#43 [DevkitARM] newlib and locking

[Armin Diedering]

It is possible "__syscalls_t" to expand with the following functions (like devkitPPC)

int (lock_init) (int lock,int recursive);
int (lock_close) (int lock);
int (lock_release) (int lock);
int (lock_acquire) (int lock);
void (malloc_lock) (struct _reent ptr);
void (malloc_unlock) (struct _reent ptr);

This gives an external multithreading-library a chance to support this locking stuff

The malloc_lock stuff can be easy overwritten with own functions (malloc_lock & malloc_unlock). Because newlib calls real functions.
But the other lockings can ba not overwritten, because sys/lock.h contains only dummy macros

[Dave Murphy]

This eventually happened with devkitARM r45