From mboxrd@z Thu Jan 1 00:00:00 1970 Received: by 2002:a17:906:18b1:b0:a2e:1324:ea5c with SMTP id c17csp580058ejf; Mon, 15 Jan 2024 16:36:11 -0800 (PST) X-Google-Smtp-Source: AGHT+IE3elOp4Ez9JdRNgXjul484tg3DTYgHEAFjwEogMgACa4CF4T6N5Qhbn0BIB0Dix7eDHtCe X-Received: by 2002:a05:6871:33a1:b0:203:bc5d:cf06 with SMTP id ng33-20020a05687133a100b00203bc5dcf06mr9546552oac.72.1705365370865; Mon, 15 Jan 2024 16:36:10 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1705365370; cv=none; d=google.com; s=arc-20160816; b=fvAbcr7/exVZi+2a0TIkJdSFwqR+rdAqUwPsvo6rhfegPP/lOWfnliSUHTFKnKVG1Q +q5Yra/vaWXHvgyGiKClZ9spmezMOjN/5oo1pOgT4wodyLFBOvQikTpiXrnaDBqH4lPT e2qG+oEIbSQhI0Q2rFiDae8r8LxQEyTU52XWp9r4O135bdyfKtCOSiS9GnxDYVGGzKZI 7IWlne51MlTho2dl0LtKEb6dNYNiJUr8+n1GeO+J2sVv07BdA1vYx+ZLsVsQ5+tV5Rdl 7o2h2BfMdBzZHvK9IKjLdUG/96nJJbw/V57vvO0RpcmKJvVQrhWvrcOWZYFP4wBVclho 5yuQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:dkim-signature; bh=yHR/ROIVHnEEoiARJUniG8e0cZDOc3zEQr2XoI/ghDE=; fh=MCCLRI7Eav0C58J4xbQiDqdrgb9nG6Ic0RkQM1eww+k=; b=UIUcC2NG5JftjlmLLGtSn9clBG0thAsM/sdkb66LHDovvwf1oTp46CyrWEB+RLMlCT Qf1ncak6h+m25EuMRfDJFhUgBGwoSM6SJTKkka5wQc3UlSLumud3AeCDORKAuK4sKlAl uN6D3gaGERxmKphYTOvrhTHsb3HJHtyu8c1VdF9o/hZVsA6Q5hJwn94JlzDPS3+KfDQ+ sPc5BstltYRIGPhBEt+V6uINeOxz1NbDphJq0evU8KTU/OLXb5dXPAyElvkUWMqHfJ8d mS0ZFxq1UoruvU5SU1d8l+Wv9lgEK0magy8TeQkKPTPtZh36p0Ec3J8d+LhEybsfngMY 6+xw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@ibm.com header.s=pp1 header.b=U176WwEW; spf=pass (google.com: domain of iii@linux.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=iii@linux.ibm.com; dmarc=pass (p=REJECT sp=NONE dis=NONE) header.from=ibm.com Return-Path: Received: from mx0a-001b2d01.pphosted.com (mx0a-001b2d01.pphosted.com. [148.163.156.1]) by mx.google.com with ESMTPS id t186-20020a6381c3000000b005cdfc9ad727si9943760pgd.55.2024.01.15.16.36.10 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 15 Jan 2024 16:36:10 -0800 (PST) Received-SPF: pass (google.com: domain of iii@linux.ibm.com designates 148.163.156.1 as permitted sender) client-ip=148.163.156.1; Authentication-Results: mx.google.com; dkim=pass header.i=@ibm.com header.s=pp1 header.b=U176WwEW; spf=pass (google.com: domain of iii@linux.ibm.com designates 148.163.156.1 as permitted sender) smtp.mailfrom=iii@linux.ibm.com; dmarc=pass (p=REJECT sp=NONE dis=NONE) header.from=ibm.com Received: from pps.filterd (m0356517.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 40FNwd5b027362; Tue, 16 Jan 2024 00:36:10 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=yHR/ROIVHnEEoiARJUniG8e0cZDOc3zEQr2XoI/ghDE=; b=U176WwEWxvJUVhRPpRGIl4306+Z5mtcYBoPAlCyp+CehN1vff3xb1cggMLh9t4289Kxj qZ/BsSNhLsU3syZe6/x0Nv//Yz8Gbjs2gHOwDImvpWp9AVMs50yb9d6z+0a4ANePVLMO jBxUURgGpWEzawOYvoa/vZZx0ToEYS82xfaVe3UaYX7qSK4+mrcGYjlFQ16GWrfVfOm5 cDdN9+gjp/n85o/in3rtZ/gjC0WkNuj3UIIHRJIJjcWwgKKj7Ku32zgrwkH1ZnzGHcqa ptchoq8VFSwfZeI20eVclFpkWU6i5CmodjooDXyHcCNoAnZ+RMyWwBkYY6dB8iLJzvQ7 