After I upgrade lib32-libusb-1.0.25-2 and libusb-1.0.25-2, when I run open ocd command , I received some error like these:
❯ openocd -f interface/stlink.cfg -f target/stm32f0x.cfg
Open On-Chip Debugger 0.11.0
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 1000 kHz
[1] 18627 segmentation fault (core dumped) openocd -f interface/stlink.cfg -f target/stm32f0x.cfg
Then I have checked dependence of “aur/openocd” package, it show four packages：
- hidapi
- libftdi-compat
- libudev.so
- libusb-compat
The last one——libusb-compat caught my eye，then I start checking for software update record(by software Pacmac). I have found these has been upgraded:
- libusb (1.0.24-2 → 1.0.25-2)
- lib32-libusb(1.0.24-1 → 1.0.25-2)
I start use downgrader to downgrade libusb and lib32-libusb, like this:
❯ downgrader lib32-libusb
Downgrade package: lib32-libusb
1: lib32-libusb-1.0.25-2 [installed]
2: lib32-libusb-1.0.25-1 (from ALA)
3: lib32-libusb-1.0.24-1 (from ALA)
4: lib32-libusb-1.0.23-2 (from ALA)
5: lib32-libusb-1.0.23-1 (from ALA)
6: lib32-libusb-1.0.22-1 (from ALA)
>> Please enter package number, [q] to quit 3
❯ downgrader libusb
Downgrade package: libusb
1: libusb-1.0.25-2 [installed]
2: libusb-1.0.25-1 (from ALA)
3: libusb-1.0.24-2 (from ALA)
4: libusb-1.0.24-1 (from ALA)
5: libusb-1.0.23-3 (from ALA)
6: libusb-1.0.23-2 (from ALA)
7: libusb-1.0.23-1 (from ALA)
8: libusb-1.0.22-1 (from ALA)
>> Please enter package number, [q] to quit 3
After downgraded libusb and lib32-libusb, openocd work normally again, like this
❯ openocd -f interface/stlink.cfg -f target/stm32f0x.cfg
Open On-Chip Debugger 0.11.0
Licensed under GNU GPL v2
For bug reports, read
http://openocd.org/doc/doxygen/bugs.html
Info : auto-selecting first available session transport "hla_swd". To override use 'transport select <transport>'.
Info : The selected transport took over low-level target control. The results might differ compared to plain JTAG/SWD
Info : Listening on port 6666 for tcl connections
Info : Listening on port 4444 for telnet connections
Info : clock speed 1000 kHz
Info : STLINK V2J36S7 (API v2) VID:PID 0483:3748
Info : Target voltage: 3.201043
Info : stm32f0x.cpu: hardware has 4 breakpoints, 2 watchpoints
Info : starting gdb server for stm32f0x.cpu on 3333
Info : Listening on port 3333 for gdb connections
I don’t know which developers should communicate this problem with, I don’t even know if it’s appropriate to post here. But I can’t seem to think of a more proper way now. So I share the solution here, hoping to help friends who encounter the same problem.