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(parent: 1cd81ae) | patch
Clear DF bit in eflags/rflags on the kernel entry. The i386 and amd64
authorkib <kib@FreeBSD.org>
Wed, 23 Jun 2010 20:44:07 +0000 (20:44 +0000)
committerkib <kib@FreeBSD.org>
Wed, 23 Jun 2010 20:44:07 +0000 (20:44 +0000)
commit8dcd1daee8fe0803727673a014545c545bf684e4
tree6f2a6ce8d3aa678205f3ae8e8fe722441473ab3etree | snapshot
parent1cd81ae69301b363e554de070b5f1f28f5b93d17commit | diff
Clear DF bit in eflags/rflags on the kernel entry. The i386 and amd64
ABI specifies the DF should be zero, and newer compilers do not clear
DF before using DF-sensitive instructions.

The DF clearing for signal handlers was done some time ago.

MFC after: 1 week
sys/amd64/amd64/exception.S diff | blob | history
sys/amd64/ia32/ia32_exception.S diff | blob | history
sys/amd64/include/asmacros.h diff | blob | history
sys/i386/i386/apic_vector.s diff | blob | history
sys/i386/i386/atpic_vector.s diff | blob | history
sys/i386/i386/exception.s diff | blob | history
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