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1 | /* |
1 | /* |
2 | * Copyright (c) 2006 Ondrej Palkovsky |
2 | * Copyright (c) 2006 Ondrej Palkovsky |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | /** @addtogroup klog KLog |
29 | /** @addtogroup klog KLog |
30 | * @brief HelenOS KLog |
30 | * @brief HelenOS KLog |
31 | * @{ |
31 | * @{ |
32 | */ |
32 | */ |
33 | /** |
33 | /** |
34 | * @file |
34 | * @file |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <stdio.h> |
37 | #include <stdio.h> |
38 | #include <ipc/ipc.h> |
38 | #include <ipc/ipc.h> |
39 | #include <async.h> |
39 | #include <async.h> |
40 | #include <ipc/services.h> |
40 | #include <ipc/services.h> |
41 | #include <as.h> |
41 | #include <as.h> |
42 | #include <sysinfo.h> |
42 | #include <sysinfo.h> |
- | 43 | #include <io/stream.h> |
|
- | 44 | #include <errno.h> |
|
- | 45 | ||
- | 46 | #define NAME "klog" |
|
- | 47 | ||
- | 48 | #define KLOG_SIZE PAGE_SIZE |
|
43 | 49 | ||
44 | /* Pointer to klog area */ |
50 | /* Pointer to klog area */ |
45 | static char *klog; |
51 | static char *klog; |
46 | 52 | ||
47 | static void interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
53 | static void interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
48 | { |
54 | { |
49 | int i; |
- | |
50 | - | ||
51 | async_serialize_start(); |
55 | async_serialize_start(); |
- | 56 | ||
52 | for (i=0; klog[i + IPC_GET_ARG1(*call)] && i < IPC_GET_ARG2(*call); i++) |
57 | size_t klog_start = (size_t) IPC_GET_ARG1(*call); |
53 | putchar(klog[i + IPC_GET_ARG1(*call)]); |
58 | size_t klog_len = (size_t) IPC_GET_ARG2(*call); |
- | 59 | size_t klog_stored = (size_t) IPC_GET_ARG3(*call); |
|
54 | putchar('\n'); |
60 | size_t i; |
- | 61 | for (i = klog_len - klog_stored; i < klog_len; i++) |
|
- | 62 | putchar(klog[(klog_start + i) % KLOG_SIZE]); |
|
- | 63 | ||
55 | async_serialize_end(); |
64 | async_serialize_end(); |
56 | } |
65 | } |
57 | 66 | ||
58 | int main(int argc, char *argv[]) |
67 | int main(int argc, char *argv[]) |
59 | { |
68 | { |
- | 69 | klog = (char *) as_get_mappable_page(KLOG_SIZE); |
|
60 | int res; |
70 | if (klog == NULL) { |
- | 71 | printf(NAME ": Error allocating memory area\n"); |
|
61 | void *mapping; |
72 | return -1; |
62 | 73 | } |
|
63 | printf("Kernel console output.\n"); |
- | |
64 | 74 | ||
65 | mapping = as_get_mappable_page(PAGE_SIZE); |
- | |
66 | res = ipc_share_in_start_1_0(PHONE_NS, mapping, PAGE_SIZE, |
75 | int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE, |
67 | SERVICE_MEM_KLOG); |
76 | SERVICE_MEM_KLOG); |
68 | if (res) { |
77 | if (res != EOK) { |
69 | printf("Failed to initialize klog memarea\n"); |
78 | printf(NAME ": Error initializing memory area\n"); |
70 | _exit(1); |
79 | return -1; |
71 | } |
80 | } |
72 | klog = mapping; |
- | |
73 | 81 | ||
74 | int inr = sysinfo_value("klog.inr"); |
82 | int inr = sysinfo_value("klog.inr"); |
75 | int devno = sysinfo_value("klog.devno"); |
83 | int devno = sysinfo_value("klog.devno"); |
76 | if (ipc_register_irq(inr, devno, 0, NULL)) { |
84 | if (ipc_register_irq(inr, devno, 0, NULL) != EOK) { |
77 | printf("Error registering for klog service.\n"); |
85 | printf(NAME ": Error registering klog notifications\n"); |
78 | return 0; |
86 | return -1; |
79 | } |
87 | } |
80 | 88 | ||
81 | async_set_interrupt_received(interrupt_received); |
89 | async_set_interrupt_received(interrupt_received); |
82 | 90 | klog_update(); |
|
83 | async_manager(); |
91 | async_manager(); |
84 | 92 | ||
85 | return 0; |
93 | return 0; |
86 | } |
94 | } |
87 | 95 | ||
88 | /** @} |
96 | /** @} |
89 | */ |
97 | */ |
90 | 98 |