From 786ecb2f810e73a616ca31aab586b299549164d8 Mon Sep 17 00:00:00 2001 From: John Doe Date: Tue, 28 Dec 2021 14:17:54 -0800 Subject: [PATCH 1/2] porting the project to cmkr... --- .clang-format | 17 +- .gitignore | 2 + CMakeLists.txt | 90 +++++++ README.md | 6 +- cmake.toml | 12 + cmkr.cmake | 162 ++++++++++++ dependencies/CMakeLists.txt | 54 ++++ dependencies/cmake.toml | 9 + dependencies/vmprofiler | 2 +- dependencies/xtils | 2 +- include/compiler.hpp | 131 ++++++++++ {src => include}/gen_code.hpp | 255 ++++++++++--------- src/parser.h => include/parser.hpp | 0 src/compiler.cpp | 385 +++++++++++++++-------------- src/compiler.h | 130 ---------- src/main.cpp | 245 +++++++++--------- src/parser.cpp | 43 ++-- vmassembler.sln | 266 -------------------- 18 files changed, 944 insertions(+), 867 deletions(-) create mode 100644 CMakeLists.txt create mode 100644 cmake.toml create mode 100644 cmkr.cmake create mode 100644 dependencies/CMakeLists.txt create mode 100644 dependencies/cmake.toml create mode 100644 include/compiler.hpp rename {src => include}/gen_code.hpp (64%) rename src/parser.h => include/parser.hpp (100%) delete mode 100644 src/compiler.h delete mode 100644 vmassembler.sln diff --git a/.clang-format b/.clang-format index 8063c5e..e90a94d 100644 --- a/.clang-format +++ b/.clang-format @@ -1,18 +1,5 @@ --- -BasedOnStyle: Microsoft -AlignAfterOpenBracket: Align -AllowAllArgumentsOnNextLine: 'true' -AllowAllParametersOfDeclarationOnNextLine: 'true' -AllowShortIfStatementsOnASingleLine: Never -BreakBeforeBraces: Allman -IndentWidth: '4' -Language: Cpp -NamespaceIndentation: All -SpacesInAngles: 'true' -SpacesInCStyleCastParentheses: 'true' -SpacesInContainerLiterals: 'true' -SpacesInParentheses: 'true' -SpacesInSquareBrackets: 'true' -UseTab: Never +BasedOnStyle: Chromium ... + diff --git a/.gitignore b/.gitignore index 72de34f..a68af18 100644 --- a/.gitignore +++ b/.gitignore @@ -9,6 +9,7 @@ *.user *.userosscache *.sln.docstates +*.exe # User-specific files (MonoDevelop/Xamarin Studio) *.userprefs @@ -17,6 +18,7 @@ mono_crash.* # Build results +build/ [Dd]ebug/ [Dd]ebugPublic/ [Rr]elease/ diff --git a/CMakeLists.txt b/CMakeLists.txt new file mode 100644 index 0000000..cc4cad0 --- /dev/null +++ b/CMakeLists.txt @@ -0,0 +1,90 @@ +# This file is automatically generated from cmake.toml - DO NOT EDIT +# See https://github.com/build-cpp/cmkr for more information + +cmake_minimum_required(VERSION 3.15) + +# Regenerate CMakeLists.txt automatically in the root project +set(CMKR_ROOT_PROJECT OFF) +if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR) + set(CMKR_ROOT_PROJECT ON) + + # Bootstrap cmkr + include(cmkr.cmake OPTIONAL RESULT_VARIABLE CMKR_INCLUDE_RESULT) + if(CMKR_INCLUDE_RESULT) + cmkr() + endif() + + # Enable folder support + set_property(GLOBAL PROPERTY USE_FOLDERS ON) +endif() + +# Create a configure-time dependency on cmake.toml to improve IDE support +if(CMKR_ROOT_PROJECT) + configure_file(cmake.toml cmake.toml COPYONLY) +endif() + +project(vmassembler) + +# dependencies +set(CMKR_CMAKE_FOLDER ${CMAKE_FOLDER}) +if(CMAKE_FOLDER) + set(CMAKE_FOLDER "${CMAKE_FOLDER}/dependencies") +else() + set(CMAKE_FOLDER dependencies) +endif() +add_subdirectory(dependencies) +set(CMAKE_FOLDER ${CMKR_CMAKE_FOLDER}) + +# Target vmassembler +set(CMKR_TARGET vmassembler) +set(vmassembler_SOURCES "") + +list(APPEND vmassembler_SOURCES + "src/compiler.cpp" + "src/main.cpp" + "src/parser.cpp" + "include/compiler.hpp" + "include/gen_code.hpp" + "include/parser.hpp" +) + +list(APPEND vmassembler_SOURCES + cmake.toml +) + +set(CMKR_SOURCES ${vmassembler_SOURCES}) +add_executable(vmassembler) + +if(vmassembler_SOURCES) + target_sources(vmassembler PRIVATE ${vmassembler_SOURCES}) +endif() + +get_directory_property(CMKR_VS_STARTUP_PROJECT DIRECTORY ${PROJECT_SOURCE_DIR} DEFINITION VS_STARTUP_PROJECT) +if(NOT CMKR_VS_STARTUP_PROJECT) + set_property(DIRECTORY ${PROJECT_SOURCE_DIR} PROPERTY VS_STARTUP_PROJECT vmassembler) +endif() + +source_group(TREE ${CMAKE_CURRENT_SOURCE_DIR} FILES ${vmassembler_SOURCES}) + +target_compile_definitions(vmassembler PRIVATE + NOMINMAX +) + +target_compile_features(vmassembler PRIVATE + cxx_std_20 +) + +target_include_directories(vmassembler PRIVATE + include +) + +target_link_libraries(vmassembler PRIVATE + vmprofiler + xtils + cli-parser + linux-pe +) + +unset(CMKR_TARGET) +unset(CMKR_SOURCES) + diff --git a/README.md b/README.md index 5f6560c..40bcbcd 100644 --- a/README.md +++ b/README.md @@ -145,8 +145,8 @@ int main() { // note, the header file generates an enum call "calls", inside of this enum will be an entry with the same name as your label! // note, the second template param is the return type... - const auto hello = vm::call< vm::calls::get_hello, vm::u64 >(); - const auto world = vm::call< vm::calls::get_world, vm::u64 >(); - std::printf( "> %s %s\n", ( char * )&hello, (char*)&world ); + const auto hello = vm::call< vm::calls::get_hello, vm::u64 >(); + const auto world = vm::call< vm::calls::get_world, vm::u64 >(); + std::printf( "> %s %s\n", ( char * )&hello, (char*)&world ); } ``` \ No newline at end of file diff --git a/cmake.toml b/cmake.toml new file mode 100644 index 0000000..7b1428e --- /dev/null +++ b/cmake.toml @@ -0,0 +1,12 @@ +[project] +name = "vmassembler" + +[subdir.dependencies] + +[target.vmassembler] +type = "executable" +compile-features = ["cxx_std_20"] +sources = ["src/**.cpp", "include/**.hpp"] +include-directories = ["include"] +link-libraries = ["vmprofiler", "xtils", "cli-parser", "linux-pe"] +compile-definitions = ["NOMINMAX"] \ No newline at end of file diff --git a/cmkr.cmake b/cmkr.cmake new file mode 100644 index 0000000..cc90624 --- /dev/null +++ b/cmkr.cmake @@ -0,0 +1,162 @@ +include_guard() + +# Change these defaults to point to your infrastructure if desired +set(CMKR_REPO "https://github.com/build-cpp/cmkr" CACHE STRING "cmkr git repository" FORCE) +set(CMKR_TAG "archive_264e4ace" CACHE STRING "cmkr git tag (this needs to be available forever)" FORCE) + +# Set these from the command line to customize for development/debugging purposes +set(CMKR_EXECUTABLE "" CACHE FILEPATH "cmkr executable") +set(CMKR_SKIP_GENERATION OFF CACHE BOOL "skip automatic cmkr generation") + +# Disable cmkr if generation is disabled +if(DEFINED ENV{CI} OR CMKR_SKIP_GENERATION) + message(STATUS "[cmkr] Skipping automatic cmkr generation") + macro(cmkr) + endmacro() + return() +endif() + +# Disable cmkr if no cmake.toml file is found +if(NOT EXISTS "${CMAKE_CURRENT_SOURCE_DIR}/cmake.toml") + message(AUTHOR_WARNING "[cmkr] Not found: ${CMAKE_CURRENT_SOURCE_DIR}/cmake.toml") + macro(cmkr) + endmacro() + return() +endif() + +# Convert a Windows native path to CMake path +if(CMKR_EXECUTABLE MATCHES "\\\\") + string(REPLACE "\\" "/" CMKR_EXECUTABLE_CMAKE "${CMKR_EXECUTABLE}") + set(CMKR_EXECUTABLE "${CMKR_EXECUTABLE_CMAKE}" CACHE FILEPATH "" FORCE) + unset(CMKR_EXECUTABLE_CMAKE) +endif() + +# Helper macro to execute a process (COMMAND_ERROR_IS_FATAL ANY is 3.19 and higher) +function(cmkr_exec) + execute_process(COMMAND ${ARGV} RESULT_VARIABLE CMKR_EXEC_RESULT) + if(NOT CMKR_EXEC_RESULT EQUAL 0) + message(FATAL_ERROR "cmkr_exec(${ARGV}) failed (exit code ${CMKR_EXEC_RESULT})") + endif() +endfunction() + +# Windows-specific hack (CMAKE_EXECUTABLE_PREFIX is not set at the moment) +if(WIN32) + set(CMKR_EXECUTABLE_NAME "cmkr.exe") +else() + set(CMKR_EXECUTABLE_NAME "cmkr") +endif() + +# Use cached cmkr if found +set(CMKR_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/_cmkr_${CMKR_TAG}") +set(CMKR_CACHED_EXECUTABLE "${CMKR_DIRECTORY}/bin/${CMKR_EXECUTABLE_NAME}") + +if(NOT CMKR_CACHED_EXECUTABLE STREQUAL CMKR_EXECUTABLE AND CMKR_EXECUTABLE MATCHES "^${CMAKE_CURRENT_BINARY_DIR}/_cmkr") + message(AUTHOR_WARNING "[cmkr] Upgrading '${CMKR_EXECUTABLE}' to '${CMKR_CACHED_EXECUTABLE}'") + unset(CMKR_EXECUTABLE CACHE) +endif() + +if(CMKR_EXECUTABLE AND EXISTS "${CMKR_EXECUTABLE}") + message(VERBOSE "[cmkr] Found cmkr: '${CMKR_EXECUTABLE}'") +elseif(CMKR_EXECUTABLE AND NOT CMKR_EXECUTABLE STREQUAL CMKR_CACHED_EXECUTABLE) + message(FATAL_ERROR "[cmkr] '${CMKR_EXECUTABLE}' not found") +else() + set(CMKR_EXECUTABLE "${CMKR_CACHED_EXECUTABLE}" CACHE FILEPATH "Full path to cmkr executable" FORCE) + message(VERBOSE "[cmkr] Bootstrapping '${CMKR_EXECUTABLE}'") + + message(STATUS "[cmkr] Fetching cmkr...") + if(EXISTS "${CMKR_DIRECTORY}") + cmkr_exec("${CMAKE_COMMAND}" -E rm -rf "${CMKR_DIRECTORY}") + endif() + find_package(Git QUIET REQUIRED) + cmkr_exec("${GIT_EXECUTABLE}" + clone + --config advice.detachedHead=false + --branch ${CMKR_TAG} + --depth 1 + ${CMKR_REPO} + "${CMKR_DIRECTORY}" + ) + message(STATUS "[cmkr] Building cmkr...") + cmkr_exec("${CMAKE_COMMAND}" + --no-warn-unused-cli + "${CMKR_DIRECTORY}" + "-B${CMKR_DIRECTORY}/build" + "-DCMAKE_BUILD_TYPE=Release" + "-DCMAKE_INSTALL_PREFIX=${CMKR_DIRECTORY}" + "-DCMKR_GENERATE_DOCUMENTATION=OFF" + ) + cmkr_exec("${CMAKE_COMMAND}" + --build "${CMKR_DIRECTORY}/build" + --config Release + --parallel + ) + cmkr_exec("${CMAKE_COMMAND}" + --install "${CMKR_DIRECTORY}/build" + --config Release + --prefix "${CMKR_DIRECTORY}" + --component cmkr + ) + if(NOT EXISTS ${CMKR_EXECUTABLE}) + message(FATAL_ERROR "[cmkr] Failed to bootstrap '${CMKR_EXECUTABLE}'") + endif() + cmkr_exec("${CMKR_EXECUTABLE}" version) + message(STATUS "[cmkr] Bootstrapped ${CMKR_EXECUTABLE}") +endif() +execute_process(COMMAND "${CMKR_EXECUTABLE}" version + RESULT_VARIABLE CMKR_EXEC_RESULT +) +if(NOT CMKR_EXEC_RESULT EQUAL 0) + message(FATAL_ERROR "[cmkr] Failed to get version, try clearing the cache and rebuilding") +endif() + +# This is the macro that contains black magic +macro(cmkr) + # When this macro is called from the generated file, fake some internal CMake variables + get_source_file_property(CMKR_CURRENT_LIST_FILE "${CMAKE_CURRENT_LIST_FILE}" CMKR_CURRENT_LIST_FILE) + if(CMKR_CURRENT_LIST_FILE) + set(CMAKE_CURRENT_LIST_FILE "${CMKR_CURRENT_LIST_FILE}") + get_filename_component(CMAKE_CURRENT_LIST_DIR "${CMAKE_CURRENT_LIST_FILE}" DIRECTORY) + endif() + + # File-based include guard (include_guard is not documented to work) + get_source_file_property(CMKR_INCLUDE_GUARD "${CMAKE_CURRENT_LIST_FILE}" CMKR_INCLUDE_GUARD) + if(NOT CMKR_INCLUDE_GUARD) + set_source_files_properties("${CMAKE_CURRENT_LIST_FILE}" PROPERTIES CMKR_INCLUDE_GUARD TRUE) + + file(SHA256 "${CMAKE_CURRENT_LIST_FILE}" CMKR_LIST_FILE_SHA256_PRE) + + # Generate CMakeLists.txt + cmkr_exec("${CMKR_EXECUTABLE}" gen + WORKING_DIRECTORY "${CMAKE_CURRENT_SOURCE_DIR}" + ) + + file(SHA256 "${CMAKE_CURRENT_LIST_FILE}" CMKR_LIST_FILE_SHA256_POST) + + # Delete the temporary file if it was left for some reason + set(CMKR_TEMP_FILE "${CMAKE_CURRENT_SOURCE_DIR}/CMakerLists.txt") + if(EXISTS "${CMKR_TEMP_FILE}") + file(REMOVE "${CMKR_TEMP_FILE}") + endif() + + if(NOT CMKR_LIST_FILE_SHA256_PRE STREQUAL CMKR_LIST_FILE_SHA256_POST) + # Copy the now-generated CMakeLists.txt to CMakerLists.txt + # This is done because you cannot include() a file you are currently in + configure_file(CMakeLists.txt "${CMKR_TEMP_FILE}" COPYONLY) + + # Add the macro required for the hack at the start of the cmkr macro + set_source_files_properties("${CMKR_TEMP_FILE}" PROPERTIES + CMKR_CURRENT_LIST_FILE "${CMAKE_CURRENT_LIST_FILE}" + ) + + # 'Execute' the newly-generated CMakeLists.txt + include("${CMKR_TEMP_FILE}") + + # Delete the generated file + file(REMOVE "${CMKR_TEMP_FILE}") + + # Do not execute the rest of the original CMakeLists.txt + return() + endif() + # Resume executing the unmodified CMakeLists.txt + endif() +endmacro() diff --git a/dependencies/CMakeLists.txt b/dependencies/CMakeLists.txt new file mode 100644 index 0000000..644c422 --- /dev/null +++ b/dependencies/CMakeLists.txt @@ -0,0 +1,54 @@ +# This file is automatically generated from cmake.toml - DO NOT EDIT +# See https://github.com/build-cpp/cmkr for more information + +# Create a configure-time dependency on cmake.toml to improve IDE support +if(CMKR_ROOT_PROJECT) + configure_file(cmake.toml cmake.toml COPYONLY) +endif() + +# vmprofiler +set(CMKR_CMAKE_FOLDER ${CMAKE_FOLDER}) +if(CMAKE_FOLDER) + set(CMAKE_FOLDER "${CMAKE_FOLDER}/vmprofiler") +else() + set(CMAKE_FOLDER vmprofiler) +endif() +add_subdirectory(vmprofiler) +set(CMAKE_FOLDER ${CMKR_CMAKE_FOLDER}) + +# Target cli-parser +set(CMKR_TARGET cli-parser) +set(cli-parser_SOURCES "") + +set(CMKR_SOURCES ${cli-parser_SOURCES}) +add_library(cli-parser INTERFACE) + +if(cli-parser_SOURCES) + target_sources(cli-parser INTERFACE ${cli-parser_SOURCES}) +endif() + +target_include_directories(cli-parser INTERFACE + cli-parser +) + +unset(CMKR_TARGET) +unset(CMKR_SOURCES) + +# Target xtils +set(CMKR_TARGET xtils) +set(xtils_SOURCES "") + +set(CMKR_SOURCES ${xtils_SOURCES}) +add_library(xtils INTERFACE) + +if(xtils_SOURCES) + target_sources(xtils INTERFACE ${xtils_SOURCES}) +endif() + +target_include_directories(xtils INTERFACE + xtils +) + +unset(CMKR_TARGET) +unset(CMKR_SOURCES) + diff --git a/dependencies/cmake.toml b/dependencies/cmake.toml new file mode 100644 index 0000000..1bceb53 --- /dev/null +++ b/dependencies/cmake.toml @@ -0,0 +1,9 @@ +[subdir.vmprofiler] + +[target.cli-parser] +type = "interface" +include-directories = ["cli-parser"] + +[target.xtils] +type = "interface" +include-directories = ["xtils"] \ No newline at end of file diff --git a/dependencies/vmprofiler b/dependencies/vmprofiler index 0f6ba9b..14cc72c 160000 --- a/dependencies/vmprofiler +++ b/dependencies/vmprofiler @@ -1 +1 @@ -Subproject commit 0f6ba9bad30d67f25f01b6c1e872077efdff61d4 +Subproject commit 14cc72c0ff121d13f2ba26be34d1e99492aad296 diff --git a/dependencies/xtils b/dependencies/xtils index 7c32517..db7526d 160000 --- a/dependencies/xtils +++ b/dependencies/xtils @@ -1 +1 @@ -Subproject commit 7c32517322c29a866cbb1e67fb9051efa2e05553 +Subproject commit db7526d989bdfecb6fac2079929efce94cead52c diff --git a/include/compiler.hpp b/include/compiler.hpp new file mode 100644 index 0000000..3bef9e6 --- /dev/null +++ b/include/compiler.hpp @@ -0,0 +1,131 @@ +#pragma once +#include +#include +#include +#include +#include + +namespace vm { +/// +/// struct containing encoded data for a given virtual instruction... +/// +struct vinstr_data { + /// + /// vm handler index also known as the opcode... + /// + std::uint8_t vm_handler; + + /// + /// this field contains the second operand if any... + /// + std::uint64_t operand; + + /// + /// size in bits of the second operand if any... zero if none... + /// + std::uint8_t imm_size; +}; + +/// +/// struct containing all information for a label... +/// +struct vlabel_data { + /// + /// name of the label... + /// + std::string label_name; + + /// + /// vector of encoded virtual instructions... + /// + std::vector vinstrs; +}; + +/// +/// struct containing compiled virtual instructions (encoded and encrypted) for +/// a given label... +/// +struct compiled_label_data { + /// + /// label name... + /// + std::string label_name; + + /// + /// relative virtual address from vm_entry to the virtual instructions... + /// + std::uintptr_t alloc_rva; + + /// + /// encrypted relative virtual address from vm_entry to virtual + /// instructions... + /// + std::uintptr_t enc_alloc_rva; + + /// + /// vector of bytes containing the raw, encrypted virtual instructions... + /// + std::vector vinstrs; +}; + +/// +/// class containing member functions used to encode and encrypted virtual +/// instructions... +/// +class compiler_t { + public: + /// + /// default constructor + /// + /// pointer to a vm context object which has already been + /// init... + explicit compiler_t(vm::ctx_t* vmctx); + + /// + /// encode virtual instructions from parser::virt_labels + /// + /// returns a vector of labels containing encoded virtual + /// instructions + std::vector* encode(); + + /// + /// encrypt virtual instructions from parser::virt_labels + /// + /// returns a vector of compiled labels containing encoded and + /// encrypted virtual instructions... + std::vector encrypt(); + + private: + /// + /// encrypt virtual instructions rva... read more here... + /// + /// relative virtual address to encrypted virtual + /// instructions... + std::uint64_t encrypt_rva(std::uint64_t rva); + + /// + /// pointer to the vmctx passed in by the constructor... + /// + vm::ctx_t* vmctx; + + /// + /// transformations used to decrypt the opcode operand extracted from + /// calc_jmp... you can read more here... + /// + transform::map_t calc_jmp_transforms; + + /// + /// vector of encoded labels... + /// + std::vector virt_labels; + + /// + /// vector of decoded zydis instructions containing the native instructions to + /// encrypt the virtual instruction