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48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
// Copyright 2019 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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// The sandbox2::StackTrace class provides static methods useful when analyzing
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// call-stack of the process. It uses libunwind-ptrace, so the process must be
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// in a stopped state to call those methods.
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#ifndef SANDBOXED_API_SANDBOX2_STACK_TRACE_H_
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#define SANDBOXED_API_SANDBOX2_STACK_TRACE_H_
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#include <sys/types.h>
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#include <cstddef>
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#include <memory>
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#include <string>
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#include "sandboxed_api/sandbox2/mounts.h"
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#include "sandboxed_api/sandbox2/policy.h"
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#include "sandboxed_api/sandbox2/regs.h"
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#include "sandboxed_api/sandbox2/unwind/unwind.pb.h"
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namespace sandbox2 {
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// Maximum depth of analyzed call stack.
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constexpr size_t kDefaultMaxFrames = 200;
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// Returns the stack-trace of the PID=pid, delimited by the delim argument.
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std::string GetStackTrace(const Regs* regs, const Mounts& mounts,
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const std::string& delim = " ");
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// Similar to GetStackTrace() but without using the sandbox to isolate
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// libunwind.
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std::string UnsafeGetStackTrace(pid_t pid, const std::string& delim = " ");
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} // namespace sandbox2
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#endif // SANDBOXED_API_SANDBOX2_STACK_TRACE_H_
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