Author: vitalybuka Date: Thu Dec 13 01:47:39 2018 New Revision: 349015 URL: http://llvm.org/viewvc/llvm-project?rev=349015&view=rev Log: [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 Added: cfe/trunk/test/CodeGen/asan-static-odr.cpp Added: cfe/trunk/test/CodeGen/asan-static-odr.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/CodeGen/asan-static-odr.cpp?rev=349015&view=auto ============================================================================== --- cfe/trunk/test/CodeGen/asan-static-odr.cpp (added) +++ cfe/trunk/test/CodeGen/asan-static-odr.cpp Thu Dec 13 01:47:39 2018 @@ -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) _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits