DBT-RISE
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DBT-RISE-TGC
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Merge branch 'develop' into main

This commit is contained in:
Eyck Jentzsch 2024-06-21 08:52:03 +02:00
parent 926a03c346 3fd51cc68c
commit eb99751ad9
24 changed files with 8336 additions and 6176 deletions
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244
CMakeLists.txt
View File

@ -1,8 +1,9 @@
cmake_minimum_required(VERSION 3.12)
cmake_minimum_required(VERSION 3.18)
list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/cmake)
###############################################################################
# ##############################################################################
#
###############################################################################
# ##############################################################################
project(dbt-rise-tgc VERSION 1.0.0)
include(GNUInstallDirs)
@ -14,59 +15,69 @@ find_package(Boost COMPONENTS coroutine REQUIRED)
add_subdirectory(softfloat)
set(LIB_SOURCES
set(LIB_SOURCES
src/iss/plugin/instruction_count.cpp
src/iss/arch/tgc5c.cpp
src/vm/interp/vm_tgc5c.cpp
src/vm/fp_functions.cpp
src/iss/arch/tgc5c.cpp
src/vm/interp/vm_tgc5c.cpp
src/vm/fp_functions.cpp
src/iss/semihosting/semihosting.cpp
)
if(WITH_TCC)
list(APPEND LIB_SOURCES
src/vm/tcc/vm_tgc5c.cpp
list(APPEND LIB_SOURCES
src/vm/tcc/vm_tgc5c.cpp
)
endif()
if(WITH_LLVM)
list(APPEND LIB_SOURCES
src/vm/llvm/vm_tgc5c.cpp
src/vm/llvm/fp_impl.cpp
)
endif()
if(WITH_ASMJIT)
list(APPEND LIB_SOURCES
src/vm/asmjit/vm_tgc5c.cpp
list(APPEND LIB_SOURCES
src/vm/llvm/vm_tgc5c.cpp
src/vm/llvm/fp_impl.cpp
)
endif()
if(WITH_ASMJIT)
list(APPEND LIB_SOURCES
src/vm/asmjit/vm_tgc5c.cpp
)
endif()
# library files
FILE(GLOB GEN_ISS_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/iss/arch/*.cpp)
FILE(GLOB GEN_VM_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/interp/vm_*.cpp)
FILE(GLOB GEN_YAML_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/contrib/instr/*.yaml)
list(APPEND LIB_SOURCES ${GEN_ISS_SOURCES} ${GEN_VM_SOURCES})
foreach(FILEPATH ${GEN_ISS_SOURCES})
get_filename_component(CORE ${FILEPATH} NAME_WE)
string(TOUPPER ${CORE} CORE)
list(APPEND LIB_DEFINES CORE_${CORE})
endforeach()
message(STATUS "Core defines are ${LIB_DEFINES}")
if(WITH_LLVM)
FILE(GLOB LLVM_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/llvm/vm_*.cpp)
list(APPEND LIB_SOURCES ${LLVM_GEN_SOURCES})
FILE(GLOB LLVM_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/llvm/vm_*.cpp)
list(APPEND LIB_SOURCES ${LLVM_GEN_SOURCES})
endif()
if(WITH_TCC)
FILE(GLOB TCC_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/tcc/vm_*.cpp)
list(APPEND LIB_SOURCES ${TCC_GEN_SOURCES})
FILE(GLOB TCC_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/tcc/vm_*.cpp)
list(APPEND LIB_SOURCES ${TCC_GEN_SOURCES})
endif()
if(WITH_ASMJIT)
FILE(GLOB TCC_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/asmjit/vm_*.cpp)
list(APPEND LIB_SOURCES ${TCC_GEN_SOURCES})
FILE(GLOB TCC_GEN_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/vm/asmjit/vm_*.cpp)
list(APPEND LIB_SOURCES ${TCC_GEN_SOURCES})
endif()
if(TARGET yaml-cpp::yaml-cpp)
list(APPEND LIB_SOURCES
src/iss/plugin/cycle_estimate.cpp
src/iss/plugin/instruction_count.cpp
list(APPEND LIB_SOURCES
src/iss/plugin/cycle_estimate.cpp
src/iss/plugin/instruction_count.cpp
)
endif()
# Define the library
add_library(${PROJECT_NAME} SHARED ${LIB_SOURCES})
@ -75,60 +86,67 @@ if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU")
elseif("${CMAKE_CXX_COMPILER_ID}" STREQUAL "MSVC")
target_compile_options(${PROJECT_NAME} PRIVATE /wd4293)
endif()
target_include_directories(${PROJECT_NAME} PUBLIC src)
target_include_directories(${PROJECT_NAME} PUBLIC src-gen)
target_force_link_libraries(${PROJECT_NAME} PRIVATE dbt-rise-core)
# only re-export the include paths
get_target_property(DBT_CORE_INCL dbt-rise-core INTERFACE_INCLUDE_DIRECTORIES)
target_include_directories(${PROJECT_NAME} INTERFACE ${DBT_CORE_INCL})
get_target_property(DBT_CORE_DEFS dbt-rise-core INTERFACE_COMPILE_DEFINITIONS)
if(NOT (DBT_CORE_DEFS STREQUAL DBT_CORE_DEFS-NOTFOUND))
target_compile_definitions(${PROJECT_NAME} INTERFACE ${DBT_CORE_DEFS})
if(NOT(DBT_CORE_DEFS STREQUAL DBT_CORE_DEFS-NOTFOUND))
target_compile_definitions(${PROJECT_NAME} INTERFACE ${DBT_CORE_DEFS})
endif()
target_link_libraries(${PROJECT_NAME} PUBLIC elfio::elfio softfloat scc-util Boost::coroutine)
if(TARGET yaml-cpp::yaml-cpp)
target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_PLUGINS)
target_link_libraries(${PROJECT_NAME} PUBLIC yaml-cpp::yaml-cpp)
target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_PLUGINS)
target_link_libraries(${PROJECT_NAME} PUBLIC yaml-cpp::yaml-cpp)
endif()
if(WITH_LLVM)
find_package(LLVM)
target_compile_definitions(${PROJECT_NAME} PUBLIC ${LLVM_DEFINITIONS})
target_include_directories(${PROJECT_NAME} PUBLIC ${LLVM_INCLUDE_DIRS})
if(BUILD_SHARED_LIBS)
target_link_libraries( ${PROJECT_NAME} PUBLIC ${LLVM_LIBRARIES})
endif()
target_compile_definitions(${PROJECT_NAME} PUBLIC ${LLVM_DEFINITIONS})
target_include_directories(${PROJECT_NAME} PUBLIC ${LLVM_INCLUDE_DIRS})
if(BUILD_SHARED_LIBS)
target_link_libraries(${PROJECT_NAME} PUBLIC ${LLVM_LIBRARIES})
endif()
endif()
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION ${PROJECT_VERSION}
FRAMEWORK FALSE
VERSION ${PROJECT_VERSION}
FRAMEWORK FALSE
)
install(TARGETS ${PROJECT_NAME} COMPONENT ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
)
install(DIRECTORY ${CMAKE_CURRENT_SOURCE_DIR}/incl/iss COMPONENT ${PROJECT_NAME}
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # target directory
FILES_MATCHING # install only matched files
PATTERN "*.h" # select header files
)
DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # target directory
FILES_MATCHING # install only matched files
PATTERN "*.h" # select header files
)
install(FILES ${GEN_YAML_SOURCES} DESTINATION share/tgc-vp)
###############################################################################
# ##############################################################################
#
###############################################################################
# ##############################################################################
set(CMAKE_INSTALL_RPATH $ORIGIN/../${CMAKE_INSTALL_LIBDIR})
project(tgc-sim)
find_package(Boost COMPONENTS program_options thread REQUIRED)
add_executable(${PROJECT_NAME} src/main.cpp)
if(TARGET ${CORE_NAME}_cpp)
list(APPEND TGC_SOURCES ${${CORE_NAME}_OUTPUT_FILES})
else()
@ -140,21 +158,20 @@ else()
endif()
foreach(F IN LISTS TGC_SOURCES)
if (${F} MATCHES ".*/arch/([^/]*)\.cpp")
string(REGEX REPLACE ".*/([^/]*)\.cpp" "\\1" CORE_NAME_LC ${F})
if(${F} MATCHES ".*/arch/([^/]*)\.cpp")
string(REGEX REPLACE ".*/([^/]*)\.cpp" "\\1" CORE_NAME_LC ${F})
string(TOUPPER ${CORE_NAME_LC} CORE_NAME)
target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
endif()
endforeach()
#if(WITH_LLVM)
# target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_LLVM)
# #target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
#endif()
#if(WITH_TCC)
# target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_TCC)
#endif()
# if(WITH_LLVM)
# target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_LLVM)
# #target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
# endif()
# if(WITH_TCC)
# target_compile_definitions(${PROJECT_NAME} PRIVATE WITH_TCC)
# endif()
target_link_libraries(${PROJECT_NAME} PUBLIC dbt-rise-tgc fmt::fmt)
if(TARGET Boost::program_options)
@ -162,78 +179,85 @@ if(TARGET Boost::program_options)
else()
target_link_libraries(${PROJECT_NAME} PUBLIC ${BOOST_program_options_LIBRARY})
endif()
target_link_libraries(${PROJECT_NAME} PUBLIC ${CMAKE_DL_LIBS})
if (Tcmalloc_FOUND)
if(Tcmalloc_FOUND)
target_link_libraries(${PROJECT_NAME} PUBLIC ${Tcmalloc_LIBRARIES})
endif(Tcmalloc_FOUND)
install(TARGETS tgc-sim
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/${PROJECT_NAME} # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
)
if(BUILD_TESTING)
# ... CMake code to create tests ...
add_test(NAME tgc-sim-interp
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend interp)
if(WITH_TCC)
add_test(NAME tgc-sim-tcc
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend tcc)
endif()
if(WITH_LLVM)
add_test(NAME tgc-sim-llvm
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend llvm)
endif()
# ... CMake code to create tests ...
add_test(NAME tgc-sim-interp
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend interp)
if(WITH_TCC)
add_test(NAME tgc-sim-tcc
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend tcc)
endif()
if(WITH_LLVM)
add_test(NAME tgc-sim-llvm
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend llvm)
endif()
if(WITH_ASMJIT)
add_test(NAME tgc-sim-asmjit
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend asmjit)
endif()
add_test(NAME tgc-sim-asmjit
COMMAND tgc-sim -f ${CMAKE_BINARY_DIR}/../../Firmwares/hello-world/hello --backend asmjit)
endif()
endif()
###############################################################################
# ##############################################################################
#
###############################################################################
# ##############################################################################
if(TARGET scc-sysc)
project(dbt-rise-tgc_sc VERSION 1.0.0)
set(LIB_SOURCES
src/sysc/core_complex.cpp
src/sysc/register_tgc_c.cpp
)
FILE(GLOB GEN_SC_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/sysc/register_*.cpp)
list(APPEND LIB_SOURCES ${GEN_SC_SOURCES})
project(dbt-rise-tgc_sc VERSION 1.0.0)
set(LIB_SOURCES
src/sysc/core_complex.cpp
src/sysc/register_tgc_c.cpp
)
FILE(GLOB GEN_SC_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/src-gen/sysc/register_*.cpp)
list(APPEND LIB_SOURCES ${GEN_SC_SOURCES})
add_library(${PROJECT_NAME} ${LIB_SOURCES})
target_compile_definitions(${PROJECT_NAME} PUBLIC WITH_SYSTEMC)
target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
foreach(F IN LISTS TGC_SOURCES)
if (${F} MATCHES ".*/arch/([^/]*)\.cpp")
string(REGEX REPLACE ".*/([^/]*)\.cpp" "\\1" CORE_NAME_LC ${F})
if(${F} MATCHES ".*/arch/([^/]*)\.cpp")
string(REGEX REPLACE ".*/([^/]*)\.cpp" "\\1" CORE_NAME_LC ${F})
string(TOUPPER ${CORE_NAME_LC} CORE_NAME)
target_compile_definitions(${PROJECT_NAME} PRIVATE CORE_${CORE_NAME})
endif()
endforeach()
target_link_libraries(${PROJECT_NAME} PUBLIC dbt-rise-tgc scc-sysc)
# if(WITH_LLVM)
# target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
# endif()
set(LIB_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/sysc/core_complex.h)
# if(WITH_LLVM)
# target_link_libraries(${PROJECT_NAME} PUBLIC ${llvm_libs})
# endif()
set(LIB_HEADERS ${CMAKE_CURRENT_SOURCE_DIR}/src/sysc/core_complex.h)
set_target_properties(${PROJECT_NAME} PROPERTIES
VERSION ${PROJECT_VERSION}
FRAMEWORK FALSE
PUBLIC_HEADER "${LIB_HEADERS}" # specify the public headers
VERSION ${PROJECT_VERSION}
FRAMEWORK FALSE
PUBLIC_HEADER "${LIB_HEADERS}" # specify the public headers
)
install(TARGETS ${PROJECT_NAME} COMPONENT ${PROJECT_NAME}
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/sysc # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
)
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} # static lib
RUNTIME DESTINATION ${CMAKE_INSTALL_BINDIR} # binaries
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR}/sysc # headers for mac (note the different component -> different package)
INCLUDES DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} # headers
)
endif()

