Could you please apply the patch below and provide its output to help
me debug:
--- a/tools/ll_prof.py
+++ b/tools/ll_prof.py
@@ -634,6 +634,8 @@ class TraceReader(object):
# Read null-padded filename.
filename = self.trace[offset + self.header_size +
ctypes.sizeof(mmap_info):
offset + header.size].rstrip(chr(0))
+ if chr(0) in filename:
+ print filename, " ".join("%02x" % ord(x) for x in filename)
mmap_info.filename = filename
return mmap_info
On Jun 27, 6:45 am, tatwai chong <[email protected]> wrote:
> 1. Profile Richards of v8 benchmark:
> $ perf record -R -e cycles -c 10000 -f ../shell_g run.js --ll-prof
> Richards: 8296
> ----
> Score (version 6): 8296
> [ perf record: Woken up 46 times to write data ]
> [ perf record: Captured and wrote 11.464 MB perf.data (~500863
> samples) ]
>
> 2. Use ll_prof.py to process collected data
> $ ../tools/ll_prof.py --disasm-top=10
>
> but ...
> V8 log: v8.log, v8.log.ll (no snapshot)
> Perf trace file: perf.data
> Generated code architecture: ia32
>
> Traceback (most recent call last):
> File "../tools/ll_prof.py", line 902, in <module>
> library_repo.Load(mmap_info, code_map, options)
> File "../tools/ll_prof.py", line 695, in Load
> if not os.path.exists(mmap_info.filename):
> File "/usr/lib/python2.7/genericpath.py", line 18, in exists
> os.stat(path)
> TypeError: must be encoded string without NULL bytes, not str
>
> Does anyone know what problem?
> Thanks.
>
> Regards,
> Tat-Wai
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