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58017eef3f
This one used to be stored into debug.h but the debug tools got larger and require a lot of other includes, which can't use BUG_ON() anymore because of this. It does not make sense and instead this macro should be placed into the lower includes and given its omnipresence, the best solution is to create a new bug.h with the few surrounding macros needed to trigger bugs and place assertions anywhere. Another benefit is that it won't be required to add include <debug.h> anymore to use BUG_ON, it will automatically be covered by api.h. No less than 32 occurrences were dropped. The FSM_PRINTF macro was dropped since not used at all anymore (probably since 1.6 or so).
79 lines
2.7 KiB
C
79 lines
2.7 KiB
C
/*
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* include/haproxy/bug.h
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* Assertions and instant crash macros needed everywhere.
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*
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* Copyright (C) 2000-2020 Willy Tarreau - w@1wt.eu
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#ifndef _HAPROXY_BUG_H
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#define _HAPROXY_BUG_H
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#include <haproxy/compiler.h>
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/* quick debugging hack, should really be removed ASAP */
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#ifdef DEBUG_FULL
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#define DPRINTF(x...) fprintf(x)
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#else
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#define DPRINTF(x...)
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#endif
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/* This abort is more efficient than abort() because it does not mangle the
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* stack and stops at the exact location we need.
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*/
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#define ABORT_NOW() (*(volatile int*)1=0)
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/* BUG_ON: complains if <cond> is true when DEBUG_STRICT or DEBUG_STRICT_NOCRASH
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* are set, does nothing otherwise. With DEBUG_STRICT in addition it immediately
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* crashes using ABORT_NOW() above.
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*/
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#if defined(DEBUG_STRICT) || defined(DEBUG_STRICT_NOCRASH)
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#if defined(DEBUG_STRICT)
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#define CRASH_NOW() ABORT_NOW()
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#else
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#define CRASH_NOW()
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#endif
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#define BUG_ON(cond) _BUG_ON(cond, __FILE__, __LINE__)
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#define _BUG_ON(cond, file, line) __BUG_ON(cond, file, line)
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#define __BUG_ON(cond, file, line) \
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do { \
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if (unlikely(cond)) { \
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const char msg[] = "\nFATAL: bug condition \"" #cond "\" matched at " file ":" #line "\n"; \
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DISGUISE(write(2, msg, __builtin_strlen(msg))); \
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CRASH_NOW(); \
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} \
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} while (0)
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#else
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#undef CRASH_NOW
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#define BUG_ON(cond)
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#endif
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#endif /* _HAPROXY_BUG_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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