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The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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109 lines
3.4 KiB
109 lines
3.4 KiB
// |
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// |
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// Copyright 2020 the gRPC authors. |
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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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// |
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// |
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#include "test/core/util/stack_tracer.h" |
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#include <cstdio> |
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#include <string> |
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#include "absl/debugging/stacktrace.h" |
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#include "absl/debugging/symbolize.h" |
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#include <grpc/support/port_platform.h> |
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#include "src/core/lib/gprpp/examine_stack.h" |
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namespace { |
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constexpr int kPrintfPointerFieldWidth = 2 + 2 * sizeof(void*); |
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void DumpPCAndFrameSizeAndSymbol(void (*writerfn)(const char*, void*), |
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void* writerfn_arg, void* pc, |
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void* symbolize_pc, int framesize, |
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const char* const prefix) { |
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char tmp[1024]; |
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const char* symbol = "(unknown)"; |
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if (absl::Symbolize(symbolize_pc, tmp, sizeof(tmp))) { |
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symbol = tmp; |
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} |
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char buf[1024]; |
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if (framesize <= 0) { |
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snprintf(buf, sizeof(buf), "%s@ %*p (unknown) %s\n", prefix, |
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kPrintfPointerFieldWidth, pc, symbol); |
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} else { |
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snprintf(buf, sizeof(buf), "%s@ %*p %9d %s\n", prefix, |
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kPrintfPointerFieldWidth, pc, framesize, symbol); |
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} |
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writerfn(buf, writerfn_arg); |
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} |
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void DumpPCAndFrameSize(void (*writerfn)(const char*, void*), |
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void* writerfn_arg, void* pc, int framesize, |
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const char* const prefix) { |
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char buf[100]; |
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if (framesize <= 0) { |
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snprintf(buf, sizeof(buf), "%s@ %*p (unknown)\n", prefix, |
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kPrintfPointerFieldWidth, pc); |
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} else { |
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snprintf(buf, sizeof(buf), "%s@ %*p %9d\n", prefix, |
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kPrintfPointerFieldWidth, pc, framesize); |
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} |
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writerfn(buf, writerfn_arg); |
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} |
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void DumpStackTrace(void* const stack[], int frame_sizes[], int depth, |
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bool symbolize_stacktrace, |
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void (*writerfn)(const char*, void*), void* writerfn_arg) { |
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for (int i = 0; i < depth; i++) { |
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if (symbolize_stacktrace) { |
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DumpPCAndFrameSizeAndSymbol(writerfn, writerfn_arg, stack[i], |
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reinterpret_cast<char*>(stack[i]) - 1, |
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frame_sizes[i], " "); |
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} else { |
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DumpPCAndFrameSize(writerfn, writerfn_arg, stack[i], frame_sizes[i], |
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" "); |
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} |
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} |
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} |
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void DebugWriteToString(const char* data, void* str) { |
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reinterpret_cast<std::string*>(str)->append(data); |
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} |
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} // namespace |
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namespace grpc_core { |
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namespace testing { |
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std::string GetCurrentStackTrace() { |
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std::string result = "Stack trace:\n"; |
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constexpr int kNumStackFrames = 32; |
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void* stack[kNumStackFrames]; |
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int frame_sizes[kNumStackFrames]; |
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int depth = absl::GetStackFrames(stack, frame_sizes, kNumStackFrames, 1); |
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DumpStackTrace(stack, frame_sizes, depth, true, DebugWriteToString, &result); |
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return result; |
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} |
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void InitializeStackTracer(const char* argv0) { |
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absl::InitializeSymbolizer(argv0); |
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SetCurrentStackTraceProvider(&GetCurrentStackTrace); |
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} |
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} // namespace testing |
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} // namespace grpc_core
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