use freestanding headers

core/mem/init.c

@@ -5,7 +5,7 @@
 #include <zinnia/print.h>
 #include <zinnia/utils.h>
 #include <zinnia/vma.h>
-#include <string.h>
+#include <zinnia/string.h>
 
 extern uint8_t __ld_text_start[];
 extern uint8_t __ld_text_end[];

core/mem/pmap.c

@@ -4,7 +4,7 @@
 #include <zinnia/spin.h>
 #include <zinnia/vma.h>
 #include <config.h>
-#include <string.h>
+#include <zinnia/string.h>
 
 // TODO: For now, we assume that we can do generic PTE lookups on every arch that has a MMU.
 static_assert(CONFIG_HAVE_MMU_GENERIC);

core/mem/pmm.c

@@ -5,7 +5,7 @@
 #include <zinnia/spin.h>
 #include <zinnia/virt.h>
 #include <stdint.h>
-#include <string.h>
+#include <zinnia/string.h>
 
 uintptr_t mem_hhdm_base = 0;
 

core/mem/slab.c

@@ -2,7 +2,7 @@
 #include <zinnia/compiler.h>
 #include <zinnia/errno.h>
 #include <zinnia/spin.h>
-#include <string.h>
+#include <zinnia/string.h>
 
 typedef struct {
     size_t num_pages; // Amount of pages connected to this slab.

core/mem/vmo.c

@@ -3,7 +3,7 @@
 #include <zinnia/list.h>
 #include <zinnia/utils.h>
 #include <zinnia/vmo.h>
-#include <string.h>
+#include <zinnia/string.h>
 
 errno_t vmo_read(struct vmo* obj, uintptr_t offset, void* buf, size_t len, size_t* actual_read) {
     const size_t page_size = arch_mem_page_size();