GNU Info

(as.info)ESA/390 Notes

---

Next: ESA/390 Options Up: ESA/390-Dependent

---

Enter node , (file) or (file)node

Notes
-----

   The ESA/390 `as' port is currently intended to be a back-end for the
GNU CC compiler.  It is not HLASM compatible, although it does support
a subset of some of the HLASM directives.  The only supported binary
file format is ELF; none of the usual MVS/VM/OE/USS object file
formats, such as ESD or XSD, are supported.

   When used with the GNU CC compiler, the ESA/390 `as' will produce
correct, fully relocated, functional binaries, and has been used to
compile and execute large projects.  However, many aspects should still
be considered experimental; these include shared library support,
dynamically loadable objects, and any relocation other than the 31-bit
relocation.