aeb7ed8c53
by ramlog_initbuf(); Algorithm: Scan the entire ramlog buffer, the position of the head is the first byte is not empty and second byte is empty. The position of the tail is the first byte is empty and second byte is not empty. Change-Id: Ieb9161bd670481cd335e9a901287cd5e589f0849 Signed-off-by: Jiuzhu Dong <dongjiuzhu1@xiaomi.com>
302 lines
8.5 KiB
Plaintext
302 lines
8.5 KiB
Plaintext
#
|
|
# For a description of the syntax of this configuration file,
|
|
# see the file kconfig-language.txt in the NuttX tools repository.
|
|
#
|
|
|
|
menu "System Logging"
|
|
|
|
# Selected if the architecture has its own, built-in SYSLOGging enabled
|
|
|
|
config ARCH_SYSLOG
|
|
bool
|
|
default n
|
|
|
|
# Selected if the SYSLOG device supports multi-byte write operations
|
|
|
|
config SYSLOG_MAX_CHANNELS
|
|
int "Maximum SYSLOG channels"
|
|
default 1
|
|
---help---
|
|
Maximum number of supported SYSLOG channels.
|
|
|
|
config RAMLOG
|
|
bool "RAM log device support"
|
|
default n
|
|
---help---
|
|
This is a driver that was intended to support debugging output,
|
|
aka syslogging, when the normal serial output is not available.
|
|
For example, if you are using a telnet or USB serial console,
|
|
the debug output will get lost. However, the RAMLOG device should
|
|
be usable even if system logging is disabled.
|
|
|
|
This driver is similar to a pipe in that it saves the debugging
|
|
output in a FIFO in RAM. It differs from a pipe in numerous
|
|
details as needed to support logging.
|
|
|
|
if RAMLOG
|
|
config RAMLOG_BUFFER_SECTION
|
|
string "The section where ramlog buffer is located"
|
|
default ".bss"
|
|
depends on RAMLOG_SYSLOG
|
|
---help---
|
|
The section where ramlog buffer is located.
|
|
The section shall not be initialized on system boot.
|
|
|
|
config RAMLOG_BUFSIZE
|
|
int "RAMLOG buffer size"
|
|
default 1024
|
|
depends on RAMLOG_SYSLOG
|
|
---help---
|
|
Size of the console RAM log. Default: 1024
|
|
|
|
config RAMLOG_CRLF
|
|
bool "RAMLOG CR/LF"
|
|
default n
|
|
---help---
|
|
Pre-pend a carriage return before every linefeed that goes into the
|
|
RAM log.
|
|
|
|
config RAMLOG_NONBLOCKING
|
|
bool "RAMLOG non-block reads"
|
|
default y
|
|
---help---
|
|
Reading from the RAMLOG will never block if the RAMLOG is empty. If the RAMLOG
|
|
is empty, then zero is returned (usually interpreted as end-of-file).
|
|
|
|
config RAMLOG_NPOLLWAITERS
|
|
int "RAMLOG number of poll waiters"
|
|
default 4
|
|
---help---
|
|
The maximum number of threads that may be waiting on the poll method.
|
|
|
|
config RAMLOG_OVERWRITE
|
|
bool "RAMLOG overwrite circular buffer"
|
|
default n
|
|
---help---
|
|
Enable overwrite of circular buffer. If RAMLOG buffer overflows,
|
|
overwrite it from the top of buffer and always keep the latest log.
|
|
|
|
endif
|
|
|
|
config SYSLOG_BUFFER
|
|
bool "Use buffered output"
|
|
default n
|
|
select MM_IOB
|
|
---help---
|
|
Enables an buffering logic that will be used to serialize debug
|
|
output from concurrent tasks. This enables allocation of one buffer
|
|
per thread, each of size CONFIG_IOB_BUFSIZE.
|
|
|
|
The use of SYSLOG buffering is optional. If not enabled, however,
|
|
then the output from multiple tasks that attempt to generate SYSLOG
|
|
output may be interleaved and difficult to read.
|
|
|
|
config SYSLOG_INTBUFFER
|
|
bool "Use interrupt buffer"
|
|
default n
|
|
---help---
|
|
Enables an interrupt buffer that will be used to serialize debug
|
|
output from interrupt handlers.
