Add enough Bazel to build `//rs_bindings_from_cc:rs_bindings_from_cc_impl`
PiperOrigin-RevId: 450512595
diff --git a/common/rust_allocator_shims.c b/common/rust_allocator_shims.c
new file mode 100644
index 0000000..c8e39ed
--- /dev/null
+++ b/common/rust_allocator_shims.c
@@ -0,0 +1,45 @@
+// Part of the Crubit project, under the Apache License v2.0 with LLVM
+// Exceptions. See /LICENSE for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+
+#include <stddef.h>
+#include <stdlib.h>
+
+// Our temporary, local solution to
+// https://github.com/rust-lang/rust/issues/73632.
+
+void *__rdl_alloc(size_t, size_t);
+void __rdl_dealloc(void *);
+void *__rdl_realloc(void *, size_t, size_t, size_t);
+void *__rdl_alloc_zeroed(size_t, size_t);
+
+// https://stdrs.dev/nightly/x86_64-unknown-linux-gnu/alloc/alloc/index.html
+
+__attribute__((weak))
+void *__rust_alloc(size_t size, size_t align) {
+ return __rdl_alloc(size, align);
+}
+
+__attribute__((weak))
+void __rust_dealloc(void *ptr) {
+ __rdl_dealloc(ptr);
+}
+
+__attribute__((weak))
+void *__rust_realloc(void *ptr, size_t old_size, size_t align,
+ size_t new_size) {
+ return __rdl_realloc(ptr, old_size, align, new_size);
+}
+
+__attribute__((weak))
+void *__rust_alloc_zeroed(size_t size, size_t align) {
+ return __rdl_alloc_zeroed(size, align);
+}
+
+__attribute__((weak))
+void *__rust_alloc_error_handler(size_t size, size_t align) {
+ (void)size;
+ (void)align;
+
+ abort();
+}
