1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
|
/*
* Copyright 2014 Google Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but without any warranty; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <exception.h>
#include <gdb.h>
#include <libpayload.h>
struct gdb_regs
{
u64 x[32];
struct fp_reg
{
u64 quad[2];
} __attribute__((packed)) f[32];
u32 fpcr;
u32 fpsr;
u32 spsr;
} __attribute__((packed));
static const u8 type_to_signal[] = {
[EXC_SYNC_SP0] = GDB_SIGTRAP,
[EXC_IRQ_SP0] = GDB_SIGSEGV,
[EXC_FIQ_SP0] = GDB_SIGSEGV,
[EXC_SERROR_SP0] = GDB_SIGSEGV,
[EXC_SYNC_SPX] = GDB_SIGTRAP,
[EXC_IRQ_SPX] = GDB_SIGSEGV,
[EXC_FIQ_SPX] = GDB_SIGSEGV,
[EXC_SERROR_SPX] = GDB_SIGSEGV,
[EXC_SYNC_ELX_64] = GDB_SIGTRAP,
[EXC_IRQ_ELX_64] = GDB_SIGSEGV,
[EXC_FIQ_ELX_64] = GDB_SIGSEGV,
[EXC_SERROR_ELX_64] = GDB_SIGSEGV,
[EXC_SYNC_ELX_32] = GDB_SIGTRAP,
[EXC_IRQ_ELX_32] = GDB_SIGSEGV,
[EXC_FIQ_ELX_32] = GDB_SIGSEGV,
[EXC_SERROR_ELX_32] = GDB_SIGSEGV
};
static int gdb_exception_hook(u32 type)
{
return -1;
}
void gdb_arch_init(void)
{
exception_install_hook(&gdb_exception_hook);
}
void gdb_arch_enter(void)
{
}
int gdb_arch_set_single_step(int on)
{
/* GDB seems to only need this on x86, ARM works fine without it. */
return -1;
}
void gdb_arch_encode_regs(struct gdb_message *message)
{
}
void gdb_arch_decode_regs(int offset, struct gdb_message *message)
{
}
|
