From patchwork Tue Dec 17 18:38:26 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "H.J. Lu" X-Patchwork-Id: 103298 Return-Path: X-Original-To: patchwork@sourceware.org Delivered-To: patchwork@sourceware.org Received: from server2.sourceware.org (localhost [IPv6:::1]) by sourceware.org (Postfix) with ESMTP id 6EE393858D20 for ; Tue, 17 Dec 2024 18:39:12 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 6EE393858D20 Authentication-Results: sourceware.org; dkim=pass (2048-bit key, unprotected) header.d=gmail.com header.i=@gmail.com header.a=rsa-sha256 header.s=20230601 header.b=VNhFGmGj X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-il1-x135.google.com (mail-il1-x135.google.com [IPv6:2607:f8b0:4864:20::135]) by sourceware.org (Postfix) with ESMTPS id 0DC9A3858D20 for ; Tue, 17 Dec 2024 18:38:32 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.4.2 sourceware.org 0DC9A3858D20 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=gmail.com ARC-Filter: OpenARC Filter v1.0.0 sourceware.org 0DC9A3858D20 Authentication-Results: server2.sourceware.org; arc=none smtp.remote-ip=2607:f8b0:4864:20::135 ARC-Seal: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1734460712; cv=none; b=qRbUW7VtC3SbSwF7o4Btup/UsojojaacUpnR3et7jR7kvCAv3nHoHBMIovese7JUIPhwNJP+5h+7CmXTseQJmLRGKs0+r1Yit4DcLhr3fLEbRqrIlhBACmevZZeg70jUtaN4i6LUDOSTevqAvP57XZ5dkvfhzbFrprCKZmRimEA= ARC-Message-Signature: i=1; a=rsa-sha256; d=sourceware.org; s=key; t=1734460712; c=relaxed/simple; bh=kckWtn8sOHAILIxNN6j74SxarnkToCvpxEaem8WVfVM=; h=DKIM-Signature:From:To:Subject:Date:Message-ID:MIME-Version; b=X4KsHS3h0MFvnWeTcnpUzjcBygQV88+YMwAe/zAp53FADGiwtd8+lPIvHERKuq00Gc36EzKm6HpBGXkBc4gqyOJa75TT7LsgZYcJ5t6vlcueg75Gf1Frzk6FbWidXvUuX/izcciWFgY+rC7fCuGnXSKlp7w5WuljhCyFgV1KZNg= ARC-Authentication-Results: i=1; server2.sourceware.org DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 0DC9A3858D20 Received: by mail-il1-x135.google.com with SMTP id e9e14a558f8ab-3a7dd54af4bso20174465ab.2 for ; Tue, 17 Dec 2024 10:38:32 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1734460711; x=1735065511; darn=sourceware.org; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:from:to:cc:subject:date:message-id:reply-to; bh=hwN/Cw8ABWJMw98ixFiiWB3ua90+y41AAt+yw/K5a8g=; b=VNhFGmGj3SvrMV5OoT7cxuGBwuRe8uYwCBuha8OqN56mZdDEIpfAKMHT4svPowqt7h Jm07xwvia+QDxLQdqbdXSa8gnpC2qQAoQBC92fqSZugqRMS4HYA/N43U9KRMF+wAdrJS s+isFX+Zugoq0QvFO/GTqdTbZlTMkM1Q8sMqxzBV2bmJPedaO2fR3BTXlMt0aPcr+Hf5 z3C/aOZruCSEcJluk3vAGjE5an34wGYqkHrB96aWJIBw+w+1c0KFzUX4vueT4CgxfXXr HV5kBhO9sk96mMnZT0iWliLr/oITcn9zTFrSJJ2Eod8HylXcCb6AZJaUfE0qgey9UoYE a4pQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1734460711; x=1735065511; h=content-transfer-encoding:mime-version:message-id:date:subject:cc :to:from:x-gm-message-state:from:to:cc:subject:date:message-id :reply-to; bh=hwN/Cw8ABWJMw98ixFiiWB3ua90+y41AAt+yw/K5a8g=; b=eBKfdSGQbBsh0qs/VudH6R4ZF/wtW4HcvgFAEgz4q2L9t7nwJ9Q8+wZ4PS4RGygCxk q/42YJwdxwkRkDZf2stEolo2GX3BEzU0+mrTvj2LshJ5G9xWLQ2XQnkxfepU17TNX3BS T32joJr/y8BDrZenwW3Tf8aI1/vWlJLB7WEkCroV3597CguYq9PtsW12fLXBPL5r2R2n