2
contrib/instr/TGC5C_instr.yaml
View File

@ -349,7 +349,7 @@ Zifencei:
size: 32
branch: false
delay: 1
RV32M:
RVM:
MUL:
index: 49
encoding: 0b00000010000000000000000000110011

2
gen_input/templates/CORENAME.h.gtl
View File

@ -109,7 +109,7 @@ template <> struct traits<${coreDef.name.toLowerCase()}> {
enum sreg_flag_e { FLAGS };
enum mem_type_e { ${spaces.collect{it.name}.join(', ')} };
enum mem_type_e { ${spaces.collect{it.name}.join(', ')}, IMEM = MEM };
enum class opcode_e {<%instructions.eachWithIndex{instr, index -> %>
${instr.instruction.name} = ${index},<%}%>

157
gen_input/templates/asmjit/CORENAME.cpp.gtl
View File

@ -79,21 +79,36 @@ public:
}
protected:
using vm_base<ARCH>::get_reg_ptr;
using super::get_ptr_for;
using super::get_reg;
using super::get_reg_for;
using super::load_reg_from_mem;
using super::write_reg_to_mem;
using super::gen_ext;
using super::gen_read_mem;
using super::gen_write_mem;
using super::gen_wait;
using super::gen_leave;
using super::gen_operation;
using this_class = vm_impl<ARCH>;
using compile_func = continuation_e (this_class::*)(virt_addr_t&, code_word_t, jit_holder&);
continuation_e gen_single_inst_behavior(virt_addr_t&, unsigned int &, jit_holder&) override;
void gen_block_prologue(jit_holder& jh) override;
void gen_block_epilogue(jit_holder& jh) override;
inline const char *name(size_t index){return traits::reg_aliases.at(index);}
void gen_instr_prologue(jit_holder& jh);
void gen_instr_epilogue(jit_holder& jh);
inline void gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause);
template<unsigned W, typename U, typename S = typename std::make_signed<U>::type>
inline S sext(U from) {
auto mask = (1ULL<<W) - 1;
auto sign_mask = 1ULL<<(W-1);
return (from & mask) | ((from & sign_mask) ? ~mask : 0);
}
#include <vm/asmjit/helper_func.h>
private:
/****************************************************************************
* start opcode definitions
@ -127,16 +142,26 @@ private:
<%instr.fields.eachLine{%>${it}
<%}%>if(this->disass_enabled){
/* generate disass */
<%instr.disass.eachLine{%>
${it}<%}%>
InvokeNode* call_print_disass;
char* mnemonic_ptr = strdup(mnemonic.c_str());
jh.disass_collection.push_back(mnemonic_ptr);
jh.cc.invoke(&call_print_disass, &print_disass, FuncSignatureT<void, void *, uint64_t, char *>());
call_print_disass->setArg(0, jh.arch_if_ptr);
call_print_disass->setArg(1, pc.val);
call_print_disass->setArg(2, mnemonic_ptr);
}
x86::Compiler& cc = jh.cc;
//ideally only do this if necessary (someone / plugin needs it)
cc.mov(jh.pc,PC);
cc.comment(fmt::format("\\n${instr.name}_{:#x}:",pc.val).c_str());
cc.comment(fmt::format("${instr.name}_{:#x}:",pc.val).c_str());
this->gen_sync(jh, PRE_SYNC, ${idx});
pc=pc+ ${instr.length/8};
gen_instr_prologue(jh, pc.val);
cc.comment("\\n//behavior:");
cc.mov(jh.pc, pc.val);
pc = pc+${instr.length/8};
cc.mov(jh.next_pc, pc.val);
gen_instr_prologue(jh);
cc.comment("//behavior:");
/*generate behavior*/
<%instr.behavior.eachLine{%>${it}
<%}%>
@ -149,9 +174,17 @@ private:
* end opcode definitions
****************************************************************************/
continuation_e illegal_intruction(virt_addr_t &pc, code_word_t instr, jit_holder& jh ) {
x86::Compiler& cc = jh.cc;
cc.comment(fmt::format("illegal_intruction{:#x}:",pc.val).c_str());
this->gen_sync(jh, PRE_SYNC, instr_descr.size());
pc = pc + ((instr & 3) == 3 ? 4 : 2);
gen_instr_prologue(jh);
cc.comment("//behavior:");
gen_instr_epilogue(jh);
this->gen_sync(jh, POST_SYNC, instr_descr.size());
return BRANCH;
}
}
//decoding functionality
void populate_decoding_tree(decoding_tree_node* root){
@ -206,11 +239,6 @@ private:
}
};
template <typename CODE_WORD> void debug_fn(CODE_WORD instr) {
volatile CODE_WORD x = instr;
instr = 2 * x;
}
template <typename ARCH> vm_impl<ARCH>::vm_impl() { this(new ARCH()); }
template <typename ARCH>
@ -224,8 +252,7 @@ vm_impl<ARCH>::vm_impl(ARCH &core, unsigned core_id, unsigned cluster_id)
}
template <typename ARCH>
continuation_e
vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt, jit_holder& jh) {
continuation_e vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt, jit_holder& jh) {
enum {TRAP_ID=1<<16};
code_word_t instr = 0;
phys_addr_t paddr(pc);
@ -243,10 +270,78 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt,
f = &this_class::illegal_intruction;
return (this->*f)(pc, instr, jh);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_instr_prologue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("//gen_instr_prologue");
cc.inc(get_ptr_for(jh, traits::ICOUNT));
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
cc.mov(get_ptr_for(jh, traits::PENDING_TRAP), current_trap_state);
} // namespace ${coreDef.name.toLowerCase()}
}
template <typename ARCH>
void vm_impl<ARCH>::gen_instr_epilogue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("//gen_instr_epilogue");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
cc.cmp(current_trap_state, 0);
cc.jne(jh.trap_entry);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_block_prologue(jit_holder& jh){
jh.pc = load_reg_from_mem(jh, traits::PC);
jh.next_pc = load_reg_from_mem(jh, traits::NEXT_PC);
}
template <typename ARCH>
void vm_impl<ARCH>::gen_block_epilogue(jit_holder& jh){
x86::Compiler& cc = jh.cc;
cc.comment("//gen_block_epilogue");
cc.ret(jh.next_pc);
cc.bind(jh.trap_entry);
this->write_back(jh);
this->gen_sync(jh, POST_SYNC, -1);
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_ptr_for(jh, traits::TRAP_STATE));
x86::Gp current_pc = get_reg_for(jh, traits::PC);
cc.mov(current_pc, get_ptr_for(jh, traits::PC));
x86::Gp instr = cc.newInt32("instr");
cc.mov(instr, 0); // FIXME:this is not correct
cc.comment("//enter trap call;");
InvokeNode* call_enter_trap;
cc.invoke(&call_enter_trap, &enter_trap, FuncSignatureT<uint64_t, void*, uint64_t, uint64_t, uint64_t>());
call_enter_trap->setArg(0, jh.arch_if_ptr);
call_enter_trap->setArg(1, current_trap_state);
call_enter_trap->setArg(2, current_pc);
call_enter_trap->setArg(3, instr);
x86::Gp current_next_pc = get_reg_for(jh, traits::NEXT_PC);
cc.mov(current_next_pc, get_ptr_for(jh, traits::NEXT_PC));
cc.mov(jh.next_pc, current_next_pc);
cc.mov(get_ptr_for(jh, traits::LAST_BRANCH), std::numeric_limits<uint32_t>::max());
cc.ret(jh.next_pc);
}
template <typename ARCH>
inline void vm_impl<ARCH>::gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause) {
auto& cc = jh.cc;
cc.comment("//gen_raise");
auto tmp1 = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(tmp1, 0x80ULL << 24 | (cause << 16) | trap_id);
cc.mov(get_ptr_for(jh, traits::TRAP_STATE), tmp1);
cc.mov(jh.next_pc, std::numeric_limits<uint32_t>::max());
}
} // namespace tgc5c
template <>
std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreDef.name.toLowerCase()} *core, unsigned short port, bool dump) {
@ -257,22 +352,30 @@ std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreD
} // namespace asmjit
} // namespace iss
#include <iss/factory.h>
#include <iss/arch/riscv_hart_m_p.h>
#include <iss/arch/riscv_hart_mu_p.h>
#include <iss/factory.h>
namespace iss {
namespace {
volatile std::array<bool, 2> dummy = {
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|asmjit", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|asmjit", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_m_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto* vm = new asmjit::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
auto vm = new asmjit::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
}),
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|asmjit", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|asmjit", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_mu_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto* vm = new asmjit::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
auto vm = new asmjit::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
})
};

14
gen_input/templates/interp/CORENAME.cpp.gtl
View File

@ -357,22 +357,30 @@ std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreD
} // namespace interp
} // namespace iss
#include <iss/factory.h>
#include <iss/arch/riscv_hart_m_p.h>
#include <iss/arch/riscv_hart_mu_p.h>
#include <iss/factory.h>
namespace iss {
namespace {
volatile std::array<bool, 2> dummy = {
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|interp", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|interp", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_m_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto vm = new interp::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<semihosting_cb_t<arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
}),
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|interp", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|interp", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_mu_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto vm = new interp::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<semihosting_cb_t<arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
})
};