rva which will be pushed onto the stack + /// prior to jmping to vm entry... + /// + std::vector encrypt_vinstrs_rva; +}; +} // namespace vm \ No newline at end of file diff --git a/src/gen_code.hpp b/include/gen_code.hpp similarity index 64% rename from src/gen_code.hpp rename to include/gen_code.hpp index d483234..5f5a117 100644 --- a/src/gen_code.hpp +++ b/include/gen_code.hpp @@ -1,52 +1,55 @@ #pragma once +#include #include #include #include -#include "compiler.h" - -namespace gen -{ - /// - /// function pasted from https://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf - /// - /// - /// - /// - /// - template < typename... Args > std::string string_format( const std::string &format, Args... args ) - { - int size_s = std::snprintf( nullptr, 0, format.c_str(), args... ) + 1; - auto size = static_cast< size_t >( size_s ); - auto buf = std::make_unique< char[] >( size ); - std::snprintf( buf.get(), size, format.c_str(), args... ); - return std::string( buf.get(), buf.get() + size - 1 ); - } - - /// - /// generates c++ header file which MUST BE COMPILED USING CLANG BECAUSE MSVC CANT HANDLE HUGE STATIC INITS (6/13/2021).... - /// - /// vector of compiled labels... - /// path to the image on disk... - /// - /// - inline std::string code( std::vector< vm::compiled_label_data > &labels, std::string image_path, vm::ctx_t& vmctx ) - { - std::string result, raw_file_array; - std::vector< std::uint8_t > raw_file; - xtils::um_t::get_instance()->open_binary_file( image_path, raw_file ); - - for ( auto idx = 0u; idx < raw_file.size(); ++idx ) - raw_file_array.append( string_format( "0x%x, ", raw_file[ idx ] ) ); - - result.append( "#pragma once\n" - "#pragma section( \".xmp2\" )\n" - "#pragma comment( linker, \"/section:.xmp2,RWE\" ) \n\n" ); - - result.append( "namespace vm\n" - "{\n" ); - - result.append( R"( using u8 = unsigned char; +namespace gen { +/// +/// function pasted from +/// https://stackoverflow.com/questions/2342162/stdstring-formatting-like-sprintf +/// +/// +/// +/// +/// +template +std::string string_format(const std::string& format, Args... args) { + int size_s = std::snprintf(nullptr, 0, format.c_str(), args...) + 1; + auto size = static_cast(size_s); + auto buf = std::make_unique(size); + std::snprintf(buf.get(), size, format.c_str(), args...); + return std::string(buf.get(), buf.get() + size - 1); +} + +/// +/// generates c++ header file which MUST BE COMPILED USING CLANG BECAUSE MSVC +/// CANT HANDLE HUGE STATIC INITS (6/13/2021).... +/// +/// vector of compiled labels... +/// path to the image on disk... +/// +/// +inline std::string code(std::vector& labels, + std::string image_path, + vm::ctx_t& vmctx) { + std::string result, raw_file_array; + std::vector raw_file; + xtils::um_t::get_instance()->open_binary_file(image_path, raw_file); + + for (auto idx = 0u; idx < raw_file.size(); ++idx) + raw_file_array.append(string_format("0x%x, ", raw_file[idx])); + + result.append( + "#pragma once\n" + "#pragma section( \".xmp2\" )\n" + "#pragma comment( linker, \"/section:.xmp2,RWE\" ) \n\n"); + + result.append( + "namespace vm\n" + "{\n"); + + result.append(R"( using u8 = unsigned char; using s8 = signed char; using u16 = unsigned short; @@ -169,78 +172,84 @@ namespace gen { unsigned int VirtualAddress; unsigned int SizeOfBlock; - } IMAGE_BASE_RELOCATION, *PIMAGE_BASE_RELOCATION;)" ); - - result.append( "\n\n\ttemplate < class T, class U > struct _pair_t\n" - "\t{\n" - "\t\tT first;\n" - "\t\tU second;\n" - "\t};\n\n" ); - - result.append( string_format( "\tconstexpr auto entry_rva = 0x%x;\n\n", vmctx.vm_entry_rva ) ); - - result.append( "\tenum class calls : u32\n" - "\t{\n" ); - - for ( auto idx = 0u; idx < labels.size(); ++idx ) - result.append( string_format( "\t\t%s = 0x%x,\n", labels[ idx ].label_name, labels[ idx ].enc_alloc_rva ) ); - - result.append( "\t};\n\n" ); - result.append( string_format( "\tinline _pair_t< u8, calls > call_map[%d] = \n" - "\t{\n", - labels.size() ) ); - - for ( auto idx = 0u; idx < labels.size(); ++idx ) - result.append( string_format( "\t\t{ %d, calls::%s },\n", idx, labels[ idx ].label_name.c_str() ) ); - - result.append( "\t};\n\n" ); - result.append( string_format( "\t__declspec(align(1)) struct _gen_data\n" - "\t{\n" - "\t\tu8 bin[%d] =\n" - "\t\t{\n" - "\t\t\t%s\n", - raw_file.size(), raw_file_array.c_str() ) ); - - result.append( "\t\t};\n\n" ); - result.append( string_format( "\t\tu8 map_area[0x%x];\n\n", vmctx.image_size ) ); - - for ( auto &label : labels ) - { - result.append( - string_format( "\t\tu8 __%s_vinstrs[%d] =\n", label.label_name.c_str(), label.vinstrs.size() ) ); - result.append( "\t\t{\n\t\t\t" ); - for ( auto &byte : label.vinstrs ) - result.append( string_format( "0x%x, ", byte ) ); - result.append( "\n\t\t};\n\n" ); - } - - result.append( string_format( "\t\tu8 __vmcall_shell_code[%d][15] =\n" - "\t\t{\n", - labels.size() ) ); - - for ( auto idx = 0u; idx < labels.size(); ++idx ) - { - std::string jmp_code; - - // two push instructions... - for ( auto i = 0u; i < 2; ++i ) - { - jmp_code.append( "0x68, " ); // push opcode... - - for ( auto _idx = 0u; _idx < 4; ++_idx ) - jmp_code.append( "0x0, " ); - } + } IMAGE_BASE_RELOCATION, *PIMAGE_BASE_RELOCATION;)"); + + result.append( + "\n\n\ttemplate < class T, class U > struct _pair_t\n" + "\t{\n" + "\t\tT first;\n" + "\t\tU second;\n" + "\t};\n\n"); + + result.append(string_format("\tconstexpr auto entry_rva = 0x%x;\n\n", + vmctx.vm_entry_rva)); + + result.append( + "\tenum class calls : u32\n" + "\t{\n"); + + for (auto idx = 0u; idx < labels.size(); ++idx) + result.append(string_format("\t\t%s = 0x%x,\n", labels[idx].label_name, + labels[idx].enc_alloc_rva)); + + result.append("\t};\n\n"); + result.append( + string_format("\tinline _pair_t< u8, calls > call_map[%d] = \n" + "\t{\n", + labels.size())); + + for (auto idx = 0u; idx < labels.size(); ++idx) + result.append(string_format("\t\t{ %d, calls::%s },\n", idx, + labels[idx].label_name.c_str())); + + result.append("\t};\n\n"); + result.append( + string_format("\t__declspec(align(1)) struct _gen_data\n" + "\t{\n" + "\t\tu8 bin[%d] =\n" + "\t\t{\n" + "\t\t\t%s\n", + raw_file.size(), raw_file_array.c_str())); + + result.append("\t\t};\n\n"); + result.append(string_format("\t\tu8 map_area[0x%x];\n\n", vmctx.image_size)); + + for (auto& label : labels) { + result.append(string_format("\t\tu8 __%s_vinstrs[%d] =\n", + label.label_name.c_str(), + label.vinstrs.size())); + result.append("\t\t{\n\t\t\t"); + for (auto& byte : label.vinstrs) + result.append(string_format("0x%x, ", byte)); + result.append("\n\t\t};\n\n"); + } + + result.append( + string_format("\t\tu8 __vmcall_shell_code[%d][15] =\n" + "\t\t{\n", + labels.size())); + + for (auto idx = 0u; idx < labels.size(); ++idx) { + std::string jmp_code; + + // two push instructions... + for (auto i = 0u; i < 2; ++i) { + jmp_code.append("0x68, "); // push opcode... + + for (auto _idx = 0u; _idx < 4; ++_idx) + jmp_code.append("0x0, "); + } - // one jmp instruction... - jmp_code.append( "0xE9, " ); - for ( auto i = 0u; i < 4; ++i ) - jmp_code.append( "0x0, " ); + // one jmp instruction... + jmp_code.append("0xE9, "); + for (auto i = 0u; i < 4; ++i) + jmp_code.append("0x0, "); - result.append( string_format( "\t\t\t{ %s },\n", jmp_code.c_str() ) ); - } + result.append(string_format("\t\t\t{ %s },\n", jmp_code.c_str())); + } - result.append( "\t\t};\n\n" ); - result.append( R"( bool init() + result.append("\t\t};\n\n"); + result.append(R"( bool init() { static const auto _memcpy = []( void *dest, const void *src, size_t len ) -> void * { char *d = ( char * )dest; @@ -324,12 +333,14 @@ namespace gen } return true; // only a bool so i can use static/call init only once... - })" ); + })"); - result.append( "\n\t};\n\n" ); - result.append( "\t__declspec(allocate(\".xmp2\")) inline _gen_data gen_data;\n\n" ); + result.append("\n\t};\n\n"); + result.append( + "\t__declspec(allocate(\".xmp2\")) inline _gen_data gen_data;\n\n"); - result.append( R"( template < calls e_call, class T, class ... Ts > auto call(const Ts... args) -> T + result.append( + R"( template < calls e_call, class T, class ... Ts > auto call(const Ts... args) -> T { static auto __init_result = gen_data.init(); @@ -339,9 +350,9 @@ namespace gen vmcall = reinterpret_cast< __vmcall_t >( &gen_data.__vmcall_shell_code[ idx ] ); return reinterpret_cast< T >( vmcall( args... ) ); - })" ); + })"); - result.append( "\n}" ); - return result; - } -} // namespace gen \ No newline at end of file + result.append("\n}"); + return result; +} +} // namespace gen \ No newline at end of file diff --git a/src/parser.h b/include/parser.hpp similarity index 100% rename from src/parser.h rename to include/parser.hpp diff --git a/src/compiler.cpp b/src/compiler.cpp index 799f6ab..9407cf5 100644 --- a/src/compiler.cpp +++ b/src/compiler.cpp @@ -1,194 +1,211 @@ -#include "compiler.h" - -namespace vm -{ - compiler_t::compiler_t( vm::ctx_t *vmctx ) : vmctx( vmctx ) - { - if ( !parse_t::get_instance()->for_each( [ & ]( _vlabel_meta *label_data ) -> bool { - std::printf( "> checking label %s for invalid instructions... number of instructions = %d\n", - label_data->label_name.c_str(), label_data->vinstrs.size() ); - - const auto result = std::find_if( - label_data->vinstrs.begin(), label_data->vinstrs.end(), - [ & ]( const _vinstr_meta &vinstr ) -> bool { - std::printf( "> vinstr name = %s, has imm = %d, imm = 0x%p\n", vinstr.name.c_str(), - vinstr.has_imm, vinstr.imm ); - - for ( auto &vm_handler : vmctx->vm_handlers ) - if ( vm_handler.profile && vm_handler.profile->name == vinstr.name ) - return false; - - std::printf( "[!] this vm protected file does not have the vm handler for: %s...\n", - vinstr.name.c_str() ); - - return true; - } ); - - return result == label_data->vinstrs.end(); - } ) ) - { - std::printf( "[!] binary does not have the required vm handlers...\n" ); - exit( -1 ); - } - - if ( !vm::handler::get_operand_transforms( vmctx->calc_jmp, calc_jmp_transforms ) ) - { - std::printf( "[!] failed to extract calc_jmp transformations...\n" ); - exit( -1 ); - } - - if ( !vm::instrs::get_rva_decrypt( vmctx->vm_entry, encrypt_vinstrs_rva ) ) - { - std::printf( "[!] failed to extract virtual instruction rva decryption instructions...\n" ); - exit( -1 ); - } - - if ( !vm::transform::inverse_transforms( encrypt_vinstrs_rva ) ) - { - std::printf( "[!] failed to inverse virtual instruction rva decrypt instructions...\n" ); - exit( -1 ); +#include + +namespace vm { +compiler_t::compiler_t(vm::ctx_t* vmctx) : vmctx(vmctx) { + if (!parse_t::get_instance()->for_each([&](_vlabel_meta* label_data) -> bool { + std::printf( + "> checking label %s for invalid instructions... number of " + "instructions = %d\n", + label_data->label_name.c_str(), label_data->vinstrs.size()); + + const auto result = std::find_if( + label_data->vinstrs.begin(), label_data->vinstrs.end(), + [&](const _vinstr_meta& vinstr) -> bool { + std::printf("> vinstr name = %s, has imm = %d, imm = 0x%p\n", + vinstr.name.c_str(), vinstr.has_imm, vinstr.imm); + + for (auto& vm_handler : vmctx->vm_handlers) + if (vm_handler.profile && + vm_handler.profile->name == vinstr.name) + return false; + + std::printf( + "[!] this vm protected file does not have the vm handler " + "for: %s...\n", + vinstr.name.c_str()); + + return true; + }); + + return result == label_data->vinstrs.end(); + })) { + std::printf("[!] binary does not have the required vm handlers...\n"); + exit(-1); + } + + if (!vm::handler::get_operand_transforms(vmctx->calc_jmp, + calc_jmp_transforms)) { + std::printf("[!] failed to extract calc_jmp transformations...\n"); + exit(-1); + } + + if (!vm::instrs::get_rva_decrypt(vmctx->vm_entry, encrypt_vinstrs_rva)) { + std::printf( + "[!] failed to extract virtual instruction rva decryption " + "instructions...\n"); + exit(-1); + } + + if (!vm::transform::inverse_transforms(encrypt_vinstrs_rva)) { + std::printf( + "[!] failed to inverse virtual instruction rva decrypt " + "instructions...\n"); + exit(-1); + } +} + +std::vector* compiler_t::encode() { + parse_t::get_instance()->for_each([&](_vlabel_meta* label_data) -> bool { + virt_labels.push_back({label_data->label_name}); + for (const auto& vinstr : label_data->vinstrs) { + for (auto idx = 0u; idx < 256; ++idx) { + const auto& vm_handler = vmctx->vm_handlers[idx]; + if (vm_handler.profile && + !vinstr.name.compare(vm_handler.profile->name)) { + virt_labels.back().vinstrs.push_back( + {(std::uint8_t)idx, vinstr.imm, vm_handler.profile->imm_size}); + break; } + } } - - std::vector< vlabel_data > *compiler_t::encode() - { - parse_t::get_instance()->for_each( [ & ]( _vlabel_meta *label_data ) -> bool { - virt_labels.push_back( { label_data->label_name } ); - for ( const auto &vinstr : label_data->vinstrs ) - { - for ( auto idx = 0u; idx < 256; ++idx ) + return true; + }); + + return &virt_labels; +} + +std::vector compiler_t::encrypt() { + std::vector result; + const auto end_of_module = vmctx->image_size + vmctx->image_base; + + // decryption key starts off as the image + // base address of the virtual instructions... + std::uintptr_t decrypt_key = end_of_module, start_addr; + if (vmctx->exec_type == vmp2::exec_type_t::backward) + std::for_each( + virt_labels.begin()->vinstrs.begin(), + virt_labels.begin()->vinstrs.end(), [&](const vinstr_data& vinstr) { + (++decrypt_key) += vinstr.imm_size ? vinstr.imm_size / 8 : 0; + }); + + const auto opcode_fetch = std::find_if( + vmctx->calc_jmp.begin(), vmctx->calc_jmp.end(), + [](const zydis_instr_t& instr_data) -> bool { + // mov/movsx/movzx rax/eax/ax/al, [rsi] + return instr_data.instr.operand_count > 1 && + (instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOV || + instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOVSX || + instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOVZX) && + instr_data.instr.operands[0].type == + ZYDIS_OPERAND_TYPE_REGISTER && + util::reg::to64(instr_data.instr.operands[0].reg.value) == + ZYDIS_REGISTER_RAX && + instr_data.instr.operands[1].type == ZYDIS_OPERAND_TYPE_MEMORY && + instr_data.instr.operands[1].mem.base == ZYDIS_REGISTER_RSI; + }); + + if (opcode_fetch == vmctx->calc_jmp.end()) { + std::printf( + "> critical error trying to find opcode fetch inside of " + "compiler_t::encrypt...\n"); + exit(0); + } + + start_addr = decrypt_key - 1; // make it zero based... + std::for_each( + virt_labels.begin(), virt_labels.end(), [&](vm::vlabel_data& label) { + // sometimes there is a mov al, [rsi-1]... we want that disp... + if (opcode_fetch->instr.operands[1].mem.disp.has_displacement) + start_addr += + std::abs(opcode_fetch->instr.operands[1].mem.disp.value); + + decrypt_key = start_addr; + result.push_back({label.label_name, start_addr}); + + if (vmctx->exec_type == vmp2::exec_type_t::forward) { + std::for_each( + label.vinstrs.begin(), label.vinstrs.end(), + [&](vm::vinstr_data& vinstr) { + std::uint8_t opcode = vinstr.vm_handler; + std::uint64_t operand = 0u; + + // encrypt opcode... + std::tie(opcode, decrypt_key) = vm::instrs::encrypt_operand( + calc_jmp_transforms, vinstr.vm_handler, decrypt_key); + + // if there is an operand then we will encrypt that as well.. + if (vmctx->vm_handlers[vinstr.vm_handler].imm_size) { + auto& vm_handler_transforms = + vmctx->vm_handlers[vinstr.vm_handler].transforms; + std::tie(operand, decrypt_key) = vm::instrs::encrypt_operand( + vm_handler_transforms, vinstr.operand, decrypt_key); + } else // else just push back the opcode... { - const auto &vm_handler = vmctx->vm_handlers[ idx ]; - if ( vm_handler.profile && !vinstr.name.compare( vm_handler.profile->name ) ) - { - virt_labels.back().vinstrs.push_back( - { ( std::uint8_t )idx, vinstr.imm, vm_handler.profile->imm_size } ); - break; - } + result.back().vinstrs.push_back(opcode); + return; // finished here... } - } - return true; - } ); - return &virt_labels; - } + result.back().vinstrs.push_back(opcode); + for (auto idx = 0u; + idx < vmctx->vm_handlers[vinstr.vm_handler].imm_size / 8; + ++idx) + result.back().vinstrs.push_back( + reinterpret_cast(&vinstr.operand)[idx]); + }); + } else { + std::for_each( + label.vinstrs.begin(), label.vinstrs.end(), + [&](vm::vinstr_data& vinstr) { + std::uint8_t opcode = vinstr.vm_handler; + std::uint64_t operand = 0u; + + // encrypt opcode... + std::tie(opcode, decrypt_key) = vm::instrs::encrypt_operand( + calc_jmp_transforms, vinstr.vm_handler, decrypt_key); + + // if there is an operand then we will encrypt that as well.. + if (vmctx->vm_handlers[vinstr.vm_handler].imm_size) { + auto& vm_handler_transforms = + vmctx->vm_handlers[vinstr.vm_handler].transforms; + std::tie(operand, decrypt_key) = vm::instrs::encrypt_operand( + vm_handler_transforms, vinstr.operand, decrypt_key); + } else // else just push back the opcode... + { + result.back().vinstrs.insert(result.back().vinstrs.begin(), 1, + opcode); + return; // finished here... + } - std::vector< compiled_label_data > compiler_t::encrypt() - { - std::vector< compiled_label_data > result; - const auto end_of_module = vmctx->image_size + vmctx->image_base; - - // decryption key starts off as the image - // base address of the virtual instructions... - std::uintptr_t decrypt_key = end_of_module, start_addr; - if ( vmctx->exec_type == vmp2::exec_type_t::backward ) - std::for_each( virt_labels.begin()->vinstrs.begin(), virt_labels.begin()->vinstrs.end(), - [ & ]( const vinstr_data &vinstr ) { - ( ++decrypt_key ) += vinstr.imm_size ? vinstr.imm_size / 8 : 0; - } ); - - const auto opcode_fetch = std::find_if( - vmctx->calc_jmp.begin(), vmctx->calc_jmp.end(), []( const zydis_instr_t &instr_data ) -> bool { - // mov/movsx/movzx rax/eax/ax/al, [rsi] - return instr_data.instr.operand_count > 1 && - ( instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOV || - instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOVSX || - instr_data.instr.mnemonic == ZYDIS_MNEMONIC_MOVZX ) && - instr_data.instr.operands[ 0 ].type == ZYDIS_OPERAND_TYPE_REGISTER && - util::reg::to64( instr_data.instr.operands[ 0 ].reg.value ) == ZYDIS_REGISTER_RAX && - instr_data.instr.operands[ 1 ].type == ZYDIS_OPERAND_TYPE_MEMORY && - instr_data.instr.operands[ 1 ].mem.base == ZYDIS_REGISTER_RSI; - } ); - - if ( opcode_fetch == vmctx->calc_jmp.end() ) - { - std::printf( "> critical error trying to find opcode fetch inside of compiler_t::encrypt...