1 /* $NetBSD: core_machdep.c,v 1.5 2011/01/18 01:02:55 matt Exp $ */ 2 3 /* 4 * Copyright (C) 1995, 1996 Wolfgang Solfrank. 5 * Copyright (C) 1995, 1996 TooLs GmbH. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of TooLs GmbH may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 27 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 28 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 30 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF 31 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: core_machdep.c,v 1.5 2011/01/18 01:02:55 matt Exp $"); 36 37 #ifdef _KERNEL_OPT 38 #include "opt_altivec.h" 39 #include "opt_ppcarch.h" 40 #endif 41 42 #include <sys/param.h> 43 #include <sys/core.h> 44 #include <sys/exec.h> 45 #include <sys/proc.h> 46 #include <sys/systm.h> 47 #include <sys/vnode.h> 48 49 #include <sys/exec_aout.h> 50 51 #include <uvm/uvm_extern.h> 52 53 #if defined(ALTIVEC) || defined(PPC_HAVE_SPE) 54 #include <powerpc/altivec.h> 55 #endif 56 #include <machine/fpu.h> 57 #include <machine/pcb.h> 58 59 /* 60 * Write the machine-dependent part of a core dump. 61 */ 62 int 63 cpu_coredump(struct lwp *l, void *iocookie, struct core *chdr) 64 { 65 struct coreseg cseg; 66 struct md_coredump md_core; 67 struct pcb * const pcb = lwp_getpcb(l); 68 int error; 69 70 if (iocookie == NULL) { 71 CORE_SETMAGIC(*chdr, COREMAGIC, MID_POWERPC, 0); 72 chdr->c_hdrsize = ALIGN(sizeof *chdr); 73 chdr->c_seghdrsize = ALIGN(sizeof cseg); 74 chdr->c_cpusize = sizeof md_core; 75 chdr->c_nseg++; 76 return 0; 77 } 78 79 md_core.frame = *trapframe(l); 80 if (l->l_md.md_flags & MDLWP_OWNFPU) { 81 #ifdef PPC_HAVE_FPU 82 fpu_save_lwp(l, FPU_SAVE); 83 #endif 84 md_core.fpstate = pcb->pcb_fpu; 85 } else 86 memset(&md_core.fpstate, 0, sizeof(md_core.fpstate)); 87 88 #if defined(ALTIVEC) || defined(PPC_HAVE_SPE) 89 if (l->l_md.md_flags & MDLWP_OWNVEC) { 90 vec_save_lwp(l, VEC_SAVE); 91 md_core.vstate = pcb->pcb_vr; 92 } else 93 #endif 94 memset(&md_core.vstate, 0, sizeof(md_core.vstate)); 95 96 CORE_SETMAGIC(cseg, CORESEGMAGIC, MID_MACHINE, CORE_CPU); 97 cseg.c_addr = 0; 98 cseg.c_size = chdr->c_cpusize; 99 100 error = coredump_write(iocookie, UIO_SYSSPACE, &cseg, 101 chdr->c_seghdrsize); 102 if (error) 103 return error; 104 105 return coredump_write(iocookie, UIO_SYSSPACE, &md_core, 106 sizeof(md_core)); 107 } 108