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debug: add VERIFY_{IMPLY,EQUIV} variants

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This allows for much cleaner VERIFY-level assertions.

Reviewed-by: Ryan Moeller <ryan@iXsystems.com>
Reviewed-by: Alexander Motin <mav@FreeBSD.org>
Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Closes #14070
This commit is contained in:
Aleksa Sarai 2022-05-18 20:29:33 +10:00 committed by Brian Behlendorf
parent 86db35c447
commit 7b3ba29654
1 changed files with 12 additions and 8 deletions
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20
include/os/linux/spl/sys/debug.h
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@ -140,6 +140,16 @@ spl_assert(const char *buf, const char *file, const char *func, int line)
(long long) (_verify3_right)); \
} while (0)
#define VERIFY_IMPLY(A, B) \
((void)(likely((!(A)) || (B)) || \
spl_assert("(" #A ") implies (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
#define VERIFY_EQUIV(A, B) \
((void)(likely(!!(A) == !!(B)) || \
spl_assert("(" #A ") is equivalent to (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
/*
* Debugging disabled (--disable-debug)
*/
@ -171,14 +181,8 @@ spl_assert(const char *buf, const char *file, const char *func, int line)
#define ASSERT3P VERIFY3P
#define ASSERT0 VERIFY0
#define ASSERT VERIFY
#define IMPLY(A, B) \
((void)(likely((!(A)) || (B)) || \
spl_assert("(" #A ") implies (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
#define EQUIV(A, B) \
((void)(likely(!!(A) == !!(B)) || \
spl_assert("(" #A ") is equivalent to (" #B ")", \
__FILE__, __FUNCTION__, __LINE__)))
#define IMPLY VERIFY_IMPLY
#define EQUIV VERIFY_EQUIV
#endif /* NDEBUG */