Yonghong Song b42699547f tools/bpf: make libbpf _GNU_SOURCE friendly ... During porting libbpf to bcc, I got some warnings like below: ... [ 2%] Building C object src/cc/CMakeFiles/bpf-shared.dir/libbpf/src/libbpf.c.o /home/yhs/work/bcc2/src/cc/libbpf/src/libbpf.c:12:0: warning: "_GNU_SOURCE" redefined [enabled by default] #define _GNU_SOURCE ... [ 3%] Building C object src/cc/CMakeFiles/bpf-shared.dir/libbpf/src/libbpf_errno.c.o /home/yhs/work/bcc2/src/cc/libbpf/src/libbpf_errno.c: In function ‘libbpf_strerror’: /home/yhs/work/bcc2/src/cc/libbpf/src/libbpf_errno.c:45:7: warning: assignment makes integer from pointer without a cast [enabled by default] ret = strerror_r(err, buf, size); ... bcc is built with _GNU_SOURCE defined and this caused the above warning. This patch intends to make libpf _GNU_SOURCE friendly by . define _GNU_SOURCE in libbpf.c unless it is not defined . undefine _GNU_SOURCE as non-gnu version of strerror_r is expected. Signed-off-by: Yonghong Song <yhs@fb.com> Acked-by: Jakub Kicinski <jakub.kicinski@netronome.com> Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>		2018-11-30 02:41:02 +01:00
..
api	perf tools: Fix tracing_path_mount proper path	2018-10-16 12:27:46 -03:00
bpf	tools/bpf: make libbpf _GNU_SOURCE friendly	2018-11-30 02:41:02 +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
find_bit.c	lib: optimize cpumask_next_and()	2018-02-06 18:32:44 -08:00
hweight.c
rbtree.c
str_error_r.c	objtool, perf: Fix GCC 8 -Wrestrict error	2018-03-19 13:51:54 -03:00
string.c
vsprintf.c