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Re: arm64 kprobes/systemtap support progress
- From: David Smith <dsmith at redhat dot com>
- To: William Cohen <wcohen at redhat dot com>, systemtap at sourceware dot org
- Cc: dave dot long at linaro dot org
- Date: Thu, 20 Nov 2014 16:56:46 -0600
- Subject: Re: arm64 kprobes/systemtap support progress
- Authentication-results: sourceware.org; auth=none
- References: <54569BF6 dot 7070909 at redhat dot com> <546E136C dot 7080005 at redhat dot com>
On 11/20/2014 10:14 AM, William Cohen wrote:
> I did a quick look over of the current results and categorized most of
> them below.
... stuff deleted ...
> Uprobes support not available:
>
> FAIL: bad-code
The above doesn't need uprobes, but it does to a user backtrace. (Or
does a user backtrace require uprobes?)
> FAIL: callee (simple - probing .callee(foo))
> FAIL: callee (multicalls - probing main .callees)
> FAIL: callee (inlined - probing main .callees)
> FAIL: callee (extern - probing main .callees)
> FAIL: callee (reloc - probing shlib foo .callees)
> FAIL: pr16719 (user - can't start stap)
> FAIL: sdt_misc wildcard (0) V1_uprobe
> FAIL: sdt_misc wildcard (0) V2_uprobe
> FAIL: sdt_misc wildcard (0) V3_uprobe
> FAIL: stmt_inlines (probing error, expected 4, got 0)
> FAIL: stmt_rel (bio_init sanity check)
> FAIL: ./systemtap.examples/general/py2example build
> FAIL: ./systemtap.examples/memory/last_100_frees build
I fixed all the above by adding 'uprobes_p' checks to the test cases.
> FAIL: 64_BIT_UTRACE_SYSCALL_ARGS shutdown (eof)
The above one isn't a uprobes problem. That test only uses utrace, not
uprobes (it passes on ia64 for instance, which has utrace but not uprobes).
> plt support not impletement:
>
> FAIL: listing_mode (untested probe type: process(number).plt)
> FAIL: listing_mode (untested probe type: process(number).plt.return)
> FAIL: listing_mode (untested probe type: process(number).plt(string))
> FAIL: listing_mode (untested probe type: process(number).plt(string).return)
I've fixed these, you should get KFAILs now.
--
David Smith
dsmith@redhat.com
Red Hat
http://www.redhat.com
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