From 8296e78c83a04c8597913b76699372c8092068aa Mon Sep 17 00:00:00 2001 From: John Baldwin Date: Thu, 26 Nov 2015 19:39:15 +0000 Subject: [PATCH] Remove kvm_sparc.c. This is for 32-bit sparc support and was imported from 4.4BSD. It has never been used by FreeBSD. --- lib/libkvm/kvm_sparc.c | 236 ----------------------------------------- 1 file changed, 236 deletions(-) delete mode 100644 lib/libkvm/kvm_sparc.c diff --git a/lib/libkvm/kvm_sparc.c b/lib/libkvm/kvm_sparc.c deleted file mode 100644 index bafd08c07851..000000000000 --- a/lib/libkvm/kvm_sparc.c +++ /dev/null @@ -1,236 +0,0 @@ -/*- - * Copyright (c) 1992, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software developed by the Computer Systems - * Engineering group at Lawrence Berkeley Laboratory under DARPA contract - * BG 91-66 and contributed to Berkeley. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * 4. Neither the name of the University nor the names of its contributors - * may be used to endorse or promote products derived from this software - * without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND - * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE - * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE - * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL - * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS - * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT - * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY - * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF - * SUCH DAMAGE. - */ - -#include -__FBSDID("$FreeBSD$"); - -#if defined(LIBC_SCCS) && !defined(lint) -#if 0 -static char sccsid[] = "@(#)kvm_sparc.c 8.1 (Berkeley) 6/4/93"; -#endif -#endif /* LIBC_SCCS and not lint */ - -/* - * Sparc machine dependent routines for kvm. Hopefully, the forthcoming - * vm code will one day obsolete this module. - */ - -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -#include - -#include "kvm_private.h" - -#define NPMEG 128 - -/* XXX from sparc/pmap.c */ -#define MAXMEM (128 * 1024 * 1024) /* no more than 128 MB phys mem */ -#define NPGBANK 16 /* 2^4 pages per bank (64K / bank) */ -#define BSHIFT 4 /* log2(NPGBANK) */ -#define BOFFSET (NPGBANK - 1) -#define BTSIZE (MAXMEM / NBPG / NPGBANK) -#define HWTOSW(pmap_stod, pg) (pmap_stod[(pg) >> BSHIFT] | ((pg) & BOFFSET)) - -struct vmstate { - pmeg_t segmap[NKSEG]; - int pmeg[NPMEG][NPTESG]; - int pmap_stod[BTSIZE]; /* dense to sparse */ -}; - -void -_kvm_freevtop(kd) - kvm_t *kd; -{ - if (kd->vmst != 0) - free(kd->vmst); -} - -int -_kvm_initvtop(kd) - kvm_t *kd; -{ - int i; - int off; - struct vmstate *vm; - struct stat st; - struct nlist nlist[2]; - - vm = (struct vmstate *)_kvm_malloc(kd, sizeof(*vm)); - if (vm == 0) - return (-1); - - kd->vmst = vm; - - if (fstat(kd->pmfd, &st) < 0) - return (-1); - /* - * Read segment table. - */ - off = st.st_size - ctob(btoc(sizeof(vm->segmap))); - errno = 0; - if (lseek(kd->pmfd, (off_t)off, 0) == -1 && errno != 0 || - read(kd->pmfd, (char *)vm->segmap, sizeof(vm->segmap)) < 0) { - _kvm_err(kd, kd->program, "cannot read segment map"); - return (-1); - } - /* - * Read PMEGs. - */ - off = st.st_size - ctob(btoc(sizeof(vm->pmeg)) + - btoc(sizeof(vm->segmap))); - errno = 0; - if (lseek(kd->pmfd, (off_t)off, 0) == -1 && errno != 0 || - read(kd->pmfd, (char *)vm->pmeg, sizeof(vm->pmeg)) < 0) { - _kvm_err(kd, kd->program, "cannot read PMEG table"); - return (-1); - } - /* - * Make pmap_stod be an identity map so we can bootstrap it in. - * We assume it's in the first contiguous chunk of physical memory. - */ - for (i = 0; i < BTSIZE; ++i) - vm->pmap_stod[i] = i << 4; - - /* - * It's okay to do this nlist separately from the one kvm_getprocs() - * does, since the only time we could gain anything by combining - * them is if we do a kvm_getprocs() on a dead kernel, which is - * not too common. - */ - nlist[0].n_name = "_pmap_stod"; - nlist[1].n_name = 0; - if (kvm_nlist(kd, nlist) != 0) { - _kvm_err(kd, kd->program, "pmap_stod: no such symbol"); - return (-1); - } - if (kvm_read(kd, (u_long)nlist[0].n_value, - (char *)vm->pmap_stod, sizeof(vm->pmap_stod)) - != sizeof(vm->pmap_stod)) { - _kvm_err(kd, kd->program, "cannot read pmap_stod"); - return (-1); - } - return (0); -} - -#define VA_OFF(va) (va & (NBPG - 1)) - -/* - * Translate a user virtual address to a physical address. - */ -int -_kvm_uvatop(kd, p, va, pa) - kvm_t *kd; - const struct proc *p; - u_long va; - u_long *pa; -{ - int kva, pte; - int off, frame; - struct vmspace *vms = p->p_vmspace; - - if ((u_long)vms < KERNBASE) { - _kvm_err(kd, kd->program, "_kvm_uvatop: corrupt proc"); - return (0); - } - if (va >= KERNBASE) - return (0); - /* - * Get the PTE. This takes two steps. We read the - * base address of the table, then we index it. - * Note that the index pte table is indexed by - * virtual segment rather than physical segment. - */ - kva = (u_long)&vms->vm_pmap.pm_rpte[VA_VSEG(va)]; - if (kvm_read(kd, kva, (char *)&kva, 4) != 4 || kva == 0) - goto invalid; - kva += sizeof(vms->vm_pmap.pm_rpte[0]) * VA_VPG(va); - if (kvm_read(kd, kva, (char *)&pte, 4) == 4 && (pte & PG_V)) { - off = VA_OFF(va); - /* - * /dev/mem adheres to the hardware model of physical memory - * (with holes in the address space), while crashdumps - * adhere to the contiguous software model. - */ - if (ISALIVE(kd)) - frame = pte & PG_PFNUM; - else - frame = HWTOSW(kd->vmst->pmap_stod, pte & PG_PFNUM); - *pa = (frame << PGSHIFT) | off; - return (NBPG - off); - } -invalid: - _kvm_err(kd, 0, "invalid address (%x)", va); - return (0); -} - -/* - * Translate a kernel virtual address to a physical address using the - * mapping information in kd->vm. Returns the result in pa, and returns - * the number of bytes that are contiguously available from this - * physical address. This routine is used only for crashdumps. - */ -int -_kvm_kvatop(kd, va, pa) - kvm_t *kd; - u_long va; - uint64_t *pa; -{ - struct vmstate *vm; - int s; - int pte; - int off; - - if (va >= KERNBASE) { - vm = kd->vmst; - s = vm->segmap[VA_VSEG(va) - NUSEG]; - pte = vm->pmeg[s][VA_VPG(va)]; - if ((pte & PG_V) != 0) { - off = VA_OFF(va); - *pa = (HWTOSW(vm->pmap_stod, pte & PG_PFNUM) - << PGSHIFT) | off; - - return (NBPG - off); - } - } - _kvm_err(kd, 0, "invalid address (%x)", va); - return (0); -}