-
Notifications
You must be signed in to change notification settings - Fork 11.5k
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
[nsan] Add nsan_preinit.cpp and make it static library only
#94322 defines .preinit_array to initialize nsan early. DT_PREINIT_ARRAY can only be used with the main executable. GNU ld would complain when a DSO has .preinit_array .
- Loading branch information
Showing
4 changed files
with
34 additions
and
7 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,21 @@ | ||
//===- nsan_preinit.cpp ---------------------------------------------------===// | ||
// | ||
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. | ||
// See https://llvm.org/LICENSE.txt for license information. | ||
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception | ||
// | ||
//===----------------------------------------------------------------------===// | ||
// | ||
// Call __nsan_init early using ELF DT_PREINIT_ARRAY. | ||
// | ||
//===----------------------------------------------------------------------===// | ||
|
||
#include "nsan/nsan.h" | ||
#include "sanitizer_common/sanitizer_internal_defs.h" | ||
|
||
#if SANITIZER_CAN_USE_PREINIT_ARRAY | ||
|
||
__attribute__((section(".preinit_array"), used)) static auto nsan_preinit = | ||
__nsan_init; | ||
|
||
#endif |