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* [Bug general/4668] New: fstep misses first few instructions
@ 2007-06-20 15:52 mark at klomp dot org
2007-06-20 16:49 ` [Bug general/4668] " cagney at redhat dot com
` (2 more replies)
0 siblings, 3 replies; 4+ messages in thread
From: mark at klomp dot org @ 2007-06-20 15:52 UTC (permalink / raw)
To: frysk-bugzilla
fstep inserts an instruction observer in updateAttached() but doesn't BLOCK and
wait till the instruction observer is installed. This makes fstep miss the first
few instructions of the process.
This might actually be a bug in how instruction observers are installed in the
attaching states, not directly in fstep. It is reasonable fstep to assume that
in instruction observer is installed immediately instead of being queued in this
case.
See also the related bug #4663.
--
Summary: fstep misses first few instructions
Product: frysk
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: general
AssignedTo: frysk-bugzilla at sourceware dot org
ReportedBy: mark at klomp dot org
http://sourceware.org/bugzilla/show_bug.cgi?id=4668
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* [Bug general/4668] fstep misses first few instructions
2007-06-20 15:52 [Bug general/4668] New: fstep misses first few instructions mark at klomp dot org
@ 2007-06-20 16:49 ` cagney at redhat dot com
2007-07-09 16:35 ` mark at klomp dot org
2007-08-20 10:30 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: cagney at redhat dot com @ 2007-06-20 16:49 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From cagney at redhat dot com 2007-06-20 16:49 -------
fstep needs to keep the task blocked using the attach observer until it as
received an ack confirming that the instruction observer has been added; making
it consistent with mcvet's testcase.
--
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |4663
http://sourceware.org/bugzilla/show_bug.cgi?id=4668
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* [Bug general/4668] fstep misses first few instructions
2007-06-20 15:52 [Bug general/4668] New: fstep misses first few instructions mark at klomp dot org
2007-06-20 16:49 ` [Bug general/4668] " cagney at redhat dot com
@ 2007-07-09 16:35 ` mark at klomp dot org
2007-08-20 10:30 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2007-07-09 16:35 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mark at klomp dot org 2007-07-09 16:34 -------
Fixed by:
frysk-core/frysk/bindir/ChangeLog
2007-07-09 Mark Wielaard <mwielaard@redhat.com>
Fixes bug #4668
* fstep.java: Implement TaskObserver.Code.
(updateAttached): Depending on whether or not the user supplied a
command line to execute or a pid to trace either put a breakpoint
on the first real instruction or start tracing immediately. Return
Action.BLOCK.
(updateHit): New method.
(addedTo): Unblock task.
* TestFStep.java: New test.
frysk-core/frysk/proc/live/ChangeLog
2007-07-09 Mark Wielaard <mwielaard@redhat.com>
* LinuxTaskState.java (wantToAttachContinue): Add
handleAddObservation() and handleUnblock().
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=4668
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* [Bug general/4668] fstep misses first few instructions
2007-06-20 15:52 [Bug general/4668] New: fstep misses first few instructions mark at klomp dot org
2007-06-20 16:49 ` [Bug general/4668] " cagney at redhat dot com
2007-07-09 16:35 ` mark at klomp dot org
@ 2007-08-20 10:30 ` mark at klomp dot org
2 siblings, 0 replies; 4+ messages in thread
From: mark at klomp dot org @ 2007-08-20 10:30 UTC (permalink / raw)
To: frysk-bugzilla
--
Bug 4668 depends on bug 4663, which changed state.
Bug 4663 Summary: TaskObserver.Instruction doesn't appear to unblock on new process' first instructions
http://sourceware.org/bugzilla/show_bug.cgi?id=4663
What |Old Value |New Value
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
http://sourceware.org/bugzilla/show_bug.cgi?id=4668
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2007-06-20 15:52 [Bug general/4668] New: fstep misses first few instructions mark at klomp dot org
2007-06-20 16:49 ` [Bug general/4668] " cagney at redhat dot com
2007-07-09 16:35 ` mark at klomp dot org
2007-08-20 10:30 ` mark at klomp dot org
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