57
gen_input/templates/llvm/CORENAME.cpp.gtl
View File

@ -99,16 +99,11 @@ protected:
std::tuple<continuation_e, BasicBlock *> gen_single_inst_behavior(virt_addr_t &, unsigned int &, BasicBlock *) override;
void gen_leave_behavior(BasicBlock *leave_blk) override;
void gen_raise_trap(uint16_t trap_id, uint16_t cause);
void gen_leave_trap(unsigned lvl);
void gen_wait(unsigned type);
void gen_trap_behavior(BasicBlock *) override;
void gen_trap_check(BasicBlock *bb);
void gen_instr_epilogue(BasicBlock *bb);
inline Value *gen_reg_load(unsigned i, unsigned level = 0) {
return this->builder.CreateLoad(this->get_typeptr(i), get_reg_ptr(i), false);
@ -162,20 +157,22 @@ private:
/* instruction definitions */<%instructions.eachWithIndex{instr, idx -> %>
/* instruction ${idx}: ${instr.name} */
std::tuple<continuation_e, BasicBlock*> __${generator.functionName(instr.name)}(virt_addr_t& pc, code_word_t instr, BasicBlock* bb){
bb->setName(fmt::format("${instr.name}_0x{:X}",pc.val));
this->gen_sync(PRE_SYNC,${idx});
uint64_t PC = pc.val;
<%instr.fields.eachLine{%>${it}
<%}%>if(this->disass_enabled){
/* generate console output when executing the command */<%instr.disass.eachLine{%>
${it}<%}%>
}
bb->setName(fmt::format("${instr.name}_0x{:X}",pc.val));
this->gen_sync(PRE_SYNC,${idx});
auto cur_pc_val = this->gen_const(32,pc.val);
pc=pc+ ${instr.length/8};
this->gen_set_pc(pc, traits::NEXT_PC);
/*generate behavior*/
<%instr.behavior.eachLine{%>${it}
<%}%>
this->gen_trap_check(bb);
this->gen_instr_epilogue(bb);
this->gen_sync(POST_SYNC, ${idx});
this->builder.CreateBr(bb);
return returnValue;
@ -195,7 +192,7 @@ private:
pc = pc + ((instr & 3) == 3 ? 4 : 2);
this->gen_raise_trap(0, 2); // illegal instruction trap
this->gen_sync(iss::POST_SYNC, instr_descr.size());
this->gen_trap_check(this->leave_blk);
this->gen_instr_epilogue(this->leave_blk);
return std::make_tuple(BRANCH, nullptr);
}
//decoding functionality
@ -301,18 +298,21 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt,
return (this->*f)(pc, instr, this_block);
}
template <typename ARCH> void vm_impl<ARCH>::gen_leave_behavior(BasicBlock *leave_blk) {
template <typename ARCH>
void vm_impl<ARCH>::gen_leave_behavior(BasicBlock *leave_blk) {
this->builder.SetInsertPoint(leave_blk);
this->builder.CreateRet(this->builder.CreateLoad(this->get_typeptr(traits::NEXT_PC),get_reg_ptr(traits::NEXT_PC), false));
}
template <typename ARCH> void vm_impl<ARCH>::gen_raise_trap(uint16_t trap_id, uint16_t cause) {
template <typename ARCH>
void vm_impl<ARCH>::gen_raise_trap(uint16_t trap_id, uint16_t cause) {
auto *TRAP_val = this->gen_const(32, 0x80 << 24 | (cause << 16) | trap_id);
this->builder.CreateStore(TRAP_val, get_reg_ptr(traits::TRAP_STATE), true);
this->builder.CreateStore(this->gen_const(32U, std::numeric_limits<uint32_t>::max()), get_reg_ptr(traits::LAST_BRANCH), false);
}
template <typename ARCH> void vm_impl<ARCH>::gen_leave_trap(unsigned lvl) {
template <typename ARCH>
void vm_impl<ARCH>::gen_leave_trap(unsigned lvl) {
std::vector<Value *> args{ this->core_ptr, ConstantInt::get(getContext(), APInt(64, lvl)) };
this->builder.CreateCall(this->mod->getFunction("leave_trap"), args);
auto *PC_val = this->gen_read_mem(traits::CSR, (lvl << 8) + 0x41, traits::XLEN / 8);
@ -320,12 +320,14 @@ template <typename ARCH> void vm_impl<ARCH>::gen_leave_trap(unsigned lvl) {
this->builder.CreateStore(this->gen_const(32U, std::numeric_limits<uint32_t>::max()), get_reg_ptr(traits::LAST_BRANCH), false);
}
template <typename ARCH> void vm_impl<ARCH>::gen_wait(unsigned type) {
template <typename ARCH>
void vm_impl<ARCH>::gen_wait(unsigned type) {
std::vector<Value *> args{ this->core_ptr, ConstantInt::get(getContext(), APInt(64, type)) };
this->builder.CreateCall(this->mod->getFunction("wait"), args);
}
template <typename ARCH> void vm_impl<ARCH>::gen_trap_behavior(BasicBlock *trap_blk) {
template <typename ARCH>
void vm_impl<ARCH>::gen_trap_behavior(BasicBlock *trap_blk) {
this->builder.SetInsertPoint(trap_blk);
this->gen_sync(POST_SYNC, -1); //TODO get right InstrId
auto *trap_state_val = this->builder.CreateLoad(this->get_typeptr(traits::TRAP_STATE), get_reg_ptr(traits::TRAP_STATE), true);
@ -338,7 +340,8 @@ template <typename ARCH> void vm_impl<ARCH>::gen_trap_behavior(BasicBlock *trap_
this->builder.CreateRet(trap_addr_val);
}
template <typename ARCH> inline void vm_impl<ARCH>::gen_trap_check(BasicBlock *bb) {
template <typename ARCH>
void vm_impl<ARCH>::gen_instr_epilogue(BasicBlock *bb) {
auto* target_bb = BasicBlock::Create(this->mod->getContext(), "", this->func, bb);
auto *v = this->builder.CreateLoad(this->get_typeptr(traits::TRAP_STATE), get_reg_ptr(traits::TRAP_STATE), true);
this->gen_cond_branch(this->builder.CreateICmp(
@ -359,22 +362,30 @@ std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreD
} // namespace llvm
} // namespace iss
#include <iss/factory.h>
#include <iss/arch/riscv_hart_m_p.h>
#include <iss/arch/riscv_hart_mu_p.h>
#include <iss/factory.h>
namespace iss {
namespace {
volatile std::array<bool, 2> dummy = {
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|llvm", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|llvm", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_m_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto* vm = new llvm::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
auto vm = new llvm::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t*)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
}),
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|llvm", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|llvm", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_mu_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto* vm = new llvm::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
auto vm = new llvm::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t*)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
})
};

16
gen_input/templates/tcc/CORENAME.cpp.gtl
View File

@ -292,7 +292,7 @@ vm_impl<ARCH>::gen_single_inst_behavior(virt_addr_t &pc, unsigned int &inst_cnt,
template <typename ARCH> void vm_impl<ARCH>::gen_raise_trap(tu_builder& tu, uint16_t trap_id, uint16_t cause) {
tu(" *trap_state = {:#x};", 0x80 << 24 | (cause << 16) | trap_id);
tu.store(traits::LAST_BRANCH, tu.constant(std::numeric_limits<uint32_t>::max(), 32));
tu.store(traits::NEXT_PC, tu.constant(std::numeric_limits<uint32_t>::max(), 32));
}
template <typename ARCH> void vm_impl<ARCH>::gen_leave_trap(tu_builder& tu, unsigned lvl) {
@ -323,22 +323,30 @@ std::unique_ptr<vm_if> create<arch::${coreDef.name.toLowerCase()}>(arch::${coreD
} // namesapce tcc
} // namespace iss
#include <iss/factory.h>
#include <iss/arch/riscv_hart_m_p.h>
#include <iss/arch/riscv_hart_mu_p.h>
#include <iss/factory.h>
namespace iss {
namespace {
volatile std::array<bool, 2> dummy = {
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|tcc", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|m_p|tcc", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_m_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto vm = new tcc::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
}),
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|tcc", [](unsigned port, void*) -> std::tuple<cpu_ptr, vm_ptr>{
core_factory::instance().register_creator("${coreDef.name.toLowerCase()}|mu_p|tcc", [](unsigned port, void* init_data) -> std::tuple<cpu_ptr, vm_ptr>{
auto* cpu = new iss::arch::riscv_hart_mu_p<iss::arch::${coreDef.name.toLowerCase()}>();
auto vm = new tcc::${coreDef.name.toLowerCase()}::vm_impl<arch::${coreDef.name.toLowerCase()}>(*cpu, false);
if (port != 0) debugger::server<debugger::gdb_session>::run_server(vm, port);
if(init_data){
auto* cb = reinterpret_cast<std::function<void(arch_if*, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t, arch::traits<arch::${coreDef.name.toLowerCase()}>::reg_t)>*>(init_data);
cpu->set_semihosting_callback(*cb);
}
return {cpu_ptr{cpu}, vm_ptr{vm}};
})
};

4
softfloat/CMakeLists.txt
View File

@ -327,7 +327,7 @@ set(OTHERS
set(LIB_SOURCES ${PRIMITIVES} ${SPECIALIZE} ${OTHERS})
add_library(softfloat ${LIB_SOURCES})
add_library(softfloat STATIC ${LIB_SOURCES})
set_property(TARGET softfloat PROPERTY C_STANDARD 99)
target_compile_definitions(softfloat PRIVATE
SOFTFLOAT_ROUND_ODD
@ -347,7 +347,7 @@ set_target_properties(softfloat PROPERTIES
install(TARGETS softfloat
EXPORT ${PROJECT_NAME}Targets # for downstream dependencies
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs # static lib
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR}/static COMPONENT libs # static lib
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs # shared lib
FRAMEWORK DESTINATION ${CMAKE_INSTALL_LIBDIR} COMPONENT libs # for mac
PUBLIC_HEADER DESTINATION ${CMAKE_INSTALL_INCLUDEDIR} COMPONENT devel # headers for mac (note the different component -> different package)

63
src/iss/arch/riscv_hart_common.h
View File

@ -35,8 +35,14 @@
#ifndef _RISCV_HART_COMMON
#define _RISCV_HART_COMMON
#include "iss/arch_if.h"
#include <cstdint>
#include <elfio/elfio.hpp>
#include <fmt/format.h>
#include <iss/arch_if.h>
#include <iss/log_categories.h>
#include <string>
#include <unordered_map>
#include <util/logging.h>
namespace iss {
namespace arch {
@ -296,6 +302,61 @@ inline void write_reg_uint32(uint64_t offs, uint32_t& reg, const uint8_t* const
break;
}
}
struct riscv_hart_common {
riscv_hart_common(){};
~riscv_hart_common(){};
std::unordered_map<std::string, uint64_t> symbol_table;
std::unordered_map<std::string, uint64_t> get_sym_table(std::string name) {
if(!symbol_table.empty())
return symbol_table;
FILE* fp = fopen(name.c_str(), "r");
if(fp) {
std::array<char, 5> buf;
auto n = fread(buf.data(), 1, 4, fp);
fclose(fp);
if(n != 4)
throw std::runtime_error("input file has insufficient size");
buf[4] = 0;
if(strcmp(buf.data() + 1, "ELF") == 0) {
// Create elfio reader
ELFIO::elfio reader;
// Load ELF data
if(!reader.load(name))
throw std::runtime_error("could not process elf file");
// check elf properties
if(reader.get_type() != ET_EXEC)
throw std::runtime_error("wrong elf type in file");
if(reader.get_machine() != EM_RISCV)
throw std::runtime_error("wrong elf machine in file");
const auto sym_sec = reader.sections[".symtab"];
if(SHT_SYMTAB == sym_sec->get_type() || SHT_DYNSYM == sym_sec->get_type()) {
ELFIO::symbol_section_accessor symbols(reader, sym_sec);
auto sym_no = symbols.get_symbols_num();
std::string name;
ELFIO::Elf64_Addr value = 0;
ELFIO::Elf_Xword size = 0;
unsigned char bind = 0;
unsigned char type = 0;
ELFIO::Elf_Half section = 0;
unsigned char other = 0;
for(auto i = 0U; i < sym_no; ++i) {
symbols.get_symbol(i, name, value, size, bind, type, section, other);
if(name != "") {
this->symbol_table[name] = value;
#ifndef NDEBUG
CPPLOG(DEBUG) << "Found Symbol " << name;
#endif
}
}
}
return symbol_table;
}
throw std::runtime_error(fmt::format("memory load file {} is not a valid elf file", name));
} else
throw std::runtime_error(fmt::format("memory load file not found, check if {} is a valid file", name));
};
};
} // namespace arch
} // namespace iss

