Daniel Borkmann 3dca21156b bpf, libbpf: simplify and cleanup perf ring buffer walk ... Simplify bpf_perf_event_read_simple() a bit and fix up some minor things along the way: the return code in the header is not of type int but enum bpf_perf_event_ret instead. Once callback indicated to break the loop walking event data, it also needs to be consumed in data_tail since it has been processed already. Moreover, bpf_perf_event_print_t callback should avoid void * as we actually get a pointer to struct perf_event_header and thus applications can make use of container_of() to have type checks. The walk also doesn't have to use modulo op since the ring size is required to be power of two. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Signed-off-by: Alexei Starovoitov <ast@kernel.org>		2018-10-20 23:13:32 -07:00
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bpftool	bpf, libbpf: simplify and cleanup perf ring buffer walk	2018-10-20 23:13:32 -07:00
.gitignore	tools/bpftool: ignore build products	2018-07-26 02:50:26 +02:00
bpf_asm.c	tools: rename tools/net directory to tools/bpf	2017-10-04 21:45:05 -07:00
bpf_dbg.c	bpf: fix uninitialized variable in bpf tools	2018-04-26 22:23:02 +02:00
bpf_exp.l	bpf: fix cbpf parser bug for octal numbers	2018-06-03 07:46:55 -07:00
bpf_exp.y	tools: rename tools/net directory to tools/bpf	2017-10-04 21:45:05 -07:00
bpf_jit_disasm.c	tools/bpf_jit_disasm: silence a static checker warning	2018-01-18 22:15:37 +01:00
Makefile	bpf: fix for lex/yacc build error with gcc-5	2018-04-25 23:27:46 +02:00
Makefile.helpers	tools: bpf: build and install man page for eBPF helpers from bpftool/	2018-07-12 18:55:53 +02:00