diff options
Diffstat (limited to 'samples/bpf/libbpf.h')
| -rw-r--r-- | samples/bpf/libbpf.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/samples/bpf/libbpf.h b/samples/bpf/libbpf.h index 3705fba..8ab36a0 100644 --- a/samples/bpf/libbpf.h +++ b/samples/bpf/libbpf.h @@ -135,6 +135,16 @@ struct bpf_insn; .off = OFF, \ .imm = 0 }) +/* Atomic memory add, *(uint *)(dst_reg + off16) += src_reg */ + +#define BPF_STX_XADD(SIZE, DST, SRC, OFF) \ + ((struct bpf_insn) { \ + .code = BPF_STX | BPF_SIZE(SIZE) | BPF_XADD, \ + .dst_reg = DST, \ + .src_reg = SRC, \ + .off = OFF, \ + .imm = 0 }) + /* Memory store, *(uint *) (dst_reg + off16) = imm32 */ #define BPF_ST_MEM(SIZE, DST, OFF, IMM) \ |
