debug_stream_overlay.conf

# Enable debug-stream protocol
CONFIG_SOF_DEBUG_STREAM_SLOT=y
# Enable text message sending with ds_msg()
CONFIG_SOF_DEBUG_STREAM_TEXT_MSG=y
# Add thread_info-client for debug stream
CONFIG_SOF_DEBUG_STREAM_THREAD_INFO=y
# Zephyr option for storing human readable thread names
CONFIG_THREAD_NAME=y
# For Zephyr to compile with thread names on PTL we need to increase THREAD_BYTES
CONFIG_MAX_THREAD_BYTES=4
# Shrink number of CPU sections
# As the number of supported cores shrink, the available circular
# buffer size increases. This means increased bandwidth. This is
# particularly useful, when debugging a problem on core 0.
#CONFIG_SOF_DEBUG_STREAM_SLOT_FORCE_MAX_CPUS=1

# Direct the assert prints to debug stream
# This option obeys CONFIG_EXCEPTION_DUMP_HOOK_ONLY. If it is selected
# the assert print is sent only to debug stream. Without it the assert
# prints are printed with vprintk too,
CONFIG_SOF_DEBUG_STREAM_TEXT_MSG_ASSERT_PRINT=y

# Debug window slot configuration 1
# The CONFIG_SOF_TELEMETRY uses slot 2, but with performance and IO-performance
# it extends beyond slot 3.
CONFIG_MEMORY_WIN_2_SIZE=16384
CONFIG_SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS=n
CONFIG_SOF_TELEMETRY_IO_PERFORMANCE_MEASUREMENTS=n

# If we turn telemetry off altogether, we can use slot 2. Slot 1 is used by mtrace
#CONFIG_SOF_DEBUG_STREAM_SLOT_NUMBER=2
#CONFIG_SOF_TELEMETRY=n
#CONFIG_SOF_TELEMETRY_PERFORMANCE_MEASUREMENTS=n
#CONFIG_SOF_TELEMETRY_IO_PERFORMANCE_MEASUREMENTS=n

# Enable Zephyr exception printing hook; debug stream is sensitive to this option too
CONFIG_EXCEPTION_DUMP_HOOK=y
# Do not try to send exception prints through logs; this causes problems on PTL with mtrace
CONFIG_EXCEPTION_DUMP_HOOK_ONLY=y
# Print also backtrace through the exception hook
CONFIG_XTENSA_BACKTRACE_EXCEPTION_DUMP_HOOK=y