X-Git-Url: https://git.cworth.org/git?a=blobdiff_plain;f=retrace.py;h=5913f56c8550a23dc162054d2a1765e8ec2add26;hb=ad60fd108d331796173ad54356855d9a2d0d87ba;hp=7b8c3daf361a9fb73f41270461455751f78e6bae;hpb=4bcf82e956db2015c037253b32b531fd5082f961;p=apitrace

diff --git a/retrace.py b/retrace.py
index 7b8c3da..5913f56 100644
--- a/retrace.py
+++ b/retrace.py
@@ -26,21 +26,24 @@
 
 """Generic retracing code generator."""
 
-import stdapi
-import glapi
-from codegen import *
+
+import sys
+
+import specs.stdapi as stdapi
+import specs.glapi as glapi
 
 
 class ConstRemover(stdapi.Rebuilder):
+    '''Type visitor which strips out const qualifiers from types.'''
 
-    def visit_const(self, const):
+    def visitConst(self, const):
         return const.type
 
-    def visit_opaque(self, opaque):
+    def visitOpaque(self, opaque):
         return opaque
 
 
-def handle_entry(handle, value):
+def lookupHandle(handle, value):
     if handle.key is None:
         return "__%s_map[%s]" % (handle.name, value)
     else:
@@ -48,146 +51,169 @@ def handle_entry(handle, value):
         return "__%s_map[%s][%s]" % (handle.name, key_name, value)
 
 
-class ValueExtractor(stdapi.Visitor):
+class ValueDeserializer(stdapi.Visitor):
 
-    def visit_literal(self, literal, lvalue, rvalue):
-        if literal.format == 'Bool':
-            print '    %s = static_cast<bool>(%s);' % (lvalue, rvalue)
-        else:
-            print '    %s = %s;' % (lvalue, rvalue)
+    def visitLiteral(self, literal, lvalue, rvalue):
+        print '    %s = (%s).to%s();' % (lvalue, rvalue, literal.kind)
 
-    def visit_const(self, const, lvalue, rvalue):
+    def visitConst(self, const, lvalue, rvalue):
         self.visit(const.type, lvalue, rvalue)
 
-    def visit_alias(self, alias, lvalue, rvalue):
+    def visitAlias(self, alias, lvalue, rvalue):
         self.visit(alias.type, lvalue, rvalue)
     
-    def visit_enum(self, enum, lvalue, rvalue):
-        print '    %s = %s;' % (lvalue, rvalue)
+    def visitEnum(self, enum, lvalue, rvalue):
+        print '    %s = static_cast<%s>((%s).toSInt());' % (lvalue, enum, rvalue)
 
-    def visit_bitmask(self, bitmask, lvalue, rvalue):
+    def visitBitmask(self, bitmask, lvalue, rvalue):
         self.visit(bitmask.type, lvalue, rvalue)
 
-    def visit_array(self, array, lvalue, rvalue):
-        print '    const Trace::Array *__a%s = dynamic_cast<const Trace::Array *>(&%s);' % (array.id, rvalue)
-        print '    if (__a%s) {' % (array.id)
-        length = '__a%s->values.size()' % array.id
-        print '        %s = new %s[%s];' % (lvalue, array.type, length)
-        index = '__j' + array.id
+    def visitArray(self, array, lvalue, rvalue):
+        print '    const trace::Array *__a%s = dynamic_cast<const trace::Array *>(&%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)
+        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.id, index))
+            self.visit(array.type, '%s[%s]' % (lvalue, index), '*__a%s->values[%s]' % (array.tag, index))
         finally:
             print '        }'
             print '    } else {'
             print '        %s = NULL;' % lvalue
             print '    }'
     
-    def visit_pointer(self, pointer, lvalue, rvalue):
-        print '    const Trace::Array *__a%s = dynamic_cast<const Trace::Array *>(&%s);' % (pointer.id, rvalue)
-        print '    if (__a%s) {' % (pointer.id)
-        print '        %s = new %s;' % (lvalue, pointer.type)
+    def visitPointer(self, pointer, lvalue, rvalue):
+        print '    const trace::Array *__a%s = dynamic_cast<const trace::Array *>(&%s);' % (pointer.tag, rvalue)
+        print '    if (__a%s) {' % (pointer.tag)
+        print '        %s = _allocator.alloc<%s>();' % (lvalue, pointer.type)
         try:
-            self.visit(pointer.type, '%s[0]' % (lvalue,), '*__a%s->values[0]' % (pointer.id,))
+            self.visit(pointer.type, '%s[0]' % (lvalue,), '*__a%s->values[0]' % (pointer.tag,))
         finally:
             print '    } else {'
             print '        %s = NULL;' % lvalue
             print '    }'
 