120
src/iss/arch/riscv_hart_m_p.h
View File

@ -40,6 +40,7 @@
#include "iss/log_categories.h"
#include "iss/vm_if.h"
#include "riscv_hart_common.h"
#include <stdexcept>
#ifndef FMT_HEADER_ONLY
#define FMT_HEADER_ONLY
#endif
@ -55,6 +56,8 @@
#include <util/ities.h>
#include <util/sparse_array.h>
#include <iss/semihosting/semihosting.h>
#if defined(__GNUC__)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
@ -66,7 +69,7 @@
namespace iss {
namespace arch {
template <typename BASE, features_e FEAT = FEAT_NONE> class riscv_hart_m_p : public BASE {
template <typename BASE, features_e FEAT = FEAT_NONE> class riscv_hart_m_p : public BASE, public riscv_hart_common {
protected:
const std::array<const char, 4> lvl = {{'U', 'S', 'H', 'M'}};
const std::array<const char*, 16> trap_str = {{""
@ -290,6 +293,8 @@ public:
void set_irq_num(unsigned i) { mcause_max_irq = 1 << util::ilog2(i); }
void set_semihosting_callback(semihosting_cb_t<reg_t> cb) { semihosting_cb = cb; };
protected:
struct riscv_instrumentation_if : public iss::instrumentation_if {
@ -322,6 +327,8 @@ protected:
unsigned get_reg_size(unsigned num) override { return traits<BASE>::reg_bit_widths[num]; }
std::unordered_map<std::string, uint64_t> get_symbol_table(std::string name) override { return arch.get_sym_table(name); }
riscv_hart_m_p<BASE, FEAT>& arch;
};
@ -344,9 +351,11 @@ protected:
reg_t fault_data;
uint64_t tohost = tohost_dflt;
uint64_t fromhost = fromhost_dflt;
unsigned to_host_wr_cnt = 0;
bool tohost_lower_written = false;
riscv_instrumentation_if instr_if;
semihosting_cb_t<reg_t> semihosting_cb;
using mem_type = util::sparse_array<uint8_t, 1ULL << 32>;
using csr_type = util::sparse_array<typename traits<BASE>::reg_t, 1ULL << 12, 12>;
using csr_page_type = typename csr_type::page_type;
@ -419,6 +428,7 @@ protected:
feature_config cfg;
unsigned mcause_max_irq{(FEAT & features_e::FEAT_CLIC) ? std::max(16U, static_cast<unsigned>(traits<BASE>::CLIC_NUM_IRQ)) : 16U};
inline bool debug_mode_active() { return this->reg.PRIV & 0x4; }
std::pair<std::function<mem_read_f>, std::function<mem_write_f>> replace_mem_access(std::function<mem_read_f> rd,
std::function<mem_write_f> wr) {
std::pair<std::function<mem_read_f>, std::function<mem_write_f>> ret{hart_mem_rd_delegate, hart_mem_wr_delegate};
@ -563,6 +573,12 @@ riscv_hart_m_p<BASE, FEAT>::riscv_hart_m_p(feature_config cfg)
}
template <typename BASE, features_e FEAT> std::pair<uint64_t, bool> riscv_hart_m_p<BASE, FEAT>::load_file(std::string name, int type) {
get_sym_table(name);
try {
tohost = symbol_table.at("tohost");
fromhost = symbol_table.at("fromhost");
} catch(std::out_of_range& e) {
}
FILE* fp = fopen(name.c_str(), "r");
if(fp) {
std::array<char, 5> buf;
@ -593,31 +609,11 @@ template <typename BASE, features_e FEAT> std::pair<uint64_t, bool> riscv_hart_m
auto res = this->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_WRITE, traits<BASE>::MEM,
pseg->get_physical_address(), fsize, reinterpret_cast<const uint8_t* const>(seg_data));
if(res != iss::Ok)
LOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
CPPLOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
}
}
for(const auto sec : reader.sections) {
if(sec->get_name() == ".symtab") {
if(SHT_SYMTAB == sec->get_type() || SHT_DYNSYM == sec->get_type()) {
ELFIO::symbol_section_accessor symbols(reader, sec);
auto sym_no = symbols.get_symbols_num();
std::string name;
ELFIO::Elf64_Addr value = 0;
ELFIO::Elf_Xword size = 0;
unsigned char bind = 0;
unsigned char type = 0;
ELFIO::Elf_Half section = 0;
unsigned char other = 0;
for(auto i = 0U; i < sym_no; ++i) {
symbols.get_symbol(i, name, value, size, bind, type, section, other);
if(name == "tohost") {
tohost = value;
} else if(name == "fromhost") {
fromhost = value;
}
}
}
} else if(sec->get_name() == ".tohost") {
if(sec->get_name() == ".tohost") {
tohost = sec->get_address();
fromhost = tohost + 0x40;
}
@ -647,11 +643,11 @@ iss::status riscv_hart_m_p<BASE, FEAT>::read(const address_type type, const acce
const unsigned length, uint8_t* const data) {
#ifndef NDEBUG
if(access && iss::access_type::DEBUG) {
LOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
} else if(access && iss::access_type::FETCH) {
LOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
} else {
LOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
}
#endif
try {
@ -733,23 +729,23 @@ iss::status riscv_hart_m_p<BASE, FEAT>::write(const address_type type, const acc
const char* prefix = (access && iss::access_type::DEBUG) ? "debug " : "";
switch(length) {
case 8:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 4:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 2:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 1:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
default:
LOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
}
#endif
try {
@ -784,7 +780,7 @@ iss::status riscv_hart_m_p<BASE, FEAT>::write(const address_type type, const acc
res = write_mem(phys_addr, length, data);
}
if(unlikely(res != iss::Ok && (access & access_type::DEBUG) == 0)) {
this->reg.trap_state = (1UL << 31) | (7 << 16); // issue trap 7 (Store/AMO access fault)
this->reg.trap_state = (1UL << 31) | (7UL << 16); // issue trap 7 (Store/AMO access fault)
fault_data = addr;
}
return res;
@ -801,7 +797,7 @@ iss::status riscv_hart_m_p<BASE, FEAT>::write(const address_type type, const acc
case 0x10023000: // UART1 base, TXFIFO reg
uart_buf << (char)data[0];
if(((char)data[0]) == '\n' || data[0] == 0) {
// LOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
// CPPLOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
// '"<<uart_buf.str()<<"'";
std::cout << uart_buf.str();
uart_buf.str("");
@ -1098,9 +1094,10 @@ iss::status riscv_hart_m_p<BASE, FEAT>::read_mem(phys_addr_t paddr, unsigned len
template <typename BASE, features_e FEAT>
iss::status riscv_hart_m_p<BASE, FEAT>::write_mem(phys_addr_t paddr, unsigned length, const uint8_t* const data) {
switch(paddr.val) {
// TODO remove UART, Peripherals should not be part of the ISS
case 0xFFFF0000: // UART0 base, TXFIFO reg
if(((char)data[0]) == '\n' || data[0] == 0) {
LOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
uart_buf.str("");
} else if(((char)data[0]) != '\r')
uart_buf << (char)data[0];
@ -1115,36 +1112,34 @@ iss::status riscv_hart_m_p<BASE, FEAT>::write_mem(phys_addr_t paddr, unsigned le
auto tohost_lower = (traits<BASE>::XLEN == 32 && paddr.val == tohost) || (traits<BASE>::XLEN == 64 && paddr.val == tohost);
if(tohost_lower || tohost_upper) {
uint64_t hostvar = *reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask));
if(tohost_upper || (tohost_lower && to_host_wr_cnt > 0)) {
// in case of 32 bit system, two writes to tohost are needed, only evaluate on the second (high) write
if(tohost_upper && (tohost_lower || tohost_lower_written)) {
switch(hostvar >> 48) {
case 0:
if(hostvar != 0x1) {
LOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
} else {
LOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
}
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = hostvar;
#ifndef WITH_TCC
throw(iss::simulation_stopped(hostvar));
#endif
break;
case 0x0101: {
char c = static_cast<char>(hostvar & 0xff);
if(c == '\n' || c == 0) {
LOG(INFO) << "tohost send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "tohost send '" << uart_buf.str() << "'";
uart_buf.str("");
} else
uart_buf << c;
to_host_wr_cnt = 0;
} break;
default:
break;
}
tohost_lower_written = false;
} else if(tohost_lower)
to_host_wr_cnt++;
tohost_lower_written = true;
} else if((traits<BASE>::XLEN == 32 && paddr.val == fromhost + 4) || (traits<BASE>::XLEN == 64 && paddr.val == fromhost)) {
uint64_t fhostvar = *reinterpret_cast<uint64_t*>(p.data() + (fromhost & mem.page_addr_mask));
*reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask)) = fhostvar;
@ -1253,6 +1248,31 @@ template <typename BASE, features_e FEAT> uint64_t riscv_hart_m_p<BASE, FEAT>::e
} else {
csr[mtval] = addr;
}
if(semihosting_cb) {
// Check for semihosting call
phys_addr_t p_addr(access_type::DEBUG_READ, traits<BASE>::MEM, addr - 4);
std::array<uint8_t, 8> data;
// check for SLLI_X0_X0_0X1F and SRAI_X0_X0_0X07
this->read_mem(p_addr, 4, data.data());
p_addr.val += 8;
this->read_mem(p_addr, 4, data.data() + 4);
const std::array<uint8_t, 8> ref_data = {0x13, 0x10, 0xf0, 0x01, 0x13, 0x50, 0x70, 0x40};
if(data == ref_data) {
this->reg.NEXT_PC = addr + 8;
std::array<char, 32> buffer;
#if defined(_MSC_VER)
sprintf(buffer.data(), "0x%016llx", addr);
#else
sprintf(buffer.data(), "0x%016lx", addr);
#endif
CLOG(INFO, disass) << "Semihosting call at address " << buffer.data() << " occurred ";
semihosting_cb(this, &(this->reg.X10) /*a0*/, &(this->reg.X11) /*a1*/);
return this->reg.NEXT_PC;
}
}
break;
case 4:
case 6:

90
src/iss/arch/riscv_hart_msu_vp.h
View File

@ -55,6 +55,8 @@
#include <util/ities.h>
#include <util/sparse_array.h>
#include <iss/semihosting/semihosting.h>
#if defined(__GNUC__)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
@ -66,7 +68,7 @@
namespace iss {
namespace arch {
template <typename BASE> class riscv_hart_msu_vp : public BASE {
template <typename BASE> class riscv_hart_msu_vp : public BASE, public riscv_hart_common {
protected:
const std::array<const char, 4> lvl = {{'U', 'S', 'H', 'M'}};
const std::array<const char*, 16> trap_str = {{""
@ -341,6 +343,8 @@ public:
void set_irq_num(unsigned i) { mcause_max_irq = 1 << util::ilog2(i); }
void set_semihosting_callback(std::function<void(arch_if*, reg_t, reg_t)>& cb) { semihosting_cb = cb; };
protected:
struct riscv_instrumentation_if : public iss::instrumentation_if {
@ -373,6 +377,8 @@ protected:
unsigned get_reg_size(unsigned num) override { return traits<BASE>::reg_bit_widths[num]; }
std::unordered_map<std::string, uint64_t> get_symbol_table(std::string name) override { return arch.get_sym_table(name); }
riscv_hart_msu_vp<BASE>& arch;
};
@ -395,9 +401,11 @@ protected:
std::array<vm_info, 2> vm;
uint64_t tohost = tohost_dflt;
uint64_t fromhost = fromhost_dflt;
unsigned to_host_wr_cnt = 0;
bool tohost_lower_written = false;
riscv_instrumentation_if instr_if;
std::function<void(arch_if*, reg_t, reg_t)> semihosting_cb;
using mem_type = util::sparse_array<uint8_t, 1ULL << 32>;
using csr_type = util::sparse_array<typename traits<BASE>::reg_t, 1ULL << 12, 12>;
using csr_page_type = typename csr_type::page_type;
@ -585,7 +593,7 @@ template <typename BASE> std::pair<uint64_t, bool> riscv_hart_msu_vp<BASE>::load
auto res = this->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_WRITE, traits<BASE>::MEM,
pseg->get_physical_address(), fsize, reinterpret_cast<const uint8_t* const>(seg_data));
if(res != iss::Ok)
LOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
CPPLOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
}
}
for(const auto sec : reader.sections) {
@ -626,11 +634,11 @@ iss::status riscv_hart_msu_vp<BASE>::read(const address_type type, const access_
const unsigned length, uint8_t* const data) {
#ifndef NDEBUG
if(access && iss::access_type::DEBUG) {
LOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
} else if(access && iss::access_type::FETCH) {
LOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
} else {
LOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
}
#endif
try {
@ -720,23 +728,23 @@ iss::status riscv_hart_msu_vp<BASE>::write(const address_type type, const access
const char* prefix = (access && iss::access_type::DEBUG) ? "debug " : "";
switch(length) {
case 8:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 4:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 2:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 1:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
default:
LOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
}
#endif
try {
@ -781,7 +789,7 @@ iss::status riscv_hart_msu_vp<BASE>::write(const address_type type, const access
case 0x10023000: // UART1 base, TXFIFO reg
uart_buf << (char)data[0];
if(((char)data[0]) == '\n' || data[0] == 0) {
// LOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
// CPPLOG(INFO)<<"UART"<<((paddr.val>>16)&0x3)<<" send
// '"<<uart_buf.str()<<"'";
std::cout << uart_buf.str();
uart_buf.str("");
@ -1077,7 +1085,7 @@ template <typename BASE> iss::status riscv_hart_msu_vp<BASE>::write_mem(phys_add
switch(paddr.val) {
case 0xFFFF0000: // UART0 base, TXFIFO reg
if(((char)data[0]) == '\n' || data[0] == 0) {
LOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
uart_buf.str("");
} else if(((char)data[0]) != '\r')
uart_buf << (char)data[0];
@ -1092,34 +1100,37 @@ template <typename BASE> iss::status riscv_hart_msu_vp<BASE>::write_mem(phys_add
auto tohost_lower = (traits<BASE>::XLEN == 32 && paddr.val == tohost) || (traits<BASE>::XLEN == 64 && paddr.val == tohost);
if(tohost_lower || tohost_upper) {
uint64_t hostvar = *reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask));
if(tohost_upper || (tohost_lower && to_host_wr_cnt > 0)) {
// in case of 32 bit system, two writes to tohost are needed, only evaluate on the second (high) write
if(tohost_upper && (tohost_lower || tohost_lower_written)) {
switch(hostvar >> 48) {
case 0:
if(hostvar != 0x1) {
LOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
} else {
LOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
}
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = hostvar;
#ifndef WITH_TCC
throw(iss::simulation_stopped(hostvar));
#endif
break;
// throw(iss::simulation_stopped(hostvar));
case 0x0101: {
char c = static_cast<char>(hostvar & 0xff);
if(c == '\n' || c == 0) {
LOG(INFO) << "tohost send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "tohost send '" << uart_buf.str() << "'";
uart_buf.str("");
} else
uart_buf << c;
to_host_wr_cnt = 0;
} break;
default:
break;
}
tohost_lower_written = false;
} else if(tohost_lower)
to_host_wr_cnt++;
tohost_lower_written = true;
} else if((traits<BASE>::XLEN == 32 && paddr.val == fromhost + 4) || (traits<BASE>::XLEN == 64 && paddr.val == fromhost)) {
uint64_t fhostvar = *reinterpret_cast<uint64_t*>(p.data() + (fromhost & mem.page_addr_mask));
*reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask)) = fhostvar;
@ -1304,6 +1315,31 @@ template <typename BASE> uint64_t riscv_hart_msu_vp<BASE>::enter_trap(uint64_t f
// csr[dpc] = addr;
// csr[dcsr] = (csr[dcsr] & ~0x1c3) | (1<<6) | PRIV_M; //FIXME: cause should not be 4 (stepi)
csr[utval | (new_priv << 8)] = addr;
if(semihosting_cb) {
// Check for semihosting call
phys_addr_t p_addr(access_type::DEBUG_READ, traits<BASE>::MEM, addr - 4);
std::array<uint8_t, 8> data;
// check for SLLI_X0_X0_0X1F and SRAI_X0_X0_0X07
this->read_mem(p_addr, 4, data.data());
p_addr.val += 8;
this->read_mem(p_addr, 4, data.data() + 4);
const std::array<uint8_t, 8> ref_data = {0x13, 0x10, 0xf0, 0x01, 0x13, 0x50, 0x70, 0x40};
if(data == ref_data) {
this->reg.NEXT_PC = addr + 8;
std::array<char, 32> buffer;
#if defined(_MSC_VER)
sprintf(buffer.data(), "0x%016llx", addr);
#else
sprintf(buffer.data(), "0x%016lx", addr);
#endif
CLOG(INFO, disass) << "Semihosting call at address " << buffer.data() << " occurred ";
semihosting_callback(this, this->reg.X10 /*a0*/, this->reg.X11 /*a1*/);
return this->reg.NEXT_PC;
}
}
break;
case 4:
case 6:
@ -1321,7 +1357,7 @@ template <typename BASE> uint64_t riscv_hart_msu_vp<BASE>::enter_trap(uint64_t f
this->reg.pending_trap = 0;
}
size_t adr = ucause | (new_priv << 8);
csr[adr] = (trap_id << 31) + cause;
csr[adr] = (trap_id << (traits<BASE>::XLEN - 1)) + cause;
// update mstatus
// xPP field of mstatus is written with the active privilege mode at the time
// of the trap; the x PIE field of mstatus

