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From: "pab at pabigot dot com" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug target/62100] c++11 threads invoke pure virtual function on arm embedded system
Date: Tue, 12 Aug 2014 12:34:00 -0000 [thread overview]
Message-ID: <bug-62100-4-CSpwP70tOT@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-62100-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=62100
--- Comment #4 from Peter A. Bigot <pab at pabigot dot com> ---
It's not obvious to me:
beaglebone[98]$ gcc -v
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/lib/gcc/gcc/arm-poky-linux-gnueabi/4.9.1/lto-wrapper
Target: arm-poky-linux-gnueabi
Configured with:
/prj/oe/omap/build-beaglebone-master/tmp/work-shared/gcc-4.9.1-r0/gcc-4.9.1/configure
--build=x86_64-linux --host=arm-poky-linux-gnueabi
--target=arm-poky-linux-gnueabi --prefix=/usr --exec_prefix=/usr
--bindir=/usr/bin --sbindir=/usr/sbin --libexecdir=/usr/lib/gcc
--datadir=/usr/share --sysconfdir=/etc --sharedstatedir=/com
--localstatedir=/var --libdir=/usr/lib --includedir=/usr/include
--oldincludedir=/usr/include --infodir=/usr/share/info --mandir=/usr/share/man
--disable-silent-rules --disable-dependency-tracking
--with-libtool-sysroot=/prj/oe/omap/build-beaglebone-master/tmp/sysroots/beaglebone
--with-gnu-ld --enable-shared --enable-languages=c,c++ --enable-threads=posix
--enable-multilib --enable-c99 --enable-long-long --enable-symvers=gnu
--enable-libstdcxx-pch --program-prefix=arm-poky-linux-gnueabi-
--without-local-prefix --enable-target-optspace --enable-lto --enable-libssp
--disable-bootstrap --disable-libmudflap --with-system-zlib
--with-linker-hash-style=gnu --enable-linker-build-id --with-ppl=no
--with-cloog=no --enable-checking=release --enable-cheaders=c_global
--with-float=hard --with-sysroot=/
--with-build-sysroot=/prj/oe/omap/build-beaglebone-master/tmp/sysroots/beaglebone
--with-native-system-header-dir=/prj/oe/omap/build-beaglebone-master/tmp/sysroots/beaglebone/usr/include
--with-gxx-include-dir=/usr/include/c++/4.9.1 --enable-nls
Thread model: posix
gcc version 4.9.1 (GCC)
Yocto builds libssp libstdc++-v3 libgomp libatomic separately from gcc for
packaging/cross-compile/other reasons that aren't entirely clear to me, so I
suspect the issue arises there.
But one difference is that I'm using -std=c++1y (and sometimes -std=c++11).
Would that be enough to be an ABI change? I haven't encountered issues on
x86-64.
next prev parent reply other threads:[~2014-08-12 12:34 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-11 23:23 [Bug libstdc++/62100] New: " pab at pabigot dot com
2014-08-12 10:05 ` [Bug target/62100] " redi at gcc dot gnu.org
2014-08-12 11:27 ` pab at pabigot dot com
2014-08-12 11:50 ` redi at gcc dot gnu.org
2014-08-12 12:34 ` pab at pabigot dot com [this message]
2014-08-12 14:46 ` redi at gcc dot gnu.org
2014-08-14 14:03 ` pab at pabigot dot com
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