bk-linuxppc_2_4 mpc8xx compile fix

bk-linuxppc_2_4 mpc8xx compile fix

[Magnus Damm]

Hi all,

I recently tried to compile a fresh bitkeeper linuxppc_2_4 tree for
mpc8xx:

arch/ppc/kernel/kernel.o: In function `SoftwareEmulation':
arch/ppc/kernel/kernel.o(.text+0xa04): undefined reference to
`Soft_emulate_8xx'
arch/ppc/kernel/kernel.o(.text+0xa04): relocation truncated to fit:
R_PPC_REL24 Soft_emulate_8xx
make: *** [vmlinux] Error 1

The relevant .config line:

# CONFIG_MATH_EMULATION is not set

I will probably not get the nobelprize for the fix,
but is works for me... =)

Cheers /

Magnus



diff -urN linux-2.4.1/arch/ppc/kernel/Makefile
linux-2.4.1-cllf_ok/arch/ppc/kern
el/Makefile
--- linux-2.4.1/arch/ppc/kernel/Makefile        Tue Jan 23 00:41:15 2001
+++ linux-2.4.1-cllf_ok/arch/ppc/kernel/Makefile        Wed Feb  7
11:32:08 2001
@@ -56,7 +56,13 @@
 else
 obj-$(CONFIG_PPC)              += hashtable.o
 endif
-obj-$(CONFIG_MATH_EMULATION)   += softemu8xx.o
+
+ifeq ($(CONFIG_8xx),y)
+ifneq ($(CONFIG_MATH_EMULATION),y)
+obj-$(CONFIG_8xx)              += softemu8xx.o
+endif
+endif
+
 obj-$(CONFIG_MBX)              += i8259.o
 obj-$(CONFIG_APUS)             += apus_setup.o
 obj-$(CONFIG_ALL_PPC)          += pmac_pic.o pmac_setup.o pmac_time.o
prom.o \

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Re: bk-linuxppc_2_4 mpc8xx compile fix

[Dan Malek]

Magnus Damm wrote:

> arch/ppc/kernel/kernel.o: In function `SoftwareEmulation':
> arch/ppc/kernel/kernel.o(.text+0xa04): undefined reference to
> `Soft_emulate_8xx'
> arch/ppc/kernel/kernel.o(.text+0xa04): relocation truncated to fit:
> R_PPC_REL24 Soft_emulate_8xx
> make: *** [vmlinux] Error 1
>
> The relevant .config line:
>
> # CONFIG_MATH_EMULATION is not set

The intention here is to remove the old, original, half-assed emulate
a few instructions function.  Either you get floating point emulation
or you don't.  I wrote the original version long ago before there was
floating point emulation, just to make a little forward progress.  It's
time to remove it and I guess the Makefiles, configuration, and real
code files didn't get updated together.

Use whatever works (you won the prize :-), and it will be fixed up
shortly.

Thanks.


	-- Dan

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