[compiler-rt] r280361 - Copy over most of the scariness_score test to the general tests
Kostya Serebryany via llvm-commits
llvm-commits at lists.llvm.org
Thu Sep 1 10:41:29 PDT 2016
I don't like this. We should not be *copying* such large tests.
Please revert and find another solution (= *move* the test and make it work
on more platforms).
On Thu, Sep 1, 2016 at 5:29 AM, Filipe Cabecinhas via llvm-commits <
llvm-commits at lists.llvm.org> wrote:
> Author: filcab
> Date: Thu Sep 1 07:29:13 2016
> New Revision: 280361
>
> URL: http://llvm.org/viewvc/llvm-project?rev=280361&view=rev
> Log:
> Copy over most of the scariness_score test to the general tests
>
> The abort() test wasn't copied over (original case 22). This is because
> it doesn't work on OS X.
>
> If theres no buildbot problem with this test later today, I will
> minimize the Linux version.
>
> Added:
> compiler-rt/trunk/test/asan/TestCases/scariness_score_test.cc
>
> Added: compiler-rt/trunk/test/asan/TestCases/scariness_score_test.cc
> URL: http://llvm.org/viewvc/llvm-project/compiler-rt/trunk/
> test/asan/TestCases/scariness_score_test.cc?rev=280361&view=auto
> ============================================================
> ==================
> --- compiler-rt/trunk/test/asan/TestCases/scariness_score_test.cc (added)
> +++ compiler-rt/trunk/test/asan/TestCases/scariness_score_test.cc Thu
> Sep 1 07:29:13 2016
> @@ -0,0 +1,191 @@
> +// Test how we produce the scariness score.
> +
> +// RUN: %clangxx_asan -O0 %s -o %t
> +// On OSX and Windows, alloc_dealloc_mismatch=1 isn't 100% reliable, so
> it's
> +// off by default. It's safe for these tests, though, so we turn it on.
> +// RUN: export %env_asan_opts=detect_stack_use_after_return=1:handle_
> abort=1:print_scariness=1:alloc_dealloc_mismatch=1
> +// Make sure the stack is limited (may not be the default under GNU make)
> +// RUN: ulimit -s 4096
> +// RUN: not %run %t 1 2>&1 | FileCheck %s --check-prefix=CHECK1
> +// RUN: not %run %t 2 2>&1 | FileCheck %s --check-prefix=CHECK2
> +// RUN: not %run %t 3 2>&1 | FileCheck %s --check-prefix=CHECK3
> +// RUN: not %run %t 4 2>&1 | FileCheck %s --check-prefix=CHECK4
> +// RUN: not %run %t 5 2>&1 | FileCheck %s --check-prefix=CHECK5
> +// RUN: not %run %t 6 2>&1 | FileCheck %s --check-prefix=CHECK6
> +// RUN: not %run %t 7 2>&1 | FileCheck %s --check-prefix=CHECK7
> +// RUN: not %run %t 8 2>&1 | FileCheck %s --check-prefix=CHECK8
> +// RUN: not %run %t 9 2>&1 | FileCheck %s --check-prefix=CHECK9
> +// RUN: not %run %t 10 2>&1 | FileCheck %s --check-prefix=CHECK10
> +// RUN: not %run %t 11 2>&1 | FileCheck %s --check-prefix=CHECK11
> +// RUN: not %run %t 12 2>&1 | FileCheck %s --check-prefix=CHECK12
> +// RUN: not %run %t 13 2>&1 | FileCheck %s --check-prefix=CHECK13
> +// RUN: not %run %t 14 2>&1 | FileCheck %s --check-prefix=CHECK14
