X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal_log.c;fp=lib%2Flibrte_eal%2Flinuxapp%2Feal%2Feal_log.c;h=0b133c3ed8af3c15df58ee8ee7060fe5f834c5ee;hb=97f17497d162afdb82c8704bf097f0fee3724b2e;hp=0000000000000000000000000000000000000000;hpb=e04be89c2409570e0055b2cda60bd11395bb93b0;p=deb_dpdk.git diff --git a/lib/librte_eal/linuxapp/eal/eal_log.c b/lib/librte_eal/linuxapp/eal/eal_log.c new file mode 100644 index 00000000..0b133c3e --- /dev/null +++ b/lib/librte_eal/linuxapp/eal/eal_log.c @@ -0,0 +1,146 @@ +/*- + * BSD LICENSE + * + * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Intel Corporation nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "eal_private.h" + +/* + * default log function, used once mempool (hence log history) is + * available + */ +static ssize_t +console_log_write(__attribute__((unused)) void *c, const char *buf, size_t size) +{ + char copybuf[BUFSIZ + 1]; + ssize_t ret; + uint32_t loglevel; + + /* add this log in history */ + rte_log_add_in_history(buf, size); + + /* write on stdout */ + ret = fwrite(buf, 1, size, stdout); + fflush(stdout); + + /* truncate message if too big (should not happen) */ + if (size > BUFSIZ) + size = BUFSIZ; + + /* Syslog error levels are from 0 to 7, so subtract 1 to convert */ + loglevel = rte_log_cur_msg_loglevel() - 1; + memcpy(copybuf, buf, size); + copybuf[size] = '\0'; + + /* write on syslog too */ + syslog(loglevel, "%s", copybuf); + + return ret; +} + +static cookie_io_functions_t console_log_func = { + .write = console_log_write, +}; + +/* + * set the log to default function, called during eal init process, + * once memzones are available. + */ +int +rte_eal_log_init(const char *id, int facility) +{ + FILE *log_stream; + + log_stream = fopencookie(NULL, "w+", console_log_func); + if (log_stream == NULL) + return -1; + + openlog(id, LOG_NDELAY | LOG_PID, facility); + + if (rte_eal_common_log_init(log_stream) < 0) + return -1; + + return 0; +} + +/* early logs */ + +/* + * early log function, used during boot when mempool (hence log + * history) is not available + */ +static ssize_t +early_log_write(__attribute__((unused)) void *c, const char *buf, size_t size) +{ + ssize_t ret; + ret = fwrite(buf, size, 1, stdout); + fflush(stdout); + if (ret == 0) + return -1; + return ret; +} + +static cookie_io_functions_t early_log_func = { + .write = early_log_write, +}; +static FILE *early_log_stream; + +/* + * init the log library, called by rte_eal_init() to enable early + * logs + */ +int +rte_eal_log_early_init(void) +{ + early_log_stream = fopencookie(NULL, "w+", early_log_func); + if (early_log_stream == NULL) { + printf("Cannot configure early_log_stream\n"); + return -1; + } + rte_openlog_stream(early_log_stream); + return 0; +}