451a9ce9ff
This PR introduces the use of pointer authentication to objective-c[++]. This includes: * __ptrauth qualifier support for ivars * protection of isa and super fields * protection of SEL typed ivars * protection of class_ro_t data * protection of methodlist pointers and content
91 lines
4.6 KiB
Plaintext
91 lines
4.6 KiB
Plaintext
// RUN: %clang_cc1 -O0 -Wobjc-root-class -fptrauth-intrinsics -fptrauth-calls -nostdsysteminc -triple arm64e-apple-ios -emit-llvm -fptrauth-objc-interface-sel -o - %s | FileCheck --check-prefix=CHECK-AUTHENTICATED-SEL %s
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// RUN: %clang_cc1 -O0 -Wobjc-root-class -fptrauth-intrinsics -fptrauth-calls -nostdsysteminc -triple arm64e-apple-ios -emit-llvm -o - %s | FileCheck --check-prefix=CHECK-UNAUTHENTICATED-SEL %s
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#include <ptrauth.h>
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#define __ptrauth_objc_sel_override \
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__ptrauth(ptrauth_key_objc_sel_pointer, 1, 22467)
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extern "C" {
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@interface Test {
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@public
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SEL auto_sel;
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@public
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const SEL const_auto_sel;
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@public
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volatile SEL volatile_auto_sel;
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@public
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SEL __ptrauth_objc_sel_override manual;
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@public
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const SEL __ptrauth_objc_sel_override const_manual;
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@public
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volatile SEL __ptrauth_objc_sel_override volatile_manual;
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}
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@end
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#if __has_feature(ptrauth_objc_interface_sel)
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typedef const SEL __ptrauth_objc_sel const_auto_sel_ptr_type;
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const_auto_sel_ptr_type *const_auto_sel_ptr_type_test;
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typedef volatile SEL __ptrauth_objc_sel volatile_auto_sel_ptr_type;
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volatile_auto_sel_ptr_type *volatile_auto_sel_ptr_type_test;
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#else
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typedef const SEL const_auto_sel_ptr_type;
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const_auto_sel_ptr_type *const_auto_sel_ptr_type_test;
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typedef volatile SEL volatile_auto_sel_ptr_type;
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volatile_auto_sel_ptr_type *volatile_auto_sel_ptr_type_test;
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#endif
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void auto_sel(Test *out, Test *in) {
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out->auto_sel = in->auto_sel;
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}
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// CHECK-AUTHENTICATED-SEL: define void @auto_sel
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// CHECK-AUTHENTICATED-SEL: [[DST_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_DST_ADDR:%.*]], i64 22466)
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// CHECK-AUTHENTICATED-SEL: [[CAST_SRC_ADDR:%.*]] = ptrtoint ptr [[SRC_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: [[SRC_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_SRC_ADDR]], i64 22466)
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// CHECK-AUTHENTICATED-SEL: [[SRC_SEL:%.*]] = ptrtoint ptr [[SRC_SEL_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: {{%.*}} = call i64 @llvm.ptrauth.resign(i64 [[SRC_SEL]], i32 3, i64 [[DST_DESCRIMINATOR]], i32 3, i64 [[SRC_DESCRIMINATOR]])
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// CHECK-UNAUTHENTICATED-SEL: define void @auto_sel
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SEL const_auto_sel(Test *in) {
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const_auto_sel_ptr_type_test = &in->const_auto_sel;
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return in->const_auto_sel;
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}
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// CHECK-AUTHENTICATED-SEL: define ptr @const_auto_sel
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// CHECK-AUTHENTICATED-SEL: {{%.*}} = call i64 @llvm.ptrauth.blend(i64 {{%.*}}, i64 22466)
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// CHECK-AUTHENTICATED-SEL: {{%.*}} = ptrtoint ptr {{%.*}} to i64
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// CHECK-AUTHENTICATED-SEL: [[AUTHENTICATED:%.*]] = call i64 @llvm.ptrauth.auth(i64 {{%.*}}, i32 3, i64 {{%.*}})
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// CHECK-AUTHENTICATED-SEL: [[RESULT:%.*]] = inttoptr i64 [[AUTHENTICATED]] to ptr
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void volatile_auto_sel(Test *out, Test *in) {
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volatile_auto_sel_ptr_type_test = &in->volatile_auto_sel;
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out->volatile_auto_sel = in->volatile_auto_sel;
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}
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// CHECK-AUTHENTICATED-SEL: define void @volatile_auto_sel
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// CHECK-AUTHENTICATED-SEL: [[DST_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_DST_ADDR:%.*]], i64 22466)
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// CHECK-AUTHENTICATED-SEL: [[CAST_SRC_ADDR:%.*]] = ptrtoint ptr [[SRC_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: [[SRC_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_SRC_ADDR]], i64 22466)
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// CHECK-AUTHENTICATED-SEL: [[SRC_SEL:%.*]] = ptrtoint ptr [[SRC_SEL_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: {{%.*}} = call i64 @llvm.ptrauth.resign(i64 [[SRC_SEL]], i32 3, i64 [[DST_DESCRIMINATOR]], i32 3, i64 [[SRC_DESCRIMINATOR]])
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void manual(Test *out, Test *in) {
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out->manual = in->manual;
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}
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// CHECK-AUTHENTICATED-SEL: define void @manual
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// CHECK-AUTHENTICATED-SEL: [[DST_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_DST_ADDR:%.*]], i64 22467)
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// CHECK-AUTHENTICATED-SEL: [[CAST_SRC_ADDR:%.*]] = ptrtoint ptr [[SRC_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: [[SRC_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_SRC_ADDR]], i64 22467)
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// CHECK-AUTHENTICATED-SEL: [[SRC_SEL:%.*]] = ptrtoint ptr [[SRC_SEL_ADDR:%.*]] to i64
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// CHECK-AUTHENTICATED-SEL: {{%.*}} = call i64 @llvm.ptrauth.resign(i64 [[SRC_SEL]], i32 3, i64 [[DST_DESCRIMINATOR]], i32 3, i64 [[SRC_DESCRIMINATOR]])
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// CHECK-UNAUTHENTICATED-SEL: define void @manual
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// CHECK-UNAUTHENTICATED-SEL: [[DST_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_DST_ADDR:%.*]], i64 22467)
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// CHECK-UNAUTHENTICATED-SEL: [[CAST_SRC_ADDR:%.*]] = ptrtoint ptr [[SRC_ADDR:%.*]] to i64
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// CHECK-UNAUTHENTICATED-SEL: [[SRC_DESCRIMINATOR:%.*]] = call i64 @llvm.ptrauth.blend(i64 [[CAST_SRC_ADDR]], i64 22467)
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// CHECK-UNAUTHENTICATED-SEL: [[SRC_SEL:%.*]] = ptrtoint ptr [[SRC_SEL_ADDR:%.*]] to i64
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// CHECK-UNAUTHENTICATED-SEL: {{%.*}} = call i64 @llvm.ptrauth.resign(i64 [[SRC_SEL]], i32 3, i64 [[DST_DESCRIMINATOR]], i32 3, i64 [[SRC_DESCRIMINATOR]])
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}
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