[{"id":27818,"web_url":"https://patchwork.libcamera.org/comment/27818/","msgid":"","date":"2023-09-19T17:07:55","subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","submitter":{"id":172,"url":"https://patchwork.libcamera.org/api/people/172/","name":"George Burgess","email":"gbiv@google.com"},"content":"On Tue, Sep 19, 2023 at 7:39 AM Laurent Pinchart\n wrote:\n>\n> Use the compiler.get_define() function to get the value of\n> _FORTIFY_SOURCE instead of iterating over the cpp_args. This simplies\n> the code, but also guarantees to return the actual value of\n> _FORTIFY_SOURCE, even if defined through other means than through the\n> meson cpp_args.\n>\n> Signed-off-by: Laurent Pinchart \n> ---\n> meson.build | 14 +++-----------\n> 1 file changed, 3 insertions(+), 11 deletions(-)\n>\n> diff --git a/meson.build b/meson.build\n> index 2e8342630332..e9a1c7e360ce 100644\n> --- a/meson.build\n> +++ b/meson.build\n> @@ -104,17 +104,9 @@ if cc.get_id() == 'clang'\n> # result in macro redefinition errors if the user already has a setting for\n> # `-D_FORTIFY_SOURCE`. Do not enable FORTIFY in either of those cases.\n> if get_option('optimization') != '0'\n> - has_fortify_define = false\n> - # Assume that if the user requests a FORTIFY level in cpp_args, they\n> - # do the same for c_args.\n> - foreach flag : get_option('cpp_args')\n> - if flag == '-U_FORTIFY_SOURCE'\n> - has_fortify_define = false\n> - elif flag.startswith('-D_FORTIFY_SOURCE=')\n> - has_fortify_define = true\n> - endif\n> - endforeach\n> - if not has_fortify_define\n> + fortify = cc.get_define('_FORTIFY_SOURCE')\n\nTIL about `cc.get_define` - nice cleanup :)\n\nI've tested this in CrOS and it works just as well, so in case my\nreview is helpful...\n\nReviewed-by: George Burgess IV \n\nThanks!\n\n> + if fortify == ''\n> + message('Adding _FORTIFY_SOURCE')\n> common_arguments += [\n> '-D_FORTIFY_SOURCE=2',\n> ]\n>\n> base-commit: 9c5eb9237cf6ae170086f0d4d87a025aa052cc9f\n> --\n> Regards,\n>\n> Laurent Pinchart\n>","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 16CD0BE080\n\tfor ;\n\tTue, 19 Sep 2023 17:08:36 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 87A436293E;\n\tTue, 19 Sep 2023 19:08:35 +0200 (CEST)","from mail-vk1-xa2a.google.com (mail-vk1-xa2a.google.com\n\t[IPv6:2607:f8b0:4864:20::a2a])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 1C67861DE8\n\tfor ;\n\tTue, 19 Sep 2023 19:08:33 +0200 (CEST)","by mail-vk1-xa2a.google.com with SMTP id\n\t71dfb90a1353d-4962ea9921aso2331655e0c.0\n\tfor ;\n\tTue, 19 Sep 2023 10:08:33 -0700 (PDT)"],"DKIM-Signature":["v=1; 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charset=\"UTF-8\"","Content-Transfer-Encoding":"quoted-printable","Subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","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","From":"George Burgess via libcamera-devel\n\t","Reply-To":"George Burgess ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":27819,"web_url":"https://patchwork.libcamera.org/comment/27819/","msgid":"<20230919183818.GB24325@pendragon.ideasonboard.com>","date":"2023-09-19T18:38:18","subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","submitter":{"id":2,"url":"https://patchwork.libcamera.org/api/people/2/","name":"Laurent Pinchart","email":"laurent.pinchart@ideasonboard.com"},"content":"On Tue, Sep 19, 2023 at 11:07:55AM -0600, George Burgess wrote:\n> On Tue, Sep 19, 2023 at 7:39 AM Laurent Pinchart wrote:\n> >\n> > Use the compiler.get_define() function to get the value of\n> > _FORTIFY_SOURCE instead of iterating over the cpp_args. This simplies\n> > the code, but also guarantees to return the actual value of\n> > _FORTIFY_SOURCE, even if defined through other means than through the\n> > meson cpp_args.\n> >\n> > Signed-off-by: Laurent Pinchart \n> > ---\n> > meson.build | 14 +++-----------\n> > 1 file changed, 3 insertions(+), 11 deletions(-)\n> >\n> > diff --git a/meson.build b/meson.build\n> > index 2e8342630332..e9a1c7e360ce 100644\n> > --- a/meson.build\n> > +++ b/meson.build\n> > @@ -104,17 +104,9 @@ if cc.get_id() == 'clang'\n> > # result in macro redefinition errors if the user already has a setting for\n> > # `-D_FORTIFY_SOURCE`. Do not enable FORTIFY in either of those cases.\n> > if get_option('optimization') != '0'\n> > - has_fortify_define = false\n> > - # Assume that if the user requests a FORTIFY level in cpp_args, they\n> > - # do the same for c_args.\n> > - foreach flag : get_option('cpp_args')\n> > - if flag == '-U_FORTIFY_SOURCE'\n> > - has_fortify_define = false\n> > - elif flag.startswith('-D_FORTIFY_SOURCE=')\n> > - has_fortify_define = true\n> > - endif\n> > - endforeach\n> > - if not has_fortify_define\n> > + fortify = cc.get_define('_FORTIFY_SOURCE')\n> \n> TIL about `cc.get_define` - nice cleanup :)\n> \n> I've tested this in CrOS and it works just as well, so in case my\n> review is helpful...\n> \n> Reviewed-by: George Burgess IV \n\nThank you. It's more than helpful, given that this problem mainly\naffects you :-)\n\n> > + if fortify == ''\n> > + message('Adding _FORTIFY_SOURCE')\n> > common_arguments += [\n> > '-D_FORTIFY_SOURCE=2',\n> > ]\n> >\n> > base-commit: 9c5eb9237cf6ae170086f0d4d87a025aa052cc9f","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 3481FC326B\n\tfor ;\n\tTue, 19 Sep 2023 18:38:08 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 6575F6293E;\n\tTue, 19 Sep 2023 20:38:07 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 67F6061DE8\n\tfor ;\n\tTue, 19 Sep 2023 20:38:06 +0200 (CEST)","from pendragon.ideasonboard.com (213-243-189-158.bb.dnainternet.fi\n\t[213.243.189.158])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id EBFAA10FE;\n\tTue, 19 Sep 2023 20:36:29 +0200 (CEST)"],"DKIM-Signature":["v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1695148687;\n\tbh=NB8IwYkyZs2KdzReHTZyQU1BkIq5rlXKj5bY6anUikg=;\n\th=Date:To:References:In-Reply-To:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:\n\tFrom;\n\tb=eeLLbTeSSbKHBM8EGGlOgPEJrx+v8OoWbHaOk32HjDQi4bsYThnpE8IbfGS8oBHdi\n\tISZc8vzIy9WfLMzw+bChx0nYwSFiACF3C+YAa5uVRvlPiWb7xnuFI2g39d/7HVpnx6\n\tNT9IxCCT9ooweNeBOZNLWgwXdPRulqhH2n7WAsvAXOHbZmFoVhvgaN0xs8dbb1PQ0f\n\tVaiPum0qt4kBkaHI624dApaG7N6sefJg8VBs/1jNDIf3gRAUFN945H4cYuPpD2Olyc\n\tOBiYf1SLLd+pMiKjDUdgZJE1oFwM2Lri0Bqu0zW0H7nxmHJRmqZ6HkxurQ7uOJqjyc\n\t8MjMfSQJvBwuQ==","v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1695148590;\n\tbh=NB8IwYkyZs2KdzReHTZyQU1BkIq5rlXKj5bY6anUikg=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=n5bATUi+dvK+xvMWtvvDCGGH4KG7U+BwcXM/2931RGLyC2UbUegnorQ8ULWzpkmQ0\n\t5o2HoC6leN1rebAr6IOros0/FAesPD4ckDm+o6WN0eUBNSOzKIA3c/emTc1obZcrWb\n\tUZRKGXiuRfi7aHezkS8vqy2+oIToTbrFo8cIFOiM="],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"n5bATUi+\"; dkim-atps=neutral","Date":"Tue, 19 Sep 2023 21:38:18 +0300","To":"George Burgess ","Message-ID":"<20230919183818.GB24325@pendragon.ideasonboard.com>","References":"<20230919133943.32035-1-laurent.pinchart@ideasonboard.com>\n\t","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"","Subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","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","From":"Laurent Pinchart via libcamera-devel\n\t","Reply-To":"Laurent Pinchart ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}},{"id":27826,"web_url":"https://patchwork.libcamera.org/comment/27826/","msgid":"","date":"2023-09-21T10:41:52","subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","submitter":{"id":143,"url":"https://patchwork.libcamera.org/api/people/143/","name":"Jacopo Mondi","email":"jacopo.mondi@ideasonboard.com"},"content":"Hi Laurent\n\nOn Tue, Sep 19, 2023 at 11:07:55AM -0600, George Burgess via libcamera-devel wrote:\n> On Tue, Sep 19, 2023 at 7:39 AM Laurent Pinchart\n> wrote:\n> >\n> > Use the compiler.get_define() function to get the value of\n> > _FORTIFY_SOURCE instead of iterating over the cpp_args. This simplies\n> > the code, but also guarantees to return the actual value of\n> > _FORTIFY_SOURCE, even if defined through other means than through the\n> > meson cpp_args.\n> >\n> > Signed-off-by: Laurent Pinchart \n> > ---\n> > meson.build | 14 +++-----------\n> > 1 file changed, 3 insertions(+), 11 deletions(-)\n> >\n> > diff --git a/meson.build b/meson.build\n> > index 2e8342630332..e9a1c7e360ce 100644\n> > --- a/meson.build\n> > +++ b/meson.build\n> > @@ -104,17 +104,9 @@ if cc.get_id() == 'clang'\n> > # result in macro redefinition errors if the user already has a setting for\n> > # `-D_FORTIFY_SOURCE`. Do not enable FORTIFY in either of those cases.\n> > if get_option('optimization') != '0'\n> > - has_fortify_define = false\n> > - # Assume that if the user requests a FORTIFY level in cpp_args, they\n> > - # do the same for c_args.\n> > - foreach flag : get_option('cpp_args')\n> > - if flag == '-U_FORTIFY_SOURCE'\n> > - has_fortify_define = false\n> > - elif flag.startswith('-D_FORTIFY_SOURCE=')\n> > - has_fortify_define = true\n> > - endif\n> > - endforeach\n> > - if not has_fortify_define\n> > + fortify = cc.get_define('_FORTIFY_SOURCE')\n>\n> TIL about `cc.get_define` - nice cleanup :)\n\nsame here!