-    def visit_handle(self, handle, lvalue, rvalue):
-        OpaqueValueExtractor().visit(handle.type, lvalue, rvalue);
-        new_lvalue = handle_entry(handle, lvalue)
-        print '    if (retrace::verbosity >= 2)'
+    def visitIntPointer(self, pointer, lvalue, rvalue):
+        print '    %s = static_cast<%s>((%s).toPointer());' % (lvalue, pointer, rvalue)
+
+    def visitLinearPointer(self, pointer, lvalue, rvalue):
+        print '    %s = static_cast<%s>(retrace::toPointer(%s));' % (lvalue, pointer, rvalue)
+
+    def visitHandle(self, handle, lvalue, rvalue):
+        #OpaqueValueDeserializer().visit(handle.type, lvalue, rvalue);
+        self.visit(handle.type, lvalue, rvalue);
+        new_lvalue = lookupHandle(handle, lvalue)
+        print '    if (retrace::verbosity >= 2) {'
         print '        std::cout << "%s " << size_t(%s) << " <- " << size_t(%s) << "\\n";' % (handle.name, lvalue, new_lvalue)
+        print '    }'
         print '    %s = %s;' % (lvalue, new_lvalue)
     
-    def visit_blob(self, blob, lvalue, rvalue):
+    def visitBlob(self, blob, lvalue, rvalue):
         print '    %s = static_cast<%s>((%s).toPointer());' % (lvalue, blob, rvalue)
     
-    def visit_string(self, string, lvalue, rvalue):
+    def visitString(self, string, lvalue, rvalue):
         print '    %s = (%s)((%s).toString());' % (lvalue, string.expr, rvalue)
 
 
-class OpaqueValueExtractor(ValueExtractor):
+class OpaqueValueDeserializer(ValueDeserializer):
     '''Value extractor that also understands opaque values.
 
     Normally opaque values can't be retraced, unless they are being extracted
     in the context of handles.'''
 
-    def visit_opaque(self, opaque, lvalue, rvalue):
-        print '    %s = static_cast<%s>((%s).toPointer());' % (lvalue, opaque, rvalue)
+    def visitOpaque(self, opaque, lvalue, rvalue):
+        print '    %s = static_cast<%s>(retrace::toPointer(%s));' % (lvalue, opaque, rvalue)
 
 
-class ValueWrapper(stdapi.Visitor):
+class SwizzledValueRegistrator(stdapi.Visitor):
+    '''Type visitor which will register (un)swizzled value pairs, to later be
+    swizzled.'''
 
-    def visit_literal(self, literal, lvalue, rvalue):
+    def visitLiteral(self, literal, lvalue, rvalue):
         pass
 
-    def visit_alias(self, alias, lvalue, rvalue):
+    def visitAlias(self, alias, lvalue, rvalue):
         self.visit(alias.type, lvalue, rvalue)
     
-    def visit_enum(self, enum, lvalue, rvalue):
+    def visitEnum(self, enum, lvalue, rvalue):
         pass
 
-    def visit_bitmask(self, bitmask, lvalue, rvalue):
+    def visitBitmask(self, bitmask, lvalue, rvalue):
         pass
 
-    def visit_array(self, array, lvalue, rvalue):
-        print '    const Trace::Array *__a%s = dynamic_cast<const Trace::Array *>(&%s);' % (array.id, rvalue)
-        print '    if (__a%s) {' % (array.id)
-        length = '__a%s->values.size()' % array.id
-        index = '__j' + array.id
+    def visitArray(self, array, lvalue, rvalue):
+        print '    const trace::Array *__a%s = dynamic_cast<const trace::Array *>(&%s);' % (array.tag, rvalue)
+        print '    if (__a%s) {' % (array.tag)
+        length = '__a%s->values.size()' % array.tag
+        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.id, index))
+            self.visit(array.type, '%s[%s]' % (lvalue, index), '*__a%s->values[%s]' % (array.tag, index))
         finally:
             print '        }'
             print '    }'
     
