From nobody Tue Feb 10 06:07:51 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=linaro.org Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624456288587408.0529541675211; Wed, 23 Jun 2021 06:51:28 -0700 (PDT) Received: from localhost ([::1]:58040 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lw3Hq-0005Y6-JW for importer@patchew.org; Wed, 23 Jun 2021 09:51:26 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:38940) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lw3Ea-0000EC-As for qemu-devel@nongnu.org; Wed, 23 Jun 2021 09:48:04 -0400 Received: from mail-wm1-x330.google.com ([2a00:1450:4864:20::330]:55284) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lw3EY-0005CA-HF for qemu-devel@nongnu.org; Wed, 23 Jun 2021 09:48:04 -0400 Received: by mail-wm1-x330.google.com with SMTP id m3so1681596wms.4 for ; Wed, 23 Jun 2021 06:48:02 -0700 (PDT) Received: from zen.linaroharston ([51.148.130.216]) by smtp.gmail.com with ESMTPSA id o11sm39675wmq.1.2021.06.23.06.47.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 23 Jun 2021 06:47:57 -0700 (PDT) Received: from zen.lan (localhost [127.0.0.1]) by zen.linaroharston (Postfix) with ESMTP id 34CB91FF8C; Wed, 23 Jun 2021 14:47:57 +0100 (BST) 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 :mime-version:content-transfer-encoding; bh=sGa6vECs+n4MFunaX33qznn0819BFDMLBnsgyGX5SyY=; b=riUc9i+FiOGeiKSwrzvjlztGq5Ojwduk++apKrajxc2lhOwY1bs6Np7P5Wj29PmN2N DgNqQnrZ1P3dawxcwq1v0+IBrPhlUlqggTAkKJFfOvDSDlwT9G4BDDV+B1soST/f23Da X9M+apO6aRMNag6RJFm4iTuSwqQ6zZZOS0/IBpgJM1MwzODC9sMSQmHluph/YyTagP/9 NI+Aikt+cc2yqgPp+gsunsH3uRcpvjxzJRTkuGPam80tlK/qfuoCffTh0mfSfE93mRMS IBTVeCNYQur/9OKkR0tKezQ0GWKuIO3SXGqNGo1kG5vHFz47Q8ycdvey1SW/2MtPLoKm 0kaA== 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:mime-version:content-transfer-encoding; bh=sGa6vECs+n4MFunaX33qznn0819BFDMLBnsgyGX5SyY=; b=HgczdrZhj+0d9FkpsGEqppbkvioddwQVfSE2Gd+Twx/Rv+1wq/+juaJl2oYGFgT/yt Sxbqrc7qrmXU/Dojb4iNXOEFZw773O3r60v1yM6Fu0+0Gc66JVBax+2GUm3rFzjteOKb g/33yU5s9dLx6yuRwJ7DEEmlPpZSpHRIynxScBUkokx/nDyBiuQRA2x/0MtjGLR4BjxI 41VXXyZXARL3FpFz/MGhBh8+1bAhXjF6OdhPHZsWznr2PoF8INOMDrMiaUG8HjkTPXEP 3bZ9BZEaQrSXQyZ6/HRMe7OpKotQf9hk4tm13+ZAIoKwDBdseKR1xjgDxgem+Qgzy9C0 IsXQ== X-Gm-Message-State: AOAM532ENj0v5nNysDjzHEer+gPb+sgNz8Wh3TruBWDCbwORzeEndQRU onfCzaFKGWDh3Mp2xjGorOmEqQ== X-Google-Smtp-Source: ABdhPJzTlcHTkAUDsy5MQ547f9TMyRuJKw5YeRMc/9tK0Bh845D72YbvWm0VgvJor8eIa8rXAOhhPQ== X-Received: by 2002:a05:600c:ada:: with SMTP id c26mr11138879wmr.189.1624456081267; Wed, 23 Jun 2021 06:48:01 -0700 (PDT) From: =?UTF-8?q?Alex=20Benn=C3=A9e?= To: qemu-devel@nongnu.org Subject: [PATCH v4 2/2] tests/tcg: port SYS_HEAPINFO to a system test Date: Wed, 23 Jun 2021 14:47:56 +0100 Message-Id: <20210623134756.30930-3-alex.bennee@linaro.org> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20210623134756.30930-1-alex.bennee@linaro.org> References: <20210623134756.30930-1-alex.bennee@linaro.org> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2a00:1450:4864:20::330; envelope-from=alex.bennee@linaro.org; helo=mail-wm1-x330.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: peter.maydell@linaro.org, qemu-arm@nongnu.org, =?UTF-8?q?Alex=20Benn=C3=A9e?= Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) This allows us to check our new SYS_HEAPINFO implementation generates sane values. Signed-off-by: Alex Benn=C3=A9e --- tests/tcg/aarch64/system/semiheap.c | 74 +++++++++++++++++++++++++++++ 1 file changed, 74 insertions(+) create mode 100644 tests/tcg/aarch64/system/semiheap.c diff --git a/tests/tcg/aarch64/system/semiheap.c b/tests/tcg/aarch64/system= /semiheap.c new file mode 100644 index 0000000000..d5613dca59 --- /dev/null +++ b/tests/tcg/aarch64/system/semiheap.c @@ -0,0 +1,74 @@ +/* + * Semihosting System HEAPINFO Test + * + * Copyright (c) 2021 Linaro Ltd + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include +#include +#include + +#define SYS_HEAPINFO 0x16 + +uintptr_t __semi_call(uintptr_t type, uintptr_t arg0) +{ + register uintptr_t t asm("x0") =3D type; + register uintptr_t a0 asm("x1") =3D arg0; + asm("hlt 0xf000" + : "=3Dr" (t) + : "r" (t), "r" (a0)); + + return t; +} + +int main(int argc, char *argv[argc]) +{ + struct { + void *heap_base; + void *heap_limit; + void *stack_base; + void *stack_limit; + } info; + void *ptr_to_info =3D (void *) &info; + + ml_printf("Semihosting Heap Info Test\n"); + + /* memset(&info, 0, sizeof(info)); */ + __semi_call(SYS_HEAPINFO, (uintptr_t) &ptr_to_info); + + if (info.heap_base =3D=3D NULL || info.heap_limit =3D=3D NULL) { + ml_printf("null heap: %p -> %p\n", info.heap_base, info.heap_limit= ); + return -1; + } + + /* Error if heap base is above limit */ + if ((uintptr_t) info.heap_base >=3D (uintptr_t) info.heap_limit) { + ml_printf("heap base %p >=3D heap_limit %p\n", + info.heap_base, info.heap_limit); + return -2; + } + + if (info.stack_base =3D=3D NULL) { + ml_printf("null stack: %p -> %p\n", info.stack_base, info.stack_li= mit); + return -3; + } + + /* + * We don't check our local variables are inside the reported + * stack because the runtime may select a different stack area (as + * our boot.S code does). However we can check we don't clash with + * the heap. + */ + if (ptr_to_info > info.heap_base && ptr_to_info < info.heap_limit) { + ml_printf("info appears to be inside the heap: %p in %p:%p\n", + ptr_to_info, info.heap_base, info.heap_limit); + return -4; + } + + ml_printf("heap: %p -> %p\n", info.heap_base, info.heap_limit); + ml_printf("stack: %p <- %p\n", info.stack_limit, info.stack_base); + ml_printf("Passed HeapInfo checks\n"); + return 0; +} --=20 2.20.1