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Diffstat (limited to 'lib/libkvm/kvm_mips.c')
-rw-r--r-- | lib/libkvm/kvm_mips.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/lib/libkvm/kvm_mips.c b/lib/libkvm/kvm_mips.c new file mode 100644 index 0000000..ad0834b --- /dev/null +++ b/lib/libkvm/kvm_mips.c @@ -0,0 +1,120 @@ +/*- + * Copyright (C) 2006 Bruce M. Simpson. + * All rights reserved. + * + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Bruce M. Simpson. + * 4. The name of Bruce M. Simpson may not be used to endorse or promote products + * derived from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY BRUCE M. SIMPSON ``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 BRUCE M. SIMPSON 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. + */ + +/* + * MIPS machine dependent routines for kvm. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/param.h> +#include <sys/elf32.h> +#include <sys/mman.h> + +#include <vm/vm.h> +#include <vm/vm_param.h> +#include <vm/pmap.h> + +#include <machine/pmap.h> + +#include <db.h> +#include <limits.h> +#include <kvm.h> +#include <stdlib.h> +#include <string.h> +#include <unistd.h> + +#include "kvm_private.h" + +/* minidump must be the first item! */ +struct vmstate { + int minidump; /* 1 = minidump mode */ + void *mmapbase; + size_t mmapsize; +}; + +void +_kvm_freevtop(kvm_t *kd) +{ + if (kd->vmst != 0) { + if (kd->vmst->minidump) + return (_kvm_minidump_freevtop(kd)); + if (kd->vmst->mmapbase != NULL) + munmap(kd->vmst->mmapbase, kd->vmst->mmapsize); + free(kd->vmst); + kd->vmst = NULL; + } +} + +int +_kvm_initvtop(kvm_t *kd) +{ + char minihdr[8]; + + if (!kd->rawdump) { + if (pread(kd->pmfd, &minihdr, 8, 0) == 8) { + if (memcmp(&minihdr, "minidump", 8) == 0) + return (_kvm_minidump_initvtop(kd)); + } else { + _kvm_err(kd, kd->program, "cannot read header"); + return (-1); + } + } + + _kvm_err(kd, 0, "_kvm_initvtop: Unsupported image type"); + return (-1); +} + +int +_kvm_kvatop(kvm_t *kd, u_long va, off_t *pa) +{ + + if (kd->vmst->minidump) + return _kvm_minidump_kvatop(kd, va, pa); + + + _kvm_err(kd, 0, "_kvm_kvatop: Unsupported image type"); + return (0); +} + +/* + * Machine-dependent initialization for ALL open kvm descriptors, + * not just those for a kernel crash dump. Some architectures + * have to deal with these NOT being constants! (i.e. m68k) + */ +#ifdef FBSD_NOT_YET +int +_kvm_mdopen(kvm_t *kd __unused) +{ + + return (0); +} +#endif |