-    def visit_pointer(self, pointer, lvalue, rvalue):
-        print '    const Trace::Array *__a%s = dynamic_cast<const Trace::Array *>(&%s);' % (pointer.id, rvalue)
-        print '    if (__a%s) {' % (pointer.id)
+    def visitPointer(self, pointer, lvalue, rvalue):
+        print '    const trace::Array *__a%s = dynamic_cast<const trace::Array *>(&%s);' % (pointer.tag, rvalue)
+        print '    if (__a%s) {' % (pointer.tag)
         try:
-            self.visit(pointer.type, '%s[0]' % (lvalue,), '*__a%s->values[0]' % (pointer.id,))
+            self.visit(pointer.type, '%s[0]' % (lvalue,), '*__a%s->values[0]' % (pointer.tag,))
         finally:
             print '    }'
     
-    def visit_handle(self, handle, lvalue, rvalue):
+    def visitIntPointer(self, pointer, lvalue, rvalue):
+        pass
+    
+    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 visitHandle(self, handle, lvalue, rvalue):
         print '    %s __orig_result;' % handle.type
-        OpaqueValueExtractor().visit(handle.type, '__orig_result', rvalue);
+        OpaqueValueDeserializer().visit(handle.type, '__orig_result', rvalue);
         if handle.range is None:
             rvalue = "__orig_result"
-            entry = handle_entry(handle, rvalue) 
+            entry = lookupHandle(handle, rvalue) 
             print "    %s = %s;" % (entry, lvalue)
-            print '    if (retrace::verbosity >= 2)'
+            print '    if (retrace::verbosity >= 2) {'
             print '        std::cout << "{handle.name} " << {rvalue} << " -> " << {lvalue} << "\\n";'.format(**locals())
+            print '    }'
         else:
-            i = '__h' + handle.id
+            i = '__h' + handle.tag
             lvalue = "%s + %s" % (lvalue, i)
             rvalue = "__orig_result + %s" % (i,)
-            entry = handle_entry(handle, rvalue) 
+            entry = lookupHandle(handle, rvalue) 
             print '    for ({handle.type} {i} = 0; {i} < {handle.range}; ++{i}) {{'.format(**locals())
             print '        {entry} = {lvalue};'.format(**locals())
-            print '        if (retrace::verbosity >= 2)'
+            print '        if (retrace::verbosity >= 2) {'
             print '            std::cout << "{handle.name} " << ({rvalue}) << " -> " << ({lvalue}) << "\\n";'.format(**locals())
+            print '        }'
             print '    }'
     
-    def visit_blob(self, blob, lvalue, rvalue):
+    def visitBlob(self, blob, lvalue, rvalue):
         pass
     
-    def visit_string(self, string, lvalue, rvalue):
+    def visitString(self, string, lvalue, rvalue):
         pass
 
 
 class Retracer:
 
-    def retrace_function(self, function):
-        print 'static void retrace_%s(Trace::Call &call) {' % function.name
-        self.retrace_function_body(function)
+    def retraceFunction(self, function):
+        print 'static void retrace_%s(trace::Call &call) {' % function.name
+        self.retraceFunctionBody(function)
         print '}'
         print
 
