On Thu, Jun 27, 2019 at 6:51 PM Josh Poimboeuf <[email protected]> wrote: > > Objtool previously ignored ___bpf_prog_run() because it didn't > understand the jump table. This resulted in the ORC unwinder not being > able to unwind through non-JIT BPF code. > > Now that objtool knows how to read jump tables, remove the whitelist and > annotate the jump table so objtool can recognize it. > > Also add an additional "const" to the jump table definition to clarify > that the text pointers are constant. Otherwise GCC sets the section > writable flag and the assembler spits out warnings. > > Fixes: d15d356887e7 ("perf/x86: Make perf callchains work without > CONFIG_FRAME_POINTER") > Reported-by: Song Liu <[email protected]> > Signed-off-by: Josh Poimboeuf <[email protected]>
I'm traveling atm, but the set looks good. Acked-by: Alexei Starovoitov <[email protected]> If tip maintainers can route it to Linus quickly then please send the whole thing via tip tree. Or we can send these two patches via bpf tree early next week.
