X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=retrace.py;fp=retrace.py;h=a450f8221ea47499622b118896fa6ed0f6783720;hb=1da480dd320a9d3d631a94025ca40609099f6d34;hp=e4d462ae99ed5bdabc8ecc8a473a21dfe53db05e;hpb=62abddc41c4f09d3688d7f56e097820cba8d16d3;p=apitrace diff --git a/retrace.py b/retrace.py index e4d462a..a450f82 100644 --- a/retrace.py +++ b/retrace.py @@ -33,13 +33,26 @@ import specs.stdapi as stdapi import specs.glapi as glapi -class ConstRemover(stdapi.Rebuilder): - '''Type visitor which strips out const qualifiers from types.''' +class MutableRebuilder(stdapi.Rebuilder): + '''Type visitor which derives a mutable type.''' def visitConst(self, const): + # Strip out const qualifier return const.type + def visitAlias(self, alias): + # Tear the alias on type changes + type = self.visit(alias.type) + if type is alias.type: + return alias + return type + + def visitReference(self, reference): + # Strip out references + return reference.type + def visitOpaque(self, opaque): + # Don't recursule return opaque @@ -51,6 +64,57 @@ def lookupHandle(handle, value): return "__%s_map[%s][%s]" % (handle.name, key_name, value) +class ValueAllocator(stdapi.Visitor): + + def visitLiteral(self, literal, lvalue, rvalue): + pass + + def visitConst(self, const, lvalue, rvalue): + self.visit(const.type, lvalue, rvalue) + + def visitAlias(self, alias, lvalue, rvalue): + self.visit(alias.type, lvalue, rvalue) + + def visitEnum(self, enum, lvalue, rvalue): + pass + + def visitBitmask(self, bitmask, lvalue, rvalue): + pass + + def visitArray(self, array, lvalue, rvalue): + print ' %s = _allocator.alloc<%s>(&%s);' % (lvalue, array.type, rvalue) + + def visitPointer(self, pointer, lvalue, rvalue): + print ' %s = _allocator.alloc<%s>(&%s);' % (lvalue, pointer.type, rvalue) + + def visitIntPointer(self, pointer, lvalue, rvalue): + pass + + def visitObjPointer(self, pointer, lvalue, rvalue): + pass + + def visitLinearPointer(self, pointer, lvalue, rvalue): + pass + + def visitReference(self, reference, lvalue, rvalue): + self.visit(reference.type, lvalue, rvalue); + + def visitHandle(self, handle, lvalue, rvalue): + pass + + def visitBlob(self, blob, lvalue, rvalue): + pass + + def visitString(self, string, lvalue, rvalue): + pass + + def visitStruct(self, struct, lvalue, rvalue): + pass + + def visitPolymorphic(self, polymorphic, lvalue, rvalue): + self.visit(polymorphic.defaultType, lvalue, rvalue) + + class ValueDeserializer(stdapi.Visitor): def visitLiteral(self, literal, lvalue, rvalue): @@ -69,37 +133,49 @@ class ValueDeserializer(stdapi.Visitor): self.visit(bitmask.type, lvalue, rvalue) def visitArray(self, array, lvalue, rvalue): - print ' const trace::Array *__a%s = dynamic_cast(&%s);' % (array.tag, rvalue) - print ' if (__a%s) {' % (array.tag) - length = '__a%s->values.size()' % array.tag - print ' %s = _allocator.alloc<%s>(%s);' % (lvalue, array.type, length) + + tmp = '__a_' + array.tag + '_' + str(self.seq) + self.seq += 1 + + print ' if (%s) {' % (lvalue,) + print ' const trace::Array *%s = dynamic_cast(&%s);' % (tmp, rvalue) + length = '%s->values.size()' % (tmp,) index = '__j' + array.tag print ' for (size_t {i} = 0; {i} < {length}; ++{i}) {{'.format(i = index, length = length) try: - self.visit(array.type, '%s[%s]' % (lvalue, index), '*__a%s->values[%s]' % (array.tag, index)) + self.visit(array.type, '%s[%s]' % (lvalue, index), '*%s->values[%s]' % (tmp, index)) finally: print ' }' - print ' } else {' - print ' %s = NULL;' % lvalue print ' }' def visitPointer(self, pointer, lvalue, rvalue): - print ' const trace::Array *__a%s = dynamic_cast(&%s);' % (pointer.tag, rvalue) - print ' if (__a%s) {' % (pointer.tag) - print ' %s = _allocator.alloc<%s>();' % (lvalue, pointer.type) + tmp = '__a_' + pointer.tag + '_' + str(self.seq) + self.seq += 1 + + print ' if (%s) {' % (lvalue,) + print ' const trace::Array *%s = dynamic_cast(&%s);' % (tmp, rvalue) try: - self.visit(pointer.type, '%s[0]' % (lvalue,), '*__a%s->values[0]' % (pointer.tag,)) + self.visit(pointer.type, '%s[0]' % (lvalue,), '*%s->values[0]' % (tmp,)) finally: - print ' } else {' - print ' %s = NULL;' % lvalue print ' }' def visitIntPointer(self, pointer, lvalue, rvalue): print ' %s = static_cast<%s>((%s).toPointer());' % (lvalue, pointer, rvalue) + def visitObjPointer(self, pointer, lvalue, rvalue): + old_lvalue = '(%s).toUIntPtr()' % (rvalue,) + new_lvalue = '_obj_map[%s]' % (old_lvalue,) + print ' if (retrace::verbosity >= 2) {' + print ' std::cout << std::hex << "obj 0x" << size_t(%s) << " <- 0x" << size_t(%s) << std::dec <<"\\n";' % (old_lvalue, new_lvalue) + print ' }' + print ' %s = static_cast<%s>(%s);' % (lvalue, pointer, new_lvalue) + def visitLinearPointer(self, pointer, lvalue, rvalue): print ' %s = static_cast<%s>(retrace::toPointer(%s));' % (lvalue, pointer, rvalue) + def visitReference(self, reference, lvalue, rvalue): + self.visit(reference.type, lvalue, rvalue); + def visitHandle(self, handle, lvalue, rvalue): #OpaqueValueDeserializer().visit(handle.type, lvalue, rvalue); self.visit(handle.type, lvalue, rvalue); @@ -115,6 +191,21 @@ class ValueDeserializer(stdapi.Visitor): def visitString(self, string, lvalue, rvalue): print ' %s = (%s)((%s).toString());' % (lvalue, string.expr, rvalue) + seq = 0 + + def visitStruct(self, struct, lvalue, rvalue): + tmp = '__s_' + struct.tag + '_' + str(self.seq) + self.seq += 1 + + print ' const trace::Struct *%s = dynamic_cast(&%s);' % (tmp, rvalue) + print ' assert(%s);' % (tmp) + for i in range(len(struct.members)): + member_type, member_name = struct.members[i] + self.visit(member_type, '%s.%s' % (lvalue, member_name), '*%s->members[%s]' % (tmp, i)) + + def visitPolymorphic(self, polymorphic, lvalue, rvalue): + self.visit(polymorphic.defaultType, lvalue, rvalue) + class OpaqueValueDeserializer(ValueDeserializer): '''Value extractor that also understands opaque values. @@ -165,11 +256,17 @@ class SwizzledValueRegistrator(stdapi.Visitor): def visitIntPointer(self, pointer, lvalue, rvalue): pass + def visitObjPointer(self, pointer, lvalue, rvalue): + print r' _obj_map[(%s).toUIntPtr()] = %s;' % (rvalue, lvalue) + def visitLinearPointer(self, pointer, lvalue, rvalue): assert pointer.size is not None if pointer.size is not None: print r' retrace::addRegion((%s).toUIntPtr(), %s, %s);' % (rvalue, lvalue, pointer.size) + def visitReference(self, reference, lvalue, rvalue): + pass + def visitHandle(self, handle, lvalue, rvalue): print ' %s __orig_result;' % handle.type OpaqueValueDeserializer().visit(handle.type, '__orig_result', rvalue); @@ -198,6 +295,22 @@ class SwizzledValueRegistrator(stdapi.Visitor): def visitString(self, string, lvalue, rvalue): pass + seq = 0 + + def visitStruct(self, struct, lvalue, rvalue): + tmp = '__s_' + struct.tag + '_' + str(self.seq) + self.seq += 1 + + print ' const trace::Struct *%s = dynamic_cast(&%s);' % (tmp, rvalue) + print ' assert(%s);' % (tmp,) + print ' (void)%s;' % (tmp,) + for i in range(len(struct.members)): + member_type, member_name = struct.members[i] + self.visit(member_type, '%s.%s' % (lvalue, member_name), '*%s->members[%s]' % (tmp, i)) + + def visitPolymorphic(self, polymorphic, lvalue, rvalue): + self.visit(polymorphic.defaultType, lvalue, rvalue) + class Retracer: @@ -207,31 +320,67 @@ class Retracer: print '}' print + def retraceInterfaceMethod(self, interface, method): + print 'static void retrace_%s__%s(trace::Call &call) {' % (interface.name, method.name) + self.retraceInterfaceMethodBody(interface, method) + print '}' + print + def retraceFunctionBody(self, function): assert function.sideeffects + self.deserializeArgs(function) + + self.invokeFunction(function) + + self.swizzleValues(function) + + def retraceInterfaceMethodBody(self, interface, method): + assert method.sideeffects + + self.deserializeThisPointer(interface) + + self.deserializeArgs(method) + + self.invokeInterfaceMethod(interface, method) + + self.swizzleValues(method) + + def deserializeThisPointer(self, interface): + print r' %s *_this;' % (interface.name,) + print r' _this = static_cast<%s *>(_obj_map[call.arg(0).toUIntPtr()]);' % (interface.name,) + print r' if (!