From patchwork Thu May 23 15:08:02 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 165039 Delivered-To: patch@linaro.org Received: by 2002:a92:9e1a:0:0:0:0:0 with SMTP id q26csp2330729ili; Thu, 23 May 2019 08:15:48 -0700 (PDT) X-Google-Smtp-Source: APXvYqzS8ayerDfN4Up4nSvVSk4MHScspheeJXzCnHJb/tZwzXFjFLtC5bRN0IT6a89yHi5xVXL4 X-Received: by 2002:a50:bdc6:: with SMTP id z6mr97508286edh.47.1558624548584; Thu, 23 May 2019 08:15:48 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1558624548; cv=none; d=google.com; s=arc-20160816; b=xJ1KJtXi7iozCpgRcWQF2ggVjPCqnJYF2OW4yn0WjBrF7ZWxB0hFXeszA36YO8aMrq 2/fzUU4doVpjG2LWBj555Z0URS4qGx4YHkAOUpQrUDK6Ps9a48m2xyMdAKej8pWFn/1o 03fHCNKT5qaujTGIfwz8LtlltwoNu8H2pIlZWUZeclrtBVy1E8QMydlKH2gydtQ9tQWp iStC/JwkAuykOylXuCRGT6UpIIQ290MrpADBnVtzcaAYLHPjwTREZvltc0n+GEWJkzy9 P4DDahVwaIcmeBISwOyYjtzj/Qxo5tHPBSaXPBcUJd0yekZndD+WpmNu/q07dbpqGwKD Sukw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=sender:errors-to:cc:list-subscribe:list-help:list-post:list-archive :list-unsubscribe:list-id:precedence:subject:references:in-reply-to :message-id:date:to:from:dkim-signature; bh=Ww2LSp6bczaair+HE3835uyxzaqJh3az+j6QKvIto98=; b=kj62kuXbpizC274hkTToH7UmduetHe3dPLXXFylui4MsdFdP0+ui6UPKgBaFiCRmOn ShP4RNfO8FwEGCR1ve63v/Z50ZV6Oo1ASHnk1/hQxRYgP0cU1hPp2cF0K+zaDZOtUHnq QZPxxhZSplz9JS7E+9Ru6By0MVQteMQq9QMPn27pxS9MhIhf+VA0ZVYDWxHSgauaZ9sy zjNdWRjNL2/P9hFFd8RX3UNsLjvTd+DXsWSk5T74R10Mr2uwBDdPc7qfP42Ltk4+YWEk o7wP3RvgP/oIOFDtbBTKRbKt0Gko4yxkuoYu/gAeWRXpqtKuidwvDXHRAY3bzKA/0QPu 7TcA== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@linaro.org header.s=google header.b=zANyOXl8; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org. [209.51.188.17]) by mx.google.com with ESMTPS id d42si20565001eda.396.2019.05.23.08.15.48 for (version=TLS1 cipher=AES128-SHA bits=128/128); Thu, 23 May 2019 08:15:48 -0700 (PDT) Received-SPF: pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; Authentication-Results: mx.google.com; dkim=fail header.i=@linaro.org header.s=google header.b=zANyOXl8; spf=pass (google.com: domain of qemu-devel-bounces+patch=linaro.org@nongnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom="qemu-devel-bounces+patch=linaro.org@nongnu.org"; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=linaro.org Received: from localhost ([127.0.0.1]:38650 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hTpRb-0005SV-AF for patch@linaro.org; Thu, 23 May 2019 11:15:47 -0400 Received: from eggs.gnu.org ([209.51.188.92]:39705) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1hTpKJ-0007Sc-RR for qemu-devel@nongnu.org; Thu, 23 May 2019 11:08:17 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1hTpKI-0001st-MR for qemu-devel@nongnu.org; Thu, 23 May 2019 11:08:15 -0400 Received: from mail-ua1-x942.google.com ([2607:f8b0:4864:20::942]:36937) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1hTpKI-0001si-HS for