1 // RUN: %clang_cc1 -triple x86_64-linux -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN 2 // RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN 3 // RUN: %clang_cc1 -triple x86_64-linux -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN 4 // RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN 5 // 6 // Not all platforms support aliases - test for Linux only. 7 8 int global; // generate ctor for at least 1 global 9 int aliased_global; // KASAN ignored 10 extern int __attribute__((alias("aliased_global"))) __global_alias; 11 12 // Recursive alias: 13 int aliased_global_2; // KASAN ignored 14 extern int __attribute__((alias("aliased_global_2"))) global_alias_2; 15 extern int __attribute__((alias("global_alias_2"))) __global_alias_2_alias; 16 17 // Potential indirect alias: 18 struct input_device_id { 19 unsigned long keybit[24]; 20 unsigned long driver_info; 21 }; 22 struct input_device_id joydev_ids[] = { { {1}, 1234 } }; // KASAN ignored 23 extern struct input_device_id __attribute__((alias("joydev_ids"))) __mod_joydev_ids_device_table; 24 25 // ASAN: @aliased_global{{.*}} global { i32, [28 x i8] }{{.*}}, align 32 26 // ASAN: @aliased_global_2{{.*}} global { i32, [28 x i8] }{{.*}}, align 32 27 // ASAN: @joydev_ids{{.*}} global { {{.*}}[56 x i8] zeroinitializer }, align 32 28 // KASAN: @aliased_global{{.*}} global i32 29 // KASAN: @aliased_global_2{{.*}} global i32 30 // KASAN: @joydev_ids{{.*}} global [1 x {{.*}}i64 1234 }], align 16 31 32 // Check the aliases exist: 33 // CHECK: @__global_alias ={{.*}} alias 34 // CHECK: @global_alias_2 ={{.*}} alias 35 // CHECK: @__global_alias_2_alias ={{.*}} alias 36 // CHECK: @__mod_joydev_ids_device_table ={{.*}} alias 37 38 // CHECK-LABEL: define internal void @asan.module_ctor 39 // ASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 4) 40 // KASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 1) 41 // CHECK-NEXT: ret void 42 43 // CHECK-LABEL: define internal void @asan.module_dtor 44 // CHECK-NEXT: call void @__asan_unregister_globals 45 // CHECK-NEXT: ret void 46