Commit c59eed11 authored Sep 24, 2012 by Heiko Carstens Committed by Martin Schwidefsky Sep 26, 2012

s390/bpf,jit: add support for BPF_S_ANC_ALU_XOR_X instruction



Add support for new BPF_S_ANC_ALU_XOR_X instruction which got added
with ffe06c17 "filter: add XOR operation".

s390 version of 4bfaddf1 "x86 bpf_jit: support BPF_S_ANC_ALU_XOR_X instruction".

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

parent 02291257

arch/s390/net/bpf_jit_comp.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -367,6 +367,11 @@ static int bpf_jit_insn(struct bpf_jit jit, struct sock_filter filter,
		/* o %r5,<d(K)>(%r13) */
		EMIT4_DISP(0x5650d000, EMIT_CONST(K));
		break;
		case BPF_S_ANC_ALU_XOR_X: /* A ^= X; */
		jit->seen \|= SEEN_XREG;
		/* xr %r5,%r12 */
		EMIT2(0x175c);
		break;
		case BPF_S_ALU_LSH_X: /* A <<= X; */
		jit->seen \|= SEEN_XREG;
		/* sll %r5,0(%r12) */

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