friendly
this commit makes AC check for linux kernel arch sandbox friendly
Signed-off-by: Alexey Shvetsov <alexxy@gentoo.org>
Change-Id: I173cd892bca5587519806cf6d300a5053dfb935f
Signed-off-by: Alexey Shvetsov <alexxy@gentoo.org>
---
config/lustre-build-linux.m4 | 66 ++++++++++++++++++++++++++++++++++++++------
1 file changed, 58 insertions(+), 8 deletions(-)
diff --git a/config/lustre-build-linux.m4 b/config/lustre-build-linux.m4
index 894101c..8062ace 100644
--- a/config/lustre-build-linux.m4
+++ b/config/lustre-build-linux.m4
@@ -394,14 +394,64 @@ rm -f build/conftest.o build/conftest.mod.c build/conftest.mod.o build/conftest.
# Determine the kernel's idea of the current architecture
#
AC_DEFUN([LB_LINUX_ARCH],
- [AC_MSG_CHECKING([Linux kernel architecture])
- AS_IF([rm -f $PWD/build/arch
- make -s --no-print-directory echoarch -f $PWD/build/Makefile \
- LUSTRE_LINUX_CONFIG=$LINUX_CONFIG -C $LINUX $CROSS_VARS \
- ARCHFILE=$PWD/build/arch && LINUX_ARCH=`cat $PWD/build/arch`],
- [AC_MSG_RESULT([$LINUX_ARCH])],
- [AC_MSG_ERROR([Could not determine the kernel architecture.])])
- rm -f build/arch])
+[LINUXARCH=
+rm -f build/conftest.i
+AC_MSG_CHECKING([Linux kernel architecture])
+if test -s $LINUX_OBJ/include/$AUTOCONF_HDIR/compile.h ; then
+ LINUXARCHHEADER=$AUTOCONF_HDIR/compile.h
+else
+ LINUXARCHHEADER=linux/autoconf.h
+fi
+LB_LINUX_TRY_MAKE([
+#include <$LINUXARCHHEADER>
+
+#ifndef UTS_MACHINE
+
+ #ifdef CONFIG_X86
+ #ifdef CONFIG_X86_32
+ #define UTS_MACHINE i386
+ #endif
+ #ifdef CONFIG_X86_64
+ #define UTS_MACHINE x86_64
+ #endif
+ #endif
+
+ #ifdef CONFIG_IA64
+ #define UTS_MACHINE ia64
+ #endif
+
+ #ifdef CONFIG_PPC
+ #ifdef CONFIG_PPC32
+ #define UTS_MACHINE ppc
+ #endif
+ #ifdef CONFIG_PPC64
+ #define UTS_MACHINE ppc64
+ #endif
+ #endif
+
+#endif
+],[
+ char *LINUXARCH;
+ LINUXARCH=UTS_MACHINE;
+],[
+ $makerule LUSTRE_KERNEL_TEST=conftest.i
+],[
+ test -s build/conftest.i
+],[
+ # LINUXARCH="UTS_MACHINE"
+ eval $(grep "LINUXARCH=" build/conftest.i)
+],[
+ AC_MSG_RESULT([unknown])
+ AC_MSG_ERROR([Could not preprocess test program. Consult config.log for details.])
+])
+ rm -f build/conftest.i
+ if test x$LINUXARCH = x ; then
+ AC_MSG_RESULT([unknown])
+ AC_MSG_ERROR([Could not determine Linux architecture from linux/version.h.])
+ fi
+AC_MSG_RESULT([$LINUXARCH])
+AC_SUBST(LINUXARCH)
+])
#
# LB_LINUX_TRY_COMPILE
--
1.8.5.3
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