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* [Bug general/4060] New: Missing stack frames on i386
@ 2007-02-15 23:45 mcvet at redhat dot com
2007-02-15 23:48 ` [Bug general/4060] " mcvet at redhat dot com
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-15 23:45 UTC (permalink / raw)
To: frysk-bugzilla
Sometimes when stepping into new functions on i386, the frame being stepped /
from/ may dissapear when performing instruction steps.
TestStackBacktrace.testFramePushing and TestStackBacktrace.testFramePopping are
designed to test this.
These tests do not fail on x86_64 but do appear to fail on x86.
I'll attach a testcase, but the general sitation is that the order of frames
should be:
main -> foo -> jump
but during the push of 'jump' onto the call stack, the trace may show:
main -> jump
and similarly doing the pop of 'jump' off of the call stack.
--
Summary: Missing stack frames on i386
Product: frysk
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: general
AssignedTo: frysk-bugzilla at sourceware dot org
ReportedBy: mcvet at redhat dot com
CC: cagney at redhat dot com,mcvet at redhat dot com,npremji
at redhat dot com
OtherBugsDependingO 1839,3076,3346
nThis:
http://sourceware.org/bugzilla/show_bug.cgi?id=4060
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* [Bug general/4060] Missing stack frames on i386
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
2007-02-15 23:48 ` [Bug general/4060] " mcvet at redhat dot com
2007-02-15 23:48 ` mcvet at redhat dot com
@ 2007-02-15 23:48 ` mcvet at redhat dot com
2007-02-16 16:01 ` mcvet at redhat dot com
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-15 23:48 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-15 23:47 -------
Created an attachment (id=1555)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1555&action=view)
Test program for this bug.
Perform instruction stepping when about to enter jump() and about to exit
jump() to reproduce the bug.
--
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* [Bug general/4060] Missing stack frames on i386
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
@ 2007-02-15 23:48 ` mcvet at redhat dot com
2007-02-15 23:48 ` mcvet at redhat dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-15 23:48 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-15 23:48 -------
Created an attachment (id=1556)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1556&action=view)
Entering jump()
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* [Bug general/4060] Missing stack frames on i386
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
2007-02-15 23:48 ` [Bug general/4060] " mcvet at redhat dot com
@ 2007-02-15 23:48 ` mcvet at redhat dot com
2007-02-15 23:48 ` mcvet at redhat dot com
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-15 23:48 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-15 23:48 -------
Created an attachment (id=1557)
--> (http://sourceware.org/bugzilla/attachment.cgi?id=1557&action=view)
exiting jump()
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* [Bug general/4060] Missing stack frames on i386
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
` (2 preceding siblings ...)
2007-02-15 23:48 ` mcvet at redhat dot com
@ 2007-02-16 16:01 ` mcvet at redhat dot com
2007-02-16 16:10 ` mcvet at redhat dot com
2007-02-20 22:33 ` [Bug general/4060] Stack frame epilogues broken mcvet at redhat dot com
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-16 16:01 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-16 16:01 -------
For what its worth, also reproducable in GDB:
(gdb) bt
#0 jump () at stepper.c:55
#1 0x080483db in foo () at stepper.c:76
#2 0x080483f0 in main () at stepper.c:82
(gdb) stepi
0x08048355 in jump () at stepper.c:55
55 }
(gdb) bt
#0 0x08048355 in jump () at stepper.c:55
#1 0x080483f0 in main () at stepper.c:82
(gdb)
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* [Bug general/4060] Missing stack frames on i386
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
` (3 preceding siblings ...)
2007-02-16 16:01 ` mcvet at redhat dot com
@ 2007-02-16 16:10 ` mcvet at redhat dot com
2007-02-20 22:33 ` [Bug general/4060] Stack frame epilogues broken mcvet at redhat dot com
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-16 16:10 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-16 16:10 -------
Upstream bug:
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=12990#c3
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |SUSPENDED
http://sourceware.org/bugzilla/show_bug.cgi?id=4060
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* [Bug general/4060] Stack frame epilogues broken
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
` (4 preceding siblings ...)
2007-02-16 16:10 ` mcvet at redhat dot com
@ 2007-02-20 22:33 ` mcvet at redhat dot com
5 siblings, 0 replies; 7+ messages in thread
From: mcvet at redhat dot com @ 2007-02-20 22:33 UTC (permalink / raw)
To: frysk-bugzilla
------- Additional Comments From mcvet at redhat dot com 2007-02-20 22:33 -------
This bug only concerns the epilogues of the frames - the prologue part is moved
to #4083
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end of thread, other threads:[~2007-02-20 22:33 UTC | newest]
Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2007-02-15 23:45 [Bug general/4060] New: Missing stack frames on i386 mcvet at redhat dot com
2007-02-15 23:48 ` [Bug general/4060] " mcvet at redhat dot com
2007-02-15 23:48 ` mcvet at redhat dot com
2007-02-15 23:48 ` mcvet at redhat dot com
2007-02-16 16:01 ` mcvet at redhat dot com
2007-02-16 16:10 ` mcvet at redhat dot com
2007-02-20 22:33 ` [Bug general/4060] Stack frame epilogues broken mcvet at redhat dot com
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