| ; NOTE: Assertions have been autogenerated by utils/update_test_checks.py UTC_ARGS: --version 2 |
| ; Test alloca instrumentation. |
| ; |
| ; RUN: opt < %s -passes=hwasan -hwasan-with-ifunc=1 -S | FileCheck %s --check-prefixes=DYNAMIC-SHADOW |
| ; RUN: opt < %s -passes=hwasan -hwasan-mapping-offset=0 -S | FileCheck %s --check-prefixes=ZERO-BASED-SHADOW |
| |
| target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" |
| target triple = "aarch64--linux-android10000" |
| |
| declare void @use32(ptr) |
| |
| define void @test_alloca() sanitize_hwaddress !dbg !15 { |
| ; DYNAMIC-SHADOW-LABEL: define void @test_alloca |
| ; DYNAMIC-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] { |
| ; DYNAMIC-SHADOW-NEXT: entry: |
| ; DYNAMIC-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr @__hwasan_shadow) |
| ; DYNAMIC-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0) |
| ; DYNAMIC-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64 |
| ; DYNAMIC-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20 |
| ; DYNAMIC-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]] |
| ; DYNAMIC-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56 |
| ; DYNAMIC-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16 |
| ; DYNAMIC-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP12:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP11]], !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG10]] |
| ; DYNAMIC-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG13:![0-9]+]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]] |
| ; DYNAMIC-SHADOW-NEXT: [[TMP19:%.*]] = getelementptr i8, ptr [[DOTHWASAN_SHADOW]], i64 [[TMP18]], !dbg [[DBG14]] |
| ; DYNAMIC-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]] |
| ; DYNAMIC-SHADOW-NEXT: ret void, !dbg [[DBG14]] |
| ; |
| ; ZERO-BASED-SHADOW-LABEL: define void @test_alloca |
| ; ZERO-BASED-SHADOW-SAME: () #[[ATTR0:[0-9]+]] personality ptr @__hwasan_personality_thunk !dbg [[DBG7:![0-9]+]] { |
| ; ZERO-BASED-SHADOW-NEXT: entry: |
| ; ZERO-BASED-SHADOW-NEXT: [[DOTHWASAN_SHADOW:%.*]] = call ptr asm "", "=r,0"(ptr null) |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP0:%.*]] = call ptr @llvm.frameaddress.p0(i32 0) |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP1:%.*]] = ptrtoint ptr [[TMP0]] to i64 |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP2:%.*]] = lshr i64 [[TMP1]], 20 |
| ; ZERO-BASED-SHADOW-NEXT: [[HWASAN_STACK_BASE_TAG:%.*]] = xor i64 [[TMP1]], [[TMP2]] |
| ; ZERO-BASED-SHADOW-NEXT: [[HWASAN_UAR_TAG:%.*]] = lshr i64 [[TMP1]], 56 |
| ; ZERO-BASED-SHADOW-NEXT: [[X:%.*]] = alloca { i32, [12 x i8] }, align 16 |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP3:%.*]] = xor i64 [[HWASAN_STACK_BASE_TAG]], 0, !dbg [[DBG10:![0-9]+]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP4:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP5:%.*]] = and i64 [[TMP4]], 72057594037927935, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP6:%.*]] = shl i64 [[TMP3]], 56, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP7:%.*]] = or i64 [[TMP5]], [[TMP6]], !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[X_HWASAN:%.*]] = inttoptr i64 [[TMP7]] to ptr, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP8:%.*]] = trunc i64 [[TMP3]] to i8, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP9:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP10:%.*]] = and i64 [[TMP9]], 72057594037927935, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP11:%.*]] = lshr i64 [[TMP10]], 4, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP12:%.*]] = inttoptr i64 [[TMP11]] to ptr, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP13:%.*]] = getelementptr i8, ptr [[TMP12]], i32 0, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: store i8 4, ptr [[TMP13]], align 1, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP14:%.*]] = getelementptr i8, ptr [[X]], i32 15, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: store i8 [[TMP8]], ptr [[TMP14]], align 1, !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: call void @llvm.dbg.value(metadata !DIArgList(ptr [[X]], ptr [[X]]), metadata [[META11:![0-9]+]], metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_tag_offset, 0, DW_OP_LLVM_arg, 1, DW_OP_LLVM_tag_offset, 0, DW_OP_plus, DW_OP_deref)), !dbg [[DBG10]] |
| ; ZERO-BASED-SHADOW-NEXT: call void @use32(ptr nonnull [[X_HWASAN]]), !dbg [[DBG13:![0-9]+]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP15:%.*]] = trunc i64 [[HWASAN_UAR_TAG]] to i8, !dbg [[DBG14:![0-9]+]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP16:%.*]] = ptrtoint ptr [[X]] to i64, !dbg [[DBG14]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP17:%.*]] = and i64 [[TMP16]], 72057594037927935, !dbg [[DBG14]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP18:%.*]] = lshr i64 [[TMP17]], 4, !dbg [[DBG14]] |
| ; ZERO-BASED-SHADOW-NEXT: [[TMP19:%.*]] = inttoptr i64 [[TMP18]] to ptr, !dbg [[DBG14]] |
| ; ZERO-BASED-SHADOW-NEXT: call void @llvm.memset.p0.i64(ptr align 1 [[TMP19]], i8 [[TMP15]], i64 1, i1 false), !dbg [[DBG14]] |
| ; ZERO-BASED-SHADOW-NEXT: ret void, !dbg [[DBG14]] |
| ; |
| entry: |
| %x = alloca i32, align 4 |
| call void @llvm.dbg.value(metadata !DIArgList(ptr %x, ptr %x), metadata !22, metadata !DIExpression(DW_OP_LLVM_arg, 0, DW_OP_LLVM_arg, 1, DW_OP_plus, DW_OP_deref)), !dbg !21 |
| call void @use32(ptr nonnull %x), !dbg !23 |
| ret void, !dbg !24 |
| } |
| |
| declare void @llvm.dbg.value(metadata, metadata, metadata) |
| |
| !llvm.dbg.cu = !{!0} |
| !llvm.module.flags = !{!3, !4} |
| !llvm.ident = !{!14} |
| |
| !0 = distinct !DICompileUnit(language: DW_LANG_C_plus_plus_14, file: !1, producer: "clang version 13.0.0", isOptimized: false, runtimeVersion: 0, emissionKind: FullDebug, enums: !2, splitDebugInlining: false, nameTableKind: None) |
| !1 = !DIFile(filename: "alloca.cpp", directory: "/") |
| !2 = !{} |
| !3 = !{i32 7, !"Dwarf Version", i32 4} |
| !4 = !{i32 2, !"Debug Info Version", i32 3} |
| !14 = !{!"clang version 13.0.0"} |
| !15 = distinct !DISubprogram(name: "test_alloca", linkageName: "_Z11test_allocav", scope: !1, file: !1, line: 4, type: !16, scopeLine: 4, flags: DIFlagPrototyped, spFlags: DISPFlagDefinition, unit: !0, retainedNodes: !2) |
| !16 = !DISubroutineType(types: !17) |
| !17 = !{null} |
| !19 = !DIDerivedType(tag: DW_TAG_pointer_type, baseType: !20, size: 64) |
| !20 = !DIBasicType(name: "int", size: 32, encoding: DW_ATE_signed) |
| !21 = !DILocation(line: 0, scope: !15) |
| !22 = !DILocalVariable(name: "x", scope: !15, file: !1, line: 5, type: !20) |
| !23 = !DILocation(line: 7, column: 5, scope: !15) |
| !24 = !DILocation(line: 8, column: 1, scope: !15) |
