Patch-Source: https://github.com/microsoft/mimalloc/commit/a6ecb5c299e65eb7dd6602b97235126acc01a868
--
From a6ecb5c299e65eb7dd6602b97235126acc01a868 Mon Sep 17 00:00:00 2001
From: daanx <daan@effp.org>
Date: Tue, 13 May 2025 15:35:29 -0700
Subject: [PATCH] fix format specifier (for alpine linux x86, issue #1086)

diff --git a/src/arena.c b/src/arena.c
index bdae8da1..aa01ffcb 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -407,7 +407,7 @@ void* _mi_arena_alloc_aligned(size_t size, size_t alignment, size_t align_offset
 
   // try to allocate in an arena if the alignment is small enough and the object is not too small (as for heap meta data)
   if (!mi_option_is_enabled(mi_option_disallow_arena_alloc)) {  // is arena allocation allowed?
-    if (size >= MI_ARENA_MIN_OBJ_SIZE && alignment <= MI_SEGMENT_ALIGN && align_offset == 0) 
+    if (size >= MI_ARENA_MIN_OBJ_SIZE && alignment <= MI_SEGMENT_ALIGN && align_offset == 0)
     {
       void* p = mi_arena_try_alloc(numa_node, size, alignment, commit, allow_large, req_arena_id, memid);
       if (p != NULL) return p;
@@ -487,7 +487,7 @@ static void mi_arena_purge(mi_arena_t* arena, size_t bitmap_idx, size_t blocks)
     // we need to ensure we do not try to reset (as that may be invalid for uncommitted memory).
     mi_assert_internal(already_committed < blocks);
     mi_assert_internal(mi_option_is_enabled(mi_option_purge_decommits));
-    needs_recommit = _mi_os_purge_ex(p, size, false /* allow reset? */, mi_arena_block_size(already_committed));    
+    needs_recommit = _mi_os_purge_ex(p, size, false /* allow reset? */, mi_arena_block_size(already_committed));
   }
 
   // clear the purged blocks
@@ -611,7 +611,7 @@ static bool mi_arena_try_purge(mi_arena_t* arena, mi_msecs_t now, bool force)
   return any_purged;
 }
 
-static void mi_arenas_try_purge( bool force, bool visit_all ) 
+static void mi_arenas_try_purge( bool force, bool visit_all )
 {
   if (_mi_preloading() || mi_arena_purge_delay() <= 0) return;  // nothing will be scheduled
 
@@ -947,7 +947,7 @@ void mi_debug_show_arenas(void) mi_attr_noexcept {
   for (size_t i = 0; i < max_arenas; i++) {
     mi_arena_t* arena = mi_atomic_load_ptr_relaxed(mi_arena_t, &mi_arenas[i]);
     if (arena == NULL) break;
-    _mi_message("arena %zu: %zu blocks of size %zuMiB (in %zu fields) %s\n", i, arena->block_count, MI_ARENA_BLOCK_SIZE / MI_MiB, arena->field_count, (arena->memid.is_pinned ? ", pinned" : ""));
+    _mi_message("arena %zu: %zu blocks of size %zuMiB (in %zu fields) %s\n", i, arena->block_count, (size_t)(MI_ARENA_BLOCK_SIZE / MI_MiB), arena->field_count, (arena->memid.is_pinned ? ", pinned" : ""));
     if (show_inuse) {
       inuse_total += mi_debug_show_bitmap("  ", "inuse blocks", arena->block_count, arena->blocks_inuse, arena->field_count);
     }