U71Pn9CMC6ikmAdWpHg8Uyy8gAnV4O//ccpf5+N+x4dSNSmy82EwNYrcEOgLfu942zmE ttikov6g39mh2quRUkzD4aFNGV08u+hV2EpK+Pq9sN5pAoHknQqdDO07NUEEAYCRI9zS LLdg== X-Gm-Message-State: AOJu0YxNNtqaMTL8IoPkyf6kiD0Nrb6NvIxq5sEGhXAQZ8qyxKyQkZfr y+eY/UHJRZfnivzOiDy9LRITRkvfcJhu0W5DUqfXbAnmVj60L53omv38khOy9SijcQEG X-Gm-Gg: ASbGnctsGwNnYm3tRvRs/bEdui7DdTx7xDL6XpZxvoABAyiJ7HmEW9bMP/fNNQng179 jxPfOsKn6Udb5NRlVCxjJBDhT9fvAza9nDGvAsdETQo33U145uF3bUeTya8J5OvWm8jXOg/3Yeb O4nbTJcPJOmHNQhVSKztMIv99eW5/9JwDINQuvEwasRzjNy3ar81OydKO57zvXilW8L+kskdvzw 7lmaNi2/0tLNRidhN4kViaJeyzqKGzr7HiqqhS3qoDgOGKMwB/Bo/PTrfJOcWcIjRJJ421Bj5HL 3E2SailT0J9vGMFWUXEYoqTQG8vU3oXxVtMraWAHaL0= X-Google-Smtp-Source: AGHT+IH3484YfveUbfbT5wY5w9yVfVHdulvud3lnFwsT6BtZIq9CY8EHC9Pch7xS8Kwlz+4AiCIv7w== X-Received: by 2002:a05:6e02:3dc9:b0:3a7:c5b1:a55f with SMTP id e9e14a558f8ab-3bdbb35827cmr977275ab.0.1734460711275; Tue, 17 Dec 2024 10:38:31 -0800 (PST) Received: from gnu-tgl-3.localdomain ([172.58.160.9]) by smtp.gmail.com with ESMTPSA id e9e14a558f8ab-3b248cb5d6asm22245275ab.33.2024.12.17.10.38.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Dec 2024 10:38:31 -0800 (PST) Received: from gnu-tgl-3.. (localhost [IPv6:::1]) by gnu-tgl-3.localdomain (Postfix) with ESMTP id CEEA0C0043; Wed, 18 Dec 2024 02:38:26 +0800 (CST) From: "H.J. Lu" To: libc-alpha@sourceware.org Cc: sam@gentoo.org Subject: [PATCH v2] Hide memset/bzero from compiler Date: Wed, 18 Dec 2024 02:38:26 +0800 Message-ID: <20241217183826.2607432-1-hjl.tools@gmail.com> X-Mailer: git-send-email 2.47.1 MIME-Version: 1.0 X-Spam-Status: No, score=-3019.7 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, GIT_PATCH_0, RCVD_IN_DNSWL_NONE, SPF_HELO_NONE, SPF_PASS, TXREP autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.30 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libc-alpha-bounces~patchwork=sourceware.org@sourceware.org Hide memset/bzero from compiler to silence Clang error: ./tester.c:1345:29: error: 'size' argument to memset is '0'; did you mean to transpose the last two arguments? [-Werror,-Wmemset-transposed-args] 1345 | (void) memset(one+2, 'y', 0); | ^ ./tester.c:1345:29: note: parenthesize the third argument to silence ./tester.c:1432:16: error: 'size' argument to bzero is '0' [-Werror,-Wsuspicious-bzero] 1432 | bzero(one+2, 0); | ^ ./tester.c:1432:16: note: parenthesize the second argument to silence Signed-off-by: H.J. Lu --- string/tester.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/string/tester.c b/string/tester.c index ee96747280..3e3660777e 100644 --- a/string/tester.c +++ b/string/tester.c @@ -50,6 +50,15 @@ DIAG_IGNORE_NEEDS_COMMENT (11, "-Wstringop-overread"); #include #include +static __typeof (bzero) * volatile bzero_indirect = bzero; +static __typeof (memset) * volatile memset_indirect = memset; + +#undef bzero +#undef memset + +#define bzero bzero_indirect +#define memset memset_indirect + /* This file tests a range of corner cases of string functions, including cases where truncation occurs or where sizes specified are larger than the actual buffers, which result in various