f17120a85f
Add StackProtector to SafeStack. This adds limited protection against data corruption in the caller frame. Current implementation treats all stack protector levels as -fstack-protector-all. llvm-svn: 266004
20 lines
984 B
LLVM
20 lines
984 B
LLVM
; RUN: opt -safe-stack -S -mtriple=i686-pc-linux-gnu < %s -o - | FileCheck --check-prefix=TLS --check-prefix=TLS32 %s
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; RUN: opt -safe-stack -S -mtriple=x86_64-pc-linux-gnu < %s -o - | FileCheck --check-prefix=TLS --check-prefix=TLS64 %s
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; RUN: opt -safe-stack -S -mtriple=i686-linux-android < %s -o - | FileCheck --check-prefix=TLS --check-prefix=TLS32 %s
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; RUN: opt -safe-stack -S -mtriple=x86_64-linux-android < %s -o - | FileCheck --check-prefix=TLS --check-prefix=TLS64 %s
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define void @foo() safestack sspreq {
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entry:
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; TLS32: %[[StackGuard:.*]] = load i8*, i8* addrspace(256)* inttoptr (i32 20 to i8* addrspace(256)*)
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; TLS64: %[[StackGuard:.*]] = load i8*, i8* addrspace(257)* inttoptr (i32 40 to i8* addrspace(257)*)
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; TLS: store i8* %[[StackGuard]], i8** %[[StackGuardSlot:.*]]
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%a = alloca i8, align 1
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call void @Capture(i8* %a)
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; TLS: %[[A:.*]] = load i8*, i8** %[[StackGuardSlot]]
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; TLS: icmp ne i8* %[[StackGuard]], %[[A]]
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ret void
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}
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declare void @Capture(i8*)
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