GDB_R15 99 arch/x86/kernel/kgdb.c gdb_regs[GDB_R15] = regs->r15; GDB_R15 152 arch/x86/kernel/kgdb.c gdb_regs[GDB_R15] = 0; GDB_R15 191 arch/x86/kernel/kgdb.c regs->r15 = gdb_regs[GDB_R15];