89
src/iss/arch/riscv_hart_mu_p.h
View File

@ -55,6 +55,8 @@
#include <util/ities.h>
#include <util/sparse_array.h>
#include <iss/semihosting/semihosting.h>
#if defined(__GNUC__)
#define likely(x) __builtin_expect(!!(x), 1)
#define unlikely(x) __builtin_expect(!!(x), 0)
@ -66,7 +68,7 @@
namespace iss {
namespace arch {
template <typename BASE, features_e FEAT = FEAT_NONE> class riscv_hart_mu_p : public BASE {
template <typename BASE, features_e FEAT = FEAT_NONE> class riscv_hart_mu_p : public BASE, public riscv_hart_common {
protected:
const std::array<const char, 4> lvl = {{'U', 'S', 'H', 'M'}};
const std::array<const char*, 16> trap_str = {{""
@ -317,6 +319,8 @@ public:
void set_irq_num(unsigned i) { mcause_max_irq = 1 << util::ilog2(i); }
void set_semihosting_callback(semihosting_cb_t<reg_t> cb) { semihosting_cb = cb; };
protected:
struct riscv_instrumentation_if : public iss::instrumentation_if {
@ -349,6 +353,8 @@ protected:
unsigned get_reg_size(unsigned num) override { return traits<BASE>::reg_bit_widths[num]; }
std::unordered_map<std::string, uint64_t> get_symbol_table(std::string name) override { return arch.get_sym_table(name); }
riscv_hart_mu_p<BASE, FEAT>& arch;
};
@ -371,9 +377,11 @@ protected:
reg_t fault_data;
uint64_t tohost = tohost_dflt;
uint64_t fromhost = fromhost_dflt;
unsigned to_host_wr_cnt = 0;
bool tohost_lower_written = false;
riscv_instrumentation_if instr_if;
semihosting_cb_t<reg_t> semihosting_cb;
using mem_type = util::sparse_array<uint8_t, 1ULL << 32>;
using csr_type = util::sparse_array<typename traits<BASE>::reg_t, 1ULL << 12, 12>;
using csr_page_type = typename csr_type::page_type;
@ -672,7 +680,7 @@ template <typename BASE, features_e FEAT> std::pair<uint64_t, bool> riscv_hart_m
auto res = this->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_WRITE, traits<BASE>::MEM,
pseg->get_physical_address(), fsize, reinterpret_cast<const uint8_t* const>(seg_data));
if(res != iss::Ok)
LOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
CPPLOG(ERR) << "problem writing " << fsize << "bytes to 0x" << std::hex << pseg->get_physical_address();
}
}
for(const auto sec : reader.sections) {
@ -812,11 +820,11 @@ iss::status riscv_hart_mu_p<BASE, FEAT>::read(const address_type type, const acc
const unsigned length, uint8_t* const data) {
#ifndef NDEBUG
if(access && iss::access_type::DEBUG) {
LOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "debug read of " << length << " bytes @addr 0x" << std::hex << addr;
} else if(is_fetch(access)) {
LOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACEALL) << "fetch of " << length << " bytes @addr 0x" << std::hex << addr;
} else {
LOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
CPPLOG(TRACE) << "read of " << length << " bytes @addr 0x" << std::hex << addr;
}
#endif
try {
@ -907,23 +915,23 @@ iss::status riscv_hart_mu_p<BASE, FEAT>::write(const address_type type, const ac
const char* prefix = (access && iss::access_type::DEBUG) ? "debug " : "";
switch(length) {
case 8:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint64_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 4:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint32_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 2:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << *(uint16_t*)&data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
case 1:
LOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes (0x" << std::hex << (uint16_t)data[0] << std::dec << ") @addr 0x"
<< std::hex << addr;
break;
default:
LOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
CPPLOG(TRACE) << prefix << "write of " << length << " bytes @addr " << addr;
}
#endif
try {
@ -984,7 +992,7 @@ iss::status riscv_hart_mu_p<BASE, FEAT>::write(const address_type type, const ac
case 0x10023000: // UART1 base, TXFIFO reg
uart_buf << (char)data[0];
if(((char)data[0]) == '\n' || data[0] == 0) {
// LOG(INFO)<<"UART"<<((addr>>16)&0x3)<<" send
// CPPLOG(INFO)<<"UART"<<((addr>>16)&0x3)<<" send
// '"<<uart_buf.str()<<"'";
std::cout << uart_buf.str();
uart_buf.str("");
@ -1317,9 +1325,10 @@ iss::status riscv_hart_mu_p<BASE, FEAT>::read_mem(phys_addr_t paddr, unsigned le
template <typename BASE, features_e FEAT>
iss::status riscv_hart_mu_p<BASE, FEAT>::write_mem(phys_addr_t paddr, unsigned length, const uint8_t* const data) {
switch(paddr.val) {
// TODO remove UART, Peripherals should not be part of the ISS
case 0xFFFF0000: // UART0 base, TXFIFO reg
if(((char)data[0]) == '\n' || data[0] == 0) {
LOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "UART" << ((paddr.val >> 12) & 0x3) << " send '" << uart_buf.str() << "'";
uart_buf.str("");
} else if(((char)data[0]) != '\r')
uart_buf << (char)data[0];
@ -1334,34 +1343,37 @@ iss::status riscv_hart_mu_p<BASE, FEAT>::write_mem(phys_addr_t paddr, unsigned l
auto tohost_lower = (traits<BASE>::XLEN == 32 && paddr.val == tohost) || (traits<BASE>::XLEN == 64 && paddr.val == tohost);
if(tohost_lower || tohost_upper) {
uint64_t hostvar = *reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask));
if(tohost_upper || (tohost_lower && to_host_wr_cnt > 0)) {
// in case of 32 bit system, two writes to tohost are needed, only evaluate on the second (high) write
if(tohost_upper && (tohost_lower || tohost_lower_written)) {
switch(hostvar >> 48) {
case 0:
if(hostvar != 0x1) {
LOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(FATAL) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
} else {
LOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
CPPLOG(INFO) << "tohost value is 0x" << std::hex << hostvar << std::dec << " (" << hostvar
<< "), stopping simulation";
}
this->reg.trap_state = std::numeric_limits<uint32_t>::max();
this->interrupt_sim = hostvar;
#ifndef WITH_TCC
throw(iss::simulation_stopped(hostvar));
#endif
break;
// throw(iss::simulation_stopped(hostvar));
case 0x0101: {
char c = static_cast<char>(hostvar & 0xff);
if(c == '\n' || c == 0) {
LOG(INFO) << "tohost send '" << uart_buf.str() << "'";
CPPLOG(INFO) << "tohost send '" << uart_buf.str() << "'";
uart_buf.str("");
} else
uart_buf << c;
to_host_wr_cnt = 0;
} break;
default:
break;
}
tohost_lower_written = false;
} else if(tohost_lower)
to_host_wr_cnt++;
tohost_lower_written = true;
} else if((traits<BASE>::XLEN == 32 && paddr.val == fromhost + 4) || (traits<BASE>::XLEN == 64 && paddr.val == fromhost)) {
uint64_t fhostvar = *reinterpret_cast<uint64_t*>(p.data() + (fromhost & mem.page_addr_mask));
*reinterpret_cast<uint64_t*>(p.data() + (tohost & mem.page_addr_mask)) = fhostvar;
@ -1474,6 +1486,31 @@ template <typename BASE, features_e FEAT> uint64_t riscv_hart_mu_p<BASE, FEAT>::
} else {
csr[utval | (new_priv << 8)] = addr;
}
if(semihosting_cb) {
// Check for semihosting call
phys_addr_t p_addr(access_type::DEBUG_READ, traits<BASE>::MEM, addr - 4);
std::array<uint8_t, 8> data;
// check for SLLI_X0_X0_0X1F and SRAI_X0_X0_0X07
this->read_mem(p_addr, 4, data.data());
p_addr.val += 8;
this->read_mem(p_addr, 4, data.data() + 4);
const std::array<uint8_t, 8> ref_data = {0x13, 0x10, 0xf0, 0x01, 0x13, 0x50, 0x70, 0x40};
if(data == ref_data) {
this->reg.NEXT_PC = addr + 8;
std::array<char, 32> buffer;
#if defined(_MSC_VER)
sprintf(buffer.data(), "0x%016llx", addr);
#else
sprintf(buffer.data(), "0x%016lx", addr);
#endif
CLOG(INFO, disass) << "Semihosting call at address " << buffer.data() << " occurred ";
semihosting_cb(this, &(this->reg.X10) /*a0*/, &(this->reg.X11) /*a1*/);
return this->reg.NEXT_PC;
}
}
break;
case 4:
case 6:

2
src/iss/arch/tgc5c.h
View File

@ -81,7 +81,7 @@ template <> struct traits<tgc5c> {
enum sreg_flag_e { FLAGS };
enum mem_type_e { MEM, FENCE, RES, CSR };
enum mem_type_e { MEM, FENCE, RES, CSR, IMEM = MEM };
enum class opcode_e {
LUI = 0,

14
src/iss/debugger/riscv_target_adapter.h
View File

@ -174,7 +174,7 @@ template <typename ARCH> status riscv_target_adapter<ARCH>::current_thread_query
}
template <typename ARCH> status riscv_target_adapter<ARCH>::read_registers(std::vector<uint8_t>& data, std::vector<uint8_t>& avail) {
LOG(TRACE) << "reading target registers";
CPPLOG(TRACE) << "reading target registers";
// return idx<0?:;
data.clear();
avail.clear();
@ -328,9 +328,9 @@ template <typename ARCH> status riscv_target_adapter<ARCH>::add_break(break_type
auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
auto eaddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr + length});
target_adapter_base::bp_lut.addEntry(++target_adapter_base::bp_count, saddr.val, eaddr.val - saddr.val);
LOG(TRACE) << "Adding breakpoint with handle " << target_adapter_base::bp_count << " for addr 0x" << std::hex << saddr.val
<< std::dec;
LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
CPPLOG(TRACE) << "Adding breakpoint with handle " << target_adapter_base::bp_count << " for addr 0x" << std::hex << saddr.val
<< std::dec;
CPPLOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
return Ok;
}
}
@ -345,13 +345,13 @@ template <typename ARCH> status riscv_target_adapter<ARCH>::remove_break(break_t
auto saddr = map_addr({iss::access_type::FETCH, iss::address_type::PHYSICAL, 0, addr});
unsigned handle = target_adapter_base::bp_lut.getEntry(saddr.val);
if(handle) {
LOG(TRACE) << "Removing breakpoint with handle " << handle << " for addr 0x" << std::hex << saddr.val << std::dec;
CPPLOG(TRACE) << "Removing breakpoint with handle " << handle << " for addr 0x" << std::hex << saddr.val << std::dec;
// TODO: check length of addr range
target_adapter_base::bp_lut.removeEntry(handle);
LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
CPPLOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
return Ok;
}
LOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
CPPLOG(TRACE) << "Now having " << target_adapter_base::bp_lut.size() << " breakpoints";
return Err;
}
}

