323 lines
11 KiB
C++
323 lines
11 KiB
C++
#include "bytecode.h"
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#include "numeric.h"
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#ifdef _MSC_VER
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#define snprintf _snprintf
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#endif
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#define DECLARE_PYTHON(maj, min) \
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extern int python_##maj##min##_map(int); \
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extern int python_##maj##min##_unmap(int);
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DECLARE_PYTHON(1, 0)
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DECLARE_PYTHON(1, 1)
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DECLARE_PYTHON(1, 3)
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DECLARE_PYTHON(1, 4)
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DECLARE_PYTHON(1, 5)
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DECLARE_PYTHON(1, 6)
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DECLARE_PYTHON(2, 0)
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DECLARE_PYTHON(2, 1)
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DECLARE_PYTHON(2, 2)
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DECLARE_PYTHON(2, 3)
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DECLARE_PYTHON(2, 4)
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DECLARE_PYTHON(2, 5)
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DECLARE_PYTHON(2, 6)
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DECLARE_PYTHON(2, 7)
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DECLARE_PYTHON(3, 0)
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DECLARE_PYTHON(3, 1)
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const char* Pyc::OpcodeName(int opcode)
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{
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static const char* opcode_names[] = {
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"STOP_CODE", "POP_TOP", "ROT_TWO", "ROT_THREE", "DUP_TOP", "UNARY_POSITIVE",
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"UNARY_NEGATIVE", "UNARY_NOT", "UNARY_CONVERT", "UNARY_CALL",
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"UNARY_INVERT", "BINARY_POWER", "BINARY_MULTIPLY", "BINARY_DIVIDE",
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"BINARY_MODULO", "BINARY_ADD", "BINARY_SUBTRACT", "BINARY_SUBSCR",
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"BINARY_CALL", "SLICE_0", "SLICE_1", "SLICE_2", "SLICE_3", "STORE_SLICE_0",
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"STORE_SLICE_1", "STORE_SLICE_2", "STORE_SLICE_3", "DELETE_SLICE_0",
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"DELETE_SLICE_1", "DELETE_SLICE_2", "DELETE_SLICE_3", "STORE_SUBSCR",
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"DELETE_SUBSCR", "BINARY_LSHIFT", "BINARY_RSHIFT", "BINARY_AND",
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"BINARY_XOR", "BINARY_OR", "PRINT_EXPR", "PRINT_ITEM", "PRINT_NEWLINE",
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"BREAK_LOOP", "RAISE_EXCEPTION", "LOAD_LOCALS", "RETURN_VALUE",
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"LOAD_GLOBALS", "EXEC_STMT", "BUILD_FUNCTION", "POP_BLOCK", "END_FINALLY",
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"BUILD_CLASS", "ROT_FOUR", "NOP", "LIST_APPEND", "BINARY_FLOOR_DIVIDE",
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"BINARY_TRUE_DIVIDE", "INPLACE_FLOOR_DIVIDE", "INPLACE_TRUE_DIVIDE",
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"STORE_MAP", "INPLACE_ADD", "INPLACE_SUBTRACT", "INPLACE_MULTIPLY",
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"INPLACE_DIVIDE", "INPLACE_MODULO", "INPLACE_POWER", "GET_ITER",
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"PRINT_ITEM_TO", "PRINT_NEWLINE_TO", "INPLACE_LSHIFT", "INPLACE_RSHIFT",
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"INPLACE_AND", "INPLACE_XOR", "INPLACE_OR", "WITH_CLEANUP", "IMPORT_STAR",
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"YIELD_VALUE", "LOAD_BUILD_CLASS", "STORE_LOCALS", "POP_EXCEPT", "SET_ADD",
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"STORE_NAME", "DELETE_NAME", "UNPACK_TUPLE", "UNPACK_LIST", "UNPACK_ARG",
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"STORE_ATTR", "DELETE_ATTR", "STORE_GLOBAL", "DELETE_GLOBAL",
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"UNPACK_VARARG", "LOAD_CONST", "LOAD_NAME", "BUILD_TUPLE", "BUILD_LIST",
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"BUILD_MAP", "LOAD_ATTR", "COMPARE_OP", "IMPORT_NAME", "IMPORT_FROM",
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"JUMP_FORWARD", "JUMP_IF_FALSE", "JUMP_IF_TRUE", "JUMP_ABSOLUTE",
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"FOR_LOOP", "LOAD_LOCAL", "LOAD_GLOBAL", "SET_FUNC_ARGS", "SETUP_LOOP",
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"SETUP_EXCEPT", "SETUP_FINALLY", "RESERVE_FAST", "LOAD_FAST",
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"STORE_FAST", "DELETE_FAST", "SET_LINENO", "RAISE_VARARGS",
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"CALL_FUNCTION", "MAKE_FUNCTION", "BUILD_SLICE", "CALL_FUNCTION_VAR",
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"CALL_FUNCTION_KW", "CALL_FUNCTION_VAR_KW", "UNPACK_SEQUENCE", "FOR_ITER",
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"DUP_TOPX", "BUILD_SET", "JUMP_IF_FALSE_OR_POP", "JUMP_IF_TRUE_OR_POP",
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"POP_JUMP_IF_FALSE", "POP_JUMP_IF_TRUE", "CONTINUE_LOOP", "MAKE_CLOSURE",
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"LOAD_CLOSURE", "LOAD_DEREF", "STORE_DEREF", "EXTENDED_ARG", "SETUP_WITH",
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"SET_ADD", "MAP_ADD", "UNPACK_EX", "LIST_APPEND"
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};
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if (opcode < 0)
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return "<INVALID>";
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if (opcode < PYC_LAST_OPCODE)
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return opcode_names[opcode];
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static char badcode[10];
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snprintf(badcode, 10, "<%d>", opcode);
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return badcode;
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};
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int Pyc::ByteToOpcode(int maj, int min, int opcode)
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{
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switch (maj) {
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case 1:
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switch (min) {
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case 0: return python_10_map(opcode);
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case 1: return python_11_map(opcode);
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case 3: return python_13_map(opcode);
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case 4: return python_14_map(opcode);
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case 5: return python_15_map(opcode);
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case 6: return python_16_map(opcode);
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}
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break;
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case 2:
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switch (min) {
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case 0: return python_20_map(opcode);
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case 1: return python_21_map(opcode);
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case 2: return python_22_map(opcode);
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case 3: return python_23_map(opcode);
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case 4: return python_24_map(opcode);
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case 5: return python_25_map(opcode);
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case 6: return python_26_map(opcode);
