forked from OSchip/llvm-project
212 lines
8.3 KiB
C++
212 lines
8.3 KiB
C++
// Tests for the cfi-vcall feature:
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-trap=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CFI --check-prefix=ITANIUM --check-prefix=ITANIUM-NDIAG --check-prefix=NDIAG %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CFI --check-prefix=ITANIUM --check-prefix=ITANIUM-DIAG --check-prefix=DIAG --check-prefix=DIAG-ABORT %s
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fsanitize=cfi-vcall -fsanitize-recover=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CFI --check-prefix=ITANIUM --check-prefix=DIAG --check-prefix=DIAG-RECOVER %s
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// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fsanitize=cfi-vcall -fsanitize-trap=cfi-vcall -emit-llvm -o - %s | FileCheck --check-prefix=CFI --check-prefix=MS --check-prefix=NDIAG %s
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// Tests for the whole-program-vtables feature:
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// RUN: %clang_cc1 -triple x86_64-unknown-linux -fwhole-program-vtables -emit-llvm -o - %s | FileCheck --check-prefix=VTABLE-OPT --check-prefix=ITANIUM %s
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// RUN: %clang_cc1 -triple x86_64-pc-windows-msvc -fwhole-program-vtables -emit-llvm -o - %s | FileCheck --check-prefix=VTABLE-OPT --check-prefix=MS %s
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// MS: @[[VTA:[0-9]*]] {{.*}} comdat($"\01??_7A@@6B@")
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// MS: @[[VTB:[0-9]*]] {{.*}} comdat($"\01??_7B@@6B0@@")
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// MS: @[[VTAinB:[0-9]*]] {{.*}} comdat($"\01??_7B@@6BA@@@")
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// MS: @[[VTAinC:[0-9]*]] {{.*}} comdat($"\01??_7C@@6B@")
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// MS: @[[VTBinD:[0-9]*]] {{.*}} comdat($"\01??_7D@?A@@6BB@@@")
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// MS: @[[VTAinBinD:[0-9]*]] {{.*}} comdat($"\01??_7D@?A@@6BA@@@")
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// MS: @[[VTFA:[0-9]*]] {{.*}} comdat($"\01??_7FA@?1??foo@@YAXXZ@6B@")
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struct A {
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A();
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virtual void f();
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};
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struct B : virtual A {
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B();
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virtual void g();
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virtual void h();
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};
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struct C : virtual A {
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C();
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};
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namespace {
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struct D : B, C {
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D();
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virtual void f();
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virtual void h();
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};
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}
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A::A() {}
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B::B() {}
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C::C() {}
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D::D() {}
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void A::f() {
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}
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void B::g() {
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}
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void D::f() {
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}
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void D::h() {
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}
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// DIAG: @[[SRC:.*]] = private unnamed_addr constant [{{.*}} x i8] c"{{.*}}bitsets.cpp\00", align 1
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// DIAG: @[[TYPE:.*]] = private unnamed_addr constant { i16, i16, [4 x i8] } { i16 -1, i16 0, [4 x i8] c"'A'\00" }
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// DIAG: @[[BADTYPESTATIC:.*]] = private unnamed_addr global { i8, { [{{.*}} x i8]*, i32, i32 }, { i16, i16, [4 x i8] }* } { i8 0, { [{{.*}} x i8]*, i32, i32 } { [{{.*}} x i8]* @[[SRC]], i32 [[@LINE+24]], i32 3 }, { i16, i16, [4 x i8] }* @[[TYPE]] }
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// ITANIUM: define void @_Z2afP1A
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// MS: define void @"\01?af@@YAXPEAUA@@@Z"
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void af(A *a) {
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// ITANIUM: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* [[VT:%[^ ]*]], metadata !"_ZTS1A")
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// MS: [[P:%[^ ]*]] = call i1 @llvm.bitset.test(i8* [[VT:%[^ ]*]], metadata !"?AUA@@")
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// DIAG-NEXT: [[VTVALID0:%[^ ]*]] = call i1 @llvm.bitset.test(i8* [[VT]], metadata !"all-vtables")
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// VTABLE-OPT: call void @llvm.assume(i1 [[P]])
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// CFI-NEXT: br i1 [[P]], label %[[CONTBB:[^ ,]*]], label %[[TRAPBB:[^ ,]*]]
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// CFI-NEXT: {{^$}}
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// CFI: [[TRAPBB]]
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// NDIAG-NEXT: call void @llvm.trap()
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// NDIAG-NEXT: unreachable
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// DIAG-NEXT: [[VTINT:%[^ ]*]] = ptrtoint i8* [[VT]] to i64
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// DIAG-NEXT: [[VTVALID:%[^ ]*]] = zext i1 [[VTVALID0]] to i64
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// DIAG-ABORT-NEXT: call void @__ubsan_handle_cfi_check_fail_abort(i8* getelementptr inbounds ({{.*}} @[[BADTYPESTATIC]], i32 0, i32 0), i64 [[VTINT]], i64 [[VTVALID]])
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// DIAG-ABORT-NEXT: unreachable
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// DIAG-RECOVER-NEXT: call void @__ubsan_handle_cfi_check_fail(i8* getelementptr inbounds ({{.*}} @[[BADTYPESTATIC]], i32 0, i32 0), i64 [[VTINT]], i64 [[VTVALID]])
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// DIAG-RECOVER-NEXT: br label %[[CONTBB]]
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// CFI: [[CONTBB]]
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// CFI: call void %
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a->f();
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}
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// ITANIUM: define internal void @_Z3df1PN12_GLOBAL__N_11DE
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// MS: define internal void @"\01?df1@@YAXPEAUD@?A@@@Z"
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void df1(D *d) {
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// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE:[0-9]+]])
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// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUA@@")
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d->f();
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}
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// ITANIUM: define internal void @_Z3dg1PN12_GLOBAL__N_11DE
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// MS: define internal void @"\01?dg1@@YAXPEAUD@?A@@@Z"
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void dg1(D *d) {
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// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"_ZTS1B")
