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