67 lines
2.2 KiB
C++
67 lines
2.2 KiB
C++
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//===-- LLDBAssert.cpp ----------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Utility/LLDBAssert.h"
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#include "llvm/Config/llvm-config.h"
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#include "llvm/Support/FormatVariadic.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/raw_ostream.h"
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#if LLVM_SUPPORT_XCODE_SIGNPOSTS
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#include <os/log.h>
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#endif
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#include <atomic>
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namespace lldb_private {
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static void DefaultAssertCallback(llvm::StringRef message,
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llvm::StringRef backtrace,
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llvm::StringRef prompt) {
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llvm::errs() << message << '\n';
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llvm::errs() << backtrace; // Backtrace includes a newline.
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llvm::errs() << prompt << '\n';
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}
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static std::atomic<LLDBAssertCallback> g_lldb_assert_callback =
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&DefaultAssertCallback;
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void lldb_assert(bool expression, const char *expr_text, const char *func,
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const char *file, unsigned int line) {
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if (LLVM_LIKELY(expression))
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return;
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#if LLVM_SUPPORT_XCODE_SIGNPOSTS
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if (__builtin_available(macos 10.12, iOS 10, tvOS 10, watchOS 3, *)) {
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os_log_fault(OS_LOG_DEFAULT,
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"Assertion failed: (%s), function %s, file %s, line %u\n",
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expr_text, func, file, line);
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}
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#endif
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// Print a warning and encourage the user to file a bug report, similar to
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// LLVM’s crash handler, and then return execution.
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std::string buffer;
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llvm::raw_string_ostream backtrace(buffer);
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llvm::sys::PrintStackTrace(backtrace);
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(*g_lldb_assert_callback.load())(
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llvm::formatv("Assertion failed: ({0}), function {1}, file {2}, line {3}",
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expr_text, func, file, line)
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.str(),
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backtrace.str(),
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"Please file a bug report against lldb reporting this failure log, and "
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"as many details as possible");
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}
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void SetLLDBAssertCallback(LLDBAssertCallback callback) {
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g_lldb_assert_callback.exchange(callback);
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}
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} // namespace lldb_private
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