hctim updated this revision to Diff 413625.
hctim marked an inline comment as done.
hctim added a comment.
Herald added a project: All.
Rebase onto D119384 <https://reviews.llvm.org/D119384>, removing all the llvm
and lld-specific parts. This patch now only contains the clang-specific bits.
Repository:
rG LLVM Github Monorepo
CHANGES SINCE LAST ACTION
https://reviews.llvm.org/D118948/new/
https://reviews.llvm.org/D118948
Files:
clang/include/clang/Basic/DiagnosticDriverKinds.td
clang/include/clang/Basic/Features.def
clang/include/clang/Basic/Sanitizers.def
clang/include/clang/Driver/Options.td
clang/include/clang/Driver/SanitizerArgs.h
clang/lib/CodeGen/CGDeclCXX.cpp
clang/lib/CodeGen/CodeGenFunction.cpp
clang/lib/CodeGen/CodeGenModule.cpp
clang/lib/Driver/SanitizerArgs.cpp
clang/lib/Driver/ToolChains/CommonArgs.cpp
clang/test/CodeGen/memtag-attr.cpp
clang/test/Driver/fsanitize.c
clang/test/Driver/memtag-ld.c
clang/test/Driver/memtag-stack.c
clang/test/Driver/memtag.c
clang/test/Lexer/has_feature_memtag_heap.cpp
clang/test/Lexer/has_feature_memtag_sanitizer.cpp
clang/test/Lexer/has_feature_memtag_stack.cpp
Index: clang/test/Lexer/has_feature_memtag_stack.cpp
===================================================================
--- /dev/null
+++ clang/test/Lexer/has_feature_memtag_stack.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -E -fsanitize=memtag-stack %s -o - | FileCheck --check-prefix=CHECK-MEMTAG %s
+// RUN: %clang -E -fsanitize=memtag --target=aarch64-unknown-linux -march=armv8a+memtag %s -o - \
+// RUN: | FileCheck --check-prefix=CHECK-MEMTAG %s
+// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-MEMTAG %s
+
+#if __has_feature(memtag_stack)
+int MemTagSanitizerEnabled();
+#else
+int MemTagSanitizerDisabled();
+#endif
+
+// CHECK-MEMTAG: MemTagSanitizerEnabled
+// CHECK-NO-MEMTAG: MemTagSanitizerDisabled
Index: clang/test/Lexer/has_feature_memtag_sanitizer.cpp
===================================================================
--- clang/test/Lexer/has_feature_memtag_sanitizer.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-// RUN: %clang_cc1 -E -fsanitize=memtag %s -o - | FileCheck --check-prefix=CHECK-MEMTAG %s
-// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-MEMTAG %s
-
-#if __has_feature(memtag_sanitizer)
-int MemTagSanitizerEnabled();
-#else
-int MemTagSanitizerDisabled();
-#endif
-
-// CHECK-MEMTAG: MemTagSanitizerEnabled
-// CHECK-NO-MEMTAG: MemTagSanitizerDisabled
Index: clang/test/Lexer/has_feature_memtag_heap.cpp
===================================================================
--- /dev/null
+++ clang/test/Lexer/has_feature_memtag_heap.cpp
@@ -0,0 +1,13 @@
+// RUN: %clang_cc1 -E -fsanitize=memtag-heap %s -o - | FileCheck --check-prefix=CHECK-MEMTAG %s
+// RUN: %clang -E -fsanitize=memtag --target=aarch64-unknown-linux -march=armv8a+memtag %s -o - \
+// RUN: | FileCheck --check-prefix=CHECK-MEMTAG %s
+// RUN: %clang_cc1 -E %s -o - | FileCheck --check-prefix=CHECK-NO-MEMTAG %s
