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Re: missing functions in newlib


Joel Sherrill wrote:
J. Johnston wrote:

chris wrote:

Hello!

I was suprised to not find in the FAQ "XXX is missing from newlib", so I
shall have to ask it here.


There are lots of things that are "not" in newlib. Adding all of them would
be a thankless exercise and make for a very large FAQ. The
library is essentially ANSI C90 plus a large variety of extensions.


Also when not in a bare embedded system, newlib is usually used with
an OS environment like Cygwin or RTEMS that has additional libraries
and capabilities.  For example, RTEMS has all of the pthread, message
queue, semaphore, and basic systems calls in its own libraries.

The RTEMS implimentation is nice. I'm sure we'd always welcome a port of the parts of your wonderful advanced timers/threads implimentation we are missing in Cygwin ;-).


Actually, back to the original subject, I have ported the error-related functions (found in err.h) from FreeBSD. I also did getprogname/setprogname, which is also frequently found in BSD software (though it doesn't use crt0 to "set the progname", so you will always have to do it with setprogname()). I did so mainly because it was getting annoying having to convert all the error checking code in the other, more complex, functions I've been working on. I'll post it later on once things have settled a bit WRT the impending Cygwin release.

Cheers,
Nicholas



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