Profiling: xtensa-esp-elf-gprof: can't find .text section in X.elf (OCD-881)

[bwhitman]

OpenOCD version

Open On-Chip Debugger v0.12.0-esp32-20230921

Operating System

macOS

Using an IDE ?

no

OpenOCD command line

openocd -f board/esp32s3-builtin.cfg

ESP-IDF version

5.2-beta2

Problem Description

% openocd -f board/esp32s3-builtin.cfg

In separate terminal...

% telnet localhost 4444
profile 10 gmon.out

In third terminal

xtensa-esp32s3-elf-gprof build/X.elf gmon.out

I always get

xtensa-esp-elf-gprof: can't find .text section in X.elf

Debug Logs

No response

Expected behavior

Expected: that the xtensa gprof would understand xtensa elf .text sections.

Screenshots

No response

[erhankur]

Yes because in the elf file, we have .flash.text section instead of .text You can rename the section names. e.g;

cp build/hello_world.elf build/gprof_hello_world.elf
xtensa-esp32s3-elf-objcopy -I elf32-xtensa-le --rename-section .flash.text=.text build/gprof_hello_world.elf

[bwhitman]

That fixed it. Thank you !

[bwhitman]

I wrote a HOWTO that brings all this together as I couldn't find it anywhere else, if someone comes looking for help here:

https://github.com/bwhitman/tulipcc/blob/main/docs/tulip_debug.md

[erhankur]

@bwhitman Thanks for your support. I'll update our troubleshooting page as well.