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try to avoid loop in getting x86_64 stack trace

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svn: r12635
This commit is contained in:
Matthew Flatt 2008-11-29 14:18:00 +00:00
parent 2f73042c99
commit f922996173
1 changed files with 3 additions and 0 deletions
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3
src/mzscheme/src/unwind/libunwind.c
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@ -1470,6 +1470,9 @@ rs_lookup (struct dwarf_rs_cache *cache, struct dwarf_cursor *c)
} }
if (rs->coll_chain >= DWARF_UNW_HASH_SIZE) if (rs->coll_chain >= DWARF_UNW_HASH_SIZE)
return 0; return 0;
if (!rs->coll_chain)
/* Something went wrong */
return 0;
rs = cache->buckets + rs->coll_chain; rs = cache->buckets + rs->coll_chain;
} }
} }