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//===-- tsan_printf.cc ----------------------------------------------------===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is a part of ThreadSanitizer (TSan), a race detector.
//
//===----------------------------------------------------------------------===//
#include "sanitizer_common/sanitizer_common.h"
#include "sanitizer_common/sanitizer_libc.h"
#include "tsan_defs.h"
#include "tsan_mman.h"
#include "tsan_platform.h"
#include <stdarg.h> // va_list
namespace __sanitizer {
int VSNPrintf(char *buff, int buff_length, const char *format, va_list args);
} // namespace __sanitizer
namespace __tsan {
void TsanPrintf(const char *format, ...) {
ScopedInRtl in_rtl;
const uptr kMaxLen = 16 * 1024;
InternalScopedBuffer<char> buffer(kMaxLen);
va_list args;
va_start(args, format);
uptr len = VSNPrintf(buffer.data(), buffer.size(), format, args);
va_end(args);
internal_write(CTX() ? flags()->log_fileno : 2,
buffer.data(), len < buffer.size() ? len : buffer.size() - 1);
}
} // namespace __tsan
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