{"id":25764,"url":"https://patchwork.libcamera.org/api/1.1/patches/25764/?format=json","web_url":"https://patchwork.libcamera.org/patch/25764/","project":{"id":1,"url":"https://patchwork.libcamera.org/api/1.1/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":"<20260114052914.26432-1-kieran.bingham@ideasonboard.com>","date":"2026-01-14T05:29:14","name":"libcamera: Provide an ABI compatibility record","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"fe59fc029eea957b1664c19587322b2b25f16ee9","submitter":{"id":4,"url":"https://patchwork.libcamera.org/api/1.1/people/4/?format=json","name":"Kieran Bingham","email":"kieran.bingham@ideasonboard.com"},"delegate":null,"mbox":"https://patchwork.libcamera.org/patch/25764/mbox/","series":[{"id":5705,"url":"https://patchwork.libcamera.org/api/1.1/series/5705/?format=json","web_url":"https://patchwork.libcamera.org/project/libcamera/list/?series=5705","date":"2026-01-14T05:29:14","name":"libcamera: Provide an ABI compatibility record","version":1,"mbox":"https://patchwork.libcamera.org/series/5705/mbox/"}],"comments":"https://patchwork.libcamera.org/api/patches/25764/comments/","check":"pending","checks":"https://patchwork.libcamera.org/api/patches/25764/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 61C91BE08B\n\tfor ;\n\tWed, 14 Jan 2026 05:29:22 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 95B7D61FC3;\n\tWed, 14 Jan 2026 06:29:21 +0100 (CET)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id A4B586142F\n\tfor ;\n\tWed, 14 Jan 2026 06:29:19 +0100 (CET)","from charm.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 CD72D4BB;\n\tWed, 14 Jan 2026 06:28:52 +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=\"NurtobDn\"; dkim-atps=neutral","DKIM-Signature":"v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1768368532;\n\tbh=jSlOl+wTaC1ujLYdSdE4sIBDHCILFDRHAqcTgZFotQ4=;\n\th=From:To:Cc:Subject:Date:From;\n\tb=NurtobDn+8sDFpfLhnXBEQCiySW3wjtMzCz1oasWtorzX5bk8m1W+kM6TFoAC2HFj\n\tEDL3TFsTFre6oCZ6AWgbOHMQYffg8QD9Fpw5DI2VzSqY1/E1RsFYvZVE1ZpADFbVnZ\n\tsvb4Pb+/ukBL/vs1DXeXmhSU7Qn9CpBbRk5VsZYY=","From":"Kieran Bingham ","To":"libcamera devel ","Cc":"Kieran Bingham ","Subject":"[PATCH] libcamera: Provide an ABI compatibility record","Date":"Wed, 14 Jan 2026 05:29:14 +0000","Message-ID":"<20260114052914.26432-1-kieran.bingham@ideasonboard.com>","X-Mailer":"git-send-email 2.52.0","MIME-Version":"1.0","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":"Changes between releases may require updates to user applications\nand ABI changes will require a recompilation of applications.\n\nTrack changes which have an impact on the ABI or API to support\nusers migrating to a newer release.\n\nSigned-off-by: Kieran Bingham \n---\n ABI | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++\n 1 file changed, 50 insertions(+)\n create mode 100644 ABI","diff":"diff --git a/ABI b/ABI\nnew file mode 100644\nindex 000000000000..f2772402225f\n--- /dev/null\n+++ b/ABI\n@@ -0,0 +1,50 @@\n+# ABI/API Compatibility log\n+\n+This file reports on ABI and API changes which occur between releases.\n+\n+The ABI can be checked and verified with the abi-checker tool. To report on the\n+ABI and API compatibility of your local tree against the latest release, simply\n+run:\n+\n+ ./utils/abi-compat.sh\n+\n+To check the API and ABI compatibility of a single commit specify the previous\n+commit as the start point:\n+\n+ ./utils/abi-compat.sh $COMMIT^ $COMMIT\n+\n+## v0.7\n+\n+Commit: b7ed763f0dfb (\"libcamera: request: Make controls_ a class instance\")\n+ struct Request\n+ - Size of this type has been changed from 80 bytes to 152 bytes.\n+ The fields or parameters of such data type may be incorrectly initialized or\n+ accessed by old client applications.\n+\n+ - Type of field controls_ has been changed from struct ControlList* (8 bytes)\n+ to struct ControlList (80 bytes).\n+ Size of the inclusive type has been changed.\n+\n+ Impact:\n+\n+ The Request->controls() now has the ControlList allocated directly inside the\n+ Request object. There is no API impact, but the change to the size and\n+ offsets of the Request object is an ABI breakage and requires re-compilation\n+ of users.\n+\n+\n+Commit: dce2ef36f2ef (\"libcamera: request: Move metadata_ to Private\")\n+ struct Request\n+ - Size of this type has been changed from 88 bytes to 80 bytes.\n+ The fields or parameters of such data type may be incorrectly initialized or\n+ accessed by old client applications.\n+\n+ - Field metadata_ has been removed from this type.\n+ Size of the inclusive type has been changed.\n+\n+ Impact:\n+\n+ The Request->metadata() usage now returns a const reference to the underlying\n+ metadata control list. Users can not modify this data. The size and offsets\n+ of the Request object is an ABI breakage and requires re-compilation of users.\n+\n","prefixes":[]}