cmpxchg() in recent kernels
Russell King - ARM Linux
linux at arm.linux.org.uk
Sun Oct 24 18:08:46 EDT 2010
On Sun, Oct 24, 2010 at 11:43:38PM +0200, Kristoffer Ericson wrote:
> Im seeing something similiar, using GCC 3.4.5
> ARM HP Jornada 720, 2.6.36
>
> GZIP kernel/config_data.gz
> IKCFG kernel/config_data.h
> CC kernel/configs.o
> LD kernel/built-in.o
> LD drivers/pcmcia/built-in.o
> LD drivers/built-in.o
> LD vmlinux.o
> MODPOST vmlinux.o
> WARNING: modpost: Found 1 section mismatch(es).
> To see full details build your kernel with:
> 'make CONFIG_DEBUG_SECTION_MISMATCH=y'
> GEN .version
> CHK include/generated/compile.h
> UPD include/generated/compile.h
> CC init/version.o
> LD init/built-in.o
> LD .tmp_vmlinux1
> kernel/built-in.o(.text+0x1d038): In function `alloc_pid':
> include/asm-generic/cmpxchg-local.h:42: undefined reference to `wrong_size_cmpxchg'
> make: *** [.tmp_vmlinux1] Error 1
Probably needs to be bisected, but I think in the long run we'll have
to accept that gcc 4 will become the minimum compiler version.
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