46 lines · cpp
1// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN2// RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN3// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN4// RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN5//6// Not all platforms support aliases - test for Linux only.7 8int global; // generate ctor for at least 1 global9int aliased_global; // KASAN ignored10extern int __attribute__((alias("aliased_global"))) __global_alias;11 12// Recursive alias:13int aliased_global_2; // KASAN ignored14extern int __attribute__((alias("aliased_global_2"))) global_alias_2;15extern int __attribute__((alias("global_alias_2"))) __global_alias_2_alias;16 17// Potential indirect alias:18struct input_device_id {19 unsigned long keybit[24];20 unsigned long driver_info;21};22struct input_device_id joydev_ids[] = { { {1}, 1234 } }; // KASAN ignored23extern struct input_device_id __attribute__((alias("joydev_ids"))) __mod_joydev_ids_device_table;24 25// ASAN: @aliased_global{{.*}} global { i32, [28 x i8] }{{.*}}, align 3226// ASAN: @aliased_global_2{{.*}} global { i32, [28 x i8] }{{.*}}, align 3227// ASAN: @joydev_ids{{.*}} global { {{.*}}[56 x i8] zeroinitializer }, align 3228// KASAN: @aliased_global{{.*}} global i3229// KASAN: @aliased_global_2{{.*}} global i3230// KASAN: @joydev_ids{{.*}} global [1 x {{.*}}i64 1234 }], align 1631 32// Check the aliases exist:33// CHECK: @__global_alias ={{.*}} alias34// CHECK: @global_alias_2 ={{.*}} alias35// CHECK: @__global_alias_2_alias ={{.*}} alias36// CHECK: @__mod_joydev_ids_device_table ={{.*}} alias37 38// CHECK-LABEL: define internal void @asan.module_ctor39// 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 void42 43// CHECK-LABEL: define internal void @asan.module_dtor44// CHECK-NEXT: call void @__asan_unregister_globals45// CHECK-NEXT: ret void46