arm/net/bpf_jit_32.c

183 #define src_lo	src[1]
770 	 *	adds dst_lo, dst_lo, src_lo
773 	 *	add dst_lo, dst_lo, src_lo
787 	 *	subs dst_lo, dst_lo, src_lo
790 	 *	sub dst_lo, dst_lo, src_lo
862 		rs = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);
887 		emit_a32_mov_r(dst_lo, src_lo, ctx);
894 		emit_a32_mov_r(dst_lo, src_lo, ctx);
896 	} else if (is_stacked(src_lo) && is_stacked(dst_lo)) {
899 		emit(ARM_LDRD_I(tmp[1], ARM_FP, EBPF_SCRATCH_TO_ARM_FP(src_lo)), ctx);
901 	} else if (is_stacked(src_lo)) {
902 		emit(ARM_LDRD_I(dst[1], ARM_FP, EBPF_SCRATCH_TO_ARM_FP(src_lo)), ctx);
922 	rs = arm_bpf_get_reg32(src_lo, rd, ctx);
943 	 * In this case src_lo was loaded into rd(tmp[1]) but rd was not sign extended as off==32.
947 	if (dst_lo != src_lo || off != 32)
1016 	rt = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);
1040 	rt = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);
1065 	rt = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);
1243 		emit(ARM_STRB_I(src_lo, rd, off), ctx);
1247 		emit(ARM_STRH_I(src_lo, rd, off), ctx);
1251 		emit(ARM_STR_I(src_lo, rd, off), ctx);
1255 		emit(ARM_STR_I(src_lo, rd, off), ctx);
1698 			rt = arm_bpf_get_reg32(src_lo, tmp2[0], ctx);
1705 			rt = src_lo;
1868 		rn = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);
1942 		rn = arm_bpf_get_reg32(src_lo, tmp2[1], ctx);