Description

I'm a habitual user of make -j. It looks like the build system has developed a very reliable race condition where a make -j flash will always flash the previous binary on esp*.

Steps to reproduce the issue

• In examples/hello-world run make BOARD=esp32-wroom-32 -j flash term.
• change the text in main.c, better yet print it in a while(1) loop
• run make BOARD=esp32-wroom-32 -j flash term again

Expected results

• the new text is printed

Actual results

• the old text is printed.
• run make BOARD=esp32-wroom-32 -j flash term again
• the new text is printed.

Workaround

• run make BOARD=esp32-wroom-32 -j && make BOARD=esp32-wroom-32 flash term

Versions

xtensa-esp32-elf-gcc (crosstool-NG crosstool-ng-1.22.0-80-g6c4433a5) 5.2.0
GNU Make 4.2.1