Andrii Nakryiko 0f0e55d824 libbpf: Improve BTF sanitization handling ... Change sanitization process to preserve original BTF, which might be used by libbpf itself for Kconfig externs, CO-RE relocs, etc, even if kernel is old and doesn't support BTF. To achieve that, if libbpf detects the need for BTF sanitization, it would clone original BTF, sanitize it in-place, attempt to load it into kernel, and if successful, will preserve loaded BTF FD in original `struct btf`, while freeing sanitized local copy. If kernel doesn't support any BTF, original btf and btf_ext will still be preserved to be used later for CO-RE relocation and other BTF-dependent libbpf features, which don't dependon kernel BTF support. Patch takes care to not specify BTF and BTF.ext features when loading BPF programs and/or maps, if it was detected that kernel doesn't support BTF features. Signed-off-by: Andrii Nakryiko <andriin@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Link: https://lore.kernel.org/bpf/20200708015318.3827358-4-andriin@fb.com		2020-07-09 00:44:44 +02:00
..
api	libsymbols kallsyms: Parse using io api	2020-05-05 16:35:32 -03:00
bpf	libbpf: Improve BTF sanitization handling	2020-07-09 00:44:44 +02:00
lockdep
perf	libperf evlist: Fix a refcount leak	2020-05-05 16:35:29 -03:00
subcmd	libsubcmd: Introduce OPT_CALLBACK_SET()	2020-05-05 16:35:29 -03:00
symbol	libsymbols kallsyms: Move hex2u64 out of header	2020-05-05 16:35:32 -03:00
traceevent	tools lib traceevent: Add handler for __builtin_expect()	2020-06-18 10:22:54 -03:00
argv_split.c
bitmap.c
ctype.c
find_bit.c
hweight.c
rbtree.c
str_error_r.c
string.c
vsprintf.c
zalloc.c