Projet_SETI_RISC-V/riscv-gnu-toolchain/binutils/gdb/testsuite/gdb.base/langs2.cxx

extern "C" int csub (int);
int
foo (int x)
{
  return csub (x / 2);
}

extern "C" int cppsub_ (int *);
int
cppsub_ (int *y)
{
  return foo (*y);
}