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https://github.com/u-boot/u-boot.git
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dfc0acd0cc
Unless function names are requested, the logging system should not compile these into the code. Adjust the macros to handle this. This means that turning on function names at runtime won't work unless CONFIG_LOGF_FUNC is enabled. We could perhaps split this into a separate option if that is a problem. Enable CONFIG_LOGF_FUNC logging for sandbox since the tests expect the function names to be included. Fix up the pinmux test which checks a logging statement. Signed-off-by: Simon Glass <sjg@chromium.org> Reviewed-by: Quentin Schulz <quentin.schulz@cherry.de>
112 lines
2.6 KiB
C
112 lines
2.6 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Log to syslog.
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*
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* Copyright (c) 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
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*/
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#include <log.h>
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#include <net.h>
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#include <asm/global_data.h>
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DECLARE_GLOBAL_DATA_PTR;
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#define BUFFER_SIZE 480
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static void append(char **buf, char *buf_end, const char *fmt, ...)
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{
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va_list args;
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size_t size = buf_end - *buf;
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va_start(args, fmt);
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vsnprintf(*buf, size, fmt, args);
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va_end(args);
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*buf += strlen(*buf);
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}
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static int log_syslog_emit(struct log_device *ldev, struct log_rec *rec)
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{
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int ret;
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int fmt = gd->log_fmt;
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char msg[BUFFER_SIZE];
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char *msg_end = msg + BUFFER_SIZE;
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char *ptr = msg;
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char *iphdr;
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char *log_msg;
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int eth_hdr_size;
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struct in_addr bcast_ip;
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unsigned int log_level;
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char *log_hostname;
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/* Setup packet buffers */
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ret = net_init();
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if (ret)
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return ret;
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/* Disable hardware and put it into the reset state */
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eth_halt();
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/* Set current device according to environment variables */
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eth_set_current();
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/* Get hardware ready for send and receive operations */
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ret = eth_init();
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if (ret < 0) {
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eth_halt();
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goto out;
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}
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memset(msg, 0, BUFFER_SIZE);
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/* Set ethernet header */
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eth_hdr_size = net_set_ether((uchar *)ptr, net_bcast_ethaddr, PROT_IP);
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ptr += eth_hdr_size;
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iphdr = ptr;
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ptr += IP_UDP_HDR_SIZE;
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log_msg = ptr;
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/*
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* The syslog log levels defined in RFC 5424 match the U-Boot ones up to
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* level 7 (debug).
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*/
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log_level = rec->level;
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if (log_level > 7)
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log_level = 7;
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/* Leave high bits as 0 to write a 'kernel message' */
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/* Write log message to buffer */
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append(&ptr, msg_end, "<%u>", log_level);
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log_hostname = env_get("log_hostname");
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if (log_hostname)
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append(&ptr, msg_end, "%s ", log_hostname);
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append(&ptr, msg_end, "uboot: ");
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if (fmt & BIT(LOGF_LEVEL))
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append(&ptr, msg_end, "%s.",
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log_get_level_name(rec->level));
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if (fmt & BIT(LOGF_CAT))
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append(&ptr, msg_end, "%s,",
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log_get_cat_name(rec->cat));
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if (fmt & BIT(LOGF_FILE))
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append(&ptr, msg_end, "%s:", rec->file);
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if (fmt & BIT(LOGF_LINE))
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append(&ptr, msg_end, "%d-", rec->line);
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if (fmt & BIT(LOGF_FUNC))
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append(&ptr, msg_end, "%s()", rec->func ?: "?");
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if (fmt & BIT(LOGF_MSG))
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append(&ptr, msg_end, "%s%s",
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fmt != BIT(LOGF_MSG) ? " " : "", rec->msg);
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/* Consider trailing 0x00 */
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ptr++;
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debug("log message: '%s'\n", log_msg);
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/* Broadcast message */
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bcast_ip.s_addr = 0xFFFFFFFFL;
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net_set_udp_header((uchar *)iphdr, bcast_ip, 514, 514, ptr - log_msg);
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net_send_packet((uchar *)msg, ptr - msg);
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out:
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return ret;
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}
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LOG_DRIVER(syslog) = {
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.name = "syslog",
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.emit = log_syslog_emit,
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};
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