| // Copyright 2012 The Chromium Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "partition_alloc/partition_alloc_base/debug/stack_trace.h" |
| |
| #include "build/build_config.h" |
| #include "partition_alloc/partition_alloc_base/debug/debugging_buildflags.h" |
| |
| namespace partition_alloc::internal::base::debug { |
| |
| size_t CollectStackTrace(const void** trace, size_t count) { |
| // NOTE: This code MUST be async-signal safe (it's used by in-process |
| // stack dumping signal handler). NO malloc or stdio is allowed here. |
| |
| #if BUILDFLAG(PA_CAN_UNWIND_WITH_FRAME_POINTERS) |
| // Regarding Linux and Android, backtrace API internally invokes malloc(). |
| // So the API is not available inside memory allocation. Instead try tracing |
| // using frame pointers. |
| return base::debug::TraceStackFramePointers(trace, count, 0); |
| #else |
| // Not able to obtain stack traces. |
| return 0; |
| #endif |
| } |
| |
| } // namespace partition_alloc::internal::base::debug |
