1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
|
; Testcase to check that module with different branch-target-enforcement can
; be mixed.
;
; RUN: llvm-as %s -o %t1.bc
; RUN: llvm-as %p/Inputs/foo.ll -o %t2.bc
; RUN: llvm-lto -exported-symbol main \
; RUN: -exported-symbol foo \
; RUN: -filetype=obj \
; RUN: %t1.bc %t2.bc \
; RUN: -o %t1.exe 2>&1 | FileCheck --allow-empty %s
; RUN: llvm-objdump -d %t1.exe | FileCheck --check-prefix=CHECK-DUMP %s
; RUN: llvm-readelf -n %t1.exe | FileCheck --check-prefix=CHECK-PROP %s
target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128"
target triple = "aarch64-unknown-linux-gnu"
declare i32 @foo();
define i32 @main() "sign-return-address"="non-leaf" "sign-return-address-key"="a_key" {
entry:
%add = call i32 @foo()
ret i32 %add
}
!llvm.module.flags = !{!0, !1, !2, !3 }
!0 = !{i32 8, !"branch-target-enforcement", i32 0}
!1 = !{i32 8, !"sign-return-address", i32 1}
!2 = !{i32 8, !"sign-return-address-all", i32 0}
!3 = !{i32 8, !"sign-return-address-with-bkey", i32 0}
; CHECK-NOT: linking module flags 'branch-target-enforcement': IDs have conflicting values in
; CHECK-DUMP: <main>:
; CHECK-DUMP: bl 0x8 <main+0x8>
; CHECK-DUMP: <foo>:
; `main` doesn't support BTI while `foo` does, so in the binary
; we should see only PAC which is supported by both.
; CHECK-PROP: Properties: aarch64 feature: PAC
|
