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| author | Vitaly Buka <vitalybuka@google.com> | 2018-12-05 01:44:31 +0000 |
|---|---|---|
| committer | Vitaly Buka <vitalybuka@google.com> | 2018-12-05 01:44:31 +0000 |
| commit | 8076c57fd2f9ec89f2f64bc22abae96dec7c2e99 (patch) | |
| tree | 8f14c83543f6e67c5b45d9122f7dddb56fe4c590 /clang/test/CodeGen | |
| parent | bd199f8d4142eceaab1b045dafa44eefebc46a85 (diff) | |
| download | bcm5719-llvm-8076c57fd2f9ec89f2f64bc22abae96dec7c2e99.tar.gz bcm5719-llvm-8076c57fd2f9ec89f2f64bc22abae96dec7c2e99.zip | |
[asan] Add clang flag -fsanitize-address-use-odr-indicator
Reviewers: eugenis, m.ostapenko, ygribov
Subscribers: hiraditya, llvm-commits
Differential Revision: https://reviews.llvm.org/D55157
llvm-svn: 348327
Diffstat (limited to 'clang/test/CodeGen')
| -rw-r--r-- | clang/test/CodeGen/asan-globals-odr.cpp | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/clang/test/CodeGen/asan-globals-odr.cpp b/clang/test/CodeGen/asan-globals-odr.cpp new file mode 100644 index 00000000000..4a148c3ce32 --- /dev/null +++ b/clang/test/CodeGen/asan-globals-odr.cpp @@ -0,0 +1,30 @@ +// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,INDICATOR0,GLOB_VAR,ALIAS0 +// RUN: %clang_cc1 -fsanitize=address -fsanitize-address-use-odr-indicator -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,INDICATOR1,GLOB_ALIAS_INDICATOR,ALIAS1 +// RUN: %clang_cc1 -fsanitize=address -fno-sanitize-address-use-odr-indicator -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,INDICATOR0,GLOB_VAR,ALIAS0 +// RUN: %clang_cc1 -fsanitize=address -fno-sanitize-address-use-odr-indicator -fsanitize-address-use-odr-indicator -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,INDICATOR1,GLOB_ALIAS_INDICATOR,ALIAS1 +// RUN: %clang_cc1 -fsanitize=address -fsanitize-address-use-odr-indicator -fno-sanitize-address-use-odr-indicator -emit-llvm -o - -triple x86_64-linux %s | FileCheck %s --check-prefixes=CHECK,INDICATOR0,GLOB_VAR,ALIAS0 + +// 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,GLOB_VAR,ALIAS0 +// RUN: %clang_cc1 -fsanitize=address -fsanitize-address-use-odr-indicator -emit-llvm -o - -triple x86_64-windows-msvc %s | FileCheck %s --check-prefixes=CHECK,INDICATOR1,GLOB_VAR_INDICATOR,ALIAS0 + +int global; + +int main() { + return global; +} + +// CHECK: [[VAR:@.*global.*]] ={{.*}} global { i32, [60 x i8] } zeroinitializer, align 32 + +// INDICATOR0-NOT: __odr_asan_gen +// INDICATOR1: [[ODR:@.*__odr_asan_gen_.*global.*]] = global i8 0, align 1 + +// GLOB_VAR: @0 = internal global {{.*}} [[VAR]] to i64), {{.*}}, i64 0 }] +// GLOB_VAR_INDICATOR: @0 = internal global {{.*}} [[VAR]] to i64), {{.*}}, i64 ptrtoint (i8* [[ODR]] to i64) }] +// GLOB_ALIAS_INDICATOR: @0 = internal global {{.*}} @1 to i64), {{.*}}, i64 ptrtoint (i8* [[ODR]] to i64) }] + +// ALIAS0-NOT: private alias +// ALIAS1: @1 = private alias {{.*}} [[VAR]] + +// 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) |
