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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> |
43 | #include <io/stream.h> |
44 | #include <console.h> |
44 | #include <console.h> |
45 | #include <event.h> |
45 | #include <event.h> |
46 | #include <errno.h> |
46 | #include <errno.h> |
47 | 47 | ||
48 | #define NAME "klog" |
48 | #define NAME "klog" |
49 | 49 | ||
50 | #define KLOG_SIZE PAGE_SIZE |
- | |
51 | - | ||
52 | /* Pointer to klog area */ |
50 | /* Pointer to klog area */ |
53 | static char *klog; |
51 | static wchar_t *klog; |
- | 52 | static count_t klog_length; |
|
54 | 53 | ||
55 | static void interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
54 | static void interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
56 | { |
55 | { |
57 | async_serialize_start(); |
56 | async_serialize_start(); |
58 | 57 | ||
59 | size_t klog_start = (size_t) IPC_GET_ARG1(*call); |
58 | count_t klog_start = (count_t) IPC_GET_ARG1(*call); |
60 | size_t klog_len = (size_t) IPC_GET_ARG2(*call); |
59 | count_t klog_len = (count_t) IPC_GET_ARG2(*call); |
61 | size_t klog_stored = (size_t) IPC_GET_ARG3(*call); |
60 | count_t klog_stored = (count_t) IPC_GET_ARG3(*call); |
62 | size_t i; |
61 | count_t i; |
- | 62 | ||
63 | for (i = klog_len - klog_stored; i < klog_len; i++) |
63 | for (i = klog_len - klog_stored; i < klog_len; i++) |
64 | putchar(klog[(klog_start + i) % KLOG_SIZE]); |
64 | putchar(klog[(klog_start + i) % klog_length]); |
65 | 65 | ||
66 | async_serialize_end(); |
66 | async_serialize_end(); |
67 | } |
67 | } |
68 | 68 | ||
69 | int main(int argc, char *argv[]) |
69 | int main(int argc, char *argv[]) |
70 | { |
70 | { |
71 | console_wait(); |
71 | console_wait(); |
72 | 72 | ||
- | 73 | count_t klog_pages = sysinfo_value("klog.pages"); |
|
- | 74 | size_t klog_size = klog_pages * PAGE_SIZE; |
|
- | 75 | klog_length = klog_size / sizeof(wchar_t); |
|
- | 76 | ||
73 | klog = (char *) as_get_mappable_page(KLOG_SIZE); |
77 | klog = (wchar_t *) as_get_mappable_page(klog_pages); |
74 | if (klog == NULL) { |
78 | if (klog == NULL) { |
75 | printf(NAME ": Error allocating memory area\n"); |
79 | printf(NAME ": Error allocating memory area\n"); |
76 | return -1; |
80 | return -1; |
77 | } |
81 | } |
78 | 82 | ||
79 | int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE, |
83 | int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, |
80 | SERVICE_MEM_KLOG); |
84 | klog_size, SERVICE_MEM_KLOG); |
81 | if (res != EOK) { |
85 | if (res != EOK) { |
82 | printf(NAME ": Error initializing memory area\n"); |
86 | printf(NAME ": Error initializing memory area\n"); |
83 | return -1; |
87 | return -1; |
84 | } |
88 | } |
85 | 89 | ||
86 | if (event_subscribe(EVENT_KLOG, 0) != EOK) { |
90 | if (event_subscribe(EVENT_KLOG, 0) != EOK) { |
87 | printf(NAME ": Error registering klog notifications\n"); |
91 | printf(NAME ": Error registering klog notifications\n"); |
88 | return -1; |
92 | return -1; |
89 | } |
93 | } |
90 | 94 | ||
91 | async_set_interrupt_received(interrupt_received); |
95 | async_set_interrupt_received(interrupt_received); |
92 | klog_update(); |
96 | klog_update(); |
93 | async_manager(); |
97 | async_manager(); |
94 | 98 | ||
95 | return 0; |
99 | return 0; |
96 | } |
100 | } |
97 | 101 | ||
98 | /** @} |
102 | /** @} |
99 | */ |
103 | */ |
100 | 104 |