af391b8b3f
Demultiplexer was not ready to handle case when log message was incomplete which was followed by other log messages. Such scenario could occur if there was a fault that happen during logging of a message. In that case incomplete message was followed by valid messages (fault report) and this fault report was not handled because processing was blocked waiting for completion of a message which preceeded fault report. Since it is expected that some messages may be incomplete a garbage collection mechanism is added. When start of a message is received timestamp is logged and list of incomplete messages is checked for 'old' messages which persist in incomplete state for long. When message timeouts it is closed and marked as invalid. It unblocks processing of following messages. Signed-off-by: Krzysztof Chruściński <krzysztof.chruscinski@nordicsemi.no>
118 lines
3.1 KiB
Plaintext
118 lines
3.1 KiB
Plaintext
# Copyright (c) 2022 Nordic Semiconductor ASA
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# SPDX-License-Identifier: Apache-2.0
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menu "Frontends"
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config LOG_FRONTEND_DICT_UART
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bool "UART dictionary frontend"
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select LOG_DICTIONARY_SUPPORT
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select MPSC_PBUF
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depends on UART_ASYNC_API || UART_INTERRUPT_DRIVEN
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imply LOG_FMT_SECTION
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imply LOG_FMT_SECTION_STRIP if !LOG_ALWAYS_RUNTIME
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help
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Frontend sends data in binary dictionary mode.
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if LOG_FRONTEND_DICT_UART
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config LOG_FRONTEND_DICT_UART_BUFFER_SIZE
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int "Buffer size"
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default 1024
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help
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Number of bytes dedicated for buffering data
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config LOG_FRONTEND_DICT_UART_DROPPED_NOTIFY_PERIOD
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int "Dropped notification period"
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default 500
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help
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Determines how often a report about dropped messages is printed. Given
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in milliseconds.
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endif
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config LOG_FRONTEND_STMESP
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bool "Coresight STM frontend"
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imply ARM_ON_ENTER_CPU_IDLE_HOOK if LOG_FRONTEND_STMESP_FLUSH_COUNT > 0
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if LOG_FRONTEND_STMESP
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config LOG_FRONTEND_STMESP_DICT
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bool
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default y if !LOG_FRONTEND_STMESP_FSC
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select LOG_FRONTEND_OPT_API
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select LOG_DICTIONARY_DB
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imply LOG_FMT_SECTION
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imply LOG_FMT_SECTION_STRIP
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config LOG_FRONTEND_STMESP_FSC
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bool "Send fully self-contained messages"
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select LOG_MSG_APPEND_RO_STRING_LOC if !NRF_ETR
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config LOG_FRONTEND_STMESP_FLUSH_COUNT
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int "Number of flushing words"
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default 4
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help
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Before going to sleep CPU shall write to STM some dummy data to ensure
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that any buffered data goes to TPIU/ETR.
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config LOG_FRONTEND_STMESP_EARLY_BUF_SIZE
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int "Buffer size to store early messages"
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default 0
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help
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Frontend cannot write to STM if it is used with ETR buffer unless ETR is
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initialized and memory is properly configured (privileges). Data is stored
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in the buffer and flushed to the STMESP once the pipeline is ready.
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config LOG_FRONTEND_STMESP_DICT_VER
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def_int 0
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config LOG_FRONTEND_STMESP_GUARANTEED_ACCESS
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bool "Use STMESP guaranteed access"
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help
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When enabled, accessing STMESP registers will stall if write cannot be
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performed (e.g. ETR buffer is full).
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endif # LOG_FRONTEND_STMESP
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config LOG_FRONTEND_STMESP_DEMUX
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bool "Demultiplexer of logging packets from STM stream"
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select MPSC_PBUF
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help
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Module demultiplexes messages encoded in STPv2 stream. Messages may
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be interleaved because they may come from multiple cores (majors).
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There are 3 types of messages: logging, tracepoints and HW events.
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if LOG_FRONTEND_STMESP_DEMUX
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config LOG_FRONTEND_STMESP_DEMUX_ACTIVE_PACKETS
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int "Active packets"
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default 12
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config LOG_FRONTEND_STMESP_DEMUX_BUFFER_SIZE
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int "Buffer size"
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default 1024
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config LOG_FRONTEND_STMESP_DEMUX_MAX_UTILIZATION
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bool "Track maximum utilization"
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config LOG_FRONTEND_STMESP_DEMUX_GC_TIMEOUT
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int "Message timeout (in milliseconds)"
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default 100
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help
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If log message is not completed within that time frame it is discarded.
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endif # LOG_FRONTEND_STMESP_DEMUX
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config LOG_FRONTEND_STMESP_FLUSH_PORT_ID
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def_int 0
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depends on LOG_FRONTEND_STMESP_DEMUX || LOG_FRONTEND_STMESP
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config LOG_FRONTEND_STMESP_TP_CHAN_BASE
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def_int 255
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depends on LOG_FRONTEND_STMESP_DEMUX || LOG_FRONTEND_STMESP
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help
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Do not change this value as it is aligned with host decoder (nrfutil trace).
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endmenu
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