{"id":24931,"url":"https://patchwork.libcamera.org/api/patches/24931/?format=json","web_url":"https://patchwork.libcamera.org/patch/24931/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/projects/1/?format=json","name":"libcamera","link_name":"libcamera","list_id":"libcamera_core","list_email":"libcamera-devel@lists.libcamera.org","web_url":"","scm_url":"","webscm_url":""},"msgid":"<20251031115216.3776845-2-kieran.bingham@ideasonboard.com>","date":"2025-10-31T11:52:14","name":"[v3,1/2] test: utils: Validate hex sign extension","commit_ref":null,"pull_url":null,"state":"superseded","archived":false,"hash":"c4a71be655ac28382a992135097c29ce396b55c7","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/people/4/?format=json","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/24931/mbox/","series":[{"id":5548,"url":"https://patchwork.libcamera.org/api/series/5548/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5548","date":"2025-10-31T11:52:13","name":"libcamera: base: utils: Prevent hex signed extension","version":3,"mbox":"https://patchwork.libcamera.org/series/5548/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/24931/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/24931/checks/","tags":{},"headers":{"Return-Path":"","X-Original-To":"parsemail@patchwork.libcamera.org","Delivered-To":"parsemail@patchwork.libcamera.org","Received":["from lancelot.ideasonboard.com (lancelot.ideasonboard.com\n\t[92.243.16.209])\n\tby patchwork.libcamera.org (Postfix) with ESMTPS id 9A9ABC3259\n\tfor ;\n\tFri, 31 Oct 2025 11:52:28 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 60058609D7;\n\tFri, 31 Oct 2025 12:52:26 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[IPv6:2001:4b98:dc2:55:216:3eff:fef7:d647])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 46A0A60947\n\tfor ;\n\tFri, 31 Oct 2025 12:52:23 +0100 (CET)","from Monstersaurus.hippo-penny.ts.net\n\t(cpc89244-aztw30-2-0-cust6594.18-1.cable.virginm.net [86.31.185.195])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 7EC0611DD;\n\tFri, 31 Oct 2025 12:50:32 +0100 (CET)"],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key;\n\tunprotected) header.d=ideasonboard.com header.i=@ideasonboard.com\n\theader.b=\"CWg1xxoz\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1761911432;\n\tbh=QAoPfSzdtnw/jpHJmkeH87f+rmQW83cTY5Jnv4DtdRI=;\n\th=From:To:Cc:Subject:Date:In-Reply-To:References:From;\n\tb=CWg1xxozXfKALv1qaFWzs7lAyI/gsKg/E9LQR7gyCO6JBEVC6e22ydsVtaJwbAsp1\n\tU5WHfUVQFSS1UM+ru/5LxXP5bLTP7DXoxTidmRZLLA4+iqZtjDr1g1F0RZ+agJnyGo\n\tyM6gRdELsaXil9JSH6SYh0/WcG/cVLpYsDHxPdx8=","From":"Kieran Bingham ","To":"libcamera devel ","Cc":"Kieran Bingham , =?utf-8?q?Barnab?=\n\t=?utf-8?b?w6FzIFDFkWN6ZQ==?= ,\n\tLaurent Pinchart ","Subject":"[PATCH v3 1/2] test: utils: Validate hex sign extension","Date":"Fri, 31 Oct 2025 11:52:14 +0000","Message-ID":"<20251031115216.3776845-2-kieran.bingham@ideasonboard.com>","X-Mailer":"git-send-email 2.50.1","In-Reply-To":"<20251031115216.3776845-1-kieran.bingham@ideasonboard.com>","References":"<20251031115216.3776845-1-kieran.bingham@ideasonboard.com>","MIME-Version":"1.0","Content-Type":"text/plain; charset=UTF-8","Content-Transfer-Encoding":"8bit","X-BeenThere":"libcamera-devel@lists.libcamera.org","X-Mailman-Version":"2.1.29","Precedence":"list","List-Id":"","List-Unsubscribe":",\n\t","List-Archive":"","List-Post":"","List-Help":"","List-Subscribe":",\n\t","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "},"content":"Converting strings to hex stores data in a uint64_t. This can\nincorrectly sign extend if the type being converted is signed.\n\nProvide tests to be sure that the signed conversion is correct.\n\nThis is known to fail, so report as expected failure.\n\nReviewed-by: Barnabás Pőcze \nReviewed-by: Laurent Pinchart \nSigned-off-by: Kieran Bingham \n---\n test/meson.build | 2 +-\n test/utils.cpp | 17 +++++++++++++++++\n 2 files changed, 18 insertions(+), 1 deletion(-)","diff":"diff --git a/test/meson.build b/test/meson.build\nindex 52f04364e4fc..96c4477f04b2 100644\n--- a/test/meson.build\n+++ b/test/meson.build\n@@ -73,7 +73,7 @@ internal_tests = [\n {'name': 'timer-fail', 'sources': ['timer-fail.cpp'], 'should_fail': true},\n {'name': 'timer-thread', 'sources': ['timer-thread.cpp']},\n {'name': 'unique-fd', 'sources': ['unique-fd.cpp']},\n- {'name': 'utils', 'sources': ['utils.cpp']},\n+ {'name': 'utils', 'sources': ['utils.cpp'], 'should_fail': true},\n {'name': 'vector', 'sources': ['vector.cpp']},\n {'name': 'yaml-parser', 'sources': ['yaml-parser.cpp']},\n ]\ndiff --git a/test/utils.cpp b/test/utils.cpp\nindex ca2e4f3b3e85..b5ce94e5e912 100644\n--- a/test/utils.cpp\n+++ b/test/utils.cpp\n@@ -218,6 +218,23 @@ protected:\n \t\tos << utils::hex(static_cast(0x42), 1) << \" \";\n \t\tref += \"0x42 \";\n \n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffffffff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffffffff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffffffffffffffff \";\n+\t\tos << utils::hex(static_cast(-1)) << \" \";\n+\t\tref += \"0xffffffffffffffff \";\n+\n \t\tstd::string s = os.str();\n \t\tif (s != ref) {\n \t\t\tcerr << \"utils::hex() test failed, expected '\" << ref\n","prefixes":["v3","1/2"]}