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: releng/6.0/sys/sparc64/sparc64/db_interface.c 131952 2004-07-10 23:47:20Z marcel $
   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/linker_set.h>
   36 #include <sys/lock.h>
   37 #include <sys/pcpu.h>
   38 #include <sys/proc.h>
   39 #include <sys/smp.h>
   40 
   41 #include <machine/cpu.h>
   42 #include <machine/md_var.h>
   43 
   44 #include <vm/vm.h>
   45 #include <vm/pmap.h>
   46 
   47 #include <ddb/ddb.h>
   48 #include <ddb/db_access.h>
   49 #include <ddb/db_sym.h>
   50 #include <ddb/db_variables.h>
   51 
   52 #include <machine/atomic.h>
   53 #include <machine/setjmp.h>
   54 
   55 int
   56 db_read_bytes(vm_offset_t addr, size_t size, char *data)
   57 {
   58         jmp_buf jb;
   59         void *prev_jb;
   60         char *src;
   61         int ret;
   62 
   63         prev_jb = kdb_jmpbuf(jb);
   64         ret = setjmp(jb);
   65         if (ret == 0) {
   66                 src = (char *)addr;
   67                 while (size-- > 0)
   68                         *data++ = *src++;
   69         }
   70         (void)kdb_jmpbuf(prev_jb);
   71         return (ret);
   72 }
   73 
   74 int
   75 db_write_bytes(vm_offset_t addr, size_t size, char *data)
   76 {
   77         jmp_buf jb;
   78         void *prev_jb;
   79         char *dst;
   80         int ret;
   81 
   82         prev_jb = kdb_jmpbuf(jb);
   83         ret = setjmp(jb);
   84         if (ret == 0) {
   85                 dst = (char *)addr;
   86                 while (size-- > 0)
   87                         *dst++ = *data++;
   88         }
   89         (void)kdb_jmpbuf(prev_jb);
   90         return (ret);
   91 }
   92 
   93 void
   94 db_show_mdpcpu(struct pcpu *pc)
   95 {
   96 }
   97 
   98 DB_COMMAND(reboot, db_reboot)
   99 {
  100         cpu_reset();
  101 }
  102 
  103 DB_COMMAND(halt, db_halt)
  104 {
  105         cpu_halt();
  106 }

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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