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case 7: return python_27_map(opcode);
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}
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break;
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case 3:
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switch (min) {
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case 0: return python_30_map(opcode);
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case 1: return python_31_map(opcode);
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}
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break;
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}
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return PYC_INVALID_OPCODE;
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}
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bool Pyc::IsConstArg(int opcode)
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{
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return (opcode == Pyc::LOAD_CONST_A) || (opcode == Pyc::RESERVE_FAST_A);
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}
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bool Pyc::IsNameArg(int opcode)
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{
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return (opcode == Pyc::DELETE_ATTR_A) || (opcode == Pyc::DELETE_GLOBAL_A) ||
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(opcode == Pyc::DELETE_NAME_A) || (opcode == Pyc::IMPORT_FROM_A) ||
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(opcode == Pyc::IMPORT_NAME_A) || (opcode == Pyc::LOAD_ATTR_A) ||
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(opcode == Pyc::LOAD_GLOBAL_A) || (opcode == Pyc::LOAD_LOCAL_A) ||
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(opcode == Pyc::LOAD_NAME_A) || (opcode == Pyc::STORE_ATTR_A) ||
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(opcode == Pyc::STORE_GLOBAL_A) || (opcode == Pyc::STORE_NAME_A);
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}
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bool Pyc::IsVarNameArg(int opcode)
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{
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return (opcode == Pyc::DELETE_FAST_A) || (opcode == Pyc::LOAD_FAST_A) ||
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(opcode == Pyc::STORE_FAST_A);
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}
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bool Pyc::IsCellArg(int opcode)
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{
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return (opcode == Pyc::LOAD_CLOSURE_A) || (opcode == Pyc::LOAD_DEREF_A) ||
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(opcode == Pyc::STORE_DEREF_A);
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}
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bool Pyc::IsJumpOffsetArg(int opcode)
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{
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return (opcode == Pyc::JUMP_FORWARD_A) || (opcode == Pyc::JUMP_IF_FALSE_A) ||
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(opcode == Pyc::JUMP_IF_TRUE_A) || (opcode == Pyc::SETUP_LOOP_A) ||
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(opcode == Pyc::SETUP_FINALLY_A) || (opcode == Pyc::SETUP_EXCEPT_A) ||
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(opcode == Pyc::FOR_LOOP_A);
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}
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void print_const(PycRef<PycObject> obj, PycModule* mod)
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{
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switch (obj->type()) {
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case PycObject::TYPE_STRING:
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case PycObject::TYPE_STRINGREF:
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case PycObject::TYPE_INTERNED:
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OutputString(obj.cast<PycString>(), (mod->majorVer() == 3) ? 'b' : 0);
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break;
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case PycObject::TYPE_UNICODE:
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OutputString(obj.cast<PycString>(), (mod->majorVer() == 3) ? 0 : 'u');
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break;
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case PycObject::TYPE_TUPLE:
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{
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printf("(");
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PycTuple::value_t values = obj.cast<PycTuple>()->values();
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PycTuple::value_t::const_iterator it = values.begin();
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if (it != values.end()) {
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print_const(*it, mod);
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while (++it != values.end()) {
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printf(", ");
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print_const(*it, mod);
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}
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}
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if (values.size() == 1)
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printf(",)");
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else
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printf(")");
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}
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break;
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case PycObject::TYPE_LIST:
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{
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printf("[");
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PycList::value_t values = obj.cast<PycList>()->values();
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PycList::value_t::const_iterator it = values.begin();
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if (it != values.end()) {
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print_const(*it, mod);
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while (++it != values.end()) {
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printf(", ");
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print_const(*it, mod);
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}
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}
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printf("]");
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}
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break;
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case PycObject::TYPE_DICT:
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{
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printf("{");
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PycDict::key_t keys = obj.cast<PycDict>()->keys();
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PycDict::value_t values = obj.cast<PycDict>()->values();
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PycDict::key_t::const_iterator ki = keys.begin();
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PycDict::value_t::const_iterator vi = values.begin();
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if (ki != keys.end()) {
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print_const(*ki, mod);
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printf(": ");
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print_const(*vi, mod);
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while (++ki != keys.end()) {
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++vi;
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printf(", ");
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print_const(*ki, mod);
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printf(": ");
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print_const(*vi, mod);
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}
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}
