[PATCH 10/11] tools/lib/lockdep: New stacktrace API

From: Sasha Levin
Date: Mon Feb 17 2020 - 21:42:05 EST


The kernel switched to using kernel/stacktrace.c, and the API slightly
changed.

Adjust it to make stack traces work again.

Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
tools/include/linux/stacktrace.h | 8 ++++++++
1 file changed, 8 insertions(+)

diff --git a/tools/include/linux/stacktrace.h b/tools/include/linux/stacktrace.h
index ae343ac35bfa7..b290b98d883aa 100644
--- a/tools/include/linux/stacktrace.h
+++ b/tools/include/linux/stacktrace.h
@@ -15,10 +15,18 @@ static inline void print_stack_trace(struct stack_trace *trace, int spaces)
backtrace_symbols_fd((void **)trace->entries, trace->nr_entries, 1);
}

+static inline void stack_trace_print(const long unsigned int *entries, unsigned int nr, int spaces)
+{
+ backtrace_symbols_fd((void **)entries, nr, 1);
+}
+
#define save_stack_trace(trace) \
((trace)->nr_entries = \
backtrace((void **)(trace)->entries, (trace)->max_entries))

+#define stack_trace_save(e, m, x) \
+ backtrace((void **)(e), (m))
+
static inline int dump_stack(void)
{
void *array[64];
--
2.20.1