> +// RUN: not %run %t 15 2>&1 | FileCheck %s --check-prefix=CHECK15
> +// RUN: not %run %t 16 2>&1 | FileCheck %s --check-prefix=CHECK16
> +// RUN: not %run %t 17 2>&1 | FileCheck %s --check-prefix=CHECK17
> +// RUN: not %run %t 18 2>&1 | FileCheck %s --check-prefix=CHECK18
> +// RUN: not %run %t 19 2>&1 | FileCheck %s --check-prefix=CHECK19
> +// RUN: not %run %t 20 2>&1 | FileCheck %s --check-prefix=CHECK20
> +// RUN: not %run %t 21 2>&1 | FileCheck %s --check-prefix=CHECK21
> +// RUN: not %run %t 22 2>&1 | FileCheck %s --check-prefix=CHECK22
> +// RUN: not %run %t 23 2>&1 | FileCheck %s --check-prefix=CHECK23
> +// RUN: not %run %t 24 2>&1 | FileCheck %s --check-prefix=CHECK24
> +// RUN: not %run %t 25 2>&1 | FileCheck %s --check-prefix=CHECK25
> +// RUN: not %run %t 26 2>&1 | FileCheck %s --check-prefix=CHECK26
> +// Parts of the test are too platform-specific:
> +// REQUIRES: x86_64-target-arch
> +// REQUIRES: shell
> +#include <stdlib.h>
> +#include <stdio.h>
> +#include <string.h>
> +
> +#include <sanitizer/asan_interface.h>
> +
> +enum ReadOrWrite { Read = 0, Write = 1 };
> +
> +struct S32 {
> + char x[32];
> +};
> +
> +template<class T>
> +void HeapBuferOverflow(int Idx, ReadOrWrite w) {
> + T *t = new T[100];
> + static T sink;
> + if (w)
> + t[100 + Idx] = T();
> + else
> + sink = t[100 + Idx];
> + delete [] t;
> +}
> +
> +template<class T>
> +void HeapUseAfterFree(int Idx, ReadOrWrite w) {
> + T *t = new T[100];
> + static T sink;
> + sink = t[0];
> + delete [] t;
> + if (w)
> + t[Idx] = T();
> + else
> + sink = t[Idx];
> +}
> +
> +template<class T>
> +void StackBufferOverflow(int Idx, ReadOrWrite w) {
> + T t[100];
> + static T sink;
> + sink = t[Idx];
> + if (w)
> + t[100 + Idx] = T();
> + else
> + sink = t[100 + Idx];
> +}
> +
> +template<class T>
> +T *LeakStack() {
> + T t[100];
> + static volatile T *x;
> + x = &t[0];
> + return (T*)x;
> +}
> +
> +template<class T>
> +void StackUseAfterReturn(int Idx, ReadOrWrite w) {
> + static T sink;
> + T *t = LeakStack<T>();
> + if (w)
> + t[100 + Idx] = T();
> + else
> + sink = t[100 + Idx];
> +}
> +
> +char g1[100];
> +short g2[100];
> +int g4[100];
> +int64_t g8[100];
> +S32 gm[100];
> +
> +void DoubleFree() {
> + int *x = new int;
> + static volatile int two = 2;
> + for (int i = 0; i < two; i++)
> + delete x;
> +}
> +
> +void StackOverflow(int Idx) {
> + int some_stack[10000];
> + static volatile int *x;
> + x = &some_stack[0];
> + if (Idx > 0)
> + StackOverflow(Idx - 1);
> +}
> +
> +void UseAfterPoison() {
> + int buf[100];
> + __asan_poison_memory_region(buf, sizeof(buf));
> + static volatile int sink;
> + sink = buf[42];
> +}
> +
> +int main(int argc, char **argv) {
> + char arr[100];
> + static volatile int zero = 0;
> + static volatile int *zero_ptr = 0;
> + static volatile int *wild_addr = (int*)0x10000000; // System-dependent.
