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libbpf: Compile libbpf under -O2 level by default and catch extra warnings

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For some reason compiler doesn't complain about uninitialized variable, fixed
in previous patch, if libbpf is compiled without -O2 optimization level. So do
compile it with -O2 and never let similar issue slip by again. -Wall is added
unconditionally, so no need to specify it again.

Signed-off-by: Andrii Nakryiko <andriin@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20200929220604.833631-2-andriin@fb.com
This commit is contained in:
Andrii Nakryiko 2020-09-29 15:06:03 -07:00 committed by Alexei Starovoitov
parent 3343391345
commit 0a62291d69
1 changed files with 1 additions and 1 deletions
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2
tools/lib/bpf/Makefile
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@ -98,7 +98,7 @@ PC_FILE = libbpf.pc
ifdef EXTRA_CFLAGS
CFLAGS := $(EXTRA_CFLAGS)
else
CFLAGS := -g -Wall
CFLAGS := -g -O2
endif
# Append required CFLAGS