sanity check page size at runtime

2018-08-29 10:59:37 -04:00 · 2018-08-29 10:59:37 -04:00 · 0e2f3d1015
commit 0e2f3d1015
parent d779d41721
1 changed files with 4 additions and 0 deletions
--- a/malloc.c
+++ b/malloc.c
@ -594,6 +594,10 @@ COLD static void init_slow_path(void) {
        fatal_error("pthread_atfork failed");
    }

+    if (sysconf(_SC_PAGESIZE) != PAGE_SIZE) {
+        fatal_error("page size mismatch");
+    }
+
    struct random_state rng;
    random_state_init(&rng);