Re: [PATCH] perf probe: fix kretprobe issue caused by GCC bug

g-built-li...@googlegroups.com > > Subject: Re: [PATCH] perf probe: fix kretprobe issue caused by GCC bug > > > > Hi Jianlin, > > > > On Fri, 5 Feb 2021 17:35:58 +0800 > > Jianlin Lv wrote: > > > > > Perf failed to add kretprobe event with debuginf

RE: [PATCH] perf probe: fix kretprobe issue caused by GCC bug

echancel...@gmail.com; > ndesaulni...@google.com; f...@redhat.com; irog...@google.com; > suman...@linux.ibm.com; adrian.hun...@intel.com; linux- > ker...@vger.kernel.org; clang-built-li...@googlegroups.com > Subject: Re: [PATCH] perf probe: fix kretprobe issue caused by GCC bug > >

Re: [PATCH] perf probe: fix kretprobe issue caused by GCC bug

Hi Jianlin, On Fri, 5 Feb 2021 17:35:58 +0800 Jianlin Lv wrote: > Perf failed to add kretprobe event with debuginfo of vmlinux which is > compiled by gcc with -fpatchable-function-entry option enabled. > The same issue with kernel module. > > Issue: > > # perf probe -v 'kernel_clone%return

[PATCH] perf probe: fix kretprobe issue caused by GCC bug

Perf failed to add kretprobe event with debuginfo of vmlinux which is compiled by gcc with -fpatchable-function-entry option enabled. The same issue with kernel module. Issue: # perf probe -v 'kernel_clone%return $retval' .. Writing event: r:probe/kernel_clone__return _text+599624 $ret