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89 lines
3.8 KiB
C++
89 lines
3.8 KiB
C++
//===-- sanitizer/lsan_interface.h ------------------------------*- C++ -*-===//
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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 LeakSanitizer.
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//
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// Public interface header.
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//===----------------------------------------------------------------------===//
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#ifndef SANITIZER_LSAN_INTERFACE_H
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#define SANITIZER_LSAN_INTERFACE_H
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#include <sanitizer/common_interface_defs.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Allocations made between calls to __lsan_disable() and __lsan_enable() will
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// be treated as non-leaks. Disable/enable pairs may be nested.
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void __lsan_disable(void);
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void __lsan_enable(void);
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// The heap object into which p points will be treated as a non-leak.
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void __lsan_ignore_object(const void *p);
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// Memory regions registered through this interface will be treated as sources
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// of live pointers during leak checking. Useful if you store pointers in
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// mapped memory.
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// Points of note:
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// - __lsan_unregister_root_region() must be called with the same pointer and
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// size that have earlier been passed to __lsan_register_root_region()
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// - LSan will skip any inaccessible memory when scanning a root region. E.g.,
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// if you map memory within a larger region that you have mprotect'ed, you can
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// register the entire large region.
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// - the implementation is not optimized for performance. This interface is
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// intended to be used for a small number of relatively static regions.
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void __lsan_register_root_region(const void *p, size_t size);
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void __lsan_unregister_root_region(const void *p, size_t size);
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// Check for leaks now. This function behaves identically to the default
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// end-of-process leak check. In particular, it will terminate the process if
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// leaks are found and the exitcode runtime flag is non-zero.
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// Subsequent calls to this function will have no effect and end-of-process
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// leak check will not run. Effectively, end-of-process leak check is moved to
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// the time of first invocation of this function.
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// By calling this function early during process shutdown, you can instruct
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// LSan to ignore shutdown-only leaks which happen later on.
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void __lsan_do_leak_check(void);
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// Check for leaks now. Returns zero if no leaks have been found or if leak
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// detection is disabled, non-zero otherwise.
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// This function may be called repeatedly, e.g. to periodically check a
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// long-running process. It prints a leak report if appropriate, but does not
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// terminate the process. It does not affect the behavior of
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// __lsan_do_leak_check() or the end-of-process leak check, and is not
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// affected by them.
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int __lsan_do_recoverable_leak_check(void);
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// The user may optionally provide this function to disallow leak checking
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// for the program it is linked into (if the return value is non-zero). This
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// function must be defined as returning a constant value; any behavior beyond
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// that is unsupported.
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// To avoid dead stripping, you may need to define this function with
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// __attribute__((used))
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int __lsan_is_turned_off(void);
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// This function may be optionally provided by user and should return
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// a string containing LSan runtime options. See lsan_flags.inc for details.
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const char *__lsan_default_options(void);
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// This function may be optionally provided by the user and should return
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// a string containing LSan suppressions.
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const char *__lsan_default_suppressions(void);
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#ifdef __cplusplus
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} // extern "C"
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namespace __lsan {
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class ScopedDisabler {
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public:
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ScopedDisabler() { __lsan_disable(); }
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~ScopedDisabler() { __lsan_enable(); }
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};
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} // namespace __lsan
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#endif
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#endif // SANITIZER_LSAN_INTERFACE_H
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