40733a8024
Summary: This change removes `__tsan::StackTrace` class. There are now three alternatives: # Lightweight `__sanitizer::StackTrace`, which doesn't own a buffer of PCs. It is used in functions that need stack traces in read-only mode, and helps to prevent unnecessary allocations/copies (e.g. for StackTraces fetched from StackDepot). # `__sanitizer::BufferedStackTrace`, which stores buffer of PCs in a constant array. It is used in TraceHeader (non-Go version) # `__tsan::VarSizeStackTrace`, which owns buffer of PCs, dynamically allocated via TSan internal allocator. Test Plan: compiler-rt test suite Reviewers: dvyukov, kcc Reviewed By: kcc Subscribers: llvm-commits, kcc Differential Revision: http://reviews.llvm.org/D6004 llvm-svn: 221194
40 lines
1.1 KiB
C++
40 lines
1.1 KiB
C++
//===-- tsan_stack_trace.h --------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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//
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// This file is a part of ThreadSanitizer (TSan), a race detector.
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//
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//===----------------------------------------------------------------------===//
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#ifndef TSAN_STACK_TRACE_H
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#define TSAN_STACK_TRACE_H
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#include "sanitizer_common/sanitizer_stacktrace.h"
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#include "tsan_defs.h"
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namespace __tsan {
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// StackTrace which calls malloc/free to allocate the buffer for
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// addresses in stack traces.
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struct VarSizeStackTrace : public StackTrace {
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uptr *trace_buffer; // Owned.
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VarSizeStackTrace();
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~VarSizeStackTrace();
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void Init(const uptr *pcs, uptr cnt, uptr extra_top_pc = 0);
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private:
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void ResizeBuffer(uptr new_size);
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VarSizeStackTrace(const VarSizeStackTrace &);
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void operator=(const VarSizeStackTrace &);
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};
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} // namespace __tsan
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#endif // TSAN_STACK_TRACE_H
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