[Crash-utility] [PATCH 2/3] kernel: Introduce is_kernel_tainted()
Provide a quick way to test if the given Linux kernel is "tainted".
Support for Linux-2.6.12 and above, to date.
Signed-off-by: Aaron Tomlin <atomlin(a)redhat.com>
---
kernel.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
diff --git a/kernel.c b/kernel.c
index 1310f98..553849c 100644
--- a/kernel.c
+++ b/kernel.c
@@ -5482,6 +5482,24 @@ cmd_sys(void)
} while (args[optind]);
}
+static int
+is_kernel_tainted(void)
+{
+ ulong tainted_mask;
+ int tainted;
+
+ if (kernel_symbol_exists("tainted")) {
+ get_symbol_data("tainted", sizeof(int), &tainted);
+ if (tainted)
+ return TRUE;
+ } else if (kernel_symbol_exists("tainted_mask")) {
+ get_symbol_data("tainted_mask", sizeof(ulong), &tainted_mask);
+ if (tainted_mask)
+ return TRUE;
+ }
+ return FALSE;
+}
+
static int
is_livepatch(void)
{
--
2.31.1