Song Liu d4b4dd6ce7 libbpf: Print hint when PERF_EVENT_IOC_SET_BPF returns -EPROTO ... The kernel prevents potential unwinder warnings and crashes by blocking BPF program with bpf_get_[stack|stackid] on perf_event without PERF_SAMPLE_CALLCHAIN, or with exclude_callchain_[kernel|user]. Print a hint message in libbpf to help the user debug such issues. Signed-off-by: Song Liu <songliubraving@fb.com> Signed-off-by: Alexei Starovoitov <ast@kernel.org> Link: https://lore.kernel.org/bpf/20200723180648.1429892-4-songliubraving@fb.com		2020-07-25 20:16:35 -07:00
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api	libsymbols kallsyms: Parse using io api	2020-05-05 16:35:32 -03:00
bpf	libbpf: Print hint when PERF_EVENT_IOC_SET_BPF returns -EPROTO	2020-07-25 20:16:35 -07:00
lockdep	.gitignore: add SPDX License Identifier	2020-03-25 11:50:48 +01:00
perf	libperf evlist: Fix a refcount leak	2020-05-05 16:35:29 -03:00
subcmd	libsubcmd: Fix OPT_CALLBACK_SET()	2020-07-17 09:33:06 -03:00
symbol	libsymbols kallsyms: Move hex2u64 out of header	2020-05-05 16:35:32 -03:00
traceevent	tools lib traceevent: Add proper KBUFFER_TYPE_TIME_STAMP handling	2020-07-03 08:45:38 -03:00
argv_split.c	tools lib: Move argv_{split,free} from tools/perf/util/	2019-07-01 22:50:40 -03:00
bitmap.c	tools bitmap: Implement bitmap_equal() operation at bitmap API	2020-01-06 11:46:04 -03:00
ctype.c	tools perf: Move from sane_ctype.h obtained from git to the Linux's original	2019-06-25 21:02:47 -03:00
find_bit.c	treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152	2019-05-30 11:26:32 -07:00
hweight.c
rbtree.c	lib/rbtree: fix coding style of assignments	2020-04-07 10:43:43 -07:00
str_error_r.c	objtool, perf: Fix GCC 8 -Wrestrict error	2018-03-19 13:51:54 -03:00
string.c	tools lib: Fix builds when glibc contains strlcpy()	2020-01-06 11:46:10 -03:00
vsprintf.c	perf script: Pad DSO name for --call-trace	2019-05-28 18:37:44 -03:00
zalloc.c	tools lib: Adopt zalloc()/zfree() from tools/perf	2019-07-09 10:13:26 -03:00