LinuxQuestions.org - Make error

Hi all,

This problem is related to make error produced while compiling nachos kernel on gcc 2.96. It has been edited by me. Now it compiles correctly but it produces linking errors. The errors are like this:

Code:

scheduler.o: In function `Scheduler::ReadyToRun(Thread *)':

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:72: undefined reference to `Thread::getStatus(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:74: undefined reference to `Thread::resetDispWait(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:75: undefined reference to `Thread::getPriority(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:75: undefined reference to `Thread::setPriority(int)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:76: undefined reference to `Thread::getPriority(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:76: undefined reference to `Thread::resetTimeLeft(int)'

scheduler.o: In function `update(int)':

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:193: undefined reference to `Thread::incrementDispWait(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:193: undefined reference to `Thread::getPriority(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:194: undefined reference to `Thread::getPriority(void)'

scheduler.o: In function `RunList::AddThread(Thread *)':

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:334: undefined reference to `Thread::getPriority(void)'

scheduler.o: In function `RunList::ChangeThreadPriority(Thread *, int)':

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:342: undefined reference to `Thread::getPriority(void)'

/home/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:343: undefined reference to `Thread::getPriority(void)'

scheduler.o:/users/chm/msci/neerajcd/nachos-3.4/code/threads/../threads/scheduler.cc:354: more undefined references to `Thread::getPriority(void)' follow

system.o: In function `Timer::~Timer(void)':

/home/neerajcd/nachos-3.4/code/threads/../machine/interrupt.h(.text+0x16): undefined reference to `Thread::decrementTimeLeft(void)'

/home/neerajcd/nachos-3.4/code/threads/../machine/interrupt.h(.text+0x30): undefined reference to `Thread::getPriority(void)'

/home/neerajcd/nachos-3.4/code/threads/../machine/interrupt.h(.text+0x54): undefined reference to `Thread::setPriority(int)'

/home/neerajcd/nachos-3.4/code/threads/../machine/interrupt.h(.text+0xad): undefined reference to `Thread::incrementDispWait(void)'

collect2: ld returned 1 exit status

make: *** [nachos] Error 1

This is when each of these functions exist. Please help me.

TIA