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https://github.com/c64scene-ar/llvm-6502.git
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114baee1fa
SSPStrong applies a heuristic to insert stack protectors in these situations: * A Protector is required for functions which contain an array, regardless of type or length. * A Protector is required for functions which contain a structure/union which contains an array, regardless of type or length. Note, there is no limit to the depth of nesting. * A protector is required when the address of a local variable (i.e., stack based variable) is exposed. (E.g., such as through a local whose address is taken as part of the RHS of an assignment or a local whose address is taken as part of a function argument.) This patch implements the SSPString attribute to be equivalent to SSPRequired. This will change in a subsequent patch. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@173230 91177308-0d34-0410-b5e6-96231b3b80d8
156 lines
4.0 KiB
LLVM
156 lines
4.0 KiB
LLVM
; RUN: opt -inline %s -S | FileCheck %s
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; Ensure SSP attributes are propagated correctly when inlining.
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@.str = private unnamed_addr constant [11 x i8] c"fun_nossp\0A\00", align 1
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@.str1 = private unnamed_addr constant [9 x i8] c"fun_ssp\0A\00", align 1
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@.str2 = private unnamed_addr constant [15 x i8] c"fun_sspstrong\0A\00", align 1
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@.str3 = private unnamed_addr constant [12 x i8] c"fun_sspreq\0A\00", align 1
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; These first four functions (@fun_sspreq, @fun_sspstrong, @fun_ssp, @fun_nossp)
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; are used by the remaining functions to ensure that the SSP attributes are
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; propagated correctly. The caller should have its SSP attribute set as:
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; strictest(caller-ssp-attr, callee-ssp-attr), where strictness is ordered as:
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; sspreq > sspstrong > ssp > [no ssp]
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define internal void @fun_sspreq() nounwind uwtable sspreq {
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entry:
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([12 x i8]* @.str3, i32 0, i32 0))
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ret void
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}
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define internal void @fun_sspstrong() nounwind uwtable sspstrong {
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entry:
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([15 x i8]* @.str2, i32 0, i32 0))
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ret void
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}
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define internal void @fun_ssp() nounwind uwtable ssp {
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entry:
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([9 x i8]* @.str1, i32 0, i32 0))
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ret void
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}
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define internal void @fun_nossp() nounwind uwtable {
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entry:
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%call = call i32 (i8*, ...)* @printf(i8* getelementptr inbounds ([11 x i8]* @.str, i32 0, i32 0))
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ret void
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}
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; Tests start below
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define void @inline_req_req() nounwind uwtable sspreq {
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entry:
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; CHECK: @inline_req_req() nounwind uwtable sspreq
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call void @fun_sspreq()
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ret void
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}
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define void @inline_req_strong() nounwind uwtable sspstrong {
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entry:
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; CHECK: @inline_req_strong() nounwind uwtable sspreq
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call void @fun_sspreq()
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ret void
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}
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define void @inline_req_ssp() nounwind uwtable ssp {
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entry:
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; CHECK: @inline_req_ssp() nounwind uwtable sspreq
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call void @fun_sspreq()
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ret void
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}
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define void @inline_req_nossp() nounwind uwtable {
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entry:
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; CHECK: @inline_req_nossp() nounwind uwtable sspreq
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call void @fun_sspreq()
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ret void
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}
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define void @inline_strong_req() nounwind uwtable sspreq {
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entry:
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; CHECK: @inline_strong_req() nounwind uwtable sspreq
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call void @fun_sspstrong()
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ret void
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}
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define void @inline_strong_strong() nounwind uwtable sspstrong {
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entry:
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; CHECK: @inline_strong_strong() nounwind uwtable sspstrong
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call void @fun_sspstrong()
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ret void
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}
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define void @inline_strong_ssp() nounwind uwtable ssp {
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entry:
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; CHECK: @inline_strong_ssp() nounwind uwtable sspstrong
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call void @fun_sspstrong()
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ret void
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}
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define void @inline_strong_nossp() nounwind uwtable {
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entry:
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; CHECK: @inline_strong_nossp() nounwind uwtable sspstrong
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call void @fun_sspstrong()
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ret void
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}
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define void @inline_ssp_req() nounwind uwtable sspreq {
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entry:
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; CHECK: @inline_ssp_req() nounwind uwtable sspreq
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call void @fun_ssp()
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ret void
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}
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define void @inline_ssp_strong() nounwind uwtable sspstrong {
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entry:
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; CHECK: @inline_ssp_strong() nounwind uwtable sspstrong
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call void @fun_ssp()
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ret void
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}
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define void @inline_ssp_ssp() nounwind uwtable ssp {
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entry:
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; CHECK: @inline_ssp_ssp() nounwind uwtable ssp
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call void @fun_ssp()
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ret void
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}
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define void @inline_ssp_nossp() nounwind uwtable {
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entry:
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; CHECK: @inline_ssp_nossp() nounwind uwtable ssp
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call void @fun_ssp()
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ret void
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}
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define void @inline_nossp_req() nounwind uwtable sspreq {
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entry:
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; CHECK: @inline_nossp_req() nounwind uwtable sspreq
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call void @fun_nossp()
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ret void
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}
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define void @inline_nossp_strong() nounwind uwtable sspstrong {
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entry:
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; CHECK: @inline_nossp_strong() nounwind uwtable sspstrong
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call void @fun_nossp()
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ret void
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}
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define void @inline_nossp_ssp() nounwind uwtable ssp {
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entry:
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; CHECK: @inline_nossp_ssp() nounwind uwtable ssp
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call void @fun_nossp()
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ret void
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}
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define void @inline_nossp_nossp() nounwind uwtable {
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entry:
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; CHECK: @inline_nossp_nossp() nounwind uwtable
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call void @fun_nossp()
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ret void
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}
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declare i32 @printf(i8*, ...)
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