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llvm-project/clang/test/CodeGen/ubsan-function.cpp

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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 llvm-svn: 366186
2019-07-16 14:23:27 +08:00
// RUN: %clang_cc1 -triple x86_64-linux-gnu -emit-llvm -o - %s -fsanitize=function -fno-sanitize-recover=all | FileCheck %s
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// 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) }> {
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 llvm-svn: 366186
2019-07-16 14:23:27 +08:00
void fun() {}
Revert "[CodeGenModule] Assume dso_local for -fpic -fno-semantic-interposition" This reverts commit 789a46f2d742e11edaade28cb59a0f4d2a1d770e. Accidentally committed.
2020-02-04 02:09:39 +08:00
// CHECK-LABEL: define void @_Z6callerPFvvE(void ()* %f)
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 llvm-svn: 366186
2019-07-16 14:23:27 +08:00
// 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(); }