1 /*
2  * Copyright (C) 2018 The Android Open Source Project
3  *
4  * Permission is hereby granted, free of charge, to any person
5  * obtaining a copy of this software and associated documentation
6  * files (the "Software"), to deal in the Software without
7  * restriction, including without limitation the rights to use, copy,
8  * modify, merge, publish, distribute, sublicense, and/or sell copies
9  * of the Software, and to permit persons to whom the Software is
10  * furnished to do so, subject to the following conditions:
11  *
12  * The above copyright notice and this permission notice shall be
13  * included in all copies or substantial portions of the Software.
14  *
15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18  * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
19  * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
20  * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
22  * SOFTWARE.
23  */
24 
25 #pragma once
26 
27 #include <stddef.h>
28 #include <stdint.h>
29 
30 /*
31  * Functions to communicate with the host emulator or debugger. Provides
32  * similar functionality to matching syscalls in a user-space process.
33  */
34 
35 enum {
36     HOST_OPEN_MODE_R = 0,    /* r */
37     HOST_OPEN_MODE_RB = 1,   /* rb */
38     HOST_OPEN_MODE_RW = 2,   /* r+ */
39     HOST_OPEN_MODE_RWB = 3,  /* r+b */
40     HOST_OPEN_MODE_W = 4,    /* w */
41     HOST_OPEN_MODE_WB = 5,   /* wb */
42     HOST_OPEN_MODE_WR = 6,   /* w+ */
43     HOST_OPEN_MODE_WRB = 7,  /* w+b */
44     HOST_OPEN_MODE_A = 8,    /* a */
45     HOST_OPEN_MODE_AB = 9,   /* ab */
46     HOST_OPEN_MODE_AR = 10,  /* a+ */
47     HOST_OPEN_MODE_ARB = 11, /* a+b */
48 };
49 
50 void host_exit(uint32_t code);
51 size_t host_get_cmdline(char* strbuf, size_t strbufsize);
52 int host_open(const char* path, uint32_t mode);
53 int host_close(int handle);
54 int host_read(int handle, void* data, size_t size);
55 int host_write(int handle, const void* data, size_t size);
56 int host_system(const char* cmd);
57 
58 int arch_start_secondary_cpus(void);
59 
60 /*
61  * Called from arch to enter test-runner on each cpu.
62  */
63 void boot(int cpu);
64 
65 /*
66  * Boot next operating system.
67  */
68 void boot_next(void);
69