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21184ec5c4
Summary: See D60593 for further information. This patch adds GWP-ASan support to the Scudo hardened allocator. It also implements end-to-end integration tests using Scudo as the backing allocator. The tests include crash handling for buffer over/underflow as well as use-after-free detection. Reviewers: vlad.tsyrklevich, cryptoad Reviewed By: vlad.tsyrklevich, cryptoad Subscribers: kubamracek, mgorny, #sanitizers, llvm-commits, morehouse Tags: #sanitizers, #llvm Differential Revision: https://reviews.llvm.org/D62929 llvm-svn: 363584
29 lines
847 B
C++
29 lines
847 B
C++
// REQUIRES: gwp_asan
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// This test ensures that normal allocation/memory access/deallocation works
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// as expected and we didn't accidentally break the supporting allocator.
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// RUN: %clangxx_gwp_asan %s -o %t
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// RUN: %env_gwp_asan_options=MaxSimultaneousAllocations=1 %run %t
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// RUN: %env_gwp_asan_options=MaxSimultaneousAllocations=2 %run %t
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// RUN: %env_gwp_asan_options=MaxSimultaneousAllocations=11 %run %t
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// RUN: %env_gwp_asan_options=MaxSimultaneousAllocations=12 %run %t
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// RUN: %env_gwp_asan_options=MaxSimultaneousAllocations=13 %run %t
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#include <cstdlib>
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int main() {
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void* Pointers[16];
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for (unsigned i = 0; i < 16; ++i) {
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char *Ptr = reinterpret_cast<char*>(malloc(1 << i));
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Pointers[i] = Ptr;
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*Ptr = 0;
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Ptr[(1 << i) - 1] = 0;
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}
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for (unsigned i = 0; i < 16; ++i) {
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free(Pointers[i]);
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}
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return 0;
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}
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