kern_context.c (209613) | kern_context.c (218327) |
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1/*- 2 * Copyright (c) 2002 Daniel M. Eischen <deischen@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> | 1/*- 2 * Copyright (c) 2002 Daniel M. Eischen <deischen@freebsd.org> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright --- 11 unchanged lines hidden (view full) --- 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 */ 26 27#include <sys/cdefs.h> |
28__FBSDID("$FreeBSD: head/sys/kern/kern_context.c 209613 2010-06-30 18:03:42Z jhb $"); | 28__FBSDID("$FreeBSD: head/sys/kern/kern_context.c 218327 2011-02-05 15:10:27Z kib $"); |
29 30#include <sys/param.h> 31#include <sys/kernel.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/proc.h> 35#include <sys/syscallsubr.h> 36#include <sys/sysent.h> --- 30 unchanged lines hidden (view full) --- 67 68 if (uap->ucp == NULL) 69 ret = EINVAL; 70 else { 71 get_mcontext(td, &uc.uc_mcontext, GET_MC_CLEAR_RET); 72 PROC_LOCK(td->td_proc); 73 uc.uc_sigmask = td->td_sigmask; 74 PROC_UNLOCK(td->td_proc); | 29 30#include <sys/param.h> 31#include <sys/kernel.h> 32#include <sys/lock.h> 33#include <sys/mutex.h> 34#include <sys/proc.h> 35#include <sys/syscallsubr.h> 36#include <sys/sysent.h> --- 30 unchanged lines hidden (view full) --- 67 68 if (uap->ucp == NULL) 69 ret = EINVAL; 70 else { 71 get_mcontext(td, &uc.uc_mcontext, GET_MC_CLEAR_RET); 72 PROC_LOCK(td->td_proc); 73 uc.uc_sigmask = td->td_sigmask; 74 PROC_UNLOCK(td->td_proc); |
75 bzero(uc.__spare__, sizeof(uc.__spare__)); |
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75 ret = copyout(&uc, uap->ucp, UC_COPY_SIZE); 76 } 77 return (ret); 78} 79 80int 81setcontext(struct thread *td, struct setcontext_args *uap) 82{ --- 20 unchanged lines hidden (view full) --- 103{ 104 ucontext_t uc; 105 int ret; 106 107 if (uap->oucp == NULL || uap->ucp == NULL) 108 ret = EINVAL; 109 else { 110 get_mcontext(td, &uc.uc_mcontext, GET_MC_CLEAR_RET); | 76 ret = copyout(&uc, uap->ucp, UC_COPY_SIZE); 77 } 78 return (ret); 79} 80 81int 82setcontext(struct thread *td, struct setcontext_args *uap) 83{ --- 20 unchanged lines hidden (view full) --- 104{ 105 ucontext_t uc; 106 int ret; 107 108 if (uap->oucp == NULL || uap->ucp == NULL) 109 ret = EINVAL; 110 else { 111 get_mcontext(td, &uc.uc_mcontext, GET_MC_CLEAR_RET); |
112 bzero(uc.__spare__, sizeof(uc.__spare__)); |
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111 PROC_LOCK(td->td_proc); 112 uc.uc_sigmask = td->td_sigmask; 113 PROC_UNLOCK(td->td_proc); 114 ret = copyout(&uc, uap->oucp, UC_COPY_SIZE); 115 if (ret == 0) { 116 ret = copyin(uap->ucp, &uc, UC_COPY_SIZE); 117 if (ret == 0) { 118 ret = set_mcontext(td, &uc.uc_mcontext); 119 if (ret == 0) { 120 kern_sigprocmask(td, SIG_SETMASK, 121 &uc.uc_sigmask, NULL, 0); 122 } 123 } 124 } 125 } 126 return (ret == 0 ? EJUSTRETURN : ret); 127} | 113 PROC_LOCK(td->td_proc); 114 uc.uc_sigmask = td->td_sigmask; 115 PROC_UNLOCK(td->td_proc); 116 ret = copyout(&uc, uap->oucp, UC_COPY_SIZE); 117 if (ret == 0) { 118 ret = copyin(uap->ucp, &uc, UC_COPY_SIZE); 119 if (ret == 0) { 120 ret = set_mcontext(td, &uc.uc_mcontext); 121 if (ret == 0) { 122 kern_sigprocmask(td, SIG_SETMASK, 123 &uc.uc_sigmask, NULL, 0); 124 } 125 } 126 } 127 } 128 return (ret == 0 ? EJUSTRETURN : ret); 129} |