diff options
| author | Peter Zijlstra <peterz@infradead.org> | 2023-12-15 10:12:20 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2023-12-16 01:25:55 +0100 |
| commit | 2cd3e3772e41377f32d6eea643e0590774e9187c (patch) | |
| tree | 6731bd8786a091dbf2e2447952df2b5d908efec6 /kernel/bpf/helpers.c | |
| parent | x86/cfi,bpf: Fix bpf_callback_t CFI (diff) | |
| download | linux-2cd3e3772e41377f32d6eea643e0590774e9187c.tar.xz linux-2cd3e3772e41377f32d6eea643e0590774e9187c.zip | |
x86/cfi,bpf: Fix bpf_struct_ops CFI
BPF struct_ops uses __arch_prepare_bpf_trampoline() to write
trampolines for indirect function calls. These tramplines much have
matching CFI.
In order to obtain the correct CFI hash for the various methods, add a
matching structure that contains stub functions, the compiler will
generate correct CFI which we can pilfer for the trampolines.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/r/20231215092707.566977112@infradead.org
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Diffstat (limited to 'kernel/bpf/helpers.c')
0 files changed, 0 insertions, 0 deletions