|
|
|
|
config SYSLOG_INTBUFSIZE
|
|
int "Interrupt buffer size"
|
|
default 512
|
|
depends on SYSLOG_INTBUFFER
|
|
---help---
|
|
The size of the interrupt buffer in bytes.
|
|
|
|
config SYSLOG_TIMESTAMP
|
|
bool "Prepend timestamp to syslog message"
|
|
default n
|
|
---help---
|
|
Prepend timestamp to syslog message.
|
|
|
|
config SYSLOG_TIMESTAMP_REALTIME
|
|
bool "Use wall-clock for syslog timestamp"
|
|
default n
|
|
depends on SYSLOG_TIMESTAMP
|
|
---help---
|
|
Use wall-clock (CLOCK_REALTIME) for timestamp. By default,
|
|
CLOCK_MONOTONIC, if enabled, will be used or the system timer
|
|
is not.
|
|
|
|
config SYSLOG_TIMESTAMP_FORMATTED
|
|
bool "Formatted syslog time"
|
|
default n
|
|
depends on SYSLOG_TIMESTAMP_REALTIME
|
|
---help---
|
|
Syslog timestamp will be formatted according to the
|
|
SYSLOG_TIMESTAMP_FORMAT format string.
|
|
|
|
config SYSLOG_TIMESTAMP_LOCALTIME
|
|
bool "Use local-time timestamp"
|
|
default n
|
|
depends on SYSLOG_TIMESTAMP_FORMATTED
|
|
---help---
|
|
If selected local time will be used for the timestamps.
|
|
Else, timestamps will be in UTC.
|
|
|
|
config SYSLOG_TIMESTAMP_FORMAT
|
|
string "Time format"
|
|
default "%e/%m/%y %H:%M:%S"
|
|
depends on SYSLOG_TIMESTAMP_FORMATTED
|
|
---help---
|
|
Formatter string for syslog timestamp printing.
|
|
Uses the standard "strftime" format specifiers.
|
|
|
|
config SYSLOG_TIMESTAMP_BUFFER
|
|
int "Formatted timestamp buffer size"
|
|
default 64
|
|
depends on SYSLOG_TIMESTAMP_FORMATTED
|
|
---help---
|
|
Buffer size to store syslog formatted timestamps.
|
|
|
|
config SYSLOG_PRIORITY
|
|
bool "Prepend priority to syslog message"
|
|
default n
|
|
---help---
|
|
Prepend log priority (severity) to syslog message.
|
|
|
|
config SYSLOG_PROCESS_NAME
|
|
bool "Prepend process name to syslog message"
|
|
default n
|
|
---help---
|
|
Prepend Process name to syslog message.
|
|
|
|
config SYSLOG_PROCESSID
|
|
bool "Prepend process ID to syslog message"
|
|
default n
|
|
---help---
|
|
Prepend Process ID to syslog message.
|
|
|
|
config SYSLOG_PREFIX
|
|
bool "Prepend prefix to syslog message"
|
|
default n
|
|
---help---
|
|
Prepend prefix to syslog message.
|
|
|
|
config SYSLOG_PREFIX_STRING
|
|
string "Prefix string"
|
|
depends on SYSLOG_PREFIX
|
|
default ""
|
|
---help---
|
|
The prefix string to be prepend.
|
|
|
|
config SYSLOG_COLOR_OUTPUT
|
|
bool "Colored syslog output"
|
|
default n
|
|
---help---
|
|
Enables colored output in syslog, according to message priority.
|
|
|
|
choice
|
|
prompt "System log device"
|
|
default SYSLOG_CONSOLE if !ARCH_LOWPUTC
|
|
default SYSLOG_DEFAULT if ARCH_LOWPUTC
|
|
depends on !ARCH_SYSLOG
|
|
|
|
config SYSLOG_CHAR
|
|
bool "Log to a character device"
|
|
---help---
|
|
Enable the generic character device for the SYSLOG. The full path to the
|
|
SYSLOG device is provided by SYSLOG_DEVPATH. A valid character device (or
|
|
file) must exist at this path. It will by opened by syslog_initialize.
