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it's good for gc debuging

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This commit is contained in:
Xinchen Hui 2014-09-16 14:15:01 +08:00
parent d17487f827
commit 6d2ca4b508
1 changed files with 25 additions and 0 deletions
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25
.gdbinit
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@ -638,3 +638,28 @@ document zmemcheck
usage: zmemcheck [ptr].
if ptr is 0, all blocks will be listed.
end
define lookup_root
set $found = 0
if gc_globals->roots
set $current = gc_globals->roots->next
printf "looking ref %p in roots\n", $arg0
while $current != &gc_globals->roots
if $current->ref == $arg0
set $found = $current
break
end
set $current = $current->next
end
if $found != 0
printf "found root %p\n", $found
else
printf "not found\n"
end
end
end
document lookup_root
lookup a refcounted in root
usage: lookup_root [ptr].
end