Yonghong Song 462c124c59 bpf: fix a libbpf loader issue ... Commit 2993e0515b ("tools/bpf: add support to read .BTF.ext sections") added support to read .BTF.ext sections from an object file, create and pass prog_btf_fd and func_info to the kernel. The program btf_fd (prog->btf_fd) is initialized to be -1 to please zclose so we do not need special handling dur prog close. Passing -1 to the kernel, however, will cause loading error. Passing btf_fd 0 to the kernel if prog->btf_fd is invalid fixed the problem. Fixes: 2993e0515b ("tools/bpf: add support to read .BTF.ext sections") Reported-by: Andrey Ignatov <rdna@fb.com> Reported-by: Emre Cantimur <haydum@fb.com> Tested-by: Andrey Ignatov <rdna@fb.com> Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Martin KaFai Lau <kafai@fb.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-11-21 22:22:17 +01:00
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api	perf tools: Fix tracing_path_mount proper path	2018-10-16 12:27:46 -03:00
bpf	bpf: fix a libbpf loader issue	2018-11-21 22:22:17 +01:00
lockdep	tools lib traceevent, tools lib lockdep: Rename 'enum pevent_errno' to 'enum tep_errno'	2018-08-13 15:23:07 -03:00
subcmd	tools lib subcmd: Introduce OPTION_ULONG	2018-10-19 11:56:58 -03:00
symbol	tools lib symbols: Introduce kallsyms__is_function()	2018-04-26 13:47:14 -03:00
traceevent	tools lib traceevent, perf tools: Move struct tep_handler definition in a local header file	2018-10-08 15:05:37 -03:00
bitmap.c	tools lib: Add bitmap_and function	2016-08-02 16:33:27 -03:00
find_bit.c	lib: optimize cpumask_next_and()	2018-02-06 18:32:44 -08:00
hweight.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
rbtree.c	tools: Copy lib/rbtree.c to tools/lib/	2015-07-05 22:48:21 -03:00
str_error_r.c	objtool, perf: Fix GCC 8 -Wrestrict error	2018-03-19 13:51:54 -03:00
string.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00
vsprintf.c	License cleanup: add SPDX GPL-2.0 license identifier to files with no license	2017-11-02 11:10:55 +01:00