Author: quantum Date: Wed Jun 26 13:16:14 2019 New Revision: 364468 URL: http://llvm.org/viewvc/llvm-project?rev=364468&view=rev Log: [WebAssembly] Implement Address Sanitizer for Emscripten
Summary: This diff enables address sanitizer on Emscripten. On Emscripten, real memory starts at the value passed to --global-base. All memory before this is used as shadow memory, and thus the shadow mapping function is simply dividing by 8. Reviewers: tlively, aheejin, sbc100 Reviewed By: sbc100 Subscribers: dschuff, sbc100, jgravelle-google, hiraditya, sunfish, cfe-commits, llvm-commits Tags: #clang, #llvm Differential Revision: https://reviews.llvm.org/D63742 Modified: cfe/trunk/lib/Driver/ToolChains/WebAssembly.cpp cfe/trunk/test/Driver/wasm-toolchain.c Modified: cfe/trunk/lib/Driver/ToolChains/WebAssembly.cpp URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/lib/Driver/ToolChains/WebAssembly.cpp?rev=364468&r1=364467&r2=364468&view=diff ============================================================================== --- cfe/trunk/lib/Driver/ToolChains/WebAssembly.cpp (original) +++ cfe/trunk/lib/Driver/ToolChains/WebAssembly.cpp Wed Jun 26 13:16:14 2019 @@ -238,7 +238,7 @@ void WebAssembly::AddCXXStdlibLibArgs(co SanitizerMask WebAssembly::getSupportedSanitizers() const { SanitizerMask Res = ToolChain::getSupportedSanitizers(); if (getTriple().isOSEmscripten()) { - Res |= SanitizerKind::Vptr | SanitizerKind::Leak; + Res |= SanitizerKind::Vptr | SanitizerKind::Leak | SanitizerKind::Address; } return Res; } Modified: cfe/trunk/test/Driver/wasm-toolchain.c URL: http://llvm.org/viewvc/llvm-project/cfe/trunk/test/Driver/wasm-toolchain.c?rev=364468&r1=364467&r2=364468&view=diff ============================================================================== --- cfe/trunk/test/Driver/wasm-toolchain.c (original) +++ cfe/trunk/test/Driver/wasm-toolchain.c Wed Jun 26 13:16:14 2019 @@ -60,3 +60,7 @@ // RUN: --sysroot=/foo %s -pthread -mno-atomics 2>&1 \ // RUN: | FileCheck -check-prefix=PTHREAD_NO_ATOMICS %s // PTHREAD_NO_ATOMICS: invalid argument '-pthread' not allowed with '-mno-atomics' + +// RUN: %clang %s -### -fsanitize=address -target wasm32-unknown-emscripten 2>&1 | FileCheck -check-prefix=CHECK-ASAN-EMSCRIPTEN %s +// CHECK-ASAN-EMSCRIPTEN: "-fsanitize=address" +// CHECK-ASAN-EMSCRIPTEN: "-fsanitize-address-globals-dead-stripping" _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
