/*
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* Backtrace debugging
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* Copyright (c) 2009, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef TRACE_H
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#define TRACE_H
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#define WPA_TRACE_LEN 16
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#ifdef WPA_TRACE
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#include <execinfo.h>
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#include "list.h"
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#define WPA_TRACE_INFO void *btrace[WPA_TRACE_LEN]; int btrace_num;
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struct wpa_trace_ref {
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struct dl_list list;
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const void *addr;
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WPA_TRACE_INFO
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};
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#define WPA_TRACE_REF(name) struct wpa_trace_ref wpa_trace_ref_##name
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#define wpa_trace_dump(title, ptr) \
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wpa_trace_dump_func((title), (ptr)->btrace, (ptr)->btrace_num)
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void wpa_trace_dump_func(const char *title, void **btrace, int btrace_num);
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#define wpa_trace_record(ptr) \
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(ptr)->btrace_num = backtrace((ptr)->btrace, WPA_TRACE_LEN)
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void wpa_trace_show(const char *title);
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#define wpa_trace_add_ref(ptr, name, addr) \
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wpa_trace_add_ref_func(&(ptr)->wpa_trace_ref_##name, (addr))
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void wpa_trace_add_ref_func(struct wpa_trace_ref *ref, const void *addr);
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#define wpa_trace_remove_ref(ptr, name, addr) \
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do { \
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if ((addr)) \
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dl_list_del(&(ptr)->wpa_trace_ref_##name.list); \
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} while (0)
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void wpa_trace_check_ref(const void *addr);
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size_t wpa_trace_calling_func(const char *buf[], size_t len);
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#else /* WPA_TRACE */
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#define WPA_TRACE_INFO
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#define WPA_TRACE_REF(n)
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#define wpa_trace_dump(title, ptr) do { } while (0)
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#define wpa_trace_record(ptr) do { } while (0)
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#define wpa_trace_show(title) do { } while (0)
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#define wpa_trace_add_ref(ptr, name, addr) do { } while (0)
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#define wpa_trace_remove_ref(ptr, name, addr) do { } while (0)
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#define wpa_trace_check_ref(addr) do { } while (0)
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#endif /* WPA_TRACE */
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#ifdef WPA_TRACE_BFD
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void wpa_trace_dump_funcname(const char *title, void *pc);
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#else /* WPA_TRACE_BFD */
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#define wpa_trace_dump_funcname(title, pc) do { } while (0)
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#endif /* WPA_TRACE_BFD */
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void wpa_trace_deinit(void);
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#endif /* TRACE_H */
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