82 lines
4.7 KiB
LLVM
82 lines
4.7 KiB
LLVM
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; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -asan-use-private-alias=0 -asan-globals-live-support=1 -S | FileCheck %s --check-prefixes=CHECK,NOALIAS
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; RUN: opt < %s -passes='asan-pipeline' -asan-use-private-alias=0 -asan-globals-live-support=1 -S | FileCheck %s --check-prefixes=CHECK,NOALIAS
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; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -asan-use-private-alias=1 -asan-globals-live-support=1 -S | FileCheck %s --check-prefixes=CHECK,ALIAS
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; RUN: opt < %s -passes='asan-pipeline' -asan-use-private-alias=1 -asan-globals-live-support=1 -S | FileCheck %s --check-prefixes=CHECK,ALIAS
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; RUN: opt < %s -asan -asan-module -enable-new-pm=0 -asan-use-private-alias=1 -asan-globals-live-support=1 -asan-mapping-scale=5 -S | FileCheck %s --check-prefixes=CHECK,ALIAS
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; RUN: opt < %s -passes='asan-pipeline' -asan-use-private-alias=1 -asan-globals-live-support=1 -asan-mapping-scale=5 -S | FileCheck %s --check-prefixes=CHECK,ALIAS
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target datalayout = "e-m:e-i64:64-f80:128-n8:16:32:64-S128"
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target triple = "x86_64-unknown-linux-gnu"
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; Globals:
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@global = global i32 0, align 4
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@dyn_init_global = global i32 0, align 4
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@blacklisted_global = global i32 0, align 4
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@_ZZ4funcvE10static_var = internal global i32 0, align 4
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@.str = private unnamed_addr constant [14 x i8] c"Hello, world!\00", align 1
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@llvm.global_ctors = appending global [1 x { i32, void ()*, i8* }] [{ i32, void ()*, i8* } { i32 65535, void ()* @_GLOBAL__sub_I_asan_globals.cpp, i8* null }]
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; Check that globals were instrumented:
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; CHECK: @global = global { i32, [60 x i8] } zeroinitializer, comdat, align 32
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; CHECK: @.str = internal constant { [14 x i8], [50 x i8] } { [14 x i8] c"Hello, world!\00", [50 x i8] zeroinitializer }, comdat($".str${{[01-9a-f]+}}"), align 32
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; Check emitted location descriptions:
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; CHECK: [[VARNAME:@___asan_gen_.[0-9]+]] = private unnamed_addr constant [7 x i8] c"global\00", align 1
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; CHECK: [[FILENAME:@___asan_gen_.[0-9]+]] = private unnamed_addr constant [22 x i8] c"/tmp/asan-globals.cpp\00", align 1
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; CHECK: [[LOCDESCR:@___asan_gen_.[0-9]+]] = private unnamed_addr constant { [22 x i8]*, i32, i32 } { [22 x i8]* [[FILENAME]], i32 5, i32 5 }
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; NOALIAS: @__asan_global_global = {{.*}}i64 ptrtoint ({ i32, [60 x i8] }* @global to i64){{.*}} section "asan_globals"{{.*}}, !associated
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; NOALIAS: @__asan_global_.str = {{.*}}i64 ptrtoint ({ [14 x i8], [50 x i8] }* @{{.str|1}} to i64){{.*}} section "asan_globals"{{.*}}, !associated
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; ALIAS: @__asan_global_global = {{.*}}i64 ptrtoint ({ i32, [60 x i8] }* @0 to i64){{.*}} section "asan_globals"{{.*}}, !associated
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; ALIAS: @__asan_global_.str = {{.*}}i64 ptrtoint ({ [14 x i8], [50 x i8] }* @3 to i64){{.*}} section "asan_globals"{{.*}}, !associated
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; The metadata has to be inserted to llvm.compiler.used to avoid being stripped
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; during LTO.
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; CHECK: @llvm.compiler.used {{.*}} @__asan_global_global {{.*}} section "llvm.metadata"
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; Check that location descriptors and global names were passed into __asan_register_globals:
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; CHECK: call void @__asan_register_elf_globals(i64 ptrtoint (i64* @___asan_globals_registered to i64), i64 ptrtoint (i64* @__start_asan_globals to i64), i64 ptrtoint (i64* @__stop_asan_globals to i64))
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; Function Attrs: nounwind sanitize_address
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define internal void @__cxx_global_var_init() #0 section ".text.startup" {
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entry:
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%0 = load i32, i32* @global, align 4
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store i32 %0, i32* @dyn_init_global, align 4
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ret void
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}
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; Function Attrs: nounwind sanitize_address
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define void @_Z4funcv() #1 {
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entry:
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%literal = alloca i8*, align 8
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store i8* getelementptr inbounds ([14 x i8], [14 x i8]* @.str, i32 0, i32 0), i8** %literal, align 8
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ret void
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}
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; Function Attrs: nounwind sanitize_address
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define internal void @_GLOBAL__sub_I_asan_globals.cpp() #0 section ".text.startup" {
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entry:
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call void @__cxx_global_var_init()
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ret void
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}
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attributes #0 = { nounwind sanitize_address }
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attributes #1 = { nounwind sanitize_address "less-precise-fpmad"="false" "frame-pointer"="none" "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" }
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!llvm.asan.globals = !{!0, !1, !2, !3, !4}
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!llvm.ident = !{!5}
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!0 = !{i32* @global, !6, !"global", i1 false, i1 false}
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!1 = !{i32* @dyn_init_global, !7, !"dyn_init_global", i1 true, i1 false}
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!2 = !{i32* @blacklisted_global, null, null, i1 false, i1 true}
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!3 = !{i32* @_ZZ4funcvE10static_var, !8, !"static_var", i1 false, i1 false}
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!4 = !{[14 x i8]* @.str, !9, !"<string literal>", i1 false, i1 false}
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!5 = !{!"clang version 3.5.0 (211282)"}
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!6 = !{!"/tmp/asan-globals.cpp", i32 5, i32 5}
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!7 = !{!"/tmp/asan-globals.cpp", i32 7, i32 5}
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!8 = !{!"/tmp/asan-globals.cpp", i32 12, i32 14}
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!9 = !{!"/tmp/asan-globals.cpp", i32 14, i32 25}
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