Files
RedBear-OS/local/recipes/dev/libclc/source/clang/test/CodeGen/sanitize-address-field-padding.cpp
T
vasilito cb424d7448 build: static patch-sanity linter (shift-left the malformed-patch class)
verify-patch-sanity.py validates every active recipe .patch has internally-
consistent hunk line counts — catching the 'malformed patch at line N' failure
at commit/CI/preflight time instead of hours into a cook. This cycle hit that
class three times (qtwaylandscanner, sddm, xwayland), each only discovered when
cookbook tried to apply the patch.

Running it across the repo found 29 latent malformed patches (validated against
GNU patch: e.g. relibc/P3-sysv-ipc reproduces 'malformed patch at line 22').
They were harmless only because they sit in vendored recipes (baked, not re-
applied) — but would fail on any version-bump re-derivation. --fix recounts the
hunk headers (body untouched) and repaired all 29.

Wired into build-preflight.sh (Phase 1.0D) and redbear-ci.yml, with a unit test
(test-patch-sanity.sh). Skips archived/legacy trees and unvalidatable formats
(empty placeholders, bare-@@ git hunks).
2026-08-01 05:13:02 +03:00

240 lines
7.3 KiB
C++

// Test -fsanitize-address-field-padding
// RUN: echo 'type:SomeNamespace::IgnorelistedByName=field-padding' > %t.type.ignorelist
// RUN: echo 'src:*sanitize-address-field-padding.cpp=field-padding' > %t.file.ignorelist
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsanitize=address -fsanitize-address-field-padding=1 -fsanitize-ignorelist=%t.type.ignorelist -Rsanitize-address -emit-llvm -o - %s 2>&1 | FileCheck %s
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsanitize=address -fsanitize-address-field-padding=1 -fsanitize-ignorelist=%t.type.ignorelist -Rsanitize-address -emit-llvm -o - %s -mconstructor-aliases 2>&1 | FileCheck %s --check-prefix=WITH_CTOR_ALIASES
// RUN: %clang_cc1 -triple x86_64-unknown-unknown -fsanitize=address -fsanitize-address-field-padding=1 -fsanitize-ignorelist=%t.file.ignorelist -Rsanitize-address -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=FILE_IGNORELIST
// RUN: %clang_cc1 -fsanitize=address -emit-llvm -o - %s 2>&1 | FileCheck %s --check-prefix=NO_PADDING
// Try to emulate -save-temps option and make sure -disable-llvm-passes will not run sanitize instrumentation.
// RUN: %clang_cc1 -fsanitize=address -emit-llvm -disable-llvm-passes -o - %s | %clang_cc1 -fsanitize=address -emit-llvm -o - -x ir | FileCheck %s --check-prefix=NO_PADDING
//
// The reasons to ignore a particular class are not set in stone and will change.
//
// CHECK: -fsanitize-address-field-padding applied to Positive1
// CHECK: -fsanitize-address-field-padding ignored for Negative1 because it is trivially copyable
// CHECK: -fsanitize-address-field-padding ignored for Negative2 because it is trivially copyable
// CHECK: -fsanitize-address-field-padding ignored for Negative3 because it is a union
// CHECK: -fsanitize-address-field-padding ignored for Negative4 because it is trivially copyable
// CHECK: -fsanitize-address-field-padding ignored for Negative5 because it is packed
// CHECK: -fsanitize-address-field-padding ignored for SomeNamespace::IgnorelistedByName because it is ignorelisted
// CHECK: -fsanitize-address-field-padding ignored for ExternCStruct because it is not C++
//
// FILE_IGNORELIST: -fsanitize-address-field-padding ignored for Positive1 because it is in a ignorelisted file
// FILE_IGNORELIST-NOT: __asan_poison_intra_object_redzone
// NO_PADDING-NOT: __asan_poison_intra_object_redzone
class Positive1 {
public:
Positive1() {}
~Positive1() {}
int make_it_non_standard_layout;
private:
char private1;
int private2;
short private_array[6];
long long private3;
};
Positive1 positive1;
// Positive1 with extra paddings
// CHECK: type { i32, [12 x i8], i8, [15 x i8], i32, [12 x i8], [6 x i16], [12 x i8], i64, [8 x i8] }
struct VirtualBase {
int foo;
};
class ClassWithVirtualBase : public virtual VirtualBase {
public:
ClassWithVirtualBase() {}
~ClassWithVirtualBase() {}
int make_it_non_standard_layout;
private:
char x[7];
char y[9];
};
ClassWithVirtualBase class_with_virtual_base;
