| signalcontext.c (129202) | signalcontext.c (137286) |
|---|---|
| 1/*- 2 * Copyright (c) 2004 Olivier Houchard 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) 2004 Olivier Houchard 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/lib/libc/arm/gen/signalcontext.c 129202 2004-05-14 12:04:31Z cognet $"); | 28__FBSDID("$FreeBSD: head/lib/libc/arm/gen/signalcontext.c 137286 2004-11-05 23:53:02Z cognet $"); |
| 29 30#include <sys/param.h> 31#include <sys/signal.h> 32#include <sys/ucontext.h> 33 34#include <machine/frame.h> 35#include <machine/sigframe.h> 36 --- 9 unchanged lines hidden (view full) --- 46extern void _ctx_start(void); 47 48int 49__signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func) 50{ 51 struct sigframe *sfp; 52 __greg_t *gr = ucp->uc_mcontext.__gregs; 53 unsigned int *sp; | 29 30#include <sys/param.h> 31#include <sys/signal.h> 32#include <sys/ucontext.h> 33 34#include <machine/frame.h> 35#include <machine/sigframe.h> 36 --- 9 unchanged lines hidden (view full) --- 46extern void _ctx_start(void); 47 48int 49__signalcontext(ucontext_t *ucp, int sig, __sighandler_t *func) 50{ 51 struct sigframe *sfp; 52 __greg_t *gr = ucp->uc_mcontext.__gregs; 53 unsigned int *sp; |
| 54 mcontext_t *mc; | |
| 55 | 54 |
| 56 mc = &ucp->uc_mcontext; 57 sp = (unsigned int *) 58 (((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & ~7); | 55 sp = (unsigned int *)gr[_REG_SP]; |
| 59 60 sfp = (struct sigframe *)sp - 1; 61 62 bzero(sfp, sizeof(*sfp)); 63 bcopy(ucp, &sfp->sf_uc, sizeof(*ucp)); 64 sfp->sf_si.si_signo = sig; 65 | 56 57 sfp = (struct sigframe *)sp - 1; 58 59 bzero(sfp, sizeof(*sfp)); 60 bcopy(ucp, &sfp->sf_uc, sizeof(*ucp)); 61 sfp->sf_si.si_signo = sig; 62 |
| 66 gr[_REG_SP] = (__greg_t)sp; | 63 gr[_REG_SP] = (__greg_t)sfp; |
| 67 /* Wipe out frame pointer. */ 68 gr[_REG_FP] = 0; 69 /* Arrange for return via the trampoline code. */ | 64 /* Wipe out frame pointer. */ 65 gr[_REG_FP] = 0; 66 /* Arrange for return via the trampoline code. */ |
| 70 gr[_REG_LR] = (__greg_t)_ctx_start; 71 gr[_REG_PC] = (__greg_t)func; 72 gr[_REG_R0] = (__greg_t)ucp; | 67 gr[_REG_PC] = (__greg_t)_ctx_start; 68 gr[_REG_R4] = (__greg_t)func; 69 gr[_REG_R5] = (__greg_t)ucp; 70 gr[_REG_R0] = (__greg_t)sig; 71 gr[_REG_R1] = (__greg_t)&sfp->sf_si; 72 gr[_REG_R2] = (__greg_t)&sfp->sf_uc; |
| 73 74 ucp->uc_link = &sfp->sf_uc; 75 sigdelset(&ucp->uc_sigmask, sig); 76 77 return (0); 78} | 73 74 ucp->uc_link = &sfp->sf_uc; 75 sigdelset(&ucp->uc_sigmask, sig); 76 77 return (0); 78} |