* h8300/h8300.c (h8300_current_function_monitor_function_p):
New function. Added to check monitor functions.
(h8300_option_override): Modified to generate error/warning
messages for invalid combinations of different command line
options.
* h8300/h8300.md: Generate 'rte' for monitor functions. Do not
save EXR on stack for monitor function in case of H8S target
when "-mno-exr" is passed.
* h8300/h8300-protos.h
(h8300_current_function_monitor_function_p): Add prototype.
* doc/invoke.texi: Document H8S options.
From-SVN: r186109