> + if (argc != 2) return 1;
> + int kind = atoi(argv[1]);
> + switch (kind) {
> + case 1: HeapBuferOverflow<char>(0, Read); break;
> + case 2: HeapBuferOverflow<int>(0, Read); break;
> + case 3: HeapBuferOverflow<short>(0, Write); break;
> + case 4: HeapBuferOverflow<int64_t>(2, Write); break;
> + case 5: HeapBuferOverflow<S32>(4, Write); break;
> + case 6: HeapUseAfterFree<char>(0, Read); break;
> + case 7: HeapUseAfterFree<int>(0, Write); break;
> + case 8: HeapUseAfterFree<int64_t>(0, Read); break;
> + case 9: HeapUseAfterFree<S32>(0, Write); break;
> + case 10: StackBufferOverflow<char>(0, Write); break;
> + case 11: StackBufferOverflow<int64_t>(0, Read); break;
> + case 12: StackBufferOverflow<int>(4, Write); break;
> + case 13: StackUseAfterReturn<char>(0, Read); break;
> + case 14: StackUseAfterReturn<S32>(0, Write); break;
> + case 15: g1[zero + 100] = 0; break;
> + case 16: gm[0] = gm[zero + 100 + 1]; break;
> + case 17: DoubleFree(); break;
> + case 18: StackOverflow(1000000); break;
> + case 19: *zero_ptr = 0; break;
> + case 20: *wild_addr = 0; break;
> + case 21: zero = *wild_addr; break;
> + case 22: ((void (*)(void))wild_addr)(); break;
> + case 23: delete (new int[10]); break;
> + case 24: free((char*)malloc(100) + 10); break;
> + case 25: memcpy(arr, arr+10, 20); break;
> + case 26: UseAfterPoison(); break;
> + // CHECK1: SCARINESS: 12 (1-byte-read-heap-buffer-overflow)
> + // CHECK2: SCARINESS: 17 (4-byte-read-heap-buffer-overflow)
> + // CHECK3: SCARINESS: 33 (2-byte-write-heap-buffer-overflow)
> + // CHECK4: SCARINESS: 52 (8-byte-write-heap-buffer-
> overflow-far-from-bounds)
> + // CHECK5: SCARINESS: 55 (multi-byte-write-heap-buffer-
> overflow-far-from-bounds)
> + // CHECK6: SCARINESS: 40 (1-byte-read-heap-use-after-free)
> + // CHECK7: SCARINESS: 46 (4-byte-write-heap-use-after-free)
> + // CHECK8: SCARINESS: 51 (8-byte-read-heap-use-after-free)
> + // CHECK9: SCARINESS: 55 (multi-byte-write-heap-use-after-free)
> + // CHECK10: SCARINESS: 46 (1-byte-write-stack-buffer-overflow)
> + // CHECK11: SCARINESS: 38 (8-byte-read-stack-buffer-overflow)
> + // CHECK12: SCARINESS: 61 (4-byte-write-stack-buffer-
> overflow-far-from-bounds)
> + // CHECK13: SCARINESS: 50 (1-byte-read-stack-use-after-return)
> + // CHECK14: SCARINESS: 65 (multi-byte-write-stack-use-after-return)
> + // CHECK15: SCARINESS: 31 (1-byte-write-global-buffer-overflow)
> + // CHECK16: SCARINESS: 36 (multi-byte-read-global-
> buffer-overflow-far-from-bounds)
> + // CHECK17: SCARINESS: 42 (double-free)
> + // CHECK18: SCARINESS: 10 (stack-overflow)
> + // CHECK19: SCARINESS: 10 (null-deref)
> + // CHECK20: SCARINESS: 30 (wild-addr-write)
> + // CHECK21: SCARINESS: 20 (wild-addr-read)
> + // CHECK22: SCARINESS: 60 (wild-jump)
> + // CHECK23: SCARINESS: 10 (alloc-dealloc-mismatch)
> + // CHECK24: SCARINESS: 40 (bad-free)
> + // CHECK25: SCARINESS: 10 (memcpy-param-overlap)
> + // CHECK26: SCARINESS: 27 (4-byte-read-use-after-poison)
> + }
> +}
>
>
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