d179acd048
This provides -fptrauth-auth-traps, which at the frontend level only controls the addition of the "ptrauth-auth-traps" function attribute. The attribute in turn controls various aspects of backend codegen, by providing the guarantee that every "auth" operation generated will trap on failure. This can either be delegated to the hardware (if AArch64 FPAC is known to be available), in which case this attribute doesn't change codegen. Otherwise, if FPAC isn't available, this asks the backend to emit additional instructions to check and trap on auth failure.
30 lines
1.7 KiB
C
30 lines
1.7 KiB
C
// RUN: %clang_cc1 -triple arm64-apple-ios -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,OFF
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// RUN: %clang_cc1 -triple arm64e-apple-ios -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,OFF
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,OFF
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// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-calls -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,CALLS
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -fptrauth-calls -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,CALLS
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// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-returns -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,RETS
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -fptrauth-returns -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,RETS
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// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-auth-traps -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,TRAPS
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -fptrauth-auth-traps -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,TRAPS
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// RUN: %clang_cc1 -triple arm64-apple-ios -fptrauth-indirect-gotos -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,GOTOS
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// RUN: %clang_cc1 -triple aarch64-linux-gnu -fptrauth-indirect-gotos -emit-llvm %s -o - | FileCheck %s --check-prefixes=ALL,GOTOS
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// ALL: define {{(dso_local )?}}void @test() #0
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void test() {
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}
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// CALLS: attributes #0 = {{{.*}} "ptrauth-calls" {{.*}}}
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// RETS: attributes #0 = {{{.*}} "ptrauth-returns" {{.*}}}
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// TRAPS: attributes #0 = {{{.*}} "ptrauth-auth-traps" {{.*}}}
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// GOTOS: attributes #0 = {{{.*}} "ptrauth-indirect-gotos" {{.*}}}
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// OFF-NOT: attributes {{.*}} "ptrauth-
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