+
+#if __has_feature(memtag_heap)
+int MemTagSanitizerEnabled();
+#else
+int MemTagSanitizerDisabled();
+#endif
+
+// CHECK-MEMTAG: MemTagSanitizerEnabled
+// CHECK-NO-MEMTAG: MemTagSanitizerDisabled
Index: clang/test/Driver/memtag.c
===================================================================
--- /dev/null
+++ clang/test/Driver/memtag.c
@@ -1,20 +0,0 @@
-// RUN: %clang -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print=1 %s -S -o - 2>&1 | FileCheck %s --check-prefix=CHECK-NO-SAFETY
-// RUN: %clang -O1 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print=1 %s -S -o - 2>&1 | FileCheck %s --check-prefix=CHECK-SAFETY
-// RUN: %clang -O2 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print=1 %s -S -o - 2>&1 | FileCheck %s --check-prefix=CHECK-SAFETY
-// RUN: %clang -O3 -target aarch64-unknown-linux -march=armv8+memtag -fsanitize=memtag -mllvm -stack-safety-print=1 %s -S -o - 2>&1 | FileCheck %s --check-prefix=CHECK-SAFETY
-
-// REQUIRES: aarch64-registered-target
-
-int z;
-__attribute__((noinline)) void use(int *p) { *p = z; }
-int foo() {
- int x;
- use(&x);
- return x;
-}
-
-// CHECK-NO-SAFETY-NOT: allocas uses
-
-// CHECK-SAFETY-LABEL: @foo
-// CHECK-SAFETY-LABEL: allocas uses:
-// CHECK-SAFETY-NEXT: [4]: [0,4)
Index: clang/test/Driver/memtag-ld.c
===================================================================
--- /dev/null
+++ clang/test/Driver/memtag-ld.c
@@ -0,0 +1,48 @@
+// REQUIRES: aarch64-registered-target
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag %s 2>&1 | FileCheck %s \
+// RUN: --check-prefixes=CHECK-HEAP,CHECK-STACK,CHECK-DEFAULT-MODE
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-stack %s 2>&1 | FileCheck %s \
+// RUN: --check-prefixes=CHECK-NO-HEAP,CHECK-STACK,CHECK-DEFAULT-MODE
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-heap %s 2>&1 | FileCheck %s \
+// RUN: --check-prefixes=CHECK-HEAP,CHECK-NO-STACK,CHECK-DEFAULT-MODE
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag -fsanitize-memtag-mode=sync %s 2>&1 | FileCheck %s \
+// RUN: --check-prefixes=CHECK-DEFAULT-MODE,CHECK-HEAP,CHECK-STACK
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-stack -fsanitize-memtag-mode=sync %s 2>&1 \
+// RUN: | FileCheck %s \
+// RUN: --check-prefixes=CHECK-DEFAULT-MODE,CHECK-NO-HEAP,CHECK-STACK
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-heap -fsanitize-memtag-mode=sync %s 2>&1 \
+// RUN: | FileCheck %s \
+// RUN: --check-prefixes=CHECK-DEFAULT-MODE,CHECK-HEAP,CHECK-NO-STACK
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-heap -fsanitize-memtag-mode=asymm %s 2>&1 \
+// RUN: | FileCheck %s --check-prefixes=CHECK-INVALID-MODE
+
+// RUN: %clang -### --target=aarch64-linux-android -march=armv8+memtag \
+// RUN: -fsanitize=memtag-stack -fsanitize=memtag-heap \
+// RUN: -fsanitize-memtag-mode=asymm -fno-sanitize=memtag %s 2>&1 \
+// RUN: | FileCheck %s --check-prefixes=CHECK-NONE
+