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printf("}");
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}
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break;
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case PycObject::TYPE_SET:
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{
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printf("{");
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PycSet::value_t values = obj.cast<PycSet>()->values();
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PycSet::value_t::const_iterator it = values.begin();
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if (it != values.end()) {
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print_const(*it, mod);
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while (++it != values.end()) {
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printf(", ");
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print_const(*it, mod);
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}
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}
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printf("}");
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}
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break;
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case PycObject::TYPE_NONE:
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printf("None");
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break;
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case PycObject::TYPE_TRUE:
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printf("True");
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break;
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case PycObject::TYPE_FALSE:
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printf("False");
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break;
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case PycObject::TYPE_INT:
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printf("%d", obj.cast<PycInt>()->value());
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break;
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case PycObject::TYPE_FLOAT:
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printf("%s", obj.cast<PycFloat>()->value());
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break;
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case PycObject::TYPE_COMPLEX:
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printf("(%s+%sj)", obj.cast<PycComplex>()->value(),
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obj.cast<PycComplex>()->imag());
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break;
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case PycObject::TYPE_BINARY_FLOAT:
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printf("%g", obj.cast<PycCFloat>()->value());
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break;
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case PycObject::TYPE_BINARY_COMPLEX:
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printf("(%g+%gj)", obj.cast<PycCComplex>()->value(),
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obj.cast<PycCComplex>()->imag());
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break;
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case PycObject::TYPE_CODE:
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case PycObject::TYPE_CODE2:
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printf("<CODE> %s", obj.cast<PycCode>()->name()->value());
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break;
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}
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}
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void bc_next(PycBuffer& source, PycModule* mod, int& opcode, int& operand, int& pos)
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{
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opcode = Pyc::ByteToOpcode(mod->majorVer(), mod->minorVer(), source.getByte());
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operand = 0;
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bool haveExtArg = false;
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pos += 1;
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if (opcode == Pyc::EXTENDED_ARG_A) {
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operand = source.get16() << 16;
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opcode = source.getByte();
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haveExtArg = true;
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pos += 3;
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}
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if (opcode >= Pyc::PYC_HAVE_ARG) {
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// If we have an extended arg, we want to OR the lower part,
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// else we want the whole thing (in case it's negative). We use
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// the bool so that values between 0x8000 and 0xFFFF can be stored
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// without becoming negative
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if (haveExtArg)
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operand |= (source.get16() & 0xFFFF);
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else
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operand = source.get16();
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pos += 2;
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}
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}
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void bc_disasm(PycRef<PycCode> code, PycModule* mod, int indent)
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{
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PycBuffer source(code->code()->value(), code->code()->length());
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int opcode, operand;
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int pos = 0;
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while (!source.atEof()) {
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for (int i=0; i<indent; i++)
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printf(" ");
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printf("%-7d ", pos); // Current bytecode position
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bc_next(source, mod, opcode, operand, pos);
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printf("%-24s", Pyc::OpcodeName(opcode));
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if (opcode >= Pyc::PYC_HAVE_ARG) {
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if (Pyc::IsConstArg(opcode)) {
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printf("%d: ", operand);
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print_const(code->getConst(operand), mod);
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} else if (Pyc::IsNameArg(opcode)) {
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printf("%d: %s", operand, code->getName(operand)->value());
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} else if (Pyc::IsVarNameArg(opcode)) {
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printf("%d: %s", operand, code->getVarName(operand)->value());
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} else if (Pyc::IsCellArg(opcode)) {
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printf("%d: ", operand);
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print_const(code->getConst(operand), mod);
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} else if (Pyc::IsJumpOffsetArg(opcode)) {
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printf("%d (to %d)", operand, pos+operand);
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} else {
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printf("%d", operand);
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}
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}
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printf("\n");
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}
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}
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