This revision was automatically updated to reflect the committed changes.
Closed by commit rL343537: [MinGW] Allow using ASan (authored by mstorsjo,
committed by ).
Herald added a subscriber: llvm-commits.
Changed prior to commit:
https://reviews.llvm.org/D52538?vs=167817&id=167823#toc
Repository:
rL LLVM
https://reviews.llvm.org/D52538
Files:
cfe/trunk/lib/Driver/ToolChain.cpp
cfe/trunk/lib/Driver/ToolChains/MinGW.cpp
cfe/trunk/lib/Driver/ToolChains/MinGW.h
cfe/trunk/test/Driver/mingw-sanitizers.c
Index: cfe/trunk/lib/Driver/ToolChains/MinGW.cpp
===================================================================
--- cfe/trunk/lib/Driver/ToolChains/MinGW.cpp
+++ cfe/trunk/lib/Driver/ToolChains/MinGW.cpp
@@ -14,6 +14,7 @@
#include "clang/Driver/Driver.h"
#include "clang/Driver/DriverDiagnostic.h"
#include "clang/Driver/Options.h"
+#include "clang/Driver/SanitizerArgs.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Path.h"
@@ -95,7 +96,7 @@
const char *LinkingOutput) const {
const ToolChain &TC = getToolChain();
const Driver &D = TC.getDriver();
- // const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
+ const SanitizerArgs &Sanitize = TC.getSanitizerArgs();
ArgStringList CmdArgs;
@@ -187,8 +188,6 @@
TC.AddFilePathLibArgs(Args, CmdArgs);
AddLinkerInputs(TC, Inputs, Args, CmdArgs, JA);
- // TODO: Add ASan stuff here
-
// TODO: Add profile stuff here
if (TC.ShouldLinkCXXStdlib(Args)) {
@@ -231,6 +230,24 @@
if (Args.hasArg(options::OPT_pthread))
CmdArgs.push_back("-lpthread");
+ if (Sanitize.needsAsanRt()) {
+ // MinGW always links against a shared MSVCRT.
+ CmdArgs.push_back(
+ TC.getCompilerRTArgString(Args, "asan_dynamic", true));
+ CmdArgs.push_back(
+ TC.getCompilerRTArgString(Args, "asan_dynamic_runtime_thunk"));
+ CmdArgs.push_back(Args.MakeArgString("--require-defined"));
+ CmdArgs.push_back(Args.MakeArgString(TC.getArch() == llvm::Triple::x86
+ ? "___asan_seh_interceptor"
+ : "__asan_seh_interceptor"));
+ // Make sure the linker consider all object files from the dynamic
+ // runtime thunk.
+ CmdArgs.push_back(Args.MakeArgString("--whole-archive"));
+ CmdArgs.push_back(Args.MakeArgString(
+ TC.getCompilerRT(Args, "asan_dynamic_runtime_thunk")));
+ CmdArgs.push_back(Args.MakeArgString("--no-whole-archive"));
+ }
+
if (!HasWindowsApp) {
// Add system libraries. If linking to libwindowsapp.a, that import
// library replaces all these and we shouldn't accidentally try to
@@ -407,6 +424,12 @@
return llvm::ExceptionHandling::DwarfCFI;
}
+SanitizerMask toolchains::MinGW::getSupportedSanitizers() const {
+ SanitizerMask Res = ToolChain::getSupportedSanitizers();
+ Res |= SanitizerKind::Address;
+ return Res;
+}
+
void toolchains::MinGW::AddCudaIncludeArgs(const ArgList &DriverArgs,
ArgStringList &CC1Args) const {
CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
Index: cfe/trunk/lib/Driver/ToolChains/MinGW.h
===================================================================
--- cfe/trunk/lib/Driver/ToolChains/MinGW.h
+++ cfe/trunk/lib/Driver/ToolChains/MinGW.h
@@ -65,6 +65,8 @@
bool isPIEDefault() const override;
bool isPICDefaultForced() const override;
+ SanitizerMask getSupportedSanitizers() const override;
+
llvm::ExceptionHandling GetExceptionModel(
const llvm::opt::ArgList &Args) const override;
Index: cfe/trunk/lib/Driver/ToolChain.cpp
===================================================================
--- cfe/trunk/lib/Driver/ToolChain.cpp
+++ cfe/trunk/lib/Driver/ToolChain.cpp
@@ -367,8 +367,10 @@
TT.isWindowsMSVCEnvironment() || TT.isWindowsItaniumEnvironment();
const char *Prefix = IsITANMSVCWindows ? "" : "lib";
- const char *Suffix = Shared ? (Triple.isOSWindows() ? ".dll" : ".so")
+ const char *Suffix = Shared ? (Triple.isOSWindows() ? ".lib" : ".so")
: (IsITANMSVCWindows ? ".lib" : ".a");
+ if (Shared && Triple.isWindowsGNUEnvironment())
+ Suffix = ".dll.a";
for (const auto &LibPath : getLibraryPaths()) {
SmallString<128> P(LibPath);
Index: cfe/trunk/test/Driver/mingw-sanitizers.c
===================================================================
--- cfe/trunk/test/Driver/mingw-sanitizers.c
+++ cfe/trunk/test/Driver/mingw-sanitizers.c
@@ -0,0 +1,11 @@
+// RUN: %clang -target i686-windows-gnu %s -### -fsanitize=address 2>&1 | FileCheck --check-prefix=ASAN-I686 %s
+// ASAN-I686: "{{.*}}libclang_rt.asan_dynamic-i386.dll.a"
+// ASAN-I686: "{{[^"]*}}libclang_rt.asan_dynamic_runtime_thunk-i386.a"
+// ASAN-I686: "--require-defined" "___asan_seh_interceptor"
+// ASAN-I686: "--whole-archive" "{{.*}}libclang_rt.asan_dynamic_runtime_thunk-i386.a" "--no-whole-archive"
+
+// RUN: %clang -target x86_64-windows-gnu %s -### -fsanitize=address 2>&1 | FileCheck --check-prefix=ASAN-X86_64 %s
+// ASAN-X86_64: "{{.*}}libclang_rt.asan_dynamic-x86_64.dll.a"
+// ASAN-X86_64: "{{[^"]*}}libclang_rt.asan_dynamic_runtime_thunk-x86_64.a"
+// ASAN-X86_64: "--require-defined" "__asan_seh_interceptor"
+// ASAN-X86_64: "--whole-archive" "{{.*}}libclang_rt.asan_dynamic_runtime_thunk-x86_64.a" "--no-whole-archive"
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