================
@@ -225,3 +227,63 @@ TEST_F(MemoryTest, TesetMemoryCacheRead) {
// instead of using an
// old cache
}
+
+/// A process class that reads `lower_byte(address)` for each `address` it
+/// reads.
+class DummyReaderProcess : public Process {
+public:
+ size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
+ Status &error) override {
+ uint8_t *buffer = static_cast<uint8_t *>(buf);
+ for (size_t addr = vm_addr; addr < vm_addr + size; addr++)
+ buffer[addr - vm_addr] = addr;
+ return size;
+ }
+ // Boilerplate, nothing interesting below.
+ DummyReaderProcess(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp)
+ : Process(target_sp, listener_sp) {}
+ bool CanDebug(lldb::TargetSP, bool) override { return true; }
+ Status DoDestroy() override { return {}; }
+ void RefreshStateAfterStop() override {}
+ bool DoUpdateThreadList(ThreadList &, ThreadList &) override { return false;
}
+ llvm::StringRef GetPluginName() override { return "Dummy"; }
+};
+
+TEST_F(MemoryTest, TestReadMemoryRanges) {
+ ArchSpec arch("x86_64-apple-macosx-");
+
+ Platform::SetHostPlatform(PlatformRemoteMacOSX::CreateInstance(true, &arch));
+
+ DebuggerSP debugger_sp = Debugger::CreateInstance();
+ ASSERT_TRUE(debugger_sp);
+
+ TargetSP target_sp = CreateTarget(debugger_sp, arch);
+ ASSERT_TRUE(target_sp);
+
+ ListenerSP listener_sp(Listener::MakeListener("dummy"));
+ ProcessSP process_sp =
+ std::make_shared<DummyReaderProcess>(target_sp, listener_sp);
+ ASSERT_TRUE(process_sp);
+
+ DummyProcess *process = static_cast<DummyProcess *>(process_sp.get());
+ process->SetMaxReadSize(1024);
+
+ llvm::SmallVector<uint8_t, 0> buffer(1024, 0);
+
+ // Read 8 ranges of 128 bytes, starting at random addresses
----------------
DavidSpickett wrote:
Ok part of this is me being lazy, but future me and anyone else will be even
more lazy, so add a comment that it is in fact a fixed seed.
A fixed arbitrary seed that is.
https://github.com/llvm/llvm-project/pull/163651
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