Re: updated libunwind patch for v2.6 kernel

Bob Picco
2005-06-15T16:55:50Z

David Mosberger wrote: [Fri Jun 10 2005, 01:31:34AM EDT]
> An updated version of the libunwind patch for the 2.6-kernel is now
> available at:
>
> ftp://ftp.hpl.hp.com/pub/linux-ia64/unwind-2.6-050609.diff.gz
>
> The only change is that the libunwind API has been exported to
> modules. The problem I reported earlier with strace'ing an x86 task
> apparently had nothing to do with the libunwind changes as it went
> away before I even had a chance to investigate.
>
> This patch passes all my testing so far. The only thing that I
> haven't tested (at all) is the oprofile call-stack tracing. I'd be
> interested to hear if/how that works. (I did drop the old compiler
> support there --- I hope nobody uses such old compilers anymore and
> the code was just gross; but if we have to, we can resurrect it).
>
> Tony, I know you're in the middle of making the test-2.6 tree work
> better for you. For now, the patch above is relative to Linus 2.6
> tree, but if you have no objections, I'd like to feed it into your
> test-2.6 as soon as possible (just let me know when you're ready and I
> will respin the patch relative to test-2.6).
>
> Thanks,
>
> --david
> -
Hi David,

I have build problems after applying this patch against
rsync://rsync.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6.git.
I've also have kgdb patches applied but don't believe they are the
offending issue.

Appended is the relevant part of the kernel make output.

thanks,

bob

ia64-linux-gcc -Wp,-MD,arch/ia64/unwind/.init_local.o.d -nostdinc -isystem /usr/local/lib/gcc-lib/ia64-linux/3.3/include -D__KERNEL__ -Iinclude -DHAVE_BUGGY_SEGREL -DHAVE_ATOMIC_H -Wall -Wstrict-prototypes -Wno-trigraphs -fno-strict-aliasing -fno-common -ffreestanding -O2 -fomit-frame-pointer -g -pipe -ffixed-r13 -mfixed-rangeñ2-f15,f32-f127 -falign-functions2 -frename-registers -fno-optimize-sibling-calls -mconstant-gp -DKBUILD_BASENAME=init_local -DKBUILD_MODNAME=init_local -c -o arch/ia64/unwind/init_local.o arch/ia64/unwind/init_local.c
In file included from arch/ia64/unwind/init.h:26,
from arch/ia64/unwind/init_local.c:26:
arch/ia64/unwind/unwind_i.h:33:25: libunwind_i.h: No such file or directory
In file included from arch/ia64/unwind/unwind_i.h:34,
from arch/ia64/unwind/init.h:26,
from arch/ia64/unwind/init_local.c:26:
arch/ia64/unwind/rse.h:13:23: libunwind.h: No such file or directory
In file included from arch/ia64/unwind/init.h:26,
from arch/ia64/unwind/init_local.c:26:
arch/ia64/unwind/unwind_i.h:52: error: syntax error before "void"
arch/ia64/unwind/unwind_i.h: In function `inlined_sw_addr':
arch/ia64/unwind/unwind_i.h:55: error: `unw_word_t' undeclared (first use in this function)
[snip]