hardened_malloc/test/mallinfo2.c
2021-09-30 01:16:10 -04:00

44 lines
1.0 KiB
C

#include <stdio.h>
#include <malloc.h>
#include "test_util.h"
static void print_mallinfo2(void) {
#if defined(__GLIBC__)
#if __GLIBC_PREREQ(2, 33)
struct mallinfo2 info = mallinfo2();
printf("mallinfo2:\n");
printf("arena: %zu\n", (size_t)info.arena);
printf("ordblks: %zu\n", (size_t)info.ordblks);
printf("smblks: %zu\n", (size_t)info.smblks);
printf("hblks: %zu\n", (size_t)info.hblks);
printf("hblkhd: %zu\n", (size_t)info.hblkhd);
printf("usmblks: %zu\n", (size_t)info.usmblks);
printf("fsmblks: %zu\n", (size_t)info.fsmblks);
printf("uordblks: %zu\n", (size_t)info.uordblks);
printf("fordblks: %zu\n", (size_t)info.fordblks);
printf("keepcost: %zu\n", (size_t)info.keepcost);
#endif
#endif
}
OPTNONE int main(void) {
void *a[4];
a[0] = malloc(1024 * 1024 * 1024);
a[1] = malloc(16);
a[2] = malloc(32);
a[3] = malloc(64);
print_mallinfo2();
free(a[0]);
free(a[1]);
free(a[2]);
free(a[3]);
printf("\n");
print_mallinfo2();
}