sanity.bbclass: Add check of the /proc/sys/vm/mmap_min_addr value and warn if its potentially problematic

git-svn-id: https://svn.o-hand.com/repos/poky/trunk@4448 311d38ba-8fff-0310-9ca6-ca027cbcb966

1 files changed, 6 insertions, 0 deletions

diff --git a/meta/classes/sanity.bbclass b/meta/classes/sanity.bbclass
index 45fdc19b95..b8fc090184 100644
--- a/meta/classes/sanity.bbclass
+++ b/meta/classes/sanity.bbclass
@@ -96,6 +96,12 @@ def check_sanity(e):
                 if not check_app_exists("qemu-arm", e.data):
                         messages = messages + "qemu-native was in ASSUME_PROVIDED but the QEMU binaries (qemu-arm) can't be found in PATH"
 
+        if os.path.exists("/proc/sys/vm/mmap_min_addr"):
+                f = file("/proc/sys/vm/mmap_min_addr", "r")
+                if (f.read().strip() != "0"):
+                        messages = messages + "/proc/sys/vm/mmap_min_addr is not 0. This will cause problems with qemu so please fix the value (as root).\n"
+                f.close()
+
         for util in required_utilities.split():
                 if not check_app_exists( util, e.data ):
                         missing = missing + "%s," % util