From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1033767AbdEWUqN (ORCPT ); Tue, 23 May 2017 16:46:13 -0400 Received: from vps0.lunn.ch ([178.209.37.122]:42105 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1031204AbdEWUqK (ORCPT ); Tue, 23 May 2017 16:46:10 -0400 Date: Tue, 23 May 2017 22:46:08 +0200 From: Andrew Lunn To: Shubham Bansal Cc: linux@armlinux.org.uk, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH] RFC: arm: eBPF JIT compiler Message-ID: <20170523204608.GG24807@lunn.ch> References: <1495564433-9750-1-git-send-email-illusionist.neo@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1495564433-9750-1-git-send-email-illusionist.neo@gmail.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 24, 2017 at 12:03:53AM +0530, Shubham Bansal wrote: > The JIT compiler emits ARM 32 bit instructions. Currently, It supports > eBPF only. Classic BPF is supported because of the conversion by BPF > core. make mvebu_v5_defconfig make -s -j 16 arch/arm/net/bpf_jit_32.c: In function emit_rev16: arch/arm/net/bpf_jit_32.c:1019:7: error: implicit declaration of function ARM_MOV_S [-Werror=implicit-function-declaration] emit(ARM_MOV_S(tmp2[0], rn, SRTYPE_LSR, 8), ctx); ^~~~~~~~~ arch/arm/net/bpf_jit_32.c: In function emit_rev32: arch/arm/net/bpf_jit_32.c:1037:36: error: macro "ARM_MOV_I" passed 3 arguments, but takes just 2 emit(ARM_MOV_I(tmp2[1], rn, 0xff00), ctx); ^ arch/arm/net/bpf_jit_32.c:1037:7: error: ARM_MOV_I undeclared (first use in this function) emit(ARM_MOV_I(tmp2[1], rn, 0xff00), ctx); ^~~~~~~~~ arch/arm/net/bpf_jit_32.c:1037:7: note: each undeclared identifier is reported only once for each function it appears in arch/arm/net/bpf_jit_32.c:1039:41: error: macro "ARM_MOV_I" passed 3 arguments, but takes just 2 emit(ARM_MOV_I(tmp2[0], tmp2[0], 0xff00), ctx); ^ arch/arm/net/bpf_jit_32.c: In function build_insn: arch/arm/net/bpf_jit_32.c:1393:30: error: macro "ARM_AND_R" requires 3 arguments, but only 2 given emit(ARM_AND_R(rt, tmp2[1]), ctx); ^ arch/arm/net/bpf_jit_32.c:1393:9: error: ARM_AND_R undeclared (first use in this function) emit(ARM_AND_R(rt, tmp2[1]), ctx); Andrew