derek.holloway
7502bf64a4
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91 lines
4.9 KiB
C++
91 lines
4.9 KiB
C++
// RUN: echo "int extra_global;" > %t.extra-source.cpp
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// RUN: echo "global:*ignorelisted_global*" > %t.ignorelist
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// RUN: %clang_cc1 -include %t.extra-source.cpp -fsanitize=address -fsanitize-ignorelist=%t.ignorelist -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,GLOBS,ASAN
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// RUN: %clang_cc1 -include %t.extra-source.cpp -fsanitize=kernel-address -fsanitize-ignorelist=%t.ignorelist -emit-llvm -o - %s | FileCheck %s --check-prefixes=CHECK,GLOBS,KASAN
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// The ignorelist file uses regexps, so Windows path backslashes.
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// RUN: echo "src:%s" | sed -e 's/\\/\\\\/g' > %t.ignorelist-src
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// RUN: %clang_cc1 -include %t.extra-source.cpp -fsanitize=address -fsanitize-ignorelist=%t.ignorelist-src -emit-llvm -o - %s | FileCheck %s --check-prefix=IGNORELIST-SRC
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// RUN: %clang_cc1 -include %t.extra-source.cpp -fsanitize=kernel-address -fsanitize-ignorelist=%t.ignorelist-src -emit-llvm -o - %s | FileCheck %s --check-prefix=IGNORELIST-SRC
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int global;
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int dyn_init_global = global;
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int __attribute__((no_sanitize("address"))) attributed_global;
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int __attribute__((disable_sanitizer_instrumentation)) disable_instrumentation_global;
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int ignorelisted_global;
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extern int __attribute__((no_sanitize("address"))) external_global;
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int __attribute__((section("__DATA, __common"))) sectioned_global; // KASAN - ignore globals in a section
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extern "C" {
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int __special_global; // KASAN - ignore globals with __-prefix
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}
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void func() {
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static int static_var = 0;
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const char *literal = "Hello, world!";
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external_global = 1;
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}
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// GLOBS: @{{.*}}extra_global{{.*}} ={{.*}} global
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// GLOBS-NOT: no_sanitize_address
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// GLOBS: @{{.*}}global{{.*}} ={{.*}} global
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// GLOBS-NOT: no_sanitize_address
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// GLOBS: @{{.*}}dyn_init_global{{.*}} ={{.*}} global {{.*}}, sanitize_address_dyninit
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// GLOBS-NOT: no_sanitize_address
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// GLOBS: @{{.*}}attributed_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// GLOBS: @{{.*}}disable_instrumentation_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// GLOBS: @{{.*}}ignorelisted_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// ASAN: @{{.*}}sectioned_global{{.*}} ={{.*}} global { i32, [28 x i8] }{{.*}}, align 32
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// ASAN-NOT: no_sanitize_address
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// ASAN: @{{.*}}__special_global{{.*}} ={{.*}} global { i32, [28 x i8] }{{.*}}, align 32
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// ASAN-NOT: no_sanitize_address
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/// Note: No attribute is added by the IR pass, but the type didn't change, so
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/// that checks our assertions that the globals didn't get instrumented.
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// KASAN: @{{.*}}sectioned_global{{.*}} ={{.*}} global i32 {{.*}}
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// KASAN: @{{.*}}__special_global{{.*}} ={{.*}} global i32 {{.*}}
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// GLOBS: @{{[^ ]*}}static_var{{[^ ]*}} ={{.*}} global {{.*}}
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// GLOBS-NOT: no_sanitize_address
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// GLOBS: @{{.*}} = {{.*}}c"Hello, world!\00"
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// GLOBS-NOT: no_sanitize_address
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// GLOBS: @{{.*}}external_global{{.*}} ={{.*}} no_sanitize_address
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/// Without -fasynchronous-unwind-tables, ctor and dtor get the uwtable attribute.
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// CHECK-LABEL: define internal void @asan.module_ctor() #[[#ATTR:]] {
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// ASAN-NEXT: call void @__asan_init
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// ASAN-NEXT: call void @__asan_version_mismatch_check
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// KASAN-NOT: call void @__asan_init
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// KASAN-NOT: call void @__asan_version_mismatch_check
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// ASAN-NEXT: call void @__asan_register_globals({{.*}}, i{{32|64}} 7)
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// KASAN-NEXT: call void @__asan_register_globals({{.*}}, i{{32|64}} 5)
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// CHECK-NEXT: ret void
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// CHECK: define internal void @asan.module_dtor() #[[#ATTR]] {
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// CHECK-NEXT: call void @__asan_unregister_globals
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// CHECK-NEXT: ret void
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// CHECK: attributes #[[#ATTR]] = { nounwind
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/// If -fasynchronous-unwind-tables, set the module flag "uwtable". ctor/dtor
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/// will thus get the uwtable attribute.
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// RUN: %clang_cc1 -emit-llvm -fsanitize=address -funwind-tables=2 -o - %s | FileCheck %s --check-prefixes=UWTABLE
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// UWTABLE: define internal void @asan.module_dtor() #[[#ATTR:]] {
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// UWTABLE: attributes #[[#ATTR]] = { nounwind uwtable
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// UWTABLE: ![[#]] = !{i32 7, !"uwtable", i32 2}
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// IGNORELIST-SRC: @{{.*}}extra_global{{.*}} ={{.*}} global
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// IGNORELIST-SRC-NOT: no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}dyn_init_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}attributed_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}disable_instrumentation_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}ignorelisted_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}sectioned_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}__special_global{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}static_var{{.*}} ={{.*}} global {{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}} ={{.*}} c"Hello, world!\00"{{.*}} no_sanitize_address
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// IGNORELIST-SRC: @{{.*}}external_global{{.*}} ={{.*}} no_sanitize_address
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