+// CHECK-ASYNC: ld{{.*}} "-memtag-mode=async"
+// CHECK-DEFAULT-MODE-NOT: ld{{.*}} "-memtag-mode=
+// CHECK-HEAP: "-memtag-heap"
+// CHECK-NO-HEAP-NOT: "-memtag-heap"
+// CHECK-STACK: "-memtag-stack"
+// CHECK-NO-STACK-NOT: "-memtag-stack"
+// CHECK-INVALID-MODE: memtag-mode
+// CHECK-INVALID-MODE-SAME: expected one of: {async, sync}
+// CHECK-NONE-NOT: ld{{.*}} "-memtag
+
+void f() {}
Index: clang/test/Driver/fsanitize.c
===================================================================
--- clang/test/Driver/fsanitize.c
+++ clang/test/Driver/fsanitize.c
@@ -195,13 +195,13 @@
// RUN: %clang -target aarch64-linux -fsanitize=memtag -march=armv8-a+memtag %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANMT-MT
// CHECK-SANMT-MT: "-target-feature" "+mte"
-// CHECK-SANMT-MT-SAME: "-fsanitize=memtag"
+// CHECK-SANMT-MT-SAME: "-fsanitize=memtag-stack,memtag-heap"
// RUN: %clang -target aarch64-linux -fsanitize=memtag %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANMT-NOMT-0
-// CHECK-SANMT-NOMT-0: '-fsanitize=memtag' requires hardware support (+memtag)
+// CHECK-SANMT-NOMT-0: '-fsanitize=memtag-stack' requires hardware support (+memtag)
// RUN: %clang -target aarch64-linux -fsanitize=memtag -I +mte %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-SANMT-NOMT-1
-// CHECK-SANMT-NOMT-1: '-fsanitize=memtag' requires hardware support (+memtag)
+// CHECK-SANMT-NOMT-1: '-fsanitize=memtag-stack' requires hardware support (+memtag)
// RUN: %clang -target x86_64-linux-gnu -fsanitize=address -fsanitize-address-use-after-scope %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE
// RUN: %clang_cl --target=x86_64-windows -fsanitize=address -fsanitize-address-use-after-scope -### -- %s 2>&1 | FileCheck %s --check-prefix=CHECK-USE-AFTER-SCOPE
@@ -801,7 +801,7 @@
// CHECK-INTSAN-MINIMAL: "-fsanitize-minimal-runtime"
// RUN: %clang -target aarch64-linux-android -march=armv8-a+memtag -fsanitize=memtag -fsanitize-minimal-runtime %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-MEMTAG-MINIMAL
-// CHECK-MEMTAG-MINIMAL: "-fsanitize=memtag"
+// CHECK-MEMTAG-MINIMAL: "-fsanitize=memtag-stack,memtag-heap"
// CHECK-MEMTAG-MINIMAL: "-fsanitize-minimal-runtime"
// RUN: %clang -target x86_64-linux-gnu -fsanitize=undefined -fsanitize=function -fsanitize-minimal-runtime %s -### 2>&1 | FileCheck %s --check-prefix=CHECK-UBSAN-FUNCTION-MINIMAL
Index: clang/test/CodeGen/memtag-attr.cpp
===================================================================
--- clang/test/CodeGen/memtag-attr.cpp
+++ clang/test/CodeGen/memtag-attr.cpp
@@ -4,16 +4,27 @@
// RUN: %clang_cc1 -triple aarch64-unknown-linux -disable-O0-optnone \
// RUN: -emit-llvm -o - %s | FileCheck -check-prefix=CHECK-NO %s
-// RUN: %clang_cc1 -triple aarch64-unknown-linux -fsanitize=memtag \
+// RUN: %clang_cc1 -triple aarch64-unknown-linux -fsanitize=memtag-stack \
// RUN: -disable-O0-optnone -emit-llvm -o - %s | \
// RUN: FileCheck -check-prefix=CHECK-MEMTAG %s
