| vm_machdep.c (282684) | vm_machdep.c (283735) |
|---|---|
| 1/*- 2 * Copyright (c) 1982, 1986 The Regents of the University of California. 3 * Copyright (c) 1989, 1990 William Jolitz 4 * Copyright (c) 1994 John Dyson 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer --- 27 unchanged lines hidden (view full) --- 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 40 * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$ 41 */ 42 43#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 1982, 1986 The Regents of the University of California. 3 * Copyright (c) 1989, 1990 William Jolitz 4 * Copyright (c) 1994 John Dyson 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * the Systems Programming Group of the University of Utah Computer --- 27 unchanged lines hidden (view full) --- 36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 37 * SUCH DAMAGE. 38 * 39 * from: @(#)vm_machdep.c 7.3 (Berkeley) 5/13/91 40 * Utah $Hdr: vm_machdep.c 1.16.1.1 89/06/23$ 41 */ 42 43#include <sys/cdefs.h> |
| 44__FBSDID("$FreeBSD: head/sys/amd64/amd64/vm_machdep.c 282684 2015-05-09 19:11:01Z kib $"); | 44__FBSDID("$FreeBSD: head/sys/amd64/amd64/vm_machdep.c 283735 2015-05-29 13:24:17Z kib $"); |
| 45 46#include "opt_isa.h" 47#include "opt_cpu.h" 48#include "opt_compat.h" 49 50#include <sys/param.h> 51#include <sys/systm.h> 52#include <sys/bio.h> --- 97 unchanged lines hidden (view full) --- 150 register struct proc *p2; 151 struct thread *td2; 152 int flags; 153{ 154 register struct proc *p1; 155 struct pcb *pcb2; 156 struct mdproc *mdp1, *mdp2; 157 struct proc_ldt *pldt; | 45 46#include "opt_isa.h" 47#include "opt_cpu.h" 48#include "opt_compat.h" 49 50#include <sys/param.h> 51#include <sys/systm.h> 52#include <sys/bio.h> --- 97 unchanged lines hidden (view full) --- 150 register struct proc *p2; 151 struct thread *td2; 152 int flags; 153{ 154 register struct proc *p1; 155 struct pcb *pcb2; 156 struct mdproc *mdp1, *mdp2; 157 struct proc_ldt *pldt; |
| 158 pmap_t pmap2; | |
| 159 160 p1 = td1->td_proc; 161 if ((flags & RFPROC) == 0) { 162 if ((flags & RFMEM) == 0) { 163 /* unshare user LDT */ 164 mdp1 = &p1->p_md; 165 mtx_lock(&dt_lock); 166 if ((pldt = mdp1->md_ldt) != NULL && --- 46 unchanged lines hidden (view full) --- 213 */ 214 if ((p1->p_pfsflags & PF_FORK) == 0) 215 td2->td_frame->tf_rflags &= ~PSL_T; 216 217 /* 218 * Set registers for trampoline to user mode. Leave space for the 219 * return address on stack. These are the kernel mode register values. 220 */ | 158 159 p1 = td1->td_proc; 160 if ((flags & RFPROC) == 0) { 161 if ((flags & RFMEM) == 0) { 162 /* unshare user LDT */ 163 mdp1 = &p1->p_md; 164 mtx_lock(&dt_lock); 165 if ((pldt = mdp1->md_ldt) != NULL && --- 46 unchanged lines hidden (view full) --- 212 */ 213 if ((p1->p_pfsflags & PF_FORK) == 0) 214 td2->td_frame->tf_rflags &= ~PSL_T; 215 216 /* 217 * Set registers for trampoline to user mode. Leave space for the 218 * return address on stack. These are the kernel mode register values. 219 */ |
| 221 pmap2 = vmspace_pmap(p2->p_vmspace); | |
| 222 pcb2->pcb_r12 = (register_t)fork_return; /* fork_trampoline argument */ 223 pcb2->pcb_rbp = 0; 224 pcb2->pcb_rsp = (register_t)td2->td_frame - sizeof(void *); 225 pcb2->pcb_rbx = (register_t)td2; /* fork_trampoline argument */ 226 pcb2->pcb_rip = (register_t)fork_trampoline; 227 /*- 228 * pcb2->pcb_dr*: cloned above. 229 * pcb2->pcb_savefpu: cloned above. --- 503 unchanged lines hidden --- | 220 pcb2->pcb_r12 = (register_t)fork_return; /* fork_trampoline argument */ 221 pcb2->pcb_rbp = 0; 222 pcb2->pcb_rsp = (register_t)td2->td_frame - sizeof(void *); 223 pcb2->pcb_rbx = (register_t)td2; /* fork_trampoline argument */ 224 pcb2->pcb_rip = (register_t)fork_trampoline; 225 /*- 226 * pcb2->pcb_dr*: cloned above. 227 * pcb2->pcb_savefpu: cloned above. --- 503 unchanged lines hidden --- |