|
|
|
|
config RAMLOG_SYSLOG
|
|
bool "Use RAMLOG for SYSLOG"
|
|
depends on RAMLOG && !ARCH_SYSLOG
|
|
---help---
|
|
Use the RAM logging device for the syslogging interface. If this
|
|
feature is enabled (along with SYSLOG), then all debug output (only)
|
|
will be re-directed to the circular buffer in RAM. This RAM log can
|
|
be viewed from NSH using the 'dmesg' command.
|
|
|
|
config SYSLOG_CONSOLE
|
|
bool "Log to /dev/console"
|
|
depends on DEV_CONSOLE
|
|
---help---
|
|
Use the system console as a SYSLOG output device.
|
|
|
|
config SYSLOG_RPMSG
|
|
bool "Log to RPMSG"
|
|
depends on OPENAMP
|
|
depends on SCHED_WORKQUEUE
|
|
---help---
|
|
Use the rpmsg as a SYSLOG output device, send message to remote proc.
|
|
|
|
config SYSLOG_RPMSG_SERVER_NAME
|
|
string "The name of Syslog Rpmsg Server"
|
|
depends on SYSLOG_RPMSG
|
|
---help---
|
|
The proc name of rpmsg server. Client sends message to
|
|
specified name of remote proc.
|
|
|
|
config SYSLOG_DEFAULT
|
|
bool "Default SYSLOG device"
|
|
---help---
|
|
syslog() interfaces will be present, but all output will go to the
|
|
up_putc(ARCH_LOWPUTC == y) or bit-bucket(ARCH_LOWPUTC == n).
|
|
|
|
endchoice
|
|
|
|
config SYSLOG_RPMSG_WORK_DELAY
|
|
int "SYSLOG RPMSG work delay(ms)"
|
|
default 100
|
|
depends on SYSLOG_RPMSG
|
|
|
|
config SYSLOG_RPMSG_SERVER
|
|
bool "Enable RPMSG server for SYSLOG"
|
|
default n
|
|
depends on OPENAMP
|
|
---help---
|
|
Use rpmsg to receive message from remote proc.
|
|
|
|
config SYSLOG_FILE
|
|
bool "Syslog file output"
|
|
default n
|
|
---help---
|
|
Build in support to use a file to collect SYSLOG output. File SYSLOG
|
|
channels differ from other SYSLOG channels in that they cannot be
|
|
established until after fully booting and mounting the target file
|
|
system. The function syslog_file_channel() would need to be called
|
|
from board-specific bring-up logic AFTER mounting the file system
|
|
containing 'devpath'.
|
|
|
|
NOTE interrupt level SYSLOG output will be lost in this case unless
|
|
the interrupt buffer is used.
|
|
|
|
config CONSOLE_SYSLOG
|
|
bool "Use SYSLOG for /dev/console"
|
|
default n
|
|
depends on DEV_CONSOLE && !SYSLOG_CONSOLE
|
|
---help---
|
|
Use the syslog logging device as a system console. If this feature is
|
|
enabled (along with DEV_CONSOLE), then all console output will be
|
|
re-directed to syslog output (syslog_putc). This is useful, for
|
|
example, if the only console is a Telnet console. Then in that case,
|
|
console output from non-Telnet threads will go to the syslog output.
|
|
|
|
config SYSLOG_DEVPATH
|
|
string "System log device"
|
|
default "/dev/ttyS1"
|
|
depends on SYSLOG_CHAR
|
|
---help---
|
|
The full path to the system logging device. For the RAMLOG SYSLOG device,
|
|
this is normally "/dev/ramlog". For character SYSLOG devices, it should be
|
|
some other existing character device (or file) supported by the configuration
|
|
(such as "/dev/ttyS1")/
|
|
|
|
config SYSLOG_CHARDEV
|
|
bool "SYSLOG character device"
|
|
default n
|
|
---help---
|
|
Enables support for a simple character driver at /dev/syslog whose
|
|
write() method will transfer data to the SYSLOG device. This can be
|
|
useful if, for example, you want to redirect the output of a program
|
|
to the SYSLOG.
|
|
|
|
NOTE that unlike other syslog output, this data is unformatted raw
|
|
byte output with no time-stamping or any other SYSLOG features
|
|
supported.
|
|
|
|
endmenu # System logging
|