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| author | Daniel T. Lee <danieltimlee@gmail.com> | 2023-08-18 18:01:11 +0900 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-08-21 15:39:09 -0700 |
| commit | 34f6e38f58db9a94718c273edc9ca3fc8b4dba5f (patch) | |
| tree | 83cc6eb25e53bda2a6fd77de3c662537b5ae7b8c /samples | |
| parent | 5bebd3e3a37dc00c6dbbcd0eb5cebd58e3f18f64 (diff) | |
| download | lwn-34f6e38f58db9a94718c273edc9ca3fc8b4dba5f.tar.gz lwn-34f6e38f58db9a94718c273edc9ca3fc8b4dba5f.zip | |
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 <danieltimlee@gmail.com>
Link: https://lore.kernel.org/r/20230818090119.477441-2-danieltimlee@gmail.com
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'samples')
| -rw-r--r-- | samples/bpf/Makefile | 2 |
1 files changed, 1 insertions, 1 deletions
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) | \ |