compiler-rt/lib/memprof/memprof_preinit.cpp

   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