From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 9043 invoked by alias); 25 Sep 2014 08:38:37 -0000 Mailing-List: contact gcc-bugs-help@gcc.gnu.org; run by ezmlm Precedence: bulk List-Id: List-Archive: List-Post: List-Help: Sender: gcc-bugs-owner@gcc.gnu.org Received: (qmail 9006 invoked by uid 48); 25 Sep 2014 08:38:29 -0000 From: "mathieu.malaterre at gmail dot com" To: gcc-bugs@gcc.gnu.org Subject: [Bug c/63368] Provide an implementation for `__sync_val_compare_and_swap_8' on powerpc (32bits) Date: Thu, 25 Sep 2014 08:38:00 -0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c X-Bugzilla-Version: 4.9.1 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: mathieu.malaterre at gmail dot com X-Bugzilla-Status: RESOLVED X-Bugzilla-Priority: P3 X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org X-Bugzilla-Target-Milestone: --- X-Bugzilla-Flags: X-Bugzilla-Changed-Fields: Message-ID: In-Reply-To: References: Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/ Auto-Submitted: auto-generated MIME-Version: 1.0 X-SW-Source: 2014-09/txt/msg02359.txt.bz2 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63368 --- Comment #4 from Mathieu Malaterre --- As stated in my original report I am running a PowerPC/32bits machine (not an ARM based one). AFAIK gcc 4.9.1 does not provide such implementation [*]. Could you please clarify what you mean by 'libatomic is there already' ? [*] % cat t.c #include int main() { int64_t x = 0, y = 1; y = __sync_val_compare_and_swap(&x, x, y); return 0; } % gcc -v t.c -latomic Using built-in specs. COLLECT_GCC=gcc COLLECT_LTO_WRAPPER=/usr/lib/gcc/powerpc-linux-gnu/4.9/lto-wrapper Target: powerpc-linux-gnu Configured with: ../src/configure -v --with-pkgversion='Debian 4.9.1-15' --with-bugurl=file:///usr/share/doc/gcc-4.9/README.Bugs --enable-languages=c,c++,java,go,d,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.9 --enable-shared --enable-linker-build-id --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.9 --libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu --enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-gnu-unique-object --disable-libitm --disable-libquadmath --enable-plugin --with-system-zlib --disable-browser-plugin --enable-java-awt=gtk --enable-gtk-cairo --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-4.9-powerpc/jre --enable-java-home --with-jvm-root-dir=/usr/lib/jvm/java-1.5.0-gcj-4.9-powerpc --with-jvm-jar-dir=/usr/lib/jvm-exports/java-1.5.0-gcj-4.9-powerpc --with-arch-directory=ppc --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-objc-gc --enable-secureplt --disable-softfloat --with-cpu=default32 --disable-softfloat --enable-targets=powerpc-linux,powerpc64-linux --enable-multiarch --with-long-double-128 --enable-multilib --enable-checking=release --build=powerpc-linux-gnu --host=powerpc-linux-gnu --target=powerpc-linux-gnu Thread model: posix gcc version 4.9.1 (Debian 4.9.1-15) COLLECT_GCC_OPTIONS='-v' /usr/lib/gcc/powerpc-linux-gnu/4.9/cc1 -quiet -v -imultiarch powerpc-linux-gnu -D__unix__ -D__gnu_linux__ -D__linux__ -Dunix -D__unix -Dlinux -D__linux -Asystem=linux -Asystem=unix -Asystem=posix t.c -msecure-plt -quiet -dumpbase t.c -auxbase t -version -o /tmp/ccNTY4Ab.s GNU C (Debian 4.9.1-15) version 4.9.1 (powerpc-linux-gnu) compiled by GNU C version 4.9.1, GMP version 6.0.0, MPFR version 3.1.2-p3, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 ignoring nonexistent directory "/usr/local/include/powerpc-linux-gnu" ignoring nonexistent directory "/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../../powerpc-linux-gnu/include" #include "..." search starts here: #include <...> search starts here: /usr/lib/gcc/powerpc-linux-gnu/4.9/include /usr/local/include /usr/lib/gcc/powerpc-linux-gnu/4.9/include-fixed /usr/include/powerpc-linux-gnu /usr/include End of search list. GNU C (Debian 4.9.1-15) version 4.9.1 (powerpc-linux-gnu) compiled by GNU C version 4.9.1, GMP version 6.0.0, MPFR version 3.1.2-p3, MPC version 1.0.2 GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072 Compiler executable checksum: c43d4b06b119d970361c68b09a8c4f80 COLLECT_GCC_OPTIONS='-v' as -v -a32 -mppc -many -mbig -o /tmp/cckOC6zg.o /tmp/ccNTY4Ab.s GNU assembler version 2.24.51 (powerpc-linux-gnu) using BFD version (GNU Binutils for Debian) 2.24.51.20140918 COMPILER_PATH=/usr/lib/gcc/powerpc-linux-gnu/4.9/:/usr/lib/gcc/powerpc-linux-gnu/4.9/:/usr/lib/gcc/powerpc-linux-gnu/:/usr/lib/gcc/powerpc-linux-gnu/4.9/:/usr/lib/gcc/powerpc-linux-gnu/ LIBRARY_PATH=/usr/lib/gcc/powerpc-linux-gnu/4.9/:/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../powerpc-linux-gnu/:/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../../lib/:/lib/powerpc-linux-gnu/:/lib/../lib/:/usr/lib/powerpc-linux-gnu/:/usr/lib/../lib/:/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../:/lib/:/usr/lib/ COLLECT_GCC_OPTIONS='-v' /usr/lib/gcc/powerpc-linux-gnu/4.9/collect2 -plugin /usr/lib/gcc/powerpc-linux-gnu/4.9/liblto_plugin.so -plugin-opt=/usr/lib/gcc/powerpc-linux-gnu/4.9/lto-wrapper -plugin-opt=-fresolution=/tmp/cc3I7gDk.res -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lc -plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lgcc_s --sysroot=/ --build-id --eh-frame-hdr -V -m elf32ppclinux --hash-style=gnu -dynamic-linker /lib/ld.so.1 /usr/lib/gcc/powerpc-linux-gnu/4.9/../../../powerpc-linux-gnu/crt1.o /usr/lib/gcc/powerpc-linux-gnu/4.9/../../../powerpc-linux-gnu/crti.o /usr/lib/gcc/powerpc-linux-gnu/4.9/crtbegin.o -L/usr/lib/gcc/powerpc-linux-gnu/4.9 -L/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../powerpc-linux-gnu -L/usr/lib/gcc/powerpc-linux-gnu/4.9/../../../../lib -L/lib/powerpc-linux-gnu -L/lib/../lib -L/usr/lib/powerpc-linux-gnu -L/usr/lib/../lib -L/usr/lib/gcc/powerpc-linux-gnu/4.9/../../.. /tmp/cckOC6zg.o -latomic -lgcc --as-needed -lgcc_s --no-as-needed -lc -lgcc --as-needed -lgcc_s --no-as-needed /usr/lib/gcc/powerpc-linux-gnu/4.9/crtend.o /usr/lib/gcc/powerpc-linux-gnu/4.9/../../../powerpc-linux-gnu/crtn.o GNU ld (GNU Binutils for Debian) 2.24.51.20140918 Supported emulations: elf32ppclinux elf32ppc elf32ppcsim elf64ppc /tmp/cckOC6zg.o: In function `main': t.c:(.text+0x74): undefined reference to `__sync_val_compare_and_swap_8' collect2: error: ld returned 1 exit status