xref: /freebsd/contrib/llvm-project/compiler-rt/lib/sanitizer_common/sanitizer_stoptheworld_fuchsia.cpp (revision e8d8bef961a50d4dc22501cde4fb9fb0be1b2532)
1 //===-- sanitizer_stoptheworld_fuchsia.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 // See sanitizer_stoptheworld.h for details.
10 //
11 //===---------------------------------------------------------------------===//
12 
13 #include "sanitizer_platform.h"
14 
15 #if SANITIZER_FUCHSIA
16 
17 #include <zircon/sanitizer.h>
18 
19 #include "sanitizer_stoptheworld.h"
20 #include "sanitizer_stoptheworld_fuchsia.h"
21 
22 namespace __sanitizer {
23 
24 // The Fuchsia implementation stops the world but doesn't offer a real
25 // SuspendedThreadsList argument.  This is enough for ASan's use case,
26 // and LSan does not use this API on Fuchsia.
StopTheWorld(StopTheWorldCallback callback,void * argument)27 void StopTheWorld(StopTheWorldCallback callback, void *argument) {
28   struct Params {
29     StopTheWorldCallback callback;
30     void *argument;
31   } params = {callback, argument};
32   __sanitizer_memory_snapshot(
33       nullptr, nullptr, nullptr, nullptr,
34       [](zx_status_t, void *data) {
35         auto params = reinterpret_cast<Params *>(data);
36         params->callback(SuspendedThreadsListFuchsia(), params->argument);
37       },
38       &params);
39 }
40 
41 }  // namespace __sanitizer
42 
43 #endif  // SANITIZER_FUCHSIA
44