6
src/iss/plugin/cycle_estimate.cpp
View File

@ -61,7 +61,7 @@ bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if&
try {
auto root = YAML::LoadAll(is);
if(root.size() != 1) {
LOG(ERR) << "Too many root nodes in YAML file " << config_file_name;
CPPLOG(ERR) << "Too many root nodes in YAML file " << config_file_name;
}
for(auto p : root[0]) {
auto isa_subset = p.first;
@ -87,11 +87,11 @@ bool iss::plugin::cycle_estimate::registration(const char* const version, vm_if&
}
}
} catch(YAML::ParserException& e) {
LOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
CPPLOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
return false;
}
} else {
LOG(ERR) << "Could not open input file " << config_file_name;
CPPLOG(ERR) << "Could not open input file " << config_file_name;
return false;
}
}

8
src/iss/plugin/instruction_count.cpp
View File

@ -47,7 +47,7 @@ iss::plugin::instruction_count::instruction_count(std::string config_file_name)
try {
auto root = YAML::LoadAll(is);
if(root.size() != 1) {
LOG(ERR) << "Too many rro nodes in YAML file " << config_file_name;
CPPLOG(ERR) << "Too many rro nodes in YAML file " << config_file_name;
}
for(auto p : root[0]) {
auto isa_subset = p.first;
@ -69,10 +69,10 @@ iss::plugin::instruction_count::instruction_count(std::string config_file_name)
}
rep_counts.resize(delays.size());
} catch(YAML::ParserException& e) {
LOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
CPPLOG(ERR) << "Could not parse input file " << config_file_name << ", reason: " << e.what();
}
} else {
LOG(ERR) << "Could not open input file " << config_file_name;
CPPLOG(ERR) << "Could not open input file " << config_file_name;
}
}
}
@ -81,7 +81,7 @@ iss::plugin::instruction_count::~instruction_count() {
size_t idx = 0;
for(auto it : delays) {
if(rep_counts[idx] > 0 && it.instr_name.find("__" != 0))
LOG(INFO) << it.instr_name << ";" << rep_counts[idx];
CPPLOG(INFO) << it.instr_name << ";" << rep_counts[idx];
idx++;
}
}

297
src/iss/semihosting/semihosting.cpp Normal file
View File

@ -0,0 +1,297 @@
#include "semihosting.h"
#include <chrono>
#include <cstdint>
#include <iss/vm_types.h>
#include <map>
#include <stdexcept>
// explanation of syscalls can be found at https://github.com/SpinalHDL/openocd_riscv/blob/riscv_spinal/src/target/semihosting_common.h
const char* SYS_OPEN_MODES_STRS[] = {"r", "rb", "r+", "r+b", "w", "wb", "w+", "w+b", "a", "ab", "a+", "a+b"};
template <typename T> T sh_read_field(iss::arch_if* arch_if_ptr, T addr, int len = 4) {
uint8_t bytes[4];
auto res = arch_if_ptr->read(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, addr, 4, &bytes[0]);
// auto res = arch_if_ptr->read(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, *parameter, 1, &character);
if(res != iss::Ok) {
return 0; // TODO THROW ERROR
} else
return static_cast<T>(bytes[0]) | (static_cast<T>(bytes[1]) << 8) | (static_cast<T>(bytes[2]) << 16) |
(static_cast<T>(bytes[3]) << 24);
}
template <typename T> std::string sh_read_string(iss::arch_if* arch_if_ptr, T addr, T str_len) {
std::vector<uint8_t> buffer(str_len);
for(int i = 0; i < str_len; i++) {
buffer[i] = sh_read_field(arch_if_ptr, addr + i, 1);
}
std::string str(buffer.begin(), buffer.end());
return str;
}
template <typename T> void semihosting_callback<T>::operator()(iss::arch_if* arch_if_ptr, T* call_number, T* parameter) {
static std::map<T, FILE*> openFiles;
static T file_count = 3;
static T semihostingErrno;
switch(static_cast<semihosting_syscalls>(*call_number)) {
case semihosting_syscalls::SYS_CLOCK: {
auto end = std::chrono::high_resolution_clock::now(); // end measurement
auto elapsed = end - timeVar;
auto millis = std::chrono::duration_cast<std::chrono::milliseconds>(elapsed).count();
*call_number = millis; // TODO get time now
break;
}
case semihosting_syscalls::SYS_CLOSE: {
T file_handle = *parameter;
if(openFiles.size() <= file_handle && file_handle < 0) {
semihostingErrno = EBADF;
return;
}
auto file = openFiles[file_handle];
openFiles.erase(file_handle);
if(!(file == stdin || file == stdout || file == stderr)) {
int i = fclose(file);
*call_number = i;
} else {
*call_number = -1;
semihostingErrno = EINTR;
}
break;
}
case semihosting_syscalls::SYS_ELAPSED: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
case semihosting_syscalls::SYS_ERRNO: {
*call_number = semihostingErrno;
break;
}
case semihosting_syscalls::SYS_EXIT: {
throw std::runtime_error("ISS terminated by Semihost: SYS_EXIT");
break;
}
case semihosting_syscalls::SYS_EXIT_EXTENDED: {
throw std::runtime_error("ISS terminated by Semihost: SYS_EXIT_EXTENDED");
break;
}
case semihosting_syscalls::SYS_FLEN: {
T file_handle = *parameter;
auto file = openFiles[file_handle];
size_t currentPos = ftell(file);
if(currentPos < 0)
throw std::runtime_error("SYS_FLEN negative value");
fseek(file, 0, SEEK_END);
size_t length = ftell(file);
fseek(file, currentPos, SEEK_SET);
*call_number = (T)length;
break;
}
case semihosting_syscalls::SYS_GET_CMDLINE: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
case semihosting_syscalls::SYS_HEAPINFO: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
case semihosting_syscalls::SYS_ISERROR: {
T value = *parameter;
*call_number = (value != 0);
break;
}
case semihosting_syscalls::SYS_ISTTY: {
T file_handle = *parameter;
*call_number = (file_handle == 0 || file_handle == 1 || file_handle == 2);
break;
}
case semihosting_syscalls::SYS_OPEN: {
T path_str_addr = sh_read_field<T>(arch_if_ptr, *parameter);
T mode = sh_read_field<T>(arch_if_ptr, 4 + (*parameter));
T path_len = sh_read_field<T>(arch_if_ptr, 8 + (*parameter));
std::string path_str = sh_read_string<T>(arch_if_ptr, path_str_addr, path_len);
// TODO LOG INFO
if(mode >= 12) {
// TODO throw ERROR
return;
}
FILE* file = nullptr;
if(path_str == ":tt") {
if(mode < 4)
file = stdin;
else if(mode < 8)
file = stdout;
else
file = stderr;
} else {
file = fopen(path_str.c_str(), SYS_OPEN_MODES_STRS[mode]);
if(file == nullptr) {
// TODO throw error
return;
}
}
T file_handle = file_count++;
openFiles[file_handle] = file;
*call_number = file_handle;
break;
}
case semihosting_syscalls::SYS_READ: {
T file_handle = sh_read_field<T>(arch_if_ptr, (*parameter) + 4);
T addr = sh_read_field<T>(arch_if_ptr, *parameter);
T count = sh_read_field<T>(arch_if_ptr, (*parameter) + 8);
auto file = openFiles[file_handle];
std::vector<uint8_t> buffer(count);
size_t num_read = 0;
if(file == stdin) {
// when reading from stdin: mimic behaviour from read syscall
// and return on newline.
while(num_read < count) {
char c = fgetc(file);
buffer[num_read] = c;
num_read++;
if(c == '\n')
break;
}
} else {
num_read = fread(buffer.data(), 1, count, file);
}
buffer.resize(num_read);
for(int i = 0; i < num_read; i++) {
auto res = arch_if_ptr->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, addr + i, 1, &buffer[i]);
if(res != iss::Ok)
return;
}
*call_number = count - num_read;
break;
}
case semihosting_syscalls::SYS_READC: {
uint8_t character = getchar();
// character = getchar();
/*if(character != iss::Ok)
std::cout << "Not OK";
return;*/
*call_number = character;
break;
}
case semihosting_syscalls::SYS_REMOVE: {
T path_str_addr = sh_read_field<T>(arch_if_ptr, *parameter);
T path_len = sh_read_field<T>(arch_if_ptr, (*parameter) + 4);
std::string path_str = sh_read_string<T>(arch_if_ptr, path_str_addr, path_len);
if(remove(path_str.c_str()) < 0)
*call_number = -1;
break;
}
case semihosting_syscalls::SYS_RENAME: {
T path_str_addr_old = sh_read_field<T>(arch_if_ptr, *parameter);
T path_len_old = sh_read_field<T>(arch_if_ptr, (*parameter) + 4);
T path_str_addr_new = sh_read_field<T>(arch_if_ptr, (*parameter) + 8);
T path_len_new = sh_read_field<T>(arch_if_ptr, (*parameter) + 12);
std::string path_str_old = sh_read_string<T>(arch_if_ptr, path_str_addr_old, path_len_old);
std::string path_str_new = sh_read_string<T>(arch_if_ptr, path_str_addr_new, path_len_new);
rename(path_str_old.c_str(), path_str_new.c_str());
break;
}
case semihosting_syscalls::SYS_SEEK: {
T file_handle = sh_read_field<T>(arch_if_ptr, *parameter);
T pos = sh_read_field<T>(arch_if_ptr, (*parameter) + 1);
auto file = openFiles[file_handle];
int retval = fseek(file, pos, SEEK_SET);
if(retval < 0)
throw std::runtime_error("SYS_SEEK negative return value");
break;
}
case semihosting_syscalls::SYS_SYSTEM: {
T cmd_addr = sh_read_field<T>(arch_if_ptr, *parameter);
T cmd_len = sh_read_field<T>(arch_if_ptr, (*parameter) + 1);
std::string cmd = sh_read_string<T>(arch_if_ptr, cmd_addr, cmd_len);
system(cmd.c_str());
break;
}
case semihosting_syscalls::SYS_TICKFREQ: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
case semihosting_syscalls::SYS_TIME: {
// returns time in seconds scince 01.01.1970 00:00
*call_number = time(NULL);
break;
}
case semihosting_syscalls::SYS_TMPNAM: {
T buffer_addr = sh_read_field<T>(arch_if_ptr, *parameter);
T identifier = sh_read_field<T>(arch_if_ptr, (*parameter) + 1);
T buffer_len = sh_read_field<T>(arch_if_ptr, (*parameter) + 2);
if(identifier > 255) {
*call_number = -1;
return;
}
std::stringstream ss;
ss << "tmp/file-" << std::setfill('0') << std::setw(3) << identifier;
std::string filename = ss.str();
for(int i = 0; i < buffer_len; i++) {
uint8_t character = filename[i];
auto res = arch_if_ptr->write(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, (*parameter) + i, 1, &character);
if(res != iss::Ok)
return;
}
break;
}
case semihosting_syscalls::SYS_WRITE: {
T file_handle = sh_read_field<T>(arch_if_ptr, (*parameter) + 4);
T addr = sh_read_field<T>(arch_if_ptr, *parameter);
T count = sh_read_field<T>(arch_if_ptr, (*parameter) + 8);
auto file = openFiles[file_handle];
std::string str = sh_read_string<T>(arch_if_ptr, addr, count);
fwrite(&str[0], 1, count, file);
break;
}
case semihosting_syscalls::SYS_WRITEC: {
uint8_t character;
auto res = arch_if_ptr->read(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, *parameter, 1, &character);
if(res != iss::Ok)
return;
putchar(character);
break;
}
case semihosting_syscalls::SYS_WRITE0: {
uint8_t character;
while(1) {
auto res = arch_if_ptr->read(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0, *parameter, 1, &character);
if(res != iss::Ok)
return;
if(character == 0)
break;
putchar(character);
(*parameter)++;
}
break;
}
case semihosting_syscalls::USER_CMD_0x100: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
case semihosting_syscalls::USER_CMD_0x1FF: {
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
default:
throw std::runtime_error("Semihosting Call not Implemented");
break;
}
}
template class semihosting_callback<uint32_t>;
template class semihosting_callback<uint64_t>;

