From patchwork Sat Oct 17 00:12:28 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Peter Collingbourne X-Patchwork-Id: 11842477 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-12.7 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_ADSP_CUSTOM_MED,DKIM_SIGNED,DKIM_VALID,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 38CE8C433E7 for ; Sat, 17 Oct 2020 00:15:04 +0000 (UTC) Received: from merlin.infradead.org (merlin.infradead.org [205.233.59.134]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ABD9522203 for ; Sat, 17 Oct 2020 00:15:03 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=lists.infradead.org header.i=@lists.infradead.org header.b="YXjDxRvy"; dkim=fail reason="signature verification failed" (2048-bit key) header.d=google.com header.i=@google.com header.b="WIPsWPDC" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ABD9522203 Authentication-Results: mail.kernel.org; dmarc=fail (p=reject dis=none) header.from=google.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=merlin.20170209; h=Sender:Content-Transfer-Encoding: Content-Type:Cc:List-Subscribe:List-Help:List-Post:List-Archive: List-Unsubscribe:List-Id:To:From:Subject:References:Mime-Version:Message-Id: In-Reply-To:Date:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=TnLQMA3njvYJfR4/uzT/vuZ0a3vmWVb5/PsGmRkN36s=; b=YXjDxRvykhG5A4WeWoBYwJY8j CyD9r5L3g4dC34N90D6yHwQ+4NXqUv3x6ypSJkJbq2DpjUVmfBDC4zXLtLKe4dEGA37YW3y8x7f2t Ggnp2O2fNbcDpoG96RK14v1UeGTfs/3DuJgr9OYpbSCLC1E46KSF3qY2TpquZGpnUnRBZDB/vtZcr BunM3jBryYbHIEPNWlff8c18tZwmZlLPCr6mtuEIzkZKoR6z2NNBEg4HI45eN5gz+U1ar1THqdapB EmQk3WAb/3xZCbdGtP+Zo5s4aP7/svrZ7xH22/fW00nF6m8xP5teSQiy3wq0h9iaCKzKp6co22PyI bQqNmjuYA==; Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTZqN-0001zZ-C4; Sat, 17 Oct 2020 00:13:07 +0000 Received: from mail-qk1-x74a.google.com ([2607:f8b0:4864:20::74a]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1kTZqC-0001wX-RJ for linux-arm-kernel@lists.infradead.org; Sat, 17 Oct 2020 00:12:58 +0000 Received: by mail-qk1-x74a.google.com with SMTP id i10so2669434qkh.1 for ; Fri, 16 Oct 2020 17:12:52 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=sender:date:in-reply-to:message-id:mime-version:references:subject :from:to:cc; bh=5R8W9YmhqufRIVc/cZaJmO6zkPKFkUJCPt2CqAo4Gmo=; b=WIPsWPDCWSl13SJUVuQCRxQHHgUBO3YQg3BQEqV4U+MDPYr21XqNQ7mwpX5OA5Cr0k DC7tuNsHaZ+bZSECdK4G3frzWMy2KnYjgFrELgk9uUvzqfT17YNESOzaVWX39r9n+HO5 fCskpURw/CNV41b73k8AbRcY8midjeaHa+NwQiOL0ZVclrxcfcGYDLYHJiPirK/SwsIy VFAds3rQ6koMmlQqQZj9jqEx7OuhES5VPXXLSlIFrtIK5LCddQbReQoN6Fw+PVcDMvJ5 6Q/atFR9dl5pmhCKiqfG2+lOP7KQQymtZw7JofIXSIdG1i7AtkGd06pN5vUUFE3aKyzQ sq5A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:sender:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=5R8W9YmhqufRIVc/cZaJmO6zkPKFkUJCPt2CqAo4Gmo=; b=p9hPacW96JsnIviHlz+BhnstbkDGeYiNUclWA4vduw2vHbr2THFgQoa3KP3kr3zIjn +23UDP0egj3pQfacqnEmSqLWhLzcaZ7iBS0XufonxqXRDgX7Zxzf8pxk9P6SZ9K/x1f7 tDb/lyUjshzqQ9asJ7i/tnTETVRODzz+iZXfIfQjuAEiX301RPYZVZ2Im8/HFyEW8kqW FlCvNmbksfOCeVdyM4Wdt/3xa36SMcfd3zWCOFNjAqhFGZJrVsbHOWLFzbGu+VvkHCoF gwhhu9PHfvRWV6A3YwhsEFQ76Jimup0EB9KoVXuWXCaopEMsxD9/etxq+fKe8SZ915pX weNw== X-Gm-Message-State: AOAM533OpJLycOQSTWiuAISPiGf38Lf682GyuE7h8Up+s2SSUTGw2VYt ZTUSVCvphP46G5+lkXPQv5TzBrg= X-Google-Smtp-Source: ABdhPJzAYP0n87mDgeahaAzkiXLV9GN7MkJch7LTvgZpBHpozfc9hbSTbTLV7K13q6YX+iie+R1pAVM= X-Received: from pcc-desktop.svl.corp.google.com ([2620:15c:2ce:0:7220:84ff:fe09:385a]) (user=pcc job=sendgmr) by 2002:ad4:5143:: with SMTP id g3mr7003994qvq.2.1602893570661; Fri, 16 Oct 2020 17:12:50 -0700 (PDT) Date: Fri, 16 Oct 2020 17:12:28 -0700 In-Reply-To: Message-Id: <9f610ad69ca2f4935f4589c404858a004e913fe2.1602892799.git.pcc@google.com> Mime-Version: 1.0 References: X-Mailer: git-send-email 2.29.0.rc1.297.gfa9743e501-goog Subject: [PATCH v12 3/8] arch: move SA_* definitions to generic headers From: Peter