derek.holloway
7502bf64a4
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36 lines
2.0 KiB
C
36 lines
2.0 KiB
C
// REQUIRES: aarch64-registered-target
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// RUN: %clang -target aarch64-linux-pauthtest %s -S -emit-llvm -o - 2>&1 | FileCheck --implicit-check-not=warning: %s
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// RUN: not %clang -target aarch64 -fptrauth-returns %s -S -emit-llvm -o - 2>&1 | FileCheck --implicit-check-not=warning: --check-prefix=PTRAUTH-RETURNS %s
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// Clang fails early, no LLVM IR output produced.
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// PTRAUTH-RETURNS: clang: error: unsupported option '-fptrauth-returns' for target 'aarch64'
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// PTRAUTH-RETURNS-NOT: attributes
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/// Unsupported with pauthtest, warning emitted
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__attribute__((target("branch-protection=pac-ret"))) void f1() {}
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// CHECK: warning: unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored [-Wignored-attributes]
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// CHECK-NEXT: __attribute__((target("branch-protection=pac-ret"))) void f1() {}
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__attribute__((target("branch-protection=gcs"))) void f2() {}
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// CHECK: warning: unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored [-Wignored-attributes]
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// CHECK-NEXT: __attribute__((target("branch-protection=gcs"))) void f2() {}
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__attribute__((target("branch-protection=standard"))) void f3() {}
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// CHECK: warning: unsupported 'branch-protection' in the 'target' attribute string; 'target' attribute ignored [-Wignored-attributes]
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// CHECK-NEXT: __attribute__((target("branch-protection=standard"))) void f3() {}
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/// Supported with pauthtest, no warning emitted
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__attribute__((target("branch-protection=bti"))) void f4() {}
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/// Supported with pauthtest, no warning emitted
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__attribute__((target("branch-protection=none"))) void f5() {}
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/// Check there are no branch protection function attributes which are unsupported with pauthtest
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// CHECK-NOT: attributes {{.*}} "sign-return-address"
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// CHECK-NOT: attributes {{.*}} "sign-return-address-key"
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// CHECK-NOT: attributes {{.*}} "branch-protection-pauth-lr"
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// CHECK-NOT: attributes {{.*}} "guarded-control-stack"
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/// Check function attributes which are supported with pauthtest
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// CHECK: attributes {{.*}} "branch-target-enforcement"
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