1; RUN: opt < %s -asan -asan-module -S | FileCheck %s
2
3target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
4target triple = "x86_64-unknown-linux-gnu"
5
6; Globals:
7@global = global i32 0, align 4
8@dyn_init_global = global i32 0, align 4
9@blacklisted_global = global i32 0, align 4
10@_ZZ4funcvE10static_var = internal global i32 0, align 4
11@.str = private unnamed_addr constant [14 x i8] c"Hello, world!\00", align 1
12@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_asan_globals.cpp, i8* null }]
13
14; Check that globals were instrumented:
15; CHECK: @global = global { i32, [60 x i8] } zeroinitializer, align 32
16; CHECK: @.str = internal unnamed_addr constant { [14 x i8], [50 x i8] } { [14 x i8] c"Hello, world!\00", [50 x i8] zeroinitializer }, align 32
17
18; Check emitted location descriptions:
19; CHECK: [[VARNAME:@__asan_gen_[0-9]+]] = private unnamed_addr constant [7 x i8] c"global\00", align 1
20; CHECK: [[FILENAME:@__asan_gen_[0-9]+]] = private unnamed_addr constant [22 x i8] c"/tmp/asan-globals.cpp\00", align 1
21; CHECK: [[LOCDESCR:@__asan_gen_[0-9]+]] = private unnamed_addr constant { [22 x i8]*, i32, i32 } { [22 x i8]* [[FILENAME]], i32 5, i32 5 }
22
23; Check that location decriptors and global names were passed into __asan_register_globals:
24; CHECK: i64 ptrtoint ([7 x i8]* [[VARNAME]] to i64)
25; CHECK: i64 ptrtoint ({ [22 x i8]*, i32, i32 }* [[LOCDESCR]] to i64)
26
27; Function Attrs: nounwind sanitize_address
28define internal void @__cxx_global_var_init() #0 section ".text.startup" {
29entry:
30  %0 = load i32, i32* @global, align 4
31  store i32 %0, i32* @dyn_init_global, align 4
32  ret void
33}
34
35; Function Attrs: nounwind sanitize_address
36define void @_Z4funcv() #1 {
37entry:
38  %literal = alloca i8*, align 8
39  store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i32 0, i32 0), i8** %literal, align 8
40  ret void
41}
42
43; Function Attrs: nounwind sanitize_address
44define internal void @_GLOBAL__sub_I_asan_globals.cpp() #0 section ".text.startup" {
45entry:
46  call void @__cxx_global_var_init()
47  ret void
48}
49
50attributes #0 = { nounwind sanitize_address }
51attributes #1 = { nounwind sanitize_address "less-precise-fpmad"="false" "no-frame-pointer-elim"="false" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "no-realign-stack" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
52
53!llvm.asan.globals = !{!0, !1, !2, !3, !4}
54!llvm.ident = !{!5}
55
56!0 = !{i32* @global, !6, !"global", i1 false, i1 false}
57!1 = !{i32* @dyn_init_global, !7, !"dyn_init_global", i1 true, i1 false}
58!2 = !{i32* @blacklisted_global, null, null, i1 false, i1 true}
59!3 = !{i32* @_ZZ4funcvE10static_var, !8, !"static_var", i1 false, i1 false}
60!4 = !{[14 x i8]* @.str, !9, !"<string literal>", i1 false, i1 false}
61
62!5 = !{!"clang version 3.5.0 (211282)"}
63
64!6 = !{!"/tmp/asan-globals.cpp", i32 5, i32 5}
65!7 = !{!"/tmp/asan-globals.cpp", i32 7, i32 5}
66!8 = !{!"/tmp/asan-globals.cpp", i32 12, i32 14}
67!9 = !{!"/tmp/asan-globals.cpp", i32 14, i32 25}
68