I am using the clone feature in linux c.
However, I encountered the error CLONE_VM undeclared (first use in this function) when I tried to compile my code.
I went to google for solutions and one of the site mentioned that #include <sched.h>
must be included inside the code. I have already included #include <sched.h>
in my code but the compilation error still persists.
Any help? :)
int c = clone(child,p+STACKSIZE-1,CLONE_VM|SIGCHLD,NULL) ;
Add the following lines to the beginning of your code
#define _GNU_SOURCE /* See feature_test_macros(7) */
#include <sched.h>
You could find out which header files and/or macros are needed by
man 2 syscall_name
man 3 library_function_name
By the way, the implication of _GNU_SOURCE
and more could be find out by man 7 feature_test_macros
.
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