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#include "yassert.h"
#include "backtrace.h"
#include "guard.h"
#include "spinlock.h"
#include "src_root.h"
#include <util/datetime/base.h>
#include <util/generic/singleton.h>
#include <util/generic/strbuf.h>
#include <util/generic/string.h>
#include <util/stream/output.h>
#include <util/stream/str.h>
#include <util/string/printf.h>
#include <cstdlib>
#include <stdarg.h>
#include <stdio.h>
#ifdef CLANG_COVERAGE
extern "C" {
// __llvm_profile_write_file may not be provided if the executable target uses NO_CLANG_COVERAGE() macro and
// arrives as test's dependency via DEPENDS() macro.
// That's why we provide a weak no-op implementation for __llvm_profile_write_file,
// which is used below in the code, to correctly save codecoverage profile before program exits using abort().
Y_WEAK int __llvm_profile_write_file(void) {
return 0;
}
}
#endif
namespace {
struct TPanicLockHolder: public TAdaptiveLock {
};
} // namespace
namespace NPrivate {
[[noreturn]] Y_NO_INLINE void InternalPanicImpl(int line, const char* function, const char* expr, int, int, int, const TStringBuf file, const char* errorMessage, size_t errorMessageSize) noexcept;
} // namespace NPrivate
void ::NPrivate::Panic(const TStaticBuf& file, int line, const char* function, const char* expr, const char* format, ...) noexcept {
try {
// We care of panic of first failed thread only
// Otherwise stderr could contain multiple messages and stack traces shuffled
auto guard = Guard(*Singleton<TPanicLockHolder>());
TString errorMsg;
va_list args;
va_start(args, format);
// format has " " prefix to mute GCC warning on empty format
vsprintf(errorMsg, format[0] == ' ' ? format + 1 : format, args);
va_end(args);
constexpr int abiPlaceholder = 0;
::NPrivate::InternalPanicImpl(line, function, expr, abiPlaceholder, abiPlaceholder, abiPlaceholder, file.As<TStringBuf>(), errorMsg.c_str(), errorMsg.size());
} catch (...) {
// ¯\_(ツ)_/¯
}
abort();
}
namespace NPrivate {
[[noreturn]] Y_NO_INLINE void InternalPanicImpl(int line, const char* function, const char* expr, int, int, int, const TStringBuf file, const char* errorMessage, size_t errorMessageSize) noexcept try {
TStringBuf errorMsg{errorMessage, errorMessageSize};
const TString now = TInstant::Now().ToStringLocal();
TString r;
TStringOutput o(r);
if (expr) {
o << "VERIFY failed (" << now << "): " << errorMsg << Endl;
} else {
o << "FAIL (" << now << "): " << errorMsg << Endl;
}
o << " " << file << ":" << line << Endl;
if (expr) {
o << " " << function << "(): requirement " << expr << " failed" << Endl;
} else {
o << " " << function << "() failed" << Endl;
}
Cerr << r << Flush;
#ifndef WITH_VALGRIND
PrintBackTrace();
#endif
#ifdef CLANG_COVERAGE
if (__llvm_profile_write_file()) {
Cerr << "Failed to dump clang coverage" << Endl;
}
#endif
abort();
} catch (...) {
abort();
}
} // namespace NPrivate
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