From b5f0874cd96ee2a62aabc645b9626c2749cb6a01 Mon Sep 17 00:00:00 2001 From: manuel Date: Mon, 26 Mar 2012 12:54:45 +0200 Subject: initial pintos checkin --- pintos-progos/lib/debug.h | 39 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 pintos-progos/lib/debug.h (limited to 'pintos-progos/lib/debug.h') diff --git a/pintos-progos/lib/debug.h b/pintos-progos/lib/debug.h new file mode 100644 index 0000000..888ab7b --- /dev/null +++ b/pintos-progos/lib/debug.h @@ -0,0 +1,39 @@ +#ifndef __LIB_DEBUG_H +#define __LIB_DEBUG_H + +/* GCC lets us add "attributes" to functions, function + parameters, etc. to indicate their properties. + See the GCC manual for details. */ +#define UNUSED __attribute__ ((unused)) +#define NO_RETURN __attribute__ ((noreturn)) +#define NO_INLINE __attribute__ ((noinline)) +#define PRINTF_FORMAT(FMT, FIRST) __attribute__ ((format (printf, FMT, FIRST))) + +/* Halts the OS, printing the source file name, line number, and + function name, plus a user-specific message. */ +#define PANIC(...) debug_panic (__FILE__, __LINE__, __func__, __VA_ARGS__) + +void debug_panic (const char *file, int line, const char *function, + const char *message, ...) PRINTF_FORMAT (4, 5) NO_RETURN; +void debug_backtrace (void); +void debug_backtrace_all (void); + +#endif + + + +/* This is outside the header guard so that debug.h may be + included multiple times with different settings of NDEBUG. */ +#undef ASSERT +#undef NOT_REACHED + +#ifndef NDEBUG +#define ASSERT(CONDITION) \ + if (CONDITION) { } else { \ + PANIC ("assertion `%s' failed.", #CONDITION); \ + } +#define NOT_REACHED() PANIC ("executed an unreachable statement"); +#else +#define ASSERT(CONDITION) ((void) 0) +#define NOT_REACHED() for (;;) +#endif /* lib/debug.h */ -- cgit v1.2.3