https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65913
Bug ID: 65913
Summary: Linking failure without -latomic
Product: gcc
Version: 5.1.0
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: libstdc++
Assignee: unassigned at gcc dot gnu.org
Reporter: yan12125 at gmail dot com
Target Milestone: ---
#include
#include
struct Simple1 { int i; };
int main()
{
std::atomic s1;
std::cout << std::boolalpha << s1.is_lock_free() << '\n';
return 0;
}
On GCC 5.1.0, the following program can't be compiled without -latomic:
g++ -v test.cpp -std=c++11
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/lto-wrapper
Target: x86_64-unknown-linux-gnu
Configured with: /build/gcc-multilib/src/gcc-5.1.0/configure --prefix=/usr
--libdir=/usr/lib --libexecdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info --with-bugurl=https://bugs.archlinux.org/
--enable-languages=c,c++,ada,fortran,go,lto,objc,obj-c++ --enable-shared
--enable-threads=posix --with-system-zlib --with-isl --enable-__cxa_atexit
--disable-libunwind-exceptions --enable-clocale=gnu --disable-libstdcxx-pch
--disable-libssp --enable-gnu-unique-object --enable-linker-build-id
--enable-lto --enable-plugin --enable-install-libiberty
--with-linker-hash-style=gnu --enable-gnu-indirect-function --enable-multilib
--disable-werror --enable-checking=release --with-default-libstdcxx-abi=c++98
Thread model: posix
gcc version 5.1.0 (GCC)
COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/cc1plus -quiet -v -D_GNU_SOURCE
test.cpp -quiet -dumpbase test.cpp -mtune=generic -march=x86-64 -auxbase test
-std=c++11 -version -o /tmp/ccrpKTDe.s
GNU C++11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 5.1.0, GMP version 6.0.0, MPFR version
3.1.2-p11, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
ignoring nonexistent directory
"/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../x86_64-unknown-linux-gnu/include"
#include "..." search starts here:
#include <...> search starts here:
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0/x86_64-unknown-linux-gnu
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../include/c++/5.1.0/backward
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include
/usr/local/include
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/include-fixed
/usr/include
End of search list.
GNU C++11 (GCC) version 5.1.0 (x86_64-unknown-linux-gnu)
compiled by GNU C version 5.1.0, GMP version 6.0.0, MPFR version
3.1.2-p11, MPC version 1.0.3
GGC heuristics: --param ggc-min-expand=100 --param ggc-min-heapsize=131072
Compiler executable checksum: 13af7a32108dcf1445ef29e0b81ed4a1
COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
as -v --64 -o /tmp/ccb54wZN.o /tmp/ccrpKTDe.s
GNU assembler version 2.25.0 (x86_64-unknown-linux-gnu) using BFD version (GNU
Binutils) 2.25.0
COMPILER_PATH=/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/:/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/:/usr/lib/gcc/x86_64-unknown-linux-gnu/:/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/:/usr/lib/gcc/x86_64-unknown-linux-gnu/
LIBRARY_PATH=/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/:/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../lib/:/lib/../lib/:/usr/lib/../lib/:/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../:/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-v' '-std=c++11' '-shared-libgcc' '-mtune=generic'
'-march=x86-64'
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/collect2 -plugin
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/liblto_plugin.so
-plugin-opt=/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/lto-wrapper
-plugin-opt=-fresolution=/tmp/ccoH7Vln.res -plugin-opt=-pass-through=-lgcc_s
-plugin-opt=-pass-through=-lgcc -plugin-opt=-pass-through=-lc
-plugin-opt=-pass-through=-lgcc_s -plugin-opt=-pass-through=-lgcc --build-id
--eh-frame-hdr --hash-style=gnu -m elf_x86_64 -dynamic-linker
/lib64/ld-linux-x86-64.so.2
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../lib/crt1.o
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../lib/crti.o
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/crtbegin.o
-L/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0
-L/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../../../lib -L/lib/../lib
-L/usr/lib/../lib -L/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/../../..
/tmp/ccb54wZN.o -lstdc++ -lm -lgcc_s -lgcc -lc -lgcc_s -lgcc
/usr/lib/gcc/x86_64-unknown-linux-gnu/5.1.0/crtend.o
/usr/lib/gcc/x86_64
