summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/bpf/prog_tests/autoload.c
diff options
context:
space:
mode:
authorAlexei Starovoitov <ast@kernel.org>2023-03-17 23:19:18 +0300
committerAndrii Nakryiko <andrii@kernel.org>2023-03-18 01:44:27 +0300
commit5fc13ad59b60708e52932188854d4d5bf2b0e10e (patch)
treeee91e7c2bd0e4a922d7e5a0f98f0886f2c9c8eda /tools/testing/selftests/bpf/prog_tests/autoload.c
parent58aa2afbb1e61fcf35bfcc819952a3c13d9f9203 (diff)
downloadlinux-5fc13ad59b60708e52932188854d4d5bf2b0e10e.tar.xz
libbpf: Fix relocation of kfunc ksym in ld_imm64 insn.
void *p = kfunc; -> generates ld_imm64 insn. kfunc() -> generates bpf_call insn. libbpf patches bpf_call insn correctly while only btf_id part of ld_imm64 is set in the former case. Which means that pointers to kfuncs in modules are not patched correctly and the verifier rejects load of such programs due to btf_id being out of range. Fix libbpf to patch ld_imm64 for kfunc. Signed-off-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: Andrii Nakryiko <andrii@kernel.org> Link: https://lore.kernel.org/bpf/20230317201920.62030-3-alexei.starovoitov@gmail.com
Diffstat (limited to 'tools/testing/selftests/bpf/prog_tests/autoload.c')
0 files changed, 0 insertions, 0 deletions