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report_fatal_error can't use errs(), because errs() can call

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into report_fatal_error.  Just blast the string to stderr with write(2)
and hope for the best!  Part of rdar://8318441

llvm-svn: 111320
This commit is contained in:
Chris Lattner 2010-08-17 23:03:53 +00:00
parent 08e9f0250a
commit 659fd704e8
1 changed files with 26 additions and 8 deletions
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34
lib/Support/ErrorHandling.cpp
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@ -18,8 +18,18 @@
#include "llvm/Support/raw_ostream.h"
#include "llvm/System/Signals.h"
#include "llvm/System/Threading.h"
#include "llvm/ADT/SmallVector.h"
#include <cassert>
#include <cstdlib>
#if defined(HAVE_UNISTD_H)
# include <unistd.h>
#endif
#if defined(_MSC_VER)
# include <io.h>
# include <fcntl.h>
#endif
using namespace llvm;
using namespace std;
@ -39,19 +49,27 @@ void llvm::remove_fatal_error_handler() {
ErrorHandler = 0;
}
void llvm::report_fatal_error(const char *reason) {
report_fatal_error(Twine(reason));
void llvm::report_fatal_error(const char *Reason) {
report_fatal_error(Twine(Reason));
}
void llvm::report_fatal_error(const std::string &reason) {
report_fatal_error(Twine(reason));
void llvm::report_fatal_error(const std::string &Reason) {
report_fatal_error(Twine(Reason));
}
void llvm::report_fatal_error(const Twine &reason) {
if (!ErrorHandler) {
errs() << "LLVM ERROR: " << reason << "\n";
void llvm::report_fatal_error(const Twine &Reason) {
if (ErrorHandler) {
ErrorHandler(ErrorHandlerUserData, Reason.str());
} else {
ErrorHandler(ErrorHandlerUserData, reason.str());
// Blast the result out to stderr. We don't try hard to make sure this
// succeeds (e.g. handling EINTR) and we can't use errs() here because
// raw ostreams can call report_fatal_error.
SmallVector<char, 64> Buffer;
StringRef ReasonStr = Reason.toStringRef(Buffer);
::write(2, "LLVM ERROR: ", 12);
::write(2, ReasonStr.data(), ReasonStr.size());
::write(2, "\n", 1);
}
// If we reached here, we are failing ungracefully. Run the interrupt handlers