Revision: 18984
Author: [email protected]
Date: Fri Jan 31 11:49:07 2014 UTC
Log: grokdump: Compute correct call destinations and display them
in-place
[email protected]
Review URL: https://codereview.chromium.org/148493008
http://code.google.com/p/v8/source/detail?r=18984
Modified:
/branches/bleeding_edge/tools/grokdump.py
=======================================
--- /branches/bleeding_edge/tools/grokdump.py Thu Sep 19 09:37:31 2013 UTC
+++ /branches/bleeding_edge/tools/grokdump.py Fri Jan 31 11:49:07 2014 UTC
@@ -881,6 +881,19 @@
if stack_slot:
marker = "=>"
code = AnnotateAddresses(heap, line[1])
+
+ # Compute the actual call target which the disassembler is too stupid
+ # to figure out (it adds the call offset to the disassembly offset rather
+ # than the absolute instruction address).
+ if heap.reader.arch == MD_CPU_ARCHITECTURE_X86:
+ if code.startswith("e8"):
+ words = code.split()
+ if len(words) > 6 and words[5] == "call":
+ offset = int(words[4] + words[3] + words[2] + words[1], 16)
+ target = (line_address + offset + 5) & 0xFFFFFFFF
+ code = code.replace(words[6], "0x%08x" % target)
+ # TODO(jkummerow): port this hack to ARM and x64.
+
return "%s%08x %08x: %s" % (marker, line_address, line[0], code)
--
--
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