db_interface.c

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    1 /*-
    2  * Copyright (c) 2001 Jake Burkholder.
    3  * All rights reserved.
    4  *
    5  * Redistribution and use in source and binary forms, with or without
    6  * modification, are permitted provided that the following conditions
    7  * are met:
    8  * 1. Redistributions of source code must retain the above copyright
    9  *    notice, this list of conditions and the following disclaimer.
   10  * 2. Redistributions in binary form must reproduce the above copyright
   11  *    notice, this list of conditions and the following disclaimer in the
   12  *    documentation and/or other materials provided with the distribution.
   13  *
   14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   17  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   18  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   24  * SUCH DAMAGE.
   25  *
   26  * $FreeBSD$
   27  */
   28 
   29 #include <sys/param.h> 
   30 #include <sys/systm.h>
   31 #include <sys/reboot.h>
   32 #include <sys/cons.h>
   33 #include <sys/kdb.h>
   34 #include <sys/ktr.h>
   35 #include <sys/lock.h>
   36 #include <sys/pcpu.h>
   37 #include <sys/proc.h>
   38 #include <sys/smp.h>
   39 
   40 #include <machine/cpu.h>
   41 #include <machine/md_var.h>
   42 
   43 #include <vm/vm.h>
   44 #include <vm/pmap.h>
   45 
   46 #include <ddb/ddb.h>
   47 #include <ddb/db_access.h>
   48 #include <ddb/db_sym.h>
   49 #include <ddb/db_variables.h>
   50 
   51 #include <machine/atomic.h>
   52 #include <machine/setjmp.h>
   53 
   54 int
   55 db_read_bytes(vm_offset_t addr, size_t size, char *data)
   56 {
   57         jmp_buf jb;
   58         void *prev_jb;
   59         char *src;
   60         int ret;
   61 
   62         prev_jb = kdb_jmpbuf(jb);
   63         ret = setjmp(jb);
   64         if (ret == 0) {
   65                 src = (char *)addr;
   66                 while (size-- > 0)
   67                         *data++ = *src++;
   68         }
   69         (void)kdb_jmpbuf(prev_jb);
   70         return (ret);
   71 }
   72 
   73 int
   74 db_write_bytes(vm_offset_t addr, size_t size, char *data)
   75 {
   76         jmp_buf jb;
   77         void *prev_jb;
   78         char *dst;
   79         int ret;
   80 
   81         prev_jb = kdb_jmpbuf(jb);
   82         ret = setjmp(jb);
   83         if (ret == 0) {
   84                 dst = (char *)addr;
   85                 while (size-- > 0)
   86                         *dst++ = *data++;
   87         }
   88         (void)kdb_jmpbuf(prev_jb);
   89         return (ret);
   90 }
   91 
   92 void
   93 db_show_mdpcpu(struct pcpu *pc)
   94 {
   95 }

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FreeBSD/Linux Kernel Cross Reference sys/sparc64/sparc64/db_interface.c

FreeBSD/Linux Kernel Cross Reference
sys/sparc64/sparc64/db_interface.c