+// RUN: %clang --target=aarch64-unknown-linux -march=armv8a+memtag \
+// RUN: -fsanitize=memtag -disable-O0-optnone -S -emit-llvm -o - %s | \
+// RUN: FileCheck -check-prefix=CHECK-MEMTAG %s
+
int HasSanitizeMemTag() { return 1; }
-// CHECK-NO: {{Function Attrs: mustprogress noinline nounwind$}}
-// CHECK-MEMTAG: Function Attrs: mustprogress noinline nounwind sanitize_memtag
+// CHECK-NO: Function Attrs
+// CHECK-NO-NOT: sanitize_memtag
+// CHECK-NO-NEXT: define {{.*}}HasSanitizeMemTag
+// CHECK-MEMTAG: Function Attrs: {{.*}} sanitize_memtag
+// CHECK-MEMTAG-NEXT: define {{.*}}HasSanitizeMemTag
__attribute__((no_sanitize("memtag"))) int NoSanitizeQuoteAddress() {
return 0;
}
-// CHECK-NO: {{Function Attrs: mustprogress noinline nounwind$}}
-// CHECK-MEMTAG: {{Function Attrs: mustprogress noinline nounwind$}}
+// CHECK-NO: Function Attrs
+// CHECK-NO-NOT: sanitize_memtag
+// CHECK-NO-NEXT: define {{.*}}NoSanitizeQuoteAddress
+// CHECK-MEMTAG: Function Attrs
+// CHECK-MEMTAG-NOT: sanitize_memtag
+// CHECK-MEMTAG-NEXT: define {{.*}}NoSanitizeQuoteAddress
Index: clang/lib/Driver/ToolChains/CommonArgs.cpp
===================================================================
--- clang/lib/Driver/ToolChains/CommonArgs.cpp
+++ clang/lib/Driver/ToolChains/CommonArgs.cpp
@@ -988,6 +988,16 @@
if (SanArgs.hasCrossDsoCfi() && !AddExportDynamic)
CmdArgs.push_back("--export-dynamic-symbol=__cfi_check");
+ if (SanArgs.hasMemTag() && TC.getTriple().isAndroid()) {
+ if (SanArgs.getMemtagMode() != "sync")
+ CmdArgs.push_back(
+ Args.MakeArgString("-memtag-mode=" + SanArgs.getMemtagMode()));
+ if (SanArgs.hasMemtagHeap())
+ CmdArgs.push_back("-memtag-heap");
+ if (SanArgs.hasMemtagStack())
+ CmdArgs.push_back("-memtag-stack");
+ }
+
return !StaticRuntimes.empty() || !NonWholeStaticRuntimes.empty();
}
Index: clang/lib/Driver/SanitizerArgs.cpp
===================================================================
--- clang/lib/Driver/SanitizerArgs.cpp
+++ clang/lib/Driver/SanitizerArgs.cpp
@@ -44,8 +44,8 @@
static const SanitizerMask SupportsCoverage =
SanitizerKind::Address | SanitizerKind::HWAddress |
SanitizerKind::KernelAddress | SanitizerKind::KernelHWAddress |
- SanitizerKind::MemTag | SanitizerKind::Memory |
- SanitizerKind::KernelMemory | SanitizerKind::Leak |
+ SanitizerKind::MemtagStack | SanitizerKind::MemtagHeap |
+ SanitizerKind::Memory | SanitizerKind::KernelMemory | SanitizerKind::Leak |
SanitizerKind::Undefined | SanitizerKind::Integer | SanitizerKind::Bounds |
SanitizerKind::ImplicitConversion | SanitizerKind::Nullability |
SanitizerKind::DataFlow | SanitizerKind::Fuzzer |
@@ -73,7 +73,7 @@
SanitizerKind::CFIUnrelatedCast;
static const SanitizerMask CompatibleWithMinimalRuntime =
TrappingSupported | SanitizerKind::Scudo | SanitizerKind::ShadowCallStack |
- SanitizerKind::MemTag;
+ SanitizerKind::MemtagStack | SanitizerKind::MemtagHeap;
enum CoverageFeature {
CoverageFunc = 1 << 0,
@@ -652,6 +652,17 @@