\n" ); - exit( 0 ); + // operand goes first, then opcode when vip advances + // backwards... + std::vector _temp; + for (auto idx = 0u; + idx < vmctx->vm_handlers[vinstr.vm_handler].imm_size / 8; + ++idx) + _temp.push_back( + reinterpret_cast(&operand)[idx]); + + result.back().vinstrs.insert(result.back().vinstrs.begin(), + _temp.begin(), _temp.end()); + result.back().vinstrs.insert( + result.back().vinstrs.begin() + _temp.size(), opcode); + }); } - start_addr = decrypt_key - 1; // make it zero based... - std::for_each( virt_labels.begin(), virt_labels.end(), [ & ]( vm::vlabel_data &label ) { - // sometimes there is a mov al, [rsi-1]... we want that disp... - if ( opcode_fetch->instr.operands[ 1 ].mem.disp.has_displacement ) - start_addr += std::abs( opcode_fetch->instr.operands[ 1 ].mem.disp.value ); - - decrypt_key = start_addr; - result.push_back( { label.label_name, start_addr } ); - - if ( vmctx->exec_type == vmp2::exec_type_t::forward ) - { - std::for_each( label.vinstrs.begin(), label.vinstrs.end(), [ & ]( vm::vinstr_data &vinstr ) { - std::uint8_t opcode = vinstr.vm_handler; - std::uint64_t operand = 0u; - - // encrypt opcode... - std::tie( opcode, decrypt_key ) = - vm::instrs::encrypt_operand( calc_jmp_transforms, vinstr.vm_handler, decrypt_key ); - - // if there is an operand then we will encrypt that as well.. - if ( vmctx->vm_handlers[ vinstr.vm_handler ].imm_size ) - { - auto &vm_handler_transforms = vmctx->vm_handlers[ vinstr.vm_handler ].transforms; - std::tie( operand, decrypt_key ) = - vm::instrs::encrypt_operand( vm_handler_transforms, vinstr.operand, decrypt_key ); - } - else // else just push back the opcode... - { - result.back().vinstrs.push_back( opcode ); - return; // finished here... - } - - result.back().vinstrs.push_back( opcode ); - for ( auto idx = 0u; idx < vmctx->vm_handlers[ vinstr.vm_handler ].imm_size / 8; ++idx ) - result.back().vinstrs.push_back( reinterpret_cast< std::uint8_t * >( &vinstr.operand )[ idx ] ); - } ); - } - else - { - std::for_each( label.vinstrs.begin(), label.vinstrs.end(), [ & ]( vm::vinstr_data &vinstr ) { - std::uint8_t opcode = vinstr.vm_handler; - std::uint64_t operand = 0u; - - // encrypt opcode... - std::tie( opcode, decrypt_key ) = - vm::instrs::encrypt_operand( calc_jmp_transforms, vinstr.vm_handler, decrypt_key ); - - // if there is an operand then we will encrypt that as well.. - if ( vmctx->vm_handlers[ vinstr.vm_handler ].imm_size ) - { - auto &vm_handler_transforms = vmctx->vm_handlers[ vinstr.vm_handler ].transforms; - std::tie( operand, decrypt_key ) = - vm::instrs::encrypt_operand( vm_handler_transforms, vinstr.operand, decrypt_key ); - } - else // else just push back the opcode... - { - result.back().vinstrs.insert( result.back().vinstrs.begin(), 1, opcode ); - return; // finished here... - } - - // operand goes first, then opcode when vip advances backwards... - std::vector< std::uint8_t > _temp; - for ( auto idx = 0u; idx < vmctx->vm_handlers[ vinstr.vm_handler ].imm_size / 8; ++idx ) - _temp.push_back( reinterpret_cast< std::uint8_t * >( &operand )[ idx ] ); - - result.back().vinstrs.insert( result.back().vinstrs.begin(), _temp.begin(), _temp.end() ); - result.back().vinstrs.insert( result.back().vinstrs.begin() + _temp.size(), opcode ); - } ); - } - - result.back().enc_alloc_rva = encrypt_rva( start_addr ); - start_addr += result.back().vinstrs.size() - 1; // make it zero based... - } ); - - return result; - } + result.back().enc_alloc_rva = encrypt_rva(start_addr); + start_addr += + result.back().vinstrs.size() - 1; // make it zero based... + }); - std::uint64_t compiler_t::encrypt_rva( std::uint64_t rva ) - { - for ( auto &instr : encrypt_vinstrs_rva ) - rva = vm::transform::apply( instr.operands[ 0 ].size, instr.mnemonic, rva, - transform::has_imm( &instr ) ? instr.operands[ 1 ].imm.value.u : 0 ); + return result; +} - return rva; - } -} // namespace vm \ No newline at end of file +std::uint64_t compiler_t::encrypt_rva(std::uint64_t rva) { + for (auto& instr : encrypt_vinstrs_rva) + rva = vm::transform::apply( + instr.operands[0].size, instr.mnemonic, rva, + transform::has_imm(&instr) ? instr.operands[1].imm.value.u : 0); + + return rva; +} +} // namespace vm \ No newline at end of file diff --git a/src/compiler.h b/src/compiler.h deleted file mode 100644 index 96867a4..0000000 --- a/src/compiler.h +++ /dev/null @@ -1,130 +0,0 @@ -#pragma once -#include -#include -#include -#include - -#include "parser.h" - -namespace vm -{ - /// - /// struct containing encoded data for a given virtual instruction... - /// - struct vinstr_data - { - /// - /// vm handler index also known as the opcode... - /// - std::uint8_t vm_handler; - - /// - /// this field contains the second operand if any... - /// - std::uint64_t operand; - - /// - /// size in bits of the second operand if any... zero if none... - /// - std::uint8_t imm_size; - }; - - /// - /// struct containing all information for a label... - /// - struct vlabel_data - { - /// - /// name of the label... - /// - std::string label_name; - - /// - /// vector of encoded virtual instructions... - /// - std::vector< vinstr_data > vinstrs; - }; - - /// - /// struct containing compiled virtual instructions (encoded and encrypted) for a given label... - /// - struct compiled_label_data - { - /// - /// label name... - /// - std::string label_name; - - /// - /// relative virtual address from vm_entry to the virtual instructions... - /// - std::uintptr_t alloc_rva; - - /// - /// encrypted relative virtual address from vm_entry to virtual instructions... - /// - std::uintptr_t enc_alloc_rva; - - /// - /// vector of bytes containing the raw, encrypted virtual instructions... - /// - std::vector< std::uint8_t > vinstrs; - }; - - /// - /// class containing member functions used to encode and encrypted virtual instructions... - /// - class compiler_t - { - public: - /// - /// default constructor - /// - /// pointer to a vm context object which has already been init... - explicit compiler_t( vm::ctx_t *vmctx ); - - /// - /// encode virtual instructions from parser::virt_labels - /// - /// returns a vector of labels containing encoded virtual instructions - std::vector< vlabel_data > *encode(); - - /// - /// encrypt virtual instructions from parser::virt_labels - /// - /// returns a vector of compiled labels containing encoded and encrypted virtual - /// instructions... - std::vector< compiled_label_data > encrypt(); - - private: - /// - /// encrypt virtual instructions rva... read more - /// here... - /// - /// relative virtual address to encrypted virtual instructions... - /// - std::uint64_t encrypt_rva( std::uint64_t rva ); - - /// - /// pointer to the vmctx passed in by the constructor... - /// - vm::ctx_t *vmctx; - - /// - /// transformations used to decrypt the opcode operand extracted from calc_jmp... - /// you can read more here... - /// - transform::map_t calc_jmp_transforms; - - /// - /// vector of encoded labels... - /// - std::vector< vlabel_data > virt_labels; - - /// - /// vector of decoded zydis instructions containing the native instructions to encrypt the virtual instruction - /// rva which will be pushed onto the stack prior to jmping to vm entry... - /// - std::vector< zydis_decoded_instr_t > encrypt_vinstrs_rva; - }; -} // namespace vm \ No newline at end of file diff --git a/src/main.cpp b/src/main.cpp index cf8731d..df18dbc 100644 --- a/src/main.cpp +++ b/src/main.cpp @@ -6,138 +6,143 @@ #include #include -#include "compiler.h" -#include "parser.h" -#include "parser.tab.h" -#include "vmprofiler.hpp" -#include "gen_code.hpp" - -extern FILE *yyin; -extern "C" int yywrap() -{ - return 1; +#include +#include +#include +#include +#include + +extern FILE* yyin; +extern "C" int yywrap() { + return 1; } -void yyerror( char *msg ) -{ - std::printf( "[!] parsing failure: %s\n", msg ); +void yyerror(char* msg) { + std::printf("[!] parsing failure: %s\n", msg); } -int __cdecl main( int argc, const char *argv[] ) -{ - argparse::argument_parser_t argp( "vmassembler", "virtual instruction assembler" ); - - argp.add_argument() - .names( { "--input", "--in" } ) - .description( "path to a vasm file to be assembled..." ) - .required( true ); - - argp.add_argument().names( { "--vmpbin", "--bin" } ).description( "path to protected binary..." ).required( true ); - argp.add_argument().names( { "--vmentry", "--entry" } ).description( "rva to vm entry..." ).required( true ); - argp.add_argument().names( { "--out", "--output" } ).description( "output file name and path..." ).required( true ); - - argp.enable_help(); - auto err = argp.parse( argc, argv ); - - if ( err ) - { - std::cout << err << std::endl; - return -1; - } - - if ( argp.exists( "help" ) ) - { - argp.print_help(); - return 0; +int __cdecl main(int argc, const char* argv[]) { + argparse::argument_parser_t argp("vmassembler", + "virtual instruction assembler"); + + argp.add_argument() + .names({"--input", "--in"}) + .description("path to a vasm file to be assembled...") + .required(true); + + argp.add_argument() + .names({"--vmpbin", "--bin"}) + .description("path to protected binary...") + .required(true); + argp.add_argument() + .names({"--vmentry", "--entry"}) + .description("rva to vm entry...") + .required(true); + argp.add_argument() + .names({"--out", "--output"}) + .description("output file name and path...") + .required(true); + + argp.enable_help(); + auto err = argp.parse(argc, argv); + + if (err) { + std::cout << err << std::endl; + return -1; + } + + if (argp.exists("help")) { + argp.print_help(); + return 0; + } + + // + // set yyin to the vasm file... + // + + if ((yyin = fopen(argp.get("input").c_str(), "r")) == nullptr) { + std::printf("[!] failed to open vasm file...\n"); + return -1; + } + + // + // parse vasm file for all of the instructions... + // + + yyparse(); + std::printf("[+] finished parsing vasm file...\n"); + + // + // init vm variables... + // + + const auto module_base = reinterpret_cast( + LoadLibraryExA(argp.get("vmpbin").c_str(), NULL, + DONT_RESOLVE_DLL_REFERENCES)); + + const auto vm_entry_rva = + std::strtoull(argp.get("vmentry").c_str(), nullptr, 16); + const auto image_base = xtils::um_t::get_instance()->image_base( + argp.get("vmpbin").c_str()); + const auto image_size = NT_HEADER(module_base)->OptionalHeader.SizeOfImage; + vm::ctx_t vmctx(module_base, image_base, image_size, vm_entry_rva); + + if (!vmctx.init()) { + std::printf( + "> failed to init vmctx... make sure all arguments are valid\n" + "and that the binary you are providing is unpacked and protected\n" + "by VMProtect 2...\n"); + return -1; + } + + std::printf("> flattened and deobfuscated vm entry...\n"); + vm::util::print(vmctx.vm_entry); + std::printf("> extracted calc jmp from vm entry...\n"); + vm::util::print(vmctx.calc_jmp); + + vm::compiler_t compiler(&vmctx); + + // + // encode virtual instructions... + // + + auto virt_labels = compiler.encode(); + std::printf("[+] finished encoding... encoded instructions below...\n"); + + for (auto& label : *virt_labels) { + for (const auto& vinstr : label.vinstrs) { + if (vinstr.imm_size) + std::printf("> 0x%x - 0x%x\n", vinstr.vm_handler, vinstr.operand); + else + std::printf("> 0x%x\n", vinstr.vm_handler); } + } - // - // set yyin to the vasm file... - // - - if ( ( yyin = fopen( argp.get< std::string >( "input" ).c_str(), "r" ) ) == nullptr ) - { - std::printf( "[!] failed to open vasm file...\n" ); - return -1; - } - - // - // parse vasm file for all of the instructions... - // - - yyparse(); - std::printf( "[+] finished parsing vasm file...\n" ); - - // - // init vm variables... - // + // + // encrypt virtual instructions... + // - const auto module_base = reinterpret_cast< std::uintptr_t >( - LoadLibraryExA( argp.get< std::string >( "vmpbin" ).c_str(), NULL, DONT_RESOLVE_DLL_REFERENCES ) ); + auto compiled_labels = compiler.encrypt(); + std::printf("[+] finished encrypting... encrypted labels below...\n"); - const auto vm_entry_rva = std::strtoull( argp.get< std::string >( "vmentry" ).c_str(), nullptr, 16 ); - const auto image_base = xtils::um_t::get_instance()->image_base( argp.get< std::string >( "vmpbin" ).c_str() ); - const auto image_size = NT_HEADER( module_base )->OptionalHeader.SizeOfImage; - vm::ctx_t vmctx( module_base, image_base, image_size, vm_entry_rva ); + for (const auto& label : compiled_labels) { + std::printf("> %s must be allocated at = 0x%p, encrypted rva = 0x%p\n", + label.label_name.c_str(), label.alloc_rva, label.enc_alloc_rva); - if ( !vmctx.init() ) + std::printf("> "); { - std::printf( "> failed to init vmctx... make sure all arguments are valid\n" - "and that the binary you are providing is unpacked and protected\n" - "by VMProtect 2...\n" ); - return -1; - } - - std::printf( "> flattened and deobfuscated vm entry...\n" ); - vm::util::print( vmctx.vm_entry ); - std::printf( "> extracted calc jmp from vm entry...\n" ); - vm::util::print( vmctx.calc_jmp ); - - vm::compiler_t compiler( &vmctx ); - - // - // encode virtual instructions... - // - - auto virt_labels = compiler.encode(); - std::printf( "[+] finished encoding... encoded instructions below...\n" ); - - for ( auto &label : *virt_labels ) - { - for ( const auto &vinstr : label.vinstrs ) - { - if ( vinstr.imm_size ) - std::printf( "> 0x%x - 0x%x\n", vinstr.vm_handler, vinstr.operand ); - else - std::printf( "> 0x%x\n", vinstr.vm_handler ); - } - } - - // - // encrypt virtual instructions... - // - - auto compiled_labels = compiler.encrypt(); - std::printf( "[+] finished encrypting... encrypted labels below...\n" ); - - for ( const auto &label : compiled_labels ) - { - std::printf( "> %s must be allocated at = 0x%p, encrypted rva = 0x%p\n", label.label_name.c_str(), - label.alloc_rva, label.enc_alloc_rva ); - - std::printf( "> " ); - { - for ( auto byte : label.vinstrs ) - std::printf( "0x%x ", byte ); + for (auto byte : label.vinstrs) + std::printf("0x%x ", byte); - std::printf( "\n" ); - } + std::printf("\n"); } + } - const auto cpp_result = gen::code( compiled_labels, argp.get< std::string >( "vmpbin" ), vmctx ); - std::ofstream output( argp.get< std::string >( "out" ) ); - output.write( cpp_result.data(), cpp_result.size() ); - output.close(); + const auto cpp_result = + gen::code(compiled_labels, argp.get("vmpbin"), vmctx); + std::ofstream output(argp.get("out")); + output.write(cpp_result.data(), cpp_result.size()); + output.close(); - std::printf( "> generated header file...\n" ); + std::printf("> generated header file...