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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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 */
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/** @addtogroup klog KLog
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/** @addtogroup klog KLog
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 * @brief   HelenOS KLog
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 * @brief HelenOS KLog
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 * @{
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 * @{
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 */
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 */
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/**
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/**
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 * @file
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 * @file
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 */
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 */
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#include <stdio.h>
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#include <stdio.h>
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#include <ipc/ipc.h>
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#include <ipc/ipc.h>
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#include <async.h>
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#include <async.h>
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#include <ipc/services.h>
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#include <ipc/services.h>
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#include <as.h>
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#include <as.h>
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#include <sysinfo.h>
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#include <sysinfo.h>
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#include <io/stream.h>
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#include <errno.h>
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#define NAME "klog"
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#define KLOG_SIZE PAGE_SIZE
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/* Pointer to klog area */
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/* Pointer to klog area */
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static char *klog;
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static char *klog;
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static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
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static void interrupt_received(ipc_callid_t callid, ipc_call_t *call)
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{
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{
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    int i;
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    async_serialize_start();
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    async_serialize_start();
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    for (i=0; klog[i + IPC_GET_ARG1(*call)] && i < IPC_GET_ARG2(*call); i++)
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    size_t klog_start = (size_t) IPC_GET_ARG1(*call);
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        putchar(klog[i + IPC_GET_ARG1(*call)]);
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    size_t klog_len = (size_t) IPC_GET_ARG2(*call);
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    size_t klog_stored = (size_t) IPC_GET_ARG3(*call);
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    putchar('\n');
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    size_t i;
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    for (i = klog_len - klog_stored; i < klog_len; i++)
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        putchar(klog[(klog_start + i) % KLOG_SIZE]);
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    async_serialize_end();
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    async_serialize_end();
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}
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}
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int main(int argc, char *argv[])
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int main(int argc, char *argv[])
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{
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{
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    int res;
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    void *mapping;
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    console_wait();
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    klog = (char *) as_get_mappable_page(KLOG_SIZE);
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    if (klog == NULL) {
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    printf("Kernel console output.\n");
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        printf(NAME ": Error allocating memory area\n");
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        return -1;
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    }
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    mapping = as_get_mappable_page(PAGE_SIZE);
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    res = ipc_share_in_start_1_0(PHONE_NS, mapping, PAGE_SIZE,
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    int res = ipc_share_in_start_1_0(PHONE_NS, (void *) klog, KLOG_SIZE,
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        SERVICE_MEM_KLOG);
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        SERVICE_MEM_KLOG);
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    if (res) {
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    if (res != EOK) {
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        printf("Failed to initialize klog memarea\n");
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        printf(NAME ": Error initializing memory area\n");
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        _exit(1);
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        return -1;
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    }
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    }
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    klog = mapping;
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    int inr = sysinfo_value("klog.inr");
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    int devno = sysinfo_value("klog.devno");
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    int devno = sysinfo_value("klog.devno");
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    int inr = sysinfo_value("klog.inr");
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    if (ipc_register_irq(inr, devno, 0, NULL)) {
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    if (ipc_register_irq(inr, devno, 0, NULL) != EOK) {
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        printf("Error registering for klog service.\n");
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        printf(NAME ": Error registering klog notifications\n");
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        return 0;
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        return -1;
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    }
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    }
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    async_set_interrupt_received(interrupt_received);
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    async_set_interrupt_received(interrupt_received);
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    klog_update();
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    async_manager();
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    async_manager();
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    return 0;
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    return 0;
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}
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}
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