[Bug dyninst/15136] stapdyn doesn't fill registers on 32-bit x86
cosmin.chenaru at gmail dot com
sourceware-bugzilla@sourceware.org
Fri Apr 24 16:58:37 GMT 2020
https://sourceware.org/bugzilla/show_bug.cgi?id=15136
Cosmin Chenaru <cosmin.chenaru at gmail dot com> changed:
What |Removed |Added
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CC| |cosmin.chenaru at gmail dot com
--- Comment #1 from Cosmin Chenaru <cosmin.chenaru at gmail dot com> ---
Hi. I realize I am 7 years late, but only now I had to instrument a 32-bit
application using SystemTap and Dyninst. I took a look in the latest code for
Dyninst, inside EmitterIA32::emitCall(), and to my little understanding I see
that there is still no support in passing the registers of the probe in order
for SystemTap to get them through enter_dyninst_uprobe_regs().
So can you please tell me, why can't Dyninst obtain the registers during
runtime on x86, and on x64 there is no such limitation?
Thank you.
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