On Wed, Feb 27, 2019 at 11:42:15PM +0900, Masami Hiramatsu wrote: > > For perf-probe, we can add some attribute for each argument > which indicate that the variable in user space. But still > we can not decide it automatically by DWARF since __user attribute > is not transrated to DWARF attribute.
clang has partial support for __attribute__((noderef, address_space(1))) We'll work on patches to make it complete and pass __user attribute all the way to debug info. If somebody can work with gcc folks to do the same that would be awesome.
