svn commit: r220597 - head/sys/powerpc/powerpc
Nathan Whitehorn
nwhitehorn at FreeBSD.org
Wed Apr 13 13:24:27 UTC 2011
Author: nwhitehorn
Date: Wed Apr 13 13:24:27 2011
New Revision: 220597
URL: http://svn.freebsd.org/changeset/base/220597
Log:
Make sure that extra threads in 32-bit processes stay in 32-bit mode. This
fixes operation of threaded 32-bit binaries on 64-bit kernels.
Modified:
head/sys/powerpc/powerpc/exec_machdep.c
Modified: head/sys/powerpc/powerpc/exec_machdep.c
==============================================================================
--- head/sys/powerpc/powerpc/exec_machdep.c Wed Apr 13 13:05:48 2011 (r220596)
+++ head/sys/powerpc/powerpc/exec_machdep.c Wed Apr 13 13:24:27 2011 (r220597)
@@ -1015,6 +1015,9 @@ cpu_set_upcall_kse(struct thread *td, vo
tf->srr0 = (register_t)entry;
#ifdef AIM
tf->srr1 = PSL_MBO | PSL_USERSET | PSL_FE_DFLT;
+ #ifdef __powerpc64__
+ tf->srr1 &= ~PSL_SF;
+ #endif
#else
tf->srr1 = PSL_USERSET;
#endif
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