diff options
| author | Vitaly Buka <vitalybuka@google.com> | 2018-12-13 09:47:39 +0000 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2018-12-13 09:47:39 +0000 |
| commit | a257639a6935a2c63377784c5c9c3b73864a2582 (patch) | |
| tree | fb08dfa65a4ad2e8bb9720ef15b0d172e892fe18 /clang/test | |
| parent | 577b9fc54370b51262b11f5fee7474e9c71f4507 (diff) | |
| download | bcm5719-llvm-a257639a6935a2c63377784c5c9c3b73864a2582.tar.gz bcm5719-llvm-a257639a6935a2c63377784c5c9c3b73864a2582.zip | |
[asan] Don't check ODR violations for particular types of globals
Summary:
private and internal: should not trigger ODR at all.
unnamed_addr: current ODR checking approach fail and rereport false violation if
a linker merges such globals
linkonce_odr, weak_odr: could cause similar problems and they are already not
instrumented for ELF.
Reviewers: eugenis, kcc
Subscribers: kubamracek, hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D55621
llvm-svn: 349015
Diffstat (limited to 'clang/test')
| -rw-r--r-- | clang/test/CodeGen/asan-static-odr.cpp | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/clang/test/CodeGen/asan-static-odr.cpp b/clang/test/CodeGen/asan-static-odr.cpp new file mode 100644 index 00000000000..6b23b62e16f --- /dev/null +++ b/clang/test/CodeGen/asan-static-odr.cpp @@ -0,0 +1,17 @@ +// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,ALIAS1 + +// No alias on Windows but indicators should work. +// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefixes=CHECK,ALIAS0 + +static int global; + +int main() { + return global; +} + +// CHECK-NOT: __odr_asan_gen +// CHECK-NOT: private alias +// CHECK: [[VAR:@.*global.*]] ={{.*}} global { i32, [60 x i8] } zeroinitializer, align 32 +// CHECK: @0 = internal global {{.*}} [[VAR]] to i64), {{.*}}, i64 -1 }] +// CHECK: call void @__asan_register_globals(i64 ptrtoint ([1 x { i64, i64, i64, i64, i64, i64, i64, i64 }]* @0 to i64), i64 1) +// CHECK: call void @__asan_unregister_globals(i64 ptrtoint ([1 x { i64, i64, i64, i64, i64, i64, i64, i64 }]* @0 to i64), i64 1) |
