From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 26715 invoked by alias); 4 Jan 2012 11:34:34 -0000 Received: (qmail 26352 invoked by uid 22791); 4 Jan 2012 11:34:33 -0000 X-SWARE-Spam-Status: No, hits=-0.3 required=5.0 tests=AWL,BAYES_00,RP_MATCHES_RCVD,SPF_HELO_PASS X-Spam-Check-By: sourceware.org Received: from mail.amk-drives.bg (HELO amk-drives.bg) (213.91.234.2) by sourceware.org (qpsmtpd/0.43rc1) with SMTP; Wed, 04 Jan 2012 11:34:18 +0000 Received: (qmail 96297 invoked from network); 4 Jan 2012 13:37:51 +0200 Received: from unknown (HELO ?192.168.0.3?) (192.168.0.3) by 0 with SMTP; 4 Jan 2012 13:37:51 +0200 Message-ID: <4F043938.80908@amk-drives.bg> Date: Wed, 04 Jan 2012 11:34:00 -0000 From: Daniel Lehne User-Agent: Mozilla/5.0 (Windows NT 5.1; rv:8.0) Gecko/20111105 Thunderbird/8.0 MIME-Version: 1.0 To: crossgcc@sourceware.org Subject: OSELAS.Toolchain-2011.03.0: PTHREAD_PRIO_INHERIT undeclared for arm-1136jfs-linux-gcc Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-IsSubscribed: yes Mailing-List: contact crossgcc-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: crossgcc-owner@sourceware.org X-SW-Source: 2012-01/txt/msg00007.txt.bz2 Hello, in c++ the protocol PTHREAD_PRIO_INHERIT protocol for mutexes is available, but for c it is not available. I've traced it up to features.h which declares __USE_UNIX98 for _XOPEN_SOURCE = 500. Once __USE_UNIX98 is set the protocols are available in pthread.h. How it is activated by c++, i don't know. It is confusing, because pthread_mutexattr_setprotocol() is declared but the protocols not. simple example - reproduce on compile everytime: /* test of problem PTHREAD_PRIO_INHERIT undeclared in pthread.h (only in gcc, cpp with g++ no problem) */ /* toolchain: OSELAS.Toolchain-2011.03.0/arm-1136jfs-linux-gnueabi/gcc-4.5.2-glibc-2.13-binutils-2.21-kernel-2.6.36-sanitized/bin/arm-1136jfs-linux-gnueabi-gcc */ /* linked libs: pthread */ #include int main(int argc, char* argv[]) { int iRet; pthread_mutexattr_t csAttr; iRet = pthread_mutexattr_init(&csAttr); if (iRet == 0) iRet = pthread_mutexattr_settype(&csAttr, PTHREAD_MUTEX_ERRORCHECK); if (iRet == 0) iRet = pthread_mutexattr_setprotocol(&csAttr, PTHREAD_PRIO_INHERIT); // error: PTHREAD_PRIO_INHERIT undeclared pthread_mutexattr_destroy(&csAttr); return 0; } This example was build with the following configuration and output: Building file: ../main.c Invoking: GCC C Compiler /opt/OSELAS.Toolchain-2011.03.0/arm-1136jfs-linux-gnueabi/gcc-4.5.2-glibc-2.13-binutils-2.21-kernel-2.6.36-sanitized/bin/arm-1136jfs-linux-gnueabi-gcc -O0 -g3 -Wall -c -fmessage-length=0 -MMD -MP -MF"main.d" -MT"main.d" -o"main.o" "../main.c" ../main.c: In function 'main': ../main.c:14:51: error: 'PTHREAD_PRIO_INHERIT' undeclared (first use in this function) ../main.c:14:51: note: each undeclared identifier is reported only once for each function it appears in make: *** [main.o] Error 1 make: Target `all' not remade because of errors. Why this protocol is only for __USE_UNIX98 allowed? Is there a solution to use this protocol PTHREAD_PRIO_INHERIT with gcc? Best regards! -- For unsubscribe information see http://sourceware.org/lists.html#faq