-    def retrace_function_body(self, function):
+    def retraceFunctionBody(self, function):
+        if not function.sideeffects:
+            print '    (void)call;'
+            return
+
+        print '    retrace::ScopedAllocator _allocator;'
+        print '    (void)_allocator;'
         success = True
         for arg in function.args:
             arg_type = ConstRemover().visit(arg.type)
@@ -196,82 +222,87 @@ class Retracer:
             rvalue = 'call.arg(%u)' % (arg.index,)
             lvalue = arg.name
             try:
-                self.extract_arg(function, arg, arg_type, lvalue, rvalue)
+                self.extractArg(function, arg, arg_type, lvalue, rvalue)
             except NotImplementedError:
                 success = False
                 print '    %s = 0; // FIXME' % arg.name
         if not success:
-            self.fail_function(function)
-        self.call_function(function)
+            print '    if (1) {'
+            self.failFunction(function)
+            print '    }'
+        self.invokeFunction(function)
         for arg in function.args:
             if arg.output:
                 arg_type = ConstRemover().visit(arg.type)
                 rvalue = 'call.arg(%u)' % (arg.index,)
                 lvalue = arg.name
                 try:
-                    ValueWrapper().visit(arg_type, lvalue, rvalue)
+                    self.regiterSwizzledValue(arg_type, lvalue, rvalue)
                 except NotImplementedError:
-                    print '   // FIXME: %s' % arg.name
+                    print '    // XXX: %s' % arg.name
         if function.type is not stdapi.Void:
             rvalue = '*call.ret'
             lvalue = '__result'
             try:
-                ValueWrapper().visit(function.type, lvalue, rvalue)
+                self.regiterSwizzledValue(function.type, lvalue, rvalue)
             except NotImplementedError:
-                print '   // FIXME: result'
+                print '    // XXX: result'
+        if not success:
+            if function.name[-1].islower():
+                sys.stderr.write('warning: unsupported %s call\n' % function.name)
 
-    def fail_function(self, function):
-        print '    if (retrace::verbosity >= 0)'
-        print '        std::cerr << "warning: unsupported call %s\\n";' % function.name
+    def failFunction(self, function):
+        print '    if (retrace::verbosity >= 0) {'
+        print '        retrace::unsupported(call);'
+        print '    }'
         print '    return;'
 
-    def extract_arg(self, function, arg, arg_type, lvalue, rvalue):
-        ValueExtractor().visit(arg_type, lvalue, rvalue)
+    def extractArg(self, function, arg, arg_type, lvalue, rvalue):
+        ValueDeserializer().visit(arg_type, lvalue, rvalue)
+    
+    def extractOpaqueArg(self, function, arg, arg_type, lvalue, rvalue):
+        OpaqueValueDeserializer().visit(arg_type, lvalue, rvalue)
+
+    def regiterSwizzledValue(self, type, lvalue, rvalue):
+        visitor = SwizzledValueRegistrator()
+        visitor.visit(type, lvalue, rvalue)
 
-    def call_function(self, function):
-        arg_names = ", ".join([arg.name for arg in function.args])
+    def invokeFunction(self, function):
+        arg_names = ", ".join(function.argNames())
         if function.type is not stdapi.Void:
             print '    %s __result;' % (function.type)
             print '    __result = %s(%s);' % (function.name, arg_names)
+            print '    (void)__result;'
         else:
             print '    %s(%s);' % (function.name, arg_names)
 
-    def filter_function(self, function):
+    def filterFunction(self, function):
         return True
 
-    def retrace_functions(self, functions):
-        functions = filter(self.filter_function, functions)
+    table_name = 'retrace::callbacks'
 
-        for function in functions:
-            if function.sideeffects:
-                self.retrace_function(function)
-
-        print 'void retrace::retrace_call(Trace::Call &call) {'
-        print '    const char *name = call.name().c_str();'
-        print
+    def retraceFunctions(self, functions):
+        functions = filter(self.filterFunction, functions)
 
-        func_dict = dict([(function.name, function) for function in functions])
-
-        def handle_case(function_name):
-            function = func_dict[function_name]
-            if function.sideeffects:
-                print '        retrace_%s(call);' % function.name
-            print '        return;'
-    
-        string_switch('name', func_dict.keys(), handle_case)
+        for function in functions:
+            self.retraceFunction(function)
 
-        print '    retrace_unknown(call);'
-        print '}'
+        print 'const retrace::Entry %s[] = {' % self.table_name
+        for function in functions:
+            print '    {"%s", &retrace_%s},' % (function.name, function.name)
+        print '    {NULL, NULL}'
+        print '};'
         print
 
 
-    def retrace_api(self, api):
+    def retraceApi(self, api):
 
+        print '#include "os_time.hpp"'
         print '#include "trace_parser.hpp"'
         print '#include "retrace.hpp"'
         print
 
-        types = api.all_types()
+        types = api.getAllTypes()
         handles = [type for type in types if isinstance(type, stdapi.Handle)]
         handle_names = set()
         for handle in handles:
@@ -284,5 +315,5 @@ class Retracer:
                 handle_names.add(handle.name)
         print
 
-        self.retrace_functions(api.functions)
+        self.retraceFunctions(api.functions)