Hello Sean,
I agree -- we have to understand this problem better. That's why I proposed
it as "first workaround". The problem only occurs on PPC64 and only for the
Linux 2.6.16 build process -- I was told that for SLES 9 (Linux 2.6.5) it
works.
Following you will find the Linux 2.6.16 compile options. I will do more
investigation why the .toc is not generated:
gcc -m64
-Wp,-MD,/home/schickhj/ibt-HEAD/linstack/svnehca/linux-2.6.16/drivers/infiniband/core/.index.o.d
-nostdinc
-isystem /usr/lib/gcc-lib/powerpc-suse-linux/3.3.3/include
-D__KERNEL__
-Iinclude
-include include/linux/autoconf.h
-Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing
-fno-common
-ffreestanding -O2
-fomit-frame-pointer
-msoft-float
-pipe
-mminimal-toc
-mtraceback=none
-mcall-aixdesc
-mtune=power4
-mno-altivec
-funit-at-a-time
-mstring
-Wa,
-maltivec
-Idrivers/infiniband/include -Idrivers/infiniband/ulp/ipoib
-DMODULE
-D"KBUILD_STR(s)=#s"
-D"KBUILD_BASENAME=KBUILD_STR(index)"
-D"KBUILD_MODNAME=KBUILD_STR(findex)" -c -o
/home/schickhj/ibt-HEAD/linstack/svnehca/linux-2.6.16/drivers/infiniband/core
/.tmp_index.o
/home/schickhj/ibt-HEAD/linstack/svnehca/linux-2.6.16/drivers/infiniband/core/index.c
TEMP (END)
Sean Hefty wrote:
Heiko J Schick wrote:
it seems that the "indexing service" module (index.c) doesn't call any
external functions. In that case, the .toc will not be generated on PPC64
and the file linux/arch/powerpc/kernel/module_64.c will not load the
module,
because of a missing .toc entry in the ELF section. You can see it in the
following output:
In general, I don't have a problem adding a printk statement to the
code, but I'd like to understand the problem better.
Is this problem limited to PPC64? Does the index code have some other
issue with it? It makes calls to kzalloc, memcmp, kfree, and memset.
Do those calls not work for this case?
- Sean
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