--- /dev/null
+++ dyld/dyld-1340/other-tools/make_obj_file.cpp
@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2024 Apple Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ *
+ * "Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
+ * Reserved.  This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.0 (the 'License').  You may not use this file
+ * except in compliance with the License.  Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License."
+ *
+ * @APPLE_LICENSE_HEADER_END@
+ */
+
+#include <stddef.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+// mach_o
+#include "Header.h"
+#include "Architecture.h"
+
+// mach_o_writer
+#include "HeaderWriter.h"
+
+#include "MemoryBuffer.h"
+
+#include "cctools_helpers.h"
+
+
+using mach_o::Header;
+using mach_o::HeaderWriter;
+using mach_o::Error;
+using mach_o::Architecture;
+
+VIS_HIDDEN
+void make_obj_file_with_linker_options(uint32_t cpu_type, uint32_t cpu_subtype,
+                                       uint32_t libHintCount, const char* libNames[],
+                                       uint32_t frameworkHintCount, const char* frameworkNames[],
+                                       char outPath[PATH_MAX])
+{
+    // estimate total load command size
+    Architecture arch(cpu_type, cpu_subtype);
+    uint32_t size = sizeof(mach_header_64);
+    for (uint32_t i=0; i < libHintCount; ++i)
+        size += Header::pointerAligned(arch.is64(), (uint32_t)(sizeof(linker_option_command) + strlen(libNames[i]) + 3));
+    for (uint32_t i=0; i < frameworkHintCount; ++i)
+        size += Header::pointerAligned(arch.is64(), (uint32_t)(sizeof(linker_option_command) + strlen(frameworkNames[i]) + 12));
+    size_t allocationSize = (size + 0x3FFF) & (-0x4000);
+    // create HeaderWriter
+    WritableMemoryBuffer mhBuffer = WritableMemoryBuffer::allocate(allocationSize);
+    HeaderWriter* mh = HeaderWriter::make(mhBuffer, MH_OBJECT, 0, arch, false);
+    // add all auto-linking load commands
+    for (uint32_t i=0; i < libHintCount; ++i) {
+        const char* libName     = libNames[i];
+        size_t      libBuffSize = strlen(libName) + 3; // space for -l and trailing nul
+        char        libBuffer[libBuffSize];
+        strlcpy(libBuffer, "-l", libBuffSize);
+        strlcat(libBuffer, libName, libBuffSize);
+        std::span<uint8_t> buffer{(uint8_t*)libBuffer, libBuffSize};
+        mh->addLinkerOption(buffer, 1);
+    }
+    for (uint32_t i=0; i < frameworkHintCount; ++i) {
+        const char* fwName     = frameworkNames[i];
+        size_t      fwBuffSize = strlen(fwName) + 12;  // space for -framework and trailing nul
+        char        fwBuffer[fwBuffSize];
+        strcpy(&fwBuffer[0],  "-framework");
+        strcpy(&fwBuffer[11], fwName);
+        std::span<uint8_t> buffer{(uint8_t*)fwBuffer, fwBuffSize};
+        mh->addLinkerOption(buffer, 2);
+    }
+
+    mh->save(outPath);
+}