Re: [PATCH v2] selftests/ftrace: Use printf for backslash included command

On Mon, 11 May 2020 13:46:35 +0000 David Laight David.Laight@ACULAB.COM wrote:

From: Masami Hiramatsu

...

Sent: 11 May 2020 14:38

Hi Andreas and David,

OK, what about this fix?

No idea what it is trying to do or why. Just a way of avoiding the differences between SYSV and BSD /bin/echo.

IIRC Posix allows both behaviours (and probably others).

Ah, I got it. That's why POSIX said "the results are implementation-defined."

https://pubs.opengroup.org/onlinepubs/009695399/utilities/echo.html

Thank you!