From patchwork Fri Mar 5 23:50:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Alejandro Colomar X-Patchwork-Id: 42345 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 54E06399C024; Fri, 5 Mar 2021 23:51:27 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 54E06399C024 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=sourceware.org; s=default; t=1614988287; bh=braMiz+RmjCWbXkO3k2735BiRuyVPf15QOPaEoS+Fho=; h=To:Subject:Date:In-Reply-To:References:List-Id:List-Unsubscribe: List-Archive:List-Post:List-Help:List-Subscribe:From:Reply-To:Cc: From; b=xn4uXvcE9Id2glPaA3AguXSMKGqPLjsYoXUd/7P3LURHRHBTUxvARMEJVDjKPxcfR xNFsehc3k/ZSMORjptM7Z4SEeOadKj0oxcay3EUh1ChIKrCrjfqR74DM6CrT5wRwxe A87xhMTGH1X51wpXLuXpyvIuARdZZFq26J0TKGew= X-Original-To: libc-alpha@sourceware.org Delivered-To: libc-alpha@sourceware.org Received: from mail-wm1-x334.google.com (mail-wm1-x334.google.com [IPv6:2a00:1450:4864:20::334]) by sourceware.org (Postfix) with ESMTPS id CC0B7384240B for ; Fri, 5 Mar 2021 23:51:23 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org CC0B7384240B Received: by mail-wm1-x334.google.com with SMTP id i9so2617349wml.0 for ; Fri, 05 Mar 2021 15:51:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=braMiz+RmjCWbXkO3k2735BiRuyVPf15QOPaEoS+Fho=; b=HosM3hWvqcNzUrVTxbWZkdhPbdsb0LGdDruyWsz6gcItnLMByu2iJeJodRJUFRVI+E 9sEvPIi27U0YHBY8t92K2DEhw5RfjKQR5CcFctQvGqa2hA8Ed3VRDjkXOdZF/bfa9sqS UTpu/cQTd5jekkJtMCjm/9jwRtfw/7HNb/O6LSjReDwOu7Vpl10xF16n18bJMA15AmQs MEOaqcEMIbYqvXwnAoxqRp0UAWFfpSNBEDCTt3yuTlYuWmzAvgO0Vv9OgUGbhOd953Oe /QifAK6wQbgBCl5xEUzbMfXjW6QnGvtRaJ6AZer9EQ2xPIBdTIuwwI1IWdPrurybZCJL JzWA== X-Gm-Message-State: AOAM531fMAZF+xuUFrYenVQi0989CROse5EqGatJQt9rT8qbzMWxDXlY 5jOzR+4QHgelO6jambvxw1ZGtT7swc0akQ== X-Google-Smtp-Source: ABdhPJzdr3BunYszFDoiRGIJOZ0gyejPrAy1obzsPz2fvOO2a/xKIKOStDvY2W/L0iajxWUGesrwig== X-Received: by 2002:a05:600c:2204:: with SMTP id z4mr11423399wml.31.1614988282973; Fri, 05 Mar 2021 15:51:22 -0800 (PST) Received: from localhost.localdomain ([170.253.51.130]) by smtp.googlemail.com with ESMTPSA id f7sm7219835wrm.36.2021.03.05.15.51.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 05 Mar 2021 15:51:22 -0800 (PST) To: mtk.manpages@gmail.com Subject: [PATCH 09/22] malloc_hook.3: SYNOPSIS: Use 'volatile' in prototypes Date: Sat, 6 Mar 2021 00:50:53 +0100 Message-Id: <20210305235105.177359-10-alx.manpages@gmail.com> X-Mailer: git-send-email 2.30.1.721.g45526154a5 In-Reply-To: <20210305235105.177359-1-alx.manpages@gmail.com> References: <20210305235105.177359-1-alx.manpages@gmail.com> MIME-Version: 1.0 X-Spam-Status: No, score=-12.2 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=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: libc-alpha@sourceware.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Libc-alpha mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-Patchwork-Original-From: Alejandro Colomar via Libc-alpha From: Alejandro Colomar Reply-To: Alejandro Colomar Cc: Alejandro Colomar , linux-man@vger.kernel.org, libc-alpha@sourceware.org Errors-To: libc-alpha-bounces@sourceware.org Sender: "Libc-alpha" glibc uses 'volatile' in __malloc_hook, __realloc_hook, __memalign_hook, __free_hook, and __after_morecore_hook. Let's use it here too. .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\b__malloc_hook\b.*?;'; malloc/malloc.h:168: extern void *(*__MALLOC_HOOK_VOLATILE __malloc_hook)(size_t __size, const void *) __MALLOC_DEPRECATED; .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\b__realloc_hook\b.*?;'; malloc/malloc.h:171: extern void *(*__MALLOC_HOOK_VOLATILE __realloc_hook)(void *__ptr, size_t __size, const void *) __MALLOC_DEPRECATED; .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\b__memalign_hook\b.*?;'; malloc/malloc.h:175: extern void *(*__MALLOC_HOOK_VOLATILE __memalign_hook)(size_t __alignment, size_t __size, const void *) __MALLOC_DEPRECATED; .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\b__free_hook\b.*?;'; malloc/malloc.h:165: extern void (*__MALLOC_HOOK_VOLATILE __free_hook) (void *__ptr, const void *) __MALLOC_DEPRECATED; .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\*\w*\s*\b__malloc_initialize_hook\b.*?;'; malloc/malloc-hooks.h:22: void (*__malloc_initialize_hook) (void); .../glibc$ find * -type f \ |grep '\.h$' \ |xargs pcregrep -Mn '(?s)\*\w*\s*\b__after_morecore_hook\b.*?;'; malloc/malloc.h:179: extern void (*__MALLOC_HOOK_VOLATILE __after_morecore_hook) (void) __MALLOC_DEPRECATED; .../glibc$ Signed-off-by: Alejandro Colomar --- man3/malloc_hook.3 | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/man3/malloc_hook.3 b/man3/malloc_hook.3 index 7f1e35043..74c493c83 100644 --- a/man3/malloc_hook.3 +++ b/man3/malloc_hook.3 @@ -16,19 +16,19 @@ __after_morecore_hook \- malloc debugging variables .nf .B "#include " .PP -.BI "void *(*__malloc_hook)(size_t " size ", const void *" caller ); +.BI "void *(*volatile __malloc_hook)(size_t " size ", const void *" caller ); .PP -.BI "void *(*__realloc_hook)(void *" ptr ", size_t " size \ +.BI "void *(*volatile __realloc_hook)(void *" ptr ", size_t " size \ ", const void *" caller ); .PP -.BI "void *(*__memalign_hook)(size_t " alignment ", size_t " size , +.BI "void *(*volatile __memalign_hook)(size_t " alignment ", size_t " size , .BI " const void *" caller ); .PP -.BI "void (*__free_hook)(void *" ptr ", const void *" caller ); +.BI "void (*volatile __free_hook)(void *" ptr ", const void *" caller ); .PP .B "void (*__malloc_initialize_hook)(void);" .PP -.B "void (*__after_morecore_hook)(void);" +.B "void (*volatile __after_morecore_hook)(void);" .fi .SH DESCRIPTION The GNU C library lets you modify the behavior of