\n"); } \ No newline at end of file diff --git a/src/parser.cpp b/src/parser.cpp index 78747ec..8e1e41e 100644 --- a/src/parser.cpp +++ b/src/parser.cpp @@ -1,37 +1,30 @@ -#include "parser.h" +#include -parse_t::parse_t() -{ -} +parse_t::parse_t() {} -auto parse_t::get_instance() -> parse_t * -{ - static parse_t obj; - return &obj; +auto parse_t::get_instance() -> parse_t* { + static parse_t obj; + return &obj; } -void parse_t::add_label( std::string label_name ) -{ - // remove ":" from the end of the label name... - label_name.erase( label_name.end() - 1 ); - virt_labels.push_back( { label_name } ); +void parse_t::add_label(std::string label_name) { + // remove ":" from the end of the label name... + label_name.erase(label_name.end() - 1); + virt_labels.push_back({label_name}); } -void parse_t::add_vinstr( std::string vinstr_name ) -{ - virt_labels.back().vinstrs.push_back( { vinstr_name, false, 0u } ); +void parse_t::add_vinstr(std::string vinstr_name) { + virt_labels.back().vinstrs.push_back({vinstr_name, false, 0u}); } -void parse_t::add_vinstr( std::string vinstr_name, std::uintptr_t imm_val ) -{ - virt_labels.back().vinstrs.push_back( { vinstr_name, true, imm_val } ); +void parse_t::add_vinstr(std::string vinstr_name, std::uintptr_t imm_val) { + virt_labels.back().vinstrs.push_back({vinstr_name, true, imm_val}); } -bool parse_t::for_each( callback_t callback ) -{ - for ( auto &entry : virt_labels ) - if ( !callback( &entry ) ) - return false; +bool parse_t::for_each(callback_t callback) { + for (auto& entry : virt_labels) + if (!callback(&entry)) + return false; - return true; + return true; } \ No newline at end of file diff --git a/vmassembler.sln b/vmassembler.sln deleted file mode 100644 index 23f78af..0000000 --- a/vmassembler.sln +++ /dev/null @@ -1,266 +0,0 @@ - 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const auto hello = vm::call< vm::calls::get_hello, vm::u64 >(); + const auto hello = vm::call< vm::calls::get_hello, vm::u64 >(); const auto world = vm::call< vm::calls::get_world, vm::u64 >(); - std::printf( "> %s %s\n", ( char * )&hello, (char*)&world ); + std::printf( "> %s %s\n", ( char * )&hello, (char*)&world ); } \ No newline at end of file diff --git a/dependencies/vmprofiler b/dependencies/vmprofiler index 14cc72c..52d185f 160000 --- a/dependencies/vmprofiler +++ b/dependencies/vmprofiler @@ -1 +1 @@ -Subproject commit 14cc72c0ff121d13f2ba26be34d1e99492aad296 +Subproject commit 52d185f8c70352ced670481e57f896143d3d8527 diff --git a/src/lexer.flex.cpp b/src/lexer.flex.cpp new file mode 100644 index 0000000..b717bad --- /dev/null +++ b/src/lexer.flex.cpp @@ -0,0 +1,1763 @@ +#line 1 "lexer.flex.cpp" + +#line 3 "lexer.flex.cpp" + +#define YY_INT_ALIGNED short int + +/* A lexical scanner generated by flex */ + +#define FLEX_SCANNER +#define YY_FLEX_MAJOR_VERSION 2 +#define YY_FLEX_MINOR_VERSION 6 +#define YY_FLEX_SUBMINOR_VERSION 4 +#if YY_FLEX_SUBMINOR_VERSION > 0 +#define FLEX_BETA +#endif + +/* First, we deal with platform-specific or compiler-specific issues. */ + +/* begin standard C headers. */ +#include +#include +#include +#include + +/* end standard C headers. */ + +/* flex integer type definitions */ + +#ifndef FLEXINT_H +#define FLEXINT_H + +/* C99 systems have . Non-C99 systems may or may not. */ + +#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L + +/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h, + * if you want the limit (max/min) macros for int types. + */ +#ifndef __STDC_LIMIT_MACROS +#define __STDC_LIMIT_MACROS 1 +#endif + +#include +typedef int8_t flex_int8_t; +typedef uint8_t flex_uint8_t; +typedef int16_t flex_int16_t; +typedef uint16_t flex_uint16_t; +typedef int32_t flex_int32_t; +typedef uint32_t flex_uint32_t; +#else +typedef signed char flex_int8_t; +typedef short int flex_int16_t; +typedef int flex_int32_t; +typedef unsigned char flex_uint8_t; +typedef unsigned short int flex_uint16_t; +typedef unsigned int flex_uint32_t; + +/* Limits of integral types. */ +#ifndef INT8_MIN +#define INT8_MIN (-128) +#endif +#ifndef INT16_MIN +#define INT16_MIN (-32767-1) +#endif +#ifndef INT32_MIN +#define INT32_MIN (-2147483647-1) +#endif +#ifndef INT8_MAX +#define INT8_MAX (127) +#endif +#ifndef INT16_MAX +#define INT16_MAX (32767) +#endif +#ifndef INT32_MAX +#define INT32_MAX (2147483647) +#endif +#ifndef UINT8_MAX +#define UINT8_MAX (255U) +#endif +#ifndef UINT16_MAX +#define UINT16_MAX (65535U) +#endif +#ifndef UINT32_MAX +#define UINT32_MAX (4294967295U) +#endif + +#ifndef SIZE_MAX +#define SIZE_MAX (~(size_t)0) +#endif + +#endif /* ! C99 */ + +#endif /* ! FLEXINT_H */ + +/* begin standard C++ headers. */ + +/* TODO: this is always defined, so inline it */ +#define yyconst const + +#if defined(__GNUC__) && __GNUC__ >= 3 +#define yynoreturn __attribute__((__noreturn__)) +#else +#define yynoreturn +#endif + +/* Returned upon end-of-file. */ +#define YY_NULL 0 + +/* Promotes a possibly negative, possibly signed char to an + * integer in range [0..255] for use as an array index. + */ +#define YY_SC_TO_UI(c) ((YY_CHAR) (c)) + +/* Enter a start condition. This macro really ought to take a parameter, + * but we do it the disgusting crufty way forced on us by the ()-less + * definition of BEGIN. + */ +#define BEGIN (yy_start) = 1 + 2 * +/* Translate the current start state into a value that can be later handed + * to BEGIN to return to the state. The YYSTATE alias is for lex + * compatibility. + */ +#define YY_START (((yy_start) - 1) / 2) +#define YYSTATE YY_START +/* Action number for EOF rule of a given start state. */ +#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1) +/* Special action meaning "start processing a new file". */ +#define YY_NEW_FILE yyrestart( yyin ) +#define YY_END_OF_BUFFER_CHAR 0 + +/* Size of default input buffer. */ +#ifndef YY_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k. + * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case. + * Ditto for the __ia64__ case accordingly. + */ +#define YY_BUF_SIZE 32768 +#else +#define YY_BUF_SIZE 16384 +#endif /* __ia64__ */ +#endif + +/* The state buf must be large enough to hold one state per character in the main buffer. + */ +#define YY_STATE_BUF_SIZE ((YY_BUF_SIZE + 2) * sizeof(yy_state_type)) + +#ifndef YY_TYPEDEF_YY_BUFFER_STATE +#define YY_TYPEDEF_YY_BUFFER_STATE +typedef struct yy_buffer_state *YY_BUFFER_STATE; +#endif + +#ifndef YY_TYPEDEF_YY_SIZE_T +#define YY_TYPEDEF_YY_SIZE_T +typedef size_t yy_size_t; +#endif + +extern int yyleng; + +extern FILE *yyin, *yyout; + +#define EOB_ACT_CONTINUE_SCAN 0 +#define EOB_ACT_END_OF_FILE 1 +#define EOB_ACT_LAST_MATCH 2 + + #define YY_LESS_LINENO(n) + #define YY_LINENO_REWIND_TO(ptr) + +/* Return all but the first "n" matched characters back to the input stream. */ +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + *yy_cp = (yy_hold_char); \ + YY_RESTORE_YY_MORE_OFFSET \ + (yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \ + YY_DO_BEFORE_ACTION; /* set up yytext again */ \ + } \ + while ( 0 ) +#define unput(c) yyunput( c, (yytext_ptr) ) + +#ifndef YY_STRUCT_YY_BUFFER_STATE +#define YY_STRUCT_YY_BUFFER_STATE +struct yy_buffer_state + { + FILE *yy_input_file; + + char *yy_ch_buf; /* input buffer */ + char *yy_buf_pos; /* current position in input buffer */ + + /* Size of input buffer in bytes, not including room for EOB + * characters. + */ + int yy_buf_size; + + /* Number of characters read into yy_ch_buf, not including EOB + * characters. + */ + int yy_n_chars; + + /* Whether we "own" the buffer - i.e., we know we created it, + * and can realloc() it to grow it, and should free() it to + * delete it. + */ + int yy_is_our_buffer; + + /* Whether this is an "interactive" input source; if so, and + * if we're using stdio for input, then we want to use getc() + * instead of fread(), to make sure we stop fetching input after + * each newline. + */ + int yy_is_interactive; + + /* Whether we're considered to be at the beginning of a line. + * If so, '^' rules will be active on the next match, otherwise + * not. + */ + int yy_at_bol; + + int yy_bs_lineno; /**< The line count. */ + int yy_bs_column; /**< The column count. */ + + /* Whether to try to fill the input buffer when we reach the + * end of it. + */ + int yy_fill_buffer; + + int yy_buffer_status; + +#define YY_BUFFER_NEW 0 +#define YY_BUFFER_NORMAL 1 + /* When an EOF's been seen but there's still some text to process + * then we mark the buffer as YY_EOF_PENDING, to indicate that we + * shouldn't try reading from the input source any more. We might + * still have a bunch of tokens to match, though, because of + * possible backing-up. + * + * When we actually see the EOF, we change the status to "new" + * (via yyrestart()), so that the user can continue scanning by + * just pointing yyin at a new input file. + */ +#define YY_BUFFER_EOF_PENDING 2 + + }; +#endif /* !YY_STRUCT_YY_BUFFER_STATE */ + +/* Stack of input buffers. */ +static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */ +static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */ +static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */ + +/* We provide macros for accessing buffer states in case in the + * future we want to put the buffer states in a more general + * "scanner state". + * + * Returns the top of the stack, or NULL. + */ +#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \ + ? (yy_buffer_stack)[(yy_buffer_stack_top)] \ + : NULL) +/* Same as previous macro, but useful when we know that the buffer stack is not + * NULL or when we need an lvalue. For internal use only. + */ +#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)] + +/* yy_hold_char holds the character lost when yytext is formed. */ +static char yy_hold_char; +static int yy_n_chars; /* number of characters read into yy_ch_buf */ +int yyleng; + +/* Points to current character in buffer. */ +static char *yy_c_buf_p = NULL; +static int yy_init = 0; /* whether we need to initialize */ +static int yy_start = 0; /* start state number */ + +/* Flag which is used to allow yywrap()'s to do buffer switches + * instead of setting up a fresh yyin. A bit of a hack ... + */ +static int yy_did_buffer_switch_on_eof; + +void yyrestart ( FILE *input_file ); +void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer ); +YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size ); +void yy_delete_buffer ( YY_BUFFER_STATE b ); +void yy_flush_buffer ( YY_BUFFER_STATE b ); +void yypush_buffer_state ( YY_BUFFER_STATE new_buffer ); +void yypop_buffer_state ( void ); + +static void yyensure_buffer_stack ( void ); +static void yy_load_buffer_state ( void ); +static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file ); +#define YY_FLUSH_BUFFER yy_flush_buffer( YY_CURRENT_BUFFER ) + +YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size ); +YY_BUFFER_STATE yy_scan_string ( const char *yy_str ); +YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len ); + +void *yyalloc ( yy_size_t ); +void *yyrealloc ( void *, yy_size_t ); +void yyfree ( void * ); + +#define yy_new_buffer yy_create_buffer +#define yy_set_interactive(is_interactive) \ + { \ + if ( ! YY_CURRENT_BUFFER ){ \ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer( yyin, YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \ + } +#define yy_set_bol(at_bol) \ + { \ + if ( ! YY_CURRENT_BUFFER ){\ + yyensure_buffer_stack (); \ + YY_CURRENT_BUFFER_LVALUE = \ + yy_create_buffer( yyin, YY_BUF_SIZE ); \ + } \ + YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \ + } +#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol) + +/* Begin user sect3 */ +typedef flex_uint8_t YY_CHAR; + +FILE *yyin = NULL, *yyout = NULL; + +typedef int yy_state_type; + +extern int yylineno; +int yylineno = 1; + +extern char *yytext; +#ifdef yytext_ptr +#undef yytext_ptr +#endif +#define yytext_ptr yytext + +static yy_state_type yy_get_previous_state ( void ); +static yy_state_type yy_try_NUL_trans ( yy_state_type current_state ); +static int yy_get_next_buffer ( void ); +static void yynoreturn yy_fatal_error ( const char* msg ); + +/* Done after the current pattern has been matched and before the + * corresponding action - sets up yytext. + */ +#define YY_DO_BEFORE_ACTION \ + (yytext_ptr) = yy_bp; \ + yyleng = (int) (yy_cp - yy_bp); \ + (yy_hold_char) = *yy_cp; \ + *yy_cp = '\0'; \ + (yy_c_buf_p) = yy_cp; +#define YY_NUM_RULES 6 +#define YY_END_OF_BUFFER 7 +/* This struct is not used in this scanner, + but its presence is necessary. */ +struct yy_trans_info + { + flex_int32_t yy_verify; + flex_int32_t yy_nxt; + }; +static const flex_int16_t yy_accept[14] = + { 0, + 0, 0, 7, 6, 5, 4, 3, 3, 3, 2, + 3, 1, 0 + } ; + +static const YY_CHAR yy_ec[256] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 2, 3, + 1, 1, 2, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 2, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 4, 5, 5, + 5, 5, 5, 5, 5, 5, 5, 6, 1, 1, + 1, 1, 2, 1, 5, 5, 5, 5, 5, 5, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 8, 7, 7, + 1, 1, 1, 1, 7, 1, 5, 5, 5, 5, + + 5, 5, 7, 7, 7, 7, 7, 7, 7, 7, + 7, 7, 7, 7, 7, 7, 7, 7, 7, 8, + 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, + 1, 1, 1, 1, 1 + } ; + +static const YY_CHAR yy_meta[9] = + { 0, + 1, 1, 1, 2, 2, 2, 2, 2 + } ; + +static const flex_int16_t yy_base[15] = + { 0, + 0, 0, 15, 16, 16, 16, 3, 8, 0, 16, + 8, 0, 16, 8 + } ; + +static const flex_int16_t yy_def[15] = + { 0, + 13, 1, 13, 13, 13, 13, 14, 14, 8, 13, + 8, 11, 0, 13 + } ; + +static const flex_int16_t yy_nxt[25] = + { 0, + 4, 5, 6, 7, 8, 4, 8, 8, 10, 9, + 11, 12, 12, 10, 13, 3, 13, 13, 13, 13, + 13, 13, 13, 13 + } ; + +static const flex_int16_t yy_chk[25] = + { 0, + 1, 1, 1, 1, 1, 1, 1, 1, 7, 14, + 7, 11, 11, 8, 3, 13, 13, 13, 13, 13, + 13, 13, 13, 13 + } ; + +static yy_state_type yy_last_accepting_state; +static char *yy_last_accepting_cpos; + +extern int yy_flex_debug; +int yy_flex_debug = 0; + +/* The intent behind this definition is that it'll catch + * any uses of REJECT which flex missed. + */ +#define REJECT reject_used_but_not_detected +#define yymore() yymore_used_but_not_detected +#define YY_MORE_ADJ 0 +#define YY_RESTORE_YY_MORE_OFFSET +char *yytext; +#line 1 "lexer.l" +#line 2 "lexer.l" +#include +#include +#line 451 "lexer.flex.cpp" +#line 452 "lexer.flex.cpp" + +#define INITIAL 0 + +/*windows compatibility case*/ +#include +#define isatty _isatty +#define fileno _fileno + +#ifndef YY_EXTRA_TYPE +#define YY_EXTRA_TYPE void * +#endif + +static int yy_init_globals ( void ); + +/* Accessor methods to globals. + These are made visible to non-reentrant scanners for convenience. */ + +int yylex_destroy ( void ); + +int yyget_debug ( void ); + +void yyset_debug ( int debug_flag ); + +YY_EXTRA_TYPE yyget_extra ( void ); + +void yyset_extra ( YY_EXTRA_TYPE user_defined ); + +FILE *yyget_in ( void ); + +void yyset_in ( FILE * _in_str ); + +FILE *yyget_out ( void ); + +void yyset_out ( FILE * _out_str ); + + int yyget_leng ( void ); + +char *yyget_text ( void ); + +int yyget_lineno ( void ); + +void yyset_lineno ( int _line_number ); + +/* Macros after this point can all be overridden by user definitions in + * section 1. + */ + +#ifndef YY_SKIP_YYWRAP +#ifdef __cplusplus +extern "C" int yywrap ( void ); +#else +extern int yywrap ( void ); +#endif +#endif + +#ifndef YY_NO_UNPUT + + static void yyunput ( int c, char *buf_ptr ); + +#endif + +#ifndef yytext_ptr +static void yy_flex_strncpy ( char *, const char *, int ); +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen ( const char * ); +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus +static int yyinput ( void ); +#else +static int input ( void ); +#endif + +#endif + +/* Amount of stuff to slurp up with each read. */ +#ifndef YY_READ_BUF_SIZE +#ifdef __ia64__ +/* On IA-64, the buffer size is 16k, not 8k */ +#define YY_READ_BUF_SIZE 16384 +#else +#define YY_READ_BUF_SIZE 8192 +#endif /* __ia64__ */ +#endif + +/* Copy whatever the last rule matched to the standard output. */ +#ifndef ECHO +/* This used to be an fputs(), but since the string might contain NUL's, + * we now use fwrite(). + */ +#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0) +#endif + +/* Gets input and stuffs it into "buf". number of characters read, or YY_NULL, + * is returned in "result". + */ +#ifndef YY_INPUT +#define YY_INPUT(buf,result,max_size) \ + if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \ + { \ + int c = '*'; \ + int n; \ + for ( n = 0; n < max_size && \ + (c = getc( yyin )) != EOF && c != '\n'; ++n ) \ + buf[n] = (char) c; \ + if ( c == '\n' ) \ + buf[n++] = (char) c; \ + if ( c == EOF && ferror( yyin ) ) \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + result = n; \ + } \ + else \ + { \ + errno=0; \ + while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \ + { \ + if( errno != EINTR) \ + { \ + YY_FATAL_ERROR( "input in flex scanner failed" ); \ + break; \ + } \ + errno=0; \ + clearerr(yyin); \ + } \ + }\ +\ + +#endif + +/* No semi-colon after return; correct usage is to write "yyterminate();" - + * we don't want an extra ';' after the "return" because that will cause + * some compilers to complain about unreachable statements. + */ +#ifndef yyterminate +#define yyterminate() return YY_NULL +#endif + +/* Number of entries by which start-condition stack grows. */ +#ifndef YY_START_STACK_INCR +#define YY_START_STACK_INCR 25 +#endif + +/* Report a fatal error. */ +#ifndef YY_FATAL_ERROR +#define YY_FATAL_ERROR(msg) yy_fatal_error( msg ) +#endif + +/* end tables serialization structures and prototypes */ + +/* Default declaration of generated scanner - a define so the user can + * easily add parameters. + */ +#ifndef YY_DECL +#define YY_DECL_IS_OURS 1 + +extern int yylex (void); + +#define YY_DECL int yylex (void) +#endif /* !YY_DECL */ + +/* Code executed at the beginning of each rule, after yytext and yyleng + * have been set up. + */ +#ifndef YY_USER_ACTION +#define YY_USER_ACTION +#endif + +/* Code executed at the end of each rule. */ +#ifndef YY_BREAK +#define YY_BREAK /*LINTED*/break; +#endif + +#define YY_RULE_SETUP \ + YY_USER_ACTION + +/** The main scanner function which does all the work. + */ +YY_DECL +{ + yy_state_type yy_current_state; + char *yy_cp, *yy_bp; + int yy_act; + + if ( !