zephyr

History

Wealian Liao 7467dc4c12 tracing_user: Add ISR nest level parameter For tracing_user, the sys_trace_isr_enter() & sys_trace_isr_exit() block any nest interrupts & most SMP interrupts for the user. It is hard to analyze the IRQ preemption(e.g., each IRQ counter and execution time). This commit adds ISR nest level for each CPU to the user instead of blocking user call back when nest interrupts. Signed-off-by: Wealian Liao <WHLIAO@nuvoton.com>		2022-01-21 14:38:35 -05:00
..
src	tracing_user: Add ISR nest level parameter	2022-01-21 14:38:35 -05:00
CMakeLists.txt	samples: tracing: Add a sample for tracing_user	2021-09-02 06:54:35 -04:00
prj_native_posix_ctf.conf
prj_native_posix.conf
prj_sysview.conf
prj_uart_ctf.conf
prj_uart.conf
prj_usb_ctf.conf	samples: remove USB configuration option	2021-08-03 19:00:12 -04:00
prj_usb.conf	samples: remove USB configuration option	2021-08-03 19:00:12 -04:00
prj_user.conf	tracing: Fix tracing_user config	2022-01-11 18:13:18 -05:00
prj.conf	tests: tracing.osawareness.openocd cleanup	2021-10-13 06:22:44 -04:00
README.txt
sample.yaml	tracing: Fix tracing_user config	2022-01-11 18:13:18 -05:00

README.txt

Title: Send Tracing Formated Packet To The Host With Supported Backends

Description:

This application can be used to demonstrate the tracing feature. The tracing
formated packet will be sent to the host with the currently supported tracing
backend under tracing generic infrastructure.

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Usage for UART Tracing Backend:

Build a UART-tracing image with:

    cmake -DBOARD=mps2_an521 -DCONF_FILE=prj_uart.conf ..

or:

    cmake -DBOARD=mps2_an521 -DCONF_FILE=prj_uart_ctf.conf ..

After the application has run for a while, check the trace output file.

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Usage for USB Tracing Backend

Build a USB-tracing image with:

    cmake -DBOARD=sam_e70_xplained -DCONF_FILE=prj_usb.conf ..

or:

    cmake -DBOARD=sam_e70_xplained -DCONF_FILE=prj_usb_ctf.conf ..

After the serial console has stable output like this:

    threadA: Hello World!
    threadB: Hello World!
    threadA: Hello World!
    threadB: Hello World!

connect the board's USB port to the host device and
run the trace_capture_usb.py script on the host:

    sudo python3 trace_capture_usb.py -v 0x2FE9 -p 0x100 -o channel0_0

The VID and PID of USB device can be configured, just adjusting it accordingly.

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Usage for POSIX Tracing Backend

Build a POSIX-tracing image with:

    cmake -DBOARD=native_posix -DCONF_FILE=prj_native_posix.conf ..

or:

    cmake -DBOARD=native_posix -DCONF_FILE=prj_native_posix_ctf.conf ..

After the application has run for a while, check the trace output file.