Re: [PATCHv4 bpf-next 3/8] bpf: Add bpf_get_func_ip helper for tracing programs

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



On Thu, Jul 15, 2021 at 06:09:22PM -0700, Alexei Starovoitov wrote:
> On Wed, Jul 14, 2021 at 2:44 AM Jiri Olsa <jolsa@xxxxxxxxxx> wrote:
> >
> > Adding bpf_get_func_ip helper for BPF_PROG_TYPE_TRACING programs,
> > specifically for all trampoline attach types.
> >
> > The trampoline's caller IP address is stored in (ctx - 8) address.
> > so there's no reason to actually call the helper, but rather fixup
> > the call instruction and return [ctx - 8] value directly (suggested
> > by Alexei).
> >
> > [fixed has_get_func_ip wrong return type]
> > Reported-by: kernel test robot <lkp@xxxxxxxxx>
> > Reported-by: Dan Carpenter <dan.carpenter@xxxxxxxxxx>
> 
> I removed these tags, since they don't correspond to any real commit in the git.
> Otherwise all patches would have been full of such things when patch series
> go through iterations. Also fixed a few typos here and there,
> manually rebased and applied.
> Thanks!
> 

thanks,
jirka




[Index of Archives]     [Linux Samsung SoC]     [Linux Rockchip SoC]     [Linux Actions SoC]     [Linux for Synopsys ARC Processors]     [Linux NFS]     [Linux NILFS]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]


  Powered by Linux