找不到-lasan和libasan_preinit.o

时间:2016-07-04 03:03:54

标签: debugging compilation compiler-errors g++ sanitizer

当我使用-fsanitize = address将某个对象链接到二进制文件时,g ++表示标题中的两个lib不存在。 我的g ++版本是:

$ /opt/rh/devtoolset-2/root/usr/bin/g++ -v
Using built-in specs.
COLLECT_GCC=/opt/rh/devtoolset-2/root/usr/bin/g++
COLLECT_LTO_WRAPPER=/opt/rh/devtoolset-2/root/usr/libexec/gcc/x86_64-redhat-linux/4.8.2/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/opt/rh/devtoolset-2/root/usr --mandir=/opt/rh/devtoolset-2/root/usr/share/man --infodir=/opt/rh/devtoolset-2/root/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --enable-languages=c,c++,fortran,lto --enable-plugin --with-linker-hash-style=gnu --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.2-20140120/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.2-20140120/obj-x86_64-redhat-linux/cloog-install --with-mpc=/builddir/build/BUILD/gcc-4.8.2-20140120/obj-x86_64-redhat-linux/mpc-install --with-tune=generic --with-arch_32=i686 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.2 20140120 (Red Hat 4.8.2-15) (GCC)

如果我使用g ++,是否需要手动编译libasan?

1 个答案:

答案 0 :(得分:0)

Sanitizer运行时通常位于单独的包中。例如。在Debian上你需要安装libasanN(“N”取决于你的GCC版本)。