stubs.c revision 1.5.2.6
1 1.5.2.6 nathanw /* $NetBSD: stubs.c,v 1.5.2.6 2002/09/17 21:13:24 nathanw Exp $ */ 2 1.5.2.2 nathanw 3 1.5.2.2 nathanw /* 4 1.5.2.2 nathanw * Copyright (c) 1994-1998 Mark Brinicombe. 5 1.5.2.2 nathanw * Copyright (c) 1994 Brini. 6 1.5.2.2 nathanw * All rights reserved. 7 1.5.2.2 nathanw * 8 1.5.2.2 nathanw * This code is derived from software written for Brini by Mark Brinicombe 9 1.5.2.2 nathanw * 10 1.5.2.2 nathanw * Redistribution and use in source and binary forms, with or without 11 1.5.2.2 nathanw * modification, are permitted provided that the following conditions 12 1.5.2.2 nathanw * are met: 13 1.5.2.2 nathanw * 1. Redistributions of source code must retain the above copyright 14 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer. 15 1.5.2.2 nathanw * 2. Redistributions in binary form must reproduce the above copyright 16 1.5.2.2 nathanw * notice, this list of conditions and the following disclaimer in the 17 1.5.2.2 nathanw * documentation and/or other materials provided with the distribution. 18 1.5.2.2 nathanw * 3. All advertising materials mentioning features or use of this software 19 1.5.2.2 nathanw * must display the following acknowledgement: 20 1.5.2.2 nathanw * This product includes software developed by Mark Brinicombe 21 1.5.2.2 nathanw * for the NetBSD Project. 22 1.5.2.2 nathanw * 4. The name of the company nor the name of the author may be used to 23 1.5.2.2 nathanw * endorse or promote products derived from this software without specific 24 1.5.2.2 nathanw * prior written permission. 25 1.5.2.2 nathanw * 26 1.5.2.2 nathanw * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED 27 1.5.2.2 nathanw * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 28 1.5.2.2 nathanw * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 29 1.5.2.2 nathanw * IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 30 1.5.2.2 nathanw * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 31 1.5.2.2 nathanw * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 32 1.5.2.2 nathanw * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 1.5.2.2 nathanw * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 1.5.2.2 nathanw * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 1.5.2.2 nathanw * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 1.5.2.2 nathanw * SUCH DAMAGE. 37 1.5.2.2 nathanw * 38 1.5.2.2 nathanw * Routines that are temporary or do not have a home yet. 39 1.5.2.2 nathanw * 40 1.5.2.2 nathanw * Created : 17/09/94 41 1.5.2.2 nathanw */ 42 1.5.2.2 nathanw 43 1.5.2.2 nathanw #include <sys/param.h> 44 1.5.2.2 nathanw #include <sys/systm.h> 45 1.5.2.2 nathanw #include <sys/errno.h> 46 1.5.2.2 nathanw #include <sys/proc.h> 47 1.5.2.2 nathanw #include <sys/conf.h> 48 1.5.2.2 nathanw #include <sys/msgbuf.h> 49 1.5.2.2 nathanw #include <uvm/uvm_extern.h> 50 1.5.2.2 nathanw #include <machine/cpu.h> 51 1.5.2.2 nathanw #include <machine/intr.h> 52 1.5.2.2 nathanw #include <machine/bootconfig.h> 53 1.5.2.2 