rA== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3vneusrqd0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Jan 2024 00:36:09 +0000 Received: from m0356517.ppops.net (m0356517.ppops.net [127.0.0.1]) by pps.reinject (8.17.1.5/8.17.1.5) with ESMTP id 40G004g2031202; Tue, 16 Jan 2024 00:36:09 GMT Received: from ppma11.dal12v.mail.ibm.com (db.9e.1632.ip4.static.sl-reverse.com [50.22.158.219]) by mx0a-001b2d01.pphosted.com (PPS) with ESMTPS id 3vneusrqcn-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Jan 2024 00:36:09 +0000 Received: from pps.filterd (ppma11.dal12v.mail.ibm.com [127.0.0.1]) by ppma11.dal12v.mail.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 40FN0CIQ023659; Tue, 16 Jan 2024 00:36:08 GMT Received: from smtprelay06.fra02v.mail.ibm.com ([9.218.2.230]) by ppma11.dal12v.mail.ibm.com (PPS) with ESMTPS id 3vm7j1jyd9-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 16 Jan 2024 00:36:08 +0000 Received: from smtpav01.fra02v.mail.ibm.com (smtpav01.fra02v.mail.ibm.com [10.20.54.100]) by smtprelay06.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 40G0a6vE39518782 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 16 Jan 2024 00:36:06 GMT Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 593FE2004B; Tue, 16 Jan 2024 00:36:06 +0000 (GMT) Received: from smtpav01.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id AB5D92004E; Tue, 16 Jan 2024 00:36:05 +0000 (GMT) Received: from heavy.boeblingen.de.ibm.com (unknown [9.179.4.64]) by smtpav01.fra02v.mail.ibm.com (Postfix) with ESMTP; Tue, 16 Jan 2024 00:36:05 +0000 (GMT) From: Ilya Leoshkevich To: Richard Henderson , Peter Maydell , =?UTF-8?q?Alex=20Benn=C3=A9e?= , David Hildenbrand Cc: Paolo Bonzini , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , qemu-devel@nongnu.org, qemu-arm@nongnu.org, qemu-s390x@nongnu.org, Ilya Leoshkevich Subject: [PATCH v3 3/3] tests/tcg: Add the PROT_NONE gdbstub test Date: Tue, 16 Jan 2024 01:31:42 +0100 Message-ID: <20240116003551.75168-4-iii@linux.ibm.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240116003551.75168-1-iii@linux.ibm.com> References: <20240116003551.75168-1-iii@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-ORIG-GUID: 1Iv91j7IGw3vGMi_uIW68CGdubxxYZM8 X-Proofpoint-GUID: UemQ3Cq7r2CHpyjTwaQ1wEOKtFY7oYXX X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.997,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-01-15_17,2024-01-15_03,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 lowpriorityscore=0 phishscore=0 bulkscore=0 clxscore=1015 spamscore=0 suspectscore=0 impostorscore=0 mlxscore=0 adultscore=0 mlxlogscore=866 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2311290000 definitions=main-2401160002 X-TUID: InrCWqL2UZ1g Make sure that qemu gdbstub, like gdbserver, allows reading from and writing to PROT_NONE pages. Signed-off-by: Ilya Leoshkevich --- tests/tcg/multiarch/Makefile.target | 9 +++++- tests/tcg/multiarch/gdbstub/prot-none.py | 22 +++++++++++++ tests/tcg/multiarch/prot-none.c | 40 ++++++++++++++++++++++++ 3 files changed, 70 insertions(+), 1 deletion(-) create mode 100644 tests/tcg/multiarch/gdbstub/prot-none.py create mode 100644 tests/tcg/multiarch/prot-none.c diff --git a/tests/tcg/multiarch/Makefile.target b/tests/tcg/multiarch/Makefile.target index d31ba8d6ae4..315a2e13588 100644 --- a/tests/tcg/multiarch/Makefile.target +++ b/tests/tcg/multiarch/Makefile.target @@ -101,13 +101,20 @@ run-gdbstub-registers: sha512 --bin $< --test $(MULTIARCH_SRC)/gdbstub/registers.py, \ checking register enumeration) +run-gdbstub-prot-none: prot-none + $(call run-test, $@, env PROT_NONE_PY=1 $(GDB_SCRIPT) \ + --gdb $(GDB) \ + --qemu $(QEMU) --qargs "$(QEMU_OPTS)" \ + --bin $< --test $(MULTIARCH_SRC)/gdbstub/prot-none.py, \ + accessing PROT_NONE memory) + else run-gdbstub-%: $(call skip-test, "gdbstub test $*", "need working gdb with $(patsubst -%,,$(TARGET_NAME)) support") endif EXTRA_RUNS += run-gdbstub-sha1 run-gdbstub-qxfer-auxv-read \ run-gdbstub-proc-mappings run-gdbstub-thread-breakpoint \ - run-gdbstub-registers + run-gdbstub-registers run-gdbstub-prot-none # ARM Compatible Semi Hosting Tests # diff --git a/tests/tcg/multiarch/gdbstub/prot-none.py b/tests/tcg/multiarch/gdbstub/prot-none.py new file mode 100644 index 00000000000..f1f1dd82cbe --- /dev/null +++ b/tests/tcg/multiarch/gdbstub/prot-none.py @@ -0,0 +1,22 @@ +"""Test that GDB can access PROT_NONE pages. + +This runs as a sourced script (via -x, via run-test.py). + +SPDX-License-Identifier: GPL-2.0-or-later +""" +from test_gdbstub import main, report + + +def run_test(): + """Run through the tests one by one""" + gdb.Breakpoint("break_here") + gdb.execute("continue") + val = gdb.parse_and_eval("*(char[2] *)q").string() + report(val == "42", "{} == 42".format(val)) + gdb.execute("set *(char[3] *)q = \"24\"") + gdb.execute("continue") + exitcode = int(gdb.parse_and_eval("$_exitcode")) + report(exitcode == 0, "{} == 0".format(exitcode)) + + +main(run_test) diff --git a/tests/tcg/multiarch/prot-none.c b/tests/tcg/multiarch/prot-none.c new file mode 100644 index 00000000000..dc56aadb3c5 --- /dev/null +++ b/tests/tcg/multiarch/prot-none.c @@ -0,0 +1,40 @@ +/* + * Test that GDB can access PROT_NONE pages. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ +#include +#include +#include +#include +#include + +void break_here(void *q) +{ +} + +int main(void) +{ + long pagesize = sysconf(_SC_PAGESIZE); + void *p, *q; + int err; + + p = mmap(NULL, pagesize * 2, PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); + assert(p != MAP_FAILED); + q = p + pagesize - 1; + strcpy(q, "42"); + + err = mprotect(p, pagesize * 2, PROT_NONE); + assert(err == 0); + + break_here(q); + + err = mprotect(p, pagesize * 2, PROT_READ); + assert(err == 0); + if (getenv("PROT_NONE_PY")) { + assert(strcmp(q, "24") == 0); + } + + return EXIT_SUCCESS; +} -- 2.43.0