Em Mon, Mar 12, 2018 at 10:43:09AM +0100, Jiri Olsa escreveu: > Adding bpf_insn__interpret function to run ebpf program > in user space. > > It's 'borrowed' from systemtap code, I still need to figure > the proper credits, that will go to the file header in case > this would ever go in.
What is the license? GPL? > Link: http://lkml.kernel.org/n/tip-qqxsyw6imdisj3dydd6e2...@git.kernel.org > Signed-off-by: Jiri Olsa <jo...@kernel.org> > > +++ b/tools/lib/bpf/Build > @@ -1 +1 @@ > -libbpf-y := libbpf.o bpf.o nlattr.o > +libbpf-y := libbpf.o bpf.o nlattr.o interp.o > diff --git a/tools/lib/bpf/interp.c b/tools/lib/bpf/interp.c > new file mode 100644 > index 000000000000..2ceb6a0836c3 > --- /dev/null > +++ b/tools/lib/bpf/interp.c > @@ -0,0 +1,245 @@ > +#include <uapi/linux/bpf.h> > +#include <stdlib.h> > +#include "interp.h" > + > +u64 bpf_interp__run(struct bpf_interp *interp) > +{ <SNIP> > + > + case BPF_JMP | BPF_EXIT: > + return regs[0]; > + > + default: > + abort(); And this should be converted to returning some error that the users can tell the user using whatever UI (TUI, etc). > + } > + > + regs[i->dst_reg] = dr; > + nowrite: > + i++; > + } > + > + return 0; > +} > -- > 2.13.6
