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libbpf: add BPF_CALL_REL() macro implementation

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Add BPF_CALL_REL() macro implementation into include/linux/filter.h
header, which is now used by libbpf code for feature detection.

Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
This commit is contained in:
Andrii Nakryiko
2024-01-26 18:12:29 -05:00
committed by Andrii Nakryiko
parent 0f84f3bef6
commit 274d6037f8
1 changed files with 7 additions and 0 deletions
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include/linux/filter.h
+7
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@@ -37,6 +37,13 @@
.off = 0, \
.imm = IMM })
#define BPF_CALL_REL(DST) \
((struct bpf_insn) { \
.dst_reg = 0, \
.src_reg = BPF_PSEUDO_CALL, \
.off = 0, \
.imm = DST })
#define BPF_EXIT_INSN() \
((struct bpf_insn) { \
.code = BPF_JMP | BPF_EXIT, \