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[avr-libc-dev] [bugs #4101] setjmp/longjmp destroy changes in global reg
From: |
Eric Weddington |
Subject: |
[avr-libc-dev] [bugs #4101] setjmp/longjmp destroy changes in global registers |
Date: |
Wed, 22 Dec 2004 17:20:58 -0500 |
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This mail is an automated notification from the bugs tracker
of the project: AVR C Runtime Library.
/**************************************************************************/
[bugs #4101] Latest Modifications:
Changes by:
Eric Weddington <address@hidden>
'Date:
Wed 12/22/2004 at 22:08 (America/Denver)
What | Removed | Added
---------------------------------------------------------------------------
Severity | 5 - Average | 7 - Major
Priority | 5 - Normal | 7 - High
/**************************************************************************/
[bugs #4101] Full Item Snapshot:
URL: <http://savannah.nongnu.org/bugs/?func=detailitem&item_id=4101>
Project: AVR C Runtime Library
Submitted by: 0
On: Wed 06/25/2003 at 20:57
Category: Library
Severity: 7 - Major
Priority: 7 - High
Item Group: None
Resolution: None
Privacy: Public
Percent Complete: 0%
Assigned to: None
Originator Email: address@hidden
Status: Open
Summary: setjmp/longjmp destroy changes in global registers
Original Submission: A prologue/epilogue of function, in which there is a
call setjmp(), contains preservation/restoration of all call-saved registers.
Exception make function main() and global register variables.
Nevertheless, setjmp/longjmp too keeps/restores registers r2-r17.
Restoration of local variables after operation longjmp(), certainly is
pleasant, but it is no necessary. But loss of changes in global registers,
in my opinion, is inadmissible.
avr-gcc (GCC) 3.3.1 20030519 (prerelease)
avr-libc-20030422cvs
For detailed info, follow this link:
<http://savannah.nongnu.org/bugs/?func=detailitem&item_id=4101>
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