db_interface.c

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    1 /*      $FreeBSD$ */
    2 /*      $NetBSD: db_interface.c,v 1.20 2002/05/13 20:30:09 matt Exp $ */
    3 /*      $OpenBSD: db_interface.c,v 1.2 1996/12/28 06:21:50 rahnds Exp $ */
    4 
    5 #include <sys/param.h>
    6 #include <sys/systm.h>
    7 #include <sys/cons.h>
    8 #include <sys/kdb.h>
    9 #include <sys/ktr.h>
   10 #include <sys/lock.h>
   11 #include <sys/pcpu.h>
   12 #include <sys/proc.h>
   13 #include <sys/smp.h>
   14 
   15 #include <machine/kdb.h>
   16 #include <machine/md_var.h>
   17 
   18 #include <vm/vm.h>
   19 #include <vm/pmap.h>
   20 
   21 #include <ddb/ddb.h>
   22 #include <ddb/db_sym.h>
   23 #include <ddb/db_command.h>
   24 #include <ddb/db_access.h>
   25 #include <ddb/db_output.h>
   26 
   27 #include <dev/ofw/openfirm.h>
   28 
   29 int
   30 db_read_bytes(vm_offset_t addr, size_t size, char *data)
   31 {
   32         jmp_buf jb;
   33         void *prev_jb;
   34         char *src;
   35         int ret;
   36 
   37         prev_jb = kdb_jmpbuf(jb);
   38         ret = setjmp(jb);
   39         if (ret == 0) {
   40                 src = (char *)addr;
   41 
   42                 if (size == 8)
   43                         *((uint64_t*)data) = *((uint64_t*)src);
   44                 if (size == 4)
   45                         *((int *)data) = *((int *)src);
   46                 else if (size == 2)
   47                         *((short *)data) = *((short *)src);
   48                 else
   49                         while (size-- > 0)
   50                                 *data++ = *src++;
   51         }
   52         (void)kdb_jmpbuf(prev_jb);
   53         return (ret);
   54 }
   55 
   56 int
   57 db_write_bytes(vm_offset_t addr, size_t size, char *data)
   58 {
   59         jmp_buf jb;
   60         void *prev_jb;
   61         char *dst;
   62         size_t cnt;
   63         int ret;
   64 
   65         prev_jb = kdb_jmpbuf(jb);
   66         ret = setjmp(jb);
   67         if (ret == 0) {
   68                 dst = (char *)addr;
   69                 cnt = size;
   70 
   71                 if (size == 8)
   72                         *((uint64_t*)dst) = *((uint64_t*)data);
   73                 if (size == 4)
   74                         *((int*)dst) = *((int*)data);
   75                 else
   76                 if (size == 2)
   77                         *((short*)dst) = *((short*)data);
   78                 else
   79                         while (cnt-- > 0)
   80                                 *dst++ = *data++;
   81                 kdb_cpu_sync_icache((void *)addr, size);
   82         }
   83         (void)kdb_jmpbuf(prev_jb);
   84         return (ret);
   85 }
   86 
   87 void
   88 db_show_mdpcpu(struct pcpu *pc)
   89 {
   90 
   91         db_printf("PPC: hwref   = %#zx\n", pc->pc_hwref);
   92         db_printf("PPC: ipimask = %#x\n", pc->pc_ipimask);
   93         db_printf("PPC: flags   = %#x\n", pc->pc_flags);
   94 }

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

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