qemu-devel@nongnu.org; Thu, 23 May 2019 11:08:14 -0400 Received: by mail-ua1-x942.google.com with SMTP id t18so2299970uar.4 for ; Thu, 23 May 2019 08:08:14 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references; bh=Ww2LSp6bczaair+HE3835uyxzaqJh3az+j6QKvIto98=; b=zANyOXl868k1DZ2O2uw27Zc+Ij5525RFDlxmgzWpoaQyraKh2FMJKjBYjcd1AtCWhV aEYdYaWntos3m5VseeFCeiatLTymiEoYaczJWghufdZrZvGihK1OGCQP2doidjLFJFmn bCOrpZy349QfP+ep6P/n0AuJZez+sHHDby90Uh2kc7BP4Nv0c4l3ti1kl/PTfhDbi7Sp udQJQXiWU/mEfa5W0VGVqHsKc8EKdz27zoteHp5xBtMTVd1ffejQ6QYWRo2SEj7QtXy4 3Oq5Ca5yTzsl5KrFp7q9iCAiaCXMYjCYzzgPsQ+4xPvr7duZd/Q9ej7bfx7o126jNvRO tp6A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references; bh=Ww2LSp6bczaair+HE3835uyxzaqJh3az+j6QKvIto98=; b=Jx5gTrKIdfq+qTBTOrIXMsBvhAw/jEq+9uZifvBnO/48URiNYTSUWk5cMJ22fsYgvE jsBdRq3vqP/ntia+x1Kijol0MePj04Yd878/Hc0Vz6o/vYPKS9ksLEMbf+SiihPYlxek L6vzfhCFutsCiLSH2Ko8a1wRI+YU/9LhMMBk3+1DA6o6RPiqswuTLwsw8sdxcILKG/xa q2n0sAR4Ij8KMHZ3xWM5jirK6veBbdXL+x685wXKJ5iblRv4fEtbl55cosSSeKx/Td86 G9cX3xZignD53e2k7b+n07ADORehwpiJbCuHqrjYpjlmsmwVatxz40sCXgpFfDs0138d bt6g== X-Gm-Message-State: APjAAAVdSj4FSEUIMz6WXJeM0v2Rwry6FC/HOyyfBN51+sDY/+nXEHhw a2rm/eNVpcQoY5h4nF8yb0yHulWkFTI= X-Received: by 2002:a9f:376e:: with SMTP id a43mr8798178uae.57.1558624093591; Thu, 23 May 2019 08:08:13 -0700 (PDT) Received: from localhost.localdomain (ip-173-130-215-183.orldfl.spcsdns.net. [173.130.215.183]) by smtp.gmail.com with ESMTPSA id p70sm4227462vsd.25.2019.05.23.08.08.12 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Thu, 23 May 2019 08:08:12 -0700 (PDT) From: Richard Henderson To: qemu-devel@nongnu.org Date: Thu, 23 May 2019 11:08:02 -0400 Message-Id: <20190523150803.31504-6-richard.henderson@linaro.org> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190523150803.31504-1-richard.henderson@linaro.org> References: <20190523150803.31504-1-richard.henderson@linaro.org> X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::942 Subject: [Qemu-devel] [PATCH 5/6] target/rx: Collect all bytes during disassembly X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ysato@users.sourceforge.jp Errors-To: qemu-devel-bounces+patch=linaro.org@nongnu.org Sender: "Qemu-devel" Collected, to be used in the next patch. Signed-off-by: Richard Henderson --- target/rx/disas.c | 62 ++++++++++++++++++++++++++++++++--------------- 1 file changed, 42 insertions(+), 20 deletions(-) -- 2.17.1 Reviewed-by: Yoshinori Sato diff --git a/target/rx/disas.c b/target/rx/disas.c index ebc1a44249..5a32a87534 100644 --- a/target/rx/disas.c +++ b/target/rx/disas.c @@ -25,43 +25,59 @@ typedef struct DisasContext { disassemble_info *dis; uint32_t addr; uint32_t pc; + uint8_t len; + uint8_t bytes[8]; } DisasContext; static uint32_t decode_load_bytes(DisasContext *ctx, uint32_t insn, - int i, int n) + int i, int n) { - bfd_byte buf; + uint32_t addr = ctx->addr; + + g_assert(ctx->len == i); + g_assert(n <= ARRAY_SIZE(ctx->bytes)); + while (++i <= n) { - ctx->dis->read_memory_func(ctx->addr++, &buf, 1, ctx->dis); - insn |= buf << (32 - i * 8); + ctx->dis->read_memory_func(addr++, &ctx->bytes[i - 1], 1, ctx->dis); + insn |= ctx->bytes[i - 1] << (32 - i * 8); } + ctx->addr = addr; + ctx->len = n; + return insn; } static int32_t li(DisasContext *ctx, int sz) { - int32_t addr; - bfd_byte buf[4]; - addr = ctx->addr; + uint32_t addr = ctx->addr; + uintptr_t len = ctx->len; switch (sz) { case 1: + g_assert(len + 1 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 1; - ctx->dis->read_memory_func(addr, buf, 1, ctx->dis); - return (int8_t)buf[0]; + ctx->len += 1; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 1, ctx->dis); + return (int8_t)ctx->bytes[len]; case 2: + g_assert(len + 2 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 2; - ctx->dis->read_memory_func(addr, buf, 2, ctx->dis); - return ldsw_le_p(buf); + ctx->len += 2; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 2, ctx->dis); + return ldsw_le_p(ctx->bytes + len); case 3: + g_assert(len + 3 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 3; - ctx->dis->read_memory_func(addr, buf, 3, ctx->dis); - return (int8_t)buf[2] << 16 | lduw_le_p(buf); + ctx->len += 3; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 3, ctx->dis); + return (int8_t)ctx->bytes[len + 2] << 16 | lduw_le_p(ctx->bytes + len); case 0: + g_assert(len + 4 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 4; - ctx->dis->read_memory_func(addr, buf, 4, ctx->dis); - return ldl_le_p(buf); + ctx->len += 4; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 4, ctx->dis); + return ldl_le_p(ctx->bytes + len); default: g_assert_not_reached(); } @@ -110,7 +126,7 @@ static const char psw[] = { static void rx_index_addr(DisasContext *ctx, char out[8], int ld, int mi) { uint32_t addr = ctx->addr; - uint8_t buf[2]; + uintptr_t len = ctx->len; uint16_t dsp; switch (ld) { @@ -119,14 +135,18 @@ static void rx_index_addr(DisasContext *ctx, char out[8], int ld, int mi) out[0] = '\0'; return; case 1: + g_assert(len + 1 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 1; - ctx->dis->read_memory_func(addr, buf, 1, ctx->dis); - dsp = buf[0]; + ctx->len += 1; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 1, ctx->dis); + dsp = ctx->bytes[len]; break; case 2: + g_assert(len + 2 <= ARRAY_SIZE(ctx->bytes)); ctx->addr += 2; - ctx->dis->read_memory_func(addr, buf, 2, ctx->dis); - dsp = lduw_le_p(buf); + ctx->len += 2; + ctx->dis->read_memory_func(addr, ctx->bytes + len, 2, ctx->dis); + dsp = lduw_le_p(ctx->bytes + len); break; default: g_assert_not_reached(); @@ -1392,8 +1412,10 @@ int print_insn_rx(bfd_vma addr, disassemble_info *dis) DisasContext ctx; uint32_t insn; int i; + ctx.dis = dis; ctx.pc = ctx.addr = addr; + ctx.len = 0; insn = decode_load(&ctx); if (!decode(&ctx, insn)) {