Module Name: src
Committed By: yamt
Date: Wed Oct 19 10:55:50 UTC 2011
Modified Files:
src/external/cddl/osnet/dev/fbt: fbt.c
Log Message:
fbt_provide_module_cb: exclude some functions known unsafe to probe
To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 src/external/cddl/osnet/dev/fbt/fbt.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/external/cddl/osnet/dev/fbt/fbt.c
diff -u src/external/cddl/osnet/dev/fbt/fbt.c:1.9 src/external/cddl/osnet/dev/fbt/fbt.c:1.10
--- src/external/cddl/osnet/dev/fbt/fbt.c:1.9 Wed Aug 31 21:57:16 2011
+++ src/external/cddl/osnet/dev/fbt/fbt.c Wed Oct 19 10:55:50 2011
@@ -1,4 +1,4 @@
-/* $NetBSD: fbt.c,v 1.9 2011/08/31 21:57:16 christos Exp $ */
+/* $NetBSD: fbt.c,v 1.10 2011/10/19 10:55:50 yamt Exp $ */
/*
* CDDL HEADER START
@@ -268,6 +268,21 @@ fbt_provide_module_cb(const char *name,
if (name[0] == '_' && name[1] == '_')
return (0);
+ /*
+ * Exclude some more symbols which can be called from probe context.
+ */
+ if (strcmp(name, "x86_curcpu") == 0 /* CPU */
+ || strcmp(name, "x86_curlwp") == 0 /* curproc, curlwp, curthread */
+ || strcmp(name, "cpu_index") == 0 /* cpu_number, curcpu_id */
+ || strncmp(name, "db_", 3) == 0 /* debugger */
+ || strncmp(name, "ddb_", 4) == 0 /* debugger */
+ || strncmp(name, "kdb_", 4) == 0 /* debugger */
+ || strncmp(name, "lockdebug_", 10) == 0 /* lockdebug XXX for now */
+ || strncmp(name, "kauth_", 5) == 0 /* CRED XXX for now */
+ ) {
+ return 0;
+ }
+
instr = (u_int8_t *) value;
limit = (u_int8_t *) value + symsize;