_this) {' + print r' retrace::warning(call) << "NULL this pointer\n";' + print r' return;' + print r' }' + + def deserializeArgs(self, function): print ' retrace::ScopedAllocator _allocator;' print ' (void)_allocator;' success = True for arg in function.args: - arg_type = ConstRemover().visit(arg.type) - #print ' // %s -> %s' % (arg.type, arg_type) + arg_type = MutableRebuilder().visit(arg.type) print ' %s %s;' % (arg_type, arg.name) rvalue = 'call.arg(%u)' % (arg.index,) lvalue = arg.name try: self.extractArg(function, arg, arg_type, lvalue, rvalue) except NotImplementedError: - success = False - print ' %s = 0; // FIXME' % arg.name + success = False + print ' memset(&%s, 0, sizeof %s); // FIXME' % (arg.name, arg.name) + print + if not success: print ' if (1) {' self.failFunction(function) + if function.name[-1].islower(): + sys.stderr.write('warning: unsupported %s call\n' % function.name) print ' }' - self.invokeFunction(function) + + def swizzleValues(self, function): for arg in function.args: if arg.output: - arg_type = ConstRemover().visit(arg.type) + arg_type = MutableRebuilder().visit(arg.type) rvalue = 'call.arg(%u)' % (arg.index,) lvalue = arg.name try: @@ -244,10 +393,8 @@ class Retracer: try: self.regiterSwizzledValue(function.type, lvalue, rvalue) except NotImplementedError: + raise print ' // XXX: result' - if not success: - if function.name[-1].islower(): - sys.stderr.write('warning: unsupported %s call\n' % function.name) def failFunction(self, function): print ' if (retrace::verbosity >= 0) {' @@ -256,9 +403,15 @@ class Retracer: print ' return;' def extractArg(self, function, arg, arg_type, lvalue, rvalue): - ValueDeserializer().visit(arg_type, lvalue, rvalue) + ValueAllocator().visit(arg_type, lvalue, rvalue) + if arg.input: + ValueDeserializer().visit(arg_type, lvalue, rvalue) def extractOpaqueArg(self, function, arg, arg_type, lvalue, rvalue): + try: + ValueAllocator().visit(arg_type, lvalue, rvalue) + except NotImplementedError: + pass OpaqueValueDeserializer().visit(arg_type, lvalue, rvalue) def regiterSwizzledValue(self, type, lvalue, rvalue): @@ -274,29 +427,20 @@ class Retracer: else: print ' %s(%s);' % (function.name, arg_names) + def invokeInterfaceMethod(self, interface, method): + arg_names = ", ".join(method.argNames()) + if method.type is not stdapi.Void: + print ' %s __result;' % (method.type) + print ' __result = _this->%s(%s);' % (method.name, arg_names) + print ' (void)__result;' + else: + print ' _this->%s(%s);' % (method.name, arg_names) + def filterFunction(self, function): return True table_name = 'retrace::callbacks' - def retraceFunctions(self, functions): - functions = filter(self.filterFunction, functions) - - for function in functions: - if function.sideeffects: - self.retraceFunction(function) - - print 'const retrace::Entry %s[] = {' % self.table_name - for function in functions: - if function.sideeffects: - print ' {"%s", &retrace_%s},' % (function.name, function.name) - else: - print ' {"%s", &retrace::ignore},' % (function.name,) - print ' {NULL, NULL}' - print '};' - print - - def retraceApi(self, api): print '#include "os_time.hpp"' @@ -317,5 +461,32 @@ class Retracer: handle_names.add(handle.name) print - self.retraceFunctions(api.functions) + print 'static std::map _obj_map;' + print + + functions = filter(self.filterFunction, api.functions) + for function in functions: + if function.sideeffects: + self.retraceFunction(function) + interfaces = api.getAllInterfaces() + for interface in interfaces: + for method in interface.iterMethods(): + if method.sideeffects: + self.retraceInterfaceMethod(interface, method) + + print 'const retrace::Entry %s[] = {' % self.table_name + for function in functions: + if function.sideeffects: + print ' {"%s", &retrace_%s},' % (function.name, function.name) + else: + print ' {"%s", &retrace::ignore},' % (function.name,) + for interface in interfaces: + for method in interface.iterMethods(): + if method.sideeffects: + print ' {"%s::%s", &retrace_%s__%s},' % (interface.name, method.name, interface.name, method.name) + else: + print ' {"%s::%s", &retrace::ignore},' % (interface.name, method.name) + print ' {NULL, NULL}' + print '};' + print