llvm-project/clang/test/CodeGen/asan-globals-alias.cpp

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// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN
// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN
//
// Not all platforms support aliases - test for Linux only.
int global; // to generate ctor for at least 1 global
int aliased_global; // KASAN - ignore globals prefixed by aliases with __-prefix (below)
extern int __attribute__((alias("aliased_global"))) __global_alias; // KASAN - aliased_global ignored
// ASAN: @aliased_global{{.*}} global { i32, [60 x i8] }{{.*}}, align 32
// KASAN: @aliased_global{{.*}} global i32
// CHECK-LABEL: define internal void @asan.module_ctor
// ASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 2)
// KASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 1)
// CHECK-NEXT: ret void
// CHECK-LABEL: define internal void @asan.module_dtor
// CHECK-NEXT: call void @__asan_unregister_globals
// CHECK-NEXT: ret void