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Opened on 10/06/05 at 02:07:05

Closed on 11/08/05 at 02:43:46

Last modified on 12/03/06 at 13:31:13

#834 closed defect (fixed)

PPC BSP exception handler stack popping fix

Reported by: strauman Owned by: strauman
Priority: lowest Milestone: 2
Component: bsps Version: 4.6
Severity: normal Keywords:
Cc: bugs@… Blocked By:
Blocking:

Description

The PPC ('new') exception handler pops the exception frame by adding a fixed offset (frame size) to the stack pointer (r1). If the exception handler modifies the stack (e.g., gdb does this when 'pushing a dummy frame') this algorithm is incorrect.
The fix reloads r1/SP from the info stored in the exception frame itself.

Release:
4.6.2

Attachments (1)

ppc-r1-from-frame.diff​ (898 bytes) - added by strauman on 12/03/06 at 13:31:12.
ppc-r1-from-frame.diff

Download all attachments as: .zip

Change History (2)

comment:1 Changed on 11/08/05 at 02:43:46 by strauman

Owner: changed from joel to till
Status: assigned → closed

State-Changed-From-To: open->closed
State-Changed-Why: applied to 4.6 branch and head

Changed on 12/03/06 at 13:31:12 by strauman

Attachment: ppc-r1-from-frame.diff​ added

ppc-r1-from-frame.diff

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