61
src/iss/semihosting/semihosting.h Normal file
View File

@ -0,0 +1,61 @@
#ifndef _SEMIHOSTING_H_
#define _SEMIHOSTING_H_
#include <chrono>
#include <functional>
#include <iss/arch_if.h>
/*
* According to:
* "Semihosting for AArch32 and AArch64, Release 2.0"
* https://static.docs.arm.com/100863/0200/semihosting.pdf
* from ARM Ltd.
*
* The available semihosting operation numbers passed in A0 are allocated
* as follows:
* - 0x00-0x31 Used by ARM.
* - 0x32-0xFF Reserved for future use by ARM.
* - 0x100-0x1FF Reserved for user applications. These are not used by ARM.
* However, if you are writing your own SVC operations, you are advised
* to use a different SVC number rather than using the semihosted
* SVC number and these operation type numbers.
* - 0x200-0xFFFFFFFF Undefined and currently unused. It is recommended
* that you do not use these.
*/
enum class semihosting_syscalls {
SYS_OPEN = 0x01,
SYS_CLOSE = 0x02,
SYS_WRITEC = 0x03,
SYS_WRITE0 = 0x04,
SYS_WRITE = 0x05,
SYS_READ = 0x06,
SYS_READC = 0x07,
SYS_ISERROR = 0x08,
SYS_ISTTY = 0x09,
SYS_SEEK = 0x0A,
SYS_FLEN = 0x0C,
SYS_TMPNAM = 0x0D,
SYS_REMOVE = 0x0E,
SYS_RENAME = 0x0F,
SYS_CLOCK = 0x10,
SYS_TIME = 0x11,
SYS_SYSTEM = 0x12,
SYS_ERRNO = 0x13,
SYS_GET_CMDLINE = 0x15,
SYS_HEAPINFO = 0x16,
SYS_EXIT = 0x18,
SYS_EXIT_EXTENDED = 0x20,
SYS_ELAPSED = 0x30,
SYS_TICKFREQ = 0x31,
USER_CMD_0x100 = 0x100,
USER_CMD_0x1FF = 0x1FF,
};
template <typename T> struct semihosting_callback {
std::chrono::high_resolution_clock::time_point timeVar;
semihosting_callback()
: timeVar(std::chrono::high_resolution_clock::now()) {}
void operator()(iss::arch_if* arch_if_ptr, T* call_number, T* parameter);
};
template <typename T> using semihosting_cb_t = std::function<void(iss::arch_if*, T*, T*)>;
#endif

59
src/main.cpp
View File

@ -31,8 +31,12 @@
*******************************************************************************/
#include <array>
#include <cstdint>
#include <iostream>
#include <iss/factory.h>
#include <iss/semihosting/semihosting.h>
#include <string>
#include <unordered_map>
#include <vector>
#include "iss/arch/tgc_mapper.h"
@ -52,7 +56,6 @@
#endif
namespace po = boost::program_options;
int main(int argc, char* argv[]) {
/*
* Define and parse the program options
@ -72,7 +75,7 @@ int main(int argc, char* argv[]) {
("elf,f", po::value<std::vector<std::string>>(), "ELF file(s) to load")
("mem,m", po::value<std::string>(), "the memory input file")
("plugin,p", po::value<std::vector<std::string>>(), "plugin to activate")
("backend", po::value<std::string>()->default_value("interp"), "the ISS backend to use, options are: interp, tcc")
("backend", po::value<std::string>()->default_value("interp"), "the ISS backend to use, options are: interp, llvm, tcc, asmjit")
("isa", po::value<std::string>()->default_value("tgc5c"), "core or isa name to use for simulation, use '?' to get list");
// clang-format on
auto parsed = po::command_line_parser(argc, argv).options(desc).allow_unregistered().run();
@ -116,6 +119,8 @@ int main(int argc, char* argv[]) {
// instantiate the simulator
iss::vm_ptr vm{nullptr};
iss::cpu_ptr cpu{nullptr};
semihosting_callback<uint32_t> cb{};
semihosting_cb_t<uint32_t> semihosting_cb = [&cb](iss::arch_if* i, uint32_t* a0, uint32_t* a1) { cb(i, a0, a1); };
std::string isa_opt(clim["isa"].as<std::string>());
if(isa_opt.size() == 0 || isa_opt == "?") {
auto list = f.get_names();
@ -123,7 +128,8 @@ int main(int argc, char* argv[]) {
std::cout << "Available implementations (core|platform|backend):\n - " << util::join(list, "\n - ") << std::endl;
return 0;
} else if(isa_opt.find('|') != std::string::npos) {
std::tie(cpu, vm) = f.create(isa_opt + "|" + clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>());
std::tie(cpu, vm) =
f.create(isa_opt + "|" + clim["backend"].as<std::string>(), clim["gdb-port"].as<unsigned>(), &semihosting_cb);
} else {
auto base_isa = isa_opt.substr(0, 5);
if(base_isa == "tgc5d" || base_isa == "tgc5e") {
@ -131,14 +137,14 @@ int main(int argc, char* argv[]) {
} else {
isa_opt += "|m_p|" + clim["backend"].as<std::string>();
}
std::tie(cpu, vm) = f.create(isa_opt, clim["gdb-port"].as<unsigned>());
std::tie(cpu, vm) = f.create(isa_opt, clim["gdb-port"].as<unsigned>(), &semihosting_cb);
}
if(!cpu) {
LOG(ERR) << "Could not create cpu for isa " << isa_opt << " and backend " << clim["backend"].as<std::string>() << std::endl;
CPPLOG(ERR) << "Could not create cpu for isa " << isa_opt << " and backend " << clim["backend"].as<std::string>() << std::endl;
return 127;
}
if(!vm) {
LOG(ERR) << "Could not create vm for isa " << isa_opt << " and backend " << clim["backend"].as<std::string>() << std::endl;
CPPLOG(ERR) << "Could not create vm for isa " << isa_opt << " and backend " << clim["backend"].as<std::string>() << std::endl;
return 127;
}
if(clim.count("plugin")) {
@ -174,7 +180,7 @@ int main(int argc, char* argv[]) {
} else
#endif
{
LOG(ERR) << "Unknown plugin name: " << plugin_name << ", valid names are 'ce', 'ic'" << std::endl;
CPPLOG(ERR) << "Unknown plugin name: " << plugin_name << ", valid names are 'ce', 'ic'" << std::endl;
return 127;
}
}
@ -196,12 +202,12 @@ int main(int argc, char* argv[]) {
if(clim.count("elf"))
for(std::string input : clim["elf"].as<std::vector<std::string>>()) {
auto start_addr = vm->get_arch()->load_file(input);
if(start_addr.second)
if(start_addr.second) // FIXME: this always evaluates to true as load file always returns <sth, true>
start_address = start_addr.first;
}
for(std::string input : args) {
auto start_addr = vm->get_arch()->load_file(input); // treat remaining arguments as elf files
if(start_addr.second)
if(start_addr.second) // FIXME: this always evaluates to true as load file always returns <sth, true>
start_address = start_addr.first;
}
if(clim.count("reset")) {
@ -211,11 +217,42 @@ int main(int argc, char* argv[]) {
vm->reset(start_address);
auto cycles = clim["instructions"].as<uint64_t>();
res = vm->start(cycles, dump);
auto instr_if = vm->get_arch()->get_instrumentation_if();
// this assumes a single input file
std::unordered_map<std::string, uint64_t> sym_table;
if(args.empty())
sym_table = instr_if->get_symbol_table(clim["elf"].as<std::vector<std::string>>()[0]);
else
sym_table = instr_if->get_symbol_table(args[0]);
if(sym_table.find("begin_signature") != std::end(sym_table) && sym_table.find("end_signature") != std::end(sym_table)) {
auto start_addr = sym_table["begin_signature"];
auto end_addr = sym_table["end_signature"];
std::array<uint8_t, 4> data;
std::ofstream file;
std::string filename = fmt::format("{}.signature", isa_opt);
std::replace(std::begin(filename), std::end(filename), '|', '_');
// default riscof requires this filename
filename = "DUT-tgc.signature";
file.open(filename, std::ios::out);
if(!file.is_open()) {
LOG(ERR) << "Error opening file " << filename << std::endl;
return 1;
}
for(auto addr = start_addr; addr < end_addr; addr += data.size()) {
vm->get_arch()->read(iss::address_type::PHYSICAL, iss::access_type::DEBUG_READ, 0 /*MEM*/, addr, data.size(),
data.data()); // FIXME: get space from iss::arch::traits<ARCH>::mem_type_e::MEM
// TODO : obey Target endianess
uint32_t to_print = (data[3] << 24) + (data[2] << 16) + (data[1] << 8) + data[0];
file << std::hex << fmt::format("{:08x}", to_print) << std::dec << std::endl;
}
}
} catch(std::exception& e) {
LOG(ERR) << "Unhandled Exception reached the top of main: " << e.what() << ", application will now exit" << std::endl;
CPPLOG(ERR) << "Unhandled Exception reached the top of main: " << e.what() << ", application will now exit" << std::endl;
res = 2;
}
// cleanup to let plugins report of needed
// cleanup to let plugins report if needed
for(auto* p : plugin_list) {
delete p;
}

