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authorRusty Russell <rusty@rustcorp.com.au>2008-12-31 13:35:57 +0100
committerRusty Russell <rusty@rustcorp.com.au>2008-12-31 13:35:57 +0100
commit2ca1a615835d9f4990f42102ab1f2ef434e7e89c (patch)
tree726cf3d5f29a6c66c44e4bd68e7ebed2fd83d059 /kernel/stacktrace.c
parentcpumask: Use nr_cpu_ids in seq_cpumask (diff)
parentMerge branch 'for-linus' of git://oss.sgi.com/xfs/xfs (diff)
downloadlinux-2ca1a615835d9f4990f42102ab1f2ef434e7e89c.tar.xz
linux-2ca1a615835d9f4990f42102ab1f2ef434e7e89c.zip
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Conflicts: arch/x86/kernel/io_apic.c
Diffstat (limited to 'kernel/stacktrace.c')
-rw-r--r--kernel/stacktrace.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 94b527ef1d1e..eb212f8f8bc8 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -6,6 +6,7 @@
* Copyright (C) 2006 Red Hat, Inc., Ingo Molnar <mingo@redhat.com>
*/
#include <linux/sched.h>
+#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/stacktrace.h>
@@ -24,3 +25,13 @@ void print_stack_trace(struct stack_trace *trace, int spaces)
}
EXPORT_SYMBOL_GPL(print_stack_trace);
+/*
+ * Architectures that do not implement save_stack_trace_tsk get this
+ * weak alias and a once-per-bootup warning (whenever this facility
+ * is utilized - for example by procfs):
+ */
+__weak void
+save_stack_trace_tsk(struct task_struct *tsk, struct stack_trace *trace)
+{
+ WARN_ONCE(1, KERN_INFO "save_stack_trace_tsk() not implemented yet.\n");
+}