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Tests: Make TestEFault not rely on automatic guard pages
I'm about to break automatic guard page allocation in sys$mmap(), so we need to fix this test to not rely on it.
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@ -48,6 +48,9 @@ TEST_CASE(test_efault)
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EXPECT_EFAULT(read, one_page, 4097);
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EXPECT_EFAULT(read, one_page - 1, 4096);
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// Make an unused hole mapping to create some inaccessible distance between our one and two-page mappings.
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(void)mmap(nullptr, 16384, PROT_NONE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
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// Test a two-page mapping (8KB)
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u8* two_page = (u8*)mmap(nullptr, 8192, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0);
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VERIFY(two_page);
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