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SubjectRe: [PATCH 0/8] perf tools: kaslr fixes
On Fri, Jan 24, 2014 at 05:10:10PM +0200, Adrian Hunter wrote:
> Hi
>
> Here are some patches that improve perf tools
> handling of relocation.
>
> This has become an issue as mentioned in this
> thread:
>
> http://marc.info/?l=linux-kernel&m=139030004314756
>
>
> It looks like the changes I made to vmlinux and
> module mapping to allow object code to be read
> broke the symbol annotation for relocated kernels.
> The first patch fixes that.
>
> There were some other issues though:
> - ref_reloc_sym was not always set up
> - mustn't use kcore if the kernel has moved
> - kallsyms is not unique for a given
> buildid
>
> These things need more testing but I thought it was
> worth getting comments now.
>
>
> Adrian Hunter (8):
> perf tools: Fix symbol annotation for relocated kernel
> perf tools: Add kallsyms__get_function_start()
> perf tools: Add machine__get_kallsyms_filename()
> perf tools: Set up ref_reloc_sym in machine__create_kernel_maps()
> perf report: Get ref_reloc_sym from kernel map
> perf tools: Prevent the use of kcore if the kernel has moved
> perf tools: test does not need to set up ref_reloc_sym
> perf tools: Adjust kallsyms for relocated kernel

cannot say much for the code changes (look ok ;-) ), but
it fixed the issue for me

Tested-by: Jiri Olsa <jolsa@redhat.com>

jirka


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