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[Bug tdep/14222] New: insufficient stack alignment
- From: "jan.kratochvil at redhat dot com" <sourceware-bugzilla at sourceware dot org>
- To: gdb-prs at sourceware dot org
- Date: Mon, 11 Jun 2012 19:03:04 +0000
- Subject: [Bug tdep/14222] New: insufficient stack alignment
- Auto-submitted: auto-generated
http://sourceware.org/bugzilla/show_bug.cgi?id=14222
Bug #: 14222
Summary: insufficient stack alignment
Product: gdb
Version: HEAD
Status: NEW
Severity: normal
Priority: P2
Component: tdep
AssignedTo: unassigned@sourceware.org
ReportedBy: jan.kratochvil@redhat.com
Classification: Unclassified
Target: i386-unknown-linux-gnu
GCC since 4.6 keeps stack aligned to 32 bytes (128 bits).
http://groups.google.com/group/ia32-abi/browse_thread/thread/4f9b3e5069943bf1
AFAIK there is neither Intel CPUs nor glibc requirement for it, 16 bytes
alignment would be sufficient.
amd64-tdep.c already keeps 16 byte alignment but i386-tdep.c does not.
Proposing to increase alignment of both to 32 bytes in all cases.
This is KFAIL tracker for: gdb.arch/i386-sse-stack-align.exp
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