MsanParamRetval = false;
}
+ if (AllAddedKinds & SanitizerKind::MemTag) {
+ StringRef S =
+ Args.getLastArgValue(options::OPT_fsanitize_memtag_mode_EQ, "sync");
+ if (S.equals("async") || S.equals("sync")) {
+ MemtagMode = S.str();
+ } else {
+ D.Diag(clang::diag::err_drv_invalid_value_with_suggestion)
+ << "-fsanitize-memtag-mode=" << S << "{async, sync}";
+ }
+ }
+
if (AllAddedKinds & SanitizerKind::Thread) {
TsanMemoryAccess = Args.hasFlag(
options::OPT_fsanitize_thread_memory_access,
@@ -1231,7 +1242,8 @@
<< "-fvisibility=";
}
- if (Sanitizers.has(SanitizerKind::MemTag) && !hasTargetFeatureMTE(CmdArgs))
+ if (Sanitizers.has(SanitizerKind::MemtagStack) &&
+ !hasTargetFeatureMTE(CmdArgs))
TC.getDriver().Diag(diag::err_stack_tagging_requires_hardware_feature);
}
Index: clang/lib/CodeGen/CodeGenModule.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenModule.cpp
+++ clang/lib/CodeGen/CodeGenModule.cpp
@@ -734,7 +734,7 @@
LangOptions::SignReturnAddressScopeKind::None)
getModule().addModuleFlag(llvm::Module::Override,
"sign-return-address-buildattr", 1);
- if (LangOpts.Sanitize.has(SanitizerKind::MemTag))
+ if (LangOpts.Sanitize.has(SanitizerKind::MemtagStack))
getModule().addModuleFlag(llvm::Module::Override,
"tag-stack-memory-buildattr", 1);
Index: clang/lib/CodeGen/CodeGenFunction.cpp
===================================================================
--- clang/lib/CodeGen/CodeGenFunction.cpp
+++ clang/lib/CodeGen/CodeGenFunction.cpp
@@ -777,7 +777,7 @@
if (SanOpts.hasOneOf(SanitizerKind::HWAddress |
SanitizerKind::KernelHWAddress))
Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
- if (SanOpts.has(SanitizerKind::MemTag))
+ if (SanOpts.has(SanitizerKind::MemtagStack))
Fn->addFnAttr(llvm::Attribute::SanitizeMemTag);
if (SanOpts.has(SanitizerKind::Thread))
Fn->addFnAttr(llvm::Attribute::SanitizeThread);
Index: clang/lib/CodeGen/CGDeclCXX.cpp
===================================================================
--- clang/lib/CodeGen/CGDeclCXX.cpp
+++ clang/lib/CodeGen/CGDeclCXX.cpp
@@ -458,8 +458,8 @@
!isInNoSanitizeList(SanitizerKind::KernelHWAddress, Fn, Loc))
Fn->addFnAttr(llvm::Attribute::SanitizeHWAddress);
- if (getLangOpts().Sanitize.has(SanitizerKind::MemTag) &&
- !isInNoSanitizeList(SanitizerKind::MemTag, Fn, Loc))
+ if (getLangOpts().Sanitize.has(SanitizerKind::MemtagStack) &&
+ !isInNoSanitizeList(SanitizerKind::MemtagStack, Fn, Loc))
Fn->addFnAttr(llvm::Attribute::SanitizeMemTag);
if (getLangOpts().Sanitize.has(SanitizerKind::Thread) &&
Index: clang/include/clang/Driver/SanitizerArgs.h
===================================================================
--- clang/include/clang/Driver/SanitizerArgs.h
+++ clang/include/clang/Driver/SanitizerArgs.h
@@ -64,6 +64,8 @@
llvm::AsanDetectStackUseAfterReturnMode AsanUseAfterReturn =
llvm::AsanDetectStackUseAfterReturnMode::Invalid;
+ std::string MemtagMode = "";
+
public:
/// Parses the sanitizer arguments from an argument list.
