| 1 | //===-- segv_handler.h ------------------------------------------*- C++ -*-===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | #ifndef GWP_ASAN_OPTIONAL_SEGV_HANDLER_H_ |
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| 10 | #define GWP_ASAN_OPTIONAL_SEGV_HANDLER_H_ |
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| 11 | |
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| 12 | #include "gwp_asan/guarded_pool_allocator.h" |
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| 13 | #include "gwp_asan/optional/backtrace.h" |
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| 14 | #include "gwp_asan/optional/printf.h" |
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| 15 | |
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| 16 | namespace gwp_asan { |
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| 17 | namespace segv_handler { |
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| 18 | // Install the SIGSEGV crash handler for printing use-after-free and heap- |
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| 19 | // buffer-{under|over}flow exceptions if the user asked for it. This is platform |
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| 20 | // specific as even though POSIX and Windows both support registering handlers |
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| 21 | // through signal(), we have to use platform-specific signal handlers to obtain |
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| 22 | // the address that caused the SIGSEGV exception. GPA->init() must be called |
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| 23 | // before this function. |
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| 24 | void installSignalHandlers(gwp_asan::GuardedPoolAllocator *GPA, Printf_t Printf, |
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| 25 | gwp_asan::backtrace::PrintBacktrace_t PrintBacktrace, |
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| 26 | gwp_asan::backtrace::SegvBacktrace_t SegvBacktrace, |
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| 27 | bool Recoverable = false); |
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| 28 | |
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| 29 | // Uninistall the signal handlers, test-only. |
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| 30 | void uninstallSignalHandlers(); |
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| 31 | } // namespace segv_handler |
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| 32 | } // namespace gwp_asan |
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| 33 | |
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| 34 | #endif // GWP_ASAN_OPTIONAL_SEGV_HANDLER_H_ |
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| 35 | |
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