1 ; Test KHWASan instrumentation. 2 ; Generic code is covered by ../kernel.ll, only the x86_64 specific code is 3 ; tested here. 4 ; 5 ; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s --allow-empty --check-prefixes=INIT 6 ; RUN: opt < %s -hwasan -hwasan-kernel=1 -S | FileCheck %s 7 ; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-mapping-offset=12345678 -S | FileCheck %s 8 ; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=0 -S | FileCheck %s --check-prefixes=CHECK,ABORT 9 ; RUN: opt < %s -hwasan -hwasan-kernel=1 -hwasan-recover=1 -S | FileCheck %s --check-prefixes=CHECK,RECOVER 10 11 target datalayout = "e-m:e-i8:8:32-i16:16:32-i64:64-i128:128-n32:64-S128" 12 target triple = "x86_64-unknown-linux-gnu" 13 14 define i8 @test_load(i8* %a) sanitize_hwaddress { 15 ; CHECK-LABEL: @test_load( 16 ; CHECK: %[[A:[^ ]*]] = ptrtoint i8* %a to i64 17 18 ; ABORT: call void asm sideeffect "int3\0Anopl 64(%rax)", "{rdi}"(i64 %[[A]]) 19 ; ABORT: unreachable 20 ; RECOVER: call void asm sideeffect "int3\0Anopl 96(%rax)", "{rdi}"(i64 %[[A]]) 21 ; RECOVER: br label 22 23 ; CHECK: %[[A:[^ ]*]] = ptrtoint i8* %a to i64 24 ; CHECK: %[[UNTAGGED:[^ ]*]] = or i64 %[[A]], -72057594037927936 25 ; CHECK: %[[UNTAGGED_PTR:[^ ]*]] = inttoptr i64 %[[UNTAGGED]] to i8* 26 ; CHECK: %[[G:[^ ]*]] = load i8, i8* %[[UNTAGGED_PTR]], align 4 27 ; CHECK: ret i8 %[[G]] 28 29 entry: 30 %b = load i8, i8* %a, align 4 31 ret i8 %b 32 } 33 34 ; INIT-NOT: call void @__hwasan_init 35
