* [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers @ 2012-09-12 21:21 jistone at redhat dot com 2012-10-11 17:20 ` [Bug dyninst/14573] " jistone at redhat dot com ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: jistone at redhat dot com @ 2012-09-12 21:21 UTC (permalink / raw) To: systemtap http://sourceware.org/bugzilla/show_bug.cgi?id=14573 Bug #: 14573 Summary: Pass pt_regs to dyninst probe handlers Product: systemtap Version: unspecified Status: NEW Severity: normal Priority: P2 Component: dyninst AssignedTo: systemtap@sourceware.org ReportedBy: jistone@redhat.com Classification: Unclassified In order to examine much process state with stapdyn, we're going to need registers. We should pass a pt_regs* (/usr/include/asm/ptrace.h) as a parameter to the probe handler. I believe this can be allocated and prepared via BPatch_register code snippets. We will probably need to hardcode architecture-specific support for the register layouts, but I think that's ok as these are generally unchanging. Not all registers will be available. Right now dyninst only exposes the general purpose registers, and none of the special registers. We do need access to the frame and stack pointers, but that should come soon - see: https://lists.cs.wisc.edu/archive/dyninst-api/2012/msg00093.shtml -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com @ 2012-10-11 17:20 ` jistone at redhat dot com 2013-02-11 21:11 ` jistone at redhat dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jistone at redhat dot com @ 2012-10-11 17:20 UTC (permalink / raw) To: systemtap http://sourceware.org/bugzilla/show_bug.cgi?id=14573 --- Comment #1 from Josh Stone <jistone at redhat dot com> 2012-10-11 17:20:22 UTC --- Commit dd94003 started this by passing individual registers to a separate entry point, which then packs those up into a pt_regs. It would still be nicer to find a way to build pt_regs more directly though. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com 2012-10-11 17:20 ` [Bug dyninst/14573] " jistone at redhat dot com @ 2013-02-11 21:11 ` jistone at redhat dot com 2013-06-12 2:24 ` jistone at redhat dot com ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jistone at redhat dot com @ 2013-02-11 21:11 UTC (permalink / raw) To: systemtap http://sourceware.org/bugzilla/show_bug.cgi?id=14573 Josh Stone <jistone at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |15136 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com 2012-10-11 17:20 ` [Bug dyninst/14573] " jistone at redhat dot com 2013-02-11 21:11 ` jistone at redhat dot com @ 2013-06-12 2:24 ` jistone at redhat dot com 2013-06-12 21:10 ` jistone at redhat dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jistone at redhat dot com @ 2013-06-12 2:24 UTC (permalink / raw) To: systemtap http://sourceware.org/bugzilla/show_bug.cgi?id=14573 --- Comment #2 from Josh Stone <jistone at redhat dot com> --- Commit 09bf82fd adds basic powerpc support, but it's limited to only 6 registers (including IP) due to a limitation noted in Dyninst's EmitterPOWER::emitCall(). -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com ` (2 preceding siblings ...) 2013-06-12 2:24 ` jistone at redhat dot com @ 2013-06-12 21:10 ` jistone at redhat dot com 2020-06-05 13:47 ` scox at redhat dot com 2020-06-16 20:34 ` scox at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: jistone at redhat dot com @ 2013-06-12 21:10 UTC (permalink / raw) To: systemtap http://sourceware.org/bugzilla/show_bug.cgi?id=14573 Josh Stone <jistone at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Depends on| |15614 -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com ` (3 preceding siblings ...) 2013-06-12 21:10 ` jistone at redhat dot com @ 2020-06-05 13:47 ` scox at redhat dot com 2020-06-16 20:34 ` scox at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: scox at redhat dot com @ 2020-06-05 13:47 UTC (permalink / raw) To: systemtap https://sourceware.org/bugzilla/show_bug.cgi?id=14573 Bug 14573 depends on bug 15614, which changed state. Bug 15614 Summary: stapdyn only partially fills registers on ppc https://sourceware.org/bugzilla/show_bug.cgi?id=15614 What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug dyninst/14573] Pass pt_regs to dyninst probe handlers 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com ` (4 preceding siblings ...) 2020-06-05 13:47 ` scox at redhat dot com @ 2020-06-16 20:34 ` scox at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: scox at redhat dot com @ 2020-06-16 20:34 UTC (permalink / raw) To: systemtap https://sourceware.org/bugzilla/show_bug.cgi?id=14573 Stan Cox <scox at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |DUPLICATE CC| |scox at redhat dot com --- Comment #3 from Stan Cox <scox at redhat dot com> --- Fixed by setting up all the regs using multiple synthesized calls. *** This bug has been marked as a duplicate of bug 24954 *** -- You are receiving this mail because: You are the assignee for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2020-06-16 20:34 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2012-09-12 21:21 [Bug dyninst/14573] New: Pass pt_regs to dyninst probe handlers jistone at redhat dot com 2012-10-11 17:20 ` [Bug dyninst/14573] " jistone at redhat dot com 2013-02-11 21:11 ` jistone at redhat dot com 2013-06-12 2:24 ` jistone at redhat dot com 2013-06-12 21:10 ` jistone at redhat dot com 2020-06-05 13:47 ` scox at redhat dot com 2020-06-16 20:34 ` scox at redhat dot com
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