Bug 3898 - fstack and fhpd disagree on backtrace format
Summary: fstack and fhpd disagree on backtrace format
Alias: None
Product: frysk
Classification: Unclassified
Component: general (show other bugs)
Version: unspecified
: P2 normal
Target Milestone: ---
Assignee: Nurdin Premji
Depends on:
Blocks: 2244 2246
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Reported: 2007-01-19 23:23 UTC by Andrew Cagney
Modified: 2007-01-23 22:20 UTC (History)
0 users

See Also:
Last reconfirmed:

Proposed patch for CLI to use same string that fstack uses. (376 bytes, patch)
2007-01-23 15:27 UTC, Nurdin Premji
Details | Diff

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Description Andrew Cagney 2007-01-19 23:23:08 UTC
fstack and fhpd format their stack backtraces differently.

  fstack: #0 0x556402 in __kernel_vsyscall ()
  fhpd: # 0 0xcd3402 in __kernel_vsyscall at #0
fstack is better, << at #0 >>, which is a non-existant line, shouldn't be included.

  fstack: #5 0x81133e9 in _start () from: ../../stack.c#225
  fhpd: # 5 0x81133e9 in _start at ../../stack.c#225
(ignoring that I strongly doubt that "_start" is in stack.c), their output
should be consistent.

Likely there should be a generic method, that when passed a stack backtrace
formats it to a writer.
Comment 1 Nurdin Premji 2007-01-23 15:27:39 UTC
Created attachment 1517 [details]
Proposed patch for CLI to use same string that fstack uses.

I don't know what to run to check the fhpd for backtrace format but I'm fairly
sure this will work.
Comment 2 Stan Cox 2007-01-23 16:29:18 UTC
The fhpd 'where' request has been there quite a while, mostly out of necessity.
 I tried to style it after the hpd doc.  Feel free to change it for the better
as far as I am concerned.
Comment 3 Nurdin Premji 2007-01-23 22:20:31 UTC
January 23, 2007
	* hpd/CLI.java (WhereHandler.handle): Changed to use Stackframe.toPrint method.
	(UpDownHandler.handle): Ditto.