From 34f6e38f58db9a94718c273edc9ca3fc8b4dba5f Mon Sep 17 00:00:00 2001 From: "Daniel T. Lee" Date: Fri, 18 Aug 2023 18:01:11 +0900 Subject: samples/bpf: fix warning with ignored-attributes Currently, compiling the bpf programs will result the warning with the ignored attribute as follows. This commit fixes the warning by adding cf-protection option. In file included from ./arch/x86/include/asm/linkage.h:6: ./arch/x86/include/asm/ibt.h:77:8: warning: 'nocf_check' attribute ignored; use -fcf-protection to enable the attribute [-Wignored-attributes] extern __noendbr u64 ibt_save(bool disable); ^ ./arch/x86/include/asm/ibt.h:32:34: note: expanded from macro '__noendbr' ^ Signed-off-by: Daniel T. Lee Link: https://lore.kernel.org/r/20230818090119.477441-2-danieltimlee@gmail.com Signed-off-by: Alexei Starovoitov --- samples/bpf/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'samples/bpf/Makefile') diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile index 595b98d825ce..b32cb8a62335 100644 --- a/samples/bpf/Makefile +++ b/samples/bpf/Makefile @@ -440,7 +440,7 @@ $(obj)/%.o: $(src)/%.c -Wno-gnu-variable-sized-type-not-at-end \ -Wno-address-of-packed-member -Wno-tautological-compare \ -Wno-unknown-warning-option $(CLANG_ARCH_ARGS) \ - -fno-asynchronous-unwind-tables \ + -fno-asynchronous-unwind-tables -fcf-protection \ -I$(srctree)/samples/bpf/ -include asm_goto_workaround.h \ -O2 -emit-llvm -Xclang -disable-llvm-passes -c $< -o - | \ $(OPT) -O2 -mtriple=bpf-pc-linux | $(LLVM_DIS) | \ -- cgit