https://github.com/qinkunbao updated
https://github.com/llvm/llvm-project/pull/142006
>From c19361a169b18fada7702579cdadde99e4962e83 Mon Sep 17 00:00:00 2001
From: Qinkun Bao <qin...@google.com>
Date: Thu, 29 May 2025 18:19:07 +0000
Subject: [PATCH 1/3] =?UTF-8?q?[=F0=9D=98=80=F0=9D=97=BD=F0=9D=97=BF]=20in?=
=?UTF-8?q?itial=20version?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
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Created using spr 1.3.6
---
clang/lib/AST/ASTContext.cpp | 3 +--
clang/lib/Basic/NoSanitizeList.cpp | 6 +++++-
2 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/clang/lib/AST/ASTContext.cpp b/clang/lib/AST/ASTContext.cpp
index e71928ec0dc1c..5044d7c33ec3c 100644
--- a/clang/lib/AST/ASTContext.cpp
+++ b/clang/lib/AST/ASTContext.cpp
@@ -875,8 +875,7 @@ ASTContext::insertCanonicalTemplateTemplateParmDeclInternal(
bool ASTContext::isTypeIgnoredBySanitizer(const SanitizerMask &Mask,
const QualType &Ty) const {
std::string TyName =
Ty.getUnqualifiedType().getAsString(getPrintingPolicy());
- return NoSanitizeL->containsType(Mask, TyName) &&
- !NoSanitizeL->containsType(Mask, TyName, "sanitize");
+ return NoSanitizeL->containsType(Mask, TyName);
}
TargetCXXABI::Kind ASTContext::getCXXABIKind() const {
diff --git a/clang/lib/Basic/NoSanitizeList.cpp
b/clang/lib/Basic/NoSanitizeList.cpp
index a3ca463fc8efb..61ee19555c0ca 100644
--- a/clang/lib/Basic/NoSanitizeList.cpp
+++ b/clang/lib/Basic/NoSanitizeList.cpp
@@ -34,7 +34,11 @@ bool NoSanitizeList::containsGlobal(SanitizerMask Mask,
StringRef GlobalName,
bool NoSanitizeList::containsType(SanitizerMask Mask, StringRef
MangledTypeName,
StringRef Category) const {
- return SSCL->inSection(Mask, "type", MangledTypeName, Category);
+ auto NoSan = SSCL->inSectionBlame(Mask, "type", FileName, Category);
+ if (NoSan == llvm::SpecialCaseList::NotFound)
+ return false;
+ auto San = SSCL->inSectionBlame(Mask, "type", FileName, "sanitize");
+ return San == llvm::SpecialCaseList::NotFound || NoSan > San;
}
bool NoSanitizeList::containsFunction(SanitizerMask Mask,
>From 19ad9c8b7986cd9e818ac94a87ccacd77fd49a3f Mon Sep 17 00:00:00 2001
From: Qinkun Bao <qin...@google.com>
Date: Thu, 29 May 2025 18:26:56 +0000
Subject: [PATCH 2/3] Fix argument.
Created using spr 1.3.6
---
clang/lib/Basic/NoSanitizeList.cpp | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/clang/lib/Basic/NoSanitizeList.cpp
b/clang/lib/Basic/NoSanitizeList.cpp
index 61ee19555c0ca..9f0f1c64995cb 100644
--- a/clang/lib/Basic/NoSanitizeList.cpp
+++ b/clang/lib/Basic/NoSanitizeList.cpp
@@ -34,10 +34,10 @@ bool NoSanitizeList::containsGlobal(SanitizerMask Mask,
StringRef GlobalName,
bool NoSanitizeList::containsType(SanitizerMask Mask, StringRef
MangledTypeName,
StringRef Category) const {
- auto NoSan = SSCL->inSectionBlame(Mask, "type", FileName, Category);
+ auto NoSan = SSCL->inSectionBlame(Mask, "type", MangledTypeName, Category);
if (NoSan == llvm::SpecialCaseList::NotFound)
return false;
- auto San = SSCL->inSectionBlame(Mask, "type", FileName, "sanitize");
+ auto San = SSCL->inSectionBlame(Mask, "type", MangledTypeName, "sanitize");
return San == llvm::SpecialCaseList::NotFound || NoSan > San;
}
>From d501e343c16df6432650c856b1cdf9130e024a15 Mon Sep 17 00:00:00 2001
From: Qinkun Bao <qin...@google.com>
Date: Thu, 29 May 2025 19:23:53 +0000
Subject: [PATCH 3/3] Modify the tests.
Created using spr 1.3.6
---
.../ubsan-type-ignorelist-category-2.test | 59 +++++++++++++------
1 file changed, 41 insertions(+), 18 deletions(-)
diff --git a/clang/test/CodeGen/ubsan-type-ignorelist-category-2.test
b/clang/test/CodeGen/ubsan-type-ignorelist-category-2.test
index 4b4f87326dbe5..006c8ec10eb6a 100644
--- a/clang/test/CodeGen/ubsan-type-ignorelist-category-2.test
+++ b/clang/test/CodeGen/ubsan-type-ignorelist-category-2.test
@@ -1,19 +1,22 @@
// RUN: rm -rf %t
// RUN: split-file %s %t
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-0.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-1.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-2.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-3.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-4.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-5.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-6.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-7.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s
-
-// The same type can appear multiple times within an ignorelist. This is a test
-// to make sure "=sanitize" has priority regardless of the order in which
-// duplicate type entries appear. This is a precautionary measure; we would
-// much rather eagerly sanitize than silently forgo sanitization.
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-0.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,SANITIZE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-1.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-2.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,SANITIZE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-3.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-4.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,SANITIZE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-5.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-6.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,SANITIZE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-7.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,IGNORE
+// RUN: %clang_cc1 -triple x86_64-linux-gnu
-fsanitize=signed-integer-overflow,unsigned-integer-overflow
-fsanitize-ignorelist=%t/order-8.ignorelist -emit-llvm %t/test.c -o - |
FileCheck %s --check-prefixes=CHECK,SANITIZE
+
+
+// The same type can appear multiple times within an ignorelist. Any
``=sanitize`` type
+// entries enable sanitizer instrumentation, even if it was ignored by entries
before.
+// If multiple entries match the source, than the latest entry takes the
+// precedence.
+
//--- order-0.ignorelist
type:int
@@ -40,19 +43,39 @@ type:int=sanitize
type:in*
//--- order-6.ignorelist
+type:int
type:int=sanitize
-type:in*
//--- order-7.ignorelist
-type:int
+[{unsigned-integer-overflow,signed-integer-overflow}]
+type:*
type:int=sanitize
+type:i*t
+type:*nt=sanitize
+[{unsigned-integer-overflow,signed-integer-overflow}]
+type:*
+type:int
+type:i*t=sanitize
+type:*nt
-
+//--- order-8.ignorelist
+[{unsigned-integer-overflow,signed-integer-overflow}]
+type:*
+type:int
+type:i*t=sanitize
+type:*nt
+[{unsigned-integer-overflow,signed-integer-overflow}]
+type:*
+type:int=sanitize
+type:i*t
+type:*nt=sanitize
//--- test.c
-// CHECK-LABEL: @test
+// CHECK-LABEL: define dso_local void @test
void test(int A) {
-// CHECK: @llvm.sadd.with.overflow.i32
+// IGNORE: %inc = add nsw
+// SANITIZE: @llvm.sadd.with.overflow.i32
++A;
}
+
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