mirror of
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197 lines
8.0 KiB
C++
197 lines
8.0 KiB
C++
//===-- asan_dll_thunk.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 AddressSanitizer, an address sanity checker.
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//
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// This file defines a family of thunks that should be statically linked into
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// the DLLs that have ASan instrumentation in order to delegate the calls to the
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// shared runtime that lives in the main binary.
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// See https://code.google.com/p/address-sanitizer/issues/detail?id=209 for the
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// details.
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//===----------------------------------------------------------------------===//
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// Only compile this code when buidling asan_dll_thunk.lib
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// Using #ifdef rather than relying on Makefiles etc.
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// simplifies the build procedure.
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#ifdef ASAN_DLL_THUNK
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// ----------------- Helper functions and macros --------------------- {{{1
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extern "C" {
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void *__stdcall GetModuleHandleA(const char *module_name);
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void *__stdcall GetProcAddress(void *module, const char *proc_name);
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void abort();
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}
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static void *getRealProcAddressOrDie(const char *name) {
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void *ret = GetProcAddress(GetModuleHandleA(0), name);
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if (!ret)
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abort();
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return ret;
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}
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#define WRAP_V_V(name) \
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extern "C" void name() { \
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typedef void (*fntype)(); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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fn(); \
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}
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#define WRAP_V_W(name) \
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extern "C" void name(void *arg) { \
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typedef void (*fntype)(void *arg); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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fn(arg); \
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}
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#define WRAP_V_WW(name) \
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extern "C" void name(void *arg1, void *arg2) { \
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typedef void (*fntype)(void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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fn(arg1, arg2); \
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}
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#define WRAP_V_WWW(name) \
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extern "C" void name(void *arg1, void *arg2, void *arg3) { \
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typedef void *(*fntype)(void *, void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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fn(arg1, arg2, arg3); \
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}
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#define WRAP_W_V(name) \
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extern "C" void *name() { \
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typedef void *(*fntype)(); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(); \
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}
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#define WRAP_W_W(name) \
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extern "C" void *name(void *arg) { \
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typedef void *(*fntype)(void *arg); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg); \
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}
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#define WRAP_W_WW(name) \
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extern "C" void *name(void *arg1, void *arg2) { \
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typedef void *(*fntype)(void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg1, arg2); \
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}
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#define WRAP_W_WWW(name) \
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extern "C" void *name(void *arg1, void *arg2, void *arg3) { \
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typedef void *(*fntype)(void *, void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg1, arg2, arg3); \
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}
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#define WRAP_W_WWWW(name) \
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extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4) { \
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typedef void *(*fntype)(void *, void *, void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg1, arg2, arg3, arg4); \
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}
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#define WRAP_W_WWWWW(name) \
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extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4, \
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void *arg5) { \
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typedef void *(*fntype)(void *, void *, void *, void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg1, arg2, arg3, arg4, arg5); \
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}
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#define WRAP_W_WWWWWW(name) \
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extern "C" void *name(void *arg1, void *arg2, void *arg3, void *arg4, \
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void *arg5, void *arg6) { \
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typedef void *(*fntype)(void *, void *, void *, void *, void *, void *); \
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static fntype fn = (fntype)getRealProcAddressOrDie(#name); \
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return fn(arg1, arg2, arg3, arg4, arg5, arg6); \
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}
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// }}}
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// ----------------- ASan own interface functions --------------------
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WRAP_W_V(__asan_should_detect_stack_use_after_return)
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extern "C" {
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int __asan_option_detect_stack_use_after_return;
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// Manually wrap __asan_init as we need to initialize
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// __asan_option_detect_stack_use_after_return afterwards.
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void __asan_init_v3() {
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typedef void (*fntype)();
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static fntype fn = (fntype)getRealProcAddressOrDie("__asan_init_v3");
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fn();
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__asan_option_detect_stack_use_after_return =
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(__asan_should_detect_stack_use_after_return() != 0);
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}
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}
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WRAP_V_V(__asan_handle_no_return)
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WRAP_V_W(__asan_report_store1)
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WRAP_V_W(__asan_report_store2)
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WRAP_V_W(__asan_report_store4)
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WRAP_V_W(__asan_report_store8)
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WRAP_V_W(__asan_report_store16)
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WRAP_V_WW(__asan_report_store_n)
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WRAP_V_W(__asan_report_load1)
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WRAP_V_W(__asan_report_load2)
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WRAP_V_W(__asan_report_load4)
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WRAP_V_W(__asan_report_load8)
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WRAP_V_W(__asan_report_load16)
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WRAP_V_WW(__asan_report_load_n)
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WRAP_V_WW(__asan_register_globals)
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WRAP_V_WW(__asan_unregister_globals)
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WRAP_W_WW(__asan_stack_malloc_0)
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WRAP_W_WW(__asan_stack_malloc_1)
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WRAP_W_WW(__asan_stack_malloc_2)
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WRAP_W_WW(__asan_stack_malloc_3)
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WRAP_W_WW(__asan_stack_malloc_4)
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WRAP_W_WW(__asan_stack_malloc_5)
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WRAP_W_WW(__asan_stack_malloc_6)
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WRAP_W_WW(__asan_stack_malloc_7)
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WRAP_W_WW(__asan_stack_malloc_8)
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WRAP_W_WW(__asan_stack_malloc_9)
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WRAP_W_WW(__asan_stack_malloc_10)
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WRAP_V_WWW(__asan_stack_free_0)
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WRAP_V_WWW(__asan_stack_free_1)
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WRAP_V_WWW(__asan_stack_free_2)
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WRAP_V_WWW(__asan_stack_free_4)
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WRAP_V_WWW(__asan_stack_free_5)
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WRAP_V_WWW(__asan_stack_free_6)
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WRAP_V_WWW(__asan_stack_free_7)
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WRAP_V_WWW(__asan_stack_free_8)
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WRAP_V_WWW(__asan_stack_free_9)
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WRAP_V_WWW(__asan_stack_free_10)
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// TODO(timurrrr): Add more interface functions on the as-needed basis.
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// ----------------- Memory allocation functions ---------------------
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WRAP_V_W(free)
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WRAP_V_WW(_free_dbg)
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WRAP_W_W(malloc)
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WRAP_W_WWWW(_malloc_dbg)
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WRAP_W_WW(calloc)
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WRAP_W_WWWWW(_calloc_dbg)
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WRAP_W_WWW(_calloc_impl)
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WRAP_W_WW(realloc)
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WRAP_W_WWW(_realloc_dbg)
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WRAP_W_WWW(_recalloc)
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WRAP_W_W(_msize)
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// TODO(timurrrr): Do we need to add _Crt* stuff here? (see asan_malloc_win.cc).
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#endif // ASAN_DLL_THUNK
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