31 typedef __asan_global Global;  typedef
34   const Global *g;
43   Global g;
53   Global *g_first, *g_last;
58 ALWAYS_INLINE void PoisonShadowForGlobal(const Global *g, u8 value) {  in PoisonShadowForGlobal()
62 ALWAYS_INLINE void PoisonRedZones(const Global &g) {  in PoisonRedZones()
82 static void ReportGlobal(const Global &g, const char *prefix) {  in ReportGlobal()
86       "%s Global[%p]: beg=%p size=%zu/%zu name=%s source=%s module=%s "  in ReportGlobal()
96     // Fallback to Global::gcc_location  in ReportGlobal()
101 static u32 FindRegistrationSite(const Global *g) {  in FindRegistrationSite()
112 int GetGlobalsForAddress(uptr addr, Global *globals, u32 *reg_sites,  in GetGlobalsForAddress()
118     const Global &g = *l->g;  in GetGlobalsForAddress()
138 // Check ODR violation for given global G via special ODR indicator. We use
139 // this method in case compiler instruments global variables through their
141 static void CheckODRViolationViaIndicator(const Global *g) {  in CheckODRViolationViaIndicator()
161 // Check ODR violation for given global G by checking if it's already poisoned.
162 // We use this method in case compiler doesn't use private aliases for global
164 static void CheckODRViolationViaPoisoning(const Global *g) {  in CheckODRViolationViaPoisoning()
166     // This check may not be enough: if the first global is much larger  in CheckODRViolationViaPoisoning()
167     // the entire redzone of the second global may be within the first global.  in CheckODRViolationViaPoisoning()
178 // Clang provides two different ways for global variables protection:
179 // it can poison the global itself or its private alias. In former
182 // global, we have ODR violation error.
185 // In either case, compiler provides a special odr_indicator field to Global
188 //      corresponding indicator variable for given global.
189 //   2) Zero. This means that we don't use private aliases for global variables
194 static inline bool UseODRIndicator(const Global *g) {  in UseODRIndicator()
198 // Register a global variable.
199 // This function may be called more than once for every global
201 static void RegisterGlobal(const Global *g) {  in RegisterGlobal()
208     Report("The following global variable is not properly aligned.\n");  in RegisterGlobal()
209     Report("This may happen if another global with the same name\n");  in RegisterGlobal()
211     Report("Or the global comes from a C file built w/o -fno-common.\n");  in RegisterGlobal()
242 static void UnregisterGlobal(const Global *g) {  in UnregisterGlobal()
252   // We unpoison the shadow memory for the global but we do not remove it from  in UnregisterGlobal()
270     const Global *g = &dyn_g.g;  in StopInitOrderChecking()
271     // Unpoison the whole global.  in StopInitOrderChecking()
292 // Check if the global is a zero-terminated ASCII string. If so, print it.
309     // Fallback to Global::gcc_location  in PrintGlobalLocation()
393       // If these are padding bytes, the rest of the global should be zero.  in __asan_register_globals()
427 // poisons all global variables not defined in this TU, so that a dynamic
428 // initializer can only touch global variables in the same TU.
442     const Global *g = &dyn_g.g;  in __asan_before_dynamic_init()
465     const Global *g = &dyn_g.g;  in __asan_after_dynamic_init()
467       // Unpoison the whole global.  in __asan_after_dynamic_init()