sanity.bbclass: Add check for problematic /proc/sys/vm/mmap_min_addr values

diff --git a/classes/sanity.bbclass b/classes/sanity.bbclass
index 44c74a0..7aabe04 100644 (file)
--- a/classes/sanity.bbclass
+++ b/classes/sanity.bbclass
@@ -98,6 +98,12 @@ 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