class WithFlexibleArray1 {
public:
WithFlexibleArray1() {}
~WithFlexibleArray1() {}
int make_it_non_standard_layout;
private:
char private1[33];
int flexible[]; // Don't insert padding after this field.
};
WithFlexibleArray1 with_flexible_array1;
// CHECK: %class.WithFlexibleArray1 = type { i32, [12 x i8], [33 x i8], [15 x i8], [0 x i32] }
class WithFlexibleArray2 {
public:
char x[21];
WithFlexibleArray1 flex1; // Don't insert padding after this field.
};
WithFlexibleArray2 with_flexible_array2;
// CHECK: %class.WithFlexibleArray2 = type { [21 x i8], [11 x i8], %class.WithFlexibleArray1 }
class WithFlexibleArray3 {
public:
char x[13];
WithFlexibleArray2 flex2; // Don't insert padding after this field.
};
WithFlexibleArray3 with_flexible_array3;
class Negative1 {
public:
Negative1() {}
int public1, public2;
};
Negative1 negative1;
// CHECK: type { i32, i32 }
class Negative2 {
public:
Negative2() {}
private:
int private1, private2;
};
Negative2 negative2;
// CHECK: type { i32, i32 }
union Negative3 {
char m1[8];
long long m2;
};
Negative3 negative3;
// CHECK: type { i64 }
class Negative4 {
public:
Negative4() {}
// No DTOR
int make_it_non_standard_layout;
private:
char private1;
int private2;
};
Negative4 negative4;
// CHECK: type { i32, i8, i32 }
class __attribute__((packed)) Negative5 {
public:
Negative5() {}
~Negative5() {}
int make_it_non_standard_layout;
private:
char private1;
int private2;
};
Negative5 negative5;
// CHECK: type <{ i32, i8, i32 }>
namespace SomeNamespace {
class IgnorelistedByName {
public:
IgnorelistedByName() {}
~IgnorelistedByName() {}
int make_it_non_standard_layout;
private:
char private1;
int private2;
};
} // SomeNamespace
SomeNamespace::IgnorelistedByName ignorelisted_by_name;
extern "C" {
class ExternCStruct {
public:
ExternCStruct() {}
~ExternCStruct() {}
int make_it_non_standard_layout;
private:
char private1;
int private2;
};
} // extern "C"
ExternCStruct extern_C_struct;
// CTOR
// CHECK-LABEL: define {{.*}}Positive1C1Ev
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}}15)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}}8)
// CHECK-NOT: __asan_poison_intra_object_redzone
// CHECK: ret void
//
// DTOR
// CHECK: call void @__asan_unpoison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_unpoison_intra_object_redzone({{.*}}15)
// CHECK: call void @__asan_unpoison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_unpoison_intra_object_redzone({{.*}}12)
// CHECK: call void @__asan_unpoison_intra_object_redzone({{.*}}8)
// CHECK-NOT: __asan_unpoison_intra_object_redzone
// CHECK: ret void
//
//
// CHECK-LABEL: define linkonce_odr void @_ZN20ClassWithVirtualBaseC1Ev
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}} 12)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}} 9)
// CHECK: call void @__asan_poison_intra_object_redzone({{.*}} 15)
// CHECK-NOT: __asan_poison_intra_object_redzone
// CHECK: ret void
//
struct WithVirtualDtor {
virtual ~WithVirtualDtor();
int x, y;
};
struct InheritsFrom_WithVirtualDtor: WithVirtualDtor {
int a, b;
InheritsFrom_WithVirtualDtor() {}
~InheritsFrom_WithVirtualDtor() {}
};
void Create_InheritsFrom_WithVirtualDtor() {
InheritsFrom_WithVirtualDtor x;
}
// Make sure the dtor of InheritsFrom_WithVirtualDtor remains in the code,
// i.e. we ignore -mconstructor-aliases when field paddings are added
// because the paddings in InheritsFrom_WithVirtualDtor needs to be unpoisoned
// in the dtor.
// WITH_CTOR_ALIASES-LABEL: define{{.*}} void @_Z35Create_InheritsFrom_WithVirtualDtor
// WITH_CTOR_ALIASES-NOT: call void @_ZN15WithVirtualDtorD2Ev
// WITH_CTOR_ALIASES: call void @_ZN28InheritsFrom_WithVirtualDtorD2Ev
// WITH_CTOR_ALIASES: ret void
// Make sure we don't emit memcpy for operator= if paddings are inserted.
struct ClassWithTrivialCopy {
ClassWithTrivialCopy();
~ClassWithTrivialCopy();
void *a;
private:
void *c;
};
void MakeTrivialCopy(ClassWithTrivialCopy *s1, ClassWithTrivialCopy *s2) {
*s1 = *s2;
ClassWithTrivialCopy s3(*s2);
}
// CHECK-LABEL: define{{.*}} void @_Z15MakeTrivialCopyP20ClassWithTrivialCopyS0_
// CHECK-NOT: memcpy
// CHECK: ret void