(yy_init) ) + { + (yy_init) = 1; + +#ifdef YY_USER_INIT + YY_USER_INIT; +#endif + + if ( ! (yy_start) ) + (yy_start) = 1; /* first start state */ + + if ( ! yyin ) + yyin = stdin; + + if ( ! yyout ) + yyout = stdout; + + if ( ! YY_CURRENT_BUFFER ) { + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE ); + } + + yy_load_buffer_state( ); + } + + { +#line 6 "lexer.l" + +#line 668 "lexer.flex.cpp" + + while ( /*CONSTCOND*/1 ) /* loops until end-of-file is reached */ + { + yy_cp = (yy_c_buf_p); + + /* Support of yytext. */ + *yy_cp = (yy_hold_char); + + /* yy_bp points to the position in yy_ch_buf of the start of + * the current run. + */ + yy_bp = yy_cp; + + yy_current_state = (yy_start); +yy_match: + do + { + YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 14 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + ++yy_cp; + } + while ( yy_base[yy_current_state] != 16 ); + +yy_find_action: + yy_act = yy_accept[yy_current_state]; + if ( yy_act == 0 ) + { /* have to back up */ + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + yy_act = yy_accept[yy_current_state]; + } + + YY_DO_BEFORE_ACTION; + +do_action: /* This label is used only to access EOF actions. */ + + switch ( yy_act ) + { /* beginning of action switch */ + case 0: /* must back up */ + /* undo the effects of YY_DO_BEFORE_ACTION */ + *yy_cp = (yy_hold_char); + yy_cp = (yy_last_accepting_cpos); + yy_current_state = (yy_last_accepting_state); + goto yy_find_action; + +case 1: +YY_RULE_SETUP +#line 7 "lexer.l" +{ yylval.imm_val = strtoull(yytext, nullptr, 16); return IMM; } + YY_BREAK +case 2: +YY_RULE_SETUP +#line 8 "lexer.l" +{ strcpy(yylval.label_name, yytext); return LABEL; } + YY_BREAK +case 3: +YY_RULE_SETUP +#line 9 "lexer.l" +{ strcpy(yylval.vinstr_name, yytext); return VINSTR; } + YY_BREAK +case 4: +/* rule 4 can match eol */ +YY_RULE_SETUP +#line 10 "lexer.l" +{ yylineno++; } + YY_BREAK +case 5: +/* rule 5 can match eol */ +YY_RULE_SETUP +#line 11 "lexer.l" + + YY_BREAK +case 6: +YY_RULE_SETUP +#line 12 "lexer.l" +ECHO; + YY_BREAK +#line 757 "lexer.flex.cpp" +case YY_STATE_EOF(INITIAL): + yyterminate(); + + case YY_END_OF_BUFFER: + { + /* Amount of text matched not including the EOB char. */ + int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1; + + /* Undo the effects of YY_DO_BEFORE_ACTION. */ + *yy_cp = (yy_hold_char); + YY_RESTORE_YY_MORE_OFFSET + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW ) + { + /* We're scanning a new file or input source. It's + * possible that this happened because the user + * just pointed yyin at a new source and called + * yylex(). If so, then we have to assure + * consistency between YY_CURRENT_BUFFER and our + * globals. Here is the right place to do so, because + * this is the first action (other than possibly a + * back-up) that will match for the new input source. + */ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL; + } + + /* Note that here we test for yy_c_buf_p "<=" to the position + * of the first EOB in the buffer, since yy_c_buf_p will + * already have been incremented past the NUL character + * (since all states make transitions on EOB to the + * end-of-buffer state). Contrast this with the test + * in input(). + */ + if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + { /* This was really a NUL. */ + yy_state_type yy_next_state; + + (yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + /* Okay, we're now positioned to make the NUL + * transition. We couldn't have + * yy_get_previous_state() go ahead and do it + * for us because it doesn't know how to deal + * with the possibility of jamming (and we don't + * want to build jamming into it because then it + * will run more slowly). + */ + + yy_next_state = yy_try_NUL_trans( yy_current_state ); + + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + + if ( yy_next_state ) + { + /* Consume the NUL. */ + yy_cp = ++(yy_c_buf_p); + yy_current_state = yy_next_state; + goto yy_match; + } + + else + { + yy_cp = (yy_c_buf_p); + goto yy_find_action; + } + } + + else switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_END_OF_FILE: + { + (yy_did_buffer_switch_on_eof) = 0; + + if ( yywrap( ) ) + { + /* Note: because we've taken care in + * yy_get_next_buffer() to have set up + * yytext, we can now set up + * yy_c_buf_p so that if some total + * hoser (like flex itself) wants to + * call the scanner after we return the + * YY_NULL, it'll still work - another + * YY_NULL will get returned. + */ + (yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ; + + yy_act = YY_STATE_EOF(YY_START); + goto do_action; + } + + else + { + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; + } + break; + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = + (yytext_ptr) + yy_amount_of_matched_text; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_match; + + case EOB_ACT_LAST_MATCH: + (yy_c_buf_p) = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)]; + + yy_current_state = yy_get_previous_state( ); + + yy_cp = (yy_c_buf_p); + yy_bp = (yytext_ptr) + YY_MORE_ADJ; + goto yy_find_action; + } + break; + } + + default: + YY_FATAL_ERROR( + "fatal flex scanner internal error--no action found" ); + } /* end of action switch */ + } /* end of scanning one token */ + } /* end of user's declarations */ +} /* end of yylex */ + +/* yy_get_next_buffer - try to read in a new buffer + * + * Returns a code representing an action: + * EOB_ACT_LAST_MATCH - + * EOB_ACT_CONTINUE_SCAN - continue scanning from current position + * EOB_ACT_END_OF_FILE - end of file + */ +static int yy_get_next_buffer (void) +{ + char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf; + char *source = (yytext_ptr); + int number_to_move, i; + int ret_val; + + if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] ) + YY_FATAL_ERROR( + "fatal flex scanner internal error--end of buffer missed" ); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 ) + { /* Don't try to fill the buffer, so this is an EOF. */ + if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 ) + { + /* We matched a single character, the EOB, so + * treat this as a final EOF. + */ + return EOB_ACT_END_OF_FILE; + } + + else + { + /* We matched some text prior to the EOB, first + * process it. + */ + return EOB_ACT_LAST_MATCH; + } + } + + /* Try to read more data. */ + + /* First move last chars to start of buffer. */ + number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1); + + for ( i = 0; i < number_to_move; ++i ) + *(dest++) = *(source++); + + if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING ) + /* don't do the read, it's not guaranteed to return an EOF, + * just force an EOF + */ + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0; + + else + { + int num_to_read = + YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1; + + while ( num_to_read <= 0 ) + { /* Not enough room in the buffer - grow it. */ + + /* just a shorter name for the current buffer */ + YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE; + + int yy_c_buf_p_offset = + (int) ((yy_c_buf_p) - b->yy_ch_buf); + + if ( b->yy_is_our_buffer ) + { + int new_size = b->yy_buf_size * 2; + + if ( new_size <= 0 ) + b->yy_buf_size += b->yy_buf_size / 8; + else + b->yy_buf_size *= 2; + + b->yy_ch_buf = (char *) + /* Include room in for 2 EOB chars. */ + yyrealloc( (void *) b->yy_ch_buf, + (yy_size_t) (b->yy_buf_size + 2) ); + } + else + /* Can't grow it, we don't own it. */ + b->yy_ch_buf = NULL; + + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( + "fatal error - scanner input buffer overflow" ); + + (yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset]; + + num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size - + number_to_move - 1; + + } + + if ( num_to_read > YY_READ_BUF_SIZE ) + num_to_read = YY_READ_BUF_SIZE; + + /* Read in more data. */ + YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]), + (yy_n_chars), num_to_read ); + + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + if ( (yy_n_chars) == 0 ) + { + if ( number_to_move == YY_MORE_ADJ ) + { + ret_val = EOB_ACT_END_OF_FILE; + yyrestart( yyin ); + } + + else + { + ret_val = EOB_ACT_LAST_MATCH; + YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = + YY_BUFFER_EOF_PENDING; + } + } + + else + ret_val = EOB_ACT_CONTINUE_SCAN; + + if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) { + /* Extend the array by 50%, plus the number we really need. */ + int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1); + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc( + (void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf, (yy_size_t) new_size ); + if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" ); + /* "- 2" to take care of EOB's */ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size = (int) (new_size - 2); + } + + (yy_n_chars) += number_to_move; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR; + YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR; + + (yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0]; + + return ret_val; +} + +/* yy_get_previous_state - get the state just before the EOB char was reached */ + + static yy_state_type yy_get_previous_state (void) +{ + yy_state_type yy_current_state; + char *yy_cp; + + yy_current_state = (yy_start); + + for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp ) + { + YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1); + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 14 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + } + + return yy_current_state; +} + +/* yy_try_NUL_trans - try to make a transition on the NUL character + * + * synopsis + * next_state = yy_try_NUL_trans( current_state ); + */ + static yy_state_type yy_try_NUL_trans (yy_state_type yy_current_state ) +{ + int yy_is_jam; + char *yy_cp = (yy_c_buf_p); + + YY_CHAR yy_c = 1; + if ( yy_accept[yy_current_state] ) + { + (yy_last_accepting_state) = yy_current_state; + (yy_last_accepting_cpos) = yy_cp; + } + while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state ) + { + yy_current_state = (int) yy_def[yy_current_state]; + if ( yy_current_state >= 14 ) + yy_c = yy_meta[yy_c]; + } + yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c]; + yy_is_jam = (yy_current_state == 13); + + return yy_is_jam ? 0 : yy_current_state; +} + +#ifndef YY_NO_UNPUT + + static void yyunput (int c, char * yy_bp ) +{ + char *yy_cp; + + yy_cp = (yy_c_buf_p); + + /* undo effects of setting up yytext */ + *yy_cp = (yy_hold_char); + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + { /* need to shift things up to make room */ + /* +2 for EOB chars. */ + int number_to_move = (yy_n_chars) + 2; + char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[ + YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2]; + char *source = + &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]; + + while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf ) + *--dest = *--source; + + yy_cp += (int) (dest - source); + yy_bp += (int) (dest - source); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = + (yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size; + + if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 ) + YY_FATAL_ERROR( "flex scanner push-back overflow" ); + } + + *--yy_cp = (char) c; + + (yytext_ptr) = yy_bp; + (yy_hold_char) = *yy_cp; + (yy_c_buf_p) = yy_cp; +} + +#endif + +#ifndef YY_NO_INPUT +#ifdef __cplusplus + static int yyinput (void) +#else + static int input (void) +#endif + +{ + int c; + + *(yy_c_buf_p) = (yy_hold_char); + + if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR ) + { + /* yy_c_buf_p now points to the character we want to return. + * If this occurs *before* the EOB characters, then it's a + * valid NUL; if not, then we've hit the end of the buffer. + */ + if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] ) + /* This was really a NUL. */ + *(yy_c_buf_p) = '\0'; + + else + { /* need more input */ + int offset = (int) ((yy_c_buf_p) - (yytext_ptr)); + ++(yy_c_buf_p); + + switch ( yy_get_next_buffer( ) ) + { + case EOB_ACT_LAST_MATCH: + /* This happens because yy_g_n_b() + * sees that we've accumulated a + * token and flags that we need to + * try matching the token before + * proceeding. But for input(), + * there's no matching to consider. + * So convert the EOB_ACT_LAST_MATCH + * to EOB_ACT_END_OF_FILE. + */ + + /* Reset buffer status. */ + yyrestart( yyin ); + + /*FALLTHROUGH*/ + + case EOB_ACT_END_OF_FILE: + { + if ( yywrap( ) ) + return 0; + + if ( ! (yy_did_buffer_switch_on_eof) ) + YY_NEW_FILE; +#ifdef __cplusplus + return yyinput(); +#else + return input(); +#endif + } + + case EOB_ACT_CONTINUE_SCAN: + (yy_c_buf_p) = (yytext_ptr) + offset; + break; + } + } + } + + c = *(unsigned char *) (yy_c_buf_p); /* cast for 8-bit char's */ + *(yy_c_buf_p) = '\0'; /* preserve yytext */ + (yy_hold_char) = *++(yy_c_buf_p); + + return c; +} +#endif /* ifndef YY_NO_INPUT */ + +/** Immediately switch to a different input stream. + * @param input_file A readable stream. + * + * @note This function does not reset the start condition to @c INITIAL . + */ + void yyrestart (FILE * input_file ) +{ + + if ( ! YY_CURRENT_BUFFER ){ + yyensure_buffer_stack (); + YY_CURRENT_BUFFER_LVALUE = + yy_create_buffer( yyin, YY_BUF_SIZE ); + } + + yy_init_buffer( YY_CURRENT_BUFFER, input_file ); + yy_load_buffer_state( ); +} + +/** Switch to a different input buffer. + * @param new_buffer The new input buffer. + * + */ + void yy_switch_to_buffer (YY_BUFFER_STATE new_buffer ) +{ + + /* TODO. We should be able to replace this entire function body + * with + * yypop_buffer_state(); + * yypush_buffer_state(new_buffer); + */ + yyensure_buffer_stack (); + if ( YY_CURRENT_BUFFER == new_buffer ) + return; + + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + YY_CURRENT_BUFFER_LVALUE = new_buffer; + yy_load_buffer_state( ); + + /* We don't actually know whether we did this switch during + * EOF (yywrap()) processing, but the only time this flag + * is looked at is after yywrap() is called, so it's safe + * to go ahead and always set it. + */ + (yy_did_buffer_switch_on_eof) = 1; +} + +static void yy_load_buffer_state (void) +{ + (yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars; + (yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos; + yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file; + (yy_hold_char) = *(yy_c_buf_p); +} + +/** Allocate and initialize an input buffer state. + * @param file A readable stream. + * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE. + * + * @return the allocated buffer state. + */ + YY_BUFFER_STATE yy_create_buffer (FILE * file, int size ) +{ + YY_BUFFER_STATE b; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_buf_size = size; + + /* yy_ch_buf has to be 2 characters longer than the size given because + * we need to put in 2 end-of-buffer characters. + */ + b->yy_ch_buf = (char *) yyalloc( (yy_size_t) (b->yy_buf_size + 2) ); + if ( ! b->yy_ch_buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" ); + + b->yy_is_our_buffer = 1; + + yy_init_buffer( b, file ); + + return b; +} + +/** Destroy the buffer. + * @param b a buffer created with yy_create_buffer() + * + */ + void yy_delete_buffer (YY_BUFFER_STATE b ) +{ + + if ( ! b ) + return; + + if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */ + YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0; + + if ( b->yy_is_our_buffer ) + yyfree( (void *) b->yy_ch_buf ); + + yyfree( (void *) b ); +} + +/* Initializes or reinitializes a buffer. + * This function is sometimes called more than once on the same buffer, + * such as during a yyrestart() or at EOF. + */ + static void yy_init_buffer (YY_BUFFER_STATE b, FILE * file ) + +{ + int oerrno = errno; + + yy_flush_buffer( b ); + + b->yy_input_file = file; + b->yy_fill_buffer = 1; + + /* If b is the current buffer, then yy_init_buffer was _probably_ + * called from yyrestart() or through yy_get_next_buffer. + * In that case, we don't want to reset the lineno or column. + */ + if (b != YY_CURRENT_BUFFER){ + b->yy_bs_lineno = 1; + b->yy_bs_column = 0; + } + + b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0; + + errno = oerrno; +} + +/** Discard all buffered characters. On the next scan, YY_INPUT will be called. + * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER. + * + */ + void yy_flush_buffer (YY_BUFFER_STATE b ) +{ + if ( ! b ) + return; + + b->yy_n_chars = 0; + + /* We always need two end-of-buffer characters. The first causes + * a transition to the end-of-buffer state. The second causes + * a jam in that state. + */ + b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR; + b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR; + + b->yy_buf_pos = &b->yy_ch_buf[0]; + + b->yy_at_bol = 1; + b->yy_buffer_status = YY_BUFFER_NEW; + + if ( b == YY_CURRENT_BUFFER ) + yy_load_buffer_state( ); +} + +/** Pushes the new state onto the stack. The new state becomes + * the current state. This function will allocate the stack + * if necessary. + * @param new_buffer The new state. + * + */ +void yypush_buffer_state (YY_BUFFER_STATE new_buffer ) +{ + if (new_buffer == NULL) + return; + + yyensure_buffer_stack(); + + /* This block is copied from yy_switch_to_buffer. */ + if ( YY_CURRENT_BUFFER ) + { + /* Flush out information for old buffer. */ + *(yy_c_buf_p) = (yy_hold_char); + YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p); + YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars); + } + + /* Only push if top exists. Otherwise, replace top. */ + if (YY_CURRENT_BUFFER) + (yy_buffer_stack_top)++; + YY_CURRENT_BUFFER_LVALUE = new_buffer; + + /* copied from yy_switch_to_buffer. */ + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; +} + +/** Removes and deletes the top of the stack, if present. + * The next element becomes the new top. + * + */ +void yypop_buffer_state (void) +{ + if (!YY_CURRENT_BUFFER) + return; + + yy_delete_buffer(YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + if ((yy_buffer_stack_top) > 0) + --(yy_buffer_stack_top); + + if (YY_CURRENT_BUFFER) { + yy_load_buffer_state( ); + (yy_did_buffer_switch_on_eof) = 1; + } +} + +/* Allocates the stack if it does not exist. + * Guarantees space for at least one push. + */ +static void yyensure_buffer_stack (void) +{ + yy_size_t num_to_alloc; + + if (!(yy_buffer_stack)) { + + /* First allocation is just for 2 elements, since we don't know if this + * scanner will even need a stack. We use 2 instead of 1 to avoid an + * immediate realloc on the next call. + */ + num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */ + (yy_buffer_stack) = (struct yy_buffer_state**)yyalloc + (num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*)); + + (yy_buffer_stack_max) = num_to_alloc; + (yy_buffer_stack_top) = 0; + return; + } + + if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){ + + /* Increase the buffer to prepare for a possible push. */ + yy_size_t grow_size = 8 /* arbitrary grow size */; + + num_to_alloc = (yy_buffer_stack_max) + grow_size; + (yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc + ((yy_buffer_stack), + num_to_alloc * sizeof(struct yy_buffer_state*) + ); + if ( ! (yy_buffer_stack) ) + YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" ); + + /* zero only the new slots.*/ + memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*)); + (yy_buffer_stack_max) = num_to_alloc; + } +} + +/** Setup the input buffer state to scan directly from a user-specified character buffer. + * @param base the character buffer + * @param size the size in bytes of the character buffer + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_buffer (char * base, yy_size_t size ) +{ + YY_BUFFER_STATE b; + + if ( size < 2 || + base[size-2] != YY_END_OF_BUFFER_CHAR || + base[size-1] != YY_END_OF_BUFFER_CHAR ) + /* They forgot to leave room for the EOB's. */ + return NULL; + + b = (YY_BUFFER_STATE) yyalloc( sizeof( struct yy_buffer_state ) ); + if ( ! b ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" ); + + b->yy_buf_size = (int) (size - 2); /* "- 2" to take care of EOB's */ + b->yy_buf_pos = b->yy_ch_buf = base; + b->yy_is_our_buffer = 0; + b->yy_input_file = NULL; + b->yy_n_chars = b->yy_buf_size; + b->yy_is_interactive = 0; + b->yy_at_bol = 1; + b->yy_fill_buffer = 0; + b->yy_buffer_status = YY_BUFFER_NEW; + + yy_switch_to_buffer( b ); + + return b; +} + +/** Setup the input buffer state to scan a string. The next call to yylex() will + * scan from a @e copy of @a str. + * @param yystr a NUL-terminated string to scan + * + * @return the newly allocated buffer state object. + * @note If you want to scan bytes that may contain NUL values, then use + * yy_scan_bytes() instead. + */ +YY_BUFFER_STATE yy_scan_string (const char * yystr ) +{ + + return yy_scan_bytes( yystr, (int) strlen(yystr) ); +} + +/** Setup the input buffer state to scan the given bytes. The next call to yylex() will + * scan from a @e copy of @a bytes. + * @param yybytes the byte buffer to scan + * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes. + * + * @return the newly allocated buffer state object. + */ +YY_BUFFER_STATE yy_scan_bytes (const char * yybytes, int _yybytes_len ) +{ + YY_BUFFER_STATE b; + char *buf; + yy_size_t n; + int i; + + /* Get memory for full buffer, including space for trailing EOB's. */ + n = (yy_size_t) (_yybytes_len + 2); + buf = (char *) yyalloc( n ); + if ( ! buf ) + YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" ); + + for ( i = 0; i < _yybytes_len; ++i ) + buf[i] = yybytes[i]; + + buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR; + + b = yy_scan_buffer( buf, n ); + if ( ! b ) + YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" ); + + /* It's okay to grow etc. this buffer, and we should throw it + * away when we're done. + */ + b->yy_is_our_buffer = 1; + + return b; +} + +#ifndef YY_EXIT_FAILURE +#define YY_EXIT_FAILURE 2 +#endif + +static void yynoreturn yy_fatal_error (const char* msg ) +{ + fprintf( stderr, "%s\n", msg ); + exit( YY_EXIT_FAILURE ); +} + +/* Redefine yyless() so it works in section 3 code. */ + +#undef yyless +#define yyless(n) \ + do \ + { \ + /* Undo effects of setting up yytext. */ \ + int yyless_macro_arg = (n); \ + YY_LESS_LINENO(yyless_macro_arg);\ + yytext[yyleng] = (yy_hold_char); \ + (yy_c_buf_p) = yytext + yyless_macro_arg; \ + (yy_hold_char) = *(yy_c_buf_p); \ + *(yy_c_buf_p) = '\0'; \ + yyleng = yyless_macro_arg; \ + } \ + while ( 0 ) + +/* Accessor methods (get/set functions) to struct members. */ + +/** Get the current line number. + * + */ +int yyget_lineno (void) +{ + + return yylineno; +} + +/** Get the input stream. + * + */ +FILE *yyget_in (void) +{ + return yyin; +} + +/** Get the output stream. + * + */ +FILE *yyget_out (void) +{ + return yyout; +} + +/** Get the length of the current token. + * + */ +int yyget_leng (void) +{ + return yyleng; +} + +/** Get the current token. + * + */ + +char *yyget_text (void) +{ + return yytext; +} + +/** Set the current line number. + * @param _line_number line number + * + */ +void yyset_lineno (int _line_number ) +{ + + yylineno = _line_number; +} + +/** Set the input stream. This does not discard the current + * input buffer. + * @param _in_str A readable stream. + * + * @see yy_switch_to_buffer + */ +void yyset_in (FILE * _in_str ) +{ + yyin = _in_str ; +} + +void yyset_out (FILE * _out_str ) +{ + yyout = _out_str ; +} + +int yyget_debug (void) +{ + return yy_flex_debug; +} + +void yyset_debug (int _bdebug ) +{ + yy_flex_debug = _bdebug ; +} + +static int yy_init_globals (void) +{ + /* Initialization is the same as for the non-reentrant scanner. + * This function is called from yylex_destroy(), so don't allocate here. + */ + + (yy_buffer_stack) = NULL; + (yy_buffer_stack_top) = 0; + (yy_buffer_stack_max) = 0; + (yy_c_buf_p) = NULL; + (yy_init) = 0; + (yy_start) = 0; + +/* Defined in main.c */ +#ifdef YY_STDINIT + yyin = stdin; + yyout = stdout; +#else + yyin = NULL; + yyout = NULL; +#endif + + /* For future reference: Set errno on error, since we are called by + * yylex_init() + */ + return 0; +} + +/* yylex_destroy is for both reentrant and non-reentrant scanners. */ +int yylex_destroy (void) +{ + + /* Pop the buffer stack, destroying each element. */ + while(YY_CURRENT_BUFFER){ + yy_delete_buffer( YY_CURRENT_BUFFER ); + YY_CURRENT_BUFFER_LVALUE = NULL; + yypop_buffer_state(); + } + + /* Destroy the stack itself. */ + yyfree((yy_buffer_stack) ); + (yy_buffer_stack) = NULL; + + /* Reset the globals. This is important in a non-reentrant scanner so the next time + * yylex() is called, initialization will occur. */ + yy_init_globals( ); + + return 0; +} + +/* + * Internal utility routines. + */ + +#ifndef yytext_ptr +static void yy_flex_strncpy (char* s1, const char * s2, int n ) +{ + + int i; + for ( i = 0; i < n; ++i ) + s1[i] = s2[i]; +} +#endif + +#ifdef YY_NEED_STRLEN +static int yy_flex_strlen (const char * s ) +{ + int n; + for ( n = 0; s[n]; ++n ) + ; + + return n; +} +#endif + +void *yyalloc (yy_size_t size ) +{ + return malloc(size); +} + +void *yyrealloc (void * ptr, yy_size_t size ) +{ + + /* The cast to (char *) in the following accommodates both + * implementations that use char* generic pointers, and those + * that use void* generic pointers. It works with the latter + * because both ANSI C and C++ allow castless assignment from + * any pointer type to void*, and deal with argument conversions + * as though doing an assignment. + */ + return realloc(ptr, size); +} + +void yyfree (void * ptr ) +{ + free( (char *) ptr ); /* see yyrealloc() for (char *) cast */ +} + +#define YYTABLES_NAME "yytables" + +#line 12 "lexer.l" + diff --git a/src/lexer.l b/src/lexer.l index 6995a4b..16858ae 100644 --- a/src/lexer.l +++ b/src/lexer.l @@ -1,5 +1,5 @@ %{ -#include "parser.tab.h" +#include #include %} diff --git a/src/parser.tab.cpp b/src/parser.tab.cpp new file mode 100644 index 0000000..859bb5b --- /dev/null +++ b/src/parser.tab.cpp @@ -0,0 +1,1436 @@ +/* A Bison parser, made by GNU Bison 2.7. */ + +/* Bison implementation for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +/* C LALR(1) parser skeleton written by Richard Stallman, by + simplifying the original so-called "semantic" parser. */ + +/* All symbols defined below should begin with yy or YY, to avoid + infringing on user name space. This should be done even for local + variables, as they might otherwise be expanded by user macros. + There are some unavoidable exceptions within include files to + define necessary library symbols; they are noted "INFRINGES ON + USER NAME SPACE" below. */ + +/* Identify Bison output. */ +#define YYBISON 1 + +/* Bison version. */ +#define YYBISON_VERSION "2.7" + +/* Skeleton name. */ +#define YYSKELETON_NAME "yacc.c" + +/* Pure parsers. */ +#define YYPURE 0 + +/* Push parsers. */ +#define YYPUSH 0 + +/* Pull parsers. */ +#define YYPULL 1 + +/* Copy the first part of user declarations. */ +/* Line 371 of yacc.c */ +#line 1 "parser.y" + +#include +#include +int yylex(void); +void yyerror(char*); +extern int yylineno; + +/* Line 371 of yacc.c */ +#line 76 "parser.tab.cpp" + +#ifndef YY_NULL +#if defined __cplusplus && 201103L <= __cplusplus +#define YY_NULL nullptr +#else +#define YY_NULL 0 +#endif +#endif + +/* Enabling verbose error messages. */ +#ifdef YYERROR_VERBOSE +#undef YYERROR_VERBOSE +#define YYERROR_VERBOSE 1 +#else +#define YYERROR_VERBOSE 0 +#endif + +/* In a future release of Bison, this section will be replaced + by #include "parser.tab.h". */ +#ifndef YY_YY_PARSER_TAB_H_INCLUDED +#define YY_YY_PARSER_TAB_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +#define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Tokens. */ +#ifndef YYTOKENTYPE +#define YYTOKENTYPE +/* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ +enum yytokentype { LABEL = 258, VINSTR = 259, IMM = 260 }; +#endif + +#if !defined YYSTYPE && !defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE { +/* Line 387 of yacc.c */ +#line 10 "parser.y" + + char vinstr_name[20]; + char label_name[256]; + unsigned long long imm_val; + +/* Line 387 of yacc.c */ +#line 131 "parser.tab.cpp" +} YYSTYPE; +#define YYSTYPE_IS_TRIVIAL 1 +#define yystype YYSTYPE /* obsolescent; will be withdrawn */ +#define YYSTYPE_IS_DECLARED 1 +#endif + +extern YYSTYPE yylval; + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse(void* YYPARSE_PARAM); +#else +int yyparse(); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse(void); +#else +int yyparse(); +#endif +#endif /* ! YYPARSE_PARAM */ + +#endif /* !YY_YY_PARSER_TAB_H_INCLUDED */ + +/* Copy the second part of user declarations. */ + +/* Line 390 of yacc.c */ +#line 159 "parser.tab.cpp" + +#ifdef short +#undef short +#endif + +#ifdef YYTYPE_UINT8 +typedef YYTYPE_UINT8 yytype_uint8; +#else +typedef unsigned char yytype_uint8; +#endif + +#ifdef YYTYPE_INT8 +typedef YYTYPE_INT8 yytype_int8; +#elif (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +typedef signed char yytype_int8; +#else +typedef short int yytype_int8; +#endif + +#ifdef YYTYPE_UINT16 +typedef YYTYPE_UINT16 yytype_uint16; +#else +typedef unsigned short int yytype_uint16; +#endif + +#ifdef YYTYPE_INT16 +typedef YYTYPE_INT16 yytype_int16; +#else +typedef short int yytype_int16; +#endif + +#ifndef YYSIZE_T +#ifdef __SIZE_TYPE__ +#define YYSIZE_T __SIZE_TYPE__ +#elif defined size_t +#define YYSIZE_T size_t +#elif !defined YYSIZE_T && (defined __STDC__ || defined __C99__FUNC__ || \ + defined __cplusplus || defined _MSC_VER) +#include /* INFRINGES ON USER NAME SPACE */ +#define YYSIZE_T size_t +#else +#define YYSIZE_T unsigned int +#endif +#endif + +#define YYSIZE_MAXIMUM ((YYSIZE_T)-1) + +#ifndef YY_ +#if defined YYENABLE_NLS && YYENABLE_NLS +#if ENABLE_NLS +#include /* INFRINGES ON USER NAME SPACE */ +#define YY_(Msgid) dgettext("bison-runtime", Msgid) +#endif +#endif +#ifndef YY_ +#define YY_(Msgid) Msgid +#endif +#endif + +/* Suppress unused-variable warnings by "using" E. */ +#if !defined lint || defined __GNUC__ +#define YYUSE(E) ((void)(E)) +#else +#define YYUSE(E) /* empty */ +#endif + +/* Identity function, used to suppress warnings about constant conditions. */ +#ifndef lint +#define YYID(N) (N) +#else +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static int YYID(int yyi) +#else +static int YYID(yyi) int yyi; +#endif +{ + return yyi; +} +#endif + +#if !defined yyoverflow || YYERROR_VERBOSE + +/* The parser invokes alloca or malloc; define the necessary symbols. */ + +#ifdef YYSTACK_USE_ALLOCA +#if YYSTACK_USE_ALLOCA +#ifdef __GNUC__ +#define YYSTACK_ALLOC __builtin_alloca +#elif defined __BUILTIN_VA_ARG_INCR +#include /* INFRINGES ON USER NAME SPACE */ +#elif defined _AIX +#define YYSTACK_ALLOC __alloca +#elif defined _MSC_VER +#include /* INFRINGES ON USER NAME SPACE */ +#define alloca _alloca +#else +#define YYSTACK_ALLOC alloca +#if !defined _ALLOCA_H && !defined EXIT_SUCCESS && \ + (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +#include /* INFRINGES ON USER NAME SPACE */ +/* Use EXIT_SUCCESS as a witness for stdlib.h. */ +#ifndef EXIT_SUCCESS +#define EXIT_SUCCESS 0 +#endif +#endif +#endif +#endif +#endif + +#ifdef YYSTACK_ALLOC +/* Pacify GCC's `empty if-body' warning. */ +#define YYSTACK_FREE(Ptr) \ + do { /* empty */ \ + ; \ + } while (YYID(0)) +#ifndef YYSTACK_ALLOC_MAXIMUM +/* The OS might guarantee only one guard page at the bottom of the stack, + and a page size can be as small as 4096 bytes. So we cannot safely + invoke alloca (N) if N exceeds 4096. Use a slightly smaller number + to allow for a few compiler-allocated temporary stack slots. */ +#define YYSTACK_ALLOC_MAXIMUM 4032 /* reasonable circa 2006 */ +#endif +#else +#define YYSTACK_ALLOC YYMALLOC +#define YYSTACK_FREE YYFREE +#ifndef YYSTACK_ALLOC_MAXIMUM +#define YYSTACK_ALLOC_MAXIMUM YYSIZE_MAXIMUM +#endif +#if (defined __cplusplus && !defined EXIT_SUCCESS && \ + !