537
src/vm/asmjit/helper_func.h
View File

@ -1,537 +0,0 @@
x86::Mem get_reg_ptr(jit_holder& jh, unsigned idx) {
x86::Gp tmp_ptr = jh.cc.newUIntPtr("tmp_ptr");
jh.cc.mov(tmp_ptr, jh.regs_base_ptr);
jh.cc.add(tmp_ptr, traits::reg_byte_offsets[idx]);
switch(traits::reg_bit_widths[idx]) {
case 8:
return x86::ptr_8(tmp_ptr);
case 16:
return x86::ptr_16(tmp_ptr);
case 32:
return x86::ptr_32(tmp_ptr);
case 64:
return x86::ptr_64(tmp_ptr);
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
x86::Gp get_reg_for(jit_holder& jh, unsigned idx) {
// TODO can check for regs in jh and return them instead of creating new ones
switch(traits::reg_bit_widths[idx]) {
case 8:
return jh.cc.newInt8();
case 16:
return jh.cc.newInt16();
case 32:
return jh.cc.newInt32();
case 64:
return jh.cc.newInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
x86::Gp get_reg_for(jit_holder& jh, unsigned size, bool is_signed) {
if(is_signed)
switch(size) {
case 8:
return jh.cc.newInt8();
case 16:
return jh.cc.newInt16();
case 32:
return jh.cc.newInt32();
case 64:
return jh.cc.newInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
else
switch(size) {
case 8:
return jh.cc.newUInt8();
case 16:
return jh.cc.newUInt16();
case 32:
return jh.cc.newUInt32();
case 64:
return jh.cc.newUInt64();
default:
throw std::runtime_error("Invalid reg size in get_reg_ptr");
}
}
inline x86::Gp load_reg_from_mem(jit_holder& jh, unsigned idx) {
auto ptr = get_reg_ptr(jh, idx);
auto reg = get_reg_for(jh, idx);
jh.cc.mov(reg, ptr);
return reg;
}
inline void write_reg_to_mem(jit_holder& jh, x86::Gp reg, unsigned idx) {
auto ptr = get_reg_ptr(jh, idx);
jh.cc.mov(ptr, reg);
}
void gen_instr_prologue(jit_holder& jh, addr_t pc) {
auto& cc = jh.cc;
cc.comment("\n//(*icount)++;");
cc.inc(get_reg_ptr(jh, traits::ICOUNT));
cc.comment("\n//*pc=*next_pc;");
cc.mov(get_reg_ptr(jh, traits::PC), jh.next_pc);
cc.comment("\n//*trap_state=*pending_trap;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
cc.mov(get_reg_ptr(jh, traits::PENDING_TRAP), current_trap_state);
cc.comment("\n//increment *next_pc");
cc.mov(jh.next_pc, pc);
}
void gen_instr_epilogue(jit_holder& jh) {
auto& cc = jh.cc;
cc.comment("\n//if(*trap_state!=0) goto trap_entry;");
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
cc.cmp(current_trap_state, 0);
cc.jne(jh.trap_entry);
// TODO: Does not need to be done for every instruction, only when needed
cc.comment("\n//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
}
void gen_block_prologue(jit_holder& jh) override {
jh.pc = load_reg_from_mem(jh, traits::PC);
jh.next_pc = load_reg_from_mem(jh, traits::NEXT_PC);
}
void gen_block_epilogue(jit_holder& jh) override {
x86::Compiler& cc = jh.cc;
cc.comment("\n//return *next_pc;");
cc.ret(jh.next_pc);
cc.bind(jh.trap_entry);
cc.comment("\n//Prepare for enter_trap;");
// Make sure cached values are written back
cc.comment("\n//write back regs to mem");
write_reg_to_mem(jh, jh.pc, traits::PC);
write_reg_to_mem(jh, jh.next_pc, traits::NEXT_PC);
this->gen_sync(jh, POST_SYNC, -1);
x86::Gp current_trap_state = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(current_trap_state, get_reg_ptr(jh, traits::TRAP_STATE));
x86::Gp current_pc = get_reg_for(jh, traits::PC);
cc.mov(current_pc, get_reg_ptr(jh, traits::PC));
x86::Gp instr = cc.newInt32("instr");
cc.mov(instr, 0); // this is not correct
cc.comment("\n//enter trap call;");
InvokeNode* call_enter_trap;
cc.invoke(&call_enter_trap, &enter_trap, FuncSignatureT<uint64_t, void*, uint64_t, uint64_t, uint64_t>());
call_enter_trap->setArg(0, jh.arch_if_ptr);
call_enter_trap->setArg(1, current_trap_state);
call_enter_trap->setArg(2, current_pc);
call_enter_trap->setArg(3, instr);
x86::Gp current_next_pc = get_reg_for(jh, traits::NEXT_PC);
cc.mov(current_next_pc, get_reg_ptr(jh, traits::NEXT_PC));
cc.mov(jh.next_pc, current_next_pc);
cc.comment("\n//*last_branch = std::numeric_limits<uint32_t>::max();");
cc.mov(get_reg_ptr(jh, traits::LAST_BRANCH), std::numeric_limits<uint32_t>::max());
cc.comment("\n//return *next_pc;");
cc.ret(jh.next_pc);
}
/*
inline void raise(uint16_t trap_id, uint16_t cause){
auto trap_val = 0x80ULL << 24 | (cause << 16) | trap_id;
this->core.reg.trap_state = trap_val;
this->template get_reg<uint32_t>(traits::NEXT_PC) = std::numeric_limits<uint32_t>::max();
}
*/
inline void gen_raise(jit_holder& jh, uint16_t trap_id, uint16_t cause) {
auto& cc = jh.cc;
cc.comment("//gen_raise");
auto tmp1 = get_reg_for(jh, traits::TRAP_STATE);
cc.mov(tmp1, 0x80ULL << 24 | (cause << 16) | trap_id);
cc.mov(get_reg_ptr(jh, traits::TRAP_STATE), tmp1);
auto tmp2 = get_reg_for(jh, traits::NEXT_PC);
cc.mov(tmp2, std::numeric_limits<uint32_t>::max());
cc.mov(get_reg_ptr(jh, traits::NEXT_PC), tmp2);
}
inline void gen_wait(jit_holder& jh, unsigned type) { jh.cc.comment("//gen_wait"); }
inline void gen_leave(jit_holder& jh, unsigned lvl) { jh.cc.comment("//gen_leave"); }
enum operation { add, sub, band, bor, bxor, shl, sar, shr };
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value || std::is_same<T, x86::Gp>::value>>
x86::Gp gen_operation(jit_holder& jh, operation op, x86::Gp a, T b) {
x86::Compiler& cc = jh.cc;
switch(op) {
case add: {
cc.add(a, b);
break;
}
case sub: {
cc.sub(a, b);
break;
}
case band: {
cc.and_(a, b);
break;
}
case bor: {
cc.or_(a, b);
break;
}
case bxor: {
cc.xor_(a, b);
break;
}
case shl: {
cc.shl(a, b);
break;
}
case sar: {
cc.sar(a, b);
break;
}
case shr: {
cc.shr(a, b);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (operation)", op));
}
return a;
}
enum three_operand_operation { imul, mul, idiv, div, srem, urem };
x86::Gp gen_operation(jit_holder& jh, three_operand_operation op, x86::Gp a, x86::Gp b) {
x86::Compiler& cc = jh.cc;
switch(op) {
case imul: {
x86::Gp dummy = cc.newInt64();
cc.imul(dummy, a.r64(), b.r64());
return a;
}
case mul: {
x86::Gp dummy = cc.newInt64();
cc.mul(dummy, a.r64(), b.r64());
return a;
}
case idiv: {
x86::Gp dummy = cc.newInt64();
cc.mov(dummy, 0);
cc.idiv(dummy, a.r64(), b.r64());
return a;
}
case div: {
x86::Gp dummy = cc.newInt64();
cc.mov(dummy, 0);
cc.div(dummy, a.r64(), b.r64());
return a;
}
case srem: {
x86::Gp rem = cc.newInt32();
cc.mov(rem, 0);
auto a_reg = cc.newInt32();
cc.mov(a_reg, a.r32());
cc.idiv(rem, a_reg, b.r32());
return rem;
}
case urem: {
x86::Gp rem = cc.newInt32();
cc.mov(rem, 0);
auto a_reg = cc.newInt32();
cc.mov(a_reg, a.r32());
cc.div(rem, a_reg, b.r32());
return rem;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (three_operand)", op));
}
return a;
}
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value>>
x86::Gp gen_operation(jit_holder& jh, three_operand_operation op, x86::Gp a, T b) {
x86::Gp b_reg = jh.cc.newInt32();
/* switch(a.size()){
case 1: b_reg = jh.cc.newInt8(); break;
case 2: b_reg = jh.cc.newInt16(); break;
case 4: b_reg = jh.cc.newInt32(); break;
case 8: b_reg = jh.cc.newInt64(); break;
default: throw std::runtime_error(fmt::format("Invalid size ({}) in gen operation", a.size()));
} */
jh.cc.mov(b_reg, b);
return gen_operation(jh, op, a, b_reg);
}
enum comparison_operation { land, lor, eq, ne, lt, ltu, gt, gtu, lte, lteu, gte, gteu };
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value || std::is_same<T, x86::Gp>::value>>
x86::Gp gen_operation(jit_holder& jh, comparison_operation op, x86::Gp a, T b) {
x86::Compiler& cc = jh.cc;
x86::Gp tmp = cc.newInt8();
cc.mov(tmp, 1);
Label label_then = cc.newLabel();
cc.cmp(a, b);
switch(op) {
case eq:
cc.je(label_then);
break;
case ne:
cc.jne(label_then);
break;
case lt:
cc.jl(label_then);
break;
case ltu:
cc.jb(label_then);
break;
case gt:
cc.jg(label_then);
break;
case gtu:
cc.ja(label_then);
break;
case lte:
cc.jle(label_then);
break;
case lteu:
cc.jbe(label_then);
break;
case gte:
cc.jge(label_then);
break;
case gteu:
cc.jae(label_then);
break;
case land: {
Label label_false = cc.newLabel();
cc.cmp(a, 0);
cc.je(label_false);
auto b_reg = cc.newInt8();
cc.mov(b_reg, b);
cc.cmp(b_reg, 0);
cc.je(label_false);
cc.jmp(label_then);
cc.bind(label_false);
break;
}
case lor: {
cc.cmp(a, 0);
cc.jne(label_then);
auto b_reg = cc.newInt8();
cc.mov(b_reg, b);
cc.cmp(b_reg, 0);
cc.jne(label_then);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (comparison)", op));
}
cc.mov(tmp, 0);
cc.bind(label_then);
return tmp;
}
enum binary_operation { lnot, inc, dec, bnot, neg };
x86::Gp gen_operation(jit_holder& jh, binary_operation op, x86::Gp a) {
x86::Compiler& cc = jh.cc;
switch(op) {
case lnot:
throw std::runtime_error("Current operation not supported in gen_operation(lnot)");
case inc: {
cc.inc(a);
break;
}
case dec: {
cc.dec(a);
break;
}
case bnot: {
cc.not_(a);
break;
}
case neg: {
cc.neg(a);
break;
}
default:
throw std::runtime_error(fmt::format("Current operation {} not supported in gen_operation (unary)", op));
}
return a;
}
template <typename T, typename = std::enable_if_t<std::is_integral<T>::value>>
inline x86::Gp gen_ext(jit_holder& jh, T val, unsigned size, bool is_signed) {
auto val_reg = get_reg_for(jh, sizeof(val) * 8, is_signed);
jh.cc.mov(val_reg, val);
return gen_ext(jh, val_reg, size, is_signed);
}
inline x86::Gp gen_ext(jit_holder& jh, x86::Gp val, unsigned size, bool is_signed) {
auto& cc = jh.cc;
if(is_signed) {
switch(val.size()) {
case 1:
cc.cbw(val);
break;
case 2:
cc.cwde(val);
break;
case 4:
cc.cdqe(val);
break;
case 8:
break;
default:
throw std::runtime_error("Invalid register size in gen_ext");
}
}
switch(size) {
case 8:
cc.and_(val, std::numeric_limits<uint8_t>::max());
return val.r8();
case 16:
cc.and_(val, std::numeric_limits<uint16_t>::max());
return val.r16();
case 32:
cc.and_(val, std::numeric_limits<uint32_t>::max());
return val.r32();
case 64:
cc.and_(val, std::numeric_limits<uint64_t>::max());
return val.r64();
case 128:
return val.r64();
default:
throw std::runtime_error("Invalid size in gen_ext");
}
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, uint32_t length) {
x86::Compiler& cc = jh.cc;
auto ret_reg = cc.newInt32();
auto mem_type_reg = cc.newInt32();
cc.mov(mem_type_reg, type);
auto space_reg = cc.newInt32();
cc.mov(space_reg, static_cast<uint16_t>(iss::address_type::VIRTUAL));
auto val_ptr = cc.newUIntPtr();
cc.mov(val_ptr, read_mem_buf);
InvokeNode* invokeNode;
uint64_t mask = 0;
x86::Gp val_reg = cc.newInt64();
switch(length) {
case 1: {
cc.invoke(&invokeNode, &read_mem1, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint8_t>::max();
break;
}
case 2: {
cc.invoke(&invokeNode, &read_mem2, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint16_t>::max();
break;
}
case 4: {
cc.invoke(&invokeNode, &read_mem4, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint32_t>::max();
break;
}
case 8: {
cc.invoke(&invokeNode, &read_mem8, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uintptr_t>());
mask = std::numeric_limits<uint64_t>::max();
break;
}
default:
throw std::runtime_error(fmt::format("Invalid length ({}) in gen_read_mem", length));
}
invokeNode->setRet(0, ret_reg);
invokeNode->setArg(0, jh.arch_if_ptr);
invokeNode->setArg(1, space_reg);
invokeNode->setArg(2, mem_type_reg);
invokeNode->setArg(3, addr);
invokeNode->setArg(4, val_ptr);
cc.cmp(ret_reg, 0);
cc.jne(jh.trap_entry);
cc.mov(val_reg, x86::ptr_64(val_ptr));
cc.and_(val_reg, mask);
return val_reg;
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, x86::Gp length) {
throw std::runtime_error("Invalid gen_read_mem");
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, uint64_t addr, x86::Gp length) {
throw std::runtime_error("Invalid gen_read_mem");
}
inline x86::Gp gen_read_mem(jit_holder& jh, mem_type_e type, uint64_t addr, uint32_t length) {
auto addr_reg = jh.cc.newInt64();
jh.cc.mov(addr_reg, addr);
return gen_read_mem(jh, type, addr_reg, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, int64_t val, uint32_t length) {
auto val_reg = get_reg_for(jh, length * 8, true);
jh.cc.mov(val_reg, val);
gen_write_mem(jh, type, addr, val_reg, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, x86::Gp addr, x86::Gp val, uint32_t length) {
x86::Compiler& cc = jh.cc;
assert(val.size() == length);
auto mem_type_reg = cc.newInt32();
jh.cc.mov(mem_type_reg, type);
auto space_reg = cc.newInt32();
jh.cc.mov(space_reg, static_cast<uint16_t>(iss::address_type::VIRTUAL));
auto ret_reg = cc.newInt32();
InvokeNode* invokeNode;
switch(length) {
case 1:
cc.invoke(&invokeNode, &write_mem1, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint8_t>());
break;
case 2:
cc.invoke(&invokeNode, &write_mem2, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint16_t>());
break;
case 4:
cc.invoke(&invokeNode, &write_mem4, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint32_t>());
break;
case 8:
cc.invoke(&invokeNode, &write_mem8, FuncSignatureT<uint32_t, uint64_t, uint32_t, uint32_t, uint64_t, uint64_t>());
break;
default:
throw std::runtime_error("Invalid register size in gen_ext");
}
invokeNode->setRet(0, ret_reg);
invokeNode->setArg(0, jh.arch_if_ptr);
invokeNode->setArg(1, space_reg);
invokeNode->setArg(2, mem_type_reg);
invokeNode->setArg(3, addr);
invokeNode->setArg(4, val);
cc.cmp(ret_reg, 0);
cc.jne(jh.trap_entry);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, uint64_t addr, x86::Gp val, uint32_t length) {
auto addr_reg = jh.cc.newUInt64();
jh.cc.mov(addr_reg, addr);
gen_write_mem(jh, type, addr_reg, val, length);
}
inline void gen_write_mem(jit_holder& jh, mem_type_e type, uint64_t addr, int64_t val, uint32_t length) {
auto val_reg = get_reg_for(jh, length * 8, true);
jh.cc.mov(val_reg, val);
auto addr_reg = jh.cc.newUInt64();
jh.cc.mov(addr_reg, addr);
gen_write_mem(jh, type, addr_reg, val_reg, length);
}

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src/vm/asmjit/vm_tgc5c.cpp
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src/vm/interp/vm_tgc5c.cpp
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src/vm/llvm/vm_tgc5c.cpp
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3716
src/vm/tcc/vm_tgc5c.cpp
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