tbb_2022: add patch to fix macOS crashes

From 791d42ddacad829d19a4f66b77dc9ca410008db9 Mon Sep 17 00:00:00 2001

From: Emily <hello@emily.moe>

Date: Sat, 13 Sep 2025 03:16:16 +0100

Subject: [PATCH] Use `dladdr` to keep `libtbbmalloc` loaded on POSIX

This fixes issues that arise when `libtbbmalloc` cannot be loaded by

relative path, makes the behaviour consistent with the Windows code

path, and eliminates the duplication of `MALLOCLIB_NAME`.

---

 src/tbbmalloc/tbbmalloc.cpp | 34 +++++++++-------------------------

 1 file changed, 9 insertions(+), 25 deletions(-)

diff --git a/src/tbbmalloc/tbbmalloc.cpp b/src/tbbmalloc/tbbmalloc.cpp

index b72e03a74f..12d62445aa 100644

--- a/src/tbbmalloc/tbbmalloc.cpp

+++ b/src/tbbmalloc/tbbmalloc.cpp

@@ -1,5 +1,5 @@

 /*

-    Copyright (c) 2005-2023 Intel Corporation

+    Copyright (c) 2005-2025 Intel Corporation

     Licensed under the Apache License, Version 2.0 (the "License");

     you may not use this file except in compliance with the License.

@@ -32,25 +32,6 @@

 namespace rml {

 namespace internal {

-#if TBB_USE_DEBUG

-#define DEBUG_SUFFIX "_debug"

-#else

-#define DEBUG_SUFFIX

-#endif /* TBB_USE_DEBUG */

-

-// MALLOCLIB_NAME is the name of the oneTBB memory allocator library.

-#if _WIN32||_WIN64

-#define MALLOCLIB_NAME "tbbmalloc" DEBUG_SUFFIX ".dll"

-#elif __APPLE__

-#define MALLOCLIB_NAME "libtbbmalloc" DEBUG_SUFFIX ".2.dylib"

-#elif __FreeBSD__ || __NetBSD__ || __OpenBSD__ || __sun || _AIX || __ANDROID__

-#define MALLOCLIB_NAME "libtbbmalloc" DEBUG_SUFFIX ".so"

-#elif __unix__

-#define MALLOCLIB_NAME "libtbbmalloc" DEBUG_SUFFIX  __TBB_STRING(.so.2)

-#else

-#error Unknown OS

-#endif

-

 void init_tbbmalloc() {

 #if __TBB_USE_ITT_NOTIFY

     MallocInitializeITT();

@@ -92,11 +73,14 @@ struct RegisterProcessShutdownNotification {

     RegisterProcessShutdownNotification() {

         // prevents unloading, POSIX case

-        // We need better support for the library pinning

-        // when dlopen can't find TBBmalloc library.

-        // for example: void *ret = dlopen(MALLOCLIB_NAME, RTLD_NOW);

-        // MALLOC_ASSERT(ret, "Allocator can't load itself.");

-        dlopen(MALLOCLIB_NAME, RTLD_NOW);

+        Dl_info dlinfo;

+        int ret = dladdr((void*)&init_tbbmalloc, &dlinfo);

+        MALLOC_ASSERT(ret && dlinfo.dli_fname, "Allocator can't find itself.");

+        tbb::detail::suppress_unused_warning(ret);

+

+        void* lib = dlopen(dlinfo.dli_fname, RTLD_NOW);

+        MALLOC_ASSERT(lib, "Allocator can't load itself.");

+        tbb::detail::suppress_unused_warning(lib);

     }

     RegisterProcessShutdownNotification(RegisterProcessShutdownNotification&) = delete;

    # <https://github.com/uxlfoundation/oneTBB/pull/987>

    ./fix-32-bit-powerpc-build.patch

    # Fix an assumption that `libtbbmalloc` can pass a relative path to

    # `dlopen(3)` to find itself. This caused mysterious crashes on

    # macOS, where we do not use run paths by default.

    #

    # <https://github.com/uxlfoundation/oneTBB/pull/1849>

    ./fix-libtbbmalloc-dlopen.patch

  ];

  nativeBuildInputs = [