Next: s390 Characters, Up: S/390-Dependent
The following table lists all available s390 specific options:
-m31 | -m64
These options are only available with the ELF object file format, and require that the necessary BFD support has been included (on a 31-bit platform you must add –enable-64-bit-bfd on the call to the configure script to enable 64-bit usage and use s390x as target platform).
-mesa | -mzarch
The 64-bit instructions are only available with the z/Architecture mode. The combination of `-m64' and `-mesa' results in a warning message.
-march=
CPUg5
,
g6
,
z900
,
z990
,
z9-109
,
z9-ec
,
z10
and
z196
.
Assembling an instruction that is not supported on the target processor
results in an error message. Do not specify g5
or g6
with `-mzarch'.
-mregnames
-mno-regnames
-mwarn-areg-zero