nathanw #include <machine/pcb.h> 54 1.5.2.3 nathanw #include <arm/arm32/machdep.h> 55 1.5.2.2 nathanw 56 1.5.2.2 nathanw extern dev_t dumpdev; 57 1.5.2.2 nathanw extern BootConfig bootconfig; 58 1.5.2.2 nathanw 59 1.5.2.2 nathanw /* 60 1.5.2.2 nathanw * These variables are needed by /sbin/savecore 61 1.5.2.2 nathanw */ 62 1.5.2.5 nathanw u_int32_t dumpmag = 0x8fca0101; /* magic number */ 63 1.5.2.2 nathanw int dumpsize = 0; /* pages */ 64 1.5.2.2 nathanw long dumplo = 0; /* blocks */ 65 1.5.2.2 nathanw 66 1.5.2.2 nathanw struct pcb dumppcb; 67 1.5.2.2 nathanw 68 1.5.2.2 nathanw /* 69 1.5.2.2 nathanw * This is called by main to set dumplo and dumpsize. 70 1.5.2.2 nathanw * Dumps always skip the first CLBYTES of disk space 71 1.5.2.2 nathanw * in case there might be a disk label stored there. 72 1.5.2.2 nathanw * If there is extra space, put dump at the end to 73 1.5.2.2 nathanw * reduce the chance that swapping trashes it. 74 1.5.2.2 nathanw */ 75 1.5.2.2 nathanw 76 1.5.2.2 nathanw void 77 1.5.2.2 nathanw cpu_dumpconf() 78 1.5.2.2 nathanw { 79 1.5.2.6 nathanw const struct bdevsw *bdev; 80 1.5.2.2 nathanw int nblks; /* size of dump area */ 81 1.5.2.2 nathanw 82 1.5.2.2 nathanw if (dumpdev == NODEV) 83 1.5.2.2 nathanw return; 84 1.5.2.6 nathanw bdev = bdevsw_lookup(dumpdev); 85 1.5.2.6 nathanw if (bdev == NULL) 86 1.5.2.2 nathanw panic("dumpconf: bad dumpdev=0x%x", dumpdev); 87 1.5.2.6 nathanw if (bdev->d_psize == NULL) 88 1.5.2.2 nathanw return; 89 1.5.2.6 nathanw nblks = (*bdev->d_psize)(dumpdev); 90 1.5.2.2 nathanw if (nblks <= ctod(1)) 91 1.5.2.2 nathanw return; 92 1.5.2.2 nathanw 93 1.5.2.2 nathanw dumpsize = physmem; 94 1.5.2.2 nathanw 95 1.5.2.2 nathanw /* Always skip the first CLBYTES, in case there is a label there. */ 96 1.5.2.2 nathanw if (dumplo < ctod(1)) 97 1.5.2.2 nathanw dumplo = ctod(1); 98 1.5.2.2 nathanw 99 1.5.2.2 nathanw /* Put dump at end of partition, and make it fit. */ 100 1.5.2.2 nathanw if (dumpsize > dtoc(nblks - dumplo)) 101 1.5.2.2 nathanw dumpsize = dtoc(nblks - dumplo); 102 1.5.2.2 nathanw if (dumplo < nblks - ctod(dumpsize)) 103 1.5.2.2 nathanw dumplo = nblks - ctod(dumpsize); 104 1.5.2.2 nathanw } 105 1.5.2.2 nathanw 106 1.5.2.2 nathanw /* This should be moved to machdep.c */ 107 1.5.2.2 nathanw 108 1.5.2.5 nathanw extern char *memhook; /* XXX */ 109 1.5.2.2 nathanw 110 1.5.2.2 nathanw /* 111 1.5.2.2 nathanw * Doadump comes here after turning off memory management and 112 1.5.2.2 nathanw * getting on the dump stack, either when called above, or by 113 1.5.2.2 nathanw * the auto-restart code. 114 1.5.2.2 nathanw */ 115 1.5.2.2 nathanw 116 1.5.2.2 nathanw void 117 1.5.2.2 nathanw dumpsys() 118 1.5.2.2 nathanw { 119 1.5.2.6 nathanw const struct bdevsw *bdev; 120 1.5.2.2 nathanw daddr_t blkno; 121 1.5.2.2 nathanw int psize; 122 1.5.2.2 nathanw int error; 123 1.5.2.2 nathanw int addr; 124 1.5.2.2 nathanw int block; 125 1.5.2.2 nathanw int len; 126 1.5.2.2 nathanw vaddr_t dumpspace; 127 1.5.2.2 nathanw 128 1.5.2.2 nathanw /* Save registers. */ 129 1.5.2.2 nathanw savectx(&dumppcb); 130 1.5.2.2 nathanw 131 1.5.2.2 nathanw if (dumpdev == NODEV) 132 1.5.2.2 nathanw return; 133 1.5.2.2 nathanw if (dumpsize == 0) { 134 1.5.2.2 nathanw cpu_dumpconf(); 135 1.5.2.2 nathanw if (dumpsize == 0) 136 1.5.2.2 nathanw return; 137 1.5.2.2 nathanw } 138 1.5.2.2 nathanw if (dumplo <= 0) { 139 1.5.2.2 nathanw printf("\ndump to dev %u,%u not possible\n", major(dumpdev), 140 1.5.2.2 nathanw minor(dumpdev)); 141 1.5.2.2 nathanw return; 142 1.5.2.2 nathanw } 143 1.5.2.2 nathanw printf("\ndumping to dev %u,%u offset %ld\n", major(dumpdev), 144 1.5.2.2 nathanw minor(dumpdev), dumplo); 145 1.5.2.2 nathanw 146 1.5.2.2 nathanw blkno = dumplo; 147 1.5.2.5 nathanw dumpspace = (vaddr_t) memhook; 148 1.5.2.2 nathanw 149 1.5.2.6 nathanw bdev = bdevsw_lookup(dumpdev); 150 1.5.2.6 nathanw if (bdev == NULL || bdev->d_psize == NULL) 151 1.5.2.6 nathanw return; 152 1.5.2.6 nathanw psize = (*bdev->d_psize)(dumpdev); 153 1.5.2.2 nathanw printf("dump "); 154 1.5.2.2 nathanw if (psize == -1) { 155 1.5.2.2 nathanw printf("area unavailable\n"); 156 1.5.2.2 nathanw return; 157 1.5.2.2 nathanw } 158 1.5.2.2 nathanw 159 1.5.2.2 nathanw error = 0; 160 1.5.2.2 nathanw len = 0; 161 1.5.2.2 nathanw 162 1.5.2.2 nathanw for (block = 0; block < bootconfig.dramblocks && error == 0; ++block) { 163 1.5.2.2 nathanw addr = bootconfig.dram[block].address; 164 1.5.2.2 nathanw for (;addr < (bootconfig.dram[block].address 165 1.5.2.2 nathanw + (bootconfig.dram[block].pages * NBPG)); addr += NBPG) { 166 1.5.2.2 nathanw if ((len % (1024*1024)) == 0) 167 1.5.2.2 nathanw printf("%d ", len / (1024*1024)); 168 1.5.2.2 nathanw pmap_map(dumpspace, addr, addr + NBPG, VM_PROT_READ); 169 1.5.2.6 nathanw error = (*bdev->d_dump)(dumpdev, 170 1.5.2.2 nathanw blkno, (caddr_t) dumpspace, NBPG); 171 1.5.2.2 nathanw if (error) break; 172 1.5.2.2 nathanw blkno += btodb(NBPG); 173 1.5.2.2 nathanw len += NBPG; 174 1.5.2.2 nathanw } 175 1.5.2.2 nathanw } 176 1.5.2.2 nathanw 177 1.5.2.2 nathanw switch (error) { 178 1.5.2.2 nathanw case ENXIO: 179 1.5.2.2 nathanw printf("device bad\n"); 180 1.5.2.2 nathanw break; 181 1.5.2.2 nathanw 182 1.5.2.2 nathanw case EFAULT: 183 1.5.2.2 nathanw printf("device not ready\n"); 184 1.5.2.2 nathanw break; 185 1.5.2.2 nathanw 186 1.5.2.2 nathanw case EINVAL: 187 1.5.2.2 nathanw printf("area improper\n"); 188 1.5.2.2 nathanw break; 189 1.5.2.2 nathanw 190 1.5.2.2 nathanw case EIO: 191 1.5.2.2 nathanw printf("i/o error\n"); 192 1.5.2.2 nathanw break; 193 1.5.2.2 nathanw 194 1.5.2.2 nathanw case EINTR: 195 1.5.2.2 nathanw printf("aborted from console\n"); 196 1.5.2.2 nathanw break; 197 1.5.2.2 nathanw 198 1.5.2.2 nathanw default: 199 1.5.2.2 nathanw printf("succeeded\n"); 200 1.5.2.2 nathanw break; 201 1.5.2.2 nathanw } 202 1.5.2.2 nathanw printf("\n\n"); 203 1.5.2.2 nathanw delay(1000000); 204 1.5.2.2 nathanw } 205 1.5.2.2 nathanw 206 1.5.2.2 nathanw /* End of stubs.c */ 207
Indexes created Wed Oct 22 13:09:56 GMT 2025