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d04a8d4b33
Sooooo many of these had incorrect or strange main module includes. I have manually inspected all of these, and fixed the main module include to be the nearest plausible thing I could find. If you own or care about any of these source files, I encourage you to take some time and check that these edits were sensible. I can't have broken anything (I strictly added headers, and reordered them, never removed), but they may not be the headers you'd really like to identify as containing the API being implemented. Many forward declarations and missing includes were added to a header files to allow them to parse cleanly when included first. The main module rule does in fact have its merits. =] git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@169131 91177308-0d34-0410-b5e6-96231b3b80d8
100 lines
3.2 KiB
C++
100 lines
3.2 KiB
C++
//===- lib/Support/ErrorHandling.cpp - Callbacks for errors ---------------===//
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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 defines an API used to indicate fatal error conditions. Non-fatal
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// errors (most of them) should be handled through LLVMContext.
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/Support/ErrorHandling.h"
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#include "llvm/ADT/SmallVector.h"
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#include "llvm/ADT/Twine.h"
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#include "llvm/Config/config.h"
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#include "llvm/Support/Debug.h"
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#include "llvm/Support/Signals.h"
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#include "llvm/Support/Threading.h"
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#include "llvm/Support/raw_ostream.h"
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#include <cassert>
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#include <cstdlib>
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#if defined(HAVE_UNISTD_H)
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# include <unistd.h>
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#endif
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#if defined(_MSC_VER)
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# include <io.h>
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# include <fcntl.h>
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#endif
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using namespace llvm;
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static fatal_error_handler_t ErrorHandler = 0;
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static void *ErrorHandlerUserData = 0;
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void llvm::install_fatal_error_handler(fatal_error_handler_t handler,
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void *user_data) {
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assert(!llvm_is_multithreaded() &&
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"Cannot register error handlers after starting multithreaded mode!\n");
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assert(!ErrorHandler && "Error handler already registered!\n");
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ErrorHandler = handler;
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ErrorHandlerUserData = user_data;
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}
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void llvm::remove_fatal_error_handler() {
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ErrorHandler = 0;
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}
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void llvm::report_fatal_error(const char *Reason) {
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report_fatal_error(Twine(Reason));
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}
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void llvm::report_fatal_error(const std::string &Reason) {
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report_fatal_error(Twine(Reason));
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}
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void llvm::report_fatal_error(StringRef Reason) {
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report_fatal_error(Twine(Reason));
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}
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void llvm::report_fatal_error(const Twine &Reason) {
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if (ErrorHandler) {
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ErrorHandler(ErrorHandlerUserData, Reason.str());
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} else {
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// Blast the result out to stderr. We don't try hard to make sure this
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// succeeds (e.g. handling EINTR) and we can't use errs() here because
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// raw ostreams can call report_fatal_error.
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SmallVector<char, 64> Buffer;
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raw_svector_ostream OS(Buffer);
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OS << "LLVM ERROR: " << Reason << "\n";
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StringRef MessageStr = OS.str();
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ssize_t written = ::write(2, MessageStr.data(), MessageStr.size());
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(void)written; // If something went wrong, we deliberately just give up.
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}
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// If we reached here, we are failing ungracefully. Run the interrupt handlers
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// to make sure any special cleanups get done, in particular that we remove
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// files registered with RemoveFileOnSignal.
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sys::RunInterruptHandlers();
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exit(1);
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}
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void llvm::llvm_unreachable_internal(const char *msg, const char *file,
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unsigned line) {
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// This code intentionally doesn't call the ErrorHandler callback, because
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// llvm_unreachable is intended to be used to indicate "impossible"
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// situations, and not legitimate runtime errors.
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if (msg)
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dbgs() << msg << "\n";
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dbgs() << "UNREACHABLE executed";
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if (file)
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dbgs() << " at " << file << ":" << line;
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dbgs() << "!\n";
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abort();
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}
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