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| author | Yonghong Song <yhs@fb.com> | 2021-02-26 21:49:30 +0100 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-02-26 22:23:52 +0100 |
| commit | 53eddb5e04ac5c53a4ccef9f1f900562a5a75246 (patch) | |
| tree | ee1704c335102fd4f7c1905819f93c313938ce7d /tools/bpf | |
| parent | libbpf: Move function is_ldimm64() earlier in libbpf.c (diff) | |
| download | linux-53eddb5e04ac5c53a4ccef9f1f900562a5a75246.tar.xz linux-53eddb5e04ac5c53a4ccef9f1f900562a5a75246.zip | |
libbpf: Support subprog address relocation
A new relocation RELO_SUBPROG_ADDR is added to capture
subprog addresses loaded with ld_imm64 insns. Such ld_imm64
insns are marked with BPF_PSEUDO_FUNC and will be passed to
kernel. For bpf_for_each_map_elem() case, kernel will
check that the to-be-used subprog address must be a static
function and replace it with proper actual jited func address.
Signed-off-by: Yonghong Song <yhs@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20210226204930.3885367-1-yhs@fb.com
Diffstat (limited to 'tools/bpf')
0 files changed, 0 insertions, 0 deletions