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[Bug libc/610] New: get/swapcontext stores fpr29 over gpr29 in ucontext
- From: "sjmunroe at us dot ibm dot com" <sourceware-bugzilla at sources dot redhat dot com>
- To: glibc-bugs at sources dot redhat dot com
- Date: 16 Dec 2004 18:11:02 -0000
- Subject: [Bug libc/610] New: get/swapcontext stores fpr29 over gpr29 in ucontext
- Reply-to: sourceware-bugzilla at sources dot redhat dot com
Due to a typo powerpc64/getcontext.S and powerpc64/swapcontext.S store gpr29 af
offset 464 (correctly) then later stores fpr29 at the same offset 464 instead of
the correct offset (848). This globbers the value of grp29 and does not preserve
the value of fpr29. So setcontext/swapcontext can't restore the correct
grp29/fpr29 values.
--
Summary: get/swapcontext stores fpr29 over gpr29 in ucontext
Product: glibc
Version: 2.3.3
Status: NEW
Severity: critical
Priority: P1
Component: libc
AssignedTo: gotom at debian dot or dot jp
ReportedBy: sjmunroe at us dot ibm dot com
CC: glibc-bugs at sources dot redhat dot com,sjmunroe at us
dot ibm dot com
GCC build triplet: powerpc64-linux
GCC host triplet: powerpc64-linux
GCC target triplet: powerpc64-linux
http://sources.redhat.com/bugzilla/show_bug.cgi?id=610
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