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LibWasm: Implement module validation

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This commit is contained in:
Ali Mohammad Pur
2021-11-01 01:36:35 +03:30
committed by Andreas Kling
parent 30736c39b9
commit 7d1142e2c8
9 changed files with 3113 additions and 2 deletions
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24
Userland/Libraries/LibWasm/AbstractMachine/AbstractMachine.cpp
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@@ -8,6 +8,7 @@
#include <LibWasm/AbstractMachine/BytecodeInterpreter.h>
#include <LibWasm/AbstractMachine/Configuration.h>
#include <LibWasm/AbstractMachine/Interpreter.h>
#include <LibWasm/AbstractMachine/Validator.h>
#include <LibWasm/Types.h>
namespace Wasm {
@@ -100,8 +101,29 @@ ElementInstance* Store::get(ElementAddress address)
return &m_elements[value];
}
ErrorOr<void, ValidationError> AbstractMachine::validate(Module& module)
{
if (module.validation_status() != Module::ValidationStatus::Unchecked) {
if (module.validation_status() == Module::ValidationStatus::Valid)
return {};
return ValidationError { module.validation_error() };
}
auto result = Validator {}.validate(module);
if (result.is_error()) {
module.set_validation_error(result.error().error_string);
return result.release_error();
}
return {};
}
InstantiationResult AbstractMachine::instantiate(Module const& module, Vector<ExternValue> externs)
{
if (auto result = validate(const_cast<Module&>(module)); result.is_error())
return InstantiationError { String::formatted("Validation failed: {}", result.error()) };
auto main_module_instance_pointer = make<ModuleInstance>();
auto& main_module_instance = *main_module_instance_pointer;
Optional<InstantiationResult> instantiation_result;
@@ -110,8 +132,6 @@ InstantiationResult AbstractMachine::instantiate(Module const& module, Vector<Ex
main_module_instance.types() = section.types();
});
// FIXME: Validate stuff
Vector<Value> global_values;
Vector<Vector<Reference>> elements;
ModuleInstance auxiliary_instance;