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
77
78
79
80
81
82
83
84
85
86
87
88
89
|
/*
* SPDX-License-Identifier: BSD-3-Clause
*
* Copyright © 2024 Keith Packard
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
*
* 3. Neither the name of the copyright holder nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <stdint.h>
/* Interrupt functions */
void arc_halt_vector(void);
void
arc_halt_vector(void)
{
for (;;)
;
}
void arc_ignore_vector(void);
void
arc_ignore_vector(void)
{
}
#define isr(name) void arc_##name##_vector(void) __attribute__((weak, alias("arc_ignore_vector")));
#define isr_halt(name) \
void arc_##name##_vector(void) __attribute__((weak, alias("arc_halt_vector")));
isr_halt(memory_error);
isr_halt(instruction_error);
isr_halt(machine_check);
isr(tlb_miss_i);
isr(tlb_miss_d);
isr(prot_v);
isr(privilege_v);
isr(swi);
isr(trap);
isr(extension);
isr(div_zero);
/* dc_error is unused in ARCv3 and de-facto unused in ARCv2 as well */
isr(dc_error);
isr(maligned);
void _start(void);
extern uint8_t __stack[];
#define i(addr, name) [(addr) / 4] = (void (*)(void))arc_##name##_vector
__section(".data.init.enter") void (* const __weak_vector_table[])(void) __attribute((aligned(128)))
= {
[0] = (void *)_start, i(0x04, memory_error), i(0x08, instruction_error),
i(0x0c, machine_check), i(0x10, tlb_miss_i), i(0x14, tlb_miss_d),
i(0x18, prot_v), i(0x1c, privilege_v), i(0x20, swi),
i(0x24, trap), i(0x28, extension), i(0x2c, div_zero),
i(0x30, dc_error), i(0x34, maligned),
};
__weak_reference(__weak_vector_table, __vector_table);
|