Collingbourne To: Catalin Marinas , Evgenii Stepanov , Kostya Serebryany , Vincenzo Frascino , Dave Martin , Will Deacon , Oleg Nesterov , "Eric W. Biederman" , "James E.J. Bottomley" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20201016_201256_892431_3559E9BC X-CRM114-Status: GOOD ( 18.07 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Andrey Konovalov , Helge Deller , Kevin Brodsky , Geert Uytterhoeven , linux-api@vger.kernel.org, David Spickett , Peter Collingbourne , Linux ARM , Richard Henderson Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Most architectures with the exception of alpha, mips, parisc and sparc use the same values for these flags. Move their definitions into asm-generic/signal-defs.h and allow the architectures with non-standard values to override them. Also, document the non-standard flag values in order to make it easier to add new generic flags in the future. A consequence of this change is that on powerpc and x86, the constants' values aside from SA_RESETHAND change signedness from unsigned to signed. This is not expected to impact realistic use of these constants. In particular the typical use of the constants where they are or'ed together and assigned to sa_flags (or another int variable) would not be affected. Signed-off-by: Peter Collingbourne Acked-by: Geert Uytterhoeven Link: https://linux-review.googlesource.com/id/Ia3849f18b8009bf41faca374e701cdca36974528 Reviewed-by: Dave Martin --- v11: - tweak the commit message to point out the change from unsigned to signed v10: - move the comments around and add one for SA_SIGINFO arch/alpha/include/uapi/asm/signal.h | 14 -------- arch/arm/include/uapi/asm/signal.h | 28 ++------------- arch/h8300/include/uapi/asm/signal.h | 24 ------------- arch/ia64/include/uapi/asm/signal.h | 24 ------------- arch/m68k/include/uapi/asm/signal.h | 24 ------------- arch/mips/include/uapi/asm/signal.h | 12 ------- arch/parisc/include/uapi/asm/signal.h | 13 ------- arch/powerpc/include/uapi/asm/signal.h | 24 ------------- arch/s390/include/uapi/asm/signal.h | 24 ------------- arch/sparc/include/uapi/asm/signal.h | 4 +-- arch/x86/include/uapi/asm/signal.h | 24 ------------- arch/xtensa/include/uapi/asm/signal.h | 24 ------------- include/uapi/asm-generic/signal-defs.h | 47 ++++++++++++++++++++++++++ include/uapi/asm-generic/signal.h | 29 ---------------- 14 files changed, 51 insertions(+), 264 deletions(-) diff --git a/arch/alpha/include/uapi/asm/signal.h b/arch/alpha/include/uapi/asm/signal.h index 74c750bf1c1a..a69dd8d080a8 100644 --- a/arch/alpha/include/uapi/asm/signal.h +++ b/arch/alpha/include/uapi/asm/signal.h @@ -60,20 +60,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ - #define SA_ONSTACK 0x00000001 #define SA_RESTART 0x00000002 #define SA_NOCLDSTOP 0x00000004 diff --git a/arch/arm/include/uapi/asm/signal.h b/arch/arm/include/uapi/asm/signal.h index 9b4185ba4f8a..7727f0984d26 100644 --- a/arch/arm/include/uapi/asm/signal.h +++ b/arch/arm/include/uapi/asm/signal.h @@ -60,33 +60,11 @@ typedef unsigned long sigset_t; #define SIGSWI 32 /* - * SA_FLAGS values: - * - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_SIGINFO deliver the signal with SIGINFO structs - * SA_THIRTYTWO delivers the signal in 32-bit mode, even if the task - * is running in 26-bit. - * SA_ONSTACK allows alternate signal stacks (see sigaltstack(2)). - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NODEFER prevents the current signal from being masked in the handler. - * SA_RESETHAND clears the handler when the signal is delivered. