You're not going to find what other systems know as libc on zOS. at least
not as a supported package.
zOS uses LE (Language Environment
http://www-03.ibm.com/systems/z/os/zos/features/lang_environment/) to
handle the same thing
On zOS we support not just c/c++ and java but we have cobol, pl1, fortran
and even our assembler is supported in our langauge enviroment (that's not
saying others don't but we may have all running in a single lpar and often
do)
While some have ported libc to zOS it is not an offciatlly supported
package by anyone it seems so it's use is on a 'you use it, you support
it' basis
a nm if libc.a shows
CARROS1:/usr/lib: >nm libc.a
__lib__.o:
0 D @@DOPLNK
0 U @@XINIT@
0 D @STATIC
0 U CEESG003
0 U CEESTART
0 T __lib__very_unlikely_to_be_referenced_external_function
0 U printf
0 t private
the CEE references are I beleive stubs into LE, CEE is the C Language
Enviroment.
If you want some of the night time reading you can look at the C docs for
zOS
http://www-03.ibm.com/systems/z/os/zos/library/bkserv/v2r1pdf/#CBC
Sandra
From: Karl Williamson <[email protected]>
To: "[email protected]" <[email protected]>, Perl5 Porters
<[email protected]>, Jarkko Hietaniemi <[email protected]>, John Goodyear
<[email protected]>
Date: 10/06/2015 08:45 PM
Subject: z/OS and libc
I'm working on continuing to port perl5 to z/OS. One test that is
failing is beyond my knowledge level. The Dynaloader module has a
function dl_findfile() which looks for libraries in the path. It is
expecting to find libc at least, but is finding nothing.
This test does not work on several platforms, even some Unix-like ones,
and my guess is it doesn't work on z/OS either. But I am hoping someone
can give me more information.
One of the comments in the perl source says:
# On OS/390, libc.a doesn't really hold anything at all,
And that makes me think that looking for it (and perhaps any Unix-y
library) is futile.
