diff options
| author | dfr <dfr@FreeBSD.org> | 1998-12-30 10:38:59 +0000 |
|---|---|---|
| committer | dfr <dfr@FreeBSD.org> | 1998-12-30 10:38:59 +0000 |
| commit | 9aad9d912f0ea64471669ecde4beea9e9ead4989 (patch) | |
| tree | 26f76c3cf94310fcb261c62fe3f86fbe1b71440e /sys/powerpc | |
| parent | 14201fe4faa19db2e4da4f4944573149b4654cb8 (diff) | |
| download | FreeBSD-src-9aad9d912f0ea64471669ecde4beea9e9ead4989.zip FreeBSD-src-9aad9d912f0ea64471669ecde4beea9e9ead4989.tar.gz | |
Various changes to support OSF1 emulation:
* Move the user stack from VM_MAXUSER_ADDRESS to a place below the 32bit
boundary (needed to support 32bit OSF programs). This should also save
one pagetable per process.
* Add cvtqlsv to the set of instructions handled by the floating point
software completion code.
* Disable all floating point exceptions by default.
* A minor change to execve to allow the OSF1 image activator to support
dynamic loading.
Diffstat (limited to 'sys/powerpc')
| -rw-r--r-- | sys/powerpc/aim/vm_machdep.c | 10 | ||||
| -rw-r--r-- | sys/powerpc/powerpc/vm_machdep.c | 10 |
2 files changed, 10 insertions, 10 deletions
diff --git a/sys/powerpc/aim/vm_machdep.c b/sys/powerpc/aim/vm_machdep.c index e850785..592a089 100644 --- a/sys/powerpc/aim/vm_machdep.c +++ b/sys/powerpc/aim/vm_machdep.c @@ -38,7 +38,7 @@ * * from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$ - * $Id: vm_machdep.c,v 1.5 1998/12/04 10:52:47 dfr Exp $ + * $Id: vm_machdep.c,v 1.6 1998/12/16 15:21:50 bde Exp $ */ /* * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. @@ -151,11 +151,11 @@ cpu_fork(p1, p2) * Set the floating point state. */ if ((p2->p_addr->u_pcb.pcb_fp_control & IEEE_INHERIT) == 0) { - p2->p_addr->u_pcb.pcb_fp_control = (IEEE_TRAP_ENABLE_INV - | IEEE_TRAP_ENABLE_DZE - | IEEE_TRAP_ENABLE_OVF); + p2->p_addr->u_pcb.pcb_fp_control = 0; p2->p_addr->u_pcb.pcb_fp.fpr_cr = (FPCR_DYN_NORMAL - | FPCR_INED | FPCR_UNFD); + | FPCR_INVD | FPCR_DZED + | FPCR_OVFD | FPCR_INED + | FPCR_UNFD); } /* diff --git a/sys/powerpc/powerpc/vm_machdep.c b/sys/powerpc/powerpc/vm_machdep.c index e850785..592a089 100644 --- a/sys/powerpc/powerpc/vm_machdep.c +++ b/sys/powerpc/powerpc/vm_machdep.c @@ -38,7 +38,7 @@ * * from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$ - * $Id: vm_machdep.c,v 1.5 1998/12/04 10:52:47 dfr Exp $ + * $Id: vm_machdep.c,v 1.6 1998/12/16 15:21:50 bde Exp $ */ /* * Copyright (c) 1994, 1995, 1996 Carnegie-Mellon University. @@ -151,11 +151,11 @@ cpu_fork(p1, p2) * Set the floating point state. */ if ((p2->p_addr->u_pcb.pcb_fp_control & IEEE_INHERIT) == 0) { - p2->p_addr->u_pcb.pcb_fp_control = (IEEE_TRAP_ENABLE_INV - | IEEE_TRAP_ENABLE_DZE - | IEEE_TRAP_ENABLE_OVF); + p2->p_addr->u_pcb.pcb_fp_control = 0; p2->p_addr->u_pcb.pcb_fp.fpr_cr = (FPCR_DYN_NORMAL - | FPCR_INED | FPCR_UNFD); + | FPCR_INVD | FPCR_DZED + | FPCR_OVFD | FPCR_INED + | FPCR_UNFD); } /* |
