Rev 4348 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
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| 1596 | palkovsky | 1 | /* |
| 2071 | jermar | 2 | * Copyright (c) 2006 Ondrej Palkovsky |
| 1596 | palkovsky | 3 | * All rights reserved. |
| 4 | * |
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| 5 | * Redistribution and use in source and binary forms, with or without |
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| 6 | * modification, are permitted provided that the following conditions |
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| 7 | * are met: |
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| 8 | * |
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| 9 | * - Redistributions of source code must retain the above copyright |
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| 10 | * notice, this list of conditions and the following disclaimer. |
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| 11 | * - Redistributions in binary form must reproduce the above copyright |
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| 12 | * notice, this list of conditions and the following disclaimer in the |
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| 13 | * documentation and/or other materials provided with the distribution. |
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| 14 | * - The name of the author may not be used to endorse or promote products |
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| 15 | * derived from this software without specific prior written permission. |
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| 16 | * |
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 27 | */ |
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| 28 | |||
| 1653 | cejka | 29 | /** @addtogroup klog KLog |
| 4345 | svoboda | 30 | * @brief HelenOS KLog |
| 1653 | cejka | 31 | * @{ |
| 4345 | svoboda | 32 | */ |
| 1653 | cejka | 33 | /** |
| 34 | * @file |
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| 35 | */ |
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| 36 | |||
| 1596 | palkovsky | 37 | #include <stdio.h> |
| 38 | #include <ipc/ipc.h> |
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| 39 | #include <async.h> |
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| 40 | #include <ipc/services.h> |
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| 41 | #include <as.h> |
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| 1923 | jermar | 42 | #include <sysinfo.h> |
| 4347 | svoboda | 43 | #include <event.h> |
| 3153 | svoboda | 44 | #include <errno.h> |
| 4691 | svoboda | 45 | #include <io/klog.h> |
| 1596 | palkovsky | 46 | |
| 4691 | svoboda | 47 | #define NAME "klog" |
| 3153 | svoboda | 48 | |
| 1596 | palkovsky | 49 | /* Pointer to klog area */ |
| 4348 | svoboda | 50 | static wchar_t *klog; |
| 4691 | svoboda | 51 | static size_t klog_length; |
| 1596 | palkovsky | 52 | |
| 1721 | palkovsky | 53 | static void interrupt_received(ipc_callid_t callid, ipc_call_t *call) |
| 1596 | palkovsky | 54 | { |
| 4691 | svoboda | 55 | size_t klog_start = (size_t) IPC_GET_ARG1(*call); |
| 56 | size_t klog_len = (size_t) IPC_GET_ARG2(*call); |
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| 57 | size_t klog_stored = (size_t) IPC_GET_ARG3(*call); |
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| 58 | size_t i; |
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| 1596 | palkovsky | 59 | |
| 3153 | svoboda | 60 | for (i = klog_len - klog_stored; i < klog_len; i++) |
| 4348 | svoboda | 61 | putchar(klog[(klog_start + i) % klog_length]); |
| 1596 | palkovsky | 62 | } |
| 63 | |||
| 64 | int main(int argc, char *argv[]) |
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| 65 | { |
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| 4691 | svoboda | 66 | size_t klog_pages = sysinfo_value("klog.pages"); |
| 4348 | svoboda | 67 | size_t klog_size = klog_pages * PAGE_SIZE; |
| 68 | klog_length = klog_size / sizeof(wchar_t); |
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| 69 | |||
| 4691 | svoboda | 70 | klog = (wchar_t *) as_get_mappable_page(klog_size); |
| 3153 | svoboda | 71 | if (klog == NULL) { |
| 72 | printf(NAME ": Error allocating memory area\n"); |
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| 73 | return -1; |
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| 74 | } |
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| 3560 | svoboda | 75 | |
| 4348 | svoboda | 76 | printf("got area at 0x%08lx, length %lx byes\n", klog, klog_size); |
| 3153 | svoboda | 77 | |
| 4348 | svoboda | 78 | int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, |
| 79 | klog_size, SERVICE_MEM_KLOG); |
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| 3153 | svoboda | 80 | if (res != EOK) { |
| 81 | printf(NAME ": Error initializing memory area\n"); |
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| 82 | return -1; |
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| 1596 | palkovsky | 83 | } |
| 4338 | svoboda | 84 | |
| 4347 | svoboda | 85 | if (event_subscribe(EVENT_KLOG, 0) != EOK) { |
| 3153 | svoboda | 86 | printf(NAME ": Error registering klog notifications\n"); |
| 87 | return -1; |
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| 1596 | palkovsky | 88 | } |
| 3153 | svoboda | 89 | |
| 1596 | palkovsky | 90 | async_set_interrupt_received(interrupt_received); |
| 3153 | svoboda | 91 | klog_update(); |
| 1596 | palkovsky | 92 | async_manager(); |
| 4348 | svoboda | 93 | |
| 1596 | palkovsky | 94 | return 0; |
| 95 | } |
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| 1653 | cejka | 96 | |
| 97 | /** @} |
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| 98 | */ |