39 lines
1.2 KiB
C++
39 lines
1.2 KiB
C++
//===-- tsan_printf.cc ----------------------------------------------------===//
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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 is a part of ThreadSanitizer (TSan), a race detector.
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//
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//===----------------------------------------------------------------------===//
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#include "sanitizer_common/sanitizer_common.h"
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#include "sanitizer_common/sanitizer_libc.h"
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#include "tsan_defs.h"
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#include "tsan_mman.h"
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#include "tsan_platform.h"
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#include <stdarg.h> // va_list
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namespace __sanitizer {
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int VSNPrintf(char *buff, int buff_length, const char *format, va_list args);
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} // namespace __sanitizer
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namespace __tsan {
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void TsanPrintf(const char *format, ...) {
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ScopedInRtl in_rtl;
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const uptr kMaxLen = 16 * 1024;
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InternalScopedBuffer<char> buffer(kMaxLen);
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va_list args;
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va_start(args, format);
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uptr len = VSNPrintf(buffer.data(), buffer.size(), format, args);
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va_end(args);
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internal_write(CTX() ? flags()->log_fileno : 2,
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buffer.data(), len < buffer.size() ? len : buffer.size() - 1);
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}
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} // namespace __tsan
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