((defined YYMALLOC || defined malloc) && \ + (defined YYFREE || defined free))) +#include /* INFRINGES ON USER NAME SPACE */ +#ifndef EXIT_SUCCESS +#define EXIT_SUCCESS 0 +#endif +#endif +#ifndef YYMALLOC +#define YYMALLOC malloc +#if !defined malloc && !defined EXIT_SUCCESS && \ + (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +void* malloc(YYSIZE_T); /* INFRINGES ON USER NAME SPACE */ +#endif +#endif +#ifndef YYFREE +#define YYFREE free +#if !defined free && !defined EXIT_SUCCESS && \ + (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +void free(void*); /* INFRINGES ON USER NAME SPACE */ +#endif +#endif +#endif +#endif /* ! defined yyoverflow || YYERROR_VERBOSE */ + +#if (!defined yyoverflow && \ + (!defined __cplusplus || \ + (defined YYSTYPE_IS_TRIVIAL && YYSTYPE_IS_TRIVIAL))) + +/* A type that is properly aligned for any stack member. */ +union yyalloc { + yytype_int16 yyss_alloc; + YYSTYPE yyvs_alloc; +}; + +/* The size of the maximum gap between one aligned stack and the next. */ +#define YYSTACK_GAP_MAXIMUM (sizeof(union yyalloc) - 1) + +/* The size of an array large to enough to hold all stacks, each with + N elements. */ +#define YYSTACK_BYTES(N) \ + ((N) * (sizeof(yytype_int16) + sizeof(YYSTYPE)) + YYSTACK_GAP_MAXIMUM) + +#define YYCOPY_NEEDED 1 + +/* Relocate STACK from its old location to the new one. The + local variables YYSIZE and YYSTACKSIZE give the old and new number of + elements in the stack, and YYPTR gives the new location of the + stack. Advance YYPTR to a properly aligned location for the next + stack. */ +#define YYSTACK_RELOCATE(Stack_alloc, Stack) \ + do { \ + YYSIZE_T yynewbytes; \ + YYCOPY(&yyptr->Stack_alloc, Stack, yysize); \ + Stack = &yyptr->Stack_alloc; \ + yynewbytes = yystacksize * sizeof(*Stack) + YYSTACK_GAP_MAXIMUM; \ + yyptr += yynewbytes / sizeof(*yyptr); \ + } while (YYID(0)) + +#endif + +#if defined YYCOPY_NEEDED && YYCOPY_NEEDED +/* Copy COUNT objects from SRC to DST. The source and destination do + not overlap. */ +#ifndef YYCOPY +#if defined __GNUC__ && 1 < __GNUC__ +#define YYCOPY(Dst, Src, Count) \ + __builtin_memcpy(Dst, Src, (Count) * sizeof(*(Src))) +#else +#define YYCOPY(Dst, Src, Count) \ + do { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (Dst)[yyi] = (Src)[yyi]; \ + } while (YYID(0)) +#endif +#endif +#endif /* !YYCOPY_NEEDED */ + +/* YYFINAL -- State number of the termination state. */ +#define YYFINAL 3 +/* YYLAST -- Last index in YYTABLE. */ +#define YYLAST 7 + +/* YYNTOKENS -- Number of terminals. */ +#define YYNTOKENS 6 +/* YYNNTS -- Number of nonterminals. */ +#define YYNNTS 3 +/* YYNRULES -- Number of rules. */ +#define YYNRULES 9 +/* YYNRULES -- Number of states. */ +#define YYNSTATES 10 + +/* YYTRANSLATE(YYLEX) -- Bison symbol number corresponding to YYLEX. */ +#define YYUNDEFTOK 2 +#define YYMAXUTOK 260 + +#define YYTRANSLATE(YYX) \ + ((unsigned int)(YYX) <= YYMAXUTOK ? yytranslate[YYX] : YYUNDEFTOK) + +/* YYTRANSLATE[YYLEX] -- Bison symbol number corresponding to YYLEX. */ +static const yytype_uint8 yytranslate[] = { + 0, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, + 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 3, 4, 5}; + +#if YYDEBUG +/* YYPRHS[YYN] -- Index of the first RHS symbol of rule number YYN in + YYRHS. */ +static const yytype_uint8 yyprhs[] = {0, 0, 3, 5, 8, 11, 12, 14, 17, 20}; + +/* YYRHS -- A `-1'-separated list of the rules' RHS. */ +static const yytype_int8 yyrhs[] = {7, 0, -1, 3, -1, 7, 3, -1, 7, 8, -1, -1, + 4, -1, 4, 5, -1, 8, 4, -1, 8, 4, 5, -1}; + +/* YYRLINE[YYN] -- source line where rule number YYN was defined. */ +static const yytype_uint8 yyrline[] = {0, 22, 22, 23, 24, 25, 29, 30, 31, 32}; +#endif + +#if YYDEBUG || YYERROR_VERBOSE || 0 +/* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. + First, the terminals, then, starting at YYNTOKENS, nonterminals. */ +static const char* const yytname[] = { + "$end", "error", "$undefined", "LABEL", "VINSTR", + "IMM", "$accept", "PROGRAM", "VINSTRS", YY_NULL}; +#endif + +#ifdef YYPRINT +/* YYTOKNUM[YYLEX-NUM] -- Internal token number corresponding to + token YYLEX-NUM. */ +static const yytype_uint16 yytoknum[] = {0, 256, 257, 258, 259, 260}; +#endif + +/* YYR1[YYN] -- Symbol number of symbol that rule YYN derives. */ +static const yytype_uint8 yyr1[] = {0, 6, 7, 7, 7, 7, 8, 8, 8, 8}; + +/* YYR2[YYN] -- Number of symbols composing right hand side of rule YYN. */ +static const yytype_uint8 yyr2[] = {0, 2, 1, 2, 2, 0, 1, 2, 2, 3}; + +/* YYDEFACT[STATE-NAME] -- Default reduction number in state STATE-NUM. + Performed when YYTABLE doesn't specify something else to do. Zero + means the default is an error. */ +static const yytype_uint8 yydefact[] = {5, 2, 0, 1, 3, 6, 4, 7, 8, 9}; + +/* YYDEFGOTO[NTERM-NUM]. */ +static const yytype_int8 yydefgoto[] = {-1, 2, 6}; + +/* YYPACT[STATE-NUM] -- Index in YYTABLE of the portion describing + STATE-NUM. */ +#define YYPACT_NINF -4 +static const yytype_int8 yypact[] = {-2, -4, 0, -4, -4, -3, 1, -4, 2, -4}; + +/* YYPGOTO[NTERM-NUM]. */ +static const yytype_int8 yypgoto[] = {-4, -4, -4}; + +/* YYTABLE[YYPACT[STATE-NUM]]. What to do in state STATE-NUM. If + positive, shift that token. If negative, reduce the rule which + number is the opposite. If YYTABLE_NINF, syntax error. */ +#define YYTABLE_NINF -1 +static const yytype_uint8 yytable[] = {3, 1, 7, 4, 5, 8, 0, 9}; + +#define yypact_value_is_default(Yystate) (!!((Yystate) == (-4))) + +#define yytable_value_is_error(Yytable_value) YYID(0) + +static const yytype_int8 yycheck[] = {0, 3, 5, 3, 4, 4, -1, 5}; + +/* YYSTOS[STATE-NUM] -- The (internal number of the) accessing + symbol of state STATE-NUM. */ +static const yytype_uint8 yystos[] = {0, 3, 7, 0, 3, 4, 8, 5, 4, 5}; + +#define yyerrok (yyerrstatus = 0) +#define yyclearin (yychar = YYEMPTY) +#define YYEMPTY (-2) +#define YYEOF 0 + +#define YYACCEPT goto yyacceptlab +#define YYABORT goto yyabortlab +#define YYERROR goto yyerrorlab + +/* Like YYERROR except do call yyerror. This remains here temporarily + to ease the transition to the new meaning of YYERROR, for GCC. + Once GCC version 2 has supplanted version 1, this can go. However, + YYFAIL appears to be in use. Nevertheless, it is formally deprecated + in Bison 2.4.2's NEWS entry, where a plan to phase it out is + discussed. */ + +#define YYFAIL goto yyerrlab +#if defined YYFAIL +/* This is here to suppress warnings from the GCC cpp's + -Wunused-macros. Normally we don't worry about that warning, but + some users do, and we want to make it easy for users to remove + YYFAIL uses, which will produce warnings from Bison 2.5. */ +#endif + +#define YYRECOVERING() (!!yyerrstatus) + +#define YYBACKUP(Token, Value) \ + do \ + if (yychar == YYEMPTY) { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK(yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } else { \ + yyerror(YY_("syntax error: cannot back up")); \ + YYERROR; \ + } \ + while (YYID(0)) + +/* Error token number */ +#define YYTERROR 1 +#define YYERRCODE 256 + +/* This macro is provided for backward compatibility. */ +#ifndef YY_LOCATION_PRINT +#define YY_LOCATION_PRINT(File, Loc) ((void)0) +#endif + +/* YYLEX -- calling `yylex' with the right arguments. */ +#ifdef YYLEX_PARAM +#define YYLEX yylex(YYLEX_PARAM) +#else +#define YYLEX yylex() +#endif + +/* Enable debugging if requested. */ +#if YYDEBUG + +#ifndef YYFPRINTF +#include /* INFRINGES ON USER NAME SPACE */ +#define YYFPRINTF fprintf +#endif + +#define YYDPRINTF(Args) \ + do { \ + if (yydebug) \ + YYFPRINTF Args; \ + } while (YYID(0)) + +#define YY_SYMBOL_PRINT(Title, Type, Value, Location) \ + do { \ + if (yydebug) { \ + YYFPRINTF(stderr, "%s ", Title); \ + yy_symbol_print(stderr, Type, Value); \ + YYFPRINTF(stderr, "\n"); \ + } \ + } while (YYID(0)) + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static void yy_symbol_value_print(FILE* yyoutput, + int yytype, + YYSTYPE const* const yyvaluep) +#else +static void yy_symbol_value_print(yyoutput, yytype, yyvaluep) FILE* yyoutput; +int yytype; +YYSTYPE const* const yyvaluep; +#endif +{ + FILE* yyo = yyoutput; + YYUSE(yyo); + if (!yyvaluep) + return; +#ifdef YYPRINT + if (yytype < YYNTOKENS) + YYPRINT(yyoutput, yytoknum[yytype], *yyvaluep); +#else + YYUSE(yyoutput); +#endif + switch (yytype) { + default: + break; + } +} + +/*--------------------------------. +| Print this symbol on YYOUTPUT. | +`--------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static void yy_symbol_print(FILE* yyoutput, + int yytype, + YYSTYPE const* const yyvaluep) +#else +static void yy_symbol_print(yyoutput, yytype, yyvaluep) FILE* yyoutput; +int yytype; +YYSTYPE const* const yyvaluep; +#endif +{ + if (yytype < YYNTOKENS) + YYFPRINTF(yyoutput, "token %s (", yytname[yytype]); + else + YYFPRINTF(yyoutput, "nterm %s (", yytname[yytype]); + + yy_symbol_value_print(yyoutput, yytype, yyvaluep); + YYFPRINTF(yyoutput, ")"); +} + +/*------------------------------------------------------------------. +| yy_stack_print -- Print the state stack from its BOTTOM up to its | +| TOP (included). | +`------------------------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static void yy_stack_print(yytype_int16* yybottom, yytype_int16* yytop) +#else +static void yy_stack_print(yybottom, yytop) yytype_int16* yybottom; +yytype_int16* yytop; +#endif +{ + YYFPRINTF(stderr, "Stack now"); + for (; yybottom <= yytop; yybottom++) { + int yybot = *yybottom; + YYFPRINTF(stderr, " %d", yybot); + } + YYFPRINTF(stderr, "\n"); +} + +#define YY_STACK_PRINT(Bottom, Top) \ + do { \ + if (yydebug) \ + yy_stack_print((Bottom), (Top)); \ + } while (YYID(0)) + +/*------------------------------------------------. +| Report that the YYRULE is going to be reduced. | +`------------------------------------------------*/ + +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static void yy_reduce_print(YYSTYPE* yyvsp, int yyrule) +#else +static void yy_reduce_print(yyvsp, yyrule) YYSTYPE* yyvsp; +int yyrule; +#endif +{ + int yynrhs = yyr2[yyrule]; + int yyi; + unsigned long int yylno = yyrline[yyrule]; + YYFPRINTF(stderr, "Reducing stack by rule %d (line %lu):\n", yyrule - 1, + yylno); + /* The symbols being reduced. */ + for (yyi = 0; yyi < yynrhs; yyi++) { + YYFPRINTF(stderr, " $%d = ", yyi + 1); + yy_symbol_print(stderr, yyrhs[yyprhs[yyrule] + yyi], + &(yyvsp[(yyi + 1) - (yynrhs)])); + YYFPRINTF(stderr, "\n"); + } +} + +#define YY_REDUCE_PRINT(Rule) \ + do { \ + if (yydebug) \ + yy_reduce_print(yyvsp, Rule); \ + } while (YYID(0)) + +/* Nonzero means print parse trace. It is left uninitialized so that + multiple parsers can coexist. */ +int yydebug; +#else /* !YYDEBUG */ +#define YYDPRINTF(Args) +#define YY_SYMBOL_PRINT(Title, Type, Value, Location) +#define YY_STACK_PRINT(Bottom, Top) +#define YY_REDUCE_PRINT(Rule) +#endif /* !YYDEBUG */ + +/* YYINITDEPTH -- initial size of the parser's stacks. */ +#ifndef YYINITDEPTH +#define YYINITDEPTH 200 +#endif + +/* YYMAXDEPTH -- maximum size the stacks can grow to (effective only + if the built-in stack extension method is used). + + Do not make this value too large; the results are undefined if + YYSTACK_ALLOC_MAXIMUM < YYSTACK_BYTES (YYMAXDEPTH) + evaluated with infinite-precision integer arithmetic. */ + +#ifndef YYMAXDEPTH +#define YYMAXDEPTH 10000 +#endif + +#if YYERROR_VERBOSE + +#ifndef yystrlen +#if defined __GLIBC__ && defined _STRING_H +#define yystrlen strlen +#else +/* Return the length of YYSTR. */ +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static YYSIZE_T yystrlen(const char* yystr) +#else +static YYSIZE_T yystrlen(yystr) const char* yystr; +#endif +{ + YYSIZE_T yylen; + for (yylen = 0; yystr[yylen]; yylen++) + continue; + return yylen; +} +#endif +#endif + +#ifndef yystpcpy +#if defined __GLIBC__ && defined _STRING_H && defined _GNU_SOURCE +#define yystpcpy stpcpy +#else +/* Copy YYSRC to YYDEST, returning the address of the terminating '\0' in + YYDEST. */ +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static char* yystpcpy(char* yydest, const char* yysrc) +#else +static char* yystpcpy(yydest, yysrc) char* yydest; +const char* yysrc; +#endif +{ + char* yyd = yydest; + const char* yys = yysrc; + + while ((*yyd++ = *yys++) != '\0') + continue; + + return yyd - 1; +} +#endif +#endif + +#ifndef yytnamerr +/* Copy to YYRES the contents of YYSTR after stripping away unnecessary + quotes and backslashes, so that it's suitable for yyerror. The + heuristic is that double-quoting is unnecessary unless the string + contains an apostrophe, a comma, or backslash (other than + backslash-backslash). YYSTR is taken from yytname. If YYRES is + null, do not copy; instead, return the length of what the result + would have been. */ +static YYSIZE_T yytnamerr(char* yyres, const char* yystr) { + if (*yystr == '"') { + YYSIZE_T yyn = 0; + char const* yyp = yystr; + + for (;;) + switch (*++yyp) { + case '\'': + case ',': + goto do_not_strip_quotes; + + case '\\': + if (*++yyp != '\\') + goto do_not_strip_quotes; + /* Fall through. */ + default: + if (yyres) + yyres[yyn] = *yyp; + yyn++; + break; + + case '"': + if (yyres) + yyres[yyn] = '\0'; + return yyn; + } + do_not_strip_quotes:; + } + + if (!yyres) + return yystrlen(yystr); + + return yystpcpy(yyres, yystr) - yyres; +} +#endif + +/* Copy into *YYMSG, which is of size *YYMSG_ALLOC, an error message + about the unexpected token YYTOKEN for the state stack whose top is + YYSSP. + + Return 0 if *YYMSG was successfully written. Return 1 if *YYMSG is + not large enough to hold the message. In that case, also set + *YYMSG_ALLOC to the required number of bytes. Return 2 if the + required number of bytes is too large to store. */ +static int yysyntax_error(YYSIZE_T* yymsg_alloc, + char** yymsg, + yytype_int16* yyssp, + int yytoken) { + YYSIZE_T yysize0 = yytnamerr(YY_NULL, yytname[yytoken]); + YYSIZE_T yysize = yysize0; + enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; + /* Internationalized format string. */ + const char* yyformat = YY_NULL; + /* Arguments of yyformat. */ + char const* yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; + /* Number of reported tokens (one for the "unexpected", one per + "expected"). */ + int yycount = 0; + + /* There are many possibilities here to consider: + - Assume YYFAIL is not used. It's too flawed to consider. See + + for details. YYERROR is fine as it does not invoke this + function. + - If this state is a consistent state with a default action, then + the only way this function was invoked is if the default action + is an error action. In that case, don't check for expected + tokens because there are none. + - The only way there can be no lookahead present (in yychar) is if + this state is a consistent state with a default action. Thus, + detecting the absence of a lookahead is sufficient to determine + that there is no unexpected or expected token to report. In that + case, just report a simple "syntax error". + - Don't assume there isn't a lookahead just because this state is a + consistent state with a default action. There might have been a + previous inconsistent state, consistent state with a non-default + action, or user semantic action that manipulated yychar. + - Of course, the expected token list depends on states to have + correct lookahead information, and it depends on the parser not + to perform extra reductions after fetching a lookahead from the + scanner and before detecting a syntax error. Thus, state merging + (from LALR or IELR) and default reductions corrupt the expected + token list. However, the list is correct for canonical LR with + one exception: it will still contain any token that will not be + accepted due to an error action in a later state. + */ + if (yytoken != YYEMPTY) { + int yyn = yypact[*yyssp]; + yyarg[yycount++] = yytname[yytoken]; + if (!yypact_value_is_default(yyn)) { + /* Start YYX at -YYN if negative to avoid negative indexes in + YYCHECK. In other words, skip the first -YYN actions for + this state because they are default actions. */ + int yyxbegin = yyn < 0 ? -yyn : 0; + /* Stay within bounds of both yycheck and yytname. */ + int yychecklim = YYLAST - yyn + 1; + int yyxend = yychecklim < YYNTOKENS ? yychecklim : YYNTOKENS; + int yyx; + + for (yyx = yyxbegin; yyx < yyxend; ++yyx) + if (yycheck[yyx + yyn] == yyx && yyx != YYTERROR && + !yytable_value_is_error(yytable[yyx + yyn])) { + if (yycount == YYERROR_VERBOSE_ARGS_MAXIMUM) { + yycount = 1; + yysize = yysize0; + break; + } + yyarg[yycount++] = yytname[yyx]; + { + YYSIZE_T yysize1 = yysize + yytnamerr(YY_NULL, yytname[yyx]); + if (!(yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + } + } + } + + switch (yycount) { +#define YYCASE_(N, S) \ + case N: \ + yyformat = S; \ + break + YYCASE_(0, YY_("syntax error")); + YYCASE_(1, YY_("syntax error, unexpected %s")); + YYCASE_(2, YY_("syntax error, unexpected %s, expecting %s")); + YYCASE_(3, YY_("syntax error, unexpected %s, expecting %s or %s")); + YYCASE_(4, YY_("syntax error, unexpected %s, expecting %s or %s or %s")); + YYCASE_(5, + YY_("syntax error, unexpected %s, expecting %s or %s or %s or %s")); +#undef YYCASE_ + } + + { + YYSIZE_T yysize1 = yysize + yystrlen(yyformat); + if (!(yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } + + if (*yymsg_alloc < yysize) { + *yymsg_alloc = 2 * yysize; + if (!