#include #include #include #include #include #include "alloc_api.h" void *get_new_region(uintptr_t size) { void *m = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (m == MAP_FAILED) { return 0; } return m; } void error(char *msg) { printf("=== ALLOCATOR ERROR ===\n%s\n====== END ERROR ======\n", msg); } int main() { printf("Hello, World!\n"); struct Arena arena = { NULL, NULL, get_new_region, error, }; return 0; }