make/data/asan/asan_default_options.c

/*
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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#ifndef ADDRESS_SANITIZER
#error "Build misconfigured, preprocessor macro ADDRESS_SANITIZER should be defined"
#endif

#ifndef __has_attribute
#define __has_attribute(x) 0
#endif

#if (defined(__GNUC__) && !defined(__clang__)) || __has_attribute(visibility)
#define ATTRIBUTE_DEFAULT_VISIBILITY __attribute__((visibility("default")))
#elif defined(_MSC_VER)
#define ATTRIBUTE_DEFAULT_VISIBILITY __declspec(dllexport)
#else
#define ATTRIBUTE_DEFAULT_VISIBILITY
#endif

#if (defined(__GNUC__) && !defined(__clang__)) || __has_attribute(used)
#define ATTRIBUTE_USED __attribute__((used))
#else
#define ATTRIBUTE_USED
#endif

#if defined(_MSC_VER)
#define CDECL __cdecl
#else
#define CDECL
#endif

// Override weak symbol exposed by ASan to override default options. This is called by ASan
// extremely early during library loading, before main is called. We need to override the default
// options because LSan is enabled by default and Hotspot is not yet compatible with it.
// Additionally we need to prevent ASan from handling SIGSEGV, so that Hotspot's crash handler is
// used. You can override these options by setting the environment variable ASAN_OPTIONS.
ATTRIBUTE_DEFAULT_VISIBILITY ATTRIBUTE_USED const char* CDECL __asan_default_options() {
  return
#ifdef LEAK_SANITIZER
    "leak_check_at_exit=0,"
#else
    // ASan bundles LSan, however we only support LSan when it is explicitly requested during
    // configuration. Thus we disable it to match if it was not requested.
    "detect_leaks=0,"
#endif
    "print_suppressions=0,"
    "handle_segv=0,"
    // See https://github.com/google/sanitizers/issues/1322. Hopefully this is resolved
    // at some point and we can remove this option.
    "intercept_tls_get_addr=0";
}