From patchwork Thu Sep 10 10:30:40 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Yonggang Luo X-Patchwork-Id: 11767425 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 0AC3A59D for ; Thu, 10 Sep 2020 10:34:23 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 B369820BED for ; Thu, 10 Sep 2020 10:34:22 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KurugJDr" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B369820BED Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Received: from localhost ([::1]:43750 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kGJuH-0003Q6-Lt for patchwork-qemu-devel@patchwork.kernel.org; Thu, 10 Sep 2020 06:34:21 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:50730) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kGJrw-00079Z-Rg; Thu, 10 Sep 2020 06:31:56 -0400 Received: from mail-pj1-x1042.google.com ([2607:f8b0:4864:20::1042]:39767) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1kGJru-00036e-Ro; Thu, 10 Sep 2020 06:31:56 -0400 Received: by mail-pj1-x1042.google.com with SMTP id s2so2820082pjr.4; Thu, 10 Sep 2020 03:31:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=54KjmFONhFVNbISF0ZvZ1gRQPHqntcxYT0Rta8IUzTM=; b=KurugJDrN1wGMLweoZjbyHB+qUZNqOrKrnUYXK4t2mwfPWSoahFtg+wrhKLcZKB+On J/6JDp9HhjjmxMEYXfeytHJqiUvLc+kNqpydi935223Bb4N9aPOiX0RvpN5XW91sbB1q lxL3ZJW1EFmE9Yd/tfDUIXjkpfh8VPMgIsyg/cf1EQ2aRg7qspAWP/AdloxETJ+bswE+ cMi1reZbQ4iBD4DMEOlt13SMxoZIcGxaW3wOxPa5Tzv3Bhbykz5Lu1TnGFlykLIPV67B Hs8ISjyWBe09KIZ5uTPyr2GYE/juEyOW7+IuOGeU1cBCvKd3qqYLNyNfKMfWDv4Iipgl /5OA== 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=54KjmFONhFVNbISF0ZvZ1gRQPHqntcxYT0Rta8IUzTM=; b=RDCE/u+pgmQpGITl4WA0Ifb/WCINr90EkS6sili6/St0bL5zIxXsPSqVuQTnCw/4Is StYfRutRbOBQwXqaoxTEThJLBoyKizU7vNbqY7R3IyNiazpPG3VAM7SKmGkEUfOgbHUf SgRGupdr7HTeQo/vxcGtYf5st+67agHaR5yJ8r8HgXlek4QGwLWg0ydKCxYKa/JfTO9L JuUqVopaKQutIBNsmNv8OLlWL7lqTLNbSZaaNwiW5B2Wxl4rBUzCUxZnDM0Od4ZilCBe gEbzx2+BFIqaarCF20YZ0vzIKiWG5g21jAskohX5Ma3y9m5l+OKurXbk3NpVpcWf9F0k ziRg== X-Gm-Message-State: AOAM532DSfIVg8CRVpRsupCuh71j95xKPR86jxGSoMtEITyy2A7N1wHT R/Mlq4qp3YP7Ohl77Rm0Gkcp2/jUROpzWhP3NKs= X-Google-Smtp-Source: ABdhPJzeSZENAm9t3ZHX/JWZA6L1FLeQv9n0FeoEKD3nUkk7daYT9aNtrDuHq17A07sTS82HynPgtQ== X-Received: by 2002:a17:90a:880e:: with SMTP id s14mr4591185pjn.140.1599733912568; Thu, 10 Sep 2020 03:31:52 -0700 (PDT) Received: from localhost.localdomain ([222.95.248.6]) by smtp.googlemail.com with ESMTPSA id g21sm2000203pfh.30.2020.09.10.03.31.46 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 10 Sep 2020 03:31:51 -0700 (PDT) From: Yonggang Luo To: qemu-devel@nongnu.org Subject: [PATCH v7 06/25] win32: Simplify gmtime_r detection direct base on _POSIX_THREAD_SAFE_FUNCTIONS. Date: Thu, 10 Sep 2020 18:30:40 +0800 Message-Id: <20200910103059.987-7-luoyonggang@gmail.com> X-Mailer: git-send-email 2.28.0.windows.1 In-Reply-To: <20200910103059.987-1-luoyonggang@gmail.com> References: <20200910103059.987-1-luoyonggang@gmail.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1042; envelope-from=luoyonggang@gmail.com; helo=mail-pj1-x1042.google.com X-detected-operating-system: by eggs.gnu.org: No matching host in p0f cache. That's all we know. X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Kevin Wolf , Ed Maste , Michael Roth , qemu-block@nongnu.org, Stefan Weil , Xie Changlong , Peter Lieven , Markus Armbruster , Max Reitz , Yonggang Luo , Gerd Hoffmann , Wen Congyang , Paolo Bonzini , Richard Henderson , Li-Wen Hsu Errors-To: qemu-devel-bounces+patchwork-qemu-devel=patchwork.kernel.org@nongnu.org Sender: "Qemu-devel" First, this reduce the size of configure, configure are tending to removal in future, and this didn't introduce any new feature or remove any exist feature. Second, the current localtime_r detection are conflict with ncursesw detection in mingw, when ncursesw detected, it will provide the following compile flags pkg-config --cflags ncursesw -D_XOPEN_SOURCE=600 -D_POSIX_C_SOURCE=199506L -IC:/CI-Tools/msys64/mingw64/include/ncursesw And the compile flag _POSIX_C_SOURCE will always cause _POSIX_THREAD_SAFE_FUNCTIONS to be defined, in new version of mingw, that's will cause localtime_r to be defined. But the configure script didn't provide _POSIX_C_SOURCE macro, and that's will result localtime_r not detected because localtime_r are defined in forceinline manner. And finally cause conflict between QEMU defined localtime_r struct tm *localtime_r(const time_t *timep, struct tm *result); with mingw defined localtime_r ``` #if defined(_POSIX_C_SOURCE) && !defined(_POSIX_THREAD_SAFE_FUNCTIONS) #define _POSIX_THREAD_SAFE_FUNCTIONS 200112L #endif #ifdef _POSIX_THREAD_SAFE_FUNCTIONS __forceinline struct tm *__CRTDECL localtime_r(const time_t *_Time, struct tm *_Tm) { return localtime_s(_Tm, _Time) ? NULL : _Tm; } __forceinline struct tm *__CRTDECL gmtime_r(const time_t *_Time, struct tm *_Tm) { return gmtime_s(_Tm, _Time) ? NULL : _Tm; } __forceinline char *__CRTDECL ctime_r(const time_t *_Time, char *_Str) { return ctime_s(_Str, 0x7fffffff, _Time) ? NULL : _Str; } __forceinline char *__CRTDECL asctime_r(const struct tm *_Tm, char * _Str) { return asctime_s(_Str, 0x7fffffff, _Tm) ? NULL : _Str; } #endif ``` So I suggest remove this configure script, and restrict msys2/mingw version to easy to maintain. And use _POSIX_THREAD_SAFE_FUNCTIONS to guard the localtime_r and counterpart functions Signed-off-by: Yonggang Luo --- configure | 34 ---------------------------------- include/sysemu/os-win32.h | 4 ++-- util/oslib-win32.c | 2 +- 3 files changed, 3 insertions(+), 37 deletions(-) diff --git a/configure b/configure index b21843fdb9..af86ba1db3 100755 --- a/configure +++ b/configure @@ -2495,37 +2495,6 @@ if test "$vhost_net" = ""; then test "$vhost_kernel" = "yes" && vhost_net=yes fi -########################################## -# MinGW / Mingw-w64 localtime_r/gmtime_r check - -if test "$mingw32" = "yes"; then - # Some versions of MinGW / Mingw-w64 lack localtime_r - # and gmtime_r entirely. - # - # Some versions of Mingw-w64 define a macro for - # localtime_r/gmtime_r. - # - # Some versions of Mingw-w64 will define functions - # for localtime_r/gmtime_r, but only if you have - # _POSIX_THREAD_SAFE_FUNCTIONS defined. For fun - # though, unistd.h and pthread.h both define - # that for you. - # - # So this #undef localtime_r and #include - # are not in fact redundant. -cat > $TMPC << EOF -#include -#include -#undef localtime_r -int main(void) { localtime_r(NULL, NULL); return 0; } -EOF - if compile_prog "" "" ; then - localtime_r="yes" - else - localtime_r="no" - fi -fi - ########################################## # pkg-config probe @@ -7087,9 +7056,6 @@ if [ "$bsd" = "yes" ] ; then echo "CONFIG_BSD=y" >> $config_host_mak fi -if test "$localtime_r" = "yes" ; then - echo "CONFIG_LOCALTIME_R=y" >> $config_host_mak -fi if test "$qom_cast_debug" = "yes" ; then echo "CONFIG_QOM_CAST_DEBUG=y" >> $config_host_mak fi diff --git a/include/sysemu/os-win32.h b/include/sysemu/os-win32.h index d8978e28c0..3ac8a53bac 100644 --- a/include/sysemu/os-win32.h +++ b/include/sysemu/os-win32.h @@ -48,12 +48,12 @@ #define siglongjmp(env, val) longjmp(env, val) /* Missing POSIX functions. Don't use MinGW-w64 macros. */ -#ifndef CONFIG_LOCALTIME_R +#ifndef _POSIX_THREAD_SAFE_FUNCTIONS #undef gmtime_r struct tm *gmtime_r(const time_t *timep, struct tm *result); #undef localtime_r struct tm *localtime_r(const time_t *timep, struct tm *result); -#endif /* CONFIG_LOCALTIME_R */ +#endif static inline void os_setup_signal_handling(void) {} static inline void os_daemonize(void) {} diff --git a/util/oslib-win32.c b/util/oslib-win32.c index c654dafd93..f2fa9a3549 100644 --- a/util/oslib-win32.c +++ b/util/oslib-win32.c @@ -106,7 +106,7 @@ void qemu_anon_ram_free(void *ptr, size_t size) } } -#ifndef CONFIG_LOCALTIME_R +#ifndef _POSIX_THREAD_SAFE_FUNCTIONS /* FIXME: add proper locking */ struct tm *gmtime_r(const time_t *timep, struct tm *result) {