SanitizerArgs(const ToolChain &TC, const llvm::opt::ArgList &Args,
@@ -97,6 +99,15 @@
bool needsStatsRt() const { return Stats; }
bool needsScudoRt() const { return Sanitizers.has(SanitizerKind::Scudo); }
+ bool hasMemTag() const { return hasMemtagHeap() || hasMemtagStack(); }
+ bool hasMemtagHeap() const {
+ return Sanitizers.has(SanitizerKind::MemtagHeap);
+ }
+ bool hasMemtagStack() const {
+ return Sanitizers.has(SanitizerKind::MemtagStack);
+ }
+ const std::string &getMemtagMode() const { return MemtagMode; }
+
bool requiresPIE() const;
bool needsUnwindTables() const;
bool needsLTO() const;
Index: clang/include/clang/Driver/Options.td
===================================================================
--- clang/include/clang/Driver/Options.td
+++ clang/include/clang/Driver/Options.td
@@ -1643,6 +1643,9 @@
def fno_sanitize_address_outline_instrumentation : Flag<["-"], "fno-sanitize-address-outline-instrumentation">,
Group<f_clang_Group>,
HelpText<"Use default code inlining logic for the address sanitizer">;
+def fsanitize_memtag_mode_EQ : Joined<["-"], "fsanitize-memtag-mode=">,
+ Group<f_clang_Group>,
+ HelpText<"Set default MTE mode to 'sync' (default) or 'async'.">;
def fsanitize_hwaddress_experimental_aliasing
: Flag<["-"], "fsanitize-hwaddress-experimental-aliasing">,
Group<f_clang_Group>,
Index: clang/include/clang/Basic/Sanitizers.def
===================================================================
--- clang/include/clang/Basic/Sanitizers.def
+++ clang/include/clang/Basic/Sanitizers.def
@@ -56,7 +56,9 @@
SANITIZER("kernel-hwaddress", KernelHWAddress)
// A variant of AddressSanitizer using AArch64 MTE extension.
-SANITIZER("memtag", MemTag)
+SANITIZER("memtag-stack", MemtagStack)
+SANITIZER("memtag-heap", MemtagHeap)
+SANITIZER_GROUP("memtag", MemTag, MemtagStack | MemtagHeap)
// MemorySanitizer
SANITIZER("memory", Memory)
Index: clang/include/clang/Basic/Features.def
===================================================================
--- clang/include/clang/Basic/Features.def
+++ clang/include/clang/Basic/Features.def
@@ -45,7 +45,10 @@
FEATURE(hwaddress_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::HWAddress |
SanitizerKind::KernelHWAddress))
-FEATURE(memtag_sanitizer, LangOpts.Sanitize.has(SanitizerKind::MemTag))
+FEATURE(memtag_stack,
+ LangOpts.Sanitize.has(SanitizerKind::MemtagStack))
+FEATURE(memtag_heap,
+ LangOpts.Sanitize.has(SanitizerKind::MemtagHeap))
FEATURE(xray_instrument, LangOpts.XRayInstrument)
FEATURE(undefined_behavior_sanitizer,
LangOpts.Sanitize.hasOneOf(SanitizerKind::Undefined))
Index: clang/include/clang/Basic/DiagnosticDriverKinds.td
===================================================================
--- clang/include/clang/Basic/DiagnosticDriverKinds.td
+++ clang/include/clang/Basic/DiagnosticDriverKinds.td
@@ -472,7 +472,8 @@
"ROPI is not compatible with c++">;
def err_stack_tagging_requires_hardware_feature : Error<
- "'-fsanitize=memtag' requires hardware support (+memtag)">;
+ "'-fsanitize=memtag-stack' requires hardware support (+memtag). For Armv8, "
+ "try compiling with -march=armv8a+memtag.">;
def err_cmse_pi_are_incompatible : Error<
"cmse is not compatible with %select{RWPI|ROPI}0">;
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