46 lines
2.1 KiB
C++
46 lines
2.1 KiB
C++
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// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN
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// RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,ASAN
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// RUN: %clang_cc1 -triple x86_64-linux -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN
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// RUN: %clang_cc1 -triple x86_64-linux -O2 -fsanitize=kernel-address -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,KASAN
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//
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// Not all platforms support aliases - test for Linux only.
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int global; // generate ctor for at least 1 global
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int aliased_global; // KASAN ignored
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extern int __attribute__((alias("aliased_global"))) __global_alias;
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// Recursive alias:
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int aliased_global_2; // KASAN ignored
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extern int __attribute__((alias("aliased_global_2"))) global_alias_2;
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extern int __attribute__((alias("global_alias_2"))) __global_alias_2_alias;
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// Potential indirect alias:
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struct input_device_id {
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unsigned long keybit[24];
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unsigned long driver_info;
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};
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struct input_device_id joydev_ids[] = { { {1}, 1234 } }; // KASAN ignored
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extern struct input_device_id __attribute__((alias("joydev_ids"))) __mod_joydev_ids_device_table;
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// ASAN: @aliased_global{{.*}} global { i32, [60 x i8] }{{.*}}, align 32
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// ASAN: @aliased_global_2{{.*}} global { i32, [60 x i8] }{{.*}}, align 32
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// ASAN: @joydev_ids{{.*}} global { {{.*}}[56 x i8] zeroinitializer }, align 32
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// KASAN: @aliased_global{{.*}} global i32
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// KASAN: @aliased_global_2{{.*}} global i32
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// KASAN: @joydev_ids{{.*}} global [1 x {{.*}}i64 1234 }], align 16
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// Check the aliases exist:
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// CHECK: @__global_alias ={{.*}} alias
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// CHECK: @global_alias_2 ={{.*}} alias
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// CHECK: @__global_alias_2_alias ={{.*}} alias
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// CHECK: @__mod_joydev_ids_device_table ={{.*}} alias
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// CHECK-LABEL: define internal void @asan.module_ctor
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// ASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 4)
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// KASAN: call void @__asan_register_globals({{.*}}, i{{32|64}} 1)
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// CHECK-NEXT: ret void
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// CHECK-LABEL: define internal void @asan.module_dtor
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// CHECK-NEXT: call void @__asan_unregister_globals
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// CHECK-NEXT: ret void
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