diff --git a/Tests/UserspaceEmulator/CMakeLists.txt b/Tests/UserspaceEmulator/CMakeLists.txt deleted file mode 100644 index 7374bde38a..0000000000 --- a/Tests/UserspaceEmulator/CMakeLists.txt +++ /dev/null @@ -1,13 +0,0 @@ -set(TEST_SOURCES - test-run-ls.cpp - ue-write-oob.cpp -) - -# FIXME: These tests do not use LibTest -foreach(source IN LISTS TEST_SOURCES) - get_filename_component(test_name "${source}" NAME_WE) - add_executable("${test_name}" "${source}") - target_link_libraries("${test_name}" PRIVATE LibCore) - serenity_set_implicit_links("${test_name}") - install(TARGETS "${test_name}" RUNTIME DESTINATION usr/Tests/UserEmulator) -endforeach() diff --git a/Tests/UserspaceEmulator/ue-write-oob.cpp b/Tests/UserspaceEmulator/ue-write-oob.cpp deleted file mode 100644 index a6b251fd76..0000000000 --- a/Tests/UserspaceEmulator/ue-write-oob.cpp +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright (c) 2021, Ben Wiederhake - * - * SPDX-License-Identifier: BSD-2-Clause - */ - -#include -#include -#include -#include -#include - -static void write8(void* ptr) { *(uint8_t volatile*)ptr = 1; } -static void write16(void* ptr) { *(uint16_t volatile*)ptr = 1; } -static void write32(void* ptr) { *(uint32_t volatile*)ptr = 1; } -static void write64(void* ptr) { *(double volatile*)ptr = 1.0; } -// A u64 write might be translated by the compiler as a 32-then-32-bit write: -// static void write64_bad(void* ptr) { *(volatile uint64_t*)ptr = 1.0; } -// Let's hope this won't be translated like that. -// Godbolt says yes: https://godbolt.org/z/1b9WGo - -static void run_test(void* region, ssize_t offset, size_t bits) -{ - void* ptr = (char*)region + offset; - printf("Writing to %p\n", ptr); - switch (bits) { - case 8: - write8(ptr); - break; - case 16: - write16(ptr); - break; - case 32: - write32(ptr); - break; - case 64: - write64(ptr); - break; - default: - VERIFY_NOT_REACHED(); - } -} - -int main(int argc, char** argv) -{ - bool do_static = false; - int size = 10 * PAGE_SIZE; - int offset = 10 * PAGE_SIZE - 1; - int bits = 16; - - auto args_parser = Core::ArgsParser(); - args_parser.set_general_help( - "Access out of bounds memory; a great testcase for UserEmulator."); - args_parser.add_option(do_static, "Use a static region instead of an mmap'ed region. Fixes 'size' to 10*PAGESIZE = 40960. (Default: false)", "static", 'S'); - args_parser.add_option(size, "The size of the region to allocate. (Default: 10*PAGESIZE = 40960)", "size", 's', "size"); - args_parser.add_option(offset, "The signed offset at which to start writing. (Default: 10*PAGESIZE-1 = 40959)", "offset", 'o', "offset"); - args_parser.add_option(bits, "Amount of bits to write in a single instruction. (Default: 16)", "bits", 'b', "bits"); - args_parser.parse(argc, argv); - - if (do_static) - size = 10 * PAGE_SIZE; - - printf("Writing %d bits to %s region of size %d at offset %d.\n", - bits, do_static ? "static" : "MMAP", size, offset); - - if (do_static) { - // Let's just hope the linker puts nothing after it! - static unsigned char region[PAGE_SIZE * 10] = { 0 }; - - run_test(region, offset, 64); - } else { - void* region = mmap(nullptr, size, PROT_READ | PROT_WRITE, MAP_ANONYMOUS | MAP_PRIVATE, 0, 0); - VERIFY(region); - run_test(region, offset, bits); - } - - printf("FAIL (should have caused SIGSEGV)\n"); - return 1; -}