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| author | Stephan Bergmann <sbergman@redhat.com> | 2019-07-16 06:23:27 +0000 |
|---|---|---|
| committer | Stephan Bergmann <sbergman@redhat.com> | 2019-07-16 06:23:27 +0000 |
| commit | 90eb9824a592140f0d1ac70d0c5cf4377710ac76 (patch) | |
| tree | bdb48896f26a3110ab1614c3601de56e2eba9f1c /test/CodeGen | |
| parent | ce7674d7be842d4863b410ce1dfd89416256e9c1 (diff) | |
| download | clang-90eb9824a592140f0d1ac70d0c5cf4377710ac76.tar.gz | |
Finish "Adapt -fsanitize=function to SANITIZER_NON_UNIQUE_TYPEINFO"
i.e., recent 5745eccef54ddd3caca278d1d292a88b2281528b:
* Bump the function_type_mismatch handler version, as its signature has changed.
* The function_type_mismatch handler can return successfully now, so
SanitizerKind::Function must be AlwaysRecoverable (like for
SanitizerKind::Vptr).
* But the minimal runtime would still unconditionally treat a call to the
function_type_mismatch handler as failure, so disallow -fsanitize=function in
combination with -fsanitize-minimal-runtime (like it was already done for
-fsanitize=vptr).
* Add tests.
Differential Revision: https://reviews.llvm.org/D61479
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@366186 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'test/CodeGen')
| -rw-r--r-- | test/CodeGen/ubsan-function.cpp | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/test/CodeGen/ubsan-function.cpp b/test/CodeGen/ubsan-function.cpp new file mode 100644 index 0000000000..749e621424 --- /dev/null +++ b/test/CodeGen/ubsan-function.cpp @@ -0,0 +1,22 @@ +// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s + +// CHECK-LABEL: define void @_Z3funv() #0 prologue <{ i32, i32 }> <{ i32 846595819, i32 trunc (i64 sub (i64 ptrtoint (i8** @0 to i64), i64 ptrtoint (void ()* @_Z3funv to i64)) to i32) }> { +void fun() {} + +// CHECK-LABEL: define void @_Z6callerPFvvE(void ()* %f) +// CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 0, !nosanitize +// CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize +// CHECK: icmp eq i32 {{.*}}, 846595819, !nosanitize +// CHECK: br i1 {{.*}}, label %[[LABEL1:.*]], label %[[LABEL4:.*]], !nosanitize +// CHECK: [[LABEL1]]: +// CHECK: getelementptr <{ i32, i32 }>, <{ i32, i32 }>* {{.*}}, i32 0, i32 1, !nosanitize +// CHECK: load i32, i32* {{.*}}, align {{.*}}, !nosanitize +// CHECK: icmp eq i8* {{.*}}, bitcast ({ i8*, i8* }* @_ZTIFvvE to i8*), !nosanitize +// CHECK: br i1 {{.*}}, label %[[LABEL3:.*]], label %[[LABEL2:[^,]*]], {{.*}}!nosanitize +// CHECK: [[LABEL2]]: +// CHECK: call void @__ubsan_handle_function_type_mismatch_v1_abort(i8* {{.*}}, i64 {{.*}}, i64 {{.*}}, i64 {{.*}}) #{{.*}}, !nosanitize +// CHECK-NOT: unreachable +// CHECK: br label %[[LABEL3]], !nosanitize +// CHECK: [[LABEL3]]: +// CHECK: br label %[[LABEL4]], !nosanitize +void caller(void (*f)()) { f(); } |