(yysize <= *yymsg_alloc && *yymsg_alloc <= YYSTACK_ALLOC_MAXIMUM)) + *yymsg_alloc = YYSTACK_ALLOC_MAXIMUM; + return 1; + } + + /* Avoid sprintf, as that infringes on the user's name space. + Don't have undefined behavior even if the translation + produced a string with the wrong number of "%s"s. */ + { + char* yyp = *yymsg; + int yyi = 0; + while ((*yyp = *yyformat) != '\0') + if (*yyp == '%' && yyformat[1] == 's' && yyi < yycount) { + yyp += yytnamerr(yyp, yyarg[yyi++]); + yyformat += 2; + } else { + yyp++; + yyformat++; + } + } + return 0; +} +#endif /* YYERROR_VERBOSE */ + +/*-----------------------------------------------. +| Release the memory associated to this symbol. | +`-----------------------------------------------*/ + +/*ARGSUSED*/ +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +static void yydestruct(const char* yymsg, int yytype, YYSTYPE* yyvaluep) +#else +static void yydestruct(yymsg, yytype, yyvaluep) const char* yymsg; +int yytype; +YYSTYPE* yyvaluep; +#endif +{ + YYUSE(yyvaluep); + + if (!yymsg) + yymsg = "Deleting"; + YY_SYMBOL_PRINT(yymsg, yytype, yyvaluep, yylocationp); + + switch (yytype) { + default: + break; + } +} + +/* The lookahead symbol. */ +int yychar; + +#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +#define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +#define YY_IGNORE_MAYBE_UNINITIALIZED_END +#endif +#ifndef YY_INITIAL_VALUE +#define YY_INITIAL_VALUE(Value) /* Nothing. */ +#endif + +/* The semantic value of the lookahead symbol. */ +YYSTYPE yylval YY_INITIAL_VALUE(yyval_default); + +/* Number of syntax errors so far. */ +int yynerrs; + +/*----------. +| yyparse. | +`----------*/ + +#ifdef YYPARSE_PARAM +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +int yyparse(void* YYPARSE_PARAM) +#else +int yyparse(YYPARSE_PARAM) void* YYPARSE_PARAM; +#endif +#else /* ! YYPARSE_PARAM */ +#if (defined __STDC__ || defined __C99__FUNC__ || defined __cplusplus || \ + defined _MSC_VER) +int yyparse(void) +#else +int yyparse() + +#endif +#endif +{ + int yystate; + /* Number of tokens to shift before error messages enabled. */ + int yyerrstatus; + + /* The stacks and their tools: + `yyss': related to states. + `yyvs': related to semantic values. + + Refer to the stacks through separate pointers, to allow yyoverflow + to reallocate them elsewhere. */ + + /* The state stack. */ + yytype_int16 yyssa[YYINITDEPTH]; + yytype_int16* yyss; + yytype_int16* yyssp; + + /* The semantic value stack. */ + YYSTYPE yyvsa[YYINITDEPTH]; + YYSTYPE* yyvs; + YYSTYPE* yyvsp; + + YYSIZE_T yystacksize; + + int yyn; + int yyresult; + /* Lookahead token as an internal (translated) token number. */ + int yytoken = 0; + /* The variables used to return semantic value and location from the + action routines. */ + YYSTYPE yyval; + +#if YYERROR_VERBOSE + /* Buffer for error messages, and its allocated size. */ + char yymsgbuf[128]; + char* yymsg = yymsgbuf; + YYSIZE_T yymsg_alloc = sizeof yymsgbuf; +#endif + +#define YYPOPSTACK(N) (yyvsp -= (N), yyssp -= (N)) + + /* The number of symbols on the RHS of the reduced rule. + Keep to zero when no symbol should be popped. */ + int yylen = 0; + + yyssp = yyss = yyssa; + yyvsp = yyvs = yyvsa; + yystacksize = YYINITDEPTH; + + YYDPRINTF((stderr, "Starting parse\n")); + + yystate = 0; + yyerrstatus = 0; + yynerrs = 0; + yychar = YYEMPTY; /* Cause a token to be read. */ + goto yysetstate; + + /*------------------------------------------------------------. + | yynewstate -- Push a new state, which is found in yystate. | + `------------------------------------------------------------*/ +yynewstate: + /* In all cases, when you get here, the value and location stacks + have just been pushed. So pushing a state here evens the stacks. */ + yyssp++; + +yysetstate: + *yyssp = yystate; + + if (yyss + yystacksize - 1 <= yyssp) { + /* Get the current used size of the three stacks, in elements. */ + YYSIZE_T yysize = yyssp - yyss + 1; + +#ifdef yyoverflow + { + /* Give user a chance to reallocate the stack. Use copies of + these so that the &'s don't force the real ones into + memory. */ + YYSTYPE* yyvs1 = yyvs; + yytype_int16* yyss1 = yyss; + + /* Each stack pointer address is followed by the size of the + data in use in that stack, in bytes. This used to be a + conditional around just the two extra args, but that might + be undefined if yyoverflow is a macro. */ + yyoverflow(YY_("memory exhausted"), &yyss1, yysize * sizeof(*yyssp), + &yyvs1, yysize * sizeof(*yyvsp), &yystacksize); + + yyss = yyss1; + yyvs = yyvs1; + } +#else /* no yyoverflow */ +#ifndef YYSTACK_RELOCATE + goto yyexhaustedlab; +#else + /* Extend the stack our own way. */ + if (YYMAXDEPTH <= yystacksize) + goto yyexhaustedlab; + yystacksize *= 2; + if (YYMAXDEPTH < yystacksize) + yystacksize = YYMAXDEPTH; + + { + yytype_int16* yyss1 = yyss; + union yyalloc* yyptr = + (union yyalloc*)YYSTACK_ALLOC(YYSTACK_BYTES(yystacksize)); + if (!yyptr) + goto yyexhaustedlab; + YYSTACK_RELOCATE(yyss_alloc, yyss); + YYSTACK_RELOCATE(yyvs_alloc, yyvs); +#undef YYSTACK_RELOCATE + if (yyss1 != yyssa) + YYSTACK_FREE(yyss1); + } +#endif +#endif /* no yyoverflow */ + + yyssp = yyss + yysize - 1; + yyvsp = yyvs + yysize - 1; + + YYDPRINTF((stderr, "Stack size increased to %lu\n", + (unsigned long int)yystacksize)); + + if (yyss + yystacksize - 1 <= yyssp) + YYABORT; + } + + YYDPRINTF((stderr, "Entering state %d\n", yystate)); + + if (yystate == YYFINAL) + YYACCEPT; + + goto yybackup; + +/*-----------. +| yybackup. | +`-----------*/ +yybackup: + + /* Do appropriate processing given the current state. Read a + lookahead token if we need one and don't already have one. */ + + /* First try to decide what to do without reference to lookahead token. */ + yyn = yypact[yystate]; + if (yypact_value_is_default(yyn)) + goto yydefault; + + /* Not known => get a lookahead token if don't already have one. */ + + /* YYCHAR is either YYEMPTY or YYEOF or a valid lookahead symbol. */ + if (yychar == YYEMPTY) { + YYDPRINTF((stderr, "Reading a token: ")); + yychar = YYLEX; + } + + if (yychar <= YYEOF) { + yychar = yytoken = YYEOF; + YYDPRINTF((stderr, "Now at end of input.\n")); + } else { + yytoken = YYTRANSLATE(yychar); + YY_SYMBOL_PRINT("Next token is", yytoken, &yylval, &yylloc); + } + + /* If the proper action on seeing token YYTOKEN is to reduce or to + detect an error, take that action. */ + yyn += yytoken; + if (yyn < 0 || YYLAST < yyn || yycheck[yyn] != yytoken) + goto yydefault; + yyn = yytable[yyn]; + if (yyn <= 0) { + if (yytable_value_is_error(yyn)) + goto yyerrlab; + yyn = -yyn; + goto yyreduce; + } + + /* Count tokens shifted since error; after three, turn off error + status. */ + if (yyerrstatus) + yyerrstatus--; + + /* Shift the lookahead token. */ + YY_SYMBOL_PRINT("Shifting", yytoken, &yylval, &yylloc); + + /* Discard the shifted token. */ + yychar = YYEMPTY; + + yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + goto yynewstate; + +/*-----------------------------------------------------------. +| yydefault -- do the default action for the current state. | +`-----------------------------------------------------------*/ +yydefault: + yyn = yydefact[yystate]; + if (yyn == 0) + goto yyerrlab; + goto yyreduce; + +/*-----------------------------. +| yyreduce -- Do a reduction. | +`-----------------------------*/ +yyreduce: + /* yyn is the number of a rule to reduce with. */ + yylen = yyr2[yyn]; + + /* If YYLEN is nonzero, implement the default value of the action: + `$$ = $1'. + + Otherwise, the following line sets YYVAL to garbage. + This behavior is undocumented and Bison + users should not rely upon it. Assigning to YYVAL + unconditionally makes the parser a bit smaller, and it avoids a + GCC warning that YYVAL may be used uninitialized. */ + yyval = yyvsp[1 - yylen]; + + YY_REDUCE_PRINT(yyn); + switch (yyn) { + case 2: +/* Line 1792 of yacc.c */ +#line 22 "parser.y" + { + parse_t::get_instance()->add_label((yyvsp[(1) - (1)].label_name)); + } break; + + case 3: +/* Line 1792 of yacc.c */ +#line 23 "parser.y" + { + parse_t::get_instance()->add_label((yyvsp[(2) - (2)].label_name)); + } break; + + case 6: +/* Line 1792 of yacc.c */ +#line 29 "parser.y" + { + parse_t::get_instance()->add_vinstr((yyvsp[(1) - (1)].vinstr_name)); + } break; + + case 7: +/* Line 1792 of yacc.c */ +#line 30 "parser.y" + { + parse_t::get_instance()->add_vinstr((yyvsp[(1) - (2)].vinstr_name), + (yyvsp[(2) - (2)].imm_val)); + } break; + + case 8: +/* Line 1792 of yacc.c */ +#line 31 "parser.y" + { + parse_t::get_instance()->add_vinstr((yyvsp[(2) - (2)].vinstr_name)); + } break; + + case 9: +/* Line 1792 of yacc.c */ +#line 32 "parser.y" + { + parse_t::get_instance()->add_vinstr((yyvsp[(2) - (3)].vinstr_name), + (yyvsp[(3) - (3)].imm_val)); + } break; + +/* Line 1792 of yacc.c */ +#line 1373 "parser.tab.cpp" + default: + break; + } + /* User semantic actions sometimes alter yychar, and that requires + that yytoken be updated with the new translation. We take the + approach of translating immediately before every use of yytoken. + One alternative is translating here after every semantic action, + but that translation would be missed if the semantic action invokes + YYABORT, YYACCEPT, or YYERROR immediately after altering yychar or + if it invokes YYBACKUP. In the case of YYABORT or YYACCEPT, an + incorrect destructor might then be invoked immediately. In the + case of YYERROR or YYBACKUP, subsequent parser actions might lead + to an incorrect destructor call or verbose syntax error message + before the lookahead is translated. */ + YY_SYMBOL_PRINT("-> $$ =", yyr1[yyn], &yyval, &yyloc); + + YYPOPSTACK(yylen); + yylen = 0; + YY_STACK_PRINT(yyss, yyssp); + + *++yyvsp = yyval; + + /* Now `shift' the result of the reduction. Determine what state + that goes to, based on the state we popped back to and the rule + number reduced by. */ + + yyn = yyr1[yyn]; + + yystate = yypgoto[yyn - YYNTOKENS] + *yyssp; + if (0 <= yystate && yystate <= YYLAST && yycheck[yystate] == *yyssp) + yystate = yytable[yystate]; + else + yystate = yydefgoto[yyn - YYNTOKENS]; + + goto yynewstate; + +/*------------------------------------. +| yyerrlab -- here on detecting error | +`------------------------------------*/ +yyerrlab: + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = yychar == YYEMPTY ? YYEMPTY : YYTRANSLATE(yychar); + + /* If not already recovering from an error, report this error. */ + if (!yyerrstatus) { + ++yynerrs; +#if !YYERROR_VERBOSE + yyerror((char*)YY_("syntax error")); +#else +#define YYSYNTAX_ERROR yysyntax_error(&yymsg_alloc, &yymsg, yyssp, yytoken) + { + char const* yymsgp = YY_("syntax error"); + int yysyntax_error_status; + yysyntax_error_status = YYSYNTAX_ERROR; + if (yysyntax_error_status == 0) + yymsgp = yymsg; + else if (yysyntax_error_status == 1) { + if (yymsg != yymsgbuf) + YYSTACK_FREE(yymsg); + yymsg = (char*)YYSTACK_ALLOC(yymsg_alloc); + if (!yymsg) { + yymsg = yymsgbuf; + yymsg_alloc = sizeof yymsgbuf; + yysyntax_error_status = 2; + } else { + yysyntax_error_status = YYSYNTAX_ERROR; + yymsgp = yymsg; + } + } + yyerror(yymsgp); + if (yysyntax_error_status == 2) + goto yyexhaustedlab; + } +#undef YYSYNTAX_ERROR +#endif + } + + if (yyerrstatus == 3) { + /* If just tried and failed to reuse lookahead token after an + error, discard it. */ + + if (yychar <= YYEOF) { + /* Return failure if at end of input. */ + if (yychar == YYEOF) + YYABORT; + } else { + yydestruct("Error: discarding", yytoken, &yylval); + yychar = YYEMPTY; + } + } + + /* Else will try to reuse lookahead token after shifting the error + token. */ + goto yyerrlab1; + +/*---------------------------------------------------. +| yyerrorlab -- error raised explicitly by YYERROR. | +`---------------------------------------------------*/ +yyerrorlab: + + /* Pacify compilers like GCC when the user code never invokes + YYERROR and the label yyerrorlab therefore never appears in user + code. */ + if (/*CONSTCOND*/ 0) + goto yyerrorlab; + + /* Do not reclaim the symbols of the rule which action triggered + this YYERROR. */ + YYPOPSTACK(yylen); + yylen = 0; + YY_STACK_PRINT(yyss, yyssp); + yystate = *yyssp; + goto yyerrlab1; + +/*-------------------------------------------------------------. +| yyerrlab1 -- common code for both syntax error and YYERROR. | +`-------------------------------------------------------------*/ +yyerrlab1: + yyerrstatus = 3; /* Each real token shifted decrements this. */ + + for (;;) { + yyn = yypact[yystate]; + if (!yypact_value_is_default(yyn)) { + yyn += YYTERROR; + if (0 <= yyn && yyn <= YYLAST && yycheck[yyn] == YYTERROR) { + yyn = yytable[yyn]; + if (0 < yyn) + break; + } + } + + /* Pop the current state because it cannot handle the error token. */ + if (yyssp == yyss) + YYABORT; + + yydestruct("Error: popping", yystos[yystate], yyvsp); + YYPOPSTACK(1); + yystate = *yyssp; + YY_STACK_PRINT(yyss, yyssp); + } + + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN + *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END + + /* Shift the error token. */ + YY_SYMBOL_PRINT("Shifting", yystos[yyn], yyvsp, yylsp); + + yystate = yyn; + goto yynewstate; + +/*-------------------------------------. +| yyacceptlab -- YYACCEPT comes here. | +`-------------------------------------*/ +yyacceptlab: + yyresult = 0; + goto yyreturn; + +/*-----------------------------------. +| yyabortlab -- YYABORT comes here. | +`-----------------------------------*/ +yyabortlab: + yyresult = 1; + goto yyreturn; + +#if !defined yyoverflow || YYERROR_VERBOSE +/*-------------------------------------------------. +| yyexhaustedlab -- memory exhaustion comes here. | +`-------------------------------------------------*/ +yyexhaustedlab: + yyerror((char*)YY_("memory exhausted")); + yyresult = 2; + /* Fall through. */ +#endif + +yyreturn: + if (yychar != YYEMPTY) { + /* Make sure we have latest lookahead translation. See comments at + user semantic actions for why this is necessary. */ + yytoken = YYTRANSLATE(yychar); + yydestruct("Cleanup: discarding lookahead", yytoken, &yylval); + } + /* Do not reclaim the symbols of the rule which action triggered + this YYABORT or YYACCEPT. */ + YYPOPSTACK(yylen); + YY_STACK_PRINT(yyss, yyssp); + while (yyssp != yyss) { + yydestruct("Cleanup: popping", yystos[*yyssp], yyvsp); + YYPOPSTACK(1); + } +#ifndef yyoverflow + if (yyss != yyssa) + YYSTACK_FREE(yyss); +#endif +#if YYERROR_VERBOSE + if (yymsg != yymsgbuf) + YYSTACK_FREE(yymsg); +#endif + /* Make sure YYID is used. */ + return YYID(yyresult); +} + +/* Line 2055 of yacc.c */ +#line 34 "parser.y" diff --git a/src/parser.tab.h b/src/parser.tab.h new file mode 100644 index 0000000..4c6cbe0 --- /dev/null +++ b/src/parser.tab.h @@ -0,0 +1,91 @@ +/* A Bison parser, made by GNU Bison 2.7. */ + +/* Bison interface for Yacc-like parsers in C + + Copyright (C) 1984, 1989-1990, 2000-2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see . */ + +/* As a special exception, you may create a larger work that contains + part or all of the Bison parser skeleton and distribute that work + under terms of your choice, so long as that work isn't itself a + parser generator using the skeleton or a modified version thereof + as a parser skeleton. Alternatively, if you modify or redistribute + the parser skeleton itself, you may (at your option) remove this + special exception, which will cause the skeleton and the resulting + Bison output files to be licensed under the GNU General Public + License without this special exception. + + This special exception was added by the Free Software Foundation in + version 2.2 of Bison. */ + +#ifndef YY_YY_PARSER_TAB_H_INCLUDED +# define YY_YY_PARSER_TAB_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif + +/* Tokens. */ +#ifndef YYTOKENTYPE +# define YYTOKENTYPE + /* Put the tokens into the symbol table, so that GDB and other debuggers + know about them. */ + enum yytokentype { + LABEL = 258, + VINSTR = 259, + IMM = 260 + }; +#endif + + +#if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED +typedef union YYSTYPE +{ +/* Line 2058 of yacc.c */ +#line 10 "parser.y" + +char vinstr_name[20]; +char label_name[256]; +unsigned long long imm_val; + + +/* Line 2058 of yacc.c */ +#line 69 "parser.tab.h" +} YYSTYPE; +# define YYSTYPE_IS_TRIVIAL 1 +# define yystype YYSTYPE /* obsolescent; will be withdrawn */ +# define YYSTYPE_IS_DECLARED 1 +#endif + +extern YYSTYPE yylval; + +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ + +#endif /* !YY_YY_PARSER_TAB_H_INCLUDED */ diff --git a/src/parser.y b/src/parser.y index b57c91d..3a177c0 100644 --- a/src/parser.y +++ b/src/parser.y @@ -1,6 +1,6 @@ %{ #include -#include "parser.h" +#include int yylex(void); void yyerror(char *); extern int yylineno;