I am trying to use the m5threads library for running a multithreaded
program in gem5. I am also cross compiling my program. My host is "x64" and
target is "arm". I have some doubts:
1. After running the makefile it creates a directory libpthread.a in the
m5threads directory and gives me the following warning:
:~/Desktop/m5thread/m5threads$ make
gcc -O3 -static -c -o pthread.o pthread.c
pthread.c: In function ‘pthread_create’:
pthread.c:256:3: *warning: implicit declaration of function ‘clone’
[-Wimplicit-function-declaration]*
* clone(__pthread_trampoline, tcb->stack_start_addr,
CLONE_VM|CLONE_FS|CLONE_FILES|CLONE_SIGHA*
* ^*
ar rv libpthread.a pthread.o
ar: creating libpthread.a
a - pthread.o
*make: Warning: Archive 'libpthread.a' seems to have been created in
deterministic mode. '' will always be updated. Please consider passing the
U flag to ar to avoid the problem.*
rm pthread.o
Does the above warning needs to be considered? If so what should I do?
2. After making the m5threads, how to link my program to it?
For example for using pthread library, I have to use "gcc -pthread".
3. Do I need to make any changes in my program to use the m5threads?
Thank you.
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