xref: /freebsd/contrib/llvm-project/compiler-rt/lib/memprof/memprof_preinit.cpp (revision acb1f1269c6f4ff89a0d28ba742f6687e9ef779d)
1 //===-- memprof_preinit.cpp ----------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // This file is a part of MemProfiler, a memory profiler.
10 //
11 // Call __memprof_init at the very early stage of process startup.
12 //===----------------------------------------------------------------------===//
13 #include "memprof_internal.h"
14 
15 using namespace __memprof;
16 
17 #if SANITIZER_CAN_USE_PREINIT_ARRAY
18 // The symbol is called __local_memprof_preinit, because it's not intended to
19 // be exported. This code linked into the main executable when -fmemory-profile
20 // is in the link flags. It can only use exported interface functions.
21 __attribute__((section(".preinit_array"),
22                used)) void (*__local_memprof_preinit)(void) = __memprof_preinit;
23 #endif
24