From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on dcvr.yhbt.net X-Spam-Level: X-Spam-ASN: AS31976 209.132.180.0/23 X-Spam-Status: No, score=-4.0 required=3.0 tests=AWL,BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED,RCVD_IN_MSPIKE_H3, RCVD_IN_MSPIKE_WL,SPF_HELO_PASS,SPF_PASS shortcircuit=no autolearn=ham autolearn_force=no version=3.4.2 Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dcvr.yhbt.net (Postfix) with ESMTPS id 5CF301F45E for ; Mon, 10 Feb 2020 19:21:56 +0000 (UTC) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=iQ/ShY9LQ4W9f1HYIn+hG76Lyy/uqWR ckOb3IT4AQvw0isyW2Ub+g7ly0lhLn+lBbAZQDZJe/1Rr0UFkLI+1CM4Z5mY+ueU z51KdVycUPqB2u44AtDuEUnqZTsg+yJLm71NTCx4zMOJJlXJalOCoSzJ10LuEBK2 G7efsTS/JY0I= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:subject:date:message-id:in-reply-to :references; s=default; bh=HlVaR8TLfslcPKNR1vqU2J/MfWk=; b=J7cQu +lTOWRilFUULkZz0qJC4w/yU7EoCkbQ+GNpZ4uJrNxMKAG2i4AheR7/TVcejHFwn MzYKrgkrXwhP7gKxSNpA3Qn5n5SC9alcZfLHhDZDGHIAFKRHiLsyDuhc+pGTkfKf N53pCSPYl3+7H8hdUXxOJfHfdljYpCFjstRSGQ= Received: (qmail 100128 invoked by alias); 10 Feb 2020 19:20:56 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Received: (qmail 100000 invoked by uid 89); 10 Feb 2020 19:20:55 -0000 Authentication-Results: sourceware.org; auth=none X-HELO: mail-qk1-f193.google.com DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; h=from:to:subject:date:message-id:in-reply-to:references; bh=gcRlSIUfDZNzDXLhQXEXcrQpCXiBWs/Mt0pzBbJG87Y=; b=qzJpZrbrfPCcI97bq1Yw+GTMUtCbxBq/zx7g3ogF7AzS+4/+R7o4XE7Mf3RLpzD6ui n5q3//nnKjCg/JNkMNdCYkfFEs9Bomo2jtH01KtbKkgQtPF8X6fwKJe00rHv6b9BzpzN JlNy6iuhVFt61OR/35LvnxRbKt8OVSek8FQg1qS23R13L0lgwtp3kCljEsSeyg2auOF2 lv0mgjwDiq4FlD27Bgd5gG/QxninP7aLfsRYcyHm0zlLJK328hezSLWltLwgh81T3y/m P0OhfFk5AIrhyVibOHUV+UPv7UmhbhgjnJ/jDnN5+AYuhp59bu4WRhUHKUHKyz5iIrIz cbUw== From: Adhemerval Zanella To: libc-alpha@sourceware.org Subject: [PATCH 08/15] nios2: Use Linux kABI for syscall return Date: Mon, 10 Feb 2020 16:20:31 -0300 Message-Id: <20200210192038.23588-8-adhemerval.zanella@linaro.org> In-Reply-To: <20200210192038.23588-1-adhemerval.zanella@linaro.org> References: <20200210192038.23588-1-adhemerval.zanella@linaro.org> It changes the nios INTERNAL_SYSCALL_RAW macro to return a negative value instead of 'r2' register value on 'err' macro argument. The macro INTERNAL_SYSCALL_DECL is no longer required, and the INTERNAL_SYSCALL_ERROR_P follows the other Linux kABIS. Checked with a build against nios2-linux-gnu. --- sysdeps/unix/sysv/linux/nios2/sysdep.h | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/sysdeps/unix/sysv/linux/nios2/sysdep.h b/sysdeps/unix/sysv/linux/nios2/sysdep.h index b02730bd23..eab888df32 100644 --- a/sysdeps/unix/sysv/linux/nios2/sysdep.h +++ b/sysdeps/unix/sysv/linux/nios2/sysdep.h @@ -157,13 +157,14 @@ (int) result_var; }) #undef INTERNAL_SYSCALL_DECL -#define INTERNAL_SYSCALL_DECL(err) unsigned int err __attribute__((unused)) +#define INTERNAL_SYSCALL_DECL(err) do { } while (0) #undef INTERNAL_SYSCALL_ERROR_P -#define INTERNAL_SYSCALL_ERROR_P(val, err) ((void) (val), (unsigned int) (err)) +#define INTERNAL_SYSCALL_ERROR_P(val, err) \ + ((unsigned long) (val) >= (unsigned long) -4095) #undef INTERNAL_SYSCALL_ERRNO -#define INTERNAL_SYSCALL_ERRNO(val, err) ((void) (err), val) +#define INTERNAL_SYSCALL_ERRNO(val, err) (-(val)) #undef INTERNAL_SYSCALL_RAW #define INTERNAL_SYSCALL_RAW(name, err, nr, args...) \ @@ -180,8 +181,7 @@ : "+r" (_r2), "=r" (_err) \ : ASM_ARGS_##nr \ : __SYSCALL_CLOBBERS); \ - _sys_result = _r2; \ - err = _err; \ + _sys_result = _err != 0 ? -_r2 : -_r2; \ } \ (int) _sys_result; }) -- 2.17.1