> With my comment above, you wouldn't need this, but I'm gonna comment anyway. > > We don't use special GCCs to target specific CPU variants. Hence inside the > kernel, you should check the config symbols, to see if support for 68000 or > 68010 (which isn't supported by the kernel yet) is enabled.
Do you remember some earlier discussion about the m68k Makefile and old GCC versions? In particular, lines like: cpuflags-$(CONFIG_M525x) := $(call cc-option,-mcpu=5253,-m5200) cpuflags-$(CONFIG_M5249) := $(call cc-option,-mcpu=5249,-m5200) cpuflags-$(CONFIG_M520x) := $(call cc-option,-mcpu=5208,-m5200) cpuflags-$(CONFIG_M5206e) := $(call cc-option,-mcpu=5206e,-m5200) cpuflags-$(CONFIG_M5206) := $(call cc-option,-mcpu=5206,-m5200) The problem is that whether MULU.L exists depends on the targeted architecture, and *that* depends on this Makefile trickery, not just CONFIG symbols... Oh, f*** me. I misremembered. That problem exists, but only for DIVU.L. As I said in the comments (which I wrote *after* deciding I needed this approach), all ColdFire have MULU.L. It's DIVU.L that's missing from some early ones. You're absolutely right. MULU.L support can be done perfectly from CONFIG_ options. Improved patch coming in a few minutes. My sincere apologies.