\n\n>\n> I've tested this in CrOS and it works just as well, so in case my\n> review is helpful...\n>\n> Reviewed-by: George Burgess IV \n\nReviewed-by: Jacopo Mondi \n\nThanks\n j\n>\n> Thanks!\n>\n> > + if fortify == ''\n> > + message('Adding _FORTIFY_SOURCE')\n> > common_arguments += [\n> > '-D_FORTIFY_SOURCE=2',\n> > ]\n> >\n> > base-commit: 9c5eb9237cf6ae170086f0d4d87a025aa052cc9f\n> > --\n> > Regards,\n> >\n> > Laurent Pinchart\n> >","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 5791EC326B\n\tfor ;\n\tThu, 21 Sep 2023 10:41:57 +0000 (UTC)","from lancelot.ideasonboard.com (localhost [IPv6:::1])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTP id 1D1F5628D8;\n\tThu, 21 Sep 2023 12:41:57 +0200 (CEST)","from perceval.ideasonboard.com (perceval.ideasonboard.com\n\t[213.167.242.64])\n\tby lancelot.ideasonboard.com (Postfix) with ESMTPS id 7F5CD628D8\n\tfor ;\n\tThu, 21 Sep 2023 12:41:55 +0200 (CEST)","from ideasonboard.com (93-46-82-201.ip106.fastwebnet.it\n\t[93.46.82.201])\n\tby perceval.ideasonboard.com (Postfix) with ESMTPSA id 3754FB75;\n\tThu, 21 Sep 2023 12:40:18 +0200 (CEST)"],"DKIM-Signature":["v=1; a=rsa-sha256; c=relaxed/simple; d=libcamera.org;\n\ts=mail; t=1695292917;\n\tbh=YQDza1EKG0Tm3yH8LzYLcLvoVBWBhgIDrYd+R5wmwFg=;\n\th=Date:To:References:In-Reply-To:Subject:List-Id:List-Unsubscribe:\n\tList-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc:\n\tFrom;\n\tb=hMqRwMZV+pSeUVlyofvXWRrMLtK2iFsf62oEpHigQY551GdblUhXkLPbxbvG5Ns75\n\tHE2PGBumAUvEcf5HqmIgDZxa2ilML2vNXM5zqw5DVM4+tTgSbhxzGMKMkHyl+4zpMV\n\tLgFf8li0WRxevipS14IW6SvRYepqA4ttav1HCpO9M6Tq+1BVnGztCsKmmiL6Plcu7Z\n\tYOdBAnAyEp/TZAL6YGS9Bvs0P/ZF4eNuBJZ9EQMPN5hhkxrE1omyQLX7D8QO13c0VF\n\tdSbouMq18tan3oyk8D2crNany95Z1xuUiyCzLR2IMzoFyad8DnVHrn7/XejnTRkh7W\n\tdVvkO5g60AV6Q==","v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com;\n\ts=mail; t=1695292818;\n\tbh=YQDza1EKG0Tm3yH8LzYLcLvoVBWBhgIDrYd+R5wmwFg=;\n\th=Date:From:To:Cc:Subject:References:In-Reply-To:From;\n\tb=oc9O/yK5GGzU8MTB39TWwbncTmOjnS2wHfbtynv3vuV+MNotuehHDOrqvhD3AiOq7\n\tnJMU0MAWcvhC3FdaOyWeDss8o8RBVmomLuNRTQcXyGwsT9uAlDz2JYCAO1/PVPsugm\n\toB0Eo1/DsqeIY5fyjhD1EdCkE5Nf+jw7j4veRiiQ="],"Authentication-Results":"lancelot.ideasonboard.com; dkim=pass (1024-bit key; \n\tunprotected) header.d=ideasonboard.com\n\theader.i=@ideasonboard.com\n\theader.b=\"oc9O/yK5\"; dkim-atps=neutral","Date":"Thu, 21 Sep 2023 12:41:52 +0200","To":"George Burgess ","Message-ID":"","References":"<20230919133943.32035-1-laurent.pinchart@ideasonboard.com>\n\t","MIME-Version":"1.0","Content-Type":"text/plain; charset=utf-8","Content-Disposition":"inline","Content-Transfer-Encoding":"8bit","In-Reply-To":"","Subject":"Re: [libcamera-devel] [PATCH] meson: Simplify check for\n\t_FORTIFY_SOURCE","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","From":"Jacopo Mondi via libcamera-devel ","Reply-To":"Jacopo Mondi ","Cc":"libcamera-devel@lists.libcamera.org","Errors-To":"libcamera-devel-bounces@lists.libcamera.org","Sender":"\"libcamera-devel\" "}}]