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IA32 FP
- To: gdb@sourceware.cygnus.com
- Subject: IA32 FP
- From: jtc@redback.com (J.T. Conklin)
- Date: 12 Jul 1999 10:53:23 -0700
- Reply-To: jtc@redback.com
I haven't jumped in on running thread on IA32 FP until now.
Although most of the IA32 systems in common use today support FP, only
a handful have FP support in GDB. IMO, one of the reasons for this is
that the base header, tm-i386.h, has little support for FP registers
(NUM_FREGS is 0, no REGISTER_CONVERT_TO_{RAW,VIRTUAL} macros, etc.
This may be a good opportunity to address this. At the possible
expense of some of the older targets that really don't have any FP
support, the target headers for more today's popular systems (*BSD,
GNU/Linux, GNU/Hurd, cygwin, embedded, etc.) would be greatly
simplified. Plus any breakage would be quite obvious and easy to
fix when someone attempts to build those configs.
We could try to build cross debuggers for all the IA32 targets, but we
might not be successful. I've encountered problems in the past where
target headers require native headers, etc. and fail to build.
--jtc
--
J.T. Conklin
RedBack Networks