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btrfs-progs: kerncompat: add separate trace print for BUG_ON 

We want to pass unmodified condition down to the handlers so we can't
use assert_trace for that purpose.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2017-01-24 13:15:41 +01:00
parent 5826f1e9ff
commit be5e0b230c
1 changed files with 15 additions and 2 deletions
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17
kerncompat.h
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@ -106,6 +106,20 @@ static inline void warning_trace(const char *assertion, const char *filename,
#endif
}
static inline void bugon_trace(const char *assertion, const char *filename,
const char *func, unsigned line, long val)
{
if (!val)
return;
fprintf(stderr,
"%s:%d: %s: BUG_ON `%s` triggered, value %ld\n",
filename, line, func, assertion, val);
#ifndef BTRFS_DISABLE_BACKTRACE
print_trace();
#endif
abort();
exit(1);
}
#ifdef __CHECKER__
#define __force __attribute__((force))
@ -292,12 +306,11 @@ static inline void assert_trace(const char *assertion, const char *filename,
exit(1);
}
#define ASSERT(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)!(c))
#define BUG_ON(c) assert_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#else
#define ASSERT(c) assert(c)
#define BUG_ON(c) ASSERT(!(c))
#endif
#define BUG_ON(c) bugon_trace(#c, __FILE__, __func__, __LINE__, (long)(c))
#define BUG() BUG_ON(1)
#define WARN_ON(c) warning_trace(#c, __FILE__, __func__, __LINE__, (long)(c))