kernel/tools/lib/lockdep/uinclude/linux/stacktrace.h

   1 #ifndef _LIBLOCKDEP_LINUX_STACKTRACE_H_
   2 #define _LIBLOCKDEP_LINUX_STACKTRACE_H_
   3
   4 #include <execinfo.h>
   5
   6 struct stack_trace {
   7         unsigned int nr_entries, max_entries;
   8         unsigned long *entries;
   9         int skip;
  10 };
  11
  12 static inline void print_stack_trace(struct stack_trace *trace, int spaces)
  13 {
  14         backtrace_symbols_fd((void **)trace->entries, trace->nr_entries, 1);
  15 }
  16
  17 #define save_stack_trace(trace) \
  18         ((trace)->nr_entries =  \
  19                 backtrace((void **)(trace)->entries, (trace)->max_entries))
  20
  21 static inline int dump_stack(void)
  22 {
  23         void *array[64];
  24         size_t size;
  25
  26         size = backtrace(array, 64);
  27         backtrace_symbols_fd(array, size, 1);
  28
  29         return 0;
  30 }
  31
  32 #endif