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| author | Nathan Chancellor <nathan@kernel.org> | 2022-07-13 10:35:03 -0700 |
|---|---|---|
| committer | Daniel Borkmann <daniel@iogearbox.net> | 2022-07-14 16:57:26 +0200 |
| commit | 33f32e5072b6cc84d1b130a3ad485849bcec907a (patch) | |
| tree | c2fbbeba0620fde9c734e3f7d479ab102ac506c3 /tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c | |
| parent | 94bf6aad5dbed1c93618035ec31b37927538c276 (diff) | |
bpf, arm64: Mark dummy_tramp as global
When building with clang + CONFIG_CFI_CLANG=y, the following error
occurs at link time:
ld.lld: error: undefined symbol: dummy_tramp
dummy_tramp is declared globally in C but its definition in inline
assembly does not use .global, which prevents clang from properly
resolving the references to it when creating the CFI jump tables.
Mark dummy_tramp as global so that the reference can be properly
resolved.
Fixes: b2ad54e1533e ("bpf, arm64: Implement bpf_arch_text_poke() for arm64")
Suggested-by: Sami Tolvanen <samitolvanen@google.com>
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Stanislav Fomichev <sdf@google.com>
Link: https://github.com/ClangBuiltLinux/linux/issues/1661
Link: https://lore.kernel.org/bpf/20220713173503.3889486-1-nathan@kernel.org
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/kprobe_multi_test.c')
0 files changed, 0 insertions, 0 deletions