| makecontext.c (129202) | makecontext.c (137286) |
|---|---|
| 1/* $NetBSD: makecontext.c,v 1.2 2003/01/18 11:06:24 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Klaus Klein. --- 23 unchanged lines hidden (view full) --- 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include <sys/cdefs.h> | 1/* $NetBSD: makecontext.c,v 1.2 2003/01/18 11:06:24 thorpej Exp $ */ 2 3/*- 4 * Copyright (c) 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Klaus Klein. --- 23 unchanged lines hidden (view full) --- 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39#include <sys/cdefs.h> |
| 40__FBSDID("$FreeBSD: head/lib/libc/arm/gen/makecontext.c 129202 2004-05-14 12:04:31Z cognet $"); | 40__FBSDID("$FreeBSD: head/lib/libc/arm/gen/makecontext.c 137286 2004-11-05 23:53:02Z cognet $"); |
| 41 42#include <stdlib.h> 43#include <stddef.h> 44#include <inttypes.h> 45#include <ucontext.h> 46 47#include <stdarg.h> 48 | 41 42#include <stdlib.h> 43#include <stddef.h> 44#include <inttypes.h> 45#include <ucontext.h> 46 47#include <stdarg.h> 48 |
| 49extern void _ctx_start(ucontext_t *, int argc, ...); | 49extern void _ctx_start(void); |
| 50 51void 52ctx_done(ucontext_t *ucp) 53{ 54 55 if (ucp->uc_link == NULL) 56 exit(0); 57 else { --- 9 unchanged lines hidden (view full) --- 67{ 68 __greg_t *gr = ucp->uc_mcontext.__gregs; 69 int i; 70 unsigned int *sp; 71 va_list ap; 72 73 /* Compute and align stack pointer. */ 74 sp = (unsigned int *) | 50 51void 52ctx_done(ucontext_t *ucp) 53{ 54 55 if (ucp->uc_link == NULL) 56 exit(0); 57 else { --- 9 unchanged lines hidden (view full) --- 67{ 68 __greg_t *gr = ucp->uc_mcontext.__gregs; 69 int i; 70 unsigned int *sp; 71 va_list ap; 72 73 /* Compute and align stack pointer. */ 74 sp = (unsigned int *) |
| 75 (((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size) & ~7); | 75 (((uintptr_t)ucp->uc_stack.ss_sp + ucp->uc_stack.ss_size - 76 sizeof(double)) & ~7); |
| 76 /* Allocate necessary stack space for arguments exceeding r0-3. */ 77 if (argc > 4) 78 sp -= argc - 4; 79 gr[_REG_SP] = (__greg_t)sp; 80 /* Wipe out frame pointer. */ 81 gr[_REG_FP] = 0; 82 /* Arrange for return via the trampoline code. */ | 77 /* Allocate necessary stack space for arguments exceeding r0-3. */ 78 if (argc > 4) 79 sp -= argc - 4; 80 gr[_REG_SP] = (__greg_t)sp; 81 /* Wipe out frame pointer. */ 82 gr[_REG_FP] = 0; 83 /* Arrange for return via the trampoline code. */ |
| 83 gr[_REG_LR] = (__greg_t)_ctx_start; 84 gr[_REG_PC] = (__greg_t)func; | 84 gr[_REG_PC] = (__greg_t)_ctx_start; 85 gr[_REG_R4] = (__greg_t)func; 86 gr[_REG_R5] = (__greg_t)ucp; |
| 85 86 va_start(ap, argc); 87 /* Pass up to four arguments in r0-3. */ 88 for (i = 0; i < argc && i < 4; i++) 89 gr[_REG_R0 + i] = va_arg(ap, int); 90 /* Pass any additional arguments on the stack. */ 91 for (argc -= i; argc > 0; argc--) 92 *sp++ = va_arg(ap, int); 93 va_end(ap); 94} | 87 88 va_start(ap, argc); 89 /* Pass up to four arguments in r0-3. */ 90 for (i = 0; i < argc && i < 4; i++) 91 gr[_REG_R0 + i] = va_arg(ap, int); 92 /* Pass any additional arguments on the stack. */ 93 for (argc -= i; argc > 0; argc--) 94 *sp++ = va_arg(ap, int); 95 va_end(ap); 96} |