trying to patch segfault mmap

.gitignore

@@ -1,2 +1,3 @@
 build
 *.so
+main

compile_flags.txt

@@ -7,3 +7,4 @@
 -iquoteinc
 -iquotelib
 -fPIC
+-g

inc/malloc.h

@@ -4,9 +4,9 @@
 #include <unistd.h>
 #include <sys/resource.h>
 
-/*typedef struct {
+typedef struct {
     u16 byte;
-} meta_t ;*/
+} meta_t ;
 
 void free(void *ptr);
 void *malloc(size_t size);

main.c

@@ -1,9 +1,15 @@
-#include <stddef.h>
+#include "lib/libft/libft.h"
 #include "inc/malloc.h"
+#include "lib/ft_printf/ft_printf.h"
 
 int
 main(void) {
-    void* test = malloc(4);
-    (void)test;
+    char* test = malloc(11);
+    if (!test)
+        return 1;
+    for (int i = 0; i < 11; i++)
+        test[i] = i + 32;
+    ft_printf(test);
+    free(test);
     return 0;
 }

main.sh

@@ -1,2 +1,4 @@
-export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD
-gcc main.c -L. -lft_malloc -o main
+export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD/
+gcc main.c -L. -lft_malloc -g -o main lib/lib.a
+./main
+#rm main

src/malloc.c

@@ -1,12 +1,20 @@
+#include <stdio.h>
+#include <errno.h>
 char *memory = nullptr;
 
 void *
 malloc(size_t size) {
-    if (!memory)
-        memory = mmap(nullptr, 4096 * 10, 0, PROT_READ | PROT_WRITE, 0, 0);
+    if (!memory) {
+        memory = mmap(nullptr, 4096, PROT_READ | PROT_WRITE, MAP_SHARED, 0, 0);
+        if (memory == MAP_FAILED) {
+            printf("%d\n", errno); 
+            //ft_printf_fd(2, "Error mmap\n");
+            //return NULL;
+        }
+    }
 
     for (size_t i = 0; i < size; i++) {
-        ft_printf("test");
+        //ft_printf("test");
     }
 
     return memory;