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Bug 914253 patch 5 - Implement caching of addr2line results, like bug 812070 did for fix-linux-stack.pl. No review.

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This commit is contained in:
L. David Baron 2014-08-06 15:52:49 -07:00
parent 78433924c6
commit d67e757dc8
1 changed files with 9 additions and 3 deletions
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12
tools/rb/fix_linux_stack.py
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@ -212,14 +212,20 @@ addr2lines = {}
def addressToSymbol(file, address):
converter = None
address_adjustment = None
cache = None
if not file in addr2lines:
debug_file = separate_debug_file_for(file) or file
converter = unbufferedLineConverter('/usr/bin/addr2line', ['-C', '-f', '-e', debug_file])
address_adjustment = address_adjustment_for(file)
addr2lines[file] = (converter, address_adjustment)
cache = {}
addr2lines[file] = (converter, address_adjustment, cache)
else:
(converter, address_adjustment) = addr2lines[file]
return converter.convert(hex(int(address, 16) + address_adjustment))
(converter, address_adjustment, cache) = addr2lines[file]
if address in cache:
return cache[address]
result = converter.convert(hex(int(address, 16) + address_adjustment))
cache[address] = result
return result
line_re = re.compile("^(.*) ?\[([^ ]*) \+(0x[0-9a-f]{1,8})\](.*)$")
balance_tree_re = re.compile("^([ \|0-9-]*)")