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. + * SA_THIRTYTWO historically meant deliver the signal in 32-bit mode, even if + * the task is running in 26-bit. But since the kernel no longer supports + * 26-bit mode, the flag has no effect. */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 #define SA_THIRTYTWO 0x02000000 -#define SA_RESTORER 0x04000000 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 diff --git a/arch/h8300/include/uapi/asm/signal.h b/arch/h8300/include/uapi/asm/signal.h index e15521037348..2cd0dce2b6a6 100644 --- a/arch/h8300/include/uapi/asm/signal.h +++ b/arch/h8300/include/uapi/asm/signal.h @@ -57,30 +57,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000 #define MINSIGSTKSZ 2048 diff --git a/arch/ia64/include/uapi/asm/signal.h b/arch/ia64/include/uapi/asm/signal.h index aa98ff1b9e22..38166a88e4c9 100644 --- a/arch/ia64/include/uapi/asm/signal.h +++ b/arch/ia64/include/uapi/asm/signal.h @@ -53,30 +53,6 @@ #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000 /* diff --git a/arch/m68k/include/uapi/asm/signal.h b/arch/m68k/include/uapi/asm/signal.h index 915cc755a184..4619291df601 100644 --- a/arch/m68k/include/uapi/asm/signal.h +++ b/arch/m68k/include/uapi/asm/signal.h @@ -57,30 +57,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192 diff --git a/arch/mips/include/uapi/asm/signal.h b/arch/mips/include/uapi/asm/signal.h index 53104b10aae2..e6c78a15cb2f 100644 --- a/arch/mips/include/uapi/asm/signal.h +++ b/arch/mips/include/uapi/asm/signal.h @@ -62,18 +62,6 @@ typedef unsigned long old_sigset_t; /* at least 32 bits */ #define SIGRTMAX _NSIG /* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - * * SA_RESTORER used to be defined as 0x04000000 but only the O32 ABI ever * supported its use and no libc was using it, so the entire sa-restorer * functionality was removed with lmo commit 39bffc12c3580ab for 2.5.48 diff --git a/arch/parisc/include/uapi/asm/signal.h b/arch/parisc/include/uapi/asm/signal.h index 9e6f87bc8a73..e5a2657477ac 100644 --- a/arch/parisc/include/uapi/asm/signal.h +++ b/arch/parisc/include/uapi/asm/signal.h @@ -41,19 +41,6 @@ #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ #define SA_ONSTACK 0x00000001 #define SA_RESETHAND 0x00000004 #define SA_NOCLDSTOP 0x00000008 diff --git a/arch/powerpc/include/uapi/asm/signal.h b/arch/powerpc/include/uapi/asm/signal.h index 85b0a7aa43e7..04873dd311c2 100644 --- a/arch/powerpc/include/uapi/asm/signal.h +++ b/arch/powerpc/include/uapi/asm/signal.h @@ -60,30 +60,6 @@ typedef struct { #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK is not currently supported, but will allow sigaltstack(2). - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001U -#define SA_NOCLDWAIT 0x00000002U -#define SA_SIGINFO 0x00000004U -#define SA_ONSTACK 0x08000000U -#define SA_RESTART 0x10000000U -#define SA_NODEFER 0x40000000U -#define SA_RESETHAND 0x80000000U - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000U #define MINSIGSTKSZ 2048 diff --git a/arch/s390/include/uapi/asm/signal.h b/arch/s390/include/uapi/asm/signal.h index 9a14a611ed82..0189f326aac5 100644 --- a/arch/s390/include/uapi/asm/signal.h +++ b/arch/s390/include/uapi/asm/signal.h @@ -65,30 +65,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000 #define MINSIGSTKSZ 2048 diff --git a/arch/sparc/include/uapi/asm/signal.h b/arch/sparc/include/uapi/asm/signal.h index ff9505923b9a..53758d53ac0e 100644 --- a/arch/sparc/include/uapi/asm/signal.h +++ b/arch/sparc/include/uapi/asm/signal.h @@ -137,13 +137,11 @@ struct sigstack { #define SA_STACK _SV_SSTACK #define SA_ONSTACK _SV_SSTACK #define SA_RESTART _SV_INTR -#define SA_ONESHOT _SV_RESET +#define SA_RESETHAND _SV_RESET #define SA_NODEFER 0x20u #define SA_NOCLDWAIT 0x100u #define SA_SIGINFO 0x200u -#define SA_NOMASK SA_NODEFER - #define SIG_BLOCK 0x01 /* for blocking signals */ #define SIG_UNBLOCK 0x02 /* for unblocking signals */ #define SIG_SETMASK 0x04 /* for setting the signal mask */ diff --git a/arch/x86/include/uapi/asm/signal.h b/arch/x86/include/uapi/asm/signal.h index e5745d593dc7..164a22a72984 100644 --- a/arch/x86/include/uapi/asm/signal.h +++ b/arch/x86/include/uapi/asm/signal.h @@ -62,30 +62,6 @@ typedef unsigned long sigset_t; #define SIGRTMIN 32 #define SIGRTMAX _NSIG -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001u -#define SA_NOCLDWAIT 0x00000002u -#define SA_SIGINFO 0x00000004u -#define SA_ONSTACK 0x08000000u -#define SA_RESTART 0x10000000u -#define SA_NODEFER 0x40000000u -#define SA_RESETHAND 0x80000000u - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000 #define MINSIGSTKSZ 2048 diff --git a/arch/xtensa/include/uapi/asm/signal.h b/arch/xtensa/include/uapi/asm/signal.h index 005dec5bfde4..79ddabaa4e5d 100644 --- a/arch/xtensa/include/uapi/asm/signal.h +++ b/arch/xtensa/include/uapi/asm/signal.h @@ -72,30 +72,6 @@ typedef struct { #define SIGRTMIN 32 #define SIGRTMAX (_NSIG-1) -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 /* not supported yet */ -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - #define SA_RESTORER 0x04000000 #define MINSIGSTKSZ 2048 diff --git a/include/uapi/asm-generic/signal-defs.h b/include/uapi/asm-generic/signal-defs.h index e9304c95ceea..493953fe319b 100644 --- a/include/uapi/asm-generic/signal-defs.h +++ b/include/uapi/asm-generic/signal-defs.h @@ -4,6 +4,53 @@ #include +/* + * SA_FLAGS values: + * + * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. + * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. + * SA_SIGINFO delivers the signal with SIGINFO structs. + * SA_ONSTACK indicates that a registered stack_t will be used. + * SA_RESTART flag to get restarting signals (which were the default long ago) + * SA_NODEFER prevents the current signal from being masked in the handler. + * SA_RESETHAND clears the handler when the signal is delivered. + * + * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single + * Unix names RESETHAND and NODEFER respectively. + * + * The following bits are used in architecture-specific SA_* definitions and + * should be avoided for new generic flags: 3, 4, 5, 6, 7, 8, 9, 16, 24, 25, 26. + */ +#ifndef SA_NOCLDSTOP +#define SA_NOCLDSTOP 0x00000001 +#endif +#ifndef SA_NOCLDWAIT +#define SA_NOCLDWAIT 0x00000002 +#endif +#ifndef SA_SIGINFO +#define SA_SIGINFO 0x00000004 +#endif +#ifndef SA_ONSTACK +#define SA_ONSTACK 0x08000000 +#endif +#ifndef SA_RESTART +#define SA_RESTART 0x10000000 +#endif +#ifndef SA_NODEFER +#define SA_NODEFER 0x40000000 +#endif +#ifndef SA_RESETHAND +#define SA_RESETHAND 0x80000000 +#endif + +#define SA_NOMASK SA_NODEFER +#define SA_ONESHOT SA_RESETHAND + +/* + * New architectures should not define the obsolete + * SA_RESTORER 0x04000000 + */ + #ifndef SIG_BLOCK #define SIG_BLOCK 0 /* for blocking signals */ #endif diff --git a/include/uapi/asm-generic/signal.h b/include/uapi/asm-generic/signal.h index 5c716a952cbe..f634822906e4 100644 --- a/include/uapi/asm-generic/signal.h +++ b/include/uapi/asm-generic/signal.h @@ -52,35 +52,6 @@ #define SIGRTMAX _NSIG #endif -/* - * SA_FLAGS values: - * - * SA_ONSTACK indicates that a registered stack_t will be used. - * SA_RESTART flag to get restarting signals (which were the default long ago) - * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop. - * SA_RESETHAND clears the handler when the signal is delivered. - * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies. - * SA_NODEFER prevents the current signal from being masked in the handler. - * - * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single - * Unix names RESETHAND and NODEFER respectively. - */ -#define SA_NOCLDSTOP 0x00000001 -#define SA_NOCLDWAIT 0x00000002 -#define SA_SIGINFO 0x00000004 -#define SA_ONSTACK 0x08000000 -#define SA_RESTART 0x10000000 -#define SA_NODEFER 0x40000000 -#define SA_RESETHAND 0x80000000 - -#define SA_NOMASK SA_NODEFER -#define SA_ONESHOT SA_RESETHAND - -/* - * New architectures should not define the obsolete - * SA_RESTORER 0x04000000 - */ - #if !defined MINSIGSTKSZ || !defined SIGSTKSZ #define MINSIGSTKSZ 2048 #define SIGSTKSZ 8192