2.5.1 - error compiling ksyms.c

David Relson (relson@osagesoftware.com)
Tue, 18 Dec 2001 10:47:48 -0500


Greetings!

I can't 2.5.1 for a single processor environment. The compilation of
kernel/ksyms.c fails as follows:

gcc -D__KERNEL__ -I/usr/src/linux-2.5.1/include -Wall -Wstrict-prototypes
-Wno-trigraphs -O2 -fomit-frame-pointer -fno-strict-aliasing -fno-common
-pipe -mpreferred-stack-boundary=2 -march=i686 -DEXPORT_SYMTAB -c ksyms.c
In file included from ksyms.c:24:
/usr/src/linux-2.5.1/include/linux/kernel_stat.h: In function `kstat_irqs':
/usr/src/linux-2.5.1/include/linux/kernel_stat.h:48: `smp_num_cpus'
undeclared (first use in this function)
/usr/src/linux-2.5.1/include/linux/kernel_stat.h:48: (Each undeclared
identifier is reported only once
/usr/src/linux-2.5.1/include/linux/kernel_stat.h:48: for each function it
appears in.)
make[2]: *** [ksyms.o] Error 1

In linux-2.5.1/.config, I have:

# CONFIG_SMP is not set

This causes linux-2.5.1/include/linux/smp.h to define the symbol using:

#define smp_num_cpus 1

However in linux-2.5.1/include/linux/modules/i386_ksyms.ver is:

#define smp_num_cpus _set_ver(smp_num_cpus)

which seems to undefine the symbol.

What the heck is going on here?

David

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