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// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUB@@")
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d->g();
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}
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// ITANIUM: define internal void @_Z3dh1PN12_GLOBAL__N_11DE
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// MS: define internal void @"\01?dh1@@YAXPEAUD@?A@@@Z"
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void dh1(D *d) {
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// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE]])
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// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata ![[DTYPE:[0-9]+]])
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d->h();
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}
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// ITANIUM: define internal void @_Z3df2PN12_GLOBAL__N_11DE
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// MS: define internal void @"\01?df2@@YAXPEAUD@?A@@@Z"
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__attribute__((no_sanitize("cfi")))
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void df2(D *d) {
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// CFI-NOT: call i1 @llvm.bitset.test
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d->f();
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}
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// ITANIUM: define internal void @_Z3df3PN12_GLOBAL__N_11DE
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// MS: define internal void @"\01?df3@@YAXPEAUD@?A@@@Z"
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__attribute__((no_sanitize("address"))) __attribute__((no_sanitize("cfi-vcall")))
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void df3(D *d) {
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// CFI-NOT: call i1 @llvm.bitset.test
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d->f();
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}
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D d;
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void foo() {
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df1(&d);
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dg1(&d);
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dh1(&d);
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df2(&d);
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df3(&d);
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struct FA : A {
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void f() {}
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} fa;
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af(&fa);
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}
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namespace test2 {
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struct A {
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virtual void m_fn1();
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};
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struct B {
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virtual void m_fn2();
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};
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struct C : B, A {};
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struct D : C {
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void m_fn1();
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};
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// ITANIUM: define void @_ZN5test21fEPNS_1DE
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// MS: define void @"\01?f@test2@@YAXPEAUD@1@@Z"
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void f(D *d) {
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// ITANIUM: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"_ZTSN5test21DE")
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// MS: {{%[^ ]*}} = call i1 @llvm.bitset.test(i8* {{%[^ ]*}}, metadata !"?AUA@test2@@")
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d->m_fn1();
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}
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}
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// Check for the expected number of elements (15 or 23 respectively).
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// MS-NDIAG: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){9}]]}
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// MS-DIAG: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){15}]]}
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// ITANIUM-NDIAG: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){14}]]}
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// ITANIUM-DIAG: !llvm.bitsets = !{[[X:[^,]*(,[^,]*){23}]]}
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// ITANIUM-DAG: !{!"_ZTS1A", [3 x i8*]* @_ZTV1A, i64 16}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [3 x i8*]* @_ZTV1A, i64 16}
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// ITANIUM-DAG: !{!"_ZTS1A", [7 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [7 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1B", [7 x i8*]* @_ZTCN12_GLOBAL__N_11DE0_1B, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1A", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 64}
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// ITANIUM-DAG: !{!"_ZTS1C", [9 x i8*]* @_ZTCN12_GLOBAL__N_11DE8_1C, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1A", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1B", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1C", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 88}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 88}
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// ITANIUM-DAG: !{![[DTYPE]], [12 x i8*]* @_ZTVN12_GLOBAL__N_11DE, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1A", [7 x i8*]* @_ZTV1B, i64 32}
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// ITANIUM-DIAG-DAG: !{!"all-vtables", [7 x i8*]* @_ZTV1B, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1B", [7 x i8*]* @_ZTV1B, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1A", [5 x i8*]* @_ZTV1C, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1C", [5 x i8*]* @_ZTV1C, i64 32}
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// ITANIUM-DAG: !{!"_ZTS1A", [3 x i8*]* @_ZTVZ3foovE2FA, i64 16}
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// ITANIUM-DAG: !{!{{[0-9]+}}, [3 x i8*]* @_ZTVZ3foovE2FA, i64 16}
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// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTA]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [2 x i8*]* @[[VTA]], i64 8}
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// MS-DAG: !{!"?AUB@@", [3 x i8*]* @[[VTB]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [3 x i8*]* @[[VTB]], i64 8}
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// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinB]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [2 x i8*]* @[[VTAinB]], i64 8}
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// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinC]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [2 x i8*]* @[[VTAinC]], i64 8}
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// MS-DAG: !{!"?AUB@@", [3 x i8*]* @[[VTBinD]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [3 x i8*]* @[[VTBinD]], i64 8}
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// MS-DAG: !{![[DTYPE]], [3 x i8*]* @[[VTBinD]], i64 8}
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// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTAinBinD]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [2 x i8*]* @[[VTAinBinD]], i64 8}
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// MS-DAG: !{!"?AUA@@", [2 x i8*]* @[[VTFA]], i64 8}
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// MS-DIAG-DAG: !{!"all-vtables", [2 x i8*]* @[[VTFA]], i64 8}
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// MS-DAG: !{!{{[0-9]+}}, [2 x i8*]* @[[VTFA]], i64 8}
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