usrlibgccx8664linuxgnu9
usrlibgccx8664 is a component of the GNU Compiler Collection that provides the standard library interface for 64‑bit x86 platforms. It consists of a set of object files and static libraries that implement the low‑level runtime support required by C and C++ programs compiled with GCC for the x86_64 architecture. The library is typically located in the sysroot of the compiler toolchain, for example /usr/lib/gcc/x86_64-linux-gnu/ versions, and is linked automatically by the compiler when the –static flag is not used.
The core of usrlibgccx8664 contains the start‑up code, exception handling support, and compatibility functions that map
Historically, usrlibgccx8664 developed from the original 32‑bit usrlibgcc used on i386 platforms. The addition of 64‑bit
For developers